Philippe JEAN-PIERRE

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• Type de publi. : Communication dans un congrès
• Date de publi. : 01/01/2010
• Auteurs : Norbert SchnellMarco Antonio Suarez-CifuentesJean-Philippe Lambert
• Organismes : Equipe Interactions musicales temps-réel Equipe Interactions musicales temps-réel Equipe Interactions musicales temps-réel

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Résumé : This paper describes a real-time audio analysis/resynthesis system that we developed for a music piece for ensemble and electronics. The system combines real-time audio analysis and concatenative synthesis based on the segmentation of sound streams into constituting segments and the description of segments by an efficient set of descriptors adapted to the given musical context. The system has been implemented in Max/MSP using the FTM & Co and MuBu libraries and successfully employed in the production and performance of the piece. As more and more research in the domain of music information retrieval, we use the term of typo-morhpology to designate the description of sounds by morphologic criteria including the temporal evolution of sound features that also can provide pertinent means for the classification of sounds. Although, the article mainly insists on the technical aspects of the work, it occasionally contextualizes the different technical choices regarding particular musical aspects.

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Fichiers liés : index.pdf

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• Type de publi. : Autre publication
• Date de publi. : 01/01/2010
• Auteurs : Pierre-Olivier MatteiBastien MallaroniPhilippe HerzogJean Kergomard
• Organismes : Laboratoire de Mécanique et d'Acoustique [Marseille] Laboratoire de Mécanique et d'Acoustique [Marseille] Laboratoire de Mécanique et d'Acoustique [Marseille] Laboratoire de Mécanique et d'Acoustique [Marseille]

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Résumé : L'étude des résonateurs est très répandue en acoustique, notamment dans le domaine musical. En effet, la géométrie interne (la perce) est la caractéristique essentielle de l'instrument quant à son comportement acoustique. La justesse de l'instrument va ainsi dépendre de la géométrie de son résonateur assimilé à une colonne d'air. Pour un instrument à vent, nous avons un couplage qui se produit avec le musicien à une extrémité du résonateur qui va constituer la partie excitatrice et un autre couplage à la fin du résonateur avec le milieu extérieur, c'est ce qui correspond au rayonnement. C'est principalement à ce dernier que nous nous sommes intéressé dans notre étude, notamment au lien qu'il peut exister entre le rayonnement d'un résonateur et sa géométrie. Dans cette étude, nous souhaitons dépasser le cadre strictement musical et nous intéresser à tous types de résonateurs afin de prendre en compte l'influence du rayonnement multimodal sur le champ de pression en tout point à l'intérieur d'un résonateur de géométrie plus complexe que le tuyau cylindrique (pavillons, ...). Le but de ce travail a été de développer un outil numérique nous permettant d'étudier le couplage entre deux milieux dans l'optique d'une optimisation géométrique du rayonnement. Afin d'étudier des géométries complexes, nous avons développé une méthode hybride en utilisant les avantages de la méthode modale (rapidité des calculs) et ceux de la méthode numérique (calcul du rayonnement de géométries complexes). L'idée est de décrire la partie passive à géométrie simple de notre système à l'aide de la méthode analytique et la partie à géométrie complexe et dissipative avec les éléments finis de frontière. Nous donnons quelques résultats sur l'étude du spectre complexe de quelques résonateurs de géométries plus complexes que le tuyau cylindrique. Des premiers résultats sur l'influence de la forme des pavillons sur le rayonnement sont présentés.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2010
• Auteurs : Vincent GembusSolenn JanvierJean-Pierre LecouvéPhilippe GloanecFrancis MarsaisVincent Levacher
• Organismes : Chimie Organique et Bioorganique : Réactivité et Analyse Oril Industrie Oril Industrie Institut de Recherches SERVIER Chimie Organique et Bioorganique : Réactivité et Analyse Chimie Organique et Bioorganique : Réactivité et Analyse
• Publié dans European Journal of Organic Chemistry le 22/10/2020

