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Jessica BOUCHEZ

Villeneuve d'Ascq Cedex

Bâtiment: Building: E

Bureau: Office: 109

Qui contacter en cas d'absence: In case of emergency:
Olivier DELAFRAYE

Jessica BOUCHEZ

- Gestion des publications,  visibilité des publications et des chercheurs,  identité numérique
scientifique..), culture de diffusion en accès libre

- Administration de l'archive institutionnelle Madis

-Administration du portail Hal Univ-Eiffel

- Politique de signature des publications

- Repérage des publications, fourniture d'indicateurs bibliométriques

- Fonds documentaire du Campus de Lille

-ITRD

Mes dernières références

My latest references

Ma liste HAL


Html Court


Gasperi

Kelsey Smyth, Shuyao Tan, Tim van Seters, Johnny Gasperi, Rachid Dris, et al.
Small-Size Microplastics in Urban Stormwater Runoff are Efficiently Trapped in a Bioretention Cell. ACS ES&T Water, 2024
10.1021/acsestwater.4c00037
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Thiebault, A. Foucher, J.-S. Barbier, P. Labadie, Johnny Gasperi, et al.. Carottes sédimentaires : Un enregistrement de la qualité chimique du milieu ?. Colloque 2024 du PIREN-Seine, PIREN-Seine, Jun 2024, Paris, France
Elie Dhivert, Jean Pruvost, Thierry Winiarski, Johnny Gasperi, Florence Delor-Jestin, et al.
Contributions historiques de la métropole lyonnaise aux contaminations en microplastiques des sédiments du Rhône. Journées du GDR Polymères, Santé, Environnement, GDR Polymères, Santé, Environnement, Jun 2024, Marseille, France
Lucas Friceau, Guilherme Calabro Souza, Mathilde Lê, Célestine Bessaire, Nadia Bouzid, et al.
Transfer and fluxes of microplastics in the watercourses of an agricultural subcatchment (Avenelles). SETAC Europe 34th Annual Meeting, May 2024, Séville, Spain
Phuong Ngoc-Nam, Thi Thuy Duong, Quoc Tuan Pham, Thi Xuan Thinh Ngo, Thi Minh Diep Nguyen, et al.
Anthropogenic particle abundance and characteristics in seawater and intertidal sediments of the Tonkin Bay Coast (North Vietnam). Environmental Monitoring and Assessment, 2024, 196 (6), pp.514
10.1007/s10661-024-12674-3
Max Beaurepaire, Johnny Gasperi, Bruno Tassin, Rachid Dris
COVID lockdown significantly impacted microplastic bulk atmospheric deposition rates. Environmental Pollution, 2024, 344, pp.123354
10.1016/j.envpol.2024.123354
Lauriane Ledieu, Romain Tramoy, David Mabilais, Sophie Ricordel, Marie-Laure Mosini, et al.
Macrodéchets depuis les surfaces urbaines jusqu'aux exutoires pluviaux. 2024
Christelle Nabintu Kajoka, Marcos Oliveira, Sabrina Guérin-Rechdaoui, Johnny Gasperi, Stephan Brosillon, et al.
Oxidation of micropollutants in wastewater disinfected with performic acid. Health & Environment Seminar 2024, SUEZ, Jun 2024, Cannes, France
Christelle Nabintu Kajoka, Marcos Oliveira, Yacine Khadija Diop, Stephan Brosillon, Johnny Gasperi, et al.
Elimination des micropolluants pharmaceutiques dans les eaux résiduaires urbaines désinfectées par l’acide perfomique. Journée scientifique chercheurs Juniors, Jul 2024, Périgueux, France.
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Baratelli, F. Alliot, S. Ayrault, M. Benedetti, T. Berthe, et al.. Contamination de la Seine depuis l’amont jusqu’à l’estuaire. Colloque PIREN-Seine, PIREN-Seine, Jun 2024, Paris, France
Romain Tramoy, Bruno Tassin, Lauriane Ledieu, Rachid Dris, Johnny Gasperi
Macroplastiques dans le continuum Terre-Mer : vers la reconstitution de trajectoires socio-environnementales ?. Réseau Matière Organique (ResMO) - Matières Organiques, Environnement et Société, Réseau Matière Organique (ResMO), Mar 2024, Semur-en-Auxois, France
Johnny Gasperi, Agnès Baltzer, Aurore Zalouk-Vergnoux
Brain & Breakfast #2 | Entre Terre et Mer : sur la piste des microplastiques | Que nous disent les sédiments de Loire ?. 2024
Tiago de Oliveira, Bogdan Muresan, Laurence Poirier, Johnny Gasperi
Évaluation réaliste des émissions de particules des pneus à l’aide d’un véhicule instrumenté. Journées Techniques Routes 2024, Université Gustave Eiffel, CEREMA et IDRRIM, Feb 2024, Nantes, France
Christine Gandouin, Anne-Sophie Allonier-Ferandes, Lauriane Barritaud, Audrey Courtier, Rachid Dris, et al.
Les besoins et savoir-faire en matière de quantification des plastiques. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2024, 12, pp.17-32
Lauriane Ledieu, Romain Tramoy, Phuong Ngoc-Nam, Laurent Colasse, Rachid Dris, et al.
Zone d’accumulation de déchets plastiques sur les berges de Seine : quid des microplastiques ?. Journées du GDR Polymères, Santé, Environnement, GDR Polymères, Santé, Environnement, Jun 2024, Marseille, France
Minh Trang Nguyen, Ngoc Nam Phuong, Mohamed Saad, Bruno Tassin, Thomas Gillet, et al.
Microplastic accumulation in sewer sediments and its potential entering the environment via combined sewer overflows: a study case in Paris. Environmental Science and Pollution Research, 2024
10.1007/s11356-023-31734-8
Lauriane Ledieu, Romain Tramoy, David Mabilais, Sophie Ricordel, Marie-Laure Mosini, et al.
Litter in French urban areas — Part 2: transport dynamic and fluxes in stormwater. Environmental Science and Pollution Research, 2024
10.1007/s11356-024-33774-0
Minh Trang Nguyen, Amna Abdeljaoued, Jean-Sébastien Barbier, Rachid Dris, Johnny Gasperi, et al.
Microplastic and Nanoplastic Removal Efficiency with Current and Innovative Water Technologies. Khouloud Jlassi; Mehmet A. Oturan; Ahmad Fauzi Ismail; Mohamed Mehdi Chehimi. Clean Water: Next Generation Technologies, Springer International Publishing, pp.199-215, 2024, Advances in Science, Technology & Innovation, 978-3-031-48228-1
10.1007/978-3-031-48228-1_13
Louisa Landebrit, Bogdan Muresan, Laurence Poirier, Johnny Gasperi
Imprégnation de l'estuaire ligérien par les particules d'usure des pneumatiques et de la route. Journées du GDR Polymères, Santé, Environnement, GDR Polymères, Santé, Environnement, Jun 2024, Marseille, France
Rachid Dris, Johnny Gasperi, Nadia Bouzid, Cleo Stratmann, Max Beaurepaire, et al.
Une approche systémique pour la compréhension des sources, transferts et devenirs des microplastiques dans le bassin de la Seine. Colloque PIREN-Seine, PIREN-Seine, Jun 2024, Paris, France
Sampriti Roy, Elodie Passeport, Rachid Dris, Johnny Gasperi
Anthropogenic fibers, microplastic and tire wear particles in urban stormwater: Comparison of the contamination levels and impact of contrasting stormwater management practices. Small training days: M3 Plastics: Measuring, Monitoring, Modelling of plastics in flowing waters, Apr 2024, Vienne, Austria
Lauriane Ledieu, Romain Tramoy, Ngoc Nam Phuong, Laurent Colasse, Rachid Dris, et al.
Plastic litter accumulation zones on the riverbanks of the Seine River (France): what about microplastics?. MICRO 2024: Plastic pollution from macro to nano, Sep 2024, Lanzarote Canary Islands, Spain
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Le Picard, J. Cachot, A. Bringer, Tiago de Oliveira, Johnny Gasperi, et al.. Projet PLASTyre - Détection & effets des microparticules pneumatiques dans les environnements aquatiques. Journées du GDR Polymères, Santé, Environnement, Jun 2024, Marseille, France
Johnny Gasperi, Rachid Dris, Bruno Tassin
Tour d'horizon de la contamination de nos environnements par les microplastiques. Conférence invitée. Séance thématique « Risques sanitaires liés aux microplastiques dans notre environnement », Académie Nationale de Pharmacie, Jan 2024, Paris, France
Coralie Le Picard, Jérôme Cachot, Arno Bringer, Tiago De Oliveira, Johnny Gasperi, et al.
Detection & Effects of Tyre Microparticles in Aquatic Environments. SETAC Europe 34th Annual Meeting, May 2024, Séville, Spain
Tiago De Oliveira, Bogdan Muresan, Sophie Ricordel, Laurence Lumière, Xuan-Trinh Truong, et al.
Realistic assessment of tire and road wear particle emissions and their influencing factors on different types of roads. Journal of Hazardous Materials, 2024, 465, pp.133301
10.1016/j.jhazmat.2023.133301
Johnny Gasperi
Déchets sauvages en milieu urbain et dans les écosystèmes aquatiques. 2024
Max Beaurepaire, Rachid Dris, Mathieu Goriaux, Phuong Ngoc-Nam, Sophie Ricordel, et al.
Assessment of the impact of local human activity on microplastic atmospheric deposition. SETAC Europe 34th annual meeting, SETAC, May 2024, Séville, Spain
Tiago De Oliveira, Du Phuc Tho Dang, Maxime Chaillou, Nadège Caubrière, Martin Guillon, et al.
Contamination des sédiments d’un bassin d'infiltration par les particules d'usure des pneus. Journées du GDR Polymères, Santé, Environnement, GDR Polymères, Santé, Environnement, Jun 2024, Marseille, France
Christelle Nabintu Kajoka, Julien Le Roux, Marcos Oliveira, Barbara Giroud, Emmanuelle Vulliet, et al.
Oxydation des micropolluants pharmaceutiques par l’acide performique seul et en couplage (UV-C/PFA et ozone/PFA). 15ème congrès international du GRUTTEE, Université de Bordeaux, May 2024, Bordeaux (Gironde), France
Max Beaurepaire, Tiago De Oliveira, Bruno Tassin, Johnny Gasperi, Marie-Christine Gromaire, et al.
Microplastics and tyre wear particles infiltration in the soil of a roadside biofiltration swale. SETAC Europe 34th Annual Meeting, SETAC, May 2024, Séville, Spain
Johnny Gasperi
Mieux comprendre la présence de microplastiques dans nos environnements et l’exposition de l’Homme. Conférence à l’Université Permanente, Nantes Université, Apr 2024, Nantes, France
Cleo Stratmann, Rachid Dris, Johnny Gasperi, Frans Buschman, Adriaan Markus, et al.
Monitoring microplastics in the Seine River in the Greater Paris area. Frontiers in Earth Science, 2024, 12
10.3389/feart.2024.1386547
Johnny Gasperi, Lauriane Ledieu, R
Tramoy, Phuong Ngoc-Nam, L. Colasse, et al.. Pollution plastique dans le continuum Terre-Mer : des zones d'accumulation de macrodéchets à la formation de microplastiques. Journées de la fondation pour la recherche sur la biodiversité - L'océan du futur : Des impacts aux réponses, Fondation pour la recherche sur la biodiversité, May 2024, Paris, France
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Dhivert, J. Pruvost, T. Winiarski, Johnny Gasperi, F. Delor-Jestin, et al.. Time-varying microplastic contributions of a large urban and industrial area to river sediments. Environmental Pollution, 2024, 347, pp.123702
10.1016/j.envpol.2024.123702
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Castro-Jiménez, Y. Aminot, N. Bely, C. Pollono, B.I.T. Idjaton, et al.. Organophosphate ester additives and microplastics in benthic compartments from the Loire estuary (French Atlantic coast). Marine Pollution Bulletin, 2024, 201, pp.116256
10.1016/j.marpolbul.2024.116256
Rachid Dris, Bruno Tassin, Johnny Gasperi, C
Stratmann, V. Jauzein, et al.. Investigation méthodologique des microplastiques (fibres et fragments) dans les eaux de surface à la traversée de l’agglomération parisienne en lien avec la question de la production francilienne d’eau potable. 26e édition des Journées Information Eaux, APTEN, Oct 2024, Poitiers, France
Vincent Jauzein, Johnny Gasperi, Tassin Bruno, Dris Rachid, Beaurepaire Max, et al.
10 ans de recherche sur les microplastiques menés sur le continuum réseau/usine/rivière. Webinaire - Réseau des territoires engagés dans la lutte contre les pollutions plastiques : Métrologie, AMORCE, May 2024, En ligne, France
Feride Öykü Sefiloglu, Cleo Stratmann, Marthinus Brits, Martin J.M
van Velzen, Quinn Groenewoud, et al.. Comparative Microplastic Analysis in Urban Waters Using μ-FTIR And Py-GC-MS: A Case Study in Amsterdam. Environmental Pollution, 2024, pp.124088
10.1016/j.envpol.2024.124088
Tiago De Oliveira, Maxime Chaillou, Du Phuc Tho Dang, Nadège Caubrière, Martin Guillon, et al.
Tire and road wear particles contamination in infiltration ponds sediments: occurrence, spatial variability, size distribution and correlation with metals. SETAC Europe 34th Annual Meeting, May 2024, Séville, Spain
Bogdan Muresan, Valérie Laforest, Tiago De Oliveira, Xuan-Trinh Truong, Laurence Lumiere, et al.
Émissions hors échappement du contact pneu-chaussée: dynamiques d'émission, propriétés physico-chimiques et effets cellulaires. Journées scientifiques Nantes Université, Nantes Université, Jun 2024, Nantes, France
Medina Veliu, Joeri Kaal, Asier Goñi-Urtiaga, Tiago De Oliveira, Giuseppe Picca, et al.
Application of analytical pyrolysis for the molecular fingerprinting of polymers (PE, PET, PP, PS and PVC) within natural organic matter matrices used for rooftop farming. Suitma 12th Conference on Soils of Urban, Industrial, Traffic, Mining and Military Areas, Sep 2023, Santiago de Compostela, Spain.
Johnny Gasperi, Lauriane Ledieu, Sophie Podevin
Émission radio pour le labo des savoirs : pollution macroplastiques et microplastiques dans le continium Terre-Mer. 2023
Johnny Gasperi, Romain Tramoy, Lauriane Ledieu, Phuong Ngoc-Nam, Bruno Tassin, et al.
Pollution plastique dans le continuum Terre-Mer. Conférence « Déchets plastiques et pollution des eaux : des impacts aux solutions », Union Régionale des CPIE Centre-Val de Loire, Dec 2023, Tours, France
Christelle Nabintu Kajoka, Johnny Gasperi, S
Brosillon, Emilie Caupos, Emmanuelle Mebold, et al.. Reactivity of performic acid with organic and inorganic compounds: from oxidation kinetic to reaction pathways. ACS ES&T Water, 2023, 3 (9), pp.3121-3131
10.1021/acsestwater.3c00279
Trang Thi Minh Nguyen, Rachid Dris, Phuong Ngoc-Nam, Johnny Gasperi, Melissa López Viveros, et al.
Accumulation de microplastiques dans les dépôts de réseaux d’eaux usées unitaires et leur transfert vers l'environnement via les déversoirs d’orage. Novatech 2023, Graie, Jul 2023, Lyon, France
Lauriane Ledieu, Romain Tramoy, David Mabilais, Sophie Ricordel, Marie-Laure Mosini, et al.
Transfert de macrodéchets par les eaux pluviales urbaines : taux de fuite et facteurs d'influence. Novatech 2023, Graie; OTHU; Metropole Grand Lyon, Jul 2023, Lyon, France
Jean-Marc Brignon, Océane Feuger, Cynthia Denize, Laurent Letinois, Johnny Gasperi
Développement et test d’un indicateur de la pression de pollution chimique sur le bassin de la Seine. PIREN-Seine. 2023, Dans Baratelli, F., Thiebault, T. (eds), Dynamique des contaminants à l'échelle du bassin versant de la Seine. Rapport de synthèse phase VIII, Volume 9, 2023, pp. 137-154
Johnny Gasperi, Romain Tramoy, Ngoc Nam Phuong, Laurent Colasse, Rachid Dris, et al.
Premiers résultats du projet LitterBANK – Débris plastiques sur les berges de Seine. Séminaire scientifique du GIP Seine-Aval 2023 - Evolution de l’estuaire sous forçages anthropiques et climatiques, GIP Seine-Aval, Nov 2023, Rouen, France
Fulvia Baratelli, Fabrice Alliot, Sophie Ayrault, Marc F
Benedetti, Thierry Berthe, et al.. Caractérisation de l’état de contamination de l’axe Seine. PIREN SEINE. 2023, Dans Baratelli, F., Thiebault, T. (eds), Dynamique des contaminants à l'échelle du bassin versant de la Seine, PIREN-Seine, Rapport de synthèse phase VIII, Volume 9, 2023, pp.36-136
Thibert Sylvie, Jean-Sébastien Barbier, Rachid Dris, Bruno Tassin, Johnny Gasperi, et al.
Microplastiques dans les eaux destinées à la consommation humaine – Premièrs résultats de mesures sur les installations du Syndicat des Eaux d’Ile de France. 102e Congres ASTEE, ASTEE, Jun 2023, Nice, France
Régis Gabriel, Clément Leroux, Charles Ollion, Antoine Bruge, Lauriane Ledieu, et al.
Projet ViPARE - Villes Propres, Accueillantes et Respectueuses de l’Environnement. Les rencontres européennes de l'AVPU, Association des Villes pour la Propreté Urbaine (AVPU), Nov 2023, Metz, France
Max Beaurepaire, Tiago De Oliveira, Johnny Gasperi, Marie-Christine Gromaire, Bruno Tassin, et al.
Distribution spatiale et verticale de microplastiques dans un ouvrage d'infiltration des eaux pluviales. Quatrième rencontre du GDR Polymères et Océans, GDR Polymères et Océans, Jun 2023, Rennes, France
Isabelle Métais, Hanane Perrein-Ettajani, Mohammed Mouloud, Coraline Roman, Antoine Le Guernic, et al.
Effect of an environmental microplastic mixture from the Seine River and one of the main associated plasticizers, dibutylphthalate, on the sentinel species Hediste diversicolor. Marine Environmental Research, 2023, 191, pp.106159
10.1016/j.marenvres.2023.106159
Bruno Tassin, Rachid Dris, Johnny Gasperi, Max Beaurepaire, Nadia Bouzid, et al.
Microplastiques dans l’agglomération parisienne : 10 ans de recherche. Webconférence inneauvation 2023, SIAAP - direction Innovation, Apr 2023, Colombes (Hauts-de-Seine), France
Max Beaurepaire, Rachid Dris, Johnny Gasperi, Bruno Tassin
Local urban activity, Covid lockdown, and atmospheric microplastic deposition. UNESCO-EU H2020 LimnoPlast Conference, diving into freshwater microplastic pollution – connecting water, environemental, and social sciences, Mar 2023, Paris, France
Lauriane Ledieu, Romain Tramoy, David Mabilais, Sophie Ricordel, Marie-Laure Mosini, et al.
Macrodéchets abandonnés sur les surfaces urbaines : densités, variabilité et transfert par le ruissellement. GDRPO2023 : Quatrième rencontre du GDR Polymères et Océans 2023, CNRS, Jun 2023, Rennes, France
Christelle Nabintu Kajoka, Stephan Brosillon, Johnny Gasperi, Marcos Oliveira, Vincent Rocher, et al.
Investigating the Reactivity of Performic Acid with Pharmaceutical Micropollutants: A Comprehensive Study of Oxidation Kinetics and Reaction Pathways. Gordon Research Seminar, Jul 2023, South Hadley, United States.
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O. Sefiloglu, Cleo Ninja Stratmann, Martin Brits, Lorenzo Scibetta, Martin van Velzen, et al.. Microplastics in urban freshwater : a case study in the city of Amsterdam. SETAC Europe 33rd Annual Meeting : Data-driven environmental decision-making, SETAC, Apr 2023, Dublin (IE), Ireland
Johnny Gasperi, Romain Tramoy, Lauriane Ledieu, Rachid Dris, Laurent Colasse, et al.
Accumulation des déchets sauvages dans les écosystèmes aquatiques : état des lieux et enjeux. 7èmes Rencontres Nationales des Collecteurs de Déchets Sauvages 2023, Réseau déchets sauvages, Nov 2023, Vannes, France
Tiago De Oliveira, Bogdan Merusan-Paslaru, Sophie Ricordel, Laurence Lumière, Laurence Poirier, et al.
Realistic evaluation of tire wear particle emissions and their driving factors on different road types. GDRPO2023 : Quatrième rencontre du GDR Polymères et Océans 2023, Jun 2023, Rennes, France
Lauriane Ledieu, Ngoc-Nam Phuong, Bernard Flahaut, Pauline Radigois, Julya Papin, et al.
May a Former Municipal Landfill Contaminate Groundwater in Microplastics? First Investigations from the “Prairie de Mauves Site” (Nantes, France). Microplastics, 2023, 2 (1), pp.93-106
10.3390/microplastics2010007
Johnny Gasperi, Bruno Tassin, Rachid Dris
Regards croisés - La pollution des eaux par les microplastiques : quantification, impacts et solutions. Webinaire TEAWEB - Société française de Génie des Procédés, Groupe thématique Traitement de l’Eau et de l’Air, Mar 2023, Paris, France
Cleo Ninja Stratmann, Rachid Dris, Johnny Gasperi, Frans Buschman, Arjen Markus, et al.
Microplastics > 25 µm in the Seine river. Conference UNESCO-EU H2020 LimnoPlast Conference, diving into freshwater microplastic pollution – connecting water, environemental and social sciences, Mar 2023, Paris, France
Camille Croiset, Elie Dhivert, Phuong Ngoc-Nam, Cécile Grosbois, Aurore Zalouk-Vergnoux, et al.
Distribution spatiale des microplastiques dans les dépôts sédimentaires sur berges et bancs de sable de la Loire (France). 28e édition de la Réunion des Sciences de la Terre, Société Géologique de France, Oct 2023, Rennes, France
Romain Tramoy, Lauriane Ledieu, Rachid Dris, Johnny Gasperi, Bruno Tassin
Macroplastiques issus des eaux urbaines : mesures et enjeux de gestion. Conférence "Déchets plastiques et pollution des eaux : des impacts aux solutions", Union Régionale des CPIE Centre-Val de Loire, Dec 2023, Tours, France
Medina Veliu, Joeri Kaal, Asier Goñi-Urtiaga, Tiago De Oliveira, Giuseppe Picca, et al.
Application of analytical pyrolysis for the molecular fingerprinting of polymers (PE, PET, PP, PS and PVC) within natural organic matter matrices used for rooftop farming. Agrifoodplast, Sep 2023, Piacenza, Italy. , 2023
Marziye Molazadeh, Guilherme Calabro-Souza, Fan Liu, Rachid Dris, Cédric Chaumont, et al.
Visualization of Buoyant MP motion in response to different flow velocities and bed types. EGU General Assembly 2023, Apr 2023, Vienne, Austria
10.5194/egusphere-egu23-12960
Romain Tramoy, Johnny Gasperi, Rachid Dris, Bruno Tassin
The Endless World: Plastic debris in the Seine estuary as a case study. Conference UNESCO-EU H2020 LimnoPlast Conference, diving into freshwater microplastic pollution – connecting water, environemental, and social sciences., Mar 2023, Paris, France
Rachid Dris, Max Beaurepaire, Nadia Bouzid, Cleo Ninja Stratmann, Minh Trang Nguyen, et al.
Microplastiques dans les rivières : Quelles méthodes d’analyse après une décennie de recherche ?. GDRPO2023 : Quatrième rencontre du GDR Polymères et Océans 2023, Jun 2023, Rennes, France
Alice Vidal, Isabelle Métais, Oihana Latchere, Antoine Le Guernic, Johnny Gasperi, et al.
Toxicity assessment of microplastics within the Loire River in the clam Corbicula fluminea exposed to environmentally relevant exposure conditions. Ecotoxicology, 2023
10.1007/s10646-023-02702-2
Lauriane Ledieu, Romain Tramoy, David Mabilais, Sophie Ricordel, Bruno Tassin, et al.
Dynamique de transfert des macroplastiques en estuaire de Loire : trajectoires et facteurs d'influence. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2023, 3, pp.53-62
10.36904/202303053
Christelle Nabintu Kajoka, S
Brosillon, Johnny Gasperi, Marcos Oliveira, Vincent Rocher, et al.. Organic Micropollutants Removal through Performic Acid-UV Photolysis: kinetics and wastewater matrix influence. IOA World Congress & Exhibition, Jul 2023, Milan, Italy. 4p
Zoé Iannuzzi, Brice Mourier, Rémy Bayard, Gislain Lipeme Kouyi, Philippe Polomé, et al.
Identification des sources anthropiques à l’origine des microplastiques et des particules de pneu en milieu urbain. 4ième rencontre du GDR Polymères et Océans, Jun 2023, Rennes, France
Lauriane Ledieu, Tiago De Oliveira, Phuong Ngoc-Nam, Rachid Dris, Bruno Tassin, et al.
Diagnostic de la contamination en microplastiques dans un ruisseau urbain. GDRPO2023 : Quatrième rencontre du GDR Polymères et Océans 2023, CNRS, Jun 2023, Rennes, France
Rachid Dris, Max Beaurepaire, Nadia Bouzid, Cleo Ninja Stratmann, Trang Thi Minh Nguyen, et al.
Sampling and analyzing microplastics in rivers: What methods are being used after a decade of research?. Eddy Y Zeng. Microplastic Contamination in Aquatic Environments - An Emerging Matter of Environmental Urgency, Elsevier, pp.65-91, 2023, 978-0-443-15332-7
10.1016/b978-0-443-15332-7.00013-2
Thi Thuy Duong, Duong Nguyen-Thuy, Ngoc Nam Phuong, Ha My Ngo, Thi Oanh Doan, et al.
Microplastics in sediments from urban and suburban rivers: Influence of sediment properties. Science of the Total Environment, 2023, 904, pp.166330
10.1016/j.scitotenv.2023.166330
Johnny Gasperi
Pollution microplastique dans le continuum terre-mer : des activités anthropiques génératrices de pollution plastique aux océans. Le Cahier des Ponts, 2023, 7, pp.17-19
Camille Croiset, Elie Dhivert, Nam Ngoc Phuong, Cécile Grobois, Aurore Zalouk-Vergnoux, et al.
70 années d’utilisation massive des plastiques, quelles contaminations archivées dans les sédiments de la Loire ?. GDRPO2023 : Quatrième rencontre du GDR Polymères et Océans 2023, Jun 2023, Rennes, France
Camille Croiset, Elie Dhivert, Ngoc Nam Phuong, Cécile Grosbois, Aurore Zalouk-Vergnoux, et al.
Spatial Distribution Of Microplastics In Overbank Deposits And Sandbar Sediments Of The River Loire (France). SETAC North America 44th Annual Meeting, Nov 2023, Louisville (Kentucky), United States.
Kelsey Smyth, Jennifer Drake, Tim van Seters, Johnny Gasperi, Bruno Tassin, et al.
Bioretention cells remove microplastics in the 25 – 106 micron size fraction. Internationnal Low Impact Development Conference 2023, Aug 2023, Oklahoma City, United States
Max Beaurepaire, Rachid Dris, Johnny Gasperi, Bruno Tassin
Microplastics in total atmospheric fallout: from lockdown to business-as-usual. SETAC Dublin 2023, Apr 2023, Dublin, Ireland
Minh Trang Nguyen, Gabriel Olthof, Vaibhav Budhiraja, Nam Ngoc Phuong, Rachid Dris, et al.
Occurrence and fate of microplastics in Parisian combined sewer network. Conference UNESCO-EU H2020 LimnoPlast Conference, diving into freshwater microplastic pollution – connecting water, environemental and social sciences, Mar 2023, Paris, France
Guilherme Calabro Souza, Marziye Molazadeh, Bruno Tassin, Alexis Simons, Cédric Chaumont, et al.
Turbulence, biofilm et dynamique des microplastiques. GDRPO2023 : Quatrième rencontre du GDR Polymères et Océans 2023, Jun 2023, Rennes, France
Minh Trang Nguyen, Rachid Dris, N
Phuong, Johnny Gasperi, Melissa López Viveros, et al.. Microplastic accumulation in sewer systems and their pathways to the environment along with combined sewer overflows. 11e Conférence internationale Novatech - Urban Water, Graie; OTHU; Metropole Grand Lyon, Jul 2023, Lyon, France
Romain Tramoy, Bruno Tassin, Lauriane Ledieu, Rachid Dris, Johnny Gasperi
Macroplastiques issus des eaux urbaines : mesures et enjeux de gestion. GDRPO2023 : Quatrième rencontre du GDR Polymères et Océans 2023, Jun 2023, Rennes, France
Nadia Bouzid, Remi Bizeul, Anthony Foucher, Sophie Ayrault, Olivier Evrard, et al.
Microplastics in sediment deposited along the Seine River after a major flood event (February 2021). EGU General Assembly 2023, Apr 2023, Vienne (AUT), Austria
10.5194/egusphere-egu23-12562
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O. Sefiloglu, Cleo Ninja Stratmann, M. Brits, M. van Velzen, Q. Groenewoud, et al.. Microplastics in urban freshwater: a case study in the city of Amsterdam. 41st International Conference on Environmental & Food Monitoring, ISEAC-41, International Association of Environmental Analytical Chemistry (IAEAC)., Nov 2023, Amsterdam, Netherlands
Tiago de Oliveira, Bogdan Muresan, Sophie Ricordel, Laurence Lumiere, Laurence Poirier, et al.
Realistic evaluation of tire wear particle emissions and their driving factors on different road types. Goldschmidt, Jul 2023, Lyon, France
Johnny Gasperi
Conférence invitée - Sedi-PLAST : Microplastiques dans les sédiments et dans les archives sédimentaires. Congrès Planète Plastiques, Muséum National d'Histoire Naturelle, Sep 2023, Paris, France
Valentin Chapon, Jean-Marc Brignon, Johnny Gasperi
Non-persistent chemicals in polymer and non-polymer products can cause persistent environmental contamination: evidence with DEHP in Europe. Environmental Science and Pollution Research, 2023, 30, pp.44952-44962
10.1007/s11356-023-25405-x
Kelsey Smyth, S Tan, Tim van Seters, Johnny Gasperi, Bruno Tassin, et al.
Improving stormwater quality for microplastic (25 – 106 µm) using a bioretention cell. Stormwater Conference & Expo 2023, May 2023, Auckland, New Zealand
Lauriane Ledieu, Romain Tramoy, David Mabilais, Sophie Ricordel, Marie-Laure Mosini, et al.
Projet stritter - Un exemple de projet action sur les macrodéchets sur les surfaces urbaines et dans les eaux de ruissellement.. Les rencontres européennes de l'AVPU, Association des Villes pour la Propreté Urbaine (AVPU), Nov 2023, Metz (France), France
Thomas Thiebault, Anthony Foucher, Jean-Sébastien Barbier, Pierre Labadie, Johnny Gasperi, et al.
Archives sédimentaires : reconstruire les trajectoires temporelles des contaminants. PIREN SEINE. 2023, Dans Baratelli, F., Thiebault, T. (eds), Dynamique des contaminants à l'échelle du bassin versant de la Seine, PIREN-Seine, Rapport de synthèse phase VIII, Volume 9, 2023, pp. 4-34
Max Beaurepaire, Rachid Dris, Johnny Gasperi, Marie Christine Gromaire, Romain Tramoy, et al.
Spatial and vertical distribution of microplastic within the soil of a sustainable urban drainage system. SETAC Dublin 2023, Apr 2023, Dublin, Ireland.
Christelle Nabintu Kajoka, Stephan Brosillon, Johnny Gasperi, Yacine Khadija Diop, Marcos Oliveira, et al.
Unveiling the Potential of Performic Acid and UV Combination for Enhanced Elimination of pharmaceutical Micropollutants. Gordon Research Conference, Jul 2023, South Hadley, United States.
Elie Dhivert, J.M
Andanson, Christelle Anquetil, Haroutioun Askanian, Sophie Ayrault, et al.. MP_Database.v1.1 : première base de données permettant l’intercomparaison des contaminations en microplastiques dans les dépôts sédimentaires à différentes échelles spatiales et temporelles. 4ième rencontre du GDR Polymères et Océans, Jun 2023, Rennes, France.
Alice Vidal, Ngoc-Nam Phuong, Isabelle Métais, Johnny Gasperi, Amélie Châtel
Assessment of microplastic contamination in the Loire River (France) throughout analysis of different biotic and abiotic freshwater matrices. Environmental Pollution, 2023, 334, pp.122167
10.1016/j.envpol.2023.122167
Denis Blot, Romain Tramoy, Johnny Gasperi, Bruno Tassin
Le continent oublié. Lumières et zones d'ombre des recherches sur la dissémination des plastiques. Natures Sciences Sociétés, 2022, 10 p
10.1051/nss/2022002
Max Beaurepaire, Rachid Dris, Bruno Tassin, Johnny Gasperi
Microplastics in total atmospheric fallout: Monitoring in suburban and agricultural sites. SETAC Europe 32nd Annual Meeting 2022, May 2022, Copenhague, Denmark
Johnny Gasperi, Rachid Dris, Bruno Tassin
Microplastiques dans le continuum Terre-Mer. Conférence invitée. 3èmes rencontres GDR Polymères & Océans, Jun 2022, Brest, France
Nadia Bouzid, Christelle Anquetil, Rachid Dris, Johnny Gasperi, Bruno Tassin, et al.
Quantification of Microplastics by Pyr-GC-MS in Sediments: Challenges and Implications. SETAC Europe 32nd Annual Meeting, May 2022, Copenhague, Denmark
Cleo Ninja Stratmann, Rachid Dris, Johnny Gasperi, Sam Azimi, Vincent Rocher, et al.
Investigating Microplastic > 25 µm in the Seine River. SETAC Europe 32nd annual meeting, May 2022, Copenhague, Denmark
Lauriane Ledieu, Romain Tramoy, David Mabilais, Sophie Ricordel, Léopold Verdier, et al.
Dynamique de transfert des macrodéchets plastiques en estuaire de Loire : trajectoires et facteurs d'influence. 4ème Conférence internationale I.S.Rivers, Jul 2022, LYON, France. 3p
Ngoc Nam Phuong, Elie Dhivert, Brice Mourier, Cécile Grosbois, Johnny Gasperi
Evolution amont-aval de la contamination en microplastiques dans un barrage : importance de la granulométrie fine dans la rétention des microplastiques. 3ième journée du GDR Polymères et Océans, Jun 2022, Brest, France
Lauriane Ledieu, Romain Tramoy, Sophie Ricordel, D
Astrie, Bruno Tassin, et al.. Amount, composition and sources of macrolitter from a highly frequented roadway. 3ème rencontre du GDR Polymères et Océans, Jun 2022, BREST, France. 3ème rencontre du GDR Polymères et Océans, 2022
Jean-Sébastien Barbier, Rachid Dris, Johnny Gasperi, Caroline Lecarpentier, Karine Delabre, et al.
Etat de l’art sur la présence de microplastiques dans les eaux destinées à la consommation humaine. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2022, 6, pp.93-123
10.36904/tsm/202206093
Johnny Gasperi, Lauriane Ledieu, Ngoc-Nam Phuong, Romain Tramoy, Rachid Dris, et al.
Projet Plasti-nium (2021-2025) : Débris plastiques dans le continuum Terre-Mer. 15e Journée scientifique de l'OSUNA, Jun 2022, NANTES, France. 1 p
Nadia Bouzid, Christelle Anquetil, Rachid Dris, Johnny Gasperi, Bruno Tassin, et al.
Quantification of Microplastics by Pyrolysis Coupled with Gas Chromatography and Mass Spectrometry in Sediments: Challenges and Implications. Microplastics, 2022, 1 (2), pp.229-239
10.3390/microplastics1020016
Véronique Coma, Franck Cleymand, Isabelle Deportes, Frédéric Feder, Johnny Gasperi, et al.
Impacts sanitaires et environnementaux de matières plastiques biosourcées, biodégradables et compostables. [Rapport de recherche] Saisine n° 2021-SA-0202, Anses; IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux. 2022, 10 + 71 p
Nadia Bouzid, Rémi Bizeul, Anthony Foucher, Sophie Ayrault, O
Evrard, et al.. Microplastiques dans les laisses de crue de la Seine. 3ième rencontre du GDR Polymères & Océans, Jun 2022, Brest, France
Romain Tramoy, Lauriane Ledieu, Sophie Ricordel, Daniel Astrié, Bruno Tassin, et al.
Macrolitter dataset from a highly frequented roadway in Nantes, France. Data in Brief, 2022
10.1016/j.dib.2022.108237
Christelle Nabintu Kajoka, Julien Le Roux, Stephan Brosillon, Marcos Oliveira, Vincent Rocher, et al.
Réactivité de composés organiques et inorganiques avec l'acide performique. 14ème congrès international du GRUTTEE, Mar 2022, Toulouse, France
L
Ledieu, R. Tramoy, S. Ricordel, D. Astrie, B. Tassin, et al.. Amount, composition and sources of macrolitter from a highly frequented roadway. Environmental Pollution, 2022, pp.119145
10.1016/j.envpol.2022.119145
Johnny Gasperi, Julien Le Roux, Steven Deshayes, Sophie Ayrault, Louise Bordier, et al.
Correction: Gasperi et al. Micropollutants in Urban Runoff from Traffic Areas: Target and Non-Target Screening on Four Contrasted Sites. Water 2022, 14, 394. Water, 2022, 14 (14), pp.2215
10.3390/w14142215
Cleo Ninja Stratmann, Rachid Dris, Johnny Gasperi, Sabrina Guérin-Rechdaoui, Anthony Marconi, et al.
Etude des microplastiques > 25 µm sur le bassin versant de la Seine. Rapport 2022 du programme PIREN-Seine. 2022
Max Beaurepaire, Rachid Dris, Johnny Gasperi, Bruno Tassin
The soils of a high-traffic roadside ditch as a receptacle of macro-litter and microplastics. Micro2022 : Plastic Pollution from MACRO, Nov 2022, Online, France
Lauriane Ledieu, Ngoc-Nam Phuong, Bernard Flahaut, Pauline Radigois, Julya Papin, et al.
Impact of a closed municipal solid waste landfill to microplastic groundwater pollution. MICRO 2022, Plastic pollution from macro to nano, Nov 2022, Distanciel, France. 1p
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Ledieu, R. Tramoy, D. Mabilais, S. Ricordel, L. Verdier, et al.. Macroplastic transfer dynamics in the Loire estuary: Similarities and specificities with macrotidal estuaries. Marine Pollution Bulletin, 2022, 182, pp.114019
10.1016/j.marpolbul.2022.114019
Max Beaurepaire, Rachid Dris, Bruno Tassin, Johnny Gasperi
Microplastics monitoring in total atmospheric fallout of a suburban and an agricultural site. Troisième rencontre du GDR Polymères et Océans 2022, Jun 2022, Brest, France
Alice Vidal, Isabelle Métais, Oihana Latchere, Didier Georges, Hanane Perrein-Ettajani, et al.
Microplastics in freshwater biotic and abiotic matrices sampled in the Loire River (France) and their ecotoxicology effects on Corbicula fluminea. Micro2022 - Plastic pollution from macro to nanoplastic, Nov 2022, On line, Spain
Maryem Mehboob, Rachid Dris, Johnny Gasperi, Bruno Tassin, Riffat Naseem Malik
Microplastic pollution in Indus Water System of Pakistan. 32nd annual meeting SETAC Europe, May 2022, Copenhague, Netherlands
Johnny Gasperi, Camille Croiset, Phuong Ngoc Nam, Elie Dhivert, Cécile Grosbois, et al.
Microplastiques et Loire : Premières connaissances sur le bassin ligérien. Séminaire Transfert des micropolluants dans les eaux de surface Bassin versant de la Loire, Oct 2022, Distanciel, France
Kelsey Smyth, Jennifer Drake, Tim van Seters, Johnny Gasperi, Rachid Dris, et al.
Bioretention cells remove increasingly small microplastics from stormwater. DesignLIFES, Design of Living Infrastructure for Ecosystem Services, Aug 2022, Toronto, Canada
Johnny Gasperi, Rachid Dris, Bruno Tassin
Tour d'horizon de la contamination en débris plastiques des compartiments environnementaux. Congrès 2022 de la Société de Toxicologie Cellulaire et Moléculaire, Oct 2022, Dunkerque, France
Phuong Ngoc Nam, Elie Dhivert, Brice Mourier, Cécile Grosbois, Johnny Gasperi
Évolution longitudinale de la contamination en microplastiques dans les sédiments de la retenue de Villerest (Loire, France). Colloque annuel de la Zone atelier Loire. Enjeux environnementaux et sociétaux des hydrosystèmes : 20 ans de recherche sur le bv Loire, Oct 2022, Angers, France
Rachid Dris, Johnny Gasperi, Max Beaurepaire, Nadia Bouzid, Minh Trang Nguyen, et al.
Microplastiques en milieu urbain : métrologie et estimations de flux. 25ièmes Journées Information Eau, Oct 2022, Poitiers, France
Minh Trang Nguyen, Nam Ngoc Phuong, Rachid Dris, Johnny Gasperi, Thomas Gillet, et al.
Microplastics in sewer sediments of the Parisian combined sewer network. Micro2022 - Plastic pollution from macro to nanoplastic, Nov 2022, On line, Spain.
Jean Pruvost, Elie Dhivert, Brice Mourier, Bruno Tassin, Thierry Winiarski, et al.
Archivage et variabilité spatiale des microplastiques dans les sédiments fluviatiles. 4ième conférence internationale ISI River, Jul 2022, Lyon, France
Max Beaurepaire, Rachid Dris, Bruno Tassin, Johnny Gasperi
Comparison of total atmospheric microplastic deposition on a peri-urban and an agricultural site in the Paris region. EGU General Assembly 2022, May 2022, Vienna, Austria
10.5194/egusphere-egu22-8065
Cleo Ninja Stratmann, Max Beaurepaire, Rachid Dris, Johnny Gasperi, Arnaud Blanchouin, et al.
Microplastiques dans le bassin de l’Orgeval. Journée scientifique de l'Orgeval, Jan 2022, En distanciel, France
Lauriane Ledieu, Romain Tramoy, David Mabilais, Sophie Ricordel, Léopold Verdier, et al.
Dynamique de transfert des macrodéchets plastiques dans les estuaires macrotidaux : similarités et spécificités de l'estuaire de la Loire. 3ème rencontre du GDR Polymères et Océans, Jun 2022, BREST, France. 1p
Christelle Nabintu Kajoka, Johnny Gasperi, Stephan Brosillon, Marcos Oliveira, Vincent Rocher, et al.
Reactivity of performic acid with organic micropollutants and model compounds. 12th Micropol & Ecohazard Conference 2022, Jun 2022, Santiago de Compostela, Spain
Javier Castro-Jimenez, Y Aminot, C Pollono, B Idjaton, L Bizzozero, et al.
Environmental occurrence of organophosphate esters and micro-plastics in sediments and benthic organisms from the Loire Estuary (France). SETAC Europe 32nd Annual Meeting, May 2022, COPENHAGUE, Denmark. SETAC Europe 32nd Annual Meeting, 1p., 2022
Max Beaurepaire, Rachid Dris, Johnny Gasperi, Marie-Christine Gromaire, Romain Tramoy, et al.
Caractérisation de macrodéchets et microplastiques au sein d’une noue filtrante en bord de route. Journées Doctorales en Hydrologie Urbaine (JDHU) 2022, Oct 2022, Lyon, France
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Dhivert, Ngoc-Nam Phuong, Brice Mourier, C. Grosbois, Johnny Gasperi. Microplastic trapping in dam reservoirs driven by complex hydrosedimentary processes (Villerest Reservoir, Loire River, France). Water Research, 2022, 225, pp.119187
10.1016/j.watres.2022.119187
Romain Tramoy, Bruno Tassin, Lauriane Ledieu, Rachid Dris, Camille Noûs, et al.
Flux de macroplastiques issus des eaux urbaines : au plus près des sources. Symposium métrologie de la pollution de plastique dans le continuum terre-mer, Dec 2022, Lyon, France
Jean-Sebastien Barbier, Rachid Dris, Caroline Lecarpentier, Vivien Raymond, Karine Delabre, et al.
Présence de microplastiques dans les filières de traitement conventionnelles et de nanofiltration de trois usines de production d'eau potable. 3ième journée du GDR Polymères et Océans 2022, Jun 2022, Brest, France
Christelle Nabintu Kajoka, Maolida Nihemaiti, Nina Huynh, Johnny Gasperi, S
Brosillon, et al.. Désinfection des eaux usées traitées par l’acide performique et sa réactivité avec les composés organiques. Journées Information Eaux (JIE), Oct 2022, Poitiers, France
Romain Tramoy, Bruno Tassin, Johnny Gasperi
Pollution en macroplastiques dans l’environnement : Définition d’indicateurs de la zone urbaine au milieu récepteur. 3èmes rencontres GDR Polymères & Océans, Jun 2022, Brest, France
Johnny Gasperi, Julien Le Roux, Steven Deshayes, Sophie Ayrault, Louise Bordier, et al.
Micropollutants in Urban Runoff from Traffic Areas: Target and Non-Target Screening on Four Contrasted Sites. Water, 2022, 14 (3), 22 p
10.3390/w14030394
Camille Croiset, Elie Dhivert, Ngoc-Nam Phuong, Cécile Grosbois, Aurore Zalouk-Vergnoux, et al.
Spatial distribution of microplastics in overbank deposits and sandbar sediments of the river Loire (France). MICRO 2022, Plastic pollution from macro to nano, Nov 2022, En distanciel, France. 1p
Sophie Ricordel, Lauriane Ledieu, Daniel Astrié, Romain Tramoy, Bruno Tassin, et al.
Macrodéchets et déchets plastiques issus du trafic routier. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2022, 6, pp.53-70
10.36904/tsm/202206053
Camille Croiset, Aurore Zalouk-Vergnoux, Agnès Baltzer, Johnny Gasperi
Etude des microplastiques dans un bassin versant sous pression maraîchère. 3ième rencontre du GDR Polymères & Océans, Jun 2022, BREST, France. 1 p
Romain Tramoy, E
Blin, I. Poitou, C. Noûs, Bruno Tassin, et al.. Riverine litter in a small urban river in Marseille, France: Plastic load and management challenges. Waste Management, 2022, 140, pp.154-163
10.1016/j.wasman.2022.01.015
Romain Tramoy, Johnny Gasperi, Bruno Tassin
Plastoc : Indicateurs de la pollution en macrodéchets dans l'environnement et estimation des flux issus des eaux urbaines. Laboratoire Eau environnement et systèmes urbains (LEESU), 61 avenue du Général de Gaulle, 94010 Créteil cedex. 2022
Josette Garnier, Michel Meybeck, Sophie Ayrault, Gilles Billen, Hélène Blanchoud, et al.
Continental Atlantic Rivers: the Seine Basin.. 2nd edition. Rivers of Europe, Elsevier, 291-330 (chapter 9), 2022, 978-0-08-102612-0
10.1016/B978-0-08-102612-0.00009-2
Jean-Sebastien Barbier, Rachid Dris, Caroline Lecarpentier, Vivien Raymond, Karine Delabre, et al.
Microplastic occurrence after conventional and nanofiltration processes at drinking water treatment plants: Preliminary results. Frontiers in Water, 2022, 4
10.3389/frwa.2022.886703
Camille Croiset, Aurore Zalouk-Vergnoux, Agnés Baltzer, Johnny Gasperi
Study of microplastics in a catchment under market gardening pressure. Microplastics Workshop, Jun 2022, ATHENES, France. 1 p
Romain Tramoy, Eric Blin, Isabelle Poitou, Bruno Tassin, Johnny Gasperi
Riverine Litter in a small Urban River in Marseille, France: Plastic Load and Management Challenges. 4ème Conférence internationale I.S. Rivers, Lyon (France), Jul 2022, Lyon, France
Océane Feuger, Jean-Marc Brignon, Johnny Gasperi
Indicateur de la pression de pollution chimique sur le bassin de la Seine : rapport d'avancement d'un test de faisabilité. Rapport PIREN-Seine. 2022
J Castro-Jiménez, Y Aminot, C Pollono, B Idjaton, L Bizzozero, et al.
Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France). 3ième rencontre du GDR Polymères et Océans 2022, Jun 2022, Brest, France
Johnny Gasperi, Romain Tramoy, Rachid Dris, Denis Blot, Bruno Tassin
En amont des océans, déchets plastiques dans les cours d'eaux : flux, stocks, dynamique, quelques réponses et de nombreuses questions. Journées scientifiques de l'Université de Nantes, Jun 2021, NANTES, France. 1 p
Jean-Sébastien Barbier, Rachid Dris, Sylvie Thibert, Caroline Lecarpentier, Vivien Raymond, et al.
Premiers résultats sur la pollution microplastique le long de filières de potabilisation : de la ressource à l'eau potable distribuée en Île-de-France. Deuxième rencontre du GDR Polymères et Océans, Feb 2021, En distanciel, France
Max Beaurepaire, Rachid Dris, Johnny Gasperi, Bruno Tassin
Microplastics in the atmospheric compartment: a comprehensive review on methods, results on their occurrence and determining factors. Current Opinion in Food Science, 2021, 41, 16 p
