WorldWideScience

Sample records for application aux marches

  1. Banque chef de File, syndicat bancaire et introduction en bourse : application aux marchés boursiers européens.

    OpenAIRE

    Bernoussi, Achraf

    2012-01-01

    L'introduction en Bourse est une opération de financement majeure dans la vie d'une entreprise. Le choix des intermédiaires-conseils revêt une importance capitale, particulièrement celui du syndicat bancaire dont les responsabilités sont importantes, à l'image de la certification du prix d'émission et la réussite du placement des titres. Les multiples asymétries d'information et les anomalies des marchés boursiers impliquent pour l'émetteur de prendre les bonnes décisions. Nous nous intéresso...

  2. Comportements des marchés et perception de la faillite de Lehman Brothers aux États-Unis

    OpenAIRE

    Dumontaux, Nicolas; Pop, Adrian

    2010-01-01

    La faillite spectaculaire de la banque d'investissement Lehman Brothers a été perçue par de nombreux analystes comme un véritable point de retournement dans la crise financière actuelle. Le spectre du risque systémique a semé la panique parmi les investisseurs, non seulement aux États-Unis, mais aussi sur les marchés financiers internationaux. À l'aide de séries boursières sur le cours des actions des établissements financiers, nous analysons la perception de la faillite de Lehman Brothers au...

  3. Application de la combustion catalytique aux turbines à gaz

    Science.gov (United States)

    Lebas, E.; Martin, G. H.

    2002-04-01

    La réduction des émissions d'oxydes d'azote sur turbines à gaz est obtenue par diminution de la température au sein de la chambre de combustion. Les techniques possibles comprennent l'injection d'eau ou de vapeur, la combustion pauvre et l'oxydation catalytique. Parmi celles-ci, la dernière est la plus prometteuse en terme de coûts et de performances, avec des émissions de NOx ramenées à un seul chiffre (typiquement inférieures à 3 ppm). L'IFP travaille depuis maintenant 10 ans sur l'adaptation de la combustion catalytique aux turbines à gaz. Les études ont été conduites au travers de projets européen tels que AGATA (Advance Gas Turbine for Automotive Application) et ULECAT (Ultra Low CATalytic combustor for dual fuel gas turbine). Le premier projet était destiné au développement de véhicules hybrides et le second à la combustion stationnaire de biogaz et de combustible Diesel. Les études en cours dans ce domaine portent sur le développement d'une unité de cogénération intégrant une microturbine à combustion catalytique. Les travaux menés à l'IFP concernent la mise au point de catalyseurs répondant aux exigences de la combustion catalytique en turbine à gaz et le développement de chambres de combustion permettant la mise en oeuvre de ces catalyseurs.

  4. Ti1-xAux Alloys: Hard Biocompatible Metals and Their Possible Applications

    Science.gov (United States)

    Svanidze, Eteri; Besara, Tiglet; Ozaydin, M. Fevzi; Xin, Yan; Han, Ke; Liang, Hong; Siegrist, Theo; Morosan, Emilia

    2015-03-01

    The search for new hard materials is often challenging from both theoretical and experimental points of view. Furthermore, using materials for biomedical applications calls for alloys with high biocompatibility which are even more sparse. The Ti1-xAux (0 . 22 dental, and prosthetic applications, where they could be used as both permanent and temporary components. Additionally, the ability of Ti1-xAux alloys to adhere to ceramic parts could reduce the weight and cost of these components. The work at Rice was supported by NSF DMR 0847681 (E.M. and E.S.).

  5. Contraintes auxmarches qualité dans les filières mil-sorgho au Sahel

    OpenAIRE

    Tallec, Fabien; Egg, Johny

    2009-01-01

    La demande de qualité dans les filières agroalimentaires du Sud s’étend aujourd’hui à des produits de grande consommation jusqu’ici très peu différenciés par le marché. Ainsi, les agricultures du Sahel doivent faire face à de nouvelles demandes de qualité spécifique de mil et de sorgho émanant du marché régional ouest-africain et des consommateurs urbains. On pourrait s’attendre à ce que cette demande de différenciation accrue rencontre la remarquable diversité des variétés de mil et de sorgh...

  6. Order of 30 March 1988 on licensing of gaseous radioactive effluent releases by the Fontenay-aux-Roses Nuclear Research Centre

    International Nuclear Information System (INIS)

    This Decree prescribes the documents and information the Fontenay-aux-Roses Nuclear Research Centre must provide to the Central Service for Protection against Ionizing Radiation (SCPRI) and lays down the permissible effluent release limits for the Centre

  7. Application of solar chargers to prospection instruments; Application des chargeurs solaires aux appareils de prospection

    Energy Technology Data Exchange (ETDEWEB)