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• Type de publi. : Chapître d'ouvrage
• Date de publi. : 01/01/2010
• Auteurs : Jean-Philippe BabauPhilippe DhaussyPierre-Yves Pillain
• Organismes : Lab-STICC_UBO_CACS_MOCS Laboratoire d'Informatique des Systèmes Complexes Département STIC [Brest] Département STIC [Brest]

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Résumé : The paper proposes to integrate design and formal modelling approaches, based on MARTE, IF and CDL, to evaluate different possible uses and configurations of a data acquisition software component. The uses are related to actor's (sensor and application) behaviour and configurations are related to implementation parameterization. Evaluation considers safety and performance properties, delay evaluation, and are automatically evaluated by OBP tool. The work is illustrated via an example to show the impact of parameters and contextual use on software acquisition driver performances. Using this tool, it is possible to tune the driver's parameters to get the required performances, in term of delays, for a certain context use. The approach is applied to sensor monitoring applications.

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• Type de publi. : Communication dans un congrès
• Date de publi. : 01/01/2010
• Auteurs : Philippe MulhemJean-Pierre Chevallet
• Organismes : Modélisation et Recherche d’Information Multimédia [Grenoble] Laboratoire d'Informatique de Grenoble

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Résumé : no abstract

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2010
• Auteurs : Jean-Jacques HoarauMarie-Christine Jaffar-BandjeePascale Krejbich-TrototTrina DasGhislaine Li-Pat-YuenBérengère DassaMelanie DenizotElsa GuichardAnne RiberaTawfiq HenniFrank TalletMarie-Pierre MoitonBernard Alex GaüzèreSandrine BruniquetZaïnoul Jaffar-BandjeePhilippe MorbidelliGérard MartignyMichel JolivetFrédérick GayMarc GrandadamHugues TolouVincent VieillardPatrice DebreBrigitte AutranPhilippe Gasque
• Organismes : Groupe de Recherche en Immunopathologies et maladies infectueuses Service de bactériologie, parasitologie, virologie et hygiène hospitalière [La réunion] Groupe de Recherche en Immunopathologies et maladies infectueuses Service de bactériologie, parasitologie, virologie et hygiène hospitalière [La réunion] Laboratoire de Biochimie et Génétique Moléculaire Groupe de Recherche en Immunopathologies et maladies infectueuses Laboratoire de Biochimie et Génétique Moléculaire Groupe de Recherche en Immunopathologies et maladies infectueuses Laboratoire de Biochimie et Génétique Moléculaire Service de bactériologie, parasitologie, virologie et hygiène hospitalière [La réunion] Service de bactériologie, parasitologie, virologie et hygiène hospitalière [La réunion] Groupe de Recherche en Immunopathologies et maladies infectueuses Laboratoire de Biochimie et Génétique Moléculaire Service de bactériologie, parasitologie, virologie et hygiène hospitalière [La réunion] Service de bactériologie, parasitologie, virologie et hygiène hospitalière [La réunion] Centre Hospitalier Universitaire de La Réunion Groupe de Recherche en Immunopathologies et maladies infectueuses Service de bactériologie, parasitologie, virologie et hygiène hospitalière [La réunion] BIOMERIEUX [Lyon, France] Institut de Médecine Tropicale du Service de Santé des Armées Institut de Médecine Tropicale du Service de Santé des Armées Immunologie cellulaire et tissulaire Immunologie cellulaire et tissulaire Immunologie cellulaire et tissulaire Groupe de Recherche en Immunopathologies et maladies infectueuses Immunologie cellulaire et tissulaire Laboratoire de Biochimie et Génétique Moléculaire Service de bactériologie, parasitologie, virologie et hygiène hospitalière [La réunion]
• Publié dans Journal of Immunology le 27/10/2020