10.1016/j.cofs.2021.04.010
Guillaume Duflos, Alexandra ter Halle, Christelle Anquetil, Laurence Asia, Nadia Bouzid, et al.
Avancement sur la mise au point d’une méthode de dosage des microplastiques par pyrolyse couplée à la spectrométrie de masse. GDR Polymères et Océans 2020, GDR Polymères et Océans, Feb 2021, En ligne, France
Johnny Gasperi, Rachid Dris, Robin Treilles, Max Beaurepaire, Sam Azimi, et al.
Sources et flux de microplastiques en milieux urbains. Journée technique nano/microplastiques dans l'eau, France Water Team, Jan 2021, Toulouse, France
Nadia Bouzid, Christelle Anquetil, Sylvie Derenne, Rachid Dris, Johnny Gasperi, et al.
Quantification des microplastiques par pyrolyse couplée à la chromatographie gazeuse et à la spectrométrie de masse : mise en évidence des effets matrice et implications pour l’étude de sédiments fluviatiles. 2ème rencontres du GDR Polymères et Océans, Feb 2021, Paris, France
Johnny Gasperi, Rachid Dris, Bruno Tassin
Apports des microplastiques par voie atmosphérique et contamination des milieux aquatiques. Atelier de prospective du groupe français des polymères - Nano/Microparticules de polymères - Etat des lieux, Dec 2021, PARIS, France. 1 p
Johnny Gasperi, Jérôme Cachot
Projet Plastic-Seine : Flux et impacts des microplastiques dans l’estuaire de la Seine. [Rapport de recherche] Programme Seine-Aval 6. 2021
Cédric Fisson, J Cachot, Johnny Gasperi, M.P
Halm-Lemeille, Bruno Tassin, et al.. La pollution plastique en estuaire de Seine : imprégnation environnementale, dynamique et impact sur le vivant. GIP Seine-Aval, 52 p, 2021, Fascicule Seine-Aval
Ronan Guillossou, Julien Le Roux, Angélique Goffin, Romain Mailler, Gilles Varrault, et al.
Fluorescence excitation/emission matrices as a tool to monitor the removal of organic micropollutants from wastewater effluents by adsorption onto activated carbon. Water Research, 2021, 190, pp.116749
10.1016/j.watres.2020.116749
Romain Tramoy, Johnny Gasperi, Bruno Tassin
Les Macroplastiques dans le bassin de la Seine. Rencontre régionale : Vers une Île-de-France zéro plastiques, Nov 2021, Paris, France
Robin Treilles, Johnny Gasperi, Romain Tramoy, Rachid Dris, Anaïs Gallard, et al.
Microplastic and microfiber fluxes in the Seine River: Flood events versus dry periods. Science of the Total Environment, 2021, pp.150123
10.1016/j.scitotenv.2021.150123
Johnny Gasperi, Rachid Dris, Soline Alligant, Romain Tramoy, Marie-Pierre Halm-Lemeille, et al.
Microplastiques en estuaire de Seine : synthèse des connaissances du projet Plastic-Seine sur les matrices abiotiques (2017-2020). Journée du GDR Polymères et Océans, Feb 2021, En distanciel, France
Romain Tramoy, Johnny Gasperi, Bruno Tassin
Endless journey of plastic debris in Rivers. One Integrated Marine Debris Observing System for a Clean Ocean - UN decade of The Ocean, Nov 2021, Visio, France
Ahmed A
Elsayed, Mazen Erfan, Yasser M. Sabry, Rachid Dris, Johnny Gasperi, et al.. A microfluidic chip enables fast analysis of water microplastics by optical spectroscopy. Scientific Reports, 2021, 11, pp.10533
10.1038/s41598-021-89960-4
R
Tramoy, Johnny Gasperi, L. Colasse, C. Noûs, B. Tassin. Transfer dynamics of macroplastics in estuaries – New insights from the Seine estuary: Part 3. What fate for macroplastics?. Marine Pollution Bulletin, 2021, 169, pp.112513
10.1016/j.marpolbul.2021.112513
Nadia Bouzid, Rachid Dris, Christelle Anquetil, Bruno Tassin, Johnny Gasperi, et al.
Développement d'une méthode de quantification des microplastiques par Pyr-GC-MS pour l'analyse de sédiments de la Seine. [Rapport de recherche] IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux. 2021, 14 p
Max Beaurepaire, Johnny Gasperi, Rachid Dris, Bruno Tassin
Microplastiques dans l'air : état de l'art, méthodologies et enjeux. Deuxième rencontre GDR Polymères & Océans, Feb 2021, Pau (en ligne), France
Robin Treilles, Johnny Gasperi, Anaïs Gallard, Mohamed Saad, Rachid Dris, et al.
Microplastics and microfibers in urban runoff from a suburban catchment of Greater Paris. Environmental Pollution, 2021, 25 p
10.1016/j.envpol.2021.117352
Robin Treilles, Johnny Gasperi, Anaïs Gallard, Saad Mohamed, Rachid Dris, et al.
Etude des microplastiques dans les eaux de ruissellement d’un bassin péri-urbain de l’agglomération parisienne. GDR 2021, Feb 2021, Paris, France
Pierre Labadie, Soline Alligant, Thierry Berthe, Hélène Budzinski, Aurélie Bigot-Clivot, et al.
Contaminants of emerging concern in the Seine river basin: Overview of recent research. Nicolas Flipo; Pierre Labadie; Laurence Lestel. The Seine River Basin, 90, Springer, pp.355-380, 2021, The Handbook of Environmental Chemistry, 978-3-030-54259-7
10.1007/698_2019_381
Romain Tramoy, Johnny Gasperi, Laurent Colasse, Marie Silvestre, Philippe Dubois, et al.
Endless journey of macroplastics in rivers: From hours to decades tracking in the Seine River. EGU General Assembly 2021, Apr 2021, ONLINE, France. 1 p
10.5194/egusphere-egu21-6027
Jean-Marc Brignon, Johnny Gasperi
Indicateur de la pression de pollution chimique sur le bassin de la Seine. [Rapport de recherche] IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux. 2021, 14 p
Max Beaurepaire, Rachid Dris, Johnny Gasperi, Bruno Tassin
Microplastics in total atmospheric fallout : review and monitoring in the Paris region. Workshop on microplastics in the atmosphere, Nov 2021, Nice, France
Rachid Dris, Johnny Gasperi, Robin Treilles, Cleo Ninja Stratmann, Nadia Bouzid, et al.
Prélever et analyser les microplastiques en Seine : réflexions, évolutions méthodologiques et implications. Colloque PIREN-Seine, Oct 2021, Paris, France
Romain Tramoy, Johnny Gasperi, Eric Blin, Isabelle Poitou, Bruno Tassin
Use of environmental management data for mass flow estimations of plastic debris in rivers: The Seine River and The Huveaune River, France.. EGU General Assembly 2021, Apr 2021, ONLINE, France. 2 p
10.5194/egusphere-egu21-6088
Dominique Patureau, Romain Mailler, Nadine Delgenes, Alice Danel, Emmanuelle Vulliet, et al.
Fate of emerging and priority micropollutants during the sewage sludge treatment - Part 2: Mass balances of organic contaminants on sludge treatments are challenging. Waste Management, 2021, 125, pp.122-131
10.1016/j.wasman.2021.02.034
Robin Treilles, Johnny Gasperi, Saad Mohamed, Romain Tramoy, Jérôme Breton, et al.
Abundance, composition and fluxes of plastic debris and other macrolitter in urban runoff in a suburban catchment of Greater Paris. Water Research, 2021, 192, pp.116847
10.1016/j.watres.2021.116847
Romain Tramoy, Johnny Gasperi, Rachid Dris, Bruno Tassin
Dynamique des déchets plastiques dans les hydrosystèmes et appui aux politiques publiques : analogies entre les estuaires de Seine et de Loire. 5e colloque biennal des Zones Ateliers-CNRS : 2000-2020, 20 ans de recherche du Réseau des Zones Ateliers, Nov 2020, Blois, France
Ronan Guillossou, Julien Le Roux, Stephan Brosillon, Romain Mailler, Emmanuelle Vulliet, et al.
Benefits of ozonation before activated carbon adsorption for the removal of organic micropollutants from wastewater effluents. Chemosphere, 2020, 245, pp.125530
10.1016/j.chemosphere.2019.125530
Romain Tramoy, Johnny Gasperi, Laurent Colasse, Marie Silvestre, Philippe Dubois, et al.
Endless journey of macroplastics in rivers. MICRO 2020, Fate and Impact of Microplastics : Knowledge and Responsabilities, Nov 2020, Lanzarote, Spain
Christian Mougin, Isabelle Lamy, Lisa Ciadamidaro, Sabine S
Houot, Johnny Gasperi, et al.. Les plastiques dans les sols. C. Mougin, F. Douay, M. Canavese, C. Besnard et E. Rémy. Les sols urbains sont-ils cultivables ?, Chapitre 10, pp.182-192, 2020, Edition QUAE Matière à débattre et à décider
Antoine Bruge, Marius Dhamelincourt, Laurent Lanceleur, Mathilde Monperrus, Johnny Gasperi, et al.
A first estimation of uncertainties related to microplastic sampling in rivers. Science of the Total Environment, 2020, 718, pp.137319
10.1016/j.scitotenv.2020.137319
Romain Tramoy, Johnny Gasperi, Bruno Tassin
Débris en Seine : les plastiques prennent perpette. Conférence invitée pour le second atelier "Plastiques sur le continuum Rhône-Méditerranée". Atelier n°2 "Plastiques sur le continuum Rhône-Méditerranée", Nov 2020, LYON, France
R
Tramoy, J. Gasperi, L. Colasse, M. Silvestre, P. Dubois, et al.. Transfer dynamics of macroplastics in estuaries – New insights from the Seine estuary: Part 2. Short-term dynamics based on GPS-trackers. Marine Pollution Bulletin, 2020, 160, pp.111566
10.1016/j.marpolbul.2020.111566
Ronan Guillossou, Julien Le Roux, Romain Mailler, Caroline Soares Pereira-Derome, Gilles Varrault, et al.
Influence of dissolved organic matter on the removal of 12 organic micropollutants from wastewater effluent by powdered activated carbon adsorption. Water Research, 2020, 172, pp.115487
10.1016/j.watres.2020.115487
Robin Treilles, Johnny Gasperi, Anais Gaillard, Mohamed Saad, Rachid Dris, et al.
Microplastics and microfibers in urban runoff on a suburban catchment of Paris megacity. MICRO 2020, Fate and Impact of Microplastics : Knowledge and Responsabilities, Nov 2020, Lanzarote, Spain
Robin Treilles, Aurélie Cayla, Johnny Gasperi, Bénédicte Strich, Patrick Ausset, et al.
Impacts of organic matter digestion protocols on synthetic, artificial and natural raw fibers. Science of the Total Environment, 2020, 748, p. 141230
10.1016/j.scitotenv.2020.141230
Elorri Igos, Romain Mailler, Ronan Guillossou, Vincent Rocher, Johnny Gasperi
Life cycle assessment of powder and micro-grain activated carbon in a fluidized bed to remove micropollutants from wastewater and their comparison with ozonation. Graduate Journal of Social Science, 2020, 39 p
10.1016/j.jclepro.2020.125067
Soline Alligant, Johnny Gasperi, Aline Gangnery, Frank Maheux, Benjamin Simon, et al.
Microplastic Contamination of Sediment and Water Column in the Seine River Estuary. Proceedings of the 2nd International Conference on Microplastic Pollution in the Mediterranean Sea, pp.4-9, 2020, 978-3-030-45909-3
10.1007/978-3-030-45909-3_2
Robin Treilles, Johnny Gasperi, Anaïs Gallard, Saad Mohamed, Rachid Dris, et al.
Microplastics in urban runoff on a suburban catchment of Paris megacity. Micro 2020, Nov 2020, Arrecife, Spain
Rachid Dris, Romain Tramoy, Soline Alligant, Johnny Gasperi, Bruno Tassin
Plastic Debris Flowing from Rivers to Oceans: The Role of the Estuaries as a Complex and Poorly Understood Key Interface. In: T. Rocha-Santos, M. Costa and C. Mouneyrac (Eds.). Handbook of Microplastics in the Environment. Plastic Debris Flowing from Rivers to Oceans: The Role of the Estuaries as a Complex and Poorly Understood Key Interface. In: T. Rocha-Santos, M. Costa and C. Mouneyrac (Eds.). Handbook of Microplastics in the Environment, Springer Verlag, p. 1-28, 2020, 978-3-030-10618-8
10.1007/978-3-030-10618-8_3-1
Elorri Igos, Romain Mailler, Johnny Gasperi, R Guillossou, Vincent Rocher
Analyse du cycle de vie comparative de technologies d'élimination des micropolluants en STEU. Journée Information Eaux, Oct 2020, Poitiers, France
Romain Tramoy, J
Gasperi, L. Colasse, B. Tassin. Transfer dynamic of macroplastics in estuaries -New insights from the Seine estuary: Part 1. Long term dynamic based on date-prints on stranded debris. Marine Pollution Bulletin, 2020
10.1016/j.marpolbul.2020.110894
Johnny Gasperi, Rachid Dris, Bruno Tassin
Microplastiques dans les eaux de surface et les sédiments. Université d'automne ED 614 CEGA (Chimie-Ecologie-Géosciences-Agrosciences) et 615 SBS (Sciences Biologiques et Santé) de Limoges et Poitiers, Oct 2020, Poitiers, France
Ronan Guillossou, Julien Le Roux, Romain Mailler, Catherine Morlay, Emmanuelle Vulliet, et al.
Influence of the properties of 7 micro-grain activated carbons on organic micropollutants removal from wastewater effluent. Chemosphere, 2020, 243, pp.125306
10.1016/j.chemosphere.2019.125306
Robin Treilles, Johnny Gasperi, Saad Mohamed, Alain Rabier, Jérôme Breton, et al.
Macro and Microplastics in Stormwater and Combined Sewer Overflows in Paris Megacity. Proceedings of the 2nd International Conference on Microplastic Pollution in the Mediterranean Sea, 2020, 978-3-030-45909-3
Laurent Colasse, Romain Tramoy, Johnny Gasperi, Bruno Tassin
M2 « OSPAR » in a maximum visual accumulation of plastic debris in the Seine estuary National Nature Reserve. MICRO 2020, Fate and Impact of Microplastics : Knowledge and Responsabilities, Nov 2020, Lanzarote, Spain. MICRO 2020, Fate and Impact of Microplastics : Knowledge and Responsabilities, 2020
Johnny Gasperi, Rachid Dris, Robin Treilles, Romain Tramoy, Bruno Tassin
Microplastiques dans les milieux récepteurs : définition, points de vigilance, et quelques exemples de résultats sur la Seine. Conférence invitée pour le second atelier "Plastiques sur le continuum Rhône-Méditerranée".
David Gateuille, Julia Dusaucy, Frédéric Gillet, Johnny Gasperi, Rachid Dris, et al.
Microplastic contamination in remote alpine lakes. EGU general assembly 2020, May 2020, VIENNE, Austria
10.5194/egusphere-egu2020-1292
Johnny Gasperi, Soline Alligant, Rachid Dris, Romain Tramoy, Robin Treilles, et al.
Plastic Debris in Urban Water and in Freshwater: Lessons Learned from Research Projects Launched in the Seine Basin Catchment. Proceedings of the 2nd International Conference on Microplastic Pollution in the Mediterranean Sea, Springer International Publishing, 2020, Springer Nature Switzerland AG 2020, 978-3-030-45909-3
10.1007/978-3-030-45909-3_3
Emilie Strady, Thuy-Chung Kieu-Le, Johnny Gasperi, Bruno Tassin
Temporal dynamic of anthropogenic fibers in a tropical river-estuarine system. Environmental Pollution, 2020, pp.113897
10.1016/j.envpol.2019.113897
Frédéric Gillet, Peter Gallinelli, Emmanuel Naffrechoux, Johnny Gasperi, David Gateuille
The "Mantamaran", a light, robust, portable and affordable sampler designed for altitudes lake microplastics sampling campaigns. MICRO 2020, Fate and Impact of Microplastics : Knowledge and Responsabilities, Nov 2020, Arrecife (on line), Spain
Johnny Gasperi, Rachid Dris, Soline Alligant, Romain Tramoy, Marie-Pierre Halm-Lemeille, et al.
The fate of microplastics along salinity gradient and tidal cycles in a well-mixed estuary : a case study of the Seine estuary. MICRO 2020, Fate and Impact of Microplastics : Knowledge and Responsabilities, Nov 2020, Lanzarote, Spain
Ronan Guillossou, Julien Le Roux, Romain Mailler, Catherine Morlay, Emmanuelle Vulliet, et al.
Critères pour la sélection de charbons actifs en micro-grain pour l’élimination de micropolluants organiques dans les eaux usées. 98ème congrès de l'Astee, Jun 2019, Saumur, France
Robin Treilles, Johnny Gasperi, Rachid Dris, Romain Tramoy, Bruno Tassin
Microplastiques en Seine : premières investigations et estimations des flux à l’échelle du bassin de la Seine, dans Flux dans le continuum Homme-Terre-Mer. [Rapport de recherche] Piren-Seine. 2019
Ronan Guillossou, Julien Le Roux, Romain Mailler, Emmanuelle Vulliet, Catherine Morlay, et al.
Micropolluants dans les eaux usées : qu’apporte un traitement avancé par adsorption sur charbon actif après un traitement conventionnel ?. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2019, 7/8, pp.66-80
10.1051/tsm/201907067
Johnny Gasperi, Rachid Dris, Bruno Tassin
Recherches sur les microplastiques en Ile-de-France. Conférence invitée dans le cadre du comité des sciences de l'environnement, Académie d’agriculture, Oct 2019, Paris, France
David Gateuille, Johnny Gasperi, Cyrielle Briand, Elodie Moreau-Guigon, Fabrice Alliot, et al.
Mass Balance of PAHs at the Scale of the Seine River Basin. Mass Balance of PAHs at the Scale of the Seine River Basin, 90, SPRINGER, 2019, 978-3-030-54259-7
10.1007/698_2019_382
Romain Tramoy, Johnny Gasperi, Bruno Tassin, Florian Rognard
ESTIMATION DES FLUX DE MACRODÉCHETS SUR LE BASSIN DE LA SEINE. [Rapport de recherche] LEESU; MTES; UPEC; ENPC. 2019
Romain Tramoy, Johnny Gasperi, Rachid Dris, Laurent Colasse, Cédric Fisson, et al.
Assessment of the Plastic Inputs From the Seine Basin to the Sea Using Statistical and Field Approaches. Frontiers in Marine Science, 2019, 6
10.3389/fmars.2019.00151
Romain Tramoy, Johnny Gasperi, Rachid Dris, Laurent Colasse, C
Fisson, et al.. Estimation des flux de plastiques transitant en Seine : quelles méthodes pour quels résultats ?. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2019, 1-2, pp.15-26
10.1051/tsm/201901015
Soline Alligant, Johnny Gasperi, Aline Gangnery, Frank Maheux, Benjamin Simon, et al.
Microplastic Contamination of Sediment and Water Column in the Seine River Estuary. Proceedings of the 2nd International Conference on Microplastic Pollution in the Mediterranean Sea, Sep 2019, Capri, Italy. p. 4-9
Johnny Gasperi, Soline Alligant, Rachid Dris, Romain Tramoy, Robin Treilles, et al.
Plastic Debris in Urban Water and in Freshwater: Lessons Learned from Research Projects Launched in the Seine Basin Catchment. Proceedings of the 2nd International Conference on Microplastic Pollution in the Mediterranean Sea, Sep 2019, Capri, Italy. p. 10-11
Tim van Emmerik, Romain Tramoy, Caroline van Calcar, Soline Alligant, Robin Treilles, et al.
Seine plastic debris transport tenfolded during increased river discharge. Frontiers in Marine Science, 2019
Johnny Gasperi, Soline Alligant, Bruno Tassin, Messika Revel, Catherine Mouneyrac, et al.
PLASTIC-Seine research project: Microplastic Flux and Impact on biota in the Seine estuary.. SETAC Europe 29th annual meeting - One Environment. One Health. Sustainable Societies, May 2019, Helsinki, Sweden
Jérôme Cachot, Christelle Clérandeau, Florane Le Bihanic, Caroline Vignet, Pauline Pannetier, et al.
Évaluation de la contamination et des effets écotoxiques des microplastiques en estuaire de Seine ; les premiers enseignements du projet Plastic-Seine. GDR Polymères et Océans, Jun 2019, Créteil, France.
Isabelle Lamy, Christian Mougin, Johnny Gasperi, Bruno Tassin
Impacts écotoxicologiques des microplastiques sur les écosystèmes terrestres : Etat de l’art et besoins de recherche. Comité des sciences de l’environnement de l’Académie des Sciences, Oct 2019, Paris, France
Robin Treilles, Johnny Gasperi, Saad Mohamed, Alain Rabier, Jérôme Breton, et al.
Macro and microplastics in stormwater in Paris Megacity. µMED Capri : II International Conference on Microplastic Pollution in the Mediterranean Sea, Sep 2019, Capri, Italy
Claire Froger, Cécile Quantin, Johnny Gasperi, Emilie Caupos, Gaël Monvoisin, et al.
Impact of urban pressure on the spatial and temporal dynamics of PAH fluxes in an urban tributary of the Seine River (France). Chemosphere, 2019, 219, pp.1002-1013
10.1016/j.chemosphere.2018.12.088
Johnny Gasperi, Soline Alligant, Rachid Dris, Romain Tramoy, Robin Treilles, et al.
Plastic debris in urban water and freshwater: lessons learned from the Seine Basin catchment. II International Conference on Microplastic Pollution in the Mediterranean Sea (μMED), Capri (Italy), septembre 2019., Sep 2019, Capri, Italy
Josette Garnier, Johnny Gasperi
PIREN-Seine - Rapport de synthèse phase VII (2019) – Vol 2: Flux dans le continuum Homme-Terre-Mer. 2019, Rapport de synthèse PIREN-Seine
10.26047/PIREN.rapp.synth.2019.vol2
Romain Tramoy, Laurent Colasse, Johnny Gasperi, Bruno Tassin
Plastic debris dataset on the Seine river banks: plastic pellets, unidentified plastic fragments and plastic sticks are the Top 3 items in a historical accumulation of plastics. Data in Brief, 2019
10.1016/j.dib.2019.01.045
Johnny Gasperi, Bruno Tassin
Etat des connaissances sur les microplastiques dans les eaux urbaines et les milieux récepteurs. Colloquie de l'Association Scientifique Européenne pour l'Eau et la Santé, May 2019, Paris, France
France Collard, Johnny Gasperi, Geir Wing Gabrielsen, Bruno Tassin
Plastic particle ingestion by wild freshwater fish: a critical review. Environmental Science and Technology, 2019, 31
10.1021/acs.est.9b03083
Sophie Ayrault, Michel Meybeck, Jean-Marie Mouchel, Johnny Gasperi, Laurence Lestel, et al.
Sedimentary Archives Reveal the Concealed History of Micropollutant Contamination in the Seine River Basin. In " The Seine River Basin, Hdb Env Chem". Sedimentary Archives Reveal the Concealed History of Micropollutant Contamination in the Seine River Basin, 90, SPRINGER, 2019, 978-3-030-54259-7
10.1007/698_2019_386
Ronan Guillossou, Julien Le Roux, Romain Mailler, Emmanuelle Vulliet, Catherine Morlay, et al.
Organic micropollutants in a large wastewater treatment plant: What are the benefits of an advanced treatment by activated carbon adsorption in comparison to conventional treatment?. Chemosphere, 2019, 218, pp.1050-1060
10.1016/j.chemosphere.2018.11.182
Rachid Dris, Johnny Gasperi, Bruno Tassin
État des connaissances sur les microplastiques, et leurs risques associés, particulièrement en milieu urbain. Conférence invitée dans le cadre d'une séance solennelle de l'Académie de Pharmacie, Dec 2019, Paris, France
Romain Tramoy, Johnny Gasperi, Rachid Dris, Laurent Colasse, Cédric Fisson, et al.
Flux et dynamique de transfert des macroplastiques du continent à la mer : le cas de la Seine. Polymères et Océans, Jun 2019, Créteil, France
Claire Froger, Sophie Ayrault, Johnny Gasperi, Emilie Caupos, Gaël Monvoisin, et al.
Innovative combination of tracing methods to differentiate between legacy and contemporary PAH sources in the atmosphere-soil-river continuum in an urban catchment (Orge River, France). Science of the Total Environment, 2019, pp.448-458
10.1016/j.scitotenv.2019.03.150
Robin Treilles, Johnny Gasperi, Mohamed Saad, Jérôme Breton, Vincent Rocher, et al.
Macro and Microplastics in Stormwater and Combined Sewer Overflows in Paris Megacity. Proceedings of the 2nd International Conference on Microplastic Pollution in the Mediterranean Sea, Sep 2019, Capri, Italy. p. 145-151
R
Tramoy, Johnny Gasperi, R. Dris, L. Colasse, C. Fisson, et al.. Plastic input from the Seine Basin to the Sea : what method for what results?. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2019, 1-2, pp.15-26
10.1051/tsm/201901015
Soline Alligant, Johnny Gasperi, El Rakwe, Catherine Dreanno, Aline Gangnery, et al.
Microplastic contamination of sediment and water column in the Seine River Estuary. II International Conference on Micoplastic Pollution in the Mediterranean Sea, Sep 2019, Capri, Italy
Christian Mougin, J
Gasperi, Sabine Houot, Bruno Tassin. Plastiques et dérivés : quels niveaux de contaminations et quels impacts écotoxicologiques sur les écosystèmes terrestres ? Journée d'échanges « Qualité des sols urbains et périurbains et compatibilité des usage » de l’Observatoire des Sciences de l'Univers de Nantes Atlantique (OSUNA). Journée d'échanges « Qualité des sols urbains et périurbains et compatibilité des usage » de l’Observatoire des Sciences de l'Univers de Nantes Atlantique (OSUNA), May 2019, Paris, France
Robin Treilles, Johnny Gasperi, Saad Mohamed, Alain Rabier, Jérôme Breton, et al.
Macro and microplastics in stormwater and combined sewer overflows in Paris megacity. Novatech 2019, Jul 2019, Lyon, France
Steven Deshayes, Johnny Gasperi, Emilie Caupos, Chandirane Partibane, Lila Boudahmane, et al.
Bisphenol A, alkylphenol and phtalates in road and car park runoff: from vehicle component emissions to in-situ measurement. Novatech, Jul 2019, Lyon, France
Robin Treilles, Aurélie Cayla, Bénédicte Strich, Patrick Ausset, Johnny Gasperi, et al.
Impact des protocoles de digestion sur les fibres synthétiques, artificielles et naturelles. Polymères et Océans, GDR 2019, Jun 2019, Créteil, France
Rachid Dris, Johnny Gasperi, Vincent Rocher, Bruno Tassin
Synthetic and non-synthetic anthropogenic fibers in a river under the impact of Paris Megacity: Sampling methodological aspects and flux estimations. Science of the Total Environment, 2018, 618, pp.157-164
10.1016/j.scitotenv.2017.11.009
Robin Treilles, Johnny Gasperi, Romain Tramoy, Vincent Rocher, Bruno Tassin
Microplastic concentrations in freshwater during a flood event, a case study of the Seine river catchment. Micro 2018 Fate and Impact of Microplastics: Knowledge, Actions and Solutions, Nov 2018, Arrecife, Spain
Ronan Guillossou, Johnny Gasperi, Julien Le Roux, Romain Mailler, Céline Briand, et al.
Micropolluants dans les eaux usées : qu'apporte un traitement tertiaire par adsorption sur charbon actif ?. 97ème congrès de l'ASTEE, Jun 2018, Marseille, France
Sophie Ayrault, Philippe Bonte, M
Roy-Barmann, Laurence Lestel, Jean-Marie Mouchel, et al.. Archives sédimentaires : empreintes des contaminations dans le bassin de la Seine, de 1930 à nos jours. 26ième Réunion des Sciences de la Terre, Oct 2018, Lille, France
Romain Tramoy, J
Gasperi, R Dris, L. Colasse, C. Fisson, et al.. Premières tentatives de quantification des flux de macro déchets plastiques en Seine. ASTEE 2018, Jun 2018, Marseille, France
Robin Treilles, Johnny Gasperi, Romain Tramoy, Vincent Rocher, Bruno Tassin
Evolution de la concentration en microplastiques dans le bassin de la Seine lors de la crue de janvier 2018. Rapport PIREN-Seine. 2018
Lisa Lahens, Emilie Strady, Thuy-Chung Kieu-Le, Rachid Dris, Kada Boukerma, et al.
Macroplastic and microplastic contamination assessment of a tropical river (Saigon River, Vietnam) transversed by a developing megacity.. Environmental Pollution, 2018, pp.661-671
10.1016/j.envpol.2018.02.005
Robin Treilles, Johnny Gasperi, Mohamed Saad, Alain Rabier, Jérôme Breton, et al.
Macro et microplastiques dans les rejets urbains de temps de pluie et dans les eaux pluviales de l'agglomération parisienne. Journées Doctorales en Hydrologies Urbaines, Nov 2018, Paris, France
Johnny Gasperi, Bruno Tassin
Pollution des océans et des cours d’eau par les débris plastiques : Constats et Impacts. Plastique en mer, solutions à terre ! Quelles évolutions pour notre société du tout plastique ? Conférence à l'assemblée nationnale, Sep 2018, Paris, France
Alexandre Bergé, Audrey Buleté, Aurélie Fildier, Romain Mailler, Johnny Gasperi, et al.
Caractérisation d’un pilote de traitement tertiaire par une approche globale basée sur la spectrométrie de masse haute résolution. Colloque INERIS Améliorer le diagnostic des polluants organiques environnementaux : mise en œuvre d’approches d’analyses non-ciblées, Feb 2018, Paris, France
Rachid Dris, Johnny Gasperi, Bruno Tassin
Sources and Fate of Microplastics in Urban Areas: A Focus on Paris Megacity. Wagner M.; Lambert S. Freshwater Microplastics. The Handbook of Environmental Chemistry, vol 58, Springer, 2018, 978-3-319-61614-8,978-3-319-61615-5
10.1007/978-3-319-61615-5_4
Soline Alligant, Johnny Gasperi, Aline Gangnery, Frank Maheux, Benjamin Simon, et al.
Concentrations and morphology of microplastics in the Seine river estuary. Micro2018 Fate and Impact of Microplastics: Knowledge, Actions and Solutions, Nov 2018, Arrecife, Spain
Johnny Gasperi, Stephanie L
Wright, Rachid Dris, France Collard, Corinne Mandin, et al.. Microplastics in air: Are we breathing it in?. Current Opinion in Environmental Science & Health, 2018, 1, pp.1 - 5
10.1016/j.coesh.2017.10.002
Romain Tramoy, Johnny Gasperi, L
Colasse, C. Fisson, S Sananes, et al.. Plastic input from the Seine River into the oceans: first results from the MacroPLAST project. MICRO2018, Nov 2018, LANZAROTE, Spain
Nicolas Flipo, Jean-Marie Mouchel, Cédric Fisson (Dir.)
Les effets de la crue de juin 2016 sur la qualité de l'eau du bassin de la Seine. Nicolas Flipo, Jean-Marie Mouchel, Cédric Fisson. Programme Interdisciplinaire de Recherche sur l'eau et l'environnement du bassin de la Seine (PIREN Seine), 2018, 978-2-490463-05-03
Alexandre Bergé, Audrey Buleté, Johnny Gasperi, Romain Mailler, Vincent Rocher, et al.
La spectrométrie de masse haute résolution : un outil innovant de caractérisation des ouvrages d’assainissement. 97ième Colloque ASTEE, Jun 2018, Marseille, France
Alexandre Bergé, Audrey Buleté, Aurélie Fildier, R
Mailler, Johnny Gasperi, et al.. Non-target strategies by HRMS to evaluate fluidized micro-grain activated carbon as a tertiary treatment of wastewater. Chemosphere, 2018, 213, pp.587-595
10.1016/j.chemosphere.2018.09.101
Ronan Guillossou, Julien Le Roux, Romain Mailler, Stephan Brosillon, Emmanuelle Vulliet, et al.
Coupling ozonation and activated carbon adsorption for the removal of 28 trace organic micropollutants from wastewater effluents.. EA3G 2018, Sep 2018, Lausanne, Switzerland
Vincent Rocher, Sam Azimi, Johnny Gasperi
Micro-contamination et STEP : efficacité des filières de traitement des eaux, contamination des boues et nouveaux outils de suivi. Colloque Eau Santé et Environnement, Nov 2018, Evry, France
Bruno Tassin, Soline Alligant, Robin Treilles, Vincent Rocher, Rachid Dris, et al.
Que sait-on aujourd’hui de la contamination des eaux urbaines et des eaux de surface par les microplastiques ?. 97ème congrès de l’Astee, Jun 2018, Marseille, France
Antoine Bruge, Marius Dhamelincourt, Johnny Gasperi, Laurent Lanceleur, Mathilde Monperrus, et al.
A first estimation of uncertainties related to microplastic sampling in rivers. MICRO 2018 Fate and Impact of Microplastics: Knowledge, Actions and Solutions, Lanzarote (Espagne), novembre 2018., Nov 2018, Arrecife (Lanzarote), Spain
S
Deshayes, V. Eudes, C. Droguet, Johnny Gasperi, R. Mailler, et al.. Devenir des micropolluants au sein de la station d’épuration de Seine Centre : étude simultanée des filières eau et boue. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2018, 6, pp.33 - 44
10.1051/tsm/20186p33
Romain Tramoy, Johnny Gasperi, Laurent Colasse, Cédric Fisson, Nicolas Bacq, et al.
Estimer les flux de macro-déchets dans la Seine : un véritable casse-tête ?. I.S.Rivers 2018, Jun 2018, Lyon, France
A
Bergé, A. Bulete, A. Fildier, Johnny Gasperi, R. Mailler, et al.. La spectrométrie de masse haute résolution : un outil innovant de caractérisation des ouvrages d’assainissement. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2018, 12, pp.51-68
Rachid Dris, Johnny Gasperi, Vincent Rocher, Bruno Tassin
Microplastiques en Seine dans l’agglomération parisienne : étude des variations spatiales et temporelles des fibres anthropiques synthétiques et artificielles. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2018, 5, pp.45 - 54
10.1051/tsm/201805045
Johnny Gasperi, Romain Tramoy, Isabelle Poitou, Denis Blot, Bruno Tassin
Du macro- aux microplastiques : une pollution « émergente » dans le continuum terre-mer.. Colloque « Les enjeux des polluants émergents dans le continuum terre-mer en Méditerranée », Marseille, décembre 2018., Dec 2018, Marseille, France
Johnny Gasperi, Bruno Tassin
Du macro- aux microplastiques : une nouvelle pollution des rivières. Forum « Les cours d’eau franciliens : Regards croisés sur les qualités et les usages actuels et futurs », May 2018, Paris, France
Johnny Gasperi, Sophie Ayrault, Elodie Moreau-Guigon, Fabrice Alliot, Pierre Labadie, et al.
Contamination of soils by metals and organic micropollutants: case study of the Parisian conurbation. Environmental Science and Pollution Research, 2018, 25 (24), pp.23559-23573
10.1007/s11356-016-8005-2
Claire Froger, Cécile Quantin, Johnny Gasperi, Emilie Caupos, Gaël Monvoisin, et al.
Sources, dynamique et bilan des flux de HAP dans le bassin de l'Orge : une approche intégrative dans le continuum atmosphère -sol - rivière. [Rapport de recherche] PIREN Seine. 2018
Johnny Gasperi, Bruno Tassin, Denis Blot
Les déchets océaniques : à qui sont ces objets ? Regards croisés des sciences sociales et des sciences de la nature. 5ième journée habiter le monde, Oct 2018, Amiens, France
Soline Alligant, Bruno Tassin, Aline Gangnery, Franck Maheux, Benjamin Simon, et al.
Contamination en microplastiques dans l’estuaire de la Seine. 14ème édition du colloque international francophone en écotoxicologie aquatique EcoBIM 2018, May 2018, Bordeaux, France
Tim van Emmerik, Thuy-Chung Kieu-Le, Michelle Loozen, Kees van Oeveren, Emilie Strady, et al.
A Methodology to Characterize Riverine Macroplastic Emission Into the Ocean. Frontiers in Marine Science, 2018, 5, pp.372
10.3389/fmars.2018.00372
Ronan Guillossou, Johnny Gasperi, Julien Le Roux, Romain Mailler, Emmanuelle Vulliet, et al.
Micropolluants dans les eaux usées : qu'apporte un traitement tertiaire par adsorption sur charbon actif ?. 8èmes Journées Doctorales en Hydrologie Urbaine, Nov 2018, Paris, France
Soline Alligant, Johnny Gasperi, Aline Gangnery, Franck Maheux, Benjamin Simon, et al.
Microplastic contamination in the Seine River estuary. International Conference on Estuaries and Coasts 2018 (ICEC 2018), Aug 2018, Caen, France
Ronan Guillossou, Julien Le Roux, Romain Mailler, S
Brosillon, Emmanuelle Vulliet, et al.. Etude du couplage ozonation-adsorption sur charbon actif pour l’abattement de micropolluants prioritaires et émergents en traitement tertiaire.. 23ème Journées Information Eaux, Oct 2018, Poitiers, France
Rachid Dris, Hannes Imhof, Martin Loder, Johnny Gasperi, Christian Laforsch, et al.
Microplastic Contamination in Freshwater Systems: Methodological Challenges, Occurrence and Sources. Microplastic Contamination in Aquatic Environments: An Emerging Matter of Environmental Urgency, 2018
Cyrielle Briand, Adèle Bressy, Chebbo Ghassan, José-Frédéric Deroubaix, Steven Deshayes, et al.
Que sait-on des micropolluants dans les eaux urbaines ?. ARCEAU IdF; AFB - Agence française pour la biodiversité, 2018, 978-2-490463-00-8
Robin Treilles, Aurélie Cayla, J
Gasperi, B Strich, Patrick Ausset, et al.. Impacts of digestion protocols on chemical and natural fibers. Microplastics2018, Oct 2018, Ascona, Switzerland
France Collard, Johnny Gasperi, Bernard Gilbert, Gauthier Eppe, Sam Azimi, et al.
Anthropogenic particles in the stomach contents and liver of the freshwater fish Squalius cephalus. Science of the Total Environment, 2018, 643, pp.1257 - 1264
10.1016/j.scitotenv.2018.06.313
Johnny Gasperi
Interview Johnny Gasperi - France Inter - Jounral de 19h - 15/03/2018. 2018
Rachid Dris, Johnny Gasperi, Bounoua Byllel, Vincent Rocher, Bruno Tassin
Microplastics in Different Compartments of the Urban Water Cycle: From the Sources to the Rivers. Elsevier. Fate and Impact of Microplastics in Marine Ecosystems; From the Coastline to the Open Sea, 2017, Fate and Impact of Microplastics in Marine Ecosystems, 978-0-12-812271-6
Johnny Gasperi
How and at which spatial scale assess the impact of the Paris Megacity on the Seine River quality? Case of some organic micropollutants. ARCUS French-Indian cooperation project, Anna University, Feb 2017, Chennai, India
Eva Risch, J
Gasperi, Marie-Christine Gromaire, Ghassan Chebbo, S. Azimi, et al.. LCA of wet-weather emissions of an urban wastewater system: the case of the Greater Paris watershed. 18th International Conference on Diffuse Pollution and Eutrophication, Aug 2017, Los Angeles, United States. pp.2
Johnny Gasperi, Romain Mailler, Alexandre Bergé, Audrey Buleté, Sébastien Pichon, et al.
Résidus pharmaceutiques et détergents dans les boues résiduaires urbaines – Qualité des boues de fin de filière et évolution au sein des filières de traitement. 96ième colloque de l'ASTEE, Jun 2017, Liège, Belgique
Romain Mailler, Johnny Gasperi, Emmanuelle Vulliet, Audrey Buleté, Sam Azimi, et al.
Evaluation de l’empreinte des rejets de STEP de l’agglomération parisienne en résidus pharmaceutiques et autres polluants émergents. Revue L'Eau, L'Industrie, Les Nuisances, 2017, pp.90-96
Collard France, Johnny Gasperi, Gauthier Eppe, Bernard Gilbert, Sam Azimi, et al.
Occurrence of anthropogenic particles in the fish Squalius cephalus from the Seine and Marne Rivers. 15th International Conference on Environmental Science And Technology, Aug 2017, Rhodes, Greece
Ali Hannouche, Ghassan Chebbo, Claude Joannis, Johnny Gasperi, Marie-Christine Gromaire, et al.
Stochastic evaluation of annual micropollutant loads and their uncertainties in separate storm sewers. Environmental Science and Pollution Research, 2017, 24 (36), pp.28205 - 28219
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Gateuille, Johnny Gasperi, Cyrielle Briand, Elodie Moreau-Guigon, Fabrice Alliot, et al.. Mass balance of organic contaminants at the scale of the Seine River basin (FRANCE). International Conference on Monitoring, Modelling and Management of River Basins (RIVER BASINS 2017), Jun 2017, Vienne, Austria. pp.19
R Guillossou, Julien Le Roux, R Mailler, Emmanuelle Vulliet, C Morlay, et al.
Abattement de micropolluants par adsorption sur charbon actif en micro-grain en sortie de station d’épuration : caractérisation et suivi indirect par spectroscopie (UV254 et fluorescence 3D). Gruttee 2017 : 12th GRUTTEE international congress, The national school for water and environmental engineering (ENGEES) ; The engineering science, computer science and imaging laboratory (ICube), Oct 2017, Strasbourg, France
Collard France, Bernard Gilbert, Gauthier Eppe, Sam Azimi, Vincent Rocher, et al.
Microplastics found in the stomach contents of the European chub (Squalius cephalus) from the Seine River. 16th International Conference on Chemistry and the Environment, Jun 2017, Osli, Norway
Jean-Marie Mouchel, Sophie Ayrault, H
Budzinski, C. Fisson, Nicolas Flipo, et al.. Influence de la crue de juin 2016 sur les flux de matières dans le bassin de la Seine. Colloque PIREN-Seine, 2017, Oct 2017, Paris, France
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Gateuille, Johnny Gasperi, Elodie Moreau-Guigon, Fabrice Alliot, Blanchard Martine, et al.. Mass balance of organic contaminants at the scale of the Seine River basin (France). River Basins - International Conference on Monitoring, Modelling and Management of River Basins, Jun 2017, Vienne, Austria
Johnny Gasperi, Christel Sebastian, Véronique Ruban, Mélissa Delamain, Stéphane Percot, et al.
Contamination des eaux pluviales par les micropolluants: avancées du projet INOGEV. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2017, 7/8, pp.51-66
10.1051/tsm/201778051
Emilie Strady, Lahens Lisa, Rachid Dris, K Le Thuy Chung, Dounia Benali, et al.
Microplastics: an emerging contaminant in the Saigon River, Vietnam. 3rd International Conference on Environmental Pollution, Restoration, and Management, Mar 2017, Quy Nhon, Vietnam
Eva Risch, Johnny Gasperi, Marie-Christine Gromaire, Ghassan Chebbo, Sam Azimi, et al.
LCA of wet-weather emissions of an urban wastewater system: the case of the Greater Paris watershed. 18th International Conference on Diffuse Pollution and Eutrophication, Aug 2017, Los Angeles, United States
Johnny Gasperi
Bassin de la Seine : Imprégnation en micropolluants historiques et émergents d’un bassin versant fortement urbanisé. 96ième colloque de l'ASTEE, ASTEE, Jun 2017, Liège, Belgique
Eva Risch, Johnny Gasperi, Marie-Christine Gromaire, Ghassan Chebbo, Sam Azimi, et al.
Impacts from urban water systems on receiving waters – How to account for severe wet-weather events in LCA?. Water Research, 2017, 128, pp.412-423
10.1016/j.watres.2017.10.039
Steven Deshayes, Johnny Gasperi, Emilie Caupos, Pierre Labadie, H
Budzinski, et al.. Quantification of twelve families of emerging pollutants in road and car park runoff. 14th IWA/IAHR International Conference on Urban Drainage (ICUD), IWA, Sep 2017, Prague, Czech Republic
Alexandre Bergé, Audrey Buleté, Aurélie Fildier, Johnny Gasperi, Romain Mailler, et al.
La spectrométrie de masse haute résolution comme outil d’évaluation et de caractérisation du traitement des boues. 1er Colloque du Réseau Public Contaminants, Nouveaux risques & contaminants émergents, Arcachon, novembre 2017, Nov 2017, Arcachon, France
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Mailler, J. Gasperi, Dominique Patureau, E. Vulliet, N. Delgenes, et al.. Fate of emerging and priority micropollutants during the sewage sludge treatment: Case study of Paris conurbation. Part 1: Contamination of the different types of sewage sludge. Waste Management, 2017, 59, pp.379-393
10.1016/j.wasman.2016.11.010
Vincent Rocher, Sam Azimi, Catherine Paffoni, Olivier Rousselot, Jean-Pierre Tabuchi, et al.
Evolution de la qualité de la Seine en lien avec les progrès de l'assainissement - De 1970 à 2015. Edition Johanet, 2017, 979-10-91089-31-9
Rachid Dris, Johnny Gasperi, Cécile Mirande, Corinne Mandin, Mohamed Guerrouache, et al.
A first overview of textile fibers, including microplastics, in indoor and outdoor environments. Environmental Pollution, 2017, 221, pp.453 - 458
10.1016/j.envpol.2016.12.013
Rachid Dris, Johnny Gasperi, Vincent Rocher, Bruno Tassin
Microplastics in different compartments of the urban water cycle: from the sources to the rivers. Micro 2016 - Fate and Impact of Microplastics in Marine Ecosystems: From the Coastline to the Open Sea, May 2016, Lanzarote, Spain
Rachid Dris, Johnny Gasperi, Vincent Rocher, Bruno Tassin
Microplastiques dans différents compartiments du cycle urbain de l’eau. Colloque ARET 2016 – Plastiques : quels enjeux pour demain? - Pollution physico-chimique et impacts environnementaux et sanitaires, Jun 2016, Valence, France
Rachid Dris, Johnny Gasperi, Mohammed Saad, Cécile Mirande-Bret, Bruno Tassin
Synthetic fibers in atmospheric fallout: a source of microplastics in the environment?. Marine Pollution Bulletin, 2016
10.1016/j.marpolbul.2016.01.006
Eva Risch, Johnny Gasperi, Ghassan Chebbo, Sam Azimi, Vincent Rocher, et al.
Impacts of storm events on the emissions of an urban wastewater system: case of the Greater Paris. 22nd SETAC Europe LCA Case Study Symposium, Sep 2016, Montpellier, France
Rachid Dris, Johnny Gasperi, Bounoua Byllel, Vincent Rocher, Bruno Tassin
Microplastics in rivers: Focus on short-term temporal and spatial variabilities . SETAC (Society of Environmental Toxicology and Chemistry) Nantes 2016, May 2016, Nantes, France. 2016
Eva Risch, J
Gasperi, Marie-Christine Gromaire, Ghassan Chebbo, S. Azimi, et al.. Impacts of storm events on the emissions of an urban wastewater system: case of the Greater Paris. SETAC Europe 22nd LCA Case Study Symposium, Sep 2016, Montpellier, France. pp.1
Eva Risch, Johnny Gasperi, Marie-Christine Gromaire, Ghassan Chebbo, Sam Azimi, et al.
Impacts of severe wet-weather events: How to account for temporal variability of unmanaged peak flows in an urban sewage treatment system? . SETAC Europe 26th Annual Meeting, May 2016, Nantes, France
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Gateuille, Johnny Gasperi, Cyrielle Briand, Fabrice Alliot, Martine Blanchard, et al.. Flux de polluants organiques dans le bassin de la Seine. Conférence ARCEAU « micropolluants présents dans les milieux aquatiques et leur impact sur la santé humaine - exemple de l’agglomération parisienne », ARCEAU, Nov 2016, Paris, France
Bruno Tassin, Johnny Gasperi, Rachid Dris
Plastiques : un septième continent en expansion. Conférences de la cité des sciences, May 2016, Paris, France
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Briand, D. Gateuille, J. Gaspéri, E. Moreau-Guigon, F. Alliot, et al.. Bilans et flux de polluants organiques dans le bassin de la Seine. [0] PIREN Seine. 2016
Eva Risch, J
Gasperi, Marie-Christine Gromaire, Ghassan Chebbo, S. Azimi, et al.. Impacts of severe wet-weather events: how to account for temporal variability of unmanaged peak flows in an urban sewage treatment system?. SETAC Europe 26th Annual Meeting, May 2016, Nantes, France. pp.2