    Caille, G. [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1960-07-01

    The use of conventional batteries has certain disadvantages, and for this reason high-voltage batteries have been gradually replaced in all prospection instruments by transistor supply systems, using less cumbersome sources of energy. All the same low voltages are still necessary, and in hot or damp countries the use of these batteries leads to consumptions out of all proportion to the services rendered. This is why the use of solar energy possesses real advantages. After a brief review of the basic ideas on semiconductors, this article describes a selenium solar battery which was developed by the Westinghouse brakes and signals society. (author) [French] L'utilisation de piles classiques presente certains inconvenients. C'est pourquoi, dans tous les appareils de prospection, les piles fournissant des tensions elevees ont ete remplacees au fur et a mesure par des alimentations a base de transistors, utilisant des sources d'energie moins encombrantes. Toutefois, il faut tout de meme avoir des tensions faibles et l'utilisation de ces piles entraine dans les pays chauds ou humides une consommation disproportionnee par rapport aux services rendus. C'est pourquoi l'emploi de l'energie solaire presente de reels avantages. Cet expose decrit, apres un rappel de notion de base sur les semi-conducteurs, une batterie solaire a base de selenium qui a ete realisee par la Societe des freins et signaux Westinghouse. (auteur)

  8. Precise AuxPt1-x Alloy Nanoparticle Array of Tunable Composition for Catalytic Applications

    Science.gov (United States)

    Jahn, Sarah; Lechner, Sebastian J.; Freichels, Helene; Möller, Martin; Spatz, Joachim P.

    2016-02-01

    A 3-dimensional Block Copolymer Micellar nanoLithography (BCML) process was used to prepare AuxPt1-x alloy nanoparticles (NPs) monodisperse in size and composition, strongly anchored onto SiO2-particles (0.2 wt.% AuxPt1-x/SiO2). The particles possess a face-centered cubic (fcc) crystal structure and their size could be varied from 3-12 nm. We demonstrate the uniformity of the Au/Pt composition by analyzing individual NPs by energy-dispersive X-ray spectroscopy. The strongly bound AuxPt1-x NPs catalyzed the oxidation of CO with high activity. Thermal ageing experiments in pure CO2 as well as in ambient atmosphere demonstrated stability of the size distribution for times as long as 22 h.

  9. Tolérance aux fautes dans les applications J2EE: Une solution scalable et générique

    OpenAIRE

    Bouchenak, Sara; Krakowiak, Sacha; De Plama, Noël

    2005-01-01

    La plate-forme J2EE définit un modèle pour développer des applications réparties dans une architecture multi-tiers, telles que les applications Web de commerce électronique. Avec la multiplication des couches logicielles et intergicielles, les applications Internet sont encore plus sujettes aux défaillances ; ces défaillances étant, pour la majorité, causées par des fautes logicielles ou des fautes de l'opérateur. Dans cet article, nous proposons un système de tolérance aux fautes qui traite ...

  10. Les marchés nouvellement ouverts à la compétition face aux règles du droit de la concurrence : Le cas du secteur des télécommunications

    OpenAIRE

    Glais, Michel

    2005-01-01

    Pendant longtemps, le concept de monopole naturel a servi à justifier le choix de confier à un seul opérateur l’offre de services tel que ceux du téléphone, de l’électricité ou des transports ferroviaires. Les limites de ces références théoriques mises en évidence, s’est développé l’idée de la possibilité, en particulier dans les industries de réseaux, de séparer la gestion des infrastructures de l’offre de services auxiliaires pouvant être confiée au jeu du marché. Initiée aux États-Unis, et...

  11. Décompositions parcimonieuses et persistantes de signaux multicanaux. Applications aux signaux MEEG.

    OpenAIRE

    Kowalski, Matthieu; Torrésani, Bruno

    2009-01-01

    On considère le problème de la régression parcimonieuse de signaux multicanaux sur des repères temps-fréquences. Les signaux multicanaux sont décomposés sur un unique repère en utilisant des coefficients vectoriels (i.e. multi-canal). La parcimonie apparaît habituellement grâce à des approches type “basis pursuit denoising” : la régression s'effectue en minimisant une fonctionnel qui fait intervenir un terme d'attache aux données 2 , et une pénalité 1 sur les coefficients. Dans cette contribu...

  12. Nanocristaux d'amidon: Preparation et Application aux emballages flexibles et barrières

    OpenAIRE

    Le Corre, Déborah

    2011-01-01

    Ce travail examine la potentielle mise à l'échelle industrielle des procédés de préparation des nanocristaux d'amidon (SNCs). Une caractérisation approfondie (morphologie, viscosité, stabilité thermique et propriétés en nanocomposites) de 5 SNCs différents montre une faible influence de la source botanique, contrairement aux nanocristaux de cellulose. L'analyse du procédé de préparation actuel des SNCs a conduit à 3 nouvelles stratégies d'optimisation et à la définition d'une nouvelle générat...

