Philippe JEAN-PIERRE

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• Type de publi. : Communication dans un congrès
• Date de publi. : 01/01/2007
• Auteurs : Gilles MartelAmélie CabasseAmmar HideurJean-Bernard LecourtPhilippe RoussignolSébastien Berger
• Organismes : Complexe de recherche interprofessionnel en aérothermochimie Complexe de recherche interprofessionnel en aérothermochimie Complexe de recherche interprofessionnel en aérothermochimie Complexe de recherche interprofessionnel en aérothermochimie Laboratoire Pierre Aigrain Laboratoire Pierre Aigrain

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2007
• Auteurs : Sébastien CouvreurCatherine HurtaudPierre-Guy MarnetPhilippe FaverdinJean-Louis J.-L. Peyraud
• Organismes : Production du lait Ecole Supérieure des Agricultures Production du lait Production du lait Production du lait Production du lait
• Publié dans Journal of Dairy Science le 22/10/2020

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2007
• Auteurs : Antoine ScherrerNicolas LarrieuPhilippe OwezarskiPierre BorgnatPatrice Abry
• Organismes : Laboratoire de Physique de l'ENS Lyon Laboratoire d'analyse et d'architecture des systèmes Laboratoire d'analyse et d'architecture des systèmes Laboratoire de Physique de l'ENS Lyon Laboratoire de Physique de l'ENS Lyon
• Publié dans IEEE Transactions on Dependable and Secure Computing le 01/11/2020

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Résumé : The goals of the present contribution are twofold. First, we propose the use of a non-Gaussian long-range dependent process to model Internet traffic aggregated time series. We give the definitions and intuition behind the use of this model. We detail numerical procedures that can be used to synthesize artificial traffic exactly following the model prescription. We also propose original and practically effective procedures to estimate the corresponding parameters from empirical data. We show that this empirical model relevantly describes a large variety of Internet traffic, including both regular traffic obtained from public reference repositories and traffic containing legitimate (flash crowd) or illegitimate (DDoS attack) anomalies. We observe that the proposed model accurately fits the data for a wide range of aggregation levels. The model provides us with a meaningful multiresolution (i.e., aggregation level dependent) statistics to characterize the traffic: the evolution of the estimated parameters with respect to the aggregation level. It opens the track to the second goal of the paper: anomaly detection. We propose the use of a quadratic distance computed on these statistics to detect the occurrences of DDoS attack and study the statistical performance of these detection procedures. Traffic with anomalies was produced and collected by us so as to create a controlled and reproducible database, allowing for a relevant assessment of the statistical performance of the proposed (modeling and detection) procedures

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2007
• Auteurs : Horst Uwe KellerMichael KüppersSonia FornasierPedro J. GutierrezStubbe F. HviidLaurent JordaJörg KnollenbergStephen LowryMiriam RengelIvano BertiniGabriele CremoneseW. IpDetlef KoschnyRainer KrammEkkehard KührtLuisa M. LaraHolger SierksNicholas ThomasCesare BarbieriPhilippe LamyHans RickmanRafael RodrigoM. F. A'HearnFrancesco AngrilliMaria Antonietta BarucciJean-Loup BertauxVania da DeppoBjörn DavidssonM. de CeccoStefano DebeiMarco FulleFritz GliemOlivier GroussinJosé J. López-MorenoFrancesco MarzariGiampiero NalettoLola SabauAngel Sanz AndrésKlaus-Peter Wenzel
• Organismes : Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research Laboratoire d'études spatiales et d'instrumentation en astrophysique Pôle Planétologie du LESIA Centro di Ateneo di Studi e Attività Spaziali “Giuseppe Colombo” Instituto de Astrofísica de Andalucía = Institute of Astrophysics of Andalusia Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research Laboratoire d'Astrophysique de Marseille DLR Institut für Planetenforschung Astrophysics Research Centre [Belfast] Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research Centro di Ateneo di Studi e Attività Spaziali “Giuseppe Colombo” INAF - Osservatorio Astronomico di Padova Institute of Space Science [Taiwan] European Space Research and Technology Centre Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research DLR Institut für Planetenforschung Instituto de Astrofísica de Andalucía = Institute of Astrophysics of Andalusia Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research Physikalisches Institut [Bern] Centro di Ateneo di Studi e Attività Spaziali “Giuseppe Colombo” Laboratoire d'Astrophysique de Marseille Department of Astronomy and Space Physics [Uppsala] Instituto de Astrofísica de Andalucía = Institute of Astrophysics of Andalusia Department of Astronomy [College Park] Università degli Studi di Padova = University of Padua Dipartimento di Ingegneria Meccanica [Padova] Laboratoire d'études spatiales et d'instrumentation en astrophysique Pôle Planétologie du LESIA Service d'aéronomie Department of Information Engineering [Padova] Department of Astronomy and Space Physics [Uppsala] Università degli Studi di Trento = University of Trento Università degli Studi di Trento = University of Trento INAF - Osservatorio Astronomico di Trieste Institut für Datentechnik und Kommunikationsnetze Department of Astronomy [College Park] Instituto de Astrofísica de Andalucía = Institute of Astrophysics of Andalusia Dipartimento di Fisica e Astronomia "Galileo Galilei" Department of Information Engineering [Padova] Instituto Nacional de Técnica Aeroespacial Instituto de Microgravedad "Ignacio Da Riva" European Space Research and Technology Centre
• Publié dans Icarus le 30/10/2020