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Résumé : Alphaviruses, including Chikungunya virus (CHIKV), produce a transient illness in humans, but severe forms leading to chronic incapacitating arthralgia/arthritis have been reported by mechanisms largely ill-characterized. The pathogenesis of CHIKV was addressed in a prospective cohort study of 49 hospitalized patients from Reunion Island subsequently categorized into two distinct groups at 12 mo postinfection. Comprehensive analyses of the clinical and immunological parameters throughout the disease course were analyzed in either the “recovered” or the “chronic” groups to identify prognostic markers of arthritis-like pathology after CHIKV disease. We found that the chronic group consisted mainly of more elderly patients (\textgreater60 y) and with much higher viral loads (up to 1010 viruses per milliliter of blood) during the acute phase. Remarkably, a rapid innate immune antiviral response was demonstrated by robust dendritic/NK/CD4/CD8 cell activation and accompanied by a rather weak Th1/Th2 cytokine response in both groups. Interestingly, the antiviral immune response witnessed by high levels of IFN-α mRNA in PBMCs and circulating IL-12 persisted for months only in the chronic group. CHIKV (RNA and proteins) was found in perivascular synovial macrophages in one chronic patient 18 mo postinfection surrounded by infiltrating NK and T cells (CD4++ but rare cytotoxic CD8). Fibroblast hyperplasia, strong angiogenesis, tissue lesions given the high levels of matrix metalloproteinase 2, and acute cell death [high cleaved poly(ADP-ribose) polymerase staining] were observed in the injured synovial tissue. These observed cellular and molecular events may contribute to chronic arthralgia/arthritis targeted by methotrexate used empirically for effective treatment but with immunosuppressive function in a context of viral persistence.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2010
• Auteurs : Joaquin GengJean-Pierre BonnetStéven RenaultFranck DolhemPhilippe Poizot
• Organismes : Laboratoire de Réactivité et de Chimie des Solides - UMR CNRS 7314 UPJV Réseau sur le stockage électrochimique de l'énergie Laboratoire des Glucides Laboratoire de Réactivité et de Chimie des Solides - UMR CNRS 7314 UPJV Réseau sur le stockage électrochimique de l'énergie Laboratoire de Réactivité et de Chimie des Solides - UMR CNRS 7314 UPJV Réseau sur le stockage électrochimique de l'énergie Laboratoire des Glucides Réseau sur le stockage électrochimique de l'énergie Laboratoire des Glucides Laboratoire de Réactivité et de Chimie des Solides - UMR CNRS 7314 UPJV Réseau sur le stockage électrochimique de l'énergie
• Publié dans Energy & Environmental Science le 02/11/2020

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Résumé : Pursuing the electrochemical evaluation vs. Li of carbonyl-based cyclic structures deriving from the oxocarbon family, polyketones with N-cyclic structure are investigated to probe the potential modifications. In this communication, we specifically report on the electrochemical investigation of our first selected family of heterocycles based on the 2,3,5,6-tetraketopiperazine unit. Working in a systematic way, a series of tetraketopiperazine molecules with quite different R groups as substituents (i.e., phenyl, allyl and propyl functions) have been synthesized and characterized. Such small molecules were found to rapidly solubilise in commonly used electrolytes. To bypass this issue, we have prepared an oligomeric form via acyclic diene metathesis (ADMET). Preliminary results on the poly-N,N'-diallyl-2,3,5,6-tetraketopiperazine oligomer show a sustained reversible capacity of 110 mAh/g at near 2.45 V. The insight gained from this work is the fact that two intracyclic nitrogen atoms or a lithiated ene-diolate functionality in the C6-based polyketone cyclic structure induces a similar tuning of the redox potential.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2010
• Auteurs : Stéphanie PacePhilippe GonzalezJean-Marie DevoisselleP.E. MilhietDaniel BrunelFrédérique Cunin
• Organismes : Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier Centre de Biochimie Structurale [Montpellier] Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
• Publié dans New Journal of Chemistry le 01/11/2020

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2010
• Auteurs : Gaëlle ClainJean-Luc BarayRobert DelmasPhilippe KeckhutJ.-P. Cammas
• Organismes : Laboratoire de l'Atmosphère et des Cyclones Laboratoire de l'Atmosphère et des Cyclones Laboratoire de l'Atmosphère et des Cyclones STRATO - LATMOS Laboratoire d'aérologie
• Publié dans Atmospheric Environment le 23/10/2020