  13. L’enseignement supérieur aux Émirats Arabes Unis, entre émiratisation et contraintes du marché

    Directory of Open Access Journals (Sweden)

    William Gueraiche

    2012-07-01

    Full Text Available Depuis la création de la première université publique en 1977, le gouvernement fédéral émirien a fait de l’enseignement supérieur le principal outil de l’émiratisation (inclusion de cadres émiriens dans la fonction publique et le secteur privé. La multiplication des établissements d’enseignement supérieur privés depuis le milieu des années 1990 n’a pas changé cet objectif mais le ministère de l’enseignement supérieur est devenu progressivement une instance de régulation de l’offre universitaire par l’octroi d’accréditations. Quatre émirats (Abu Dhabi, Doubaï, Sharjah et Ras al Khaïmah se sont livrés une lutte féroce pour devenir le « hub » de l’enseignement supérieur aux E.A.U. et dans le Golfe. Ils ont essayé d’attirer des noms d’universités prestigieuses pour créer une dynamique. Cette compétition a tourné à l’avantage d’Abu Dhabi qui pourrait bien devenir le centre universitaire des Émirats voire de la région. Elle a aussi eu pour conséquence une redistribution des pouvoirs entre la fédération et les émirats locaux.

  14. Scorpio : une Approche d'Adaptation Structurelle de Composants Logiciels - Application aux Environnements Ubiquitaires

    OpenAIRE

    Bastide, Gautier

    2007-01-01

    La réutilisation à grande échelle de composants logiciels se révèle être un challenge pour la conception de nouvelles applications. Dans la grande majorité des cas, pour être intégrés à une application, les composants disponibles ont besoin d'être adaptés afin de faire face à la multiplicité des environnements de déploiement dotés de caractéristiques variables. Ainsi, pour éviter le redéveloppement de nouveaux composants et favoriser la réutilisation, de nombreuses approches ont proposé des te...

  15. Matériaux solide conducteur thermodurcissable : Application aux plaques bipolaires pour pile à combustible

    OpenAIRE

    Dessertenne, Estelle

    2012-01-01

    Among the new technologies for energy for sustainable development, PEM fuel cells offer seducing aspects. However, in order to make this technology fit large scale application requirements, it has to comply with stringent cost, performance, and durability criteria. While metal bipolar plates are penalized by their corrosion resistance and those based on graphite by their mechanical properties and cost (due to machining phases of the channels), the composite bipolar plates appear attractive be...

  16. Localisation par vision multi-spectrale. Application aux systèmes embarqués

    OpenAIRE

    Gonzalez, Aurélien

    2013-01-01

    The SLAM (Simultaneous Localization and Mapping) problematic is widely studied from years at LAAS. The aimed application is the development of a helping rolling system for planes on airports. This system has to work under any visibility and weather conditions ("SART" project, funding by DGE, with FLIR Systems, Thalès and Latecoère). During some weather conditions (fog, rain, darkness), one only visible camera is not enough to complete this task of SLAM. Firstly, in this thesis, we will study ...

  17. Application des ultrasons aux procédés de transformation des produits agroalimentaires

    OpenAIRE

    Pingret de Sousa, Daniella,

    2012-01-01

    L’utilisation des ultrasons dans l’industrie agro-alimentaire présente de nombreux avantages, tels que l’augmentation de la productivité et la diminution des coûts et des impacts environnementaux. Dans la première partie de ce travail, une brève introduction sur la théorie des ultrasons et ses applications en agro-alimentaire et l’utilisation de ces derniers pour l’extraction des polyphénols de marc de pomme en solution aqueuse seront présentés. Cette étude a été optimisée et présente d’excel...

  18. LA VOLATILITE STOCHASTIQUE DES MARCHES FINANCIERS : UNE APPLICATION AUX MODELES D'EVALUATION D'INSTRUMENTS OPTIONNELS EN TEMPS CONTINU

    OpenAIRE

    SY, ALEX

    2003-01-01

    PIERRE BATTEAU, PIERRE CHOLLET, ROLAND GILLET, FRANCOIS QUITTARD-PINON, PATRICK ROUSSEAU This phd thesis proposes an option valuation model allowing for jumps, stochastic volatility and stochastic interest rate, whose closed-form solution generalizes the formulas of Black & Scholes (1973), Heston (1993), Bates (1996) and Bakshi, Cao & Chen (1997). After having explored the relevancy of the GARCH deterministic autoregressive schemes in modeling the volatility term structure of the CBOE S&P ...

  19. Electromigration : structure de zone frontière, application à la séparation d'espèces en solution et aux transferts interfaciaux

    OpenAIRE

    Londiche, Henry

    1982-01-01

    L'application d'un champ de forces externes à un milieu liquide contenant un ou plusieurs solutés permet d'agir sur sa composition en modifiant les conditions d'équilibre thermodynamique. En particulier surimposer un champ électrique aux transferts entre phases non miscibles conduit à rendre complètes l'extraction liquide liquide d'un soluté contenu dans une phase non polaire ou la dissolution d'un sel réputé insoluble. Le passage d'un courant électrique continu d'intensité. constante dans un...