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Résumé : The OSIRIS cameras on the Rosetta spacecraft observed Comet 9P/Tempel 1 from 5 days before to 10 days after it was hit by the Deep Impact projectile. The Narrow Angle Camera (NAC) monitored the cometary dust in 5 different filters. The Wide Angle Camera (WAC) observed through filters sensitive to emissions from OH, CN, Na, and OI together with the associated continuum. Before and after the impact the comet showed regular variations in intensity. The period of the brightness changes is consistent with the rotation period of Tempel 1. The overall brightness of Tempel 1 decreased by about 10% during the OSIRIS observations. The analysis of the impact ejecta shows that no new permanent coma structures were created by the impact. Most of the material moved with ˜200ms. Much of it left the comet in the form of icy grains which sublimated and fragmented within the first hour after the impact. The light curve of the comet after the impact and the amount of material leaving the comet (4.5 9×10kg of water ice and a presumably larger amount of dust) suggest that the impact ejecta were quickly accelerated by collisions with gas molecules. Therefore, the motion of the bulk of the ejecta cannot be described by ballistic trajectories, and the validity of determinations of the density and tensile strength of the nucleus of Tempel 1 with models using ballistic ejection of particles is uncertain.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2007
• Auteurs : François d'HautevilleMarianela FornerinoJean-Philippe Perrouty
• Organismes : Marchés, Organisations, Institutions et Stratégies d'Acteurs Centre d'études et de recherches appliquées à la gestion Wine Intelligence
• Publié dans International Journal of Wine Business Research le 29/10/2020

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Résumé : From the consumer's point of view, the hedonic evaluation of a product under full information (intrinsic and extrinsic) is considered as a measure of perceived quality. Generally, the perception of the quality of a product differs according to tasting conditions (blind, or full information). Based on previous literature on food marketing it is assumed that the change of preference between blind and full conditions reflects the influence of extrinsic information (here, the region of origin). Two types of results can be expected from disconfirmation: “assimilation” occurs when the final evaluation of the product changes in the direction of the expectation provided by the extrinsic cue, whereas “contrast” occurs when this change is contrary to the expectation. Five wines selected among regions with different reputation levels, and two groups of consumers, characterized by their level of expertise (trained/untrained students) are used in the experiment.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2007
• Auteurs : A. EzzhaouaniC. ValancognePhilippe PieriT. AmalakJean-Pierre J.-P. Gaudillere
• Organismes : Institut Agronomique et Vétérinaire Hassan II Ecophysiologie et Génomique Fonctionnelle de la Vigne Ecophysiologie et Génomique Fonctionnelle de la Vigne Institut Agronomique et Vétérinaire Hassan II Ecophysiologie et Génomique Fonctionnelle de la Vigne
• Publié dans Journal International des Sciences de la Vigne et du Vin le 28/10/2020