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Résumé : Sixteen years of ozone measurements (1992-2006) at Reunion Island (21°S, 55.5°E) have been processed to detect stratospheric signatures on each single ozone profile. The characterisation method consists in the advection of the potential vorticity (PV) over two to ten days of backtrajectory with the lagrangian trajectory code LACYTRAJ. LACYTRAJ is a Trajectory-Reverse Domain Filling code using the ERA40 ECMWF database and allowing the reconstruction of high resolution advected PV profiles. Correlation between high values of ozone mixing ratio and high PV is interpreted as a stratospheric signature. A climatology of STE events at Reunion has been derived and reveals that STE events occur more frequently during spring (SON) and summer (DJF). The method is tested for a set of PV threshold values (i.e. 1 PVU, 1.5 PVU and 2 PVU) and for a set of duration of backtrajectories (i.e. 2 days, 5 days and 10 days). The number of detected STE is sensitive to PV threshold values and duration criterions. For instance, the number of stratospheric intrusions detected in October with a 1.5 PVU criterion ranges between 25% (2 days of backtrajectories) and 56% (10 days of backtrajectories). The vertical distributions of STE show intrusions covering the whole free troposphere (between 7 and 15 km) and mainly located in the upper troposphere. Finally, results show that an important number of stratospheric intrusions are detected during spring and in the upper troposphere what points at the contribution of the stratospheric source to the tropospheric ozone spring maximum which is strongly influenced by the biomass burning emissions from South Africa and Madagascar.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2010
• Auteurs : Chuixiang YiDaniel RicciutoRunze LiJohn WolbeckXiyan ZuMats NilssonLuis AiresJohn D. AlbertsonChristof AmmannAltaf ArainAlessandro de AraujoMarc AubinetMika AurelaZoltan BarczaAlan BarrPaul BerbigierJason BeringerChristian BernhoferAndrew BlackPaul BolstadFred BosveldMark BroadmeadowNina BuchmannSean BurnsPierre CellierJingming ChenJiquan ChenPhilippe CiaisRobert ClementBruce CookPeter CurtisBryan DailEbba DellwikNicolas DelpierreAnkur DesaiSabina DoreDanilo DragoniBert DrakeEric DufrêneAllison DunnJan ElbersWerner EugsterMatthias FalkChristian FeigenwinterLawrence FlanaganThomas FokenJohn FrankJuerg FuhrerDamiano GianelleAllen GoldsteinMike GouldenAndré GranierThomas GrünwaldLianhong GuHaiqiang HuoAlbin HammerleShijie HanNiall HananLászló HaszpraBernard HeineschCarole HelfterDimmie HendriksLindsay HutleyAndreas IbromCor JacobsTorbjörn JohanssonMarjan JongenGabriel KatulGerard KielyKatja KlumppAlexander KnohlThomas KolbWerner KutschPeter LafleurTuomas LaurilaRay LeuningAnders LindrothHeping LiuBenjamin LoubetGiovanni MancaMichal MarekHank MargolisTimothy MartinWilliam MassmanRoser MatamalaGiorgio MatteucciHarry MccaugheyLutz MerboldTilden MeyersMirco MigliavaccaFranco MigliettaLaurent MissonMeelis MölderJohn MoncrieffRussell K. MonsonLeonardo MontagnaniMario Montes-HeluEddy MoorsChristine MoureauxMukufute M. MukelabaiJ. William MungerMay MyklebustZoltán NagyAsko NoormetsWalter OechelRam OrenStephen G. PallardyKiaw Tha Paw UJoão S PereiraKim PilegaardKrisztina PintérCasimiro PioGabriel PitaThomas L. PowellSerge RambalJames T. RandersonCelso von RandowCorinna RebmannJanne RinneFederica RossiNigel RouletRonald J. RyelJorgen SagerforsNobuko SaigusaMaria José SanzGiuseppe-Scarascia MugnozzaHans Peter SchmidGuenther SeufertMario SiqueiraJean-François SoussanaGregory StarrMark A. SuttonJohn TenhunenZoltan TubaJuha-Pekka TuovinenRiccardo ValentiniChristoph S. VogelJingxin WangShaoqiang WangWeiguo WangLisa R. WelpXuefa WenSonia WhartonMatthew WilkinsonChristopher A. WilliamsGeorg WohlfartSusumu YamamotoGuiri YuRoberto ZampedriBin ZhaoXinquan Zhao