  20. Application of marching cubes algorithm in visualization of mineral deposits

    Institute of Scientific and Technical Information of China (English)

    Dewen Seng; Zhongxue Li; Cuiping Li; Chunmin Li

    2005-01-01

    An implementation scheme of the marching cubes (MC) algorithm was presented for the visualization of mineral deposits.The basic principles, processes and pitfalls of the MC algorithm were discussed. The asymptotic decider algorithm was employed to solve the ambiguity problem associated with the MC algorithm. The implementation scheme was applied to model and reconstruct the surfaces of mineral deposits, using the geological data obtained from an iron mine in China. Experimental results demonstrate the ability of the implementation scheme to solve the ambiguity problem, and illustrate the effectiveness and efficiency of the MC algorithm in the visualization of mineral deposits.

  1. Entre la veille stratégique et l'innovation, la démarche de veille créative : Ce que la veille créative emprunte aux wargames sur plateau

    OpenAIRE

    Goria, Stéphane

    2009-01-01

    De nombreuses formes de veilles ont déjà vu le jour. Chacune propose une facette qui lui est propre et permet soit de comprendre qui la réalise, sur quoi elle porte, ses objectifs ou comment elle est réalisée. Dans cet article, nous présentons une nouvelle forme de veille dite : veille créative. Elle se positionne, notamment, entre les veilles concurrentielle et prospective. Elle a pour objectif de donner de nouveaux moyens aux veilleurs pour identifier des menaces, des opportunités et des co...

  2. Application of Continuous Thermodynamics to Natural-Gas Mixtures Application de la thermodynamique continue aux mélanges de gaz naturel

    Directory of Open Access Journals (Sweden)

    Prausnitz J. M.

    2006-11-01

    Full Text Available This work reviews recent progress in the application of continuous thermodynamics towards calculation of phase equilibria in natural-gas mixtures. In such mixtures, there may be too many components to identify each component individually. Continuous thermodynamics provides a theoretical framework for representing the composition of a portion of the natural-gas mixture by a continuous distribution function. Advances in continuous thermodynamics are discussed in three areas :(1 Characterization and representation of composition in a many-component mixture(2 Development and application of molecular-thermodynamic models for continuous mixtures, and(3 Implementation of efficient numerical techniques for solving material-balance and phase-equilibrium equations. While continuous thermodynamics provides a useful tool for calculation of phase equilibria in natural-gas mixtures, successful implementation requires better chemical-analytical characterization methods. Further, improved semi-theoretical techniques must be developed to relate experimental characterization information to physically significant parameters in molecular-thermodynamic models. Ce travail examine les récents développements de l'application de la thermodynamique continue au calcul des équilibres de phases de mélanges de gaz naturel. Dans ces mélanges, les composants sont souvent en trop grand nombre pour qu'on puisse les identifier individuellement. La thermodynamique continue fournit un schéma théorique permettant de représenter la composition d'une partie de mélange de gaz naturel par une fonction de distribution continue. Les progrès de la thermodynamique continue sont examinés dans les trois domaines suivants : 1 caractérisation et représentation de la composition d'un mélange de plusieurs produits; 2 mise au point et application des modèles de thermodynamique moléculaire aux mélanges continus; 3 mise en oeuvre de techniques numériques efficaces pour r

  3. La Valeur Informationnelle du Capital Immatériel : Application aux Entreprises Technologiques Nouvellement Introduites En Bourse (1997 – 2004)

    OpenAIRE

    Bejar, Yosra

    2006-01-01

    Cette thèse explore la valeur informationnelle du capital immatériel dans un contexte d'introduction en bourse. La démarche suivie pour argumenter cette thèse nous a conduits, dans une première partie, à justifier notre positionnement théorique et à développer nos hypothèses de recherches. Cette première étape nous a orientés vers l'étude de l'environnement des introductions en bourse, l'analyse des concepts qui entourent le capital immatériel et les facteurs qui influencent sa publication.No...

  4. Determination of a PWR key neutron parameters uncertainties and conformity studies applications; Determination des incertitudes liees aux grandeurs neutroniques d'interet des reacteurs a eau pressurisee a plaques combustible et applications aux etudes de conformite

    Energy Technology Data Exchange (ETDEWEB)

    Bernard, D

    2002-07-01

    The aim of this thesis was to evaluate uncertainties of key neutron parameters of slab reactors. Uncertainties sources have many origins, technologic origin for parameters of fabrication and physical origin for nuclear data. First, each contribution of uncertainties is calculated and finally, a factor of uncertainties is associated to key slab parameter like reactivity, isotherm reactivity coefficient, control rod efficiency, power form factor before irradiation and lifetime. This factors of uncertainties were computed by Generalized Perturbations Theory in case of step 0 and by directs calculations in case of irradiation problems. One of neutronic conformity applications was about fabrication and nuclear data targets precision adjustments. Statistic (uncertainties) and deterministic (deviations) approaches were studied. Then neutronics key slab parameters uncertainties were reduced and so nuclear performances were optimised. (author)

  5. Conception and test of an integrated circuit (ASIC): application to multiwire chambers and photomultipliers of the GRAAL experience; Conception et test d`un circuit integre (ASIC): application aux chambres multifils et aux photomultiplicateurs de l`experience GRAAL

    Energy Technology Data Exchange (ETDEWEB)

    Bugnet, H.