Johnny Gasperi, Romain Mailler, Dominique Steyer Patureau, Emmanuelle Vulliet, Steven Deshayes, et al.
Contamination des boues résiduaires urbaines parisiennes par des micropolluants prioritaires et émergents - Évolution au cours des filières de traitement. Journées informations Eaux - JIE 2016, Oct 2016, Poitiers, France
Rachid Dris, Emilie Strady, Lahens Lisa, Johnny Gasperi, Bruno Tassin
Preliminary study of microplastics in a tropical river impacted by a megacity (Saigon River, Ho Chi Minh City, Vietnam) . SETAC (Society of Environmental Toxicology and Chemistry) Nantes 2016, May 2016, Nantes, France. 2016
Sophie Ayrault, Johnny Gasperi, Bogdan Muresan, Régis Moilleron
Soil contamination in the Seine River Basin: an attempt to relate land-use to persistent and emerging metallic pollutions. 18th International Conference on Heavy Metals in the Environment, Sep 2016, Ghent, Belgium
Elodie Moreau-Guigon, Fabrice Alliot, Johnny Gasperi, Martine Blanchard, Marie-Jeanne Teil, et al.
Seasonal fate and gas/particle partitioning of semi-volatile organic compounds in indoor and outdoor air. Atmospheric Environment, 2016, 147, pp.423-433
10.1016/j.atmosenv.2016.10.006
Marie-Christine Gromaire, A Bak, Ph Branchu, Adèle Bressy, S
Bruzzone, et al.. ROULÉPUR: Evaluating innovative solutions for the source control of micropollutants associated with road and parking lot runoff. NOVATECH 2016, Jun 2016, Lyon, France
Johnny Gasperi, Romain Mailler, D Patureau, Emmanuelle Vulliet, S Deshayes, et al.
Contamination des boues résiduaires urbaines parisiennes par des micropolluants prioritaires et émergents et évolution au cours des filières de traitement des boues. 95ème congrès de l’ASTEE, ASTEE - Association Scientifique et Technique pour l’Eau et l’Environnement, May 2016, Issy-les-Moulineaux, France
Marie-Jeanne Teil, Elodie Moreau-Guigon, Martine Blanchard, Fabrice Alliot, Johnny Gasperi, et al.
Endocrine disrupting compounds in gaseous and particulate outdoor air phases according to environmental factors. Chemosphere, 2016, 146, pp.94-104
10.1016/j.chemosphere.2015.12.015
Yves Coquet, Romain Mailler, Johnny Gasperi, Audrey Buleté, Emmanuelle Vulliet, et al.
Élimination des résidus médicamenteux en STEP par traitement tertiaire : résultats obtenus avec le procédé CarboPlus micro-grain. Journées Informations Eaux, Oct 2016, Poitiers, France
Johnny Gasperi, Rachid Dris, C
Mirande-Bret, Corinne Mandin, Valérie Langlois, et al.. First overview of synthetic fibers in indoor and outdoor air. 14th international conference of Indoor Air Quality and Climate, Jul 2016, Ghent, Belgium
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Gateuille, Cyrielle Briand, Johnny Gasperi, Elodie Moreau-Guigon, Fabrice Alliot, et al.. Mass balance of organic contaminants at a large basin scale: case of the Seine River basin (France). International Symposium on Persistent Toxic Substances, Oct 2016, Leipzig, Germany
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Rocher, R. Mailler, J. Gasperi, Y. Coquet, F. Nauleau, et al.. Élimination des polluants émergents dans les rejets de STEP - 1. Étude du procédé CarboPlus à l’échelle du prototype . TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2016, 3
10.1051/tsm/201603012
Sophie Ayrault, Johnny Gasperi
Sédiments, racontez-moi l’histoire de la Seine…. Biofutur, 2016, 379, pp.48-51
Rachid Dris, Johnny Gasperi, Vincent Rocher, Mohamed Saad, Bruno Tassin
Microplastics and urban water. Colloque 2016 de l'ARET :Plastiques : quels enjeux pour demain ? Pollution physico-chimique & Impacts environnementaux et sanitaires, ARET : association française de recherches en toxicologie, Jun 2016, Valence TGV, France
Vincent Rocher, Johnny Gasperi
Micropolluants et assainissement – Focus sur les techniques de dépollution aval. Conférence ARCEAU « micropolluants présents dans les milieux aquatiques et leur impact sur la santé humaine - exemple de l’agglomération parisienne », ARCEAU, Nov 2016, Paris, France
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Mailler, J. Gasperi, Y. Coquet, C. Derome, A. Buleté, et al.. Élimination des polluants émergents dans les rejets de STEP - 2. Étude expérimentale des processus de sorption sur le charbon actif . TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2016, 3
10.1051/tsm/201603028
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Mailler, J. Gasperi, Y. Coquet, C. Derome, A. Buleté, et al.. Removal of emerging micropollutants from wastewater by activated carbon adsorption: Experimental study of different activated carbons and factors influencing the adsorption of micropollutants in wastewater. Journal of Environmental Chemical Engineering, 2016, 4 (1)
10.1016/j.jece.2016.01.018
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Mailler, J. Gasperi, Y. Coquet, A. Buleté, E. Vulliet, et al.. Removal of a wide range of emerging pollutants from wastewater treatment plant discharges by micro-grain activated carbon in fluidized bed as tertiary treatment at large pilot scale. Science of the Total Environment, 2016, 542
10.1016/j.scitotenv.2015.10.153
Johnny Gasperi, Adèle Bressy, Alain Rabier, Baptiste Casterot
Origines, concentrations et caractéristiques des micro polluants dans les eaux urbaines. Conférence ARCEAU « micropolluants présents dans les milieux aquatiques et leur impact sur la santé humaine - exemple de l’agglomération parisienne », ARCEAU, Nov 2016, Paris, France
Lahens Lisa, Rachid Dris, Emilie Strady, Johnny Gasperi, K Le Thuy Chung, et al.
Microplastic pollution in a tropical river impacted by a developing megacity. The Saigon River - Ho Chi Minh City, Vietnam.. SETAC Asia/Pacific Conference, Sep 2016, Singapour, Singapore
Steven Deshayes, Sifax Zedek, Véronique Eudes, Christine Droguet, Vincent Rocher, et al.
Devenir des micropolluants au sein des stations d’épuration : étude simultanée des filières eau et boue. 11e Congrès International du GRUTTEE, Feb 2016, Poitiers, France
Rachid Dris, Johnny Gasperi, Vincent Rocher, Bruno Tassin
Microplastics in various compartments of the urban water cycle. SETAC Europe 26th Annual Meeting, May 2016, Nantes, France
Johnny Gasperi, Rachid Dris, Vincent Rocher, Bruno Tassin
Microplastics in the continental area: an emerging challenge: Microplastiques en milieu continental : une problématique émergente. 2015, 2 p
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Mailler, J. Gasperi, Y. Coquet, S. Deshayes, S. Zedek, et al.. Study of a large scale powdered activated carbon pilot: Removals of a wide range of emerging and priority micropollutants from wastewater treatment plant effluents. Water Research, 2015, 72, pp.315-330
10.1016/j.watres.2014.10.047
Rachid Dris, Johnny Gasperi, Vincent Rocher, Saad Mohamed, Bruno Tassin
Microplastiques: sources et milieux récépteurs dans un contexte urbain. 94 éme congrés de l'Association Scientifique et Technique pour l’Eau et l’Environnement (ASTEE), Des villes et des territoires sobres et sûrs., Jun 2015, Montauban, France
Yves Coquet, Fabrice Nauleau, Johnny Gasperi, Romain Mailler, Olivier Rousselot, et al.
Traitement des polluants émergents dans les rejets de STEP - Etude du procédé CarboPlus® . 94ème congrès de l'ASTEE, ASTEE, Jun 2015, Montauban, France
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Dris, J. Gasperi, V. Rocher, M. Saad, Bruno Tassin. Premières investigations sur la contamination en microplastiques d’une zone urbaine. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2015, 12, pp.25-39
10.1051/tsm/201512025
Rachid Dris, Johnny Gasperi, Vincent Rocher, Saad Mohamed, Bruno Tassin
Microplastic contamination in an urban area: case of greater Paris. SETAC Europe 2015 (Society of Environmental Toxicology and Chemistry), May 2015, Barcelone, Spain
Romain Mailler, Johnny Gasperi, Yves Coquet, Steven Deshayes, Sifax Zedek, et al.
Removal of emerging micropollutants from wastewater discharges by powdered and micro-grain activated carbon - Progress of the CarboPlus® project. SETAC Europe 25th Annual Meeting, SETAC, May 2015, Barcelone, Spain
Steven Deshayes, Véronique Eudes, C
Droguet, Vincent Rocher, Johnny Gasperi, et al.. Fate of alkyphenols and phthalates within a wastewater treatment plant using biofiltration. 9th IWA Specialist Conference on Assessment and Control of Micropollutants and Hazardous Substances in Water, IWA, Nov 2015, Singapour, Singapore
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G. Bi, F. Monette, J. Gasperi. Analysis of the influence of rainfall variables on urban effluents concentrations and fluxes in wet weather. Journal of Hydrology, 2015, 523, pp.320-332
10.1016/j.jhydrol.2015.01.017
Rachid Dris, Johnny Gasperi, Vincent Rocher, Bounoua Byllel, Saad Mohamed, et al.
Microplastic in urban sources and receiving water within an urban area. ICCE 2015 (International Conference on Chemistry and the Environment)- LEIPZIG, Sep 2015, Leipzig, Germany
Régis Moilleron, Adèle Bressy, Johnny Gasperi, Darine Geara-Matta, Catherine Lorgeoux, et al.
Parabens and triclosan: from greywater to surface water at the Paris conurbation scale. 9th IWA Specialist Conference on Assessment and Control of Micropollutants and Hazardous Substances in Water, Nov 2015, Singapour, Singapore
Steven Deshayes, Véronique Eudes, Christine Droguet, Magali Bigourie, Johnny Gasperi, et al.
Alkylphenols and Phthalates in Greywater from Showers and Washing Machines. Water, Air, and Soil Pollution, 2015, 226 (11)
10.1007/s11270-015-2652-7
Johnny Gasperi, Rachid Dris, Cécile Mirande-Bret, Corinne Mandin, Valérie Langlois, et al.
First overview of microplastics in indoor and outdoor air. 15th EuCheMS International Conference on Chemistry and the Environment, Sep 2015, Leipzig, Germany
C Lorgeoux, R
Moilleron, Johnny Gasperi, S. Ayrault, P Bonté, et al.. Temporal trends of persistent organic pollutants in dated sediment cores: Chemical fingerprinting of the anthropogenic impacts in the Seine River basin, Paris.. Science of the Total Environment, 2015, 541, pp.1355-1363
10.1016/j.scitotenv.2015.09.147
Eustache Goore Bi, Frédéric Monette, Johnny Gasperi, Yves Perrodin
Assessment of the ecotoxicological risk of combined sewer overflows for an aquatic system using a coupled “substance and bioassay” approach. Environmental Science and Pollution Research, 2015, 22, pp.4460-4474
10.1007/s11356-014-3650-9
Vincent Rocher, Anniet M
Laverman, Johnny Gasperi, Sam Azimi, Sabrina Guérin, et al.. Nitrite accumulation during denitrification depends on the carbon quality and quantity in wastewater treatment with biofilters.. Environmental Science and Pollution Research, 2015, 22 (13), pp.10179-10188
10.1007/s11356-015-4196-1
Rachid Dris, Hannes Imhof, Wilfried Sanchez, Johnny Gasperi, François Galgani, et al.
Beyond the ocean: Contamination of freshwater ecosystems with (micro-) plastic particles. Environmental Chemistry, 2015, pp.32
10.1071/EN14172
Johnny Gasperi, Sophie Ayrault, Elodie Moreau-Guigon, Fabrice Alliot, Pierre Labadie, et al.
Contamination des sols franciliens par les éléments métalliques et les micropolluants organiques. Colloque PIREN - fin de phase 6, May 2015, Paris, France
Eustache Gooré Bi, Frédéric Monette, Philippe Gachon, Johnny Gasperi, Yves Perrodin
Quantitative and qualitative assessment of the impact of climate change on a combined sewer overflow and its receiving water body. Environmental Science and Pollution Research, 2015, 22 (15), pp.8
10.1007/s11356-015-4411-0
Rachid Dris, Johnny Gasperi, Vincent Rocher, Mohammed Saad, Nicolas Renault, et al.
Microplastic contamination in an urban area: a case study in Greater Paris. Environmental Chemistry, 2015, pp.2015
10.1071/EN14167
Romain Mailler, Johnny Gasperi, Dominique Steyer Patureau, Emmanuelle Vulliet, Steven Deshayes, et al.
Contamination of various types of Parisian sewage sludge by a wide range of priority and emerging micropollutants. 15th EuCheMS International Conference on Chemistry and the Environment, Sep 2015, Leipzig, Germany
Elodie Moreau-Guigon, Fabrice Alliot, Johnny Gasperi, Pierre Labadie, Caroline Simonnet-Laprade, et al.
Contamination de l'atmosphère par les composés perturbateurs endocriniens en Ile-de-France. Colloque PIREN-Seine, fin de phse 6, May 2015, Paris, France
Johnny Gasperi, C
Sebastian, V. Ruban, M. Delamain, S. Percot, et al.. Erratum to: Micropollutants in urban stormwater: occurrence, concentrations and atmospheric contributions for a wide range of contaminants in three French catchments.. 2014, pp.5282 - 5283
10.1007/s11356-014-2698-x
Johnny Gasperi, C
Sebastian, Véronique Ruban, M. Delamain, S. Percot, et al.. Micropollutants in urban stormwater: occurrence, concentrations, and atmospheric contributions for a wide range of contaminants in three French catchments. Environmental Science and Pollution Research, 2014, 21 (8), pp.5267-5281
10.1007/s11356-013-2396-0
Rachid Dris, Johnny Gasperi, Vincent Rocher, Bruno Tassin
Premières investigations de microplastiques en milieu urbain : cas de l’agglomération parisienne. GRUTTEE - Groupement de recherche universitaire sur les techniques de traitement et d'épuration des eaux, Oct 2014, Limoges, France
Johnny Gasperi, Christel Sebastian, Véronique Ruban, M
Delamain, S. Percot, et al.. Micropollutants in urban stormwater: occurrence, concentrations and atmospheric contributions for a wide range of contaminants in three French catchments. 13th International Conference on Urban Drainage, Sep 2014, Kuching, Malaysia. pp.USB cle
Elodie Moreau-Guigon, Johnny Gasperi, Fabrice Alliot, Marie-Jeanne Teil, P
Labadie, et al.. Dynamique de circulation des contaminants dans le continuum atmosphère – sol – rivière. Workshop 02/10 INTERZA - Micropolluants au sein des ZA : Mesures, traitements et changements de pratiques, Oct 2014, Strasbourg, France
Eustache Goore Bi, Frédéric Monette, Johnny Gasperi
Analysis of the influence of rainfall variables on urban effluents concentrations and fluxes in wet weather. 29th Eastern Canadian Symposium on Water Quality Research, Oct 2014, Quebec, Canada. pp.Numérique
Romain Mailler, Johnny Gasperi, Yves Coquet, Fabrice Nauleau, Olivier Rousselot, et al.
Traitement des eaux résiduaires urbaines par charbon actif en poudre - étude du procédé CarboPlus® pour les polluants prioritaires et émergents. Journées Information Eaux 2014, Apten; ENSI Poitiers, Nov 2014, Poitiers, France
Romain Mailler, Johnny Gasperi, Vincent Rocher, Yves Coquet, Cécile Cren-Olivé, et al.
Elimination des résidus médicamenteux dans les eaux résiduaires urbaines par charbon actif en poudre - Etude du procédé CarboPlus. 6ème Journées Doctorales en Hydrologie Urbaine, Jul 2014, Villeurbanne, France
Rachid Dris, Johnny Gasperi, Bruno Tassin
Assessing the microplastics in urban effluents and in the Seine River (Paris). Fate and impacts of microplastics in marine ecosystems, Jan 2014, Plouzané (Brest), France. 2014
Johnny Gasperi, Darine Geara, Catherine Lorgeoux, Adèle Bressy, Sifax Zedek, et al.
First assessment of triclosan, triclocarban and paraben mass loads at a very large regional scale: case of Paris conurbation (France).. Science of the Total Environment, 2014, 493, pp.854-61
10.1016/j.scitotenv.2014.06.079
Johnny Gasperi, Rachid Dris, Tiffany Bonin, Vincent Rocher, Bruno Tassin
Assessment of floating plastic debris in surface water along the Seine River.. Environmental Pollution, 2014, 195C, pp.163-166
10.1016/j.envpol.2014.09.001
Johnny Gasperi, Marie-Christine Gromaire, Régis Moilleron, Emilie Caupos, Gilles Varrault, et al.
Micropolluants dans les eaux pluviales et les eaux usées : de leur caractérisation à leur traitement. Workshop 02/10 INTERZA - Micropolluants au sein des ZA : Mesures, traitements et changements de pratiques, Oct 2014, Strabourg, France
Elodie Moreau-Guigon, Fabrice Alliot, Johnny Gasperi, Marie-Jeanne Teil, Martine Blanchard, et al.
A multi-residue method for analysis of various endocrine disruptors in ambient air: application to urban habitats. 38th International Symposium on Environmental Analytical Chemistry, Genève (Suisse), Jun 2014, Geneve, Switzerland
Mathieu Cladière, Céline Bonhomme, Lauriane Vilmin, Johnny Gasperi, Nicolas Flipo, et al.
Modelling the fate of nonylphenolic compounds in the Seine River -- part 1: Determination of in-situ attenuation rate constants. Science of the Total Environment, 2014, 468 -469, pp.1050-1058
10.1016/j.scitotenv.2013.09.028
Mathieu Cladière, Céline Bonhomme, Lauriane Vilmin, Johnny Gasperi, Nicolas Flipo, et al.
Modelling the fate of nonylphenolic compounds in the Seine River -- part 2: Assessing the impact of global change on daily concentrations. Science of the Total Environment, 2014, 468 - 469, pp.1059 - 1068
10.1016/j.scitotenv.2013.09.029
Romain Mailler, Johnny Gasperi, Yves Coquet, Cécile Cren-Olivé, Nathalie Cartiser, et al.
Treatment of pharmaceuticals by PAC: case study of a full-scale pilot at Seine Centre WWTP.. 13th IWA/IAHR International Conference on Urban Drainage 2014, Sep 2014, Sarawak, Malaysia
Romain Mailler, Johnny Gasperi, Yves Coquet, Cécile Cren-Olivé, Nathalie Cartiser, et al.
Removal of emerging micropollutants from WWTP discharges: is activated carbon suitable for wastewater application?. 7th International Conference on Environment Science and Technology, Jun 2014, Houston, United States
Rachid Dris, Johnny Gasperi, Vincent Rocher, Mohammed Saad, Bruno Tassin
Premières investigations sur la contamination en microplastiques dans une zone urbaine : cas de l'agglomération parisienne. 6émes journées doctorales en hydrologie urbaine, Jul 2014, Champs sur Marne, France
Romain Mailler, Johnny Gasperi, Ghassan Chebbo, Vincent Rocher
Priority and emerging pollutants in sewage sludge and fate during sludge treatment. Waste Management, 2014, 34 (7), pp.1217-1226
10.1016/j.wasman.2014.03.028
A
Bergé, J. Gasperi, V. Rocher, L. Gras, A. Coursimault, et al.. Phthalates and alkylphenols in industrial and domestic effluents: Case of Paris conurbation (France). Science of the Total Environment, 2014, 488-489 (1), pp.26-35
10.1016/j.scitotenv.2014.04.081
Mathieu Cladière, Céline Bonhomme, Lauriane Vilmin, Johnny Gasperi, Nicolas Flipo, et al.
Simulation du devenir des alkylphénols dans la Seine.. Colloque annuel du PIREN-Seine, Feb 2013, Paris, France
R
Moilleron, C. Lorgeoux, V. Ruban, Johnny Gasperi, C. Sebastian, et al.. Harmonisation des méthodes et procédures expérimentales. Colloque de clôture des programmes INOGEV et GDEP, Dec 2013, Nantes, France
Johnny Gasperi, C
Sebastian, V. Ruban, M. Delamain, S. Percot, et al.. Contamination en micropolluants des EP urbaines: synthèse des résultats des campagnes de mesures INOGEV. Colloque de clôture des programmes INOGEV et GDEP, Dec 2013, Nantes, France
Johnny Gasperi, Cécile Mirande-Bret, Ghassan Chebbo, Régis Moilleron, Mohamed Saad, et al.
"Micropolluants dans les eaux pluviales urbaines : concentrations, flux et contributions atmosphériques. Résultats des campagnes de mesure sur trois bassins versants", ANR INOGEV : Innovations pour une Gestion durable de l'Eau en Ville, Tâche 3, Rapport de sous-tâche. [Rapport de recherche] ANR Ville Durable. 2013
Romain Mailler, Johnny Gasperi, Vincent Rocher, Ghassan Chebbo
Removal of priority and emerging substances by biological and tertiary treatments. 13th edition of the World Wide Workshop for Young Environmental Scientists (WWW-YES-2013) - Urban waters: resource or risks?, Jun 2013, Arcueil, France
J
Gasperi, B. Laborie, V. Rocher. Traitement des rejets urbains de temps de pluie par clarifloculation : quelle efficacité vis-à-vis des micropolluants ?. Novatech 2013 - 8ème Conférence internationale sur les techniques et stratégies durables pour la gestion des eaux urbaines par temps de pluie / 8th International Conference on planning and technologies for sustainable management of Water in the City, Jun 2013, Lyon, France
Alexandre Bergé, Mathieu Cladière, Johnny Gasperi, Bruno Tassin, Régis Moilleron, et al.
Meta-analysis of environmental contamination by phtalates. 2013
Romain Mailler, Johnny Gasperi, V
Rocher, S. Gilbert-Pawlik, D. Geara-Matta, et al.. Biofiltration vs conventional activated sludge plants: what about priority and emerging pollutants removal?. Environmental Science and Pollution Research, 2013, epub ahead of print
10.1007/s11356-013-2388-0
E Moreau-Guigon, Johnny Gasperi, F Alliot, M Cladière, M Blanchard, et al.
Contamination par les perturbateurs endocriniens. Loumagne, C and Tallec, G. L'observation long terme en environnement, Quae, 2013
Mathieu Cladière, Johnny Gasperi, Catherine Lorgeoux, Céline Bonhomme, Vincent Rocher, et al.
Alkylphenolic compounds and bisphenol A contamination within a heavily urbanized area: case study of Paris.. Environmental Science and Pollution Research, 2013, 20 (5), pp.2973- 2983
10.1007/s11356-012-1220-6
Johnny Gasperi
Contaminants organiques en milieu urbain et dans les hydrosystèmes anthropisés. Sciences de l'environnement. Université Paris XII Val de Marne, 2013
Alexandre Bergé, Mathieu Cladière, Johnny Gasperi, Annie Coursimault, Bruno Tassin, et al.
Meta-analysis of environmental contamination by phthalates.. Environmental Science and Pollution Research, 2013, 20 (11), pp.8057-76
10.1007/s11356-013-1982-5
Elodie Moreau-Guigon, Johnny Gasperi, Fabrice Alliot, Mathieu Cladière, Martine Blanchard, et al.
Contamination de l'air par les contaminants organiques, bioindication et conséquences sur la contamination des sols. Colloque PIREN-Seine, Feb 2013, Paris, France. pp.11
A
Bergé, Johnny Gasperi, V. Rocher, L. Gras, A. Coursimault, et al.. Phthalates and alkylphenols in industrial effluents - Contribution to pollution transported in Paris sewer network. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2013, 11, pp.45-54
Johnny Gasperi, Bastien Laborie, Vincent Rocher
Treatment of combined sewer overflows by ballasted clarification: which pollutants are removed?. 8th International Conference NOVATECH, Jun 2013, Lyon, France. pp.Acte Novatech, acte numérique
Romain Mailler, Johnny Gasperi, Ghassan Chebbo, Vincent Rocher
Occurrence of micropollutants in final sludges and fate during treatment. 3rd BENELUX Young Water Professionals Conference, Oct 2013, Belval, Luxembourg. 2013
Mathieu Cladière, Lauriane Vilmin, Céline Bonhomme, Johnny Gasperi, Nicolas Flipo, et al.
Determination of in-situ biodegradation rate constants of nonylphenolic compounds in the Seine River. 14th EuCheMS International Conference on Chemistry and the Environment, Jun 2013, Barcelone, Spain. 2013
Mathieu Cladière, Céline Bonhomme, Lauriane Vilmin, Johnny Gasperi, Nicolas Flipo, et al.
Assessing the impact of global change on micropollutants in aquatic ecosystems: Modelling the fate of nonylphenolic compounds in the Seine River. 14th EuCheMS International Conference on Chemistry and the Environment, Jun 2013, Barcelone, Spain
Johnny Gasperi, F
Lucas, R. Moilleron, G. Varrault, Jean-Marie Mouchel, et al.. Pollutants in urban wastewater and quality of effluents: Methodologies applied during the OPUR research program [Contaminants dans les eaux résiduaires urbaines et qualité des rejets: Approches méthodologiques d'OPUR 3]. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2012, 4, pp.14
Johnny Gasperi, Bastien Laborie, Vincent Rocher
Treatment of combined sewer overflows by ballasted flocculation: Removal study of a large broad spectrum of pollutants. Chemical Engineering Journal, 2012, 211, pp.293-301
10.1016/j.cej.2012.09.025
Johnny Gasperi, Françoise Lucas, Régis Moilleron, Gilles Varrault, Jean-Marie Mouchel, et al.
Contaminants dans les eaux résiduaires urbaines et qualité des rejets: Approches méthodologiques d'OPUR 3. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2012, pp.14-20
Vincent Rocher, Catherine Paffoni, Alexandre Gonçalves, Sabrina Guérin, Sam Azimi, et al.
Municipal wastewater treatment by biofiltration: comparisons of various treatment layouts. Part 1: assessment of carbon and nitrogen removal.. Water Science and Technology, 2012, 65 (9), pp.1705-12
10.2166/wst.2012.105
M Cladière, C Lorgeoux, Johnny Gasperi, Céline Bonhomme, V Rocher, et al.
Flux des alkylphénols et du bisphénol A sur le bassin de la Seine : Premières estimations en Île-de-France. Colloque Piren-Seine, Feb 2012, Paris, France
A Bergé, Johnny Gasperi, V Rocher, A Coursimault, R Moilleron
Cycle journalier des phtalates et alkylphénols en région parisienne : cas de la station d’épuration de Seine Centre. 9ème Congrès International du GRUTTEE, Oct 2012, Aix en Provence, France
F
Lucas, Johnny Gasperi, Bruno J. Lemaire, Vincent Rocher, A. Goncalves, et al.. Impact de la décantation lamellaire accélérée sur la diversité bactérienne des eaux usées traitées par temps de pluie. ETEGE, Apr 2012, Aussois, France. 2012
Solène Gilbert, Johnny Gasperi, V
Rocher, Catherine Lorgeoux, Ghassan Chebbo. Removal of alkylphenols and polybromodiphenylethers by a biofiltration treatment plant during dry and wet-weather periods.. Water Science and Technology, 2012, 65 (9), pp.1591-8
10.2166/wst.2012.055
Johnny Gasperi, Mathieu Cladière, Sally Zgheib, Vincent Rocher, Régis Moilleron, et al.
Substances prioritaires dans les rejets urbains de temps de pluie: Cas du déversoir de Clichy. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2012, 4, pp.30-43
Régis Moilleron, Johnny Gasperi, Vincent Rocher, Ghassan Chebbo
Organic pollutants in urban sewer systems and fate in wastewater treatment plants. Workshop on Water and Urban Environment, Jun 2012, Lyon, France
Alexandre Bergé, Johnny Gasperi, Vincent Rocher, Annie Coursimault, Régis Moilleron
Phthalate and alkylphenol removal within wastewater treatment plants using physicochemical lamellar clarification and biofiltration. 11th International Conference on Water Pollution: Modelling, Monitoring and Management - Water Pollution XI,, Oct 2012, United Kingdom. pp.357-368
10.2495/WP120311
Alexandre Bergé, Johnny Gasperi, Vincent Rocher, Annie Coursimault, Régis Moilleron
Devenir des phtalates en milieu urbain: De l'égout au rejet de la station d'épuration. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2012, 4, pp.21-29
Johnny Gasperi, R Moilleron, G Chebbo
Priority pollutants in urban sewer system: contributions of “OPUR” research programme. UDM 9th International Conference on Urban Drainage Modelling, Sep 2012, Belgrade, Serbia
A
Bergé, Johnny Gasperi, V. Rocher, A. Coursimault, R. Moilleron. Occurrence and fate of phthalate in urban area: Case of Parisian sewer network and wastewater treatment plant [Devenir des phtalates en milieu urbain: De l'égout au rejet de la station d'épuration]. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2012, 4, pp.21
A Bergé, L Gras, G Chabance, V Rocher, Johnny Gasperi, et al.
Phtalates et alkylphénols dans les effluents industriels : contribution à la pollution véhiculée dans les réseaux d’'assainissement. 5èmes Journées Doctorales en Hydrologie Urbaine - JDHU 2012, Oct 2012, Strasbourg, France
Sophie Ayrault, Sabine Barles, Hélène Blanchoud, Enrique Barriuso, Johnny Gasperi, et al.
Contaminants en sols urbains : une revue. 11èmes Journées d’Etude des Sols, Mar 2012, Versailles, France. 2012
Johnny Gasperi, Sally Zgheib, Mathieu Cladière, Vincent Rocher, Régis Moilleron, et al.
Priority pollutants in urban stormwater: Part 2 - Case of combined sewers. Water Research, 2012, 46 (20), pp.6693-6703
10.1016/j.watres.2011.09.041
Alexandre Bergé, Mathieu Cladière, Johnny Gasperi, Annie Coursimault, Bruno Tassin, et al.
Meta-analysis of environmental contamination by alkylphenols.. Environmental Science and Pollution Research, 2012, 19 (9), pp.3798-819
10.1007/s11356-012-1094-7
Vincent Rocher, Johnny Gasperi, Sam Azimi, Solène Gilbert, Catherine Paffoni
Comportement des substances prioritaires sur les ouvrages de traitement des eaux usées : cas de la décantation et de la biofiltration. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2011, pp.13
Johnny Gasperi, Stéphane Garnaud, Vincent Rocher, Régis Moilleron
Priority substances in combined sewer overflows: Case study of the Paris sewer network. Water Science and Technology, 2011, pp.6
C
Sebastian, R. Moilleron, V. Ruban, S. Barraud, C. Lorgeoux, et al.. INOGEV project – an original French approach in micropollutant characterization assessment in urban wet weather effluents and atmospheric deposits. 12nd International Conference on Urban Drainage (ICUD), 2011, Porto Alegre, Brazil
Mathieu Cladière, Johnny Gasperi, Catherine Lorgeoux, Céline Bonhomme, Vincent Rocher, et al.
Bisphénol A : Premiers résultats sur le bassin de la Seine. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2011, pp.43-52
Solène Gilbert, Johnny Gasperi, Vincent Rocher, Catherine Lorgeoux, Ghassan Chebbo
Traitement des eaux usées de temps de pluie à la station seine centre: Étude des paramétres globaux, des alkylphénols et des polybromodiphényléthers. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2011, pp.8
Christel Sebastian, Régis Moilleron, Véronique Ruban, Stéphane Percot, S Barraud, et al.
INOGEV project: an original French approach in micropollutant characterization assessment in urban wet weather effluents and atmospheric deposits. International conference on urban drainage, Sep 2011, Porto Alegre, Brazil. 8p
Mathieu Cladière, Johnny Gasperi, Catherine Lorgeoux, Céline Bonhomme, Cécile Mirande-Bret, et al.
Urban cycle of alkylphenol and bisphenol a: the case of Paris.. 13th EuCheMS International Conference on Chemistry and the Environment (ICCE 2011), Sep 2011, Zurich, Switzerland
Johnny Gasperi, Mathieu Cladière, Vincent Rocher, R
Moilleron. Combined sewer overflows and EU Water Framework Directive.. SWITCH meeting, The Future of Urban Water: Solutions for Livable and Resilient Cities, Paris (France), janvier 2011., Jan 2011, Paris, France. pp.4
Mathieu Cladière, Johnny Gasperi, Catherine Lorgeoux, Bruno Tassin
Discharges of endocrine disrupting chemicals by combined sewer overflows into receiving water: case-study of the Paris conurbation. 11th edition of the World Wide Workshop for Young Environmental Scientists (WWW-YES-2011) - Urban Waters: resource or risks?, Jun 2011, Arcueil, France
J.M
Mouchel, M.J. Teil, H. Blanchard, F. Alliot, C. Bourges, et al.. Transfert de micropolluants par le ruissellement et le réseau d'assainissement. 2011
F
Eymery, J.M. Choubert, B. Lepot, J. Gasperi, J. Lachenal, et al.. Guide technique opérationnel : Pratiques d'échantillonnage et de conditionnement en vue de la recherche de micropolluants prioritaires et émergents en assainissement collectif et industriel. [Rapport de recherche] irstea. 2011, pp.85
Johnny Gasperi, E
Moreau, P. Labadie, M. Blamchard, M.J. Teil, et al.. Contamination de la Seine par les micropolluants organiques : Effet des conditions hydriques et de l'urbanisation. 2011
Solène Gilbert, Johnny Gasperi, Vincent Rocher, Catherine Lorgeoux, Ghassan Chebbo
Are wastewater treatment plants suitable to treat stormwater pollution? Case-study of an adjustable trickling filter plant.. 7th IWA specialist conference on assessment and control of micropollutants/hazardous substances in water, Jul 2011, Sydney, Australia. pp.9
C
Gounou, Gilles Varrault, K. Amedzro, Johnny Gasperi, R. Moilleron, et al.. Research of trace metals as markers of entry pathways in combined sewers.. Water Science and Technology, 2011, 63 (4), pp.633-40
10.2166/wst.2011.219
C
Lorgeoux, R. Moilleron, Johnny Gasperi, Bruno Tassin, S. Ayrault, et al.. Historique de la contamination des milieux: – cas de la Seine. Conférence, 2011, Lyon, France
Johnny Gasperi, S
Garnaud, V. Rocher, R. Moilleron. Polluants prioritaires dans les eaux de surface : qu'en est-il de la Seine à Paris ?. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2010, 11, pp.41
I
Lefèvre, P. Bonté, C. Priadi, L. Carbonaro-Lestel, J.M. Mouchel, et al.. Archives sédimentaires, témoignages de l'histoire du développement du bassin. [Rapport de recherche] PIREN-Seine. 2010
C
Lorgeoux, Johnny Gasperi, I. Djouarev, R. Moilleron, Bruno Tassin, et al.. Historical trends of PCBs, PAHs, PBDEs and alkylphénols in dated sediments from flood plains of the Seine River (France). The 11th European Meeting on Environmental Chemistry, 2010, Portoroz, Slovenia
S
Gilbert, Johnny Gasperi, V. Rocher, C. Lorgeoux, G. Chebbo. Removal of PBDE and alkylphenol in a trickling filter wastewater treatment plant during dry and wet weather periods. Proceeding of the 11th European Meeting on Environmental Chemistry, 2010, Portoroz, Slovenia
Sandrine Feydel, François Galgani, Michel Loubry, Johnny Gasperi, Cécile Ostria, et al.
Océans de plastique. 2010
Johnny Gasperi, Stéphane Garnaud, Vincent Rocher, Régis Moilleron
Polluants prioritaires dans les rejets urbains de temps de pluie : cas de la ville de Paris. Journées Franco-Brésiliennes en Hydrologie Urbaine, Paris, France. 2010
Mathieu Cladière, Johnny Gasperi, S
Gilbert, Catherine Lorgeoux, Bruno Tassin. Alkylphenol ethoxylates and bisphenol A in surface water within a heavily urbanized area, such as Paris. Marinov, A. M. ; Brebbia, C. A. Water Pollution X, Wit Press, pp.131-142, 2010, WIT Transactions on Ecology and the Environment, 978-1-84564-448-2
10.2495/wp100121
Bogdan Muresan, Catherine Lorgeoux, Johnny Gasperi, Régis Moilleron
Fate and spatial variations of polybrominated diphenyl ethers in the deposition within a heavily urbanized area: case of Paris (France). Water Science and Technology, 2010, 62 (4), pp.822-8
10.2166/wst.2010.931
M
Cladière, Johnny Gasperi, C. Lorgeoux, Bruno Tassin. Alkylphénols et bisphénol A dans le bassin de la Seine : Évolution des concentrations et des flux de Marnay à Poses. 2010
Johnny Gasperi, Marie-Christine Gromaire, M
Kafi-Benyahia, R. Moilleron, Ghassan Chebbo. Contributions of wastewater, runoff and sewer deposit erosion to wet weather pollutant loads in combined sewer systems.. Water Research, 2010, 44 (20), pp.5875-86
10.1016/j.watres.2010.07.008
M.J
Teil, F. Alliot, H. Blanchard, C. Bourges, M. Cladière, et al.. Transfert de composés perturbateurs endocriniens par le réseau d'assainissement et le réseau hydrographique à l'exutoire du bassin versant de l'Orge. 2010
S
Gilbert, Johnny Gasperi, V. Rocher, C. Lorgeoux, G. Chebbo. Are wastewater treatment plants suitable to treat stormwater pollution? Case-study of Seine-Centre plant. 6th International Conference on Sewer Processes and Networks, 2010, Surfers Paradise, Australia
Johnny Gasperi, Vincent Rocher, Solène Gilbert, Sam Azimi
Occurence and removal of priority pollutants by lamella clarification and biofiltration. Water Research, 2010, 44 (10), pp.3065-3076
10.1016/j.watres.2010.02.035
C
Lorgeoux, I. Djouarev, R. Moilleron, Johnny Gasperi, Bruno Tassin, et al.. Analyse historique de la contamination en polluants persistants (HAP, PCB, alkylphénols et PDBE) sur le bassin de la Seine. Colloque 2010 du PIREN-Seine, 2010, Paris, France
G
Chebbo, Marie-Christine Gromaire, Céline Bonhomme, Bernard de Gouvello, Johnny Gasperi, et al.. OPUR : l'observatoire des polluants urbains en Île de France. OPUR : l'observatoire des polluants urbains en Île de France, 2010, Nantes, France
Johnny Gasperi, C
Lorgeoux, R. Moilleron, Marie-Christine Gromaire, Ghassan Chebbo. Settling Velocity Grading of Particle Bound PAHs: Case of Wet Weather Flows within Combined Sewer Systems. JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 2009, 135 (11), pp.1155--1160
10.1061/(ASCE)0733-9372(2009)135:11(1155)
Pierre Labadie, Adeline Arini, Martine Blanchard, Adeline Bourgeault, Marc Chevreuil, et al.
Contamination du bassin versant de l'ORGE par les micropolluants et effets toxiques associés. Colloque PIREN-Seine 2009, Feb 2009, Paris, France
F
Lucas, L. Betelli, Johnny Gasperi, V. Rocher. Efficiency of chemically aided sedimentation for bacterial removal from wastewater. Swiss Microbial Ecology SME09, Jan 2009, Einsiedeln, Switzerland
Johnny Gasperi, S
Garnaud, V. Rocher, R. Moilleron. Priority pollutants in wastewaters and combined sewer overflows. Xenobiotics in the Urban Water Cycle, XENOWAC 2009, 2009, Paphos, Cyprus
Johnny Gasperi, V
Rocher, S. Azimi. Abattements des substances prioritaires par décantation et par biofiltration. Conférence, 2009, Nancy, France
Johnny Gasperi, S
Garnaud, V. Rocher, R. Moilleron. Priority substances in combined sewer overflows. Xenobiotics in the Urban Water Cycle XENOWAC 2009, 2009, Paphos, Cyprus. 5-6 p
M
Revitt, Johnny Gasperi, L. Scholes. The fate and behaviour of priority pollutants in end-of-pipe wastewater treatment plants. Xenobiotics in the Urban Water Cycle, XENOWAC 2009, 2009, Paphos, Cyprus
B
Muresan, C. Lorgeoux, Johnny Gasperi, R. Moilleron. Polybrominated diphenyl ethers cycling in the Paris Region, France. Xenobiotics in the Urban Water Cycle, XENOWAC 2009, 2009, Paphos, Cyprus
Johnny Gasperi, V
Rocher. Recherche élargie de micropolluants en STEP: retour d'expérience OPUR – SIAAP. OPUR – SIAAP, 2009, Romaiville, France
Johnny Gasperi, Stéphane Garnaud, Vincent Rocher, Régis Moilleron
Priority pollutants in surface waters and settleable particles within a densely urbanized area: case study of Paris (France).. Science of the Total Environment, 2009, 407 (8), pp.2900-8
10.1016/j.scitotenv.2009.01.024
Marc Chevreuil, Martine Blanchard, C Dargant, Cendrine Dargnat, Johnny Gasperi, et al.
La micropollution organique dans le bassin de la Seine, maîtriser l'impact des molécules créées par l'homme. Agence de l'eau Seine Normandie, 2009, Marc Chevreuil, 978-2-918251-08-8
M.J
Teil, F. Alliot, H. Blanchard, C. Bourges, C. Dargnat, et al.. Contamination de l'Orge et de la Seine par des micropolluants organiques : PBDE, phtalates, alkylphénols et HAP sous différentes conditions hydrologiques. 2009
Johnny Gasperi, S
Garnaud, V. Rocher, R. Moilleron. Polluants prioritaires dans les eaux de surface et les particules sédimentables : qu'en est-il de la Seine à Paris ?. Conference, 2009, Paris, France
Johnny Gasperi, Catherine Lorgeoux, Catherine Gourlay-Francé, Emmanuelle Kuhn, Régis Moilleron
Alkylphénols et Hydrocarbures Aromatiques Polycycliques dans les eaux du bassin de l'Orge Aval. Quantification et faisabilité du suivi de la contamination par échantillonnage passif. irstea. 2008, pp.18
Johnny Gasperi, F
Lucas. Efficacité épuratoire des filières de traitement des eaux résiduaires urbaines : aspects microbiologiques et physico-chimiques. Séminaire OPUR, 2008, Colombes, France
Johnny Gasperi, Stéphane Garnaud, Vincent Rocher, Régis Moilleron
Priority pollutants in wastewater and combined sewer overflow.. Science of the Total Environment, 2008, 407 (1), pp.263-72
10.1016/j.scitotenv.2008.08.015
Johnny Gasperi, V
Rocher, S. Garnaud, R. Moilleron. Priority pollutants within heavily urbanized area: what about receiving waters and settleable sediments?. 11th International Conference on Urban Drainage, 2008, Edinburgh, United Kingdom
K
Seriki, Johnny Gasperi, L. Castillo, L. Scholes, E. Eriksson, et al.. Priority pollutants behaviour in end of pipe wastewater treatment plants. 2008
Johnny Gasperi, M
Kafi-Benyahia, C. Lorgeoux, R. Moilleron, Marie-Christine Gromaire, et al.. Wastewater quality and pollutant loads in combined sewers during dry weather periods. Urban Water Journal, 2008, 5 (4), pp.305
Marie-Christine Gromaire, M
Kafi-Benyahia, Johnny Gasperi, M. Saad, R. Moilleron, et al.. Settling velocity of particulate pollutants from combined sewer wet weather discharges.. Water Science and Technology, 2008, 58 (12), pp.2453-65
10.2166/wst.2008.835
Johnny Gasperi, S
Garnaud, V. Rocher, R. Moilleron. Polluants prioritaires dans les eaux usées et les rejets urbains de temps de pluie. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2008, 11 (NC), pp.49
Johnny Gasperi, Catherine Lorgeoux, Catherine Gourlay-Francé, Emmanuelle Kuhn, Régis Moilleron
Alkylphénols et Hydrocarbures Aromatiques Polycycliques dans les eaux du bassin de l'Orge Aval. Quantification et faisabilité du suivi de la contamination par échantillonnage passif. PIREN SEINE. 2008
Mounira Kafi-Benyahia, Johnny Gasperi, R
Moilleron, Marie-Christine Gromaire, Ghassan Chebbo. Spatial variability of the characteristics of combined wet weather pollutant loads in Paris.. Water Research, 2008, 42 (3), pp.539-49
10.1016/j.watres.2007.08.008
L
Scholes, M.D. Revitt, Johnny Gasperi, E. Donner. Priority pollutant behaviour in stormwater Best Management Practices (BMPs). 2008
Johnny Gasperi, R
Moilleron, G. Chebbo. Pollution en hydrocarbures transitant par temps sec et par temps de pluie dans le réseau d'assainissement unitaire parisien. La Houille Blanche - Revue internationale de l'eau, 2007, 2007 (4), pp.85
Johnny Gasperi, V
Rocher, S. Azimi, R. Moilleron, G. Varrault, et al.. Hydrocarbures aliphatiques et aromatiques introduits dans le réseau d'assainissement via les effluents domestiques. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2007, 4 (NC), pp.77
Johnny Gasperi, V
Rocher, R. Moilleron, G. Chebbo. Review on the hydrocarbon fate within combined sewers: Case of the "Le Marais" urban catchment (1994-2005). Polycyclic Aromatic Compounds, 2007, 27 (2), pp.123
Johnny Gasperi, S
Garnaud, V. Rocher, R. Moilleron. Polluants prioritaires dans les eaux usées et les rejets urbains de temps de pluie : cas de Paris (France). 7e Congrès international du GRUTTEE, 2007, Pau, France
Johnny Gasperi, L
Sholes, M. Revitt. SCOREPP Programme:Priority pollutants behavior in end-of-pipe wastewater treatment plants. 2007
Johnny Gasperi, Régis Moilleron, Ghassan Chebbo
Aliphatic and polycyclic aromatic hydrocarbon loads within the Parisian combined sewer during dry and wet weather periods. La Houille Blanche - Revue internationale de l'eau, 2007, 4, pp.85--91
10.1051/lhb:2007051
Johnny Gasperi, R
Moilleron, G. Chebbo. Spatial variability of hydrocarbon loads in dry and wet weather flows in the Parisian combined sewer. 5th International Conference on Sewer Processes and Networks, 2007, Delft, Netherlands
Johnny Gasperi, R
Moilleron, Ghassan Chebbo. Spatial variability of polycyclic aromatic hydrocarbon load of urban wet weather pollution in combined sewers. Water Science and Technology, 2006, 54 (06-juil), pp.185--193
10.2166/wst.2006.576
Johnny Gasperi
Introduction and transfer of hydrocarbons on different spatial scales within the parisian combined sewer. Sciences of the Universe [physics]. Ecole des Ponts ParisTech, 2006. English
Johnny Gasperi, V Rocher, R
Moilleron, Ghassan Chebbo. Hydrocarbon loads from street cleaning practices: Comparison with dry and wet weather flows in a Parisian combined sewer system. Polycyclic Aromatic Compounds, 2005, 25 (2), pp.169--181
10.1080/10406630590930734
Johnny Gasperi, Vincent Rocher, Thierry Celaudon, Régis Moilleron, Ghassan Chebbo
Hydrocarbons and heavy metals fixed to the lift station sediment of the Paris combined sewer network.. Water Science and Technology, 2005, 52 (3), pp.119-27
Johnny Gasperi, R Moilleron, Ghassan Chebbo
Spatial variability of PAH load of urban wet weather pollution in the Parisian combined sewer. La Houille Blanche - Revue internationale de l'eau, 2005, 5, pp.35--40
V
Rocher, Johnny Gasperi, S Azimi, T Celaudon, R. Moilleron, et al.. Hydrocarbons and heavy metals fixed to the lift station sediments of the Paris agglomeration. La Houille Blanche - Revue internationale de l'eau, 2004, 2, pp.22--30
10.1051/lhb:200402001