• Organismes : School of Earth and Environmental Sciences, Queens College Environmental Sciences Division [Oak Ridge] Department of Statistics School of Earth and Environmental Sciences, Queens College School of Earth and Environmental Sciences, Queens College Department of Forest Ecology and Management Centro de Estudos do Ambiente e do Mar = Centre for Environmental and Marine Studies [Aveiro] Department of Civil and Environmental Engineering Agroscope School of Geography and Earth Sciences [Hamilton ON] Instituto Nacional de Pesquisas da Amazônia = National Institute of Amazonian Research Gembloux Agro-Bio Tech, Unit of Biosystem Physics Climate and Global Change Research [Helsinki] Department of Meteorology [Budapest] Environment and Climate Change Canada Écologie fonctionnelle et physique de l'environnement School of Geography and Environmental Science Institute of Hydrology and Meteorology [Dresden] Land and Food Systems University of Minnesota [Twin Cities] Royal Netherlands Meteorological Institute Forest Research Institute of Plant Science National Center for Atmospheric Research [Boulder] Environnement et Grandes Cultures Department of Geography Department of Environmental Sciences [Toledo USA] Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] ICOS-ATC School of Geosciences [Edinburgh] Biospheric Sciences Laboratory Department of Evolution, Ecology, and Organismal Biology Department of Plant, Soil, and Environmental Science Wind Energy Division [Roskilde] Commissariat à l'énergie atomique et aux énergies alternatives Department of Atmospheric and Oceanic Sciences [Madison] School of Forestry [Flagstaff] Atmospheric Science Program, Department of Geography Smithsonian Environmental Research Center Ecologie Systématique et Evolution Department of Physical and Earth Science Wageningen University and Research [Wageningen] Institute of Plant Science Department of Land, Air and Water Resources Institute for Meteorology, Climatology and Remote Sensing [Basel] Department of Biological Sciences Micrometeorology Group [Bayreuth] Rocky Mountain Research Station Agroscope Environment and Natural Resources Area Department of Environmental Science, Policy, and Management [Berkeley] Department of Earth System Science [Irvine] Ecologie et Ecophysiologie Forestières [devient SILVA en 2018] Institute of Hydrology and Meteorology [Dresden] Environmental Sciences Division [Oak Ridge] Key Laboratory for Biodiversity Science and Ecological Engineering [Shanghai] Institute of Ecology Institute of Applied Ecology Natural Resource Ecology Laboratory [Fort Collins] Hungarian Meteorological Service Gembloux Agro-Bio Tech, Unit of Biosystem Physics Centre for Ecology and Hydrology Department of Hydrology and Geo-Environmental Sciences [Amsterdam] School of Environmental and Life Sciences Biosystems Division [Roskilde] Earth System Science and Climate Change Group Geobiosphere Science Centre, Physical Geography and Ecosystems Analysis Instituto Superior de Agronomia [Lisboa] School of the Environment Civil and Environmental Engineering Department Unité de recherche sur l'Ecosystème Prairial Institute of Plant Science School of Forestry [Flagstaff] Institut für Agrarrelevante Klimaforschung Department of Geography Finnish Meteorological Institute CSIRO Marine and Atmospheric Research Geobiosphere Science Centre, Physical Geography and Ecosystems Analysis Department of Physics, Atmospheric Sciences and Geoscience [Jackson] Environnement et Grandes Cultures Institute of Atmospheric Pollution Research Division of Ecosystems Processes Lab. of Plants Ecological Physiology Centre d'études de la forêt Faculté de Foresterie et de Géomatique University of Florida [Gainesville] Rocky Mountain Research Station Biosciences Division National Research Council of Italy | Consiglio Nazionale delle Ricerche Department of Geography Max-Planck-Institut für Biochemie = Max Planck Institute of Biochemistry ARL Atmospheric Turbulence and Diffusion Division Remote Sensing of Environmental Dynamics Laboratory, DISAT Instituto di Biometeorologia