    1995-11-21

    The nuclear physics project GRAAL (GRenoble Anneau Accelerateur Laser) located at the European Synchrotron Radiation Facility (ESRF) in Grenoble produces a high energy photon beam with a maximum energy of 1.5 GeV. This gamma beam is obtained by Compton backscattering and can be polarized easily. It permits to probe, in an original way, the structure of the nucleon. The associated detector system includes multiwire proportional chambers and scintillator hodoscopes. A kit of six ASICs (Application Specific Integrated Circuit) has been developed and used for the signal processing and data conditioning up to the level of the data acquisition. This integrated electronics can be mounted right on the detectors. Obvious advantages, due to the reduction of the length of the wires and the number of connections, are an improvement of the signal quality and an increase of the reliability. The Wire Processor (WP), ASIC designed and tested during this thesis, treats the signals from the chamber wires and the photomultipliers. In one chip, there are two identical channels permitting the amplification, the amplitude discrimination, the generation of a programmable delay and the writing in a two state memory in case of coincidence with an external strobe signal. The measurement of the multiwire chamber efficiency demonstrates the functioning of the WP, the data conditioning electronics, the data acquisition and the chamber itself. (author). 62 refs., 111 figs., 13 tabs.

  6. Critère de fatigue polycyclique pour des matériaux anisotropes : application aux monocristaux

    Science.gov (United States)

    Cano, Florian; Constantinescu, Andrei; Maitournam, Habibou

    2004-02-01

    The high-cycle fatigue criteria based on a macroscopic-mesoscopic scale interpretation, initiated by Dang Van, were used essentially for polycrystalline materials. In the existing criteria the material isotropy at both mesoscopic and macroscopic scales plays a key role. The purpose of this paper is to revisit the macroscopic to mesoscopic fatigue approach taking into account the material anisotropy and some results obtained by Bui. The possible applications are some anisotropic steels or monocrystalline structures such as stitanium turbine blades. To cite this article: F. Cano et al., C. R. Mecanique 332 (2004).

  7. ANALYSE ET SYNTHESE D'UNE ARCHITECTURE COOPERATIVE POUR LA COMMANDE TOLERANTE AUX DEFAUTS - APPLICATION A UN SYSTEME AERONAUTIQUE

    OpenAIRE

    Cieslak, Jérôme

    2007-01-01

    This thesis discusses the design of an active Fault Tolerant Control (FTC) strategy for improvement of the operational control capability of the safety critical systems. The FTC strategy works in such a way that once a fault is detected by the Fault Detection and Isolation (FDI) unit, a compensation loop is activated for safe recovery. A key feature of the proposed strategy is that the design of the FTC loop is done independently of the nominal control law already in place. For a given applic...

  8. Aux origines du monde

    CERN Multimedia

    2004-01-01

    "C'est l'histoire d'une aventure humaine, scientifique, international qui a vu le jour il y a cinquante ans, aux confins de la Suisse et du département de l'Ain. Le plus grand laboratoire de physique des particules du monde, le Cern, a été fondé en 1954. Les festivités organisées à l occasion de cet anniversaire connaîtront leur point d'orgue le 16 octobre prochain, avec portes-ouvertes, accueil de personallités et inauguration d'un monumnet spécifique, le Globe de l'innovation" (2 pages)

  9. Observation et diagnostic de processus industriels à modèle non linéaire : application aux machines électriques

    OpenAIRE

    Mahamoud, Ayan

    2010-01-01

    Cette thèse porte sur la définition d'une stratégie robuste pour le diagnostic des processus industriels à modèle non linéaire. La stratégie définie repose sur l'utilisation d'observateurs non linéaires non seulement pour le diagnostic mais aussi pour la commande de ces systèmes. L'objectif est triple. L'observateur synthétisé devra reconstruire les variables d'état, être sensible aux défauts pour le diagnostic tout en étant robuste aux perturbations et autres incertitudes paramétriques pour ...

  10. ESTIMATION DES PERTES FER DANS LES MACHINES ELECTRIQUES.
    MODELE D'HYSTERESIS LOSS SURFACE ET APPLICATION AUX MACHINES SYNCHRONES A AIMANTS.

    OpenAIRE

    Gautreau, Thierry

    2005-01-01

    Suite aux directives européennes incitant les constructeurs de moteurs électriques à supprimerde leur offre, les moteurs à faible rendement, une politique de conception de moteurs à hautrendement est engagée. Toutefois, l'évaluation préalable, en simulation, de ce paramètre, etnotamment des pertes fer de la machine reste aujourd'hui un problème difficile. Dans cetteoptique, depuis quelques années, un modèle, nommé « Loss Surface », de calcul a posteriorides pertes fer sous le logiciel élément...