Pierre


pierre rss

HAL : Dernières publications

  • [hal-04598493] Road force sensor for vehicle grip estimation and road monitoring devices verification

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  • [hal-04506092] Méthodologie de calibration d'un modèle multimodal des déplacements pour l'évaluation des externalités environnementales avec preuve de concept

    Les contributions de ce livrable sont : 1. un état de l'art sur l'utilisation des système multi-agents pour l'évaluation environnementale sur deux critères~ l'exposition au bruit et la pollution de l'air ; 2. la description de la méthodologie du pipeline Eqasim appliquée aux données disponibles pour la métropole de Nantes ; 3. les premiers résultats de simulation obtenu pour l'évaluation environnementale de la ligne Nantes Carquefou sous la forme d'une preuve de concept.

  • [hal-04443365] comparative wind influence on use phase energy consumptions of roads and railways

    Sustainable development is largely depending on transportation systems ensuring mobility and safety. This mobility requires a sufficient access to the energy, at an affordable price. According to the peak-oil hypothesis, rarefaction and increasing in price of the non-renewable energies are nevertheless expected. Even if transportations systems could partly rely on renewable energies, their optimization should involve energy and mobility criteria. In this study, surrounding wind fields and traveling speed are conjointly investigated in order to evaluate achievable reductions in fuel consumptions for both railways and road transportation systems. In the first part of this work, aerodynamic forces on trains are evaluated with the help of an energy model, validated with experimental tests data. For that, numerical determination of aerodynamic coefficients for several wind and topological situations have been computed with Solid-Works and associated to atmospheric characteristics determined over the considered high-speed line (Rhine-Rhone line; about 140 km) with the AROME model (meteo-france), from measurements at several weather stations. Simulation results show that for a weak wind and a train traveling at high speed, wind influence is about 5% on aerodynamic forces power. Moreover, for a moderate train speed (about 45 m/s), a slightly stronger wind (about 5 m/s) has an influence of about 30%, compared to the without wind case. In a second time, road experiments have been conducted with a passenger car equipped with an air flow meter and an oil flow meter, in addition of dynamical measurements as speed, position, altitude... Similarly to the railway case, wind exposition could be considered as a significant road design parameter. In conclusion, this work based on large sets of full-scale experimental data and the numerical simulation of the aerodynamic forces, points out that wind influence on total aerodynamic power consumption is noticeable, both for railways or road transportation systems.

  • [hal-04443418] Contribution of simplified vehicle dynamic models to road safety analysis

    The skid resistance analysis is one part of the complex process which is involved in road safety analysis for a road project or for road maintenance. As early as the design phase, the road geometry choice is linked to the skid resistance for a given level of service. In the road maintenance case, different conventional measurements are performed on the road and by analyzing them together, risks can be enlightened. Currently, this analysis is done by comparing these data. This is time consuming and requires dedicated skills. The final objective of our work is to simplify this procedure by developing a software with models of vehicle, digitalized roads, tires, water height and other parameters. With this software, it will be possible to simulate different vehicles on a given road in order to evaluate if the skid resistance supplied by the road meets its demands of the traffic. The key of this development is to assess the prediction capacities of the models. In this paper, a first step in this evaluation process is presented. It consists in a comparison between the skid resistance predicted by simplified vehicle dynamic models, by a reference commercial model and the actual skid resistance measured on a real vehicle taking a curve at high speed. These experiments took place on our test track at Nantes with our fully instrumented car. This study is oriented towards road manager needs which are to know if these dynamic models can improve their analysis. The chosen models have to be versatile enough in order to take into consideration the road characteristics. The objective is not to predict a crash for a given car but to detect a possible source of crash for a class of vehicle due to improper road characteristics. First results show the interest of intermediate models for road manager needs, between the point and commercial model. Their advantages are mainly to be more realistic than the point model and to require less information than commercial software.

  • [hal-04443407] Road safety contribution by evaluation of tire crushing using a measuring hub

    The aim of this study is to improve road safety by analyzing road influence on vehicle stability. Nowadays, vehicle stability is enhanced by electronic systems. It can be expected that, in a near future, stability systems will rely on complete vehicle dynamics models. This means measuring, on each axle, the forces and deformations of-especially-tires and suspensions. In that perspective, the contact forces can be obtained by using dynamometrical wheels or load bearing sensors (SKF-TNO), which are likely to become available at a sufficiently low cost. For the deformation concern, we can think of lots of possibilities to gauge the suspension parts, but, at the present time, the tire vertical deformation remains difficult to acquire. Although different techniques exist to determine the tire crushing, the most popular consists in measuring the distance between a laser sensor fitted on a wheel and the corresponding local road surface. Nevertheless, this kind of sensor is expensive, difficult to adapt on standard cars and its measurements are highly influenced by the road texture state (water depth, markings ...). The whole new idea is that, assuming the availability of bearing load sensors on a vehicle for force measurement, tire height could be evaluated without any additional equipment by measuring torques and forces applicated to this wheel. So, we propose to evaluate the effectiveness of equivalence between the tensor components and optical crushing measurements. Experiments have been worked out at various speeds and curves. These experiments tend to show that the longitudinal torque and lateral force at the wheel center can be used to determine the wheel radius in the maximum loaded phases. Dynamometrical measurements present the possibility to be used under extreme weather conditions, for particular road texture contrary to optic techniques and at an expected affordable cost in a near future. More deepened studies will be launched to estimate the influence of tire structure, road curvature, evenness and texture on the proposed methodology.

  • [hal-04442024] Management of road speed sectioning to lower vehicle energy consumption

    Efforts to limit climate change should concern the transportation sector which is responsible for roughly a quarter of greenhouse gas emissions. Aside from vehicle’s technical progress and driver eco-driving awareness, road infrastructure has a role to play in this environmental aim. At the project stage, the design of roads can avoid energy losses linked to marked ramps, but afterwards, during the use phase, road management can be a lever too. In this use phase framework, our paper is focused on energy saving that can be achieved by managing speed sectioning. The key point is to ensure consistency between vehicle dynamics, road longitudinal profile and speed policy. Indeed, eco-driving could be impeded if a limiting speed sign is encountered on a steep slope or in a sharp turn. In such a situation the speed sign will be qualified as misplaced. Mechanical braking has then to be used instead of simple natural deceleration. In 2018 the French government lowered authorized speed on secondary roads, from 90 to 80 km/h, with road safety as the primary motivation. In order to assess energy impact of speed-sectioning for these two speed limits, experiments have been carried out in four experimental sites. Furthermore criterion and dissipated energy computation have been developed. The developed energy computation yields to determine the expected fuel economy for the entire traffic over a day on a selected route or network. As a result, over consumption for a misplaced speed sign can reach up to 40 liters of fuel per day with an approaching speed of 80 km/h and 50 liters of fuel per day with an approaching speed of 90 km/h according to traffic data. Significant energy savings could therefore be achieved by sign placement optimization.

  • [hal-04416930] A full factorial sensitivity analysis for a capacitated Flex-Route Transit system

    Popularity has increased for semi-flexible transit systems because they combine the flexibility of a Demand Responsive Transit with the affordable fare of Conventional Public Transport. In this study, we investigate a Flex-Route Transit: a shuttle performs several trips in a pre-defined service area; it follows a main route between origin and destination terminals and must pass through some mandatory checkpoints along this route. Between any consecutive checkpoints, an available slack time is available for shuttles to deviate from the main route to pick-up and drop-off customers. We implement a Mixed-Integer Linear Programming formulation from the literature with an added shuttle capacity constraint. We use it to perform a sensitivity analysis of the system using a full factorial experimental design over three parameters, namely: shuttle capacity, level of demand and available slack time. The combined influence of the parameters is analyzed using the method called Analysis of Variance.

  • [hal-04411562] Individual-level activity-based modeling and indicators for assessing construction sites noise exposure in urban areas

    Construction site noise significantly contributes to urban noise pollution. To accurately assess the noise exposure from urban construction sites, it is essential to consider the variability and dynamic nature of the urban context. This paper proposes an innovative approach using individual-level activity-based modeling to tackle the given challenge. The methodology introduced encompasses: the modeling of construction site noise emission sources, individual-level activity-based modeling of zone of influences, a modeling chain for assessing individual noise exposure levels, and a novel dedicated exposure indicator. To illustrate the relevance of our methodology, a case study is conducted in Champigny-sur-Marne, France; this study involves the generation of a synthetic population of 1,344,394 individuals distributed among 591,153 households, with 4,854,597 associated activities, using the Eqasim simulation framework. A traffic model is then established using the multi-agent transport simulation software MATSim. NoiseModelling software is employed to compute noise maps both with and without the construction site. Subsequently, the noise exposure for each individual is assessed throughout the day for both configurations. Thanks to this complete modeling chain, the proposed indicator quantifying the cumulative amount of time of exposure above a given threshold can be compute, with the case study result being estimated at more than 3,300 person.quarter-hours above 65 dB(A).

  • [hal-04114226] Allocating synthetic population to a finer spatial scale: An integer quadratic programming formulation

    Agent-Based Models (ABMs) are being increasingly used to evaluate urban systems, urban policies and environmental impacts. One prerequisite for using the ABM framework consists of generating a synthetic population representative of the actual population, featuring the appropriate attributes with respect to model objectives. A precise spatial positioning of the synthetic population agents is often key to ensuring ABM modeling quality. This paper considers the problem of allocating synthetic population agents to a finer spatial scale. Such an allocation process is performed from a higher-level statistical area where a synthetic population can be generated, that is, a container statistical area (CSA), to several nested non-overlapping elementary statistical areas (ESAs), where only marginals are available. This allocation step relies not only on common attributes between CSA and ESA, but also on additional discriminatory attributes, that is, attributes of interest, estimated from external data sources. The case study examined herein is based on French census and fiscal data. Common attributes include eight socio-demographic variables, totaling 17 modalities. An additional attribute of interest, that is, income, has also been added. The allocation problem at hand is modeled as an integer quadratic programming problem. An exact algorithm is first applied to solve the problem; the applicability of this algorithm proves to be limited to small-size synthetic populations. A heuristic is proposed to handle the allocation of larger-size synthetic populations. Tests carried out on the case study show that this heuristic yields near-optimal solutions; it is also computationally efficient and may fulfill the needs of a majority of users.

  • [hal-04321599] A survey of Flex-Route Transit problem and its link with Vehicle Routing Problem

    Flexible transport systems such as Demand Responsive Transit (DRT) are becoming more and more popular over the last few years due to their convenience for customers. However, this convenience comes at a price. Transport authorities are currently looking for ways to improve service flexibility of Conventional Public Transport (CPT), which is undoubtedly cheaper than DRT. This justifies the need for Flex-Route Transit (FRT), which combines the flexibility of DRT and the low cost of CPT. This paper surveys research developments on FRT, as a promising alternative mode of public transport. Based on this survey, we discuss current research gaps that may be filled to increase FRT applicability. Moreover, we show how literature on classic Operations Research problems is of help to do so. In particular, we study similarities and differences between FRT and Vehicle Routing Problem, and specifically with one of its variant named Dial-a-Ride Problem. The analysis illustrates promising techniques that may be of use for solving FRT.

  • [hal-04312243] Modeling Exposure to Mobility-Related Pollution: Review and Key Challenges

    The health and equity issues related to urban pollution, coupled with the need to assess the consequences of implementing transport policies or new mobility solutions, make it imperative to provide decision-makers with a relevant modeling framework. The coupling of activity-based travel models with environmental models presents a promising approach to thoroughly investigate the interconnected issues related to the impact of road traffic on individual exposure to noise and air pollution. Integrated modeling chains provide a robust framework to comprehensively assess traffic scenarios on a city scale and address issues related to environmental inequalities. This article reviews the recent work in this field to identify both the main contributions and key challenges still to be addressed. It illustrates how the use of a dynamic approach, which considers the intraday dynamics of individual mobilities and pollution concentrations, can contribute to more accurate estimates of the exposure of individuals to pollutants. This modeling approach also has the potential to investigate how the level of exposure depends on the characteristics of the individuals (socioeconomic factors, commuting patterns, location of residence, and main activities). Nonetheless, there are still important challenges to overcome to further enhance the accuracy and applicability of these models: taking into account all types of traffic and transport modes; refining the modeling of exposure to pollution during travel; taking better consideration of microenvironments; and so forth.

  • [hal-04312241] Experimental assessment of wind influence on high-speed train energy consumptions

    Ifsttar and RFF have developed an energy model of high-speed trains in order to determine the influence of infrastructure geometry and environment on train power consumptions. Validation of this model is based on full scale tests performed for the Rhine-Rhone high-speed line acceptance of work (in 2011). This paper aims to evaluate if wind influence is a relevant parameter for the model. This involves numerical determination of aerodynamic coefficients for various wind and ground configurations and their use for the calculation of the aerodynamic efforts. Atmospheric characteristics are extrapolated from meteorological measurements thanks to the AROME numerical model, over the whole Rhine-Rhone line. Most remarkable results show for a moderate train speed (about 47 m/s), a rearward oriented wind of only 5,5 m/s lowers by 30% the power due to aerodynamic forces applied on the train, or raises it similarly if it is forwardly oriented. In conclusion, this work points out that wind influence is of first importance for computing energy consumption.

  • [hal-04312233] Influence of railway gradient on energy efficiency of high speed train

    In the context of reducing the global energy consumptions in transport systems, railways offer many advantages. Therefore the construction of new high speed railways has been planned. This article assesses the impact of the gradient of the railway on the train energy efficiency. This key parameter has a direct influence on the construction and operation phases energy amounts, since low gradients could require considerable civil engineering works. The energy model of the railway operation phase presented in this paper takes into account the infrastructure geometry, the train characteristics and the speed profiles. It is applied to different generic cases in order to illustrate the impact of the infrastructure gradients. The corresponding trajectories are compared from an energy efficiency point of view. Results show that the gradient is not the only one element to take into account. The associated length of ramp or slope is crucial too. For example, it is shown that short section with an important gradient can require less operation energy than lower gradient on longer distances. It is therefore possible to determine a couple of slope/ramp length and gradient for a given rolling stock which contributes to the minimization of the global construction cost and of the operating energy consumption.

  • [hal-04298022] The Use of FTIR Spectroscopy as a Tool for the Seasonal Variation Analysis and for the Quality Control of Polysaccharides from Seaweeds

    Macroalgae are a potentially novel source of nutrition and biologically active molecules. Proliferative species such as Eucheuma denticulatum, Solieria chordalis (red algae) and Sargassum muticum (brown alga) constitute a huge biomass that can be exploited. In this study, we focus on the extraction of polysaccharides from these three macroalgae species and the characterization of cell wall polysaccharides such as carrageenans, fucoidans and alginates by Fourier Transform Infrared spectroscopy with Attenuated Reflectance Module (FTIR-ATR). The comparison of purified extracts with commercial solutions of fucoidans, alginates or carrageenans shows a strong similarity between the spectra. It demonstrates that the methods of extraction that have been used are also suitable purifying technics. Moreover, it validates infrared spectroscopy as a quick, simple and non-destructive method for the accurate analysis of polysaccharides. The FTIR technique applied to samples collected at different periods of the year allowed us to highlight differences in the composition of fucoidans, alginates and carrageenans. Different classes corresponding to the season can be distinguished by statistical multidimensionnal analysis (Principal Component Analysis) showing that the structure of algal polysaccharides, related to bioactivity, depends on the period of harvest. FTIR results showed that S. chordalis and E. denticulatum possess a dominant type of carrageenan called iota-carrageenan. This type of carrageenan is in the majority when the alga is at maturity in its development cycle. During its growth phase, iota-carrageenan precursors can be detected by FTIR spectra, enabling a better control of the extraction and an application of these compounds in various economic sectors. When the alga E. denticulatum is in its juvenile stage, we found traces of kappa-carrageenan and nu-carrageenan polysaccharides in some extracts.

  • [hal-02469476] Fractionation of fish protein hydrolysates by ultrafiltration and nanofiltration: impact on peptidic populations

    The production by enzymatic treatment of fish protein hydrolysates (FPH) is a promising route to add value to fisheries proteinic co-products (fish frames, heads etc.). Indeed, FPH possess good nutritional properties and biological activities for food and feed uses. Pressure-driven membrane separations such as ultrafiltration (UF) and nanofiltration (NF) can be used after the hydrolysis to increase the specific activities of the FPH. This paper discusses the impact of a two-step UF/NF process producing four different fractions on two industrial FPH with different hydrolysis degrees. Fractionation is carried out in “realistic” conditions for an industrial process, on highly concentrated FPH solutions (about 100 g of dry matter/L) at a high volume reduction factor. For each step, UF or NF, the variation of the permeation flux in the course of the fractionation is discussed according to the FPH hydrolysis degree and the membranes cut-offs. The values of performance indicators defined in terms of nitrogen content are also examined, including the concentration factor (CF), the relative recovery in the retentate (ηR) and the mean and final retention factors (RFm and RFf). Computed values of these indicators are validated through the setting of volume and mass balances around each step. The impact of fractionation on the FPH peptidic population is shown. Peptidic populations are described in terms of chromatographic profiles (SEC–FPLC). The UF fractionation produces a permeate enriched with respect to the FPH smaller than a molecular weight of about 600–750 Dalton, and a retentate enriched in large peptides (above the same MW). A similar behaviour is found for the NF fractionation. Comparing the impact of the UF fractionation on the two hydrolysates allows to conclude that the membrane cut-off is well-suited when comprised between the MWs of the biggest and the most abundant peptides in the FPH.

  • [hal-01614736] Seasonal Variation of Sargassum Muticum Biochemical Composition Determined by Fourier Transform Infra-Red Spectroscopy

    Proliferation of the introduced brown macro alga Sargassum muticum is known as a natural and hard to control phenomenon occurring along the Atlantic coasts. The phenomenon causes serious troubles for local ecosystems including the alteration of ecosystem structure, the reduction in indigenous biodiversity and economic losses (tourism, aquaculture). However, despite the serious troubles caused by S. muticum, this species contains highly remarkable bioactive metabolites. This macro alga is at present under-exploited and the valorization of its metabolites to give a positive value to this seaweed could be a solution of ecosystemic service. Biorefinery process could be one solution to valorize S. muticum. Comprehensive knowledge concerning the biochemical composition of S. muticum and the impact of environmental factors, particularly seasons, on its composition is a prerequisite before its valorization. In this study, the biochemical composition of S. muticum was evaluated by using classic colorimetric methods based on chemical analysis and Fourier Transform Infra-Red spectrometry (FTIR), and was used as a rapid and safe method that could bring advantages in screening studies and a more comprehensive management and use of seaweed products. Our results are globally in accordance, notably for phenolic compounds, showing the relevance of the use of infrared spectrometry. Moreover, based on the absorption bands of some specific and valuable compounds shown by FTIR, there was a seasonal variation in the polysaccharides, i.e., uronic acids and sulphated compounds, together with phenolic contents of S. muticum.

  • [hal-04030611] Enhancement of Vehicle Eco-Driving Applicability through Road Infrastructure Design and Exploitation

    Energy moderation of the road transportation sector is required to limit climate change and to preserve resources. This work is focused on the moderation of vehicle consumption by optimizing the speed policy along an itinerary while taking into account vehicle dynamics, driver visibility and the road's longitudinal profile. First, a criterion is proposed in order to detect speed policies that are impeding drivers' eco-driving ability. Then, an energy evaluation is carried out and an optimization is proposed. A numerical application is performed on a speed limiting point with 20 usage cases and 5 longitudinal slope values. In the hypothesis of a longitudinal slope of zero, energy savings of 27.7 liter per day could be realized by a speed sign displacement of only 153.6 m. Potential energy savings can increase to up to 308.4 L per day for a −4% slope case, or up to 70.5 L per day for an ordinary −2% slope, with a sign displacement of only 391.5 m. This results in a total of 771,975 L of fuel savings over a 30 year infrastructure life cycle period. Therefore a methodology has been developed to help road managers optimize their speed policies with the aim of moderating vehicle consumption.

  • [hal-03562604] A new framework for Mobility Allowance Shuttle Transit (MAST)

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  • [hal-03544169] Mixed-Integer Linear Programming (MILP) formulation for a Mobility Allowance Shuttle Transit (MAST)

    The Mobility Allowance Shuttle Transit (MAST) system is a type of public transportation where vehicles may deviate from a fixed route to serve clients who wish to get on or off within a service area. In this area, the system provides an on-demand service. We use Mixed-Integer Linear Programming to tackle the MAST system and consider often neglected realistic constraints, as those linked to vehicle capacity and fleet availability. We perform a sensitivity analysis to understand how the system performance varies as a result of changing client priorities.

  • [hal-01346110] Valorization of the macroalga Sargassum muticum by enzymatic hydrolysis. Interest of surfactants to improve the extraction of phlorotannins and polysaccharides

    [...]

  • [hal-03326458] Simulation d'une population synthétique : méthodologie et cas d'application sur Nantes SNCF TER Mobilités Pays de la Loire - Ifsttar / Livrable 2

    Ce rapport est le deuxième rapport prévu au sein de ce contrat, écrit par l'équipe universitaire à destination de la SNCF dans le cadre de la convention de co-encadrement SNCF/UniversitéGustaveEiffel (anciennement Ifsttar) accompagne cette thèse (No Ifsttar : RP1-E19045) sous la responsabilité scientifique de Jean Calio, expert Data, Mobilité et Territoires et Développement Durable de la SNCF et de Pierre-Olivier Vandanjon.

  • [hal-03322463] Slope Optimisation (Sloop): Tailor-made optimisation for road longitudinal profile ecodesign considering the dynamic of vehicles

    The current transport system is not sustainable because of its high consumption of finite resources (mainly oil) and its impact on the environment (air quality, global warming, etc.). The design phase of the transport infrastructure has to be reconsidered in order to take into account these environmental burdens. Very recently, a methodology called Sloop (Slope Optimization) has been proposed to optimize the road longitudinal profile according to either an energy consumption or a Global Warming Potential (GWP) criterion calculated for construction and use phases. However, this optimization requires a high computation effort. It is a severe limitation to deploy this application to significant road project . The purpose of this paper is to propose a tailor-made optimization process which improves significantly this methodology. For the construction phase assessment, the methodology is based on a model of earthworks which computes the differences of geometry between the natural terrain and the road longitudinal profile. The use phase is assessed by simulating the traffic. Traffic simulations are based on vehicle dynamic models validated with real experiments. Starting from an initial longitudinal profile proposed by road designers, our algorithm finds a better profile in terms of Energy or GWP. The degrees of freedom of the optimization problem are mainly the road slopes and secondly the radii of the circles which connect them. The main constrain is the connection of the profile with the existing road. The optimization is complex due to the important number of degrees of freedom and the computation cost of the use phase assessment. It is the reason why, we developed a specific algorithm based on the Sequential Quadratic Programming Method (SQP) with suited computations of the linear approximation.

  • [hal-03081371] Slope Optimization (or "Sloop"): Customized Optimization for Road Longitudinal Profile Eco-Design

    Current transportation systems contributed to one quarter to the Greenhouse Gases (GhG) emissions and the mobility demand increases continuously. The transportation infrastructure design has to be optimized to mitigate these emissions. The methodology ?Sloop? (acronym for Slope Optimization) has recently been set up to optimize the longitudinal road profile with respect to a Global Warming Potential (GWP) criterion calculated for both the construction and operational phases while incorporating accurate vehicle models. This paper proposes a customized optimization strategy that significantly improves the Sloop methodology. From an initial longitudinal profile generated by road designers, our algorithm identifies the optimized profile in terms of GWP. This optimization step is complex due to the large number of degrees of freedom, along with various constraints to obtaining a feasible solution and the computational cost of the operational phase assessment. The most stringent constraint entails connecting the profile with the existing road (i.e., a constraint on the final profile altitude). We have developed a specific algorithm based on the Sequential Quadratic Programming (SQP) method; this algorithm takes into account the quasi-quadratic nature of the constraint on the final altitude. In a real case study, our algorithm outputs a profile whose GWP assessment saves 4% compared to the GWP assessment of the initial profile. The benefit of our specific protocol for treating the final altitude constraint is demonstrated in this example. By means of this new efficient and open-box algorithm, profile evolution at each iteration is analyzed to determine the most sensitive degrees of freedom, and the sensitivity of the optimization with respect to the main construction parameters and traffic assumptions are conducted. The results are consistent and stable.