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Résumé : Aims: A study was conducted to compare traditional vineyard irrigation (TI) using one drip emitter per vine, and partial root zone drying irrigation (PRD) using two drip emitters per vine (one per each vine side), at 2 rates of water application (controlled deficit (TI4 and PRD4) and non limiting (TI8 and PRD8)). Methods and results: Individual vine transpiration and vine water status were estimated from sap flow measurements by a stem heat balance method and midday stem water potential. The quality of the harvest was not significantly changed by the treatments. However, the vegetative growth was lower for the low irrigation rate treatments (TI4 and PRD4) and the PRD8 (compared to TI8). The total amount of water transpired by the vines during the season was estimated to 147 l/m2 without water limitation. A limiting water supply (TI4) lessened vine water use and improved the fraction of supplied water trapped by the vines (81 % for TI4 and 66 % for TI8). PRD decreased the transpiration of the vines, but also the efficiency of use of irrigation water. Significance and impact of study: Limited water supply saved water and improved the water capture efficiency by the roots of the vines. PRD irrigation saved water but the vine water capture efficiency was lower, limiting the practical interest of the method.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2007
• Auteurs : Hélène GilbertJean Pierre BidanelJoseph GruandJean-Claude CaritezYvon BillonPhilippe P. GuillouetHervé LagantJean NobletPierre P. Sellier
• Organismes : Station de Génétique Quantitative et Appliquée Station de Génétique Quantitative et Appliquée Génétique Expérimentale en Productions Animales Génétique Expérimentale en Productions Animales Génétique Expérimentale en Productions Animales Insémination Caprine et Porcine Station de Génétique Quantitative et Appliquée Systèmes d'Elevage, Nutrition Animale et Humaine Station de Génétique Quantitative et Appliquée
• Publié dans Journal of Animal Science le 02/11/2020

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2007
• Auteurs : Éric DuchaudMekki BoussahaValentin LouxJean-François BernardetChristian MichelBrigitte KerouaultStanislas MondotPierre P. NicolasRobert BossyChristophe C. CaronPhilippe BessièresJean-François GibratStéphane ClaverolFabien DumetzMichel Le HénafAbdenour A. Benmansour
• Organismes : Unité de recherche Virologie et Immunologie Moléculaires Unité de recherche Virologie et Immunologie Moléculaires Unité Mathématique Informatique et Génome Unité de recherche Virologie et Immunologie Moléculaires Unité de recherche Virologie et Immunologie Moléculaires Unité de recherche Virologie et Immunologie Moléculaires Unité de recherche Virologie et Immunologie Moléculaires Unité Mathématique Informatique et Génome Unité Mathématique Informatique et Génome Unité Mathématique Informatique et Génome Unité Mathématique Informatique et Génome Unité Mathématique Informatique et Génome Plateforme génomique fonctionnelle École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux Unité de recherche Virologie et Immunologie Moléculaires
• Publié dans Nature Biotechnology le 29/10/2020

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Résumé : We report here the complete genome sequence of the virulent strain JIP02/86 (ATCC 49511) of Flavobacterium psychrophilum, a widely distributed pathogen of wild and cultured salmonid fish. The genome consists of a 2,861,988–base pair (bp) circular chromosome with 2,432 predicted protein-coding genes. Among these predicted proteins, stress response mediators, gliding motility proteins, adhesins and many putative secreted proteases are probably involved in colonization, invasion and destruction of the host tissues. The genome sequence provides the basis for explaining the relationships of the pathogen to the host and opens new perspectives for the development of more efficient disease control strategies. It also allows for a better understanding of the physiology and evolution of a significant representative of the family Flavobacteriaceae, whose members are associated with an interesting diversity of lifestyles and habitats