  11. Synthèse de solvants et plastifiants d’origine naturelle selon une démarche d’éco-conception. Application à la formulation de vernis à ongles

    OpenAIRE

    Bandres, Matthieu

    2007-01-01

    La démarche d'éco-conception mise en oeuvre au développement de biosolvants (acétates, carbonates, isovalérates) et bioplastifiants (carbonates) qui représentent une alternative compétitive aux molécules pétrochimiques tout en répondant aux nouvelles réglementations cosmétiques. La valorisation de matières premières renouvelables telles que le glycérol ou l'huile de fusel, co-produit de la distillation du biothanol, a permis la synthèse d'ingrédients aux propriétés physico-chimiques adaptées ...

  12. Etude, analyse et modélisation physique de la production de la parole avec applications aux troubles liés à une surdité profonde

    OpenAIRE

    Delebecque, Louis

    2015-01-01

    L’apprentissage du langage parlé nécessite un contrôle musculaire très précis des différents organes intervenant dans la production de la parole. La production de sons voisés, qui résulte de l’auto-oscillation des cordes vocales, est notamment influencée par l’ensemble du système phonatoire, du diaphragme jusqu’aux lèvres. Les travaux réalisés dans le cadre de cette thèse s’inscrivent dans un contexte de modélisation physique de la parole. Les objectifs s’articulent autour de la compréhension...

  13. Détection et isolation de pannes basées sur la platitude différentielle. Application aux engins atmosphériques.

    OpenAIRE

    Zhang, Nan

    2010-01-01

    Ce travail de thèse aborde le problème de la détection et de l’isolation des pannes à base de modèle du système dynamique non linéaire. Les techniques de détection et d’identification de pannes sont déjà appliquées aux systèmes industriels et elles jouent un rôle important pour assurer les performances attendues des systèmes automatiques. Les différentes approches du diagnostic des systèmes dynamiques semblent être souvent le résultat de contextes différents notamment en ce qui concerne les a...

  14. Les déterminants du coût du capital des petites capitalisations : application aux segments B et C de la Bourse de Paris

    OpenAIRE

    Marrot, Olivier

    2008-01-01

    La spécificité des petites capitalisations (l’effet taille), est au centre des recherches en finance depuis de nombreuses années. Peu de travaux se sont cependant concentrés sur ce compartiment. Notre recherche porte sur les sociétés des listes B et C d’Euronext Paris sur la période 1994-2004. Le modèle APT avec utilisation d’attributs spécifiques comme sensibilité aux risques affectant la rentabilité des titres, palie la faible significativité des bêtas. Conformément à la littérature sur les...

  15. Contribution à la conception de circuits intégrés analogiques en technologie CMOS basse tension pour application aux instruments d'observation de la Terre

    OpenAIRE

    Standarovski, Denis

    2005-01-01

    Le présent mémoire de thèse s'inscrit dans la problématique d'intégration de chaînes pour traitement du signal vidéo issu d'un capteur CCD dédiées aux instruments d'observation de la Terre. La solution présentée à travers cette étude consiste à concevoir des circuits intégrés spécifiques (ASIC) analogiques avec des technologies CMOS sub-microniques basse-tension, principalement développées pour les circuits numériques complexes. Dans une première partie, nous présentons le contexte de l'étude...

  16. 0.25{mu}m radiation tolerant technology for space applications; Technology 0.25 {mu}m tolerante aux radiations pour les applications spatiales

    Energy Technology Data Exchange (ETDEWEB)

    Haddad, N.; Brady, F.; Scott, T.; Yoder, J. [Lockheed Martin Federal Systems, Manassas, VA (United States)

    1999-07-01

    Lockheed Martin federal systems has developed a state-of-the-art radiation tolerant 0,25 {mu}m CMOS capability that is compatible with commercial foundries as well as radiation hardened fabrication. A technology test chip was designed, fabricated and evaluated for performance, power and radiation hardness in order to validate the methodology and evaluate the technology. Testing results show that -) the active transistor threshold shift is negligible for 0.25 {mu}m CMOS, -) the hardened STI (shallow trench isolation) can support Mega-rad applications, and -) the holding voltage is well beyond the operating voltage of 2.5 V. This technology is intended to support high density, high performance and low power space applications.

  17. Application of Continuous Thermodynamics to Natural-Gas Mixtures Application de la thermodynamique continue aux mélanges de gaz naturel

    OpenAIRE

    Prausnitz J. M.; Cotterman R. L.

    2006-01-01

    This work reviews recent progress in the application of continuous thermodynamics towards calculation of phase equilibria in natural-gas mixtures. In such mixtures, there may be too many components to identify each component individually. Continuous thermodynamics provides a theoretical framework for representing the composition of a portion of the natural-gas mixture by a continuous distribution function. Advances in continuous thermodynamics are discussed in three areas :(1) Characterizatio...