  • [hal-02837894] Protéines végétales et animales

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  • [hal-02469764] Mild processing techniques and development of functional marine protein and peptide ingredients

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  • [hal-02469451] Application of Response Surface Methodology to Optimise the Antioxydant Activity of a Saithe (Pollachus Virens) Hydrolysate

    The objective of this study was to produce, by an enzymatic hydrolysis process at a pilot scale, a saithe (Pollachius virens) hydrolysate with a high antioxidant activity. Design of experiment methodology, based on laboratory-scale experiments, was used to obtain a behavioral reduced model that allows one to determine the optimal operating conditions maximizing the antioxidant activity. Two specifications were studied: the degree of hydrolysis and the antioxidant activity. The effects of the following hydrolysis parameters (temperature, pH, enzyme concentration, and operating time) were studied and presented as response surfaces. From these results, a multifactorial optimization was performed and the Pareto optimal set of efficient solutions was evaluated. The optimal conditions were tested at laboratory scale and then validated by comparison with tests carried out on a pilot plant.

  • [hal-02469398] Performances of ultrafiltration membranes for fractionating a fish protein hydrolysate: Application to the refining of bioactive peptidic fractions

    Ultrafiltration membranes can be advantageously used to improve the bioactivity of a saithe protein hydrolysate containing peptides having a size lower than 7 kDa, by fractionating or concentrating some specific molecular weight peptide classes. The aim of this study is to evaluate the behaviour of a 4 kDa membrane in modified polyethersulfone in conditions close to industrial exploitation. This work consists in evaluating the effect of the initial peptide content (30, 90 and 150 mg/mL), the transmembrane pressure (10 and 30 bar), in total recycling modes and the volume reduction factor (until 5) on membrane performances, in terms of permeation flux and selectivity. The peptide content and mass repartition profiles are measured by size exclusion chromatography.It is observed that the pressure and the peptide content, which can act as complementary or antagonist factors, can be adjusted to modify the transmission of peptides and consequently the apparent molecular weight cut-off (MWCO) of the membrane. These results have been directly applied to study the refining of a peptidic fraction lower than 1 kDa having a potential bioactivity (i.e. antioxidant and hypotensive). The change in refining performances with the volume reduction factor (VRF) are discussed, including the recovery yield and the purity of the interesting fraction in permeate and the energy requirements.

  • [hal-02336441] Influence de la saisonnalité sur la composition biochimique de Sargassum muticum, estimée par spectrométrie Infra-Rouge.

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  • [hal-02336264] Determination of the biochemical composition of proliferative macroalgae by IR spectrometry.

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  • [hal-02115032] Total phenolic content and biological activities of enzymatic extracts from Sargassum muticum (Yendo) Fensholt

    Seaweeds are potentially excellent sources of bio- active metabolites that could represent useful leads in the de- velopment of new functional ingredients in pharmaceutical and cosmetic industries. In the last decade, new marine bioprocess technologies have allowed the isolation of sub- stances with biological properties. The brown alga Sargassum muticum (Yendo) Fensholt (Ochrophyta) was en- zymatically hydrolyzed to prepare water-soluble extracts by using six different commercially available carbohydrate- degrading enzymes and two proteases. Evaluation of 2,2- diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antiox- idant power (FRAP) antioxidant, tyrosinase, elastase, and bio- film inhibition, antibacterial and antiviral activities as well as evaluation of cytotoxicity were realized for each extract. Total phenolic content was measured for extract characterization, and solid-phase extraction was useful to purify the enzymatic extract. Soluble total phenolic content of S. muticum Viscozyme extract was highest with 6.4% of dry weight. Enzymatic Celluclast and Viscozyme extracts had the lowest value of DPPH IC50 indicating a strong antiradical activity, 0.6 mg mL−1, in comparison with other enzymes. The ferric reducing antioxidant power ranged between 48.7 μM Fe 2+ Eq, digested with Viscozyme, and 60.8 μM Fe 2+ Eq, digested with Amyloglucosidase. Tyrosinase inhibition activity of S. muticum Neutrase extract was 41.3% higher compared to other enzymes. Elastase inhibition activity of S. muticum Shearzyme extract had highest activity (32.8%). All enzymat- ic extracts showed no cytotoxic effect towards the kidney Vero cells. Meanwhile, only S. muticum Neutrase and Alcalase ex- tracts exhibited potential antiviral activity. In addition, S. muticum Viscozyme and Shearzyme extracts showed prom- ising activity in suppressing the biofilm formation against Pseudomonas aeruginosa and Escherichia coli, respectively. Purification of S. muticum Viscozyme extracts by solid-phase extraction managed to concentrate the phenolic content and improve the bioactivity. These results indicate the promising potential of enzyme-assisted followed by solid-phase extrac- tion in recovering phenolic content and in improving its bioactivity.

  • [hal-01470518] Pistes cyclables et innovation dans les marchés publics

    Nova'TP, commission TP de NOVABUILD, a initié un groupe de travail visant à favoriser l'innovation dans les marchés publics de travaux, grâce à l'élaboration de cahier des charges décrivant les performances attendues plutôt que les moyens de les atteindre. Cette démarche s'est appuyée sur l'exemple concret du choix des matériaux des pistes cyclables, qui sont intégrées à la plupart des aménagements réalisés sur l'espace public. La première étape du projet a consisté à définir les critères objectifs de performance de ces matériaux, afin de répondre aux enjeux de confort, de développement durable, de coût... exprimés par les maitres d'ouvrage. Sur certains critères, comme le confort, l'absence de référentiel existant pour les infrastructures cyclables, nous a conduit à développer une démarche innovante, en adaptant l'usage du Vel'Audit (Îlo instrumenté, prévu initialement pour l'inspection à haut rendement d'aménagements cyclables). Les matériaux déjà couramment utilisés pour ce type d'infrastructure ont été caractérisés selon ces critères. Ces données ont ensuite été regroupées dans une application, développée pour faciliter l'analyse et la comparaison des offres par les maîtres d'ouvrage. Cette application permet de comparer des matériaux conventionnels entre eux ou avec des matériaux innovants sous un aspect performentiel. Ce logiciel d'aide à la décision a été testé par Nantes Métropole sur plusieurs opérations d'aménagement, pour Îrifier sa pertinence et proposer certaines évolutions.

  • [hal-01470514] Transposability of road management devices to the evaluation of comfort and safety of cycling lanes

    Les collectivités françaises développent de plus en plus d'aménagement cyclables, et il apparaît donc plus d'attentes concernant la sécurité de ces aménagements, leur confort, leur durabilité, leur gestion et entretien... Si pour le réseau routier général, les maîtres d'ouvrages disposent d'outils d'aide à la décision, basés sur des critères tels que la sécurité, la mobilité, l'environnement et le coût, les voies cyclables ne sont que partiellement concernées par ces outils. Ce travail vise à répondre aux attentes des gestionnaires de réseaux cyclables et a été réalisé dans le cadre du groupe de travail « Nova-TP » sur l'innovation dans les transports. En première partie de ce travail, L'outil Vel'audit est présenté. DériÎ des outils routiers, Vel'Audit est un Îlo instrumenté qui permet de réaliser des releÎs d'images ensuite exploitables à l'aide du logiciel IREVE. Ce diagnostic permet à la fois de caractériser l'infrastructure et d'identifier des défauts de cyclabilité. Vél'audit dispose aussi d'une centrale inertielle mesurant les vibrations subies par le Îlo et conduisant au calcul d'un indicateur confort indexé à la vitesse d'avancement. Pour l'aspect sécurité, le SRT (Skid Resistance Tester) est ensuite présenté, comme un des moyens de mesure de l'adhérence exploité pour les routes et pouvant être directement transposé aux pistes cyclables. Des essais de validité sur piste cyclable sont ensuite discutés et, en perspectives, le développement d'un matériel utilisable continûment sur itinéraire, inspiré du Grip-Tester, est envisagé en prolongement des mesures ponctuelles du SRT. Ainsi différentes techniques d'auscultations routières éprouÎes peuvent répondre aux besoins émergents des gestionnaires d'infrastructures cyclables, tout en s'adaptant aux caractéristiques de ces déplacements cyclables. Ces transpositions sont encore peu investie alors même que les besoins existent et qu'en finalité cela pourrait aboutir à la construction d'un indice de qualité cyclable (IQCy) à l'image de l'IQRN routier.

  • [hal-01346177] Enzymatic extraction of phenolic compounds in different species of French and Indonesia Sargassum

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  • [hal-01346174] Influence de la saisonnalité sur la composition biochimique de Sargassum muticum, estimée par spectrométrie IR

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  • [hal-01346170] Use of membrane systems for recovering phenolic compounds from the invasive macroalgae Sargassum muticum

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  • [hal-01346168] Biorefining of a proliferative macroalga Sargassum muticum by enhanced enzymatic hydrolysis

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  • [hal-01346137] Biorefining of proliferative macroalgae Sargassum muticum by enzymatic hydrolysis

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  • [hal-01346129] Recovery of aroma compounds from seafood cooking juices by membranes processes

    Cooking juices are fish industry effluents with high organic and salt contents, typically 10–20 g COD L−1 and 20–30 g salt L−1. They contain valuable substances (mainly aromas and proteins) that can be recovered, thereby significantly lowering treatment cost and offering a commercial gain for the food industry. The use of membrane processes to concentrate aromas in the cooking juices of fish and shellfish/crustaceans is reviewed, and some issues related to the technical and economic feasibility of industrial processes are highlighted. The issue of process design and economic evaluation is illustrated by a case study of a batch process concentrating shrimp aromas by reverse osmosis, and desalting juices by electrodialysis. The analysis shows that the sizing of this integrated process does not require systematic evaluations of CAPEX and OPEX, but can be done by considering only two simple criteria, namely minimizing energy consumption and the total membrane surface installed. In addition, when the characteristics of the processed juices change in time, the best solution should be determined by considering not only the process costs but also the ability of the process to adequately treat juices with different characteristics.

  • [hal-00943273] Assessment of the spatial variability of phenolic contents and associated bioactivities in the invasive alga Sargassum muticum sampled along its European range from Norway to Portugal

    Sargassum muticum, an invasive brown macroalga presently distributed along European Atlantic coasts from southern Portugal to the south coast of Norway, was studied on a large geographical scale for its production of phenolic compounds with potential industrial applications and their chemical and biological activities. S. muticum can produce high biomass in Europe, which could be exploited to supply such compounds. S. muticum was collected in Portugal, Spain, France, Ireland and Norway (three sites/country) to examine the effect of the latitudinal cline and related environmental factors. Assays focused particularly on polyphenols and their activities. Crude acetone-water extracts were purified using solid phase extraction (SPE) and antioxidant and antimicrobial activities of crude extracts and semi-purified fractions measured. Total phenolic content was assessed by colorimetric Folin-Ciocalteu assay and reactive oxygen species activities by 2,2-diphenyl-1-picrylhydrazyl, reducing power, β-carotene bleaching method and xanthine oxidase assay. Antibacterial activities were tested on terrestrial and marine strains to evaluate potential use in biomedical and aquaculture fields. Purified active phlorotannins, isolated by SPE, were identified using NMR. Phenolic contents differ clearly among countries and among sites within countries. Quality did not change between countries, however, although there were some slight differences in phlorethol type. Additionally, some fractions, especially from the extreme north and south, were very active. We discuss this in relation to environmental conditions and the interest of these compounds. S. muticum represents a potential natural source of bioactive compounds and its collection could offer an interesting opportunity for the future management of this species in Europe.

  • [hal-00669664] Fractionation by ultrafiltration of a saithe protein hydrolysate (Pollachius virens): Effect of material and molecular weight cut-off on the membrane performances

    Five organic tubular nanofiltration membranes of various material and molecular weight cut-off (MWCO) were tested for the enrichment of a fish (saithe, Pollachius virens) hydrolysate in low molecular weight antioxidant peptides (< 2 kDa). The effect of membrane material and MWCO on permeation flux, hydrolysate adsorption extent, membrane cleaning and peptides retention was investigated in low fouling conditions in order to limit concentration polarization effects. Water permeation fluxes appeared sensitive both to the MWCO and the membrane material. Membranes in polyethersulfone (PES), a highly hydrophobic material, exhibited lower fluxes than modified polyethersulfone (m-PES) and polysulfone (PS) membranes. The 4 kDa m-PES membrane was found to be the most adapted to the objective in terms of flux and retention factor. The 4 kDa m-PES and 8 kDa PS membranes could also be used in series to recover medium-size peptides. (c) 2008 Elsevier Ltd. All rights reserved.

  • [hal-00668508] Impact of ultrafiltration and nanofiltration of an industrial fish protein hydrolysate on its bioactive properties

    BACKGROUND: Numerous studies have demonstrated that in vitro controlled enzymatic hydrolysis of fish and shellfish proteins leads to bioactive peptides. Ultrafiltration (UF) and/or nanofiltration (NF) can be used to refine hydrolysates and also to fractionate them in order to obtain a peptide population enriched in selected sizes. This study was designed to highlight the impact of controlled UF and NF on the stability of biological activities of an industrial fish protein hydrolysate (FPH) and to understand whether fractionation could improve its content in bioactive peptides. RESULTS: The starting fish protein hydrolysate exhibited a balanced amino acid composition, a reproducible molecular weight (MW) profile, and a low sodium chloride content, allowing the study of its biological activity. Successive fractionation on UF and NF membranes allowed concentration of peptides of selected sizes, without, however, carrying out sharp separations, some MW classes being found in several fractions. Peptides containing Pro, Hyp, Asp and Glu were concentrated in the UF and NF retentates compared to the unfractionated hydrolysate and UF permeate, respectively. Gastrin/cholecystokinin-like peptides were present in the starting FPH, UF and NF fractions, but fractionation did not increase their concentration. In contrast, quantification of calcitonin gene-related peptide (CGRP)-like peptides demonstrated an increase in CGRP-like activities in the UF permeate, relative to the starting FPH. The starting hydrolysate also showed a potent antioxidant and radical scavenging activity, and a moderate angiotensin-converting enzyme (ACE)-1 inhibitory activity, which were not increased by UF and NF fractionation. CONCLUSION: Fractionation of an FPH using membrane separation, with a molecular weight cut-off adapted to the peptide composition, may provide an effective means to concentrate CGRP-like peptides and peptides enriched in selected amino acids. The peptide size distribution observed after UF and NF fractionation demonstrates that it is misleading to characterize the fractions obtained by membrane filtration according to the MW cut-off of the membrane only, as is currently done in the literature. Copyright © 2010 Society of Chemical Industry

  • [hal-00656825] Experimental Joint Stiffness Identification Depending on Measurements Availability

    This paper addresses the important topic of joint flexibility identification. Three dynamic models depending on measurements availability are compared. The parameters are estimated by using the ordinary least squares of an over linear system obtained from the sampling of the dynamic model along a closed loop tracking trajectory. An experimental setup exhibits the experimental identification results.

  • [hal-00638013] New results on the relation between tyre-road longitudinal stiffness and maximum available grip for motor car

    Tyre-road estimation methods have been the objective of many research programmes throughout the world. Most of these methods aim at estimating the friction components such as tyre longitudinal slip rate κ and friction coefficient μ in the contact patch area. In order to estimate the maximum available friction coefficient μmax , these methods generally use a probabilistic relationship between the grip obtained for low tyre excitations (such as constant speed driving) and the grip obtained for high tyre excitations (such as emergency braking manoeuvre). Confirmation or invalidation of this relationship from experimental results is the purpose of this paper. Experiments have been carried out on a reference track including several test boards corresponding to a wide textural spectrum. The main advantage of these experiments lies in the use of a vehicle allowing us to accurately build point-by-point relationship between κ and μ. This relationship has been determined for different tyres and pavement textures. Finally, the curves obtained are analysed to check the validity of the relationship between the current friction coefficient used by the car during normal driving conditions and μmax.

  • [hal-00402785] Experimental Identification of the Inverse Dynamic Model : Minimal Encoder Resolution Needed Application to an Industrial Robot Arm and a Haptic Interface. In : Robot manipulators.

    Ce chapitre de livre, accessible par internet, décrit une méthode pour connaître l'influence de l'erreur de mesure sur le résultat final. Elle revient à utiliser une méthode classique utilisée dans l'évaluation de la robustesse des simulations numériques vis à vis de la troncature liée au codage des réels par les ordinateurs. (la méthode CESTAC :Contrôle et Estimation Stochastique des Arrondis de Calculs).

  • [hal-00402729] Identification of Robots using the Instrumental Variable Method

    The identification of the dynamic parameters of robot is based on the use of the inverse dynamic model which is linear with respect to the parameters. This model is sampled while the robot is tracking exciting trajectories, in order to get an over determined linear system. The linear least squares solution of this system calculates the estimated parameters. The efficiency of this method has been proved through the experimental identification of a lot of prototypes and industrial robots. However, this method needs joint torque and position measurements and the estimation of the joint velocities and accelerations through the pass band filtering of the joint position at high sample rate. So, the observation matrix is noisy. Moreover identification process takes place when the robot is controlled by feedback. These violations of assumption imply that the LS solution is biased. The Refined Instrumental Variable (SRIV) approach deals with this problem of noisy observation matrix and can be statistically optimal. This paper focuses on this technique which will be applied to a 2 degrees of freedom (DOF) prototype developed by the IRCCyN Robotic team.

  • [hal-00402723] Identification of Robots Dynamics with the Instrumental Variable Method

    The identification of the dynamic parameters of robot is based on the use of the inverse dynamic model which is linear with respect to the parameters. This model is sampled while the robot is tracking exciting trajectories, in order to get an over determined linear system. The linear least squares solution of this system calculates the estimated parameters. The efficiency of this method has been proved through the experimental identification of a lot of prototypes and industrial robots. However, this method needs joint torque and position measurements and the estimation of the joint velocities and accelerations through the pass band filtering of the joint position at high sample rate. So, the observation matrix is noisy. Moreover identification process takes place when the robot is controlled by feedback. These violations of assumption imply that the LS solution is biased. The Simple Refined Instrumental Variable (SRIV) approach deals with this problem of noisy observation matrix and can be statistically optimal. This paper focuses on this technique which will be applied to a 2 degrees of freedom (DOF) prototype developed by the IRCCyN Robotic team.

  • [hal-00402609] Using Robust Regressions and Residual Analysis to Verify the Reliability of LS Estimation : Application in Robotics

    Usually, the identification of the dynamic parameters of robot makes use of the inverse dynamic model which is linear with respect to the parameters. This model is sampled while the robot is tracking exciting trajectories. This allows using linear least squares (LS) techniques to estimate the parameters. The efficiency of this method has been proved through experimental identifications of a lot of prototypes and industrial robots. However, it is known that LS estimators are sensitive to outliers and leverage points. Thus, it may be helpful to verify their reliability. This is possible by using robust regressions and residual analysis. Then, we compare the results with those obtained with classical LS regression. This paper deals with this issue and introduces the experimental identification and residual analysis of an one degree of freedom (DOF) haptic interface using the Huber's estimator. To verify the pertinence of our analyses, this comparison is also performed on a medical interface consisting of a complex mechanical structure.

  • [hal-00401039] Performances of ultrafiltration membranes for fractionating a fish protein hydrolysate: Application to the refining of bioactive peptidic fractions

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  • [hal-00401013] Concentration and purification by ultrafiltration of marine peptides solutions

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  • [hal-00342916] Fractionation of fish protein hydrolysates by ultrafiltration and nanofiltration: impact on peptidic populations

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Pierrebis

HAL : Dernières publications

  • [hal-04598493] Road force sensor for vehicle grip estimation and road monitoring devices verification

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  • [hal-04506092] Méthodologie de calibration d'un modèle multimodal des déplacements pour l'évaluation des externalités environnementales avec preuve de concept

    Les contributions de ce livrable sont : 1. un état de l'art sur l'utilisation des système multi-agents pour l'évaluation environnementale sur deux critères~ l'exposition au bruit et la pollution de l'air ; 2. la description de la méthodologie du pipeline Eqasim appliquée aux données disponibles pour la métropole de Nantes ; 3. les premiers résultats de simulation obtenu pour l'évaluation environnementale de la ligne Nantes Carquefou sous la forme d'une preuve de concept.

  • [hal-04443365] comparative wind influence on use phase energy consumptions of roads and railways

    Sustainable development is largely depending on transportation systems ensuring mobility and safety. This mobility requires a sufficient access to the energy, at an affordable price. According to the peak-oil hypothesis, rarefaction and increasing in price of the non-renewable energies are nevertheless expected. Even if transportations systems could partly rely on renewable energies, their optimization should involve energy and mobility criteria. In this study, surrounding wind fields and traveling speed are conjointly investigated in order to evaluate achievable reductions in fuel consumptions for both railways and road transportation systems. In the first part of this work, aerodynamic forces on trains are evaluated with the help of an energy model, validated with experimental tests data. For that, numerical determination of aerodynamic coefficients for several wind and topological situations have been computed with Solid-Works and associated to atmospheric characteristics determined over the considered high-speed line (Rhine-Rhone line; about 140 km) with the AROME model (meteo-france), from measurements at several weather stations. Simulation results show that for a weak wind and a train traveling at high speed, wind influence is about 5% on aerodynamic forces power. Moreover, for a moderate train speed (about 45 m/s), a slightly stronger wind (about 5 m/s) has an influence of about 30%, compared to the without wind case. In a second time, road experiments have been conducted with a passenger car equipped with an air flow meter and an oil flow meter, in addition of dynamical measurements as speed, position, altitude... Similarly to the railway case, wind exposition could be considered as a significant road design parameter. In conclusion, this work based on large sets of full-scale experimental data and the numerical simulation of the aerodynamic forces, points out that wind influence on total aerodynamic power consumption is noticeable, both for railways or road transportation systems.

  • [hal-04443418] Contribution of simplified vehicle dynamic models to road safety analysis

    The skid resistance analysis is one part of the complex process which is involved in road safety analysis for a road project or for road maintenance. As early as the design phase, the road geometry choice is linked to the skid resistance for a given level of service. In the road maintenance case, different conventional measurements are performed on the road and by analyzing them together, risks can be enlightened. Currently, this analysis is done by comparing these data. This is time consuming and requires dedicated skills. The final objective of our work is to simplify this procedure by developing a software with models of vehicle, digitalized roads, tires, water height and other parameters. With this software, it will be possible to simulate different vehicles on a given road in order to evaluate if the skid resistance supplied by the road meets its demands of the traffic. The key of this development is to assess the prediction capacities of the models. In this paper, a first step in this evaluation process is presented. It consists in a comparison between the skid resistance predicted by simplified vehicle dynamic models, by a reference commercial model and the actual skid resistance measured on a real vehicle taking a curve at high speed. These experiments took place on our test track at Nantes with our fully instrumented car. This study is oriented towards road manager needs which are to know if these dynamic models can improve their analysis. The chosen models have to be versatile enough in order to take into consideration the road characteristics. The objective is not to predict a crash for a given car but to detect a possible source of crash for a class of vehicle due to improper road characteristics. First results show the interest of intermediate models for road manager needs, between the point and commercial model. Their advantages are mainly to be more realistic than the point model and to require less information than commercial software.

  • [hal-04443407] Road safety contribution by evaluation of tire crushing using a measuring hub

    The aim of this study is to improve road safety by analyzing road influence on vehicle stability. Nowadays, vehicle stability is enhanced by electronic systems. It can be expected that, in a near future, stability systems will rely on complete vehicle dynamics models. This means measuring, on each axle, the forces and deformations of-especially-tires and suspensions. In that perspective, the contact forces can be obtained by using dynamometrical wheels or load bearing sensors (SKF-TNO), which are likely to become available at a sufficiently low cost. For the deformation concern, we can think of lots of possibilities to gauge the suspension parts, but, at the present time, the tire vertical deformation remains difficult to acquire. Although different techniques exist to determine the tire crushing, the most popular consists in measuring the distance between a laser sensor fitted on a wheel and the corresponding local road surface. Nevertheless, this kind of sensor is expensive, difficult to adapt on standard cars and its measurements are highly influenced by the road texture state (water depth, markings ...). The whole new idea is that, assuming the availability of bearing load sensors on a vehicle for force measurement, tire height could be evaluated without any additional equipment by measuring torques and forces applicated to this wheel. So, we propose to evaluate the effectiveness of equivalence between the tensor components and optical crushing measurements. Experiments have been worked out at various speeds and curves. These experiments tend to show that the longitudinal torque and lateral force at the wheel center can be used to determine the wheel radius in the maximum loaded phases. Dynamometrical measurements present the possibility to be used under extreme weather conditions, for particular road texture contrary to optic techniques and at an expected affordable cost in a near future. More deepened studies will be launched to estimate the influence of tire structure, road curvature, evenness and texture on the proposed methodology.

  • [hal-04442024] Management of road speed sectioning to lower vehicle energy consumption

    Efforts to limit climate change should concern the transportation sector which is responsible for roughly a quarter of greenhouse gas emissions. Aside from vehicle’s technical progress and driver eco-driving awareness, road infrastructure has a role to play in this environmental aim. At the project stage, the design of roads can avoid energy losses linked to marked ramps, but afterwards, during the use phase, road management can be a lever too. In this use phase framework, our paper is focused on energy saving that can be achieved by managing speed sectioning. The key point is to ensure consistency between vehicle dynamics, road longitudinal profile and speed policy. Indeed, eco-driving could be impeded if a limiting speed sign is encountered on a steep slope or in a sharp turn. In such a situation the speed sign will be qualified as misplaced. Mechanical braking has then to be used instead of simple natural deceleration. In 2018 the French government lowered authorized speed on secondary roads, from 90 to 80 km/h, with road safety as the primary motivation. In order to assess energy impact of speed-sectioning for these two speed limits, experiments have been carried out in four experimental sites. Furthermore criterion and dissipated energy computation have been developed. The developed energy computation yields to determine the expected fuel economy for the entire traffic over a day on a selected route or network. As a result, over consumption for a misplaced speed sign can reach up to 40 liters of fuel per day with an approaching speed of 80 km/h and 50 liters of fuel per day with an approaching speed of 90 km/h according to traffic data. Significant energy savings could therefore be achieved by sign placement optimization.

  • [hal-04416930] A full factorial sensitivity analysis for a capacitated Flex-Route Transit system

    Popularity has increased for semi-flexible transit systems because they combine the flexibility of a Demand Responsive Transit with the affordable fare of Conventional Public Transport. In this study, we investigate a Flex-Route Transit: a shuttle performs several trips in a pre-defined service area; it follows a main route between origin and destination terminals and must pass through some mandatory checkpoints along this route. Between any consecutive checkpoints, an available slack time is available for shuttles to deviate from the main route to pick-up and drop-off customers. We implement a Mixed-Integer Linear Programming formulation from the literature with an added shuttle capacity constraint. We use it to perform a sensitivity analysis of the system using a full factorial experimental design over three parameters, namely: shuttle capacity, level of demand and available slack time. The combined influence of the parameters is analyzed using the method called Analysis of Variance.

  • [hal-04411562] Individual-level activity-based modeling and indicators for assessing construction sites noise exposure in urban areas

    Construction site noise significantly contributes to urban noise pollution. To accurately assess the noise exposure from urban construction sites, it is essential to consider the variability and dynamic nature of the urban context. This paper proposes an innovative approach using individual-level activity-based modeling to tackle the given challenge. The methodology introduced encompasses: the modeling of construction site noise emission sources, individual-level activity-based modeling of zone of influences, a modeling chain for assessing individual noise exposure levels, and a novel dedicated exposure indicator. To illustrate the relevance of our methodology, a case study is conducted in Champigny-sur-Marne, France; this study involves the generation of a synthetic population of 1,344,394 individuals distributed among 591,153 households, with 4,854,597 associated activities, using the Eqasim simulation framework. A traffic model is then established using the multi-agent transport simulation software MATSim. NoiseModelling software is employed to compute noise maps both with and without the construction site. Subsequently, the noise exposure for each individual is assessed throughout the day for both configurations. Thanks to this complete modeling chain, the proposed indicator quantifying the cumulative amount of time of exposure above a given threshold can be compute, with the case study result being estimated at more than 3,300 person.quarter-hours above 65 dB(A).

  • [hal-04114226] Allocating synthetic population to a finer spatial scale: An integer quadratic programming formulation

    Agent-Based Models (ABMs) are being increasingly used to evaluate urban systems, urban policies and environmental impacts. One prerequisite for using the ABM framework consists of generating a synthetic population representative of the actual population, featuring the appropriate attributes with respect to model objectives. A precise spatial positioning of the synthetic population agents is often key to ensuring ABM modeling quality. This paper considers the problem of allocating synthetic population agents to a finer spatial scale. Such an allocation process is performed from a higher-level statistical area where a synthetic population can be generated, that is, a container statistical area (CSA), to several nested non-overlapping elementary statistical areas (ESAs), where only marginals are available. This allocation step relies not only on common attributes between CSA and ESA, but also on additional discriminatory attributes, that is, attributes of interest, estimated from external data sources. The case study examined herein is based on French census and fiscal data. Common attributes include eight socio-demographic variables, totaling 17 modalities. An additional attribute of interest, that is, income, has also been added. The allocation problem at hand is modeled as an integer quadratic programming problem. An exact algorithm is first applied to solve the problem; the applicability of this algorithm proves to be limited to small-size synthetic populations. A heuristic is proposed to handle the allocation of larger-size synthetic populations. Tests carried out on the case study show that this heuristic yields near-optimal solutions; it is also computationally efficient and may fulfill the needs of a majority of users.

  • [hal-04321599] A survey of Flex-Route Transit problem and its link with Vehicle Routing Problem

    Flexible transport systems such as Demand Responsive Transit (DRT) are becoming more and more popular over the last few years due to their convenience for customers. However, this convenience comes at a price. Transport authorities are currently looking for ways to improve service flexibility of Conventional Public Transport (CPT), which is undoubtedly cheaper than DRT. This justifies the need for Flex-Route Transit (FRT), which combines the flexibility of DRT and the low cost of CPT. This paper surveys research developments on FRT, as a promising alternative mode of public transport. Based on this survey, we discuss current research gaps that may be filled to increase FRT applicability. Moreover, we show how literature on classic Operations Research problems is of help to do so. In particular, we study similarities and differences between FRT and Vehicle Routing Problem, and specifically with one of its variant named Dial-a-Ride Problem. The analysis illustrates promising techniques that may be of use for solving FRT.

  • [hal-04312243] Modeling Exposure to Mobility-Related Pollution: Review and Key Challenges

    The health and equity issues related to urban pollution, coupled with the need to assess the consequences of implementing transport policies or new mobility solutions, make it imperative to provide decision-makers with a relevant modeling framework. The coupling of activity-based travel models with environmental models presents a promising approach to thoroughly investigate the interconnected issues related to the impact of road traffic on individual exposure to noise and air pollution. Integrated modeling chains provide a robust framework to comprehensively assess traffic scenarios on a city scale and address issues related to environmental inequalities. This article reviews the recent work in this field to identify both the main contributions and key challenges still to be addressed. It illustrates how the use of a dynamic approach, which considers the intraday dynamics of individual mobilities and pollution concentrations, can contribute to more accurate estimates of the exposure of individuals to pollutants. This modeling approach also has the potential to investigate how the level of exposure depends on the characteristics of the individuals (socioeconomic factors, commuting patterns, location of residence, and main activities). Nonetheless, there are still important challenges to overcome to further enhance the accuracy and applicability of these models: taking into account all types of traffic and transport modes; refining the modeling of exposure to pollution during travel; taking better consideration of microenvironments; and so forth.

  • [hal-04312241] Experimental assessment of wind influence on high-speed train energy consumptions

    Ifsttar and RFF have developed an energy model of high-speed trains in order to determine the influence of infrastructure geometry and environment on train power consumptions. Validation of this model is based on full scale tests performed for the Rhine-Rhone high-speed line acceptance of work (in 2011). This paper aims to evaluate if wind influence is a relevant parameter for the model. This involves numerical determination of aerodynamic coefficients for various wind and ground configurations and their use for the calculation of the aerodynamic efforts. Atmospheric characteristics are extrapolated from meteorological measurements thanks to the AROME numerical model, over the whole Rhine-Rhone line. Most remarkable results show for a moderate train speed (about 47 m/s), a rearward oriented wind of only 5,5 m/s lowers by 30% the power due to aerodynamic forces applied on the train, or raises it similarly if it is forwardly oriented. In conclusion, this work points out that wind influence is of first importance for computing energy consumption.

  • [hal-04312233] Influence of railway gradient on energy efficiency of high speed train

    In the context of reducing the global energy consumptions in transport systems, railways offer many advantages. Therefore the construction of new high speed railways has been planned. This article assesses the impact of the gradient of the railway on the train energy efficiency. This key parameter has a direct influence on the construction and operation phases energy amounts, since low gradients could require considerable civil engineering works. The energy model of the railway operation phase presented in this paper takes into account the infrastructure geometry, the train characteristics and the speed profiles. It is applied to different generic cases in order to illustrate the impact of the infrastructure gradients. The corresponding trajectories are compared from an energy efficiency point of view. Results show that the gradient is not the only one element to take into account. The associated length of ramp or slope is crucial too. For example, it is shown that short section with an important gradient can require less operation energy than lower gradient on longer distances. It is therefore possible to determine a couple of slope/ramp length and gradient for a given rolling stock which contributes to the minimization of the global construction cost and of the operating energy consumption.

  • [hal-04030611] Enhancement of Vehicle Eco-Driving Applicability through Road Infrastructure Design and Exploitation

    Energy moderation of the road transportation sector is required to limit climate change and to preserve resources. This work is focused on the moderation of vehicle consumption by optimizing the speed policy along an itinerary while taking into account vehicle dynamics, driver visibility and the road's longitudinal profile. First, a criterion is proposed in order to detect speed policies that are impeding drivers' eco-driving ability. Then, an energy evaluation is carried out and an optimization is proposed. A numerical application is performed on a speed limiting point with 20 usage cases and 5 longitudinal slope values. In the hypothesis of a longitudinal slope of zero, energy savings of 27.7 liter per day could be realized by a speed sign displacement of only 153.6 m. Potential energy savings can increase to up to 308.4 L per day for a −4% slope case, or up to 70.5 L per day for an ordinary −2% slope, with a sign displacement of only 391.5 m. This results in a total of 771,975 L of fuel savings over a 30 year infrastructure life cycle period. Therefore a methodology has been developed to help road managers optimize their speed policies with the aim of moderating vehicle consumption.

  • [hal-01061188] Méthode à erreur de sortie pour l'identification en boucle fermée des paramètres dynamiques d'un robot à flexibilité localisée, sans mesure de flexibilité

    Ce papier présente une nouvelle méthode à erreur de sortie en deux étapes pour l'identification en boucle fermée des paramètres inertiels, de frottements et de raideur d'un axe de robot avec flexibilité articulaire localisée. Cette méthode utilise uniquement l'effort et la position du moteur, sans aucune mesure de flexibilité. La première étape identifie la fréquence du mode rigide asservi et la fréquence du mode flexible à entrée bloquée, en utilisant un modèle haute fréquence double intégrateur du robot. L'identification utilise une méthode à erreur de sortie sur la position du moteur. Ces deux paramètres de fréquence optimaux sont ensuite utilisés dans la deuxième étape pour l'identification des paramètres dynamiques du robot par une méthode à erreur de sortie sur l'effort moteur. Cette méthode récente (DIDIM) qui utilise les modèles d'identification directe et inverse du robot permet d'obtenir une convergence des paramètres très rapide et insensible aux conditions initiales. Une validation expérimentale sur un robot un axe montre l'efficacité de la nouvelle méthode comparée à deux méthodes à erreur de sortie classiques.

  • [hal-03562604] A new framework for Mobility Allowance Shuttle Transit (MAST)

    [...]

  • [hal-03544169] Mixed-Integer Linear Programming (MILP) formulation for a Mobility Allowance Shuttle Transit (MAST)

    The Mobility Allowance Shuttle Transit (MAST) system is a type of public transportation where vehicles may deviate from a fixed route to serve clients who wish to get on or off within a service area. In this area, the system provides an on-demand service. We use Mixed-Integer Linear Programming to tackle the MAST system and consider often neglected realistic constraints, as those linked to vehicle capacity and fleet availability. We perform a sensitivity analysis to understand how the system performance varies as a result of changing client priorities.

  • [hal-03326458] Simulation d'une population synthétique : méthodologie et cas d'application sur Nantes SNCF TER Mobilités Pays de la Loire - Ifsttar / Livrable 2

    Ce rapport est le deuxième rapport prévu au sein de ce contrat, écrit par l'équipe universitaire à destination de la SNCF dans le cadre de la convention de co-encadrement SNCF/UniversitéGustaveEiffel (anciennement Ifsttar) accompagne cette thèse (No Ifsttar : RP1-E19045) sous la responsabilité scientifique de Jean Calio, expert Data, Mobilité et Territoires et Développement Durable de la SNCF et de Pierre-Olivier Vandanjon.

  • [hal-03322463] Slope Optimisation (Sloop): Tailor-made optimisation for road longitudinal profile ecodesign considering the dynamic of vehicles

    The current transport system is not sustainable because of its high consumption of finite resources (mainly oil) and its impact on the environment (air quality, global warming, etc.). The design phase of the transport infrastructure has to be reconsidered in order to take into account these environmental burdens. Very recently, a methodology called Sloop (Slope Optimization) has been proposed to optimize the road longitudinal profile according to either an energy consumption or a Global Warming Potential (GWP) criterion calculated for construction and use phases. However, this optimization requires a high computation effort. It is a severe limitation to deploy this application to significant road project . The purpose of this paper is to propose a tailor-made optimization process which improves significantly this methodology. For the construction phase assessment, the methodology is based on a model of earthworks which computes the differences of geometry between the natural terrain and the road longitudinal profile. The use phase is assessed by simulating the traffic. Traffic simulations are based on vehicle dynamic models validated with real experiments. Starting from an initial longitudinal profile proposed by road designers, our algorithm finds a better profile in terms of Energy or GWP. The degrees of freedom of the optimization problem are mainly the road slopes and secondly the radii of the circles which connect them. The main constrain is the connection of the profile with the existing road. The optimization is complex due to the important number of degrees of freedom and the computation cost of the use phase assessment. It is the reason why, we developed a specific algorithm based on the Sequential Quadratic Programming Method (SQP) with suited computations of the linear approximation.

  • [hal-03081371] Slope Optimization (or "Sloop"): Customized Optimization for Road Longitudinal Profile Eco-Design

    Current transportation systems contributed to one quarter to the Greenhouse Gases (GhG) emissions and the mobility demand increases continuously. The transportation infrastructure design has to be optimized to mitigate these emissions. The methodology ?Sloop? (acronym for Slope Optimization) has recently been set up to optimize the longitudinal road profile with respect to a Global Warming Potential (GWP) criterion calculated for both the construction and operational phases while incorporating accurate vehicle models. This paper proposes a customized optimization strategy that significantly improves the Sloop methodology. From an initial longitudinal profile generated by road designers, our algorithm identifies the optimized profile in terms of GWP. This optimization step is complex due to the large number of degrees of freedom, along with various constraints to obtaining a feasible solution and the computational cost of the operational phase assessment. The most stringent constraint entails connecting the profile with the existing road (i.e., a constraint on the final profile altitude). We have developed a specific algorithm based on the Sequential Quadratic Programming (SQP) method; this algorithm takes into account the quasi-quadratic nature of the constraint on the final altitude. In a real case study, our algorithm outputs a profile whose GWP assessment saves 4% compared to the GWP assessment of the initial profile. The benefit of our specific protocol for treating the final altitude constraint is demonstrated in this example. By means of this new efficient and open-box algorithm, profile evolution at each iteration is analyzed to determine the most sensitive degrees of freedom, and the sensitivity of the optimization with respect to the main construction parameters and traffic assumptions are conducted. The results are consistent and stable.

  • [hal-00782079] Utilisation de polynômes de Tchebychev pour l'identification de modèles à temps continu de robots

    Dans cet article, une présentation des propriétés des polynômes de Tchebychev et une formulation dérivée utilisant ces polynômes sont effectuées. La méthode d'identification présentée consiste à appliquer une transformation linéaire sur le système d'équations qui régit le processus. Pour cela, l'opérateur mathématique utilisé s'appuie sur une décomposition du signal dans une base formée de polynômes orthogonaux. Nous montrons que cette projection se comporte comme un filtre passe-bande, de telle sorte qu'une seule opération est nécessaire pour le pré-traitement des données avant le processus d'identification, à savoir choisir la dimension de la base des polynômes Tchebychev. Une identification expérimentale en boucle fermée d'un robot à 2 axes avec cette méthode est effectuée dans une dernière partie. Les résultats obtenus sont comparés et analysés avec d'autres techniques utilisées en robotique.

  • [hal-02012129] Model of High-Speed train energy consumption

    The current transport system is not sustainable because of its high consumption of finite resources (mainly oil) and its impact on the environment (air quality, global warming, etc.). In this context, rail has several advantages: lower consumption and emissions than road and air modes, larger passenger flow, etc. That is why, many rail infrastructures are planned in the world. Today, the impact of energy is not taken into account during the project design. At the project phase of new rail infrastructures, it is nowadays important to characterize accurately the energy that will be induced by its operation phase, in addition to other more classical criteria as construction costs and travel time. Current literature consumption models used to estimate railways operation phase are obsolete or not enough accurate for taking into account the newest train or railways technologies. In this paper, an updated model of consumption for high-speed is proposed, based on experimental data obtained from full-scale tests performed on a new high-speed line. The assessment of the model is achieved by identifying train parameters and measured power consumptions for more than one hundred train routes. Perspectives are then discussed to use this updated model for accurately assess the energy impact of future railway infrastructures.

  • [hal-01470518] Pistes cyclables et innovation dans les marchés publics

    Nova'TP, commission TP de NOVABUILD, a initié un groupe de travail visant à favoriser l'innovation dans les marchés publics de travaux, grâce à l'élaboration de cahier des charges décrivant les performances attendues plutôt que les moyens de les atteindre. Cette démarche s'est appuyée sur l'exemple concret du choix des matériaux des pistes cyclables, qui sont intégrées à la plupart des aménagements réalisés sur l'espace public. La première étape du projet a consisté à définir les critères objectifs de performance de ces matériaux, afin de répondre aux enjeux de confort, de développement durable, de coût... exprimés par les maitres d'ouvrage. Sur certains critères, comme le confort, l'absence de référentiel existant pour les infrastructures cyclables, nous a conduit à développer une démarche innovante, en adaptant l'usage du Vel'Audit (Îlo instrumenté, prévu initialement pour l'inspection à haut rendement d'aménagements cyclables). Les matériaux déjà couramment utilisés pour ce type d'infrastructure ont été caractérisés selon ces critères. Ces données ont ensuite été regroupées dans une application, développée pour faciliter l'analyse et la comparaison des offres par les maîtres d'ouvrage. Cette application permet de comparer des matériaux conventionnels entre eux ou avec des matériaux innovants sous un aspect performentiel. Ce logiciel d'aide à la décision a été testé par Nantes Métropole sur plusieurs opérations d'aménagement, pour Îrifier sa pertinence et proposer certaines évolutions.