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• Type de publi. : Rapport
• Date de publi. : 01/01/2007
• Auteurs : Anne-Charlotte DockèsChristèle CouzyDominique BousquetDaniel DaridanSylvain GallotPascale MagdelaineEtienne PilorgéBenjamine VandeputteFrançois RaymondMyriam Aït AïssaAlain MouchartJean-Marie VinatierPhilippe AugeardEric BirlouezPhilippe DourlensOlivier TurquinStéphane IngrandPierre Chapuy
• Organismes : SIM SIM Institut de l'élevage Institut du Porc Institut Technique de l'AVIculture Institut Technique de l'AVIculture Terres Inovia Terres Inovia ARVALIS - Institut du végétal [Paris] Les instituts techniques agricoles Les instituts techniques agricoles Chambre Régionale d'Agriculture de Rhône-Alpes Chambre Régionale d'Agriculture de Rhône-Alpes Epistème Agri-Action Vivéa Mutations des activités des espaces et des formes d'organisation dans les territoires ruraux Science et Technologie du Lait et de l'Oeuf
• Publié dans Collection Résultats Institut de l'Elevage le 22/10/2020

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Résumé : absent

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Fichiers liés : 27491_20110412020450939_1.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2007
• Auteurs : Philippe DrobinskiF. SaïdGérard AncelletJoaquim ArtetaPatrick AugustinSophie BastinAurore BrutJean-Luc CacciaBernard CampistronSylvie CautenetAugustin ColettePatrice CollUlrich CorsmeierB. CrosAlain DabasHervé DelbarreAnne DufourPierre DurandV. GuénardM. HaselNorbert KalthoffChristoph KottmeierF. LasryAude LemonsuFabienne LohouValéry MassonLaurent MenutClotilde MoppertVincent-Henri PeuchVincent PuygrenierO. ReitbuchRobert Vautard
• Organismes : Service d'aéronomie Laboratoire d'aérologie Service d'aéronomie Laboratoire de météorologie physique Laboratoire de Physico-Chimie de l'Atmosphère Service d'aéronomie Laboratoire d'aérologie Laboratoire de sondages électromagnétiques de l'environnement terrestre Laboratoire d'aérologie Laboratoire de météorologie physique Service d'aéronomie Laboratoire Interuniversitaire des Systèmes Atmosphériques Institute for Meteorology and Climate Research Laboratoire d'aérologie Centre national de recherches météorologiques Laboratoire de Physico-Chimie de l'Atmosphère Centre national de recherches météorologiques Laboratoire d'aérologie Laboratoire de sondages électromagnétiques de l'environnement terrestre Institute for Meteorology and Climate Research Institute for Meteorology and Climate Research Institute for Meteorology and Climate Research Laboratoire Interuniversitaire des Systèmes Atmosphériques Centre national de recherches météorologiques Laboratoire d'aérologie Centre national de recherches météorologiques Laboratoire de Météorologie Dynamique (UMR 8539) Laboratoire d'aérologie Centre national de recherches météorologiques Laboratoire d'aérologie DLR Institut für Physik der Atmosphäre = DLR Institute of Atmospheric Physics Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] Extrèmes : Statistiques, Impacts et Régionalisation
• Publié dans Journal of Geophysical Research: Atmospheres le 24/10/2020

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Résumé : In the French Mediterranean basin the large city of Marseille and its industrialized suburbs (oil plants in the Fos-Berre area) are major pollutant sources that cause frequent and hazardous pollution episodes, especially in summer when intense solar heating enhances the photochemical activity and when the sea breeze circulation redistributes pollutants farther north in the countryside. This paper summarizes the findings of 5 years of research on the sea breeze in southern France and related mesoscale transport and dilution of pollutants within the Field Experiment to Constraint Models of Atmospheric Pollution and Emissions Transport (ESCOMPTE) program held in June and July 2001. This paper provides an overview of the experimental and numerical challenges identified before the ESCOMPTE field experiment and summarizes the key findings made in observation, simulation, and theory. We specifically address the role of large-scale atmospheric circulation to local ozone vertical distribution and the mesoscale processes driving horizontal advection of pollutants and vertical transport and mixing via entrainment at the top of the sea breeze or at the front and venting along the sloped terrain. The crucial importance of the interactions between processes of various spatial and temporal scales is thus highlighted. The advances in numerical modeling and forecasting of sea breeze events and ozone pollution episodes in southern France are also underlined. Finally, we conclude and point out some open research questions needing further investigation.

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Fichiers liés : Drobinski_et_al-2007-Journal_of_Geophysical_Research__Atmospheres_(1984-2012).pdf

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