  18. Development of interface tracking method. Two-phase flows applications; Developpement d'une methode de suivi d'interface. Applications aux ecoulements diphasiques

    Energy Technology Data Exchange (ETDEWEB)

    Tanguy, S.

    2004-11-15

    Spray formation mechanisms study from a liquid-gas flow is a fundamental research subject, which industrial applications are large, especially in combustion and propulsion field. Numerical simulation of such flows appear as an essential complement to experimental and theoretical studies, for comprehension and accurate prediction of such physical processes. In this study we developed an numerical interface tracking technique with a Navier-Stokes solver to study accurately the liquid-gas interface dynamics. We describe Level Set method which has been used to track interface motion, and numerical methods for solving Navier-Stokes equations. Different numerical schemes have been tested to improve the computation accuracy. Ghost Fluid Method enables a robust and accurate treatment of discontinuities across the liquid-gas interface. The codes developed (2D, 3D, parallelization MPI) are then used to study droplets collisions. Comparisons with experimental results show that simulations are realistic and predictive. Next, feasibility studies are done on more complex configurations. Droplets spray formation from primary atomization of a liquid jet seems to be especially a promising investigation field for such simulations. Finally, reactive interfaces propagation, as liquid vaporization and premixed combustion have also been studied using Ghost Fluid Method to impose specific jump conditions. (author)

  19. Il mercato del lavoro nel mutamento del sistema penitenziario: dalle rivoluzioni industriali ai networks sociali / Labour market and changement of the penitentiary system: from the Industrial Revolutions to the social networks / Marché du travail et changement du système pénitentiaire à partir des révolutions industrielles jusqu'aux réseaux sociaux

    Directory of Open Access Journals (Sweden)

    Fanci Giovanna

    2008-10-01

    Full Text Available There is a close connection between the prison institution and the labour market which leads back to the origins of prison, in a modern sense. The social, economic and political background of this relationship is marked by the “industrial revolutions”, because during these times the ideas of «division of labour» and «discipline» were defined and consequently influenced the new prison organization models. The Penitentiary Act recognizes the prisoner's right to work. Therefore to fill the gap between the prison and the territory, a political integrated model – both social and penitentiary – is required. In the text, this will be illustrated by experiences of prisoners and ex-prisoners at the Information Office Windows. The network method has given input to a procedure considered as an efficient way of managing the social complexity and a fair services distribution device; but, at the same time, it introduces “alternative” forms of social control.La naissance des prisons et le marché du travail sont liés par une relation qui revient aux origines de la prison en sens moderne. La scène qui fait d’arrière-plan à cette relation est contremarquée par les révolutions industrielles pendant lesquelles les notions de «division du travail» et de «discipline» ont été définies et ont étés décisives afin d'élaborer un modèle nouveau d'organisation des prisons. Aujourd’hui la législation pénitentiaire reconnaît au prisonnier le droit au travail: de cette façon, la liason entre la prison et le territoire requiert un plan intégré composé par de politiques pénitentiaires et sociales, ici expliqué par l’expérience positive des Guichets d'information pour détenus et ancien détenus. Le système de réseau a fait démarrer une “proceduralisation” qui apparaît un outil efficace de gestion de la complexité sociale et d’une equitable destination des services, mais qui risque de produire aussi des systèmes

  20. Un théorème limite conditionnel. Applications à l'inférence conditionnelle et aux méthodes d'Importance Sampling.

    OpenAIRE

    Caron, Virgile

    2012-01-01

    Cette thèse présente une approximation fine de la densité de longues sous-suites d'une marche aléatoire conditionnée par la valeur de son extrémité, ou par une moyenne d'une fonction de ses incréments, lorsque sa taille tend vers l'infini. Dans le domaine d'un conditionnement de type grande déviation, ce résultat généralise le principe conditionnel de Gibbs au sens où il décrit les sous suites de la marche aléatoire, et non son comportement marginal. Une approximation est aussi obtenue lorsqu...

  1. A SMART CAMERA PROCESSING PIPELINE FOR IMAGE APPLICATIONS UTILIZING MARCHING PIXELS

    Directory of Open Access Journals (Sweden)

    Michael Schmidt

    2011-10-01

    Full Text Available Image processing in machine vision is a challenging task because often real-time requirements have to bemet in these systems. To accelerate the processing tasks in machine vision and to reduce data transferlatencies, new architectures for embedded systems in intelligent cameras are required. Furthermore,innovative processing approaches are necessary to realize these architectures efficiently. Marching Pixelsare such a processing scheme, based on Organic Computing principles, and can be applied for example todetermine object centroids in binary or gray-scale images. In this paper, we present a processing pipelinefor smart camera systems utilizing such Marching Pixel algorithms. It consists of a buffering template forimage pre-processing tasks in a FPGA to enhance captured images and an ASIC for the efficientrealization of Marching Pixel approaches. The ASIC achieves a speedup of eight for the realization ofMarching Pixel algorithms, compared to a common medium performance DSP platform.