  • [hal-01470514] Transposability of road management devices to the evaluation of comfort and safety of cycling lanes

    Les collectivités françaises développent de plus en plus d'aménagement cyclables, et il apparaît donc plus d'attentes concernant la sécurité de ces aménagements, leur confort, leur durabilité, leur gestion et entretien... Si pour le réseau routier général, les maîtres d'ouvrages disposent d'outils d'aide à la décision, basés sur des critères tels que la sécurité, la mobilité, l'environnement et le coût, les voies cyclables ne sont que partiellement concernées par ces outils. Ce travail vise à répondre aux attentes des gestionnaires de réseaux cyclables et a été réalisé dans le cadre du groupe de travail « Nova-TP » sur l'innovation dans les transports. En première partie de ce travail, L'outil Vel'audit est présenté. DériÎ des outils routiers, Vel'Audit est un Îlo instrumenté qui permet de réaliser des releÎs d'images ensuite exploitables à l'aide du logiciel IREVE. Ce diagnostic permet à la fois de caractériser l'infrastructure et d'identifier des défauts de cyclabilité. Vél'audit dispose aussi d'une centrale inertielle mesurant les vibrations subies par le Îlo et conduisant au calcul d'un indicateur confort indexé à la vitesse d'avancement. Pour l'aspect sécurité, le SRT (Skid Resistance Tester) est ensuite présenté, comme un des moyens de mesure de l'adhérence exploité pour les routes et pouvant être directement transposé aux pistes cyclables. Des essais de validité sur piste cyclable sont ensuite discutés et, en perspectives, le développement d'un matériel utilisable continûment sur itinéraire, inspiré du Grip-Tester, est envisagé en prolongement des mesures ponctuelles du SRT. Ainsi différentes techniques d'auscultations routières éprouÎes peuvent répondre aux besoins émergents des gestionnaires d'infrastructures cyclables, tout en s'adaptant aux caractéristiques de ces déplacements cyclables. Ces transpositions sont encore peu investie alors même que les besoins existent et qu'en finalité cela pourrait aboutir à la construction d'un indice de qualité cyclable (IQCy) à l'image de l'IQRN routier.

  • [hal-01308894] Physical parameter identification of a one-degree-of-freedom electromechanical system operating in closed loop

    This paper deals with the identification of physical parameters of a one-degree-of-freedom electromechanical system that operates in closed loop. Two models are considered: the inverse dynamic model which is linear in relation to the physical parameters to be identified and the direct dynamic model which is linear in relation to a nonlinear combination of the physical parameters. Three methods are considered and compared: the traditional method which makes use of the inverse dynamic model, tailormade data prefiltering and the least-squares method, an instrumental variable approach which makes use of the direct and inverse dynamic models and another instrumental variable approach which makes use of the direct dynamic model only. The experimental results show that the instrumental variable method based on the use of the inverse and direct dynamic models seems to be more appropriate than the two others because it is robust against noise and the physical parameters are directly identified.

  • [hal-01061255] Comparison between the CLOE Method and the DIDIM Method for Robots Identification

    This brief deals with the identification of industrial robots. The usual identification method is based on the use of the inverse dynamic identification model and the least-squares technique. Another approach is the direct and inverse dynamic identification models (DIDIM) method, which is a closed-loop output error (CLOE) method minimizing the quadratic error between the actual and simulated joint torques. In this brief, the DIDIM method is compared with the usual CLOE method, which minimizes the quadratic error between the actual and simulated joint positions. The comparison is carried out on six degrees of freedom industrial robot. The experimental results show that the DIDIM method needs three iterations to identify 60 parameters while the usual CLOE method needs 20 iterations.

  • [hal-00954732] An instrumental variable approach for rigid industrial robots identification

    This paper deals with the important topic of rigid industrial robots identification. The usual identification method is based on the use of the inverse dynamic model and the least-squares technique. In order to obtain good results, a well-tuned derivative bandpass filtering of joint positions is needed to calculate the joint velocities and accelerations. However, we can doubt whether the bandpass filter is well-tuned or not. Another approach is the instrumental variable (IV) method which is robust to data filtering and which is statistically optimal. In this paper, an IV approach relevant for identification of rigid industrial robots is introduced. The set of instruments is the inverse dynamic model built from simulated data which are calculated from the simulation of the direct dynamic model. The simulation assumes the same reference trajectories and the same control structure for both the actual and the simulated robot and is based on the previous IV estimates. Furthermore, to obtain a rapid convergence, the gains of the simulated controller are updated according to IV estimates. Thus, the proposed approach validates the inverse and direct dynamic models simultaneously and is not sensitive to initial conditions. The experimental results obtained with a 2 degrees of freedom (DOF) planar prototype and with a 6 DOF industrial robot show the effectiveness of our approach: it is possible to identify 60 parameters in 3 iterations and in 11 s.

  • [hal-00941612] Generic instrumental variable approach for industrial robot identification

    This paper deals with the important topic of industrial robot identification. The usual identification method is based on the inverse dynamic identification model and the least squares technique. This method has been successfully applied on several industrial robots. Good results can be obtained, provided a well tuned derivative band-pass filtering of joint positions is used to calculate the joint velocities and accelerations. However, one cannot be sure whether or not the band-pass filtering is well tuned. An alternative is the instrumental variable (IV) method, which is robust to data filtering and is statistically optimal. In this paper, a generic IV approach suitable for robot identification is proposed. The instrument set is the inverse dynamic model built from simulated data calculated from simulation of the direct dynamic model. The simulation is based on previous estimates and assumes the same reference trajectories and the same control structure for both actual and simulated robots. Finally, gains of the simulated controller are updated according to IV estimates to obtain a valid instrument set at each step of the algorithm. The proposed approach validates the inverse and direct dynamic models simultaneously, is not sensitive to initial conditions, and converges rapidly. Experimental results obtained on a six-degrees-of-freedom industrial robot show the effectiveness of this approach: 60 dynamic parameters are identified in three itérations.

  • [hal-00851519] A Durbin-Wu-Hausman Test for Industrial Robots Identification

    This paper deals with the topic of industrial robots identification. The usual identification method is based on the use of the inverse dynamic model (IDM) and least squares (LS) technique. Good results can be obtained provided that a well-tuned bandpass filtering is used. However, we are always in doubt if regressors are exogenous i.e. statistically uncorrelated with error terms. Surprisingly, in papers dealing with identification of real-world systems, exogeneity assumption is never verified whereas it is a fundamental condition to obtain unbiased estimates. In Econometrics, the Durbin-Wu-Hausman test (DWH-test) is a theoretical method for investigating whether regressors are exogenous or not. The DWH-test makes of the Two Stage Lesat Squares estimator (2SLS) and an augmented LS regression. However, this test cannot be used as is for robots identification: instruments set is supposed to be valid and restrictive statistical assumptions are made while they are quite implausible in practice. In this paper, we aim at bridging the gap between Econometrics and Control engineering practices by introducing a revisited version relevant for robots identification. An experimental validation performed on a 2 degrees of freedom (DOF) robot shows the effectiveness and the usefulness of this revisited DWH-test.

  • [hal-00851515] Identification of 6 DOF Rigid Industrial Robots with the Instrumental Variable Method

    This paper deals with the topic of robots dynamics identification. In this paper, we focus on the instrumental variable (IV) technique. For robots, the set of instruments is the inverse dynamic model built from simulated data which are calculated from the integration of the direct dynamic model, assuming the same reference trajectories and the same control law structure for both actual and simulated robots. The integration of the direct dynamic model is based on previous IV estimates. This defines an iterative algorithm. Furthermore, gains of the simulated controller are updated to get a fast convergence. Experimental results obtained on a six degrees of freedom robot manufactured by Stäubli show the effectiveness of our approach: 60 dynamic parameters are estimated in only two iterations.

  • [hal-00851507] Identification of Physical Parameters and Instrumental Variables Validation With Two-Stage Least Squares Estimator

    This paper addresses physical parameters identification of mathematical models that are linear in relation to these physical parameters. We can obtain good results with the least squares technique, provided that a well-tuned data filtering is used, and by using instrumental variable (IV) methods, which deal with the problem of noisy observation matrix. However, IV theory is based on instruments validity. In econometrics, statistical tests evaluating instruments quality have been developed. They make use of the two-stage least squares estimator and the concentration parameter introduced by Basmann. In this paper we show how to extend econometric theory to control engineering. An algorithm evaluating instruments quality is presented and experimentally validated on a two-degrees-of-freedom SCARA robot.

  • [hal-00850643] A New Closed-Loop Output Error Method for Parameter Identification of Robot Dynamics

    Offline robot dynamic identification methods are mostly based on the use of the inverse dynamic model, which is linear with respect to the dynamic parameters. This model is sampled while the robot is tracking reference trajectories that excite the system dynamics. This allows using linear least-squares techniques to estimate the parameters. The efficiency of this method has been proved through the experimental identification of many prototypes and industrial robots. However, this method requires the joint force/torque and position measurements and the estimate of the joint velocity and acceleration, through the bandpass filtering of the joint position at high sampling rates. The proposed new method called DIDIM requires only the joint force/torque measurement, which avoids the calculation of the velocity and acceleration by bandpass filtering of the measured position. It is a closed-loop output error method where the usual joint position output is replaced by the joint force/torque. It is based on a closed-loop simulation of the robot using the direct dynamic model, the same structure of the control law, and the same reference trajectory for both the actual and the simulated robot. The optimal parameters minimize the 2-norm of the error between the actual force/torque and the simulated force/torque. This is a nonlinear least-squares problem which is dramatically simplified using the inverse dynamic model to obtain an analytical expression of the simulated force/torque, linear in the parameters. A validation experiment on a two degree-of-freedom direct drive rigid robot shows that the new method is efficient.

  • [hal-00751410] New Closed-Loop Output Error Method for Robot Joint Stiffness Identification

    This paper deals with joint stiffness identification with a new Closed-Loop Output Error (CLOE) method which minimizes the quadratic error between the actual motor force/torque and the simulated one. This method is based on the DIDIM (Direct and Inverse Identification Model) procedure which has been validated on rigid robots and which is now applied to a flexible joint robot. DIDIM method requires a gain updating in the simulated robot in order to keep the bandwidth of the rigid controlled degree of freedom (dof ) and to keep the natural frequency of the flexible dof, close to the actual ones, at each step of the recursive Gauss Newton non linear programming algorithm. This gain updating requires a first step of estimating the natural frequency of the flexible dof before applying DIDIM method in a second step. An experimental setup exhibits identification results and shows the effectiveness of our approach.

  • [hal-00751406] Méthode à erreur de sortie pour l'identification en boucle fermée des paramètres dynamiques d'un robot à flexibilité localisée, sans mesure de flexibilité

    Ce papier présente une nouvelle méthode à erreur de sortie en deux étapes pour l'identification en boucle fermée des paramètres inertiels, de frottements et de raideur d'un axe de robot avec flexibilité articulaire localisée. Cette méthode utilise uniquement l'effort et la position du moteur, sans aucune mesure de flexibilité. La première étape identifie la fréquence du mode rigide asservi et la fréquence du mode flexible à entrée bloquée, en utilisant un modèle haute fréquence double intégrateur du robot. L'identification utilise une méthode à erreur de sortie sur la position du moteur. Ces deux paramètres de fréquence optimaux sont ensuite utilisés dans la deuxième étape pour l'identification des paramètres dynamiques du robot par une méthode à erreur de sortie sur l'effort moteur. Cette méthode récente (DIDIM) qui utilise les modèles d'identification directe et inverse du robot permet d'obtenir une convergence des paramètres très rapide et insensible aux conditions initiales. Une validation expérimentale sur un robot un axe montre l'efficacité de la nouvelle méthode comparée à deux méthodes à erreur de sortie classiques.

  • [hal-00656825] Experimental Joint Stiffness Identification Depending on Measurements Availability

    This paper addresses the important topic of joint flexibility identification. Three dynamic models depending on measurements availability are compared. The parameters are estimated by using the ordinary least squares of an over linear system obtained from the sampling of the dynamic model along a closed loop tracking trajectory. An experimental setup exhibits the experimental identification results.

  • [hal-00656818] Joint Stiffness Identification from only Motor Force/Torque Data

    This paper deals with joint stiffness identification with only actual motor force/torque data instead of motor and load positions. The parameters are estimated by using the DIDIM method which needs only input data. This method was previously validated on a 6 DOF rigid robot and is now extended to flexible systems. The criterion to be minimized is the quadratic error between the measured actual motor force/torque and the simulated one. The optimal parameters are calculated with the Nelder - Mead simplex algorithm. An experimental setup exhibits the experimental identification results and shows the effectiveness of our approach.

  • [hal-00638045] Comparaison des méthodes DIDIM et IV avec les Doubles Moindres Carrés : Application à la Robotique

    L'identification des paramètres dynamiques des robots est généralement basée sur l'utilisation du modèle dynamique inverse (MDI) qui est linéaire par rapport aux paramètres dynamiques à identifier et les moindres carrés linéaires (MCL). Cette méthode nécessite une mesure précise d'une image du couple et de la position à une fréquence assez élevée d'une part, et de l'estimation des vitesses et accélérations par un filtrage passe bande de la position d'autre part. La matrice d'observation étant bruitée et l'identification étant effectuée en boucle fermée, nous avons adapté la méthode de la variable instrumentale (IV) pour remédier au problème de la matrice d'observation bruitée. Récemment, une méthode d'identification originale ne nécessitant que la mesure des couples (grandeurs d'entrée) a été appliquée avec succès sur un robot industriel à 6 degrés de liberté (DDL). Cette méthode appelée DIDIM est une méthode erreur de sortie en boucle fermée (CLOE) basée sur une simulation en boucle fermée du robot. Les résultats expérimentaux ont montré que les résultats IV et DIDIM sont numériquement égaux. Dans ce papier, nous comparons ces deux méthodes grâce à une analyse basée sur les doubles moindres carrés (2SLS). Cette étude est expérimentalement validée sur un robot 2 DDL plan.

  • [hal-00638037] Dynamic identification of a 6 dof industrial robot with a closed-loop output error method needing only input data

    Off-line robot dynamic identification methods are mostly based on the use of the inverse dynamic model, which is linear with respect to the dynamic parameters. This model is sampled while the robot is tracking reference trajectories that excite the system dynamics. This allows using linear least-squares techniques to estimate the parameters. This method requires the joint force/torque and position measurements and the estimate of the joint velocity and acceleration, through the bandpass filtering of the joint position at high sampling rates. A new method called DIDIM has been proposed and validated on a 2 degree-of-freedom robot. DIDIM method requires only the joint force/torque measurement. It is a closed-loop output error (CLOE) method based on a closed-loop simulation of the robot using the direct dynamic model, the same structure of the control law, and the same reference trajectory for both the actual and the simulated robot. The optimal parameters minimize the 2-norm of the error between the actual force/torque and the simulated force/torque. A validation experiment on a 6 dof Staubli TX40 robot shows that DIDIM method is very efficient on industrial robots.

  • [hal-00638032] Dynamic Identification of a 6 Dof Robot without Joint Position Data

    Off-line robot dynamic identification methods are mostly based on the use of the inverse dynamic model, which is linear with respect to the dynamic parameters. This model is calculated with torque and position sampled data while the robot is tracking reference trajectories that excite the system dynamics. This allows using linear least-squares techniques to estimate the parameters. This method requires the joint force/torque and position measurements and the estimate of the joint velocity and acceleration, through the bandpass filtering of the joint position at high sampling rates. A new method called DIDIM (Direct and Inverse Dynamic Identification Models) has been proposed and validated on a 2 degree-of- freedom robot [1]. DIDIM method requires only the joint force/torque measurement. It is based on a closed-loop simulation of the robot using the direct dynamic model, the same structure of the control law, and the same reference trajectory for both the actual and the simulated robot. The optimal parameters minimize the 2-norm of the error between the actual force/torque and the simulated force/torque. A validation experiment on a 6 dof Staubli TX40 robot shows that DIDIM method is very efficient on industrial robots.

  • [hal-00638013] New results on the relation between tyre-road longitudinal stiffness and maximum available grip for motor car

    Tyre-road estimation methods have been the objective of many research programmes throughout the world. Most of these methods aim at estimating the friction components such as tyre longitudinal slip rate κ and friction coefficient μ in the contact patch area. In order to estimate the maximum available friction coefficient μmax , these methods generally use a probabilistic relationship between the grip obtained for low tyre excitations (such as constant speed driving) and the grip obtained for high tyre excitations (such as emergency braking manoeuvre). Confirmation or invalidation of this relationship from experimental results is the purpose of this paper. Experiments have been carried out on a reference track including several test boards corresponding to a wide textural spectrum. The main advantage of these experiments lies in the use of a vehicle allowing us to accurately build point-by-point relationship between κ and μ. This relationship has been determined for different tyres and pavement textures. Finally, the curves obtained are analysed to check the validity of the relationship between the current friction coefficient used by the car during normal driving conditions and μmax.

  • [hal-00637551] Dynamic identification of a 6 dof industrial robot with a closed-loop output error method

    Off-line robot dynamic identification methods are mostly based on the use of the inverse dynamic model, which is linear with respect to the dynamic parameters. This model is sampled while the robot is tracking reference trajectories that excite the system dynamics. This allows using linear least-squares techniques to estimate the parameters. This method requires the joint force/torque and position measurements and the estimate of the joint velocity and acceleration, through the bandpass filtering of the joint position at high sampling rates. Recently, the DIDIM method has been proposed and validated on a 2 degree-of-freedom robot. DIDIM method requires only the joint force/torque measurement. It is a closed-loop output error (CLOE) method based on a closed-loop simulation of the robot using the direct dynamic model, the same structure of the control law, and the same reference trajectory for both the actual and the simulated robot. The optimal parameters minimize the 2-norm of the error between the actual force/torque and the simulated force/torque. A validation experiment on a 6 dof Staubli TX40 robot shows that DIDIM method is very efficient on industrial robots.

  • [hal-00536953] Dynamic identification of a 6 dof industrial robot without joint position data

    Off-line robot dynamic identification methods are mostly based on the use of the inverse dynamic model, which is linear with respect to the dynamic parameters. This model is sampled while the robot is tracking reference trajectories that excite the system dynamics. This allows using linear least-squares techniques to estimate the parameters. This method requires the joint force/torque and position measurements and the estimate of the joint velocity and acceleration, through the bandpass filtering of the joint position at high sampling rates. A new method called DIDIM has been proposed and validated on a 2 degree-of-freedom robot. DIDIM method requires only the joint force/torque measurement. It is based on a closed-loop simulation of the robot using the direct dynamic model, the same structure of the control law, and the same reference trajectory for both the actual and the simulated robot. The optimal parameters minimize the 2-norm of the error between the actual force/torque and the simulated force/torque. A validation experiment on a 6 dof Staubli TX40 robot shows that DIDIM method is very efficient on industrial robots

  • [hal-00520261] Refined Instrumental Variable method for non-linear dynamic identification of robots

    The identification of the dynamic parameters of robot is based on the use of the inverse dynamic identification model which is linear with respect to the parameters. This model is sampled while the robot is tracking “exciting” trajectories, in order to get an over determined linear system. The linear least squares solution of this system calculates the estimated parameters. The efficiency of this method has been proved through the experimental identification of a lot of prototypes and industrial robots. However, this method needs joint torque and position measurements and the estimation of the joint velocities and accelerations through the bandpass filtering of the joint position at high sample rate. So, the observation matrix is noisy. Moreover identification process takes place when the robot is controlled by feedback. These violations of assumption imply that the LS estimator is not consistent. This paper focuses on the Refined Instrumental Variable (RIV) approach to over-come this problem of noisy observation matrix. This technique is applied to a 2 degrees of freedom (DOF) prototype devel-oped by the IRCCyN Robotic team.

  • [hal-00520258] A new closed-loop output error method for parameter identification of robot dynamics

    Off-line robot dynamic identification methods are mostly based on the use of the inverse dynamic model, which is linear with respect to the dynamic parameters. This model is sampled while the robot is tracking reference trajectories that excite the system dynamics. This allows using linear least-squares techniques to estimate the parameters. The efficiency of this method has been proved through the experimental identification of many prototypes and industrial robots. However, this method requires the joint force/torque and position measurements and the estimate of the joint velocity and acceleration, through the bandpass filtering of the joint position at high sampling rates. The proposed new method requires only the joint force/torque measurement. It is a closed-loop output error method where the usual joint position output is replaced by the joint force/torque. It is based on a closed-loop simulation of the robot using the direct dynamic model, the same structure of the control law, and the same reference trajectory for both the actual and the simulated robot. The optimal parameters minimize the 2-norm of the error between the actual force/torque and the simulated force/torque. This is a non-linear least-squares problem which is dramatically simplified using the inverse dynamic model to obtain an analytical expression of the simulated force/torque, linear in the parameters. A validation experiment on a 2 degree-of-freedom direct drive robot shows that the new method is efficient.

  • [hal-00508965] Identification des paramètres dynamiques des robots avec la méthode de la variable instrumentale

    L'identification des paramètres dynamiques des robots est généralement basée sur l'utilisation du modèle inverse qui est linéaire par rapport aux paramètres dynamiques à identifier. Afin d'obtenir un système surdéterminé, ce modèle est échantillonné pendant que le robot est piloté avec des mouvements excitants. La solution optimale est obtenue à l'aide des moindres carrés linéaires (MCL). L'efficacité de cette approche a été prouvée à travers de l'identification expérimentale de nombreux prototypes et robots industriels. Elle a été étendue à d'autres systèmes tels que les compacteurs, les voitures, les moteurs et les interfaces haptiques. Cependant, cette méthode nécessite une mesure précise d'une image du couple et de la position à une fréquence assez élevée. Elle nécessite également l'estimation des vitesses et accélérations par un filtrage passe bande de la position. La matrice d'observation est donc bruitée. De plus, l'identification est effectuée en boucle fermée du fait du caractère double intégrateur instable des robots. La méthode de la variable instrumentale (IV) traite du problème de la matrice d'observation bruitée et peut être statistiquement optimale. Ce papier se focalise sur cette technique et propose une extension de cette méthode. Elle est appliquée sur un robot 2 degrés de liberté (DDL) plan développé par l'équipe robotique de l'IRCCyN.

  • [hal-00508898] DIDIM: A New Method for the Dynamic Identification of Robots from only Torque Data

    Usually, the identification of the dynamic parameters of robot is based on the use of the inverse dynamic model which is linear with respect to the parameters. This model is sampled while the robot is tracking exciting trajectories. This allows using linear least squares techniques to estimate the parameters. The efficiency of this method has been proved through the experimental identification of a lot of prototypes and industrial robots. However, this method needs joint torque and position measurements and the estimation of the joint velocities and accelerations through the pass band filtering of the joint position at high sample rate. The new method overcomes these drawbacks. It is based on a closed loop simulation using the direct dynamic model. The optimal parameters minimize the 2 norms of the error between the actual torque and the simulated torque assuming the same control law and the same tracking trajectory. This non linear least squares problem dramatically is simplified using the inverse model to calculate the simulated torque.

  • [hal-00402785] Experimental Identification of the Inverse Dynamic Model : Minimal Encoder Resolution Needed Application to an Industrial Robot Arm and a Haptic Interface. In : Robot manipulators.

    Ce chapitre de livre, accessible par internet, décrit une méthode pour connaître l'influence de l'erreur de mesure sur le résultat final. Elle revient à utiliser une méthode classique utilisée dans l'évaluation de la robustesse des simulations numériques vis à vis de la troncature liée au codage des réels par les ordinateurs. (la méthode CESTAC :Contrôle et Estimation Stochastique des Arrondis de Calculs).

  • [hal-00402729] Identification of Robots using the Instrumental Variable Method

    The identification of the dynamic parameters of robot is based on the use of the inverse dynamic model which is linear with respect to the parameters. This model is sampled while the robot is tracking exciting trajectories, in order to get an over determined linear system. The linear least squares solution of this system calculates the estimated parameters. The efficiency of this method has been proved through the experimental identification of a lot of prototypes and industrial robots. However, this method needs joint torque and position measurements and the estimation of the joint velocities and accelerations through the pass band filtering of the joint position at high sample rate. So, the observation matrix is noisy. Moreover identification process takes place when the robot is controlled by feedback. These violations of assumption imply that the LS solution is biased. The Refined Instrumental Variable (SRIV) approach deals with this problem of noisy observation matrix and can be statistically optimal. This paper focuses on this technique which will be applied to a 2 degrees of freedom (DOF) prototype developed by the IRCCyN Robotic team.

  • [hal-00402723] Identification of Robots Dynamics with the Instrumental Variable Method

    The identification of the dynamic parameters of robot is based on the use of the inverse dynamic model which is linear with respect to the parameters. This model is sampled while the robot is tracking exciting trajectories, in order to get an over determined linear system. The linear least squares solution of this system calculates the estimated parameters. The efficiency of this method has been proved through the experimental identification of a lot of prototypes and industrial robots. However, this method needs joint torque and position measurements and the estimation of the joint velocities and accelerations through the pass band filtering of the joint position at high sample rate. So, the observation matrix is noisy. Moreover identification process takes place when the robot is controlled by feedback. These violations of assumption imply that the LS solution is biased. The Simple Refined Instrumental Variable (SRIV) approach deals with this problem of noisy observation matrix and can be statistically optimal. This paper focuses on this technique which will be applied to a 2 degrees of freedom (DOF) prototype developed by the IRCCyN Robotic team.

  • [hal-00402609] Using Robust Regressions and Residual Analysis to Verify the Reliability of LS Estimation : Application in Robotics

    Usually, the identification of the dynamic parameters of robot makes use of the inverse dynamic model which is linear with respect to the parameters. This model is sampled while the robot is tracking exciting trajectories. This allows using linear least squares (LS) techniques to estimate the parameters. The efficiency of this method has been proved through experimental identifications of a lot of prototypes and industrial robots. However, it is known that LS estimators are sensitive to outliers and leverage points. Thus, it may be helpful to verify their reliability. This is possible by using robust regressions and residual analysis. Then, we compare the results with those obtained with classical LS regression. This paper deals with this issue and introduces the experimental identification and residual analysis of an one degree of freedom (DOF) haptic interface using the Huber's estimator. To verify the pertinence of our analyses, this comparison is also performed on a medical interface consisting of a complex mechanical structure.


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Allocating imprecise safety targets in satellite-based localization systems used in railway signaling operations

SASSI, Insaf ; BEUGIN, Julie ; SALLAK, Mohamed ; AIT TMAZIRTE, Nourdine   /   (2020)

ESREL'20 - PSAM 15, 30th European Safety and Reliability Conference and the 15th Probabilistic Safety Assessment and Management Conference, ITALIE, 8p

https://www.esrel2020-psam15.org/

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ref decembre

On the robust guidance of users in road traffic networks

FARHI, Nadir ; HAJ SALEM, Habib ; LEBACQUE, Jean Patrick   /   (2014)

ICNAAM - International Conference of Numerical Analysis and Applied Mathematics, GRECE, 4p

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Démonstration de la sécurité opérationnelle de la téléconduite des trains : contexte, méthodologie et défis

BOUSSIF, Abderraouf ; COLLART-DUTILLEUL, Simon ; BARANOWSKI, François ; BEUGIN, Julie ; SCHON, Walter   /   (2020)

Lambda Mu 22, 22e Congrès de maîtrise des risques et de sûreté de fonctionnement, Les risques au coeur des transitions (e-congrès), FRANCE, pp312-320

https://www.imdr-lm22.fr

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Proposition d'une approche orientée modèles pour évaluer la sécurité des systèmes de signalisation ferroviaire utilisant les GNSS

HIMRANE, Ouail ; BEUGIN, Julie ; GHAZEL, Mohamed   /   (2020)

Lambda Mu 22, 22e Congrès de maîtrise des risques et de sûreté de fonctionnement. Les risques au coeur des transitions (e-congrès), FRANCE, 10p

https://www.imdr-lm22.fr/
https://hal.archives-ouvertes.fr/hal-03480709

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Allocating imprecise safety targets in satellite-based localization systems used in railway signaling operations

SASSI, Insaf ; BEUGIN, Julie ; SALLAK, Mohamed ; AIT TMAZIRTE, Nourdine   /   (2020)

ESREL'20 - PSAM 15, 30th European Safety and Reliability Conference and the 15th Probabilistic Safety Assessment and Management Conference, ITALIE, 8p

https://www.esrel2020-psam15.org/

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Towards a Model-Based Safety Assessment of Railway Operation Using GNSS Localization

HIMRANE , Ouail ; BEUGIN, Julie ; GHAZEL, Mohamed   /   (2020)

ESREL'20 - PSAM 15, 30th European Safety and Reliability Conference and the 15th Probabilistic Safety Assessment and Management Conference, ITALIE, 8p

https://www.esrel2020-psam15.org/

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Toward Formal Safety and Performance Evaluation of GNSS-based Railway Localisation Function

HIMRANE, Ouail ; BEUGIN, Julie ; GHAZEL, Mohamed   /   (2021)

IFAC-PapersOnLine, 54, 2, pp159-166, doi: 10.1016/j.ifacol.2021.06.049

https://www.sciencedirect.com/science/article/pii/S2405896321004973
https://doi.org/10.1016/j.ifacol.2021.06.049

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Towards a Specified Operational Design Domain for a Safe Remote Driving of Trains

TONK, Abhimanyu ; BOUSSIF, Abderraouf ; BEUGIN, Julie ; COLLART-DUTILLEUL, Simon   /   (2021)

ESREL 2021, 31st European Safety And Reliability Conference, FRANCE, 8p

https://easychair.org/smart-program/ESREL2021/

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From French National Signaling Systems to ERTMS: Considering the Evolution of Track-Side Systems

DE ALMEIDA PEREIRA, Dalay Israel ; HIMRANE, Ouail ; BON, Philippe ; BEUGIN, Julie   /   (2021)