Centre d’Ecologie Fonctionnelle et Evolutive Geobiosphere Science Centre, Physical Geography and Ecosystems Analysis School of Geosciences [Edinburgh] Department of Ecology and Evolutionary Biology Servizi Forestali, Agenzia per l'Ambiente Faculty of Sciences and Technologies School of Forestry [Flagstaff] Wageningen University and Research [Wageningen] Gembloux Agro-Bio Tech, Unit of Biosystem Physics Gembloux Agro-Bio Tech, Unit of Crops Management Zambia Meteorological Department Department of Earth and Planetary Sciences [Cambridge, USA] CSIRO Marine and Atmospheric Research Institute of Botany and Ecophysiology Department of Forestry and Environmental Resources Department of Biology [San Diego State Univ] Nicholas School of the Environment and Earth Sciences Department of Forestry Atmospheric Science Group, LAWR Instituto Superior de Agronomia [Lisboa] Biosystems Division [Roskilde] Institute of Botany and Ecophysiology Centro de Estudos do Ambiente e do Mar = Centre for Environmental and Marine Studies [Aveiro] Mechanical Engineering Department The Department of Organismic and Evolutionary Biology Centre d’Ecologie Fonctionnelle et Evolutive Department of Earth System Science [Irvine] Earth System Science Center Department of Geography Department of Physics Instituto di Biometeorologia Department of Geography [Montréal] Department of Wildland Resources Department of Forest Ecology and Management Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research Centro de Estudios Ambientales del Mediterraneo Department of Agronomy, Forestry and Land Use Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung JRC Institute for Environment and Sustainability Nicholas School of the Environment and Earth Sciences Collège de Direction Department of Biological Sciences Centre for Ecology & Hydrology - Bush Estate Department of Plant Ecology Institute of Botany and Ecophysiology Climate and Global Change Research [Helsinki] Department of Forest Environment and Resources Biological Station chine Institute of Geographic Sciences and Natural Resource Research IMSG@National Center for Environmental Predictions Geosciences Research Division, Scripps Institution of Oceanography Institute of Geographic Sciences and Natural Resource Research Atmospheric, Earth and Energy Division Forest Research Graduate Degree Program in Geography Institute of Ecology Okayama University Institute of Geographic Sciences and Natural Resource Research Environment and Natural Resources Area Key Laboratory for Biodiversity Science and Ecological Engineering [Shanghai] Northwest Plateau Institute of Biology
• Publié dans Environmental Research Letters le 28/10/2020

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Résumé : Understanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating effects of positive climate–carbon cycle feedbacks. However, directly observed relationships between climate and terrestrial CO2 exchange with the atmosphere across biomes and continents are lacking. Here we present data describing the relationships between net ecosystem exchange of carbon (NEE) and climate factors as measured using the eddy covariance method at 125 unique sites in various ecosystems over six continents with a total of 559 site-years. We find that NEE observed at eddy covariance sites is (1) a strong function of mean annual temperature at mid- and high-latitudes, (2) a strong function of dryness at mid- and low-latitudes, and (3) a function of both temperature and dryness around the mid-latitudinal belt (45°N). The sensitivity of NEE to mean annual temperature breaks down at ~ 16 °C (a threshold value of mean annual temperature), above which no further increase of CO2 uptake with temperature was observed and dryness influence overrules temperature influence.

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Fichiers liés : 2010_Yi_Envrionmental Research Letters_1.pdf

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