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Name
HAL-CEA
Type
Institutional Repository
Items
30437 Publications
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OpenAIRE 3.0 (OA, funding)
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https://api.archives-ouvertes.fr/oai/cea
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  • MODÉLISATION : DE LA PHYSIQUE AU TRAITEMENT DU SIGNAL Modèles vibratoires dans les remontées mécaniques

    Combet , Par ,; Jaussaud , P; Martin , Nadine (2003)
    International audience; Les remontées mécaniques, au même titre que l'aéronautique, ont un fort besoin de modélisation. À l'aide du traitement du signal, nous avons pu modéliser certains des phénomènes vibratoires apparaissant dans ces installations : passages de pylônes et entrées/sorties de gare des appareils débrayables.

    A three-dimensional conservative coupling method between an inviscid compressible flow and a moving rigid solid

    Puscas , Maria Adela; Monasse , Laurent (2014)
    22 p.; We present a conservative method for the three-dimensional coupling between an inviscid compressible flow and a moving rigid solid. We consider an inviscid Euler fluid in conservativeform discretized using a high-order monotonicity-preserving Finite Volume method with a directional operator splitting.An Immersed Boundary technique is employed through the modification of the Finite Volume fluxesin the vicinity of the solid.The method yields exact conservation of mass, momentum and energ...

    Unveiling the ionic exchange mechanisms in vertically-oriented graphene nanosheet supercapacitor electrodes with electrochemical quartz crystal microbalance and ac -electrogravimetry

    Le , Tao; ARADILLA , D.; Bidan , G.; Billon , Florence; Delaunay , M.; Gérard , J.M. ,; Perrot , Hubert; Sel , Ozlem (2018)
    International audience; This work presents the first electrochemical quartz crystal microbalance (EQCM) results for vertically-oriented graphene nanosheets (VOGNs) as supercapacitor electrodes. Conventional EQCM technique delivered primary insights on the ionic exchange mechanisms between VOGNs and organic electrolytes, showing a major contribution of anions. A more advanced electrogravimetric methodology, ac-electrogravimetry, was then used to access specific dynamic attributes for each spec...

    Martinique

    Bérard , Benoît; Espersen , Ryan; White , Cheryl (2014)
    International audience; This notice is a short synthesis presenting the main result of archaeological researches in Martinique about precolonial and colonial périod; Cette notice est constituée par une courte synthèse présentant les principaux programmes archéologiques ayant concerné l'étude de la Martinique, tant pour la période précolombienne que pour la période coloniale

    Thermodynamics of water adsorption in model structured molecular systems including analogues of hemicelluloses, crystalline cellulose and lignin

    Barbetta , Aurelio (2017)
    The so-called “wood material” is a complex, highly anisotropic and hierarchically organized nanocomposite. At the nanometric scale, it is characterised by stiff crystalline cellulose nanofibres parallel to each others embedded in a matrix of a much softer, less anisotropic, gel of hemicelluloses, lignin and water. This matrix is hygroscopic and the solvent uptake is controlled by molecular forces like entropy, H-bonding of polysaccharides to cellulose nano-crystals and hydration force. The sw...
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