International Journal of Signal Processing Systems, 9, 2, pp11-16

http://www.ijsps.com/index.php?m=content&c=index&a=show&catid=77&id=333

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Maxime Hachette, Alain L’hostis
Roadmap Towards A New European Culture Of Mobility. AESOP Annual Congress, Jul 2024, Paris, France
Maxime Hachette, Alain L’hostis
Feuille de route pour une nouvelle culture européenne de mobilité. 6e Rencontres Francophones Transport Mobilité (RFTM), Jun 2024, Bruxelles, Belgique
Daniel Rodriguez Cassolà, Andrea Ricci, Silvia Gaggi, Maxime Hachette, Alain l'Hostis
Deriving actionable policies from future visions: the REBALANCE project as an illustrative transition towards a sustainable mobility culture. The Discovery of the future in the social and Human sciences, University of Trento; UNESCO, Jun 2024, Trento (Italy), Italy
Dylan Moinse, Alain L’hostis, Ahad Amini Pishro, Ndèye Aïta Cissé, Xavier Lehmann, et al.
Revisiter le modèle de « nœud-lieu » pour évaluer et classifier les quartiers de gare de la région Hauts-de-France. Les variations de l'insertion urbaine des gares françaises et leur classification, Séminaire du Laboratoire Ville Mobilité Transport, Jun 2024, Paris, France
Ndèye Aïta Cissé, Maxime Hachette, Alain L’hostis
Proximity in Urban Evolution: The Significance of the 15-Minute City in European Transition. Proximity Planning, International Congress, Jun 2024, Madrid, Spain
Alain L’hostis, Ndèye Aïta Cissé, Maxime Hachette, Enrica Papa, Sylvain Petitet, et al.
Navigating the 15-minute City: First Learnings and Discussions from the Driving Urban Transitions Partnership. Deliverable 2.9, Driving Urban Transitions. 2024, pp.62
Dylan Moinse, Alain L'Hostis
La mise en pratique de parcours commentés en micro-mobilités : Interroger les pratiques intermodales inscrites dans des quartiers de gare de la région Hauts-de-France. Interroger et représenter les territoires à partir des expériences individuelles : L’apport des méthodes sensibles, Laboratoire Ville Mobilité Transport (LVMT), Mar 2023, Paris, France
Wassim Hached, Alain L'Hostis
Mobility Hubs, from exploring the concept to implementing and assessing its impact. Forum de l'AIT, Feb 2023, Paris, France
Alain L'Hostis, Ndèye Aïta Cissé, Maxime Hachette
The 15-minute city : a new avatar of proximity and a pillar of the European urban transition: An analysis of the academic knowledge produced by the ENUAC programme and collected by the ACUTE project for the present and future inspiration of urban practice.. Accessibility and Connectivity of the 15-minute-city ACUTE / UERA TWG Urban Accessibility and Connectivity, Oct 2023, Antwerp, Belgium
Wassim Hached, Alain L'Hostis, Albert Gragera
Exploring the concept of " mobility hubs " and assessing their impacts in two European cities. Transportation Research Procedia, 2023, 72, pp.3497-3504
10.1016/j.trpro.2023.11.763
Maxime Hachette, Alain L’hostis
Mobility Hubs, an Innovative Concept for Sustainable Urban Mobility?. Smart Cities, Springer International Publishing, pp.245-278, 2023, Studies in Energy, Resource and Environmental Economics, 978-3-031-35664-3
10.1007/978-3-031-35664-3_14
Alain L'Hostis, Ndèye Aïta Cissé, Maxime Hachette
Implementing the 15-minute city: An accessibility and proximity knowledge hub to bring research and practice closer together. 2023 Annual POLIS Conference, POLIS, Nov 2023, Leuven, Belgium
Maxime Hachette, Alain L'Hostis, Ndèye Aïta Cissé
La redynamisation du concept de "proximité" derrière la "ville à 15 minutes" : Un lifting à haute valeur ajoutée au service du marketing urbain ?. TERITRAM—MoTAU 2023, Dec 2023, Champs-sur-Marne (Marne-la-Vallée), France
Ahad Amini Pishro, Alain L’hostis, Dong Chen, Mojdeh Amini Pishro, Zhengrui Zhang, et al.
The Integrated ANN-NPRT-HUB Algorithm for Rail-Transit Networks of Smart Cities: A TOD Case Study in Chengdu. Buildings, 2023, 13 (8), pp.1944
10.3390/buildings13081944
Maxime Hachette, Eliane Propeck-Zimmermann, Alain L’hostis
Disposing of Daily Life Resources by Active Modes. Smart Cities, Springer International Publishing, pp.205-243, 2023, Studies in Energy, Resource and Environmental Economics, 978-3-031-35664-3
10.1007/978-3-031-35664-3_13
Maxime Hachette, Alain L'Hostis
La ville à 15 minutes, nouvel avatar du concept de proximité, pilier de la transition urbaine européenne : Une analyse des connaissances académiques produites par le programme ENUAC et collectées par le projet ACUTE, pour inspirer la pratique urbaine. « Journée d’études – GéoProximitéS : Villes petites et moyennes en transition : quels enjeux, pratiques et modèles de proximités ? », Sylvie Delmer; Marc Dumont, Jun 2023, Villeneuve d’Ascq, France
Johannes Moser, Fabian Wenner, Alain L’hostis
Visualising Transformations of Geographical Time–Space by Transport Systems. The Case of Germany, 1990–2020. KN - Journal of Cartography and Geographic Information, 2023
10.1007/s42489-023-00151-9
Dylan Moinse, Alain L'Hostis
Optimizing intermodal commuting by way of detours and breaks: Evidence of micromobility users in France. 2023
10.1016/j.jtrangeo.2024.103821
Wassim Hached, Alain L'Hostis, Albert Gragera
Investigating “mobility hubs“, and assessing their impacts. TRA, Nov 2022, Lisbon, Portugal. 2022
Wassim Hached, Alain l'Hostis
Vers une nouvelle culture européenne de mobilité. Rencontres Francophones Transport Mobilité (RFTM), Liser, Jun 2022, Esch-sur-Alzette, Luxembourg
Wassim Hached, Alain L'Hostis
Mobility Hubs, a lever for more sustainable mobility?. [Research Report] Université gustave eiffel; LVMT. 2022, pp.75
Wassim Hached, Alain L'Hostis, Albert Gragera
Discover a clearer vision of mobility hubs: With Mobi-Mix, from literature review to implementation, and assessment. TRA - Transport Research Arena, Nov 2022, Lisbon, Portugal
Alain L'Hostis, Maxime Hachette
Rockets shriveling the world. Journal of Transport Geography, 2022, 104, pp.103423
10.1016/j.jtrangeo.2022.103423
Dylan Moinse, Alain L'Hostis
The Combination of Collective and Individual Modes in the Hauts-de-France Region: A Quantitative Observation of On-board Small Vehicles. Union Géographique Internationale, Jul 2022, Paris, France
Dylan Moinse, Matthieu Goudeau, Alain L'Hostis, Thomas Leysens
Intermodal use of (e-)scooters with train in the Provence-Alpes-Côte d’Azur region: towards extended train stations areas?. Environmental Economics and Policy Studies, 2022
10.1007/s10018-022-00349-7
Maxime Hachette, Alain L'Hostis
Guidance for infrastructure and investment policies. Université gustave eiffel; LVMT. 2022, pp.44
Wassim Hached, Alain L'Hostis
Enhancing Mobility Hubs' insights with Mobi-Mix. e smartec and MOBI MIX Joint Final Conference, Nov 2022, Bruxelles, Belgium
Dylan Moinse, Alain L'Hostis
La intermodalitat entre el transport públic i els modes individuals. Une observació quantitativa de vehicles petits a bord. Vermuts de la Mobilitat, Institut d'Estudis Regionals i Metropolitans de Barcelona, Oct 2022, Barcelona, Spain. pp.39
Maxime Hachette, Alain L'Hostis
Policy Roadmap and Policy Guide. Université gustave eiffel; LVMT. 2022, pp.55
Maxime Hachette, Alain l'Hostis
Politics as Poetry, The strategy: Policy Roadmap and Policy Guide. REBALANCE final event, REBALANCE, Oct 2022, Lille, France
Maxime Hachette, Alain l'Hostis
Politics as Poetry, The strategy: Guidance for infrastructure and investment policies. REBALANCE final event, REBALANCE, Oct 2022, Lille, France
Alain L'Hostis, Jean-François Barbier
Villes qui se rapprochent, espace qui s'éloigne: outils visuels pour représenter le paradoxe de l'espace-temps géographique. Talweg - La distance, 2021, 06, pp60-67
Wassim Hached, Alain L'Hostis
Mobility hubs, new levers for sustainable urban mobility?. Environmental Sustainability & Smart-Cities, May 2021, Lille, France
Alain L'Hostis, Farouk Abdou
Courbes et cônes pour cartographier la possibilité du mouvement : une représentation tridimensionnelle de l’espace-temps géographique Chinois. 2021
Dylan Moinse, Matthieu Goudeau, Alain L'Hostis
An Analysis of Intermodal Use of E-scooters with train in the Provence-Alpes-Côte d’Azur Region, in France: Towards Extended Railway Station Areas?. Smart And Sustainable Cities Conference #3 - Session 5: Urban mobility, New Technologies and Urban Development, May 2021, Lille, France
Alain L'hostis, Farouk Abdou
What is the Shape of Geographical Time-Space? A three-dimensional Model made of Curves and Cones. ISPRS International Journal of Geo-Information, 2021, 10 (5), pp1-17
10.3390/ijgi10050340
Dylan Moinse, Matthieu Goudeau, Alain L'Hostis
Une analyse de l'usage intermodal des trottinettes avec le train dans la région Provence-Alpes-Côte d’Azur. Vers une extension des quartiers de gare ?. Future Days - Mobilité décarbonée (session 2), Nov 2021, Marne-la-Vallée, France
Wassim Hached, Alain L'Hostis
Le Mobility hub : un véritable allié de la mobilité urbaine durable ? Instauration d'un cadre conceptuel pour évaluer deux expériences Européennes à Valenciennes et Norfolk. JM RST 2021 : Journées Mobilités du Réseau Scientifique et Technique, Sep 2021, Lyon, France
Wassim Hached, Alain L'Hostis
Émergence des " Mobility hubs" comme outils d'une mobilité urbaine durable ? Définition et évaluation de deux expériences européennes à Valenciennes et Norfolk. Future Days, Nov 2021, Marne-la-Vallée, France
Claire Tollis, Alain L'Hostis, Redha Boubakour
Low Appetite for High Tech: When the Indifference of Inhabitants to Digital Mobilities Impedes a Smart Suburbs Project. International Journal of Urban Planning and Smart Cities (IJUPSC), 2020, 1 (1), pp.45-57
10.4018/IJUPSC.2020010104
Claire Tollis, Alain L'Hostis, Redha Boubakour
Low Appetite for High Tech: When the Indifference of Inhabitants to Digital Mobilities Impedes a Smart Suburbs Project in Loos-en-Gohelle, France. International Journal of Urban Planning and Smart Cities (IJUPSC), 2020, 1 (1), pp45-57
10.4018/IJUPSC.2020010104
Mirko Goletz, Sonja Haustein, Christina Wolking, Alain L'Hostis
Intermodality in European metropolises: The current state of the art, and the results of an expert survey covering Berlin, Copenhagen, Hamburg and Paris. Transport Policy, 2020, 94, pp.109-122
10.1016/j.tranpol.2020.04.011
Benoît Kloeckner, Alain L'Hostis, Thomas Richard
Contextual metrics. A mathematical definition for a comprehensive approach of geographical distances. Geographical Analysis, 2020
10.1111/gean.12260
Arnaud Can, Alain L'hostis, Pierre Aumond, Dick Botteldooren, Margarida C Coelho, et al.
The future of urban sound environments: Impacting mobility trends and insights for noise assessment and mitigation. Applied Acoustics, 2020, 170, pp1-8
10.1016/j.apacoust.2020.107518
Alain L'Hostis
All geographical distances are optimal. Cybergeo : Revue européenne de géographie / European journal of geography, 2020, 947
10.4000/cybergeo.35048
Claire Tollis, Alain L'Hostis, Redha Boubakour
Quand la participation des habitants retoque le projet d'un périurbain intelligent. Enseignements d'un programme de recherche-action sur les mobilités durables à Loos-en-Gohelle (62). revue Urbanités, 2019, 12, 11p
Nathan Bounie, François Adoue, Martin Koning, Alain L'Hostis
What value do travelers put on connectivity to mobile phone and Internet networks in public transport? Empirical evidence from the Paris region. Transportation Research : Part A, Policy and Practice, 2019, 130, pp158-177
10.1016/j.tra.2019.09.006
Eleni Chalkia, Maria Teresa de La Cruz, Imre Keseru, Alain L'Hostis, Beate Muller
Societal Trends Influencing Mobility and Logistics in Europe: A Comprehensive Analysis.. Towards User-Centric Transport in Europe, Challenges, Solutions and Collaborations Challenges, Solutions and Collaborations, Springer Nature, pp. 31-49, 2018, Lecture Notes in Mobility
10.1007/978-3-319-99756-8_3
Francis Papon, Alain L'Hostis
La mobilité produit l'urbanisme, et inversement. La jaune et la rouge [revue mensuelle de la société amicale des anciens élèves de l'Ecole Polytechnique], 2018, 738, 5p
Alain L'Hostis, Thomas Leysens, Liu Liu
Contribution de la future ligne ferroviaire à grande vitesse Tours-Bordeaux au développement des réseaux des villes, une évaluation par le potentiel de contact. Cybergeo : Revue européenne de géographie / European journal of geography, 2018
10.4000/cybergeo.29365
Alain L'Hostis, Liu Liu, Thomas Leysens
Using contact potential measurements to analyse future intercity links made possible by the Tours-Bordeaux High-Speed Rail line. Belgeo : Revue Belge de Géographie, 2017, 1
10.4000/belgeo.19584
Hélène Jacquot-Guimbal, Jean-Bernard Kovarik, Latifa Oukhellou, Alain L'Hostis, Guillaume Uster
Réussir les transitions que nous sommes en train de vivre. Point de vue de la directrice de l'Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux - Ifsttar. TEC Mobilité intelligente [Revue TEC : Transport Environnement Circulation], 2017, 232, 2p
Alain L'Hostis
Detour and break optimising distance, a new perspective on transport and urbanism. Environment and Planning B: Planning and Design, 2017, 44 (3), pp.441-463
10.1177/0265813516638849
Alain L'Hostis, Claude Soulas, Bogdan Vulturescu
A Multi‐criteria approach for choosing a new public transport system linked to urban development: a method developed in the Bahn.Ville project for a tram‐train scenario in the Saint‐Étienne region. RTS. Recherche, transports, sécurité, 2017, 2016 (01-02), pp.17-25
10.4074/S0761898016002028
Anne Aguilera-Belanger, Nacima Baron, J
Berrada, O. Bonin, V. Boutueil, et al.. Les mots du LVMT (Laboratoire Ville Mobilité Transport). 2017
Eleni Chalkia, Beate Mueller, Alain L'Hostis
The role of societal resistance in transportation innovation. 8th International Congress on Transportation Research: Transportation by 2030: Trends and perspectives, Sep 2017, THESSALONIKI, France. pp.12P
10.5281/zenodo.1216917
Alain L'Hostis
Les périmètres du Transit Oriented Development : caractérisation de la relation entre ville et transport collectifs. 2016
Alain L'Hostis, Beate Muller, Gereon Meyer, Annette Bruckner, Erzsebet Foldesi, et al.
MOBILITY4EU - D2.1 - Societal needs and requirements for future transportation and mobility as well as opportunities and challenges of current solutions. [Research Report] IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux. 2016, 85p
Alain L'Hostis, Leysens Thomas, Liu Liu
"Potentiel de contact" des villes. FNAU. Abécédaire Systèmes territoriaux régionaux, , 2016
Alain L'Hostis
Shriveling time-space relief representation of the world at the time of Concorde 1977-2003. Computer graphics. France. 2016
Alain L'Hostis
Misunderstanding geographical distances: two errors and an issue in the interpretation of violations of triangle inequality. Cybergeo : Revue européenne de géographie / European journal of geography, 2016
Alain L'Hostis
The first unparametrized image of the shrivelled world. author A L'Hostis 2016. Computer graphics. France. 2016
Monica Coralli, Alain L'Hostis
Le train et la ville : un jeu de distances et de proximités. 2015
Alain L'Hostis, Sébastien Darchen
Characterising Transit Oriented Development in the Paris metropolitan region: what type of TOD are they?. 2015
Alain L'Hostis
Le détour, la pause et l'optimalité, Essai sur la distance et ses apports au transport et à l'urbanisme. Architecture, aménagement de l'espace. Université Paris-Est, 2014
Liu Liu, Alain L'Hostis
Transport and Land Use Interaction: A French Case of Suburban Development in the Lille Metropolitan Area (LMA). Transportation Research Procedia, 2014, Sustainable Mobility in Metropolitan Regions. mobil.TUM 2014. International Scientific Conference on Mobility and Transport. Conference Proceedings, 4, pp.120 - 139
10.1016/j.trpro.2014.11.011
Alain L'Hostis, E Alexandre, M Appert, C Araud-Ruyant, M Basty, et al.
Concevoir la ville à partir des gares, rapport final du Projet Bahn.Ville 2 sur un urbanisme orienté vers le rail, octobre. 2013
Alain L'Hostis, E Alexandre, M Appert, C Araud-Ruyant, M Basty, et al.
Rapport intermédiaire du projet Bahn.Ville 2 recherche action pour un urbanisme orienté vers le rail dans la région stéphanoise. 2013
Alain L'Hostis
Theoretical models of time-space: the role of transport networks in the shrinking and shrivelling of geographical space. Rozenblat Céline, Mélançon Guy. Multilevel Analysis and visualization of Geographical Networks, Springer, pp.55-66, 2013, Methodos Series, vol. 11
Anne Aguilera, Alain L'Hostis, Neil Paulley
Land-use and transport interactions: Towards a research agenda. European Transport Conference, Sep 2013, Francfort, Germany. pp.x-x
L Halbert, M-N Comin, C Ducruet, Alain L'Hostis, D Peeters, et al.
Analyse comparative des métropoles européennes, rapport final, DATAR. 2013
Alain L'Hostis, Claude Soulas, Gebhard Wulfhorst
La ville orientée vers le rail et l'intermodalité. Gérard Brun. Ville et mobilité, nouveaux regards, Economica, pp.115-126, 2013, Méthodes et Approches, 978-2-7178-6627-8
Alain L'Hostis
Contactability p. 85-90 in Accessibility Instruments for Planning Practice edited by A. Hull, C. Silva, L. Bertolini, COST action Accessibility Instruments. 2013
Alain L'Hostis, Thomas Leysens
Les méthodes de mesure et de représentation de l'accessibilité dans les méthodes d'évaluation des projets de transport interurbains et périurbains de voyageurs: méthode, indicateurs, applications et limites de la contactabilité.. 2012
Petter Christiansen, Olav Eidhammer, Jardar Andersen, Alain L'Hostis, G Adamos, et al.
Case studies: results and synthesis projet 7FP CLOSER (Connecting LOng and Short-distance networks for Efficient Transport) Rapport de recherche Deliverable 5.2 project européen CLOSER.. [Research Report] European Commission. 2012
Yves Crozet, Alain L'Hostis, Benjamin Collin, Anne-Laure Jeannez
Transport public et développement urbain durable en France et aux USA; partie relative au cas français. 2012
Alain L'Hostis
Métropoles sans aéroport international ? La contribution de l'intermodalité TGV-aérien au potentiel de contact des villes françaises dans le réseau des métropoles européennes. Colloque : L'intermodalité en questions - Durabilité, accessibilité, mobilité, Jun 2012, Montpellier, France
Alain L'Hostis, Alexis Conesa
Defining Intermodal Accessibility. in A Banos and Th Thévenin (eds). Geographical Information and Urban Transport System, Geographical Information Series, ISTE/Wiley, pp. 53-81, 2011
Nathanail Eftithia, G Adamos, L Parra, E Ruiz-Ayucar, Alain L'Hostis, et al.
Deliverable D32 Core indicators for the interconnection between short and long-distance transport networks ; projet 7FP CLOSER (Connecting LOng and Short-distance networks for Efficient Transport); September 2011. [Research Report] European Commission. 2011
Ludovic Halbert, Patricia Cicille, Marie-Noëlle Cornin, César Ducruet, Alain L'Hostis, et al.
Analyse comparative des métropoles européennes. 2011, 334 p
Alain L'Hostis
Le foncier des environs de gare, enjeu d'un développement urbain orienté vers le rail. Etudes foncières, 2011, pp.3
Alain L'Hostis
Le foncier des environs de gare, enjeu d'un développement urbain orienté vers le rail. Etudes foncières, 2011, 3p
Eftihia Nathanail, G
Adamos, Alain L'Hostis, L. Parra, E. Ruiz-Ayucar, et al.. Deliverable D4.1 Analysis of the Decision-Making framework, projet 7FP CLOSER (Connecting LOng and Short-distance networks for Efficient tRansport), july 2011. Deliverable D4.1, 2011
Alain L'Hostis
Les transports du polycentrisme européen, une analyse par la contactabilité entre métropoles. 11ème colloque du groupe de travail Mobilités Spatiales et Fluidité Sociale (MSFS) de l'Association Internationale des Sociologues de Langue Française (AISLF) : Mobilités spatiales et ressources métropolitaines : l'accessibilité en questions, Mar 2011, Grenoble, France
Alain L'Hostis
Contactability measures for assessing the competitiveness of European cities and networks of cities: the potential for high-speed rail and air to support a polycentric development. European Transport Conference ETC 2011, Oct 2011, Glasgow, United Kingdom
Alain L'Hostis, Thomas Leysens, Johannes Keller
Fostering rail-based accessibility by land management. European Transport Conference ETC 2011, Oct 2011, Glasgow, United Kingdom
Ludovic Halbert, Marie Noëlle Comin, César Ducruet, Alain L'Hostis, D
Peeters, et al.. Analyse comparative des métropoles européennes. 2011, 248 p
B
Vulturescu, Alain L'Hostis, C. Soulas. Simulation des temps de parcours du transport ferroviaire régional du bassin de vie stéphanois dans le cadre du projet Bahn.Ville. RTS. Recherche, transports, sécurité, 2011, 27 (4), pp.283-297
10.1007/s13547-011-0027-z
Alain L'Hostis
El predial en el entorno de una estación ferroviaria Implicación de un desarrollo urbano orientado hacia el riel. Transporte y ciudad, foro de la movilidad, 2011, 3, pp.40-42
Alain L'Hostis, Alexis Conesa
Définir l'accessibilité intermodale. Arnaud Banos, Thomas Thévenin. Systèmes de Transport Urbain, Hermès, pp.24, 2010, IGAT
Moritz Lennert, Gilles van Hamme, Catherine Patris, Maciej Smętkowski, Adam Płoszaj, et al.
FOCI Future Orientation for Cities. 2010
G Wulfhorst, Alain L'Hostis, H Pretsch, S Morkisz, V Stransky, et al.
An urbanism oriented towards rail in Germany and France, three main findings of a research-action program. General Proceedings of the 12th World Conference on Transport Research Society, Jul 2010, Lisbon, Portugal
Alain L'Hostis, Sandra Bozzani-Franc
Contactability measures for assessing urban competitiveness. 2010
Sandra Bozzani-Franc, Thomas Leysens, Alain L'Hostis, Claude Soulas, Bogdan Vulturescu
Un Urbanisme orienté vers le rail illustré par le projet Bahn.Ville. Claude Soulas, Martine Wahl. Innovation dans les transports guidés urbains et régionaux, Hermès, p. 253-302, 2010
Alain L'Hostis, Gebhard Wulfhorst, Sabina Morkisz, Hélène Pretsch, Vaclav Stransky, et al.
An Urbanism oriented towards rail in Germany and France: selected findings of the Bahn.Ville project. 2010
Alain L'Hostis
The shriveled USA: Representing time-space in the context of metropolitanization and the development of high speeds. Journal of Transport Geography, 2009, 17, pp.433-439
10.1016/j.jtrangeo.2009.04.005
Alain L'Hostis, Elsa Alexandre, Manuel Appert, Catherine Araud-Ruyant, Marius Basty, et al.
Concevoir la ville à partir des gares, Rapport final du Projet Bahn.Ville 2 sur un urbanisme orienté vers le rail. 2009
Alain L'Hostis, S Bozzani-Franc
Air and high-speed rail, territorial impact and opportunities for metropolitan performance. LINK european project final conference, Jun 2008, Köln, Germany
Alain L'Hostis
Mesurer l'accessibilité intermodale pour mieux relier l'organisation des réseaux et l'organisation territoriale dans la région urbaine de Lille. MobilTUM, Apr 2008, München, Allemagne
Reg Harman, Philippe Menerault, Alain L'Hostis
Public transport in cities and regions, Facing an uncertain future?. Ph. Booth, M. Breuillard, C. Fraser, D. Paris. Spatial Planning Systems of Britain and France, A comparative analysis, Routledge, pp.188-205, 2007
Alain L'Hostis
Graph theory and representation of distances : chronomaps, and other representations. Mathis Ph. Graphs and networks, multilevel modelling,, Lavoisier, pp.177-191, 2007
Alain L'Hostis, Gebhard Wulfhorst, Benjamin Puccio, Catherine Araud-Ruyant
Urbanisme et transport dans les régions urbaines : enjeux et perspectives d'un urbanisme orienté vers le rail. RTS. Recherche, transports, sécurité, 2007, 94, pp.11-26
10.3166/rts.94.11-26
Alexis Conesa, Alain L'Hostis
Accessibilité horaire des transports collectifs, un outil d'analyse pour la relation entre transport et aménagement du territoire. Journée d’échanges sur l’accessibilité des voyageurs en interurbain : enjeux et méthodes, Réseau des Economistes Transport et Aménagement (RETA), Apr 2007, La Défense, Paris, France
Sabine Avril, Sandra Bozzani-Franc, Alain L'Hostis, Francesca Pico, Jacques Bize, et al.
Strategic Research Agenda for Urban Mobility. 2007
Alain L'Hostis, Hervé Baptiste
A Transport network for a City network: Analysing the quality of the public transport service in the Nord-Pas-de-Calais region. European Journal of Spatial Development, 2006, 20, 18 p
Philippe Menerault, Alain Barré, Alexis Conesa, Alain L'Hostis, Paola Pucci, et al.
Multipolarités urbaines et nouvellles organisations intermodales. 2006
Alain L'Hostis, Sandra Bozzani
Lille, une métropole sans aéroport international ? Analyse de la performance territoriale du nœud air-fer à grande vitesse de Roissy Charles de Gaulle dans l'accessibilité lilloise. RTS. Recherche, transports, sécurité, 2006, 46, pp.157-170
10.3166/rts.92.155-170
Philippe Menerault, Alain Barré, Alexis Conesa, Alain L'Hostis, Paola Pucci, et al.
Multipolarités urbaines et nouvelles organisations intermodales. 2006, 126p
Céline Rozenblat, G
Melançon, D. Auber, C. Discazeaux, Alain L'Hostis, et al.. Worldwide Multi-Level Networks of Cities Emerging From Air Traffic (2000). Rubén C. Lois González. Urban changes in differents scales. Systems and structures, University of Santiago de Compostela, Publications Service, pp.n.c., 2006
Alain L'Hostis, Philippe Menerault, Christophe Decoupigny
Assessing Spatial Planning Policy with Accessibility Indicators: the case of Lille's Metropolis Scenario. Beuthe M., Himanen V., Reggiani A., Zamparini L. Transport Development and Innovation in an Evolving world, Springer, pp.293-312, 2004
Alain L'Hostis
De l'Espace contracté à l'espace chiffonné : Apports de l'animation à la cartographie en relief des distances-temps modifiées par les réseaux de transport rapides. Revue Internationale de Géomatique, 2003, 13, pp.69-80
Philippe Menerault, Alain L'Hostis
Projets de grande vitesse ferroviaire en Grande-Bretagne : lignes ou réseau ?. Hommes et Terres du Nord, 2003, 3, pp.43-54
Alain L'Hostis
Théorie des graphes et représentations des distances : chronocartes et autres représentations. Philippe Mathis. Graphes et réseaux, modélisation multiniveau, Lavoisier, pp.215-230, 2003, Information Géographique et Aménagement du Territoire
Alain L'Hostis, Christophe Decoupigny, Philippe Menerault, Nicolas Morice
Cadencement et intermodalité de l'offre en transport collectif en Nord-Pas-de-Calais, Analyse et propositions d'amélioration. 2001, 121p
Philippe Menerault, Alain L'Hostis
Analyse des relations réseaux/territoires : restructuration de l'offre ferroviaire de l'axe Lille/Valenciennes/Jeumont. 2000, 85p
Alain L'Hostis
Images de synthèse pour l'Aménagement du territoire : la déformation de l'espace par les réseaux de transport rapide. Géographie. Université François Rabelais - Tours, 1997. Français
Alain L'Hostis
Transports et aménagement du territoire : cartographie par images de synthèse d'une métrique réseau. M@ppemonde, 1996, 3, pp.37-43
Alain L'Hostis
The first time-space relief cartography, analog photo of cathodic screen, Europe. Computer graphics. France. 1994
Alain L'Hostis, Philippe Mathis, Nadine Polombo
Les grandes vitesses. Alain Bonnafous; François Plassard; Bénédicte Vulin. Circuler demain, Datar / éditions de l'aube, 1993, 2-87678-126-3

test geoloc

Tijero, E. Domínguez, Fernández, L. Martínez, Herrero Zarzosa, Jorge Javier, Ibañez-Guzmán, J., Stawiarski, E., Xu, Philippe, Avellone, G., Pisoni, F., Falletti, E., ORTIZ, Miguel, 2018, High Accuracy Positioning Engine with an Integrity Layer for Safety Autonomous Vehicles, Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation , MIAMI, ETATS-UNIS, 2018-09-24, Wiley-Blackwell, pp. 1566-1572, DOI: 10.33012/2018.15843

https://www.ion.org/publications/abstract.cfm?articleID=15843

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ANTIGNY, Nicolas, SERVIERES, Myriam, RENAUDIN, Valérie, 2018, Continuous Pose Estimation for Urban Pedestrian Mobility Applications on Smart-Handheld Devices, 2018 International Conference on Indoor Positioning and Indoor Navigation (IPIN), Nantes, FRANCE, 2018-09-24, IEEE, 8 p, DOI: 10.1109/IPIN.2018.8533680

https://ieeexplore.ieee.org/abstract/document/8533680/citations#citations

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TAIA ALAOUI, Fadoua, 2018, Navigation des personnes aux moyens des technologiesdes smartphones et des données d'environnements cartographiés, Thèse de doctorat de l'école centrale de Nantes, Spécialité: Signal, Image, Vision, Université Bretagne-Loire, 153 p

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ORTIZ, Miguel, PERUL, Johan, TORRES-SOSPEDRA, Joaqim, RENAUDIN, Valérie, 2018, Datasets and Supporting Materials for the IPIN 2018 Competition Track 4, IPIN 2018, 9th International conference on Indoor Positioning and Indoor Navigation, Nantes, FRANCE, 2018-09-24, DOI: 10.5281/zenodo.3228012

https://zenodo.org/record/3228012#.XPUsb4_fPmE

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ANTIGNY, Nicolas, SERVIERES, Myriam, RENAUDIN, Valérie, 2018, Continuous Pose Estimation for Urban Pedestrian Applications on Hand-held Mobile Device, IPIN' 18, International Conference on Indoor Positioning and Indoor Navigation, Nantes, France, 2018-09-24, Institute of Electrical and Electronics Engineers - IEEE

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ABID, Mahdi, RENAUDIN, Valérie, ROBERT, Thomas, AOUSTIN, Yannick, LE CARPENTIER, Eric, 2018, A Simulation-based Approach to Generate Walking Gait Accelerations for Pedestrian Navigation Solutions, IPIN'18, International Conference on Indoor Positioning and Indoor Navigation, Nantes, France, 2018-09-24, Institute of Electrical and Electronics Engineers - IEEE, 8 p.

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PERUL, Johan, RENAUDIN, Valérie, 2018, Building individual inertial signals models to estimate PDR walking direction with smartphone sensors, IPIN'18, International Conference on Indoor Positioning and Indoor Navigation, NANTES, FRANCE, 2018-09-24, September, Institute of Electrical and Electronics Engineers - IEEE, p. 24-27

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ZHU, Ni, 2018, Modélisation du canal de propagation GNSS en milieu contraint: Contribution à l'amélioration de la qualité de service de géolocalisation , Thèse de Doctorat, Discipline Sciences de l'information et de la communication, Université de Lille, 220p

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ABIB, Mahdi, 2018, Walking gait features extraction and characterization using wearable devices, Thèse de doctorat de l'Ecole Centrale de Nantes, spécialité : Automatique, productique, robotique, L'ÉCOLE CENTRALE DE NANTES, Ecole Centrale de Nantes, 168

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ANTIGNY, Nicolas, 2018, Estimation continue de la pose d'un équipement tenu en main par fusion des données visio-inertielles pour les applications de navigation piétonne en milieux urbains, Thèse de doctorat. Spécialité : Signal, Image, Vision, Université Loire Bretagne, 114 p

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RENAUDIN, Valérie, 2018, Integrating human dimension in the development of pedestrian navigation, ITSNT 2018, International Technical Symposium on Navigation and Timing, TOULOUSE, FRANCE, 2018-11-13, 34p

http://www.itsnt.fr/

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RENAUDIN, Valérie, KHAMITOVA, Aigul, ORTIZ, Miguel, 2018, IPIN 2018 - Ninth International Conference On Indoor Positioning And Indoor Navigation, IPIN 2018, Nantes, France, 2018-09-24, IFSTTAR, 183 p.

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MANZINI, Nicolas, ORCESI, André, THOM, Christian, CLEMENT, Antoine, BOTTON, Serge, ORTIZ, Miguel, DUMOULIN, John, 2018, Structural Health Monitoring using a GPS sensor network, EWSHM'18, 9th European Workshop on Structural Health Monitoring Series, MANCHESTER, ROYAUME-UNI, 2018-07-10, British Institute of Non Destructive Testing, 12 p.

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MANZINI, Nicolas, ORCESI, André, THOM, Christian, BOTTON, Serge, CLEMENT, Antoine, ORTIZ, Miguel, DUMOULIN, John, 2018, Use of low-cost GNSS receivers for Structural Health Monitoring, 40th IABSE Symposium : Tomorrow's Megastructures, NANTES, FRANCE, 2018-09-19, International Association for Bridge and Structural Engineering - IABSE, 8 p.

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RENAUDIN, Valérie, 2018, Human dimensions of navigation, The Israel Navigation Workshop and Exhibition INWE18, Hertzliya, ISRAEL, 2018-01-29

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RENAUDIN, Valérie, 2018, Préparation de la compétition internationale de localisation intérieure IPIN : cartographie de parcours piétons, Forum de l'Association Française de Topographie , Anglet, FRANCE, 2018-03-29

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RENAUDIN, Valérie, MOREAU, Nicolas, BILLEY, Antoine, LAMBLIN, Alexandre, VOS, Jasper, PERUL, Johan, ORTIZ, Miguel, 2018, Préparation de la compétition internationale de localisation intérieure IPIN : cartographie de parcours piétons, XYZ, 155, Association Française de Topographie - AFT, pp. 17-21

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ANTIGNY, Nicolas, SERVIERES, Myriam, RENAUDIN, Valérie, 2018, Fusion of 3D GIS, Vision, Inertial and Magnetic Data for Improved Urban Pedestrian Navigation and Augmented Reality Applications, Navigation, WILEY, DOI: 10.1002/navi.254

http://doi.wiley.com/10.1002/navi.254

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PEYRET, François, GILLIERON, Pierre Yves, EUROPEAN COOPERATION IN THE FIELD OF SCIENTIFIC AND TECHNICAL RESEARCH - COST, 2018, SaPPART Guidelines: Performance assessment of positioning terminals, Techniques et méthodes, TMI 3, Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux - IFSTTAR, 45p

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DOMINGUEZ TIJERO, Enrique, CHAMORRO MORENO, A, FERNANDEZ CALZON, Maria-theresa, GARCIA, J, IBANEZ GUZMAN, J, XU, Philippe, AVELLONE, GIUSEPPE, PISONI, Fabio, FALLETTI, Emmanuela, ORTIZ, Miguel, 2019, Autonomous vehicle high-accuracy position and integrity engine performance results , 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019), MIAMI, ETATS-UNIS, 2019-09-16, Institute of Navigation, 9 p, DOI: 10.33012/2019.16872

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PERUL, Johan, RENAUDIN, Valérie, 2019, Fusion of Attitude and Statistical Walking Direction Estimations with Time-Difference Carrier Phase Velocity Update for Pedestrian Dead Reckoning Method, ION GNSS+'19, 32nd International Technical Meeting of the Satellite Division of The Institute Of Navigation, MIAMI, ETATS-UNIS, 2019-09-16, WILEY, p. 367-377, DOI: 10.33012/2019.17035

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ZHU, Ni, ORTIZ, Miguel, RENAUDIN, Valérie, 2019, Seamless Indoor-Outdoor Infrastructure-free Navigation for Pedestrians and Vehicles with GNSS-aided Foot-mounted IMU, 2019 International Conference on Indoor Positioning and Indoor Navigation (IPIN), PISE, ITALIE, 2019-09-30, Institute of Electrical and Electronics Engineers - IEEE, 8 p.

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GRENIER, Antoine, RENAUDIN, Valérie, 2019, Efficient Use of SSR RTCM Streams For Real-Time Precise Point Positioning on Smartphones, WPNC19, 16th Workshop on Positioning, Navigation and Communications, BREME, ALLEMAGNE, 2019-10-23, Institute of Electrical and Electronics Engineers - IEEE, 28 p.

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GRENIER, Antoine, RENAUDIN, Valerie, 2019, Efficient Use of SSR RTCM Streams For Real-Time Precise Point Positioning on Smartphones Main objective Investigate precise positioning , in real-time , on Android Device using RTCM streams for low computation costs, WPNC'19, 16th Workshop on Positioning, Navigation and Communications, BREME, ALLEMAGNE, 2019-10-23, Institute of Electrical and Electronics Engineers - IEEE, p. 1-18

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RENAUDIN, Valérie, ORTIZ, Miguel, PERUL, Johan, TORRES-SOSPEDRA, Joaquín, RAMON JIMENEZ, Antonio, PEREZ-NAVARRO, Antoni, MENDOZA-SILVA, German Martin, SECO, Fernando, LANDAU, Yaël, MARBEL, Retival, BEN-MOSHE, Boaz, ZHENG, Xingyu, YE, Feng, KUANG, Jian, LI, Yu, NIU, Xiaoji, LANDA, Vlad, HACOHEN, Shlomi, SHVALD, Nir, LU, Shuanhua, UCHIYAMA, Ideaki, THOMAS, Diego, SHIMADA, Atsushi, TANIGUCHI, Rin-Ichiro, KRONENWETT, Nikolai, VLADIMIROV, Blagovest, LEE, Soyeon, CHO, Eunyoung, JUN, Sungwoo, LE, Changeun, -, -, 2019, Evaluating Indoor Positioning Systems in a Shopping Mall: The Lessons Learned From the IPIN 2018 Competition, IEEE ACCESS, 7, Institute of Electrical and Electronics Engineers - IEEE, 148594 - 148628, DOI: 10.1109/ACCESS.2019.2944389

https://ieeexplore.ieee.org/document/8852722/keywords#keywords

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ANTIGNY, Nicolas, UCHIYAMA, Hideaki, SERVIERES, Myriam, RENAUDIN, Valérie, THOMAS, Diego, TANIGUCHI, Rin-ichiro, 2019, Solving Monocular Visual Odometry Scale Factor with Adaptive Step Length Estimates for Pedestrians Using Handheld Devices, sensors, 19, Multidisciplinary Digital Publishing Institute - MDPI, 1-18, DOI: 10.3390/s19040953

https://www.mdpi.com/1424-8220/19/4/953

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PERUL, Johan, RENAUDIN, Valérie, 2019, Learning individual models to estimate the walking direction of mobile phone users, IEEE Sensors Journal, 10 p, IEEE, DOI: 10.1109/JSEN.2019.2940138

https://ieeexplore.ieee.org/document/8827533

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RENAUDIN, Valérie, ORTIZ, Miguel, 2019, véhicules autonomes, 59e congrès annuel du club EEA , RENNES, FRANCE, 2019-06-12

https://clubeea2019.sciencesconf.org/

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RENAUDIN, Valérie, 2019, Indoor positioning: towards an infinite number of technologies?, 10th Chinese Satellite Navigation Conference, BEIJING, CHINE, 2019-05-22, 20p

https://www.beidou.org/

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PERUL, Johan, 2020, Localisation autonome par apprentissage des dynamiques de déplacement en transport multimodal, Thèse de doctorat, Mathématiques et Sciences et Technologies de l'Information et de la Communication. Spécialité : Automatique, Productique, Robotique, Ecole centrale de Nantes, 156p

https://www.ec-nantes.fr/centrale-nantes/actualites/soutenance-de-these-de-johan-perul-ed-mathstic

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ZHU, Ni, ORTIZ, Miguel, RENAUDIN, Valérie, ICHARD, Cécile, RICOU, Sander, 2020, Dataset of the intermediate competition in Challenge MALIN: Indoor-outdoor inertial navigation system data for pedestrian and vehicle with high accuracy references in a context of firefighter scenario, Data in Brief, 34, Elsevier, 14p, DOI: 10.1016/j.dib.2020.106626

https://www.sciencedirect.com/science/article/pii/S2352340920315067

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AL ABIAD, Naïma, RENAUDIN, Valérie, ROBERT, Thomas, 2020, Assessing gait variability from cellphone IMU placed in several locations: a feasibility study, Computer Methods in Biomechanics and Biomedical Engineering, 23, S1, TAYLOR AND FRANCIS, s1-s3, DOI: 10.1080/10255842.2020.1811490

https://www.tandfonline.com/doi/full/10.1080/10255842.2020.1811490

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ORTIZ, Miguel, BENMEZIANE , Karim, 2020, CEN standards in GNSS for Road/Automotive. Benefits of using EN16803 series for the automotive sector, UCP, 3rd edition of the User Consultation Platform, Virtuel, 2020-12-01, 15p

https://www.gsa.europa.eu/user-consultation-platform-2020-ucp

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MANZINI, Nicolas, ORCESI, André, THOM, Christian, BROSSAULT, Marc-Antoine, BOTTON, Serge, ORTIZ, Miguel, DUMOULIN, John, 2020, Performance analysis of low-cost GNSS stations for structural health monitoring of civil engineering structures, Structure and Infrastructure Engineering, Taylor & Francis Ltd, 61 p., DOI: 10.1080/15732479.2020.1849320

https://hal.archives-ouvertes.fr/hal-03032752
https://doi.org/10.1080/15732479.2020.1849320

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RENAUDIN, Valérie, ORTIZ, Miguel, RAGOIN, Céline, 2020, Positionnement GNSS précis sur smartphone : une réalité proche ?, Groupede Travail GNSS et Positionnementde la CNIG, Bouguenais, FRANCE, 2020-10-16, 13p

http://cnig.gouv.fr/?page_id=12592

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POTORTÌ, FRANCESCO, PARK, SANGJOON, CRIVELLO, ANTONINO, PALUMBO, FILIPPO, GIROLAMI, MICHELE, BARSOCCHI, PAOLO, LEE, SOYEON, TORRES-SOSPEDRA, JOAQUÍN, JIMENEZ, ANTONIO RAMÓN, PÉREZ-NAVARRO, ANTONI, MENDOZA-SILVA, GERMÁN M., SECO, FERNANDO, ORTIZ, Miguel, PERUL, JOHAN, RENAUDIN, Valérie, KANG, HYUNWOONG, PARK, SOYOUNG, LEE, JAE-HONG, PARK, CHAN GOOK, HA, JISU, HAN, JAESEUNG, PARK, CHANGJUN, KIM, KEUNHYE, LEE, YONGHYUN, GYE, SEUNGHUN, LEE, KEUMRYEOL, KIM, EUNJEE, CHOI, JEONGSIK, CHOI, YANG-SEOK, TALWAR, SHILPA, CHO, SEONG YUN, BEN-MOSHE, BOAZ, SCHERBAKOV, ALEX, ANTSFELD, LEONID, SANSANO-SANSANO, EMILIO, CHIDLOVSKII, BORIS, KRONENWETT, NIKOLAI, PROPHET, SILVIA, LANDAU, YAEL, MARBEL, REVITAL, ZHENG, Lingxiang, PENG, Ao, LIN, Zhichao, WU, Bang, MA, Chengqoi, POSLAD, Stefan, SELVIAH, David, WU, Wei, MA, Zixiang, ZHANG, Wenchao, 2020, The IPIN 2019 Indoor Localisation Competition - Description and Results, IEEE Access, Institute of Electrical and Electronics Engineers Inc., 46p, DOI: 10.1109/ACCESS.2020.3037221

10/11/2020

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PERUL, Johan, RENAUDIN, Valérie, 2020, HEAD: smootH Estimation of wAlking Direction with a hand-held device embedding inertial, GNSS and magnetometer sensors, Navigation, Journal of the Institute of Navigation, WILEY, 17p, DOI: 10.1002/navi.389

https://onlinelibrary.wiley.com/doi/pdf/10.1002/navi.389

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PONTE MULLER, Fabian, MUNOZ DIAZ, Estefania, PERUL, Johan, RENAUDIN, Valérie, 2020, Urban vulnerable road user localization using gnss, inertial sensors and ultra-wideband ranging, IEEE-IV'2020, IEEE Intelligent Vehicles Symposium, LAS VEGAS, ETATS-UNIS, 2020-10-20, Institute of Electrical and Electronics Engineers - IEEE, 7p

https://elib.dlr.de/134960/

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ZHU, Ni, BETAILLE, David, MARAIS, Juliette, BERBINEAU, Marion, 2020, GNSS Integrity Monitoring Schemes for Terrestrial Applications in Harsh Signal Environments, IEEE Intelligent Transportation Systems Magazine , Institute of Electrical and Electronics Engineers - IEEE, 11p, DOI: 10.1109/MITS.2020.2994076

https://ieeexplore.ieee.org/document/9113715

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KONE, Yacouba, ZHU, Ni, RENAUDIN, Valérie, ORTIZ, Miguel, 2020, Machine Learning-Based Zero-Velocity Detection for Inertial Pedestrian Navigation, IEEE Sensors Journal, Institute of Electrical and Electronics Engineers - IEEE, 11p, DOI: 10.1109/JSEN.2020.2999863

https://ieeexplore.ieee.org/document/9107252

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RUOTSALAINEN, Laura, RENAUDIN, Valérie, PEI, Ling, PIRAS, Marco, MARAIS, Juliette, CAVALHERI, Emerson, KAASALAINEN, Sanna, 2020, Toward Autonomous Driving in Arctic Areas, IEEE Intelligent Transportation Systems Magazine, IEEE, 15 p., DOI: 10.1109/MITS.2020.2994014

https://ieeexplore.ieee.org/document/9115644
https://hal.archives-ouvertes.fr/hal-02877232

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RAGOIN, Céline, RENAUDIN, Valérie, ORTIZ, Miguel, 2020, Precise positioning on smartphones: which implementation strategy to adopt?, GNSS'20, 4th Global Navigation Satellite Systems Raw Measurements Taskforce Workshop, PRAGUE, TCHÈQUE, RÉPUBLIQUE, 2020-05-27, 12p.

https://www.gsa.europa.eu/sites/default/files/expo/3.5_celine_ragoin_miguel_ortiz_-_uni_gustave_eiffel.pdf

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DULERY, Christelle, ORTIZ, Miguel, LEBLAN, Xavier, 2020, EN 16803/ Référentiel Européen de géolocalisation pour certifier les solutions de Mobilité, RDMI'20, 47ème Congrès ATEC ITS France, les Rencontres De la Mobilité Intelligente, Montrouge, FRANCE, 2020-01-22, 9p

https://guide-gnss.com/wp-content/uploads/2020/01/ATEC-ITS-Metrologie-GNSS-Referentiel-Europeen-de-geolocalisation-pour-certifier-les-solutions-de-Mobilite.pdf

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HAL : Dernières publications

  • [hal-02359076] Power Edge Set and Zero Forcing Set Remain Difficult in Cubic Graphs

    This paper presents new complexity and non-approximation results concerning two color propagation problems, namely Power Edge Set and Zero Forcing Set. We focus on cubic graphs, exploiting their structural properties to improve and refine previous results. We also give hardness results for parameterized precolored versions of these problems, and a polynomial-time algorithm for Zero Forcing Set in proper interval graphs.

  • [hal-01397336] Morphological PDEs on Graphs for Image Processing on Surfaces and Point Clouds

    Partial Differential Equations (PDEs)-based morphology offers a wide range of continuous operators to address various image processing problems. Most of these operators are formulated as Hamilton-Jacobi equations or curve evolution level set and morphological flows. In our previous works, we have proposed a simple method to solve PDEs on point clouds using the framework of PdEs (Partial difference Equations) on graphs. In this paper, we propose to apply a large class of morphological-based operators on graphs for processing raw 3D point clouds and extend their applications for the processing of colored point clouds of geo-informatics 3D data. Through illustrations, we show that this simple framework can be used in the resolution of many applications for geo-informatics purposes.

  • [hal-02344362] Surface Reconstruction from 3D Line Segments

    In man-made environments such as indoor scenes, when point-based 3D reconstruction fails due to the lack of texture, lines can still be detected and used to support surfaces. We present a novel method for watertight piecewise-planar surface reconstruction from 3D line segments with visibility information. First, planes are extracted by a novel RANSAC approach for line segments that allows multiple shape support. Then, each 3D cell of a plane arrangement is labeled full or empty based on line attachment to planes, visibility and regularization. Experiments show the robustness to sparse input data, noise and outliers.

  • [hal-04512404] Ultra-Lightweight and Secure Intrusion Detection System for Massive-IoT Networks

    The Internet of Things (IoT) is starting to integrate deeply into our daily lives thanks to the different services it provides. This technology has already made us more closely linked to the external environment through ubiquitous communication devices. However, even though this proximity has numerous benefits, it also has a significant security impact, where the cyber-attack surface has grown dramatically. In this regard, we present, in this paper, our results toward the development of a decision tree-based machine learning model for intrusion detection in Massive-IoT networks. The principal objective of this work is to provide a highly accurate detection model, while preserving resource consumption by developing a real prototype of the intrusion detection system. To this end, we first propose and apply our pre-processing methodology on the well-known Avast IoT-23 dataset, allowing us to reach a high detection rate with 99.99% of accuracy and just 1804KB of the model’s size. Then, we propose a new machine learning model based on the decision tree classifier and deploy it in a real environment with malicious attack traffic. Obtained results show that our proposed model allows 88% of real-traffic-based precision rate and up to 90% of specificity.

  • [hal-04425181] Parabolic Tamari Lattices in Linear Type B

    We study parabolic aligned elements associated with the type-$B$ Coxeter group and the so-called linear Coxeter element. These elements were introduced algebraically in (Mühle and Williams, 2019) for parabolic quotients of finite Coxeter groups and were characterized by a certain forcing condition on inversions. We focus on the type-$B$ case and give a combinatorial model for these elements in terms of pattern avoidance. Moreover, we describe an equivalence relation on parabolic quotients of the type-$B$ Coxeter group whose equivalence classes are indexed by the aligned elements. We prove that this equivalence relation extends to a congruence relation for the weak order. The resulting quotient lattice is the type-$B$ analogue of the parabolic Tamari lattice introduced for type $A$ in (Mühle and Williams, 2019).

  • [hal-04545553] Open comments on the "Open Letter: Establishing a national research software award

    The goal of this document is to openly contribute with our comments to the Open Letter "Establishing a national research software award" published in the Open Research Europe(ORE), see https://open-research-europe.ec.europa.eu/articles/3-185/v1. We hope that they can contribute to enrich the discussion on the involved subjects. Moreover, we think that these suggestions could be also useful for the authors to react to the Referees’ comments when they discuss and ask for more precision regarding both the concept of research software presented in the Open Letter, and the proposed evaluation criteria and steps. These comments are now available at the ORE platform, see https://open-research-europe.ec.europa.eu/articles/3-185/v1?commentId=3859

  • [hal-04545552] Sur la production de logiciels libres au Laboratoire d'Informatique Gaspard-Monge (LIGM) : ce que nous avons appris

    Description détaillée de l’intervention de T. Gomez-Diaz le 9 avril lors de l’atelier BlueHats. Nous présenterons l’expérience de productions des logiciels de la recherche au Laboratoire d’informatique Gaspard-Monge, dont plus de 80% sont diffusés sous licence libre [1]. Depuis 2006 le laboratoire mène une politique qui favorise la visibilité de cette production, avec l’amélioration des pratiques de diffusion et la réalisation et maintenance d’un catalogue. Le concept de “logiciel d’un laboratoire” [1,2,5], que nous avons proposé initialement en 2006 a évolué vers le concept de logiciel de la recherche, comme la traduction du terme anglais research software, mais aussi pour mieux faire le parallèle avec les évolutions récentes du paysage scientifique liées aux données de la recherche. Il s’agît d’un concept central pour les infrastructures et les services [3,4] qui sont actuellement en construction dans le cadre des évolutions de la Science Ouverte [3], dont l’objectif est de rendre les productions scientifiques visibles, accessibles et réutilisables. Il est également un concept central dans la proposition des protocoles d’évaluation de cette production scientifique [5]. [1] T. Gomez-Diaz (2013) Patrimoine logiciel des laboratoires https://hal.archives-ouvertes.fr/cel-01804283 [2] T. Gomez-Diaz (2015) Article vs. Logiciel : questions juridiques et de politique scientifique dans la production de logiciels http://www.societe-informatique-de-france.fr/wp-content/uploads/2015/04/1024-5-gomez-diaz.pdf [3] T. Gomez-Diaz, T. Recio (2020) Towards an Open Science definition as a political and legal framework: on the sharing and dissemination of research outputs POLIS N. 19, 2020, http://uet.edu.al/polis/images/1.pdf V3 du 28/02/2021 : https://zenodo.org/record/4577066 [4] T. Gomez-Diaz, T. Recio (2020) Open comments on the Task Force SIRS report: Scholarly Infrastructures for Research Software, Research Ideas and Outcomes (RIO) 7: e63872, https://doi.org/10.3897/rio.7.e63872 [5] T. Gomez-Diaz, T. Recio (2019) On the evaluation of research software: the CDUR procedure https://doi.org/10.12688/f1000research.19994.2

  • [hal-04225005] Extraction et caractérisation de noyaux d’événements liés à la pollution industrielle

    Nous cherchons à caractériser des événements liés à la pollution industrielle, extraits de textes administratifs. Chaque événement peut être caractérisé par un déclencheur qui rend compte de sa nature (administrative, de dépollution, etc.). Nous proposons une typologie pour catégoriser ces déclencheurs et une méthode hybride pour réaliser automatiquement cette catégorisation. Cette méthode combine une approche d'apprentissage automatique (fondée sur des plongements de mots et un apprentissage supervisé) avec une approche textométrique (fondée sur la visualisation de la cooccurrence des mots fréquents). Elle permet de caractériser les déclencheurs d’événements automatiquement avec une f-mesure de 80%.

  • [hal-04486680] Unbalanced L1 optimal transport for vector valued measures and application to Full Waveform Inversion

    Optimal transport has recently started to be successfully employed to define misfit or loss functions in inverse problems. However, it is a problem intrinsically defined for positive (probability) measures and therefore strategies are needed for its applications in more general settings of interest. In this paper we introduce an unbalanced optimal transport problem for vector valued measures starting from the $L^1$ optimal transport. By lifting data in a self-dual cone of a higher dimensional vector space, we show that one can recover a meaningful transport problem. We show that the favorable computational complexity of the $L^1$ problem, an advantage compared to other formulations of optimal transport, is inherited by our vector extension. We consider both a one-homogeneous and a two-homogeneous penalization for the imbalance of mass, the latter being potentially relevant for applications to physics based problems. In particular, we demonstrate the potential of our strategy for full waveform inversion, an inverse problem for high resolution seismic imaging.

  • [hal-04512759] Long run convergence of discrete-time interacting particle systems of the McKean-Vlasov type

    We consider a discrete-time system of n coupled random vectors, a.k.a. interacting particles. The dynamics involve a vanishing step size, some random centered perturbations, and a mean vector field which induces the coupling between the particles. We study the doubly asymptotic regime where both the number of iterations and the number n of particles tend to infinity, without any constraint on the relative rates of convergence of these two parameters. We establish that the empirical measure of the interpolated trajectories of the particles converges in probability, in an ergodic sense, to the set of recurrent Mc-Kean-Vlasov distributions. A first application example is the granular media equation, where the particles are shown to converge to a critical point of the Helmholtz energy. A second example is the convergence of stochastic gradient descent to the global minimizer of the risk, in a wide two-layer neural networks using random features.

  • [hal-04523393] Cartesian and Lyndon trees

    The article describes the structural and algorithmic relations between Cartesian trees and Lyndon Trees. This leads to a uniform presentation of the Lyndon table of a word corresponding to the Next Nearest Smaller table of a sequence of numbers. It shows how to efficiently compute runs, that is, maximal periodicities occurring in a word.

  • [tel-04521147] Improving 3D Reconstruction using Adaptative RanSaC and Benchmarking with Semi-Artificial Data Generation

    Research around Robust Estimator in the context of 3D Stereo Reconstruction is complicated by the difficulty to obtain reliable Ground Truth data. The literature around this subject proposes a number of RanSaC like algorithms that are compared to each other using either fully artificial data or estimated real data which leads to unreliable conclusions. Recent work focuses on methods that do not use user-defined thresholds which require strong hypothesis on the data distribution. To efficiently compare this new methods we propose a new benchmarking solution that will help leveraging recent work to improve the State of the Art. Our first contribution is a novel data generation method that relies on real data to obtain a realistic model and distribution of data points to create reliable benchmarks with precise metrics. We then used this method to compare most recent adaptative methods on a variety of Multi-View Stereo (MVS) and Structure-from-Motion(SfM) problems and obtain insight in the capabilities of each algorithm. Using these conclusions, we tried to improve ColMap using user-set-threshold-free methods. Finally, we provide the complete code base used to generate the benchmarks, with all tested methodsin a unified framework. This includes an implementation of an algorithm making use of Likelihood Ratio Tests which had not been made available by the original authors

  • [hal-04521121] What ChatGPT tells us about ourselves

    [...]

  • [hal-04520476] Parabolic Tamari Lattices in Linear Type B

    We study parabolic aligned elements associated with the type-$B$ Coxeter group and the so-called linear Coxeter element. These elements were introduced algebraically in (Mühle and Williams, 2019) for parabolic quotients of finite Coxeter groups and were characterized by a certain forcing condition on inversions. We focus on the type-$B$ case and give a combinatorial model for these elements in terms of pattern avoidance. Moreover, we describe an equivalence relation on parabolic quotients of the type-$B$ Coxeter group whose equivalence classes are indexed by the aligned elements. We prove that this equivalence relation extends to a congruence relation for the weak order. The resulting quotient lattice is the type-$B$ analogue of the parabolic Tamari lattice introduced for type $A$ in (Mühle and Williams, 2019).

  • [hal-04516962] Procédé de calcul d’un pire temps de transmission, programme d’ordinateur et système informatique associés

    [...]

  • [hal-04512405] DDoS Attacks Detection and Mitigation in 5G and Beyond Networks: A Deep Learning-based Approach

    [...]

  • [hal-04512402] Smart Grid Critical Traffic Routing and Link Scheduling in 5G IAB Networks

    [...]

  • [hal-04512401] SD-RAN based Approach for Smart Grid Critical Traffic Routing and Scheduling in 5G Mobile Networks

    [...]

  • [hal-04512397] Securing 5G Network Slices with Adaptive Machine Learning Models as-a-Service: A Novel Approach

    [...]

  • [hal-04512395] 5G network slices resource orchestration using Machine Learning techniques

    To efficiently serve heterogeneous demands in terms of data rate, reliability, latency and mobility, network operators must optimize the utilization of their infrastructure resources. In this context, we propose a framework to orchestrate resources for 5G networks by leveraging Machine Learning (ML) techniques. We start by classifying the demands for resources into groups in order to adequately serve them by dedicated logical virtual networks or Network Slices (NSs). To optimally implement these heterogeneous NSs that share the same infrastructure, we develop a new dynamic slicing approach of Physical Resource Blocks (PRBs). On first hand, we propose a predictive approach to achieve optimal slicing decisions of the PRBs from a limited resource pool. On second hand, we design an admission controller and a slice scheduler and formalize them as Knapsack problems. Finally, we design an adaptive resource manager by leveraging Deep Reinforcement Learning (DRL). Using our 5G experimental prototype based on OpenAirInterface (OAI), we generate a realistic dataset for evaluating ML based approaches as well as two baselines solutions (i.e. static slicing and uninformed random slicing-decisions). Simulation results show that using regression trees for both classification and prediction, coupled with the DRL-based adaptive resource manager, outperform alternative approaches in terms of prediction accuracy, resource smoothing, system utilization and network throughput.

  • [hal-04512393] Deep Q-Network and Traffic Prediction based Routing Optimization in Software Defined Networks

    Software Defined Networking (SDN) is gaining momentum not only in research but also in IT industry representing the drivers of 5G networks, due to its capabilities of increasing the flexibility of a network and address a variety of network challenges, by logically centralizing the intelligence in software-based controllers. Thanks to Machine Learning (ML) techniques, the network performances and utilization can be optimized and enhanced. Neural Networks (NN) and Reinforcement Learning (RL), in particular, have demonstrated great success in cooperating with complex problems arising in network operation and management. To this end, we exploit in this paper, an SDN-based rules placement approach that aims to dynamically predict the traffic congestion by using mainly NN and learn optimal paths and reroute traffic to improve network utilization by deploying a Deep Q-Network (DQN) agent. To this end, we first formulate the Quality-of-Service (QoS)-aware routing problem as a Linear Program (LP), whose objective is to minimize the end-to-end (E2E) delay and link utilization. Then, we propose a simple yet efficient heuristic algorithm to solve it. Numerical results through emulation using ONOS controller and Mininet demonstrate that the proposed approach can significantly improve network performances in terms of decreasing the link utilization, the packet loss and the E2E delay.

  • [hal-04512392] Ernie: Scalable Load-Balanced Multicast Source Routing for Cloud Data Centers

    Nowadays, most applications hosted on public cloud data centers (DCs) disseminate data from a single source to a group of receivers for service deployment, data replication, software upgrade, etc. For such one-to-many data communication paradigm, multicast routing is the natural choice as it reduces network traffic and improves application throughput. Unfortunately, recent approaches adopting IP multicast routing suffer from scalability and load balancing issues, and do not scale well with the number of supported multicast groups when used for cloud DC networks. Furthermore, IP multicast does not exploit the topological properties of DCs, such as the presence of multiple parallel paths between end hosts. Despite the recent efforts aimed at addressing these challenges, there is still a need for multicast routing protocol designs that are both scalable and load-balancing aware. This paper proposes $\mathsf {Ernie}$ , a scalable load-balanced multicast source routing for large-scale DCs. At its heart, $\mathsf {Ernie}$ further exploits DC network structural properties and switch programmability capabilities to encode and organize multicast group information inside packets in a way that minimizes downstream header sizes significantly, thereby reducing overall network traffic. Additionally, $\mathsf {Ernie}$ introduces an efficient load balancing strategy, where multicast traffic is adequately distributed at downstream layers. To study the effectiveness of $\mathsf {Ernie}$ , we extensively evaluate $\mathsf {Ernie}$ ’s scalability behavior (i.e., switch memory, packet size overheads, and CPU overheads), and load balancing ability through a mix of simulation and analysis of its performances. For example, experiments of large-scale DCs with 27k+ servers show that $\mathsf {Ernie}$ requires a downstream header sizes that are $10\times $ smaller than those needed under state-of-the-art schemes while keeping end-host overheads at low levels. Our simulation results also indicate that at highly congested links, $\mathsf {Ernie}$ can achieve a better multicast load balancing than other existing schemes.

  • [hal-04512391] Dynamic clustering of software defined network switches and controller placement using deep reinforcement learning

    [...]

  • [hal-04511063] User-Centric Slice Allocation Scheme in 5G Networks and Beyond

    Network slicing is a key enabler in the Next Generation 5G Radio Access Network (RAN) to build the RAN-as-a-Service concept. Cloud-RAN, Network Function Virtualization, Software Defined Network and RAN functional splits are the main pillars expected to be integrated to provide the required flexibility. One of the major concerns is to efficiently allocate RAN resources for slices, while supporting multiple use-cases with heterogeneous Quality-of-Service (QoS) requirements. Current related work is adopting radio resource allocation scheme by considering a cell-centric deployment approach for slice embedding. However, to achieve greater flexibility and fine-grained tunable resource utilization, we believe that the deployment scheme should be integrated in the slice design. In this paper, we go a step further and propose a RAN slicing approach with customized deployment scheme on user basis. As the corresponding optimization problem is NP-Hard, we propose a low-cost and efficient heuristic algorithm for RAN Slice allocation based on the Particle Swarm Optimization approach. Our proposal jointly harnesses radio, processing and link resources at user level tailored to the QoS requirements, while customizing efficiently the underlying physical RAN resource usage.

  • [tel-04511333] Class-Incremental Learning in an Exemplar-Free setup

    This thesis explores the challenges and strategies associated with Class-Incremental Learning (CIL), a branch of machine learning that focuses on the efficient integration of new classes into existing models. The work addresses key difficulties, including catastrophic forgetting and the trade-off between stability and plasticity, especially in scenarios where past class data is not storable. A number of innovative methods are proposed, ranging from strategic management of the model parameter distribution to the creation of a pseudo-feature generator for improved stability-plasticity balance. The study also provides a thorough experimental analysis of various factors influencing CIL performance, such as initial training strategies, neural architecture selection, and CIL algorithm choice. The research culminates in the provision of practical guidelines for effective incremental learning to facilitate the real-world application of CIL. In summary, the thesis contributes significant insights and methods to the field of machine learning, fostering a better understanding and use of Class-Incremental Learning.

  • [hal-04510609] Almost tight lower bounds for hard cutting problems in embedded graphs

    We prove essentially tight lower bounds, conditionally to the Exponential Time Hypothesis, for two fundamental but seemingly very different cutting problems on surface-embedded graphs: the Shortest Cut Graph problem and the Multiway Cut problem. A cut graph of a graph G embedded on a surface S is a subgraph of G whose removal from S leaves a disk. We consider the problem of deciding whether an unweighted graph embedded on a surface of genus G has a cut graph of length at most a given value. We prove a time lower bound for this problem of nΩ(g log g) conditionally to the ETH. In other words, the first nO(g)-time algorithm by Erickson and Har-Peled [SoCG 2002, Discr. Comput. Geom. 2004] is essentially optimal. We also prove that the problem is W[1]-hard when parameterized by the genus, answering a 17-year-old question of these authors. A multiway cut of an undirected graph G with t distinguished vertices, called terminals, is a set of edges whose removal disconnects all pairs of terminals. We consider the problem of deciding whether an unweighted graph G has a multiway cut of weight at most a given value. We prove a time lower bound for this problem of nΩ(gt+ g2+tlog (g+t)), conditionally to the ETH, for any choice of the genus g ≥ 0 of the graph and the number of terminals t≥ 4. In other words, the algorithm by the second author [Algorithmica 2017] (for the more general multicut problem) is essentially optimal; this extends the lower bound by the third author [ICALP 2012] (for the planar case). Reductions to planar problems usually involve a gridlike structure. The main novel idea for our results is to understand what structures instead of grids are needed if we want to exploit optimally a certain value G of the genus.

  • [hal-04509749] Improving Plasticity in Online Continual Learning via Collaborative Learning

    Online Continual Learning (CL) solves the problem of learning the ever-emerging new classification tasks from a continuous data stream. Unlike its offline counterpart, in online CL, the training data can only be seen once. Most existing online CL research regards catastrophic forgetting (i.e., model stability) as almost the only challenge. In this paper, we argue that the model's capability to acquire new knowledge (i.e., model plasticity) is another challenge in online CL. While replay-based strategies have been shown to be effective in alleviating catastrophic forgetting, there is a notable gap in research attention toward improving model plasticity. To this end, we propose Collaborative Continual Learning (CCL), a collaborative learning based strategy to improve the model's capability in acquiring new concepts. Additionally, we introduce Distillation Chain (DC), a novel collaborative learning scheme to boost the training of the models. We adapted CCL-DC to existing representative online CL works. Extensive experiments demonstrate that even if the learners are well-trained with state-of-the-art online CL methods, our strategy can still improve model plasticity dramatically, and thereby improve the overall performance by a large margin.

  • [hal-04493018] Sécurité des communications 5G véhiculaires (5G-V2X) dans un contexte transfrontalier

    Les communications 5G véhiculaires (5G-V2X) continueront à jouer un rôle essentiel dans le développement de l’industrie automobile. En effet, grâce entre autres au concept de découpage du réseau 5G en plusieurs sous-réseaux, de nouveaux cas d’usage futuristes pourront être pris en charge sur un même réseau physique. Cependant, l’utilisation du découpage du réseau 5G-V2X entraîne de nouveaux défis en matière de cybersécurité que les standards actuels, que ce soit ceux du domaine automobile que ceux de la 5G, n’ont pas encore traités. Un élément de vulnérabilité particulier est celui des environnements transfrontaliers où il est nécessaire d’assurer une transition optimale pour les véhicules d’un opérateur à un autre. Cet article vise donc à examiner les problèmes de sécurité et de protection de la vie privée du réseau 5G-V2X tout en recensant les questions ouvertes et les opportunités en zones transfrontalières, en mettant l’accent sur la détection des attaques, leur atténuation et les solutions potentielles pour la protection de la vie privée.

  • [hal-04509361] Method and Assembly allowing end-user terminals to exchange over a wireless multi-hop communication proximity network with dynamic architecture

    The method concerns a method of communication between end-user terminals and user terminals that are static or have low relative mobility with respect to each other, wherein a control server: - selects the terminals that are static or have low relative mobility from among the assembly of terminals, the other terminals being referred to as end terminals; - determines a graph, the nodes of which are static or low relative mobility terminals, - determines, on this graph of nodes, a sub-graph of dominant nodes; - selects, in the sub-graph of dominant nodes, at least one gateway node capable of establishing a communication with the Cloud Computing type network over their second cellular communication link; - selects the nodes of the graph which do not belong to the nodes of the sub-graph, as nodes having only the access/relay function to the dynamic multi-hop proximity network for the end-user terminals; - transmits its hierarchy status over the second cellular communication link, only individually to each of the various static or low relative mobility terminals.

  • [hal-04323443] Finding automatic sequences with few correlations

    Although automatic sequences are very simple algorithmically, some of them have pseudo-random properties. In particular, some automatic sequences such as the Golay–Shapiro sequence are known to be 2-uncorrelated, meaning that they have the same correlations of order 2 as a uniform random sequence. However, the existence of ℓ -uncorrelated automatic sequences (for ℓ ⩾ 3) was left as an open question in a recent paper of Marcovici, Stoll and Tahay. We exhibit binary block-additive sequences that are 3-uncorrelated and, with the help of analytical results supplemented by an exhaustive search, we present a complete picture of the correlation properties of binary block-additive sequences of rank r ⩽ 5, and ternary sequences of rank r ⩽ 3.

  • [hal-04506311] Concrete printing defects dataset for quality process monitoring using computer vision

    The dataset contains images of concrete printing process monitoring camera. The dataset images are completed by the annotations dedicated to the detection of defects and anomalies that can be used in the close-loop control as feedback to an automated quality assessment system. It could stem from a rule-based expert system, vector-to-action dictionaries, supervised machine learning models, etc.

  • [tel-04503252] Developing and implementing watershed-based classification algorithms for imbalanced datasets : an application to the detection of acute chest syndrome in patients with sickle cell disease

    Sickle cell disease is a rare, chronic and potentially fatal inherited disorder affecting red blood cells. In particular, acute chest syndrome (ACS) is a feared complication due to its association with increased mortality in hospitalized patients. To reduce this mortality, biomarker variables are examined on a patient's arrival in the emergency department, followed by a statistical prediction if the syndrome will occur. When making these statistical predictions, the use of conventional statistical methods or machine learning algorithms often leads to problems such as over-fitting and high variability. This is due to the detection of acute chest syndrome (ACS) being a typical example of an imbalanced classification problem. Our main objective is to find syndrome cases which represent a subset within the set of patients unaffected by ACS.The concept of imbalanced datasets is key in this context. A binary dataset is considered imbalanced when there is a significant disparity between the occurrences of the minority class (in our case, the occurrence of ACS) and the majority class (patients unaffected by ACS). Traditional machine learning techniques are generally designed under the assumption of balanced datasets. Consequently, their application to imbalanced datasets often produces non-optimal performance and introduces biases. Due to these challenges, a high number of methods, called imbalanced methods, have been designed and implemented.Nonetheless, our investigation unveiled the absence of an established framework to systematically compare distinct imbalanced methods. Furthermore, we will demonstrate that despite the profusion of methodologies, none of them yields an enhancement in the acute chest syndrome (ACS) detection. In response, a structured pipeline has been formulated to systematically assess and compare diverse imbalanced methods. Simultaneously, recognizing the inherent limitations of existing methodologies, an innovative approach using mathematical morphology with watershed approaches was proposed. The idea of combining mathematical morphology and watersheds is based on the fact that the detection of small objects in an image has been explored more algorithmically than the detection of small classes in a digital dataset. This concept is also based on the progressive correlation established between watersheds applied to images and their application in classification. Consequently, we designed three distinct algorithms based on watershed graph theory and hierarchical principles. The first algorithm is rooted in the traditional oversampling approach, while the second algorithm adopts a method centered on learning based metric optimization. Finally, the third algorithm introduces an in-place algorithm built on watershed hierarchies, specifically designed to reduce dependence on the dataset's structure.The findings highlight the efficacy of watershed-based imbalanced classification algorithms in improving the detection of acute chest syndrome (ACS). These algorithms effectively address concerns related to overfitting and variability, translating to better reproducibility. For instance, the watershed-based oversampling technique, known as WSSMOTE, reduced overfitting from 13.3% to 1.2%. Moreover, the applicability of these algorithms can be extended to real-world classification problems. In certain cases, these algorithms led to improvements in performance metrics. For example, the accuracy of type of glasses predictions was notably enhanced through the application of the watershed optimization metric learning method. This underlines the practical benefits and adaptability of the proposed watershed-based algorithms

  • [hal-04502735] Enumerating grammar-based extractions

    We propose a new grammar-based language for defining information extractors from documents (text) that is built upon the well-studied framework of document spanners for extracting structured data from text. While previously studied formalisms for document spanners are mainly based on regular expressions, we use an extension of context-free grammars, called extraction grammars, to define the new class of context-free spanners. Extraction grammars are simply context-free grammars extended with variables that capture interval positions of the document, namely spans. While regular expressions are efficient for tokenizing and tagging, context-free grammars are also efficient for capturing structural properties. Indeed, we show that context-free spanners are strictly more expressive than their regular counterparts. We reason about the expressive power of our new class and present a pushdown-automata model that captures it. We show that extraction grammars can be evaluated with polynomial data complexity. Nevertheless, as the degree of the polynomial depends on the query, we present an enumeration algorithm for unambiguous extraction grammars that, after quintic preprocessing, outputs the results sequentially, without repetitions, with a constant delay between every two consecutive ones.

  • [hal-04502682] Finding Short Synchronizing Words for Prefix Codes

    We study the problems of finding a shortest synchronizing word and its length for a given prefix code. This is done in two different settings: when the code is defined by an arbitrary decoder recognizing its star and when the code is defined by its literal decoder (whose size is polynomially equivalent to the total length of all words in the code). For the first case for every epsilon > 0 we prove n^(1 - epsilon)-inapproximability for recognizable binary maximal prefix codes, Theta(log n)-inapproximability for finite binary maximal prefix codes and n^(1/2 - epsilon)-inapproximability for finite binary prefix codes. By c-inapproximability here we mean the non-existence of a c-approximation polynomial time algorithm under the assumption P != NP, and by n the number of states of the decoder in the input. For the second case, we propose approximation and exact algorithms and conjecture that for finite maximal prefix codes the problem can be solved in polynomial time. We also study the related problems of finding a shortest mortal and a shortest avoiding word.

  • [hal-04502632] Fixed interval scheduling with third‐party machines

    We study a problem of scheduling n jobs on machines of two types: in‐house machines and third‐party machines. Scheduling on in‐house machines incurs no additional costs, while using third‐party machines implies costs depending on their number and the time of usage. Each job has a fixed time interval for being processed which can be divided and allocated among several machines, as long as there is only one machine processing the job at any time. No machine can process more than one job at a time. Jobs can be rejected, and they are of different importance that is reflected in the weight of each job. The objective is to find a subset of the jobs and the number of third‐party machines for any period of time so that the accepted jobs can be feasibly scheduled, the total weight of the accepted jobs is maximized, and the total machine usage costs does not exceed a given upper bound. We also study a similar problem in which the objective is to maximize the total time at which at least one job is processed. Both problems are encountered in situations in which certain activities with given start and completion times have to be serviced by human operators. Examples are air traffic control and the monitoring safe vehicle unloading. Other examples are the employment of subcontractors in agriculture, construction or transportation. We will present NP‐hardness proofs, polynomial and pseudo‐polynomial optimal algorithms and an approximation algorithm for these problems and their special cases. These problems admit graph‐theoretical interpretations associated with finding independent sets and a proper vertex coloring in interval graphs.

  • [hal-04501852] Optimal approximations made easy

    [...]

  • [hal-04501837] Shellings and Sheddings Induced by Collapses

    We say that a pure simplicial complex K of dimension d satisfies the removal-collapsibility condition if K is either empty or K becomes collapsible after removing β~d(K;Z2) facets, where β~d(K;Z2) denotes the dth reduced Betti number. In this paper, we show that if the link of each face of a pure simplicial complex K (including the link of the empty face which is the whole K) satisfy the removal-collapsibility condition, then the second barycentric subdivision of K is vertex decomposable and in particular shellable. This is a higher dimensional generalization of a result of Hachimori, who proved that that if the link of each vertex of a pure 2-dimensional simplicial complex K is connected, and K becomes simplicially collapsible after removing χ~(K) facets, where χ~(K) denotes the reduced Euler characteristic, then the second barycentric subdivision of K is shellable. For the proof, we introduce a new variant of decomposability of a simplicial complex, stronger than vertex decomposability, which we call star decomposability. This notion may be of independent interest.

  • [hal-04500324] Systolic inequalities for the number of vertices

    Inspired by the classical Riemannian systolic inequality of Gromov, we present a combinatorial analogue providing a lower bound on the number of vertices of a simplicial complex in terms of its edge-path systole. Similarly to the Riemannian case, where the inequality holds under a topological assumption of “essentiality”, our proofs rely on a combinatorial analogue of that assumption. Under a stronger assumption, expressed in terms of cohomology cup-length, we improve our results quantitatively. We also illustrate our methods in the continuous setting, generalizing and improving quantitatively the Minkowski principle of Balacheff and Karam; a corollary of this result is the extension of the Guth–Nakamura cup-length systolic bound from manifolds to complexes.

  • [hal-04500071] Impact of base dataset design on few-shot image classification

    The quality and generality of deep image features is crucially determined by the data they have been trained on, but little is known about this often overlooked effect. In this paper, we systematically study the effect of variations in the training data by evaluating deep features trained on different image sets in a few-shot classification setting. The experimental protocol we define allows to explore key practical questions. What is the influence of the similarity between base and test classes? Given a fixed annotation budget, what is the optimal trade-off between the number of images per class and the number of classes? Given a fixed dataset, can features be improved by splitting or combining different classes? Should simple or diverse classes be annotated? In a wide range of experiments, we provide clear answers to these questions on the miniImageNet, ImageNet and CUB-200 benchmarks. We also show how the base dataset design can improve performance in few-shot classification more drastically than replacing a simple baseline by an advanced state of the art algorithm.

  • [hal-04498573] Unsupervised Image Decomposition in Vector Layers

    Deep image generation is becoming a tool to enhance artists and designers creativity potential. In this paper, we aim at making the generation process more structured and easier to interact with. Inspired by vector graphics systems, we propose a new deep image reconstruction paradigm where the outputs are composed from simple layers, defined by their color and a vector transparency mask. This presents a number of advantages compared to the commonly used convolutional network architectures. In particular, our layered decomposition allows simple user interaction, for example to update a given mask, or change the color of a selected layer. From a compact code, our architecture also generates vector images with a virtually infinite resolution, the color at each point in an image being a parametric function of its coordinates. We validate the efficiency of our approach by comparing reconstructions with state-of-the-art baselines given similar memory resources on CelebA and ImageNet datasets. Most importantly, we demonstrate several applications of our new image representation obtained in an unsupervised manner, including editing, vectorization and image search.

  • [hal-04498568] Re-ranking for image retrieval and transductive few-shot classification

    [...]

  • [hal-04498427] Learning Co-segmentation by Segment Swapping for Retrieval and Discovery

    The goal of this work is to efficiently identify visually similar patterns in images, e.g. identifying an artwork detail copied between an engraving and an oil painting, or recognizing parts of a night-time photograph visible in its daytime counterpart. Lack of training data is a key challenge for this co-segmentation task. We present a simple yet surprisingly effective approach to overcome this difficulty: we generate synthetic training pairs by selecting segments in an image and copy-pasting them into another image. We then learn to predict the repeated region masks. We find that it is crucial to predict the correspondences as an auxiliary task and to use Poisson blending and style transfer on the training pairs to generalize on real data. We analyse results with two deep architectures relevant to our joint image analysis task: a transformer-based architecture and Sparse Nc-Net, a recent network designed to predict coarse correspondences using 4D convolutions. We show our approach provides clear improvements for artwork details retrieval on the Brueghel dataset and achieves competitive performance on two place recognition benchmarks, Tokyo247 and Pitts30K. We also demonstrate the potential of our approach for unsupervised image collection analysis by introducing a spectral graph clustering approach to object discovery and demonstrating it on the object discovery dataset of \cite{rubinstein2013unsupervised} and the Brueghel dataset. Our code and data are available at http://imagine.enpc.fr/~shenx/SegSwap/.

  • [hal-04290576] On shuffled-square-free words

    A word u is a shuffle of words v and w, which we denote by u ∈ v⧢w, if u can be obtained by mixing the letters from v and w in a way that preserves the left-to-right ordering of the letters from v and w. In case u∈v⧢v for some word v, the word u is called a shuffled-square. A word u is shuffled-square-free if it does not have a non-empty factor (i.e., non-empty sequence of adjacent letters) that is a shuffled-square. Our contribution in this context is two-fold. First, we prove that there exist arbitrarily long shuffled-square-free words in any alphabet with six letters or more, thereby improving on a previous result of Guégan and Ochem. Furthermore, we show that recognizing shuffled-square-free words on arbitrary alphabets is NP-complete.

  • [hal-04293802] The Maximum Zero-Sum Partition Problem

    We study the <span class="u-small-caps">Maximum Zero-Sum Partition</span> problem (or <span class="u-small-caps">MZSP</span>), defined as follows: given a multiset S={a<small><sub>1</sub></small>, a<small><sub>2</sub></small>, ..., a<small><sub>n</sub></small>} of integers a<small><sub>i</sub></small>∈Z* such that Σ<sub>i=1..n</sub> a<small><sub>i</sub></small>=0, find a maximum cardinality partition {S<small><sub>1</sub></small>, S<small><sub>2</sub></small>, ... , S<small><sub>k</sub></small>} of S such that, for every 1≤ i ≤ k, Σ<sub>a<small><sub>j</sub></small> ∈ S<small><sub>i</sub></small></sub> a<small><sub>j</sub></small>=0. Solving <span class="u-small-caps">MZSP</span> is useful in genomics for computing evolutionary distances between pairs of species. Our contributions are a series of algorithmic results concerning <span class="u-small-caps">MZSP</span>, in terms of complexity, (in)approximability, with a particular focus on the fixed-parameter tractability of <span class="u-small-caps">MZSP</span> with respect to either (i) the size <i>k</i> of the solution, (ii) the number of negative (resp. positive) values in S and (iii) the largest integer in S.

  • [hal-04498180] On recognising words that are squares for the shuffle product

    The shuffle of two words <em>u</em> and <em>v</em> of <span class="math"><math><msup is="true"><mrow is="true"><mi is="true">A</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup></math></span> is the language <span class="math"><math><mi is="true">u</mi><mo is="true">⧢</mo><mi is="true">v</mi></math></span> consisting of all words <span class="math"><math><msub is="true"><mrow is="true"><mi is="true">u</mi></mrow><mrow is="true"><mn is="true">1</mn></mrow></msub><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mn is="true">1</mn></mrow></msub><msub is="true"><mrow is="true"><mi is="true">u</mi></mrow><mrow is="true"><mn is="true">2</mn></mrow></msub><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mn is="true">2</mn></mrow></msub><mo is="true">…</mo><msub is="true"><mrow is="true"><mi is="true">u</mi></mrow><mrow is="true"><mi is="true">k</mi></mrow></msub><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mi is="true">k</mi></mrow></msub></math></span>, where <span class="math"><math><mi is="true">k</mi><mo is="true">≥</mo><mn is="true">0</mn></math></span> and the <span class="math"><math><msub is="true"><mrow is="true"><mi is="true">u</mi></mrow><mrow is="true"><mi is="true">i</mi></mrow></msub></math></span> and <span class="math"><math><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mi is="true">i</mi></mrow></msub></math></span> are words of <span class="math"><math><msup is="true"><mrow is="true"><mi is="true">A</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup></math></span> such that <span class="math"><math><mi is="true">u</mi><mo linebreak="goodbreak" linebreakstyle="after" is="true">=</mo><msub is="true"><mrow is="true"><mi is="true">u</mi></mrow><mrow is="true"><mn is="true">1</mn></mrow></msub><msub is="true"><mrow is="true"><mi is="true">u</mi></mrow><mrow is="true"><mn is="true">2</mn></mrow></msub><mo is="true">…</mo><msub is="true"><mrow is="true"><mi is="true">u</mi></mrow><mrow is="true"><mi is="true">k</mi></mrow></msub></math></span> and <span class="math"><math><mi is="true">v</mi><mo linebreak="goodbreak" linebreakstyle="after" is="true">=</mo><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mn is="true">1</mn></mrow></msub><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mn is="true">2</mn></mrow></msub><mo is="true">…</mo><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mi is="true">k</mi></mrow></msub></math></span>. In other words, <span class="math"><math><mi is="true">u</mi><mo is="true">⧢</mo><mi is="true">v</mi></math></span> is the finite set of all words obtainable from merging the words <em>u</em> and <em>v</em> from left to right, but choosing the next symbol arbitrarily from <em>u</em> or <em>v</em>. A word <span class="math"><math><mi is="true">u</mi><mo is="true">∈</mo><msup is="true"><mrow is="true"><mi is="true">A</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup></math></span> is a <em>square for the shuffle product</em> if it is the shuffle of two identical words (<em>i.e.</em>, <span class="math"><math><mi is="true">u</mi><mo is="true">∈</mo><mi is="true">v</mi><mo is="true">⧢</mo><mi is="true">v</mi></math></span> for some <span class="math"><math><mi is="true">v</mi><mo is="true">∈</mo><msup is="true"><mrow is="true"><mi is="true">A</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup></math></span>).</p><p id="sp0160">Whereas it can be decided in polynomial-time whether or not <span class="math"><math><mi is="true">u</mi><mo is="true">∈</mo><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mn is="true">1</mn></mrow></msub><mo is="true">⧢</mo><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mn is="true">2</mn></mrow></msub></math></span> for given words <em>u</em>, <span class="math"><math><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mn is="true">1</mn></mrow></msub></math></span> and <span class="math"><math><msub is="true"><mrow is="true"><mi is="true">v</mi></mrow><mrow is="true"><mn is="true">2</mn></mrow></msub></math></span> (J.-C. Spehner, 1986), we show in this paper that it is <strong>NP</strong>-complete to determine whether or not a word <em>u</em> is a square for the shuffle product. The novelty in our approach lies in representing words as <em>linear graphs</em>, in which deciding whether or not a given word is a square for the shuffle product reduces to computing some <em>inclusion-free perfect matching</em>. Finally, we prove that it is <strong>NP</strong>-complete to determine whether or not an input word is in the shuffle of a word with its reverse.

  • [hal-02178969] Unsupervised cycle-consistent deformation for shape matching

    We propose a self-supervised approach to deep surface deformation. Given a pair of shapes, our algorithm directly predicts a parametric transformation from one shape to the other respecting correspondences. Our insight is to use cycle-consistency to define a notion of good correspondences in groups of objects and use it as a supervisory signal to train our network. Our method does not rely on a template, assume near isometric deformations or rely on point-correspondence supervision. We demonstrate the efficacy of our approach by using it to transfer segmentation across shapes. We show, on Shapenet, that our approach is competitive with comparable state-of-the-art methods when annotated training data is readily available, but outperforms them by a large margin in the few-shot segmentation scenario.

  • [hal-02108930] Monte-Carlo Tree Search for Efficient Visually Guided Rearrangement Planning

    We address the problem of visually guided rearrangement planning with many movable objects, i.e., finding a sequence of actions to move a set of objects from an initial arrangement to a desired one, while relying on visual inputs coming from an RGB camera. To do so, we introduce a complete pipeline relying on two key contributions. First, we introduce an efficient and scalable rearrangement planning method, based on a Monte-Carlo Tree Search exploration strategy. We demonstrate that because of its good trade-off between exploration and exploitation our method (i) scales well with the number of objects while (ii) finding solutions which require a smaller number of moves compared to the other state-of-the-art approaches. Note that on the contrary to many approaches, we do not require any buffer space to be available. Second, to precisely localize movable objects in the scene, we develop an integrated approach for robust multi-object workspace state estimation from a single uncalibrated RGB camera using a deep neural network trained only with synthetic data. We validate our multi-object visually guided manipulation pipeline with several experiments on a real UR-5 robotic arm by solving various rearrangement planning instances, requiring only 60 ms to compute the plan to rearrange 25 objects. In addition, we show that our system is insensitive to camera movements and can successfully recover from external perturbations. Supplementary video, source code and pre-trained models are available at https://ylabbe.github.io/rearrangement-planning/.

  • [hal-04497577] Minimizing acceleration on the group of diffeomorphisms and its relaxation

    We study a second-order variational problem on the group of diffeomorphisms of the interval [0, 1] endowed with a right-invariant Sobolev metric of order 2, which consists in the minimization of the acceleration. We compute the relaxation of the problem which involves the so-called Fisher–Rao functional, a convex functional on the space of measures. This relaxation enables the derivation of several optimality conditions and, in particular, a sufficient condition which guarantees that a given path of the initial problem is also a minimizer of the relaxed one. Based on these sufficient conditions, the main result is that, when the value of the (minimized) functional is small enough, the minimizers are classical, that is the defect measure vanishes.

  • [hal-04497563] Spatially adaptive metrics for diffeomorphic image matching in LDDMM

    [...]

  • [hal-04497562] A discretize–optimize approach for LDDMM registration

    [...]


Articles principaux

On the Performance of Sliding Window TD-LMMSE Channel Estimation for 5G Waveforms in High Mobility Scenario

SAIDEH, Michel ; BERBINEAU, Marion ; DAYOUB, Iyad   /   (2018)

IEEE Transactions on Vehicular Technology, 5p, doi: 10.1109/TVT.2018.2845551

https://dx.doi.org/10.1109/TVT.2018.2845551
https://ieeexplore.ieee.org/document/8375806/

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On Doubly selective Channel Estimation for FBMC-OQAM using the LMMSE Filter for Future Railway Communications

SAIDEH, Michel ; BERBINEAU, Marion ; DAYOUB, Iyad   /   (2018)

ITST 2018, 16th International Conference on Intelligent Transport Systems Telecommunications, PORTUGAL, 6p

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Cyber-Physical Security Risk Assessment for Train Control and Monitoring Systems

REKIK, mouna ; GRANSART, Christophe ; BERBINEAU, Marion   /   (2018)

SSV 2018, 1st International Workshop on System Security and Vulnerability, IEEE CNS Conference on Communications and Network Security, CHINE, 9p

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Cyber-physical Threats and Vulnerabilities Analysis for Train Control and Monitoring Systems

REKIK, Mouna ; GRANSART, Christophe ; BERBINEAU, Marion   /   (2018)

IEEE ISNCC 2018, International Symposium on Networks, Computers and Communications, ITALIE, 6p

https://ieeexplore.ieee.org/document/8531005

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A new clustering structure for VANET

RIVOIRARD, Lucas ; WAHL, Martine ; SONDI, Patrick ; BERBINEAU, Marion ; GRUYER, Dominique   /   (2018)

TRA 2018, 7th Transport Research Arena, AUTRICHE, 10p

https://zenodo.org/record/1485695#.XG7Ba7jZCbg
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A Cooperative Vehicle Ego-localization Application Using V2V Communications with CBL Clustering

RIVOIRARD, Lucas ; WAHL, Martine ; SONDI, Patrick ; GRUYER, Dominique ; BERBINEAU, Marion   /   (2018)

IEEE IV 2018, 29th IEEE Intelligent Vehicles Symposium, CHINE, pp.722-727

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Extended Kalman Filter (EKF) Innovation-based Integrity Monitoring Scheme with C/N0 Weighting

ZHU, Ni ; BETAILLE, David ; MARAIS, Juliette ; BERBINEAU, Marion   /   (2018)

IEEE RTSI 2018, 4th International Forum on Research and Technologies for Society and Industry, ITALIE, 6p

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Evaluating TCMS Train-to-Ground communication performances based on the LTE technology and discreet event simulations

BOUAZIZ, Maha ; YAN, Ying ; KASSAB, Mohamed ; SOLER, José ; BERBINEAU, Marion   /   (2018)

13th International Workshop on Communication Technologies for Vehicles: Nets4Cars - Nets4Trains - Nets4Aircraft - Nets4Spacecrafts, ESPAGNE, 12p

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Train-to-Ground communications of Train Control and Monitoring Systems: A simulation platform modelling approach

BOUAZIZ, Maha ; YAN, Ying ; KASSAB, Mohamed ; SOLER, José ; BERBINEAU, Marion   /   (2018)

TRA 2018, 7th Transport Research Arena, AUTRICHE, 10p

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Proposition d'une structuration dynamique d'un réseau de communication intervéhiculaire pour les ITS

RIVOIRARD, Lucas ; WAHL, Martine ; SONDI, Patrick ; BERBINEAU, Marion ; GRUYER, Dominique   /   (2018)

RDMI 2018, Les rencontres de la mobilité intelligente, ATEC ITS FRANCE, FRANCE, 11p

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Graph-based people segmentation using a genetically optimized combination of classifiers

MEURIE, Cyril ; LEZORAY, Olivier ; CONIGLIO, Christophe ; BERBINEAU, Marion   /   (2018)

Journal of Electronic Imaging, 27p

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GNSS Integrity Enhancement for Urban Transport Applications by Error Characterization and Fault Detection and Exclusion (FDE)

ZHU, Ni ; BETAILLE, David ; MARAIS, Juliette ; BERBINEAU, Marion   /   (2018)

Géolocalisation et Navigation dans l'Espace et le Temps, Journées Scientifiques 2018 de l'URSI, FRANCE, 11p

https://ursi-france.sciencesconf.org/187025/document

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Safety Appraisal of GNSS-Based Localization Systems Used in Train Spacing Control

BEUGIN, Julie ; LEGRAND, Cyril ; MARAIS, Juliette ; BERBINEAU, Marion ; EL KOURSI, El Miloudi   /   (2018)

IEEE Access, 6, 99, pp9898-9916, doi: 10.1109/ACCESS.2018.2807127

http://ieeexplore.ieee.org/document/8293773/
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GNSS Position Integrity in Urban Environments: A Review of Literature

ZHU, Ni ; MARAIS, Juliette ; BETAILLE, David ; BERBINEAU, Marion   /   (2018)

IEEE Transactions on Intelligent Transportation Systems, 19, 9, pp2762-2778, doi: 10.1109/TITS.2017.2766768

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Performance Evaluation of Multi-Carrier Modulation Techniques in High Speed Railway Environment with Impulsive Noise

SAIDEH, Michel ; ALSABA, Yamen ; DAYOUB, Iyad ; BERBINEAU, Marion   /   (2019)

5GWF 2019, IEEE 2nd 5G World Forum, ALLEMAGNE, pp243-248

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A Round Earth Loss Model and Small-Scale Channel Properties for Open-Sea Radio Propagation

YANG, Kun ; F. MOLISCH, Andreas ; EKMAN, Torbjörn ; ROSTE, Terje ; BERBINEAU, Marion   /   (2019)

IEEE Transactions on Vehicular Technology, 68, 9, pp 8449-8460, doi: 10.1109/TVT.2019.2929914

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Joint Interference Cancellation for Multi-Carrier Modulation-Based Non-Orthogonal Multiple Access

SAIDEH, Michel ; ALSABA, Yamen ; DAYOUB, Iyad ; BERBINEAU, Marion   /   (2019)

IEEE Communications Letters, 23, 11, pp2114-2117, doi: 10.1109/LCOMM.2019.2933817

http://dx.doi.org/10.1109/LCOMM.2019.2933817
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Efficient Equalization for FBMC-OQAM Under Doubly Selective Channel Estimation Errors

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