  2. A Smart Camera Processing Pipeline for Image Applications Utilizing Marching Pixels

    Directory of Open Access Journals (Sweden)

    Michael Schmidt

    2011-09-01

    Full Text Available Image processing in machine vision is a challenging task because often real-time requirements have to bemet in these systems. To accelerate the processing tasks in machine vision and to reduce data transferlatencies, new architectures for embedded systems in intelligent cameras are required. Furthermore,innovative processing approaches are necessary to realize these architectures efficiently. Marching Pixelsare such a processing scheme, based on Organic Computing principles, and can be applied for example todetermine object centroids in binary or gray-scale images. In this paper, we present a processing pipelinefor smart camera systems utilizing such Marching Pixel algorithms. It consists of a buffering template forimage pre-processing tasks in a FPGA to enhance captured images and an ASIC for the efficientrealization of Marching Pixel approaches. The ASIC achieves a speedup of eight for the realization ofMarching Pixel algorithms, compared to a common medium performance DSP platform.

  3. Les raisons d'être de la franchise dans les transactions de services aux entreprises

    OpenAIRE

    Allam, Délila

    2008-01-01

    La franchise, comme forme hybride de coordination procède à une allocation asymétrique des droits juridiques et économiques entre les parties. Elle constitue une forme de coordination particulièrement performante en parvenant à équilibrer incitation et contrôle. Pourtant, les prestations de services aux entreprises représentent moins de 7% des réseaux de franchise recensés en France. Nous montrons pourquoi les marchés des services aux entreprises pourraient devenir de "nouvelles terres de con...

  4. The Text of the Agreement of 2 March 1977 between the Agency and Pakistan for the Application of Safeguards in Connection with the Supply of Uranium Concentrate

    International Nuclear Information System (INIS)

    The text of the Agreement of 2 March 1977 between the Agency and Pakistan for the application of safeguards in connection with the supply of uranium concentrate from Niger is reproduced in this document for the information of all Members. The Agreement entered into force pursuant to Article 24, on 2 March 1977.

  5. [Research Conducted at the Institute for Computer Applications in Science and Engineering for the Period October 1, 1999 through March 31, 2000

    Science.gov (United States)

    Bushnell, Dennis M. (Technical Monitor)

    2000-01-01

    This report summarizes research conducted at the Institute for Computer Applications in Science and Engineering in applied mathematics, computer science, fluid mechanics, and structures and materials during the period October 1, 1999 through March 31, 2000.

  6. MARCHING CUBES BASED FRONT TRACKING METHOD AND ITS APPLICATION TO SOME INTERFACE INSTABILITY PROBLEMS

    Institute of Scientific and Technical Information of China (English)

    WANG Jing-yi; ZOU Jian-feng; ZHENG Yao; REN An-lu

    2011-01-01

    A front tracking method based on a marching cubes isosurface extractor,which is related filter generating isosurfaces from a structured point set,is provided to achieve sharp resolution for the simulation of non-diffusive interfacial flow.Compared with the traditional topology processing procedure,the current front tracking method is easier to be implemented and presents high performance in terms of computational resources.The numerical tests for 2-D highly-shearing flows and 3-D bubbles merging process are conducted to numerically examine the performance of the current methodology for tracking interfaces between two immiscible fluids.The Rayleigh-Taylor (RT) and Richtmyer-Meshkov (RM) instability problems are successfully investigated with the present marching cubes based front tracking method.

  7. Le marché du « plus gros bourg de France »

    OpenAIRE

    Eizner, Nicole; Hervieu, Bertrand

    2003-01-01

    Dans cet article sur le marché hebdomadaire qui se tient à Nogent-le-Rotrou, le samedi matin, on s'efforce de montrer l'évolution historique d'un marché agricole qui, de lieu des échanges économiques pour producteurs et entre producteurs (marché aux grains, aux bestiaux, vente directe de produits agricoles), s'est transformé en espace où convergent production de masse et marges de la production locale (agricole et artisanale). C'est maintenant un marché de pure consommation dont le rôl...

  8. Estimation de l'état pour la surveillance des systèmes de grandes dimensions. Application aux réseaux électriques

    OpenAIRE

    Thabet, Assem

    2012-01-01

    This work deals with the state estimation and diagnosis of nonlinear systems with application to power systems. Dynamic modeling is performed using an index 1 property and decoupling techniques. New methods of state estimation, based on Extended Kalman Filter including a sliding window of measurements, are proposed to improve the robustness and accuracy. A new convergence study based on Lyapunov function and conditioning of the observability matrix is proposed to ensure the convergence of the...

  9. Etude électromécanique de nanofils piézoélectriques semi conducteurs. Application aux capteurs et recuperateurs d’énergie mecaniques

    OpenAIRE

    Hinchet, Ronan

    2014-01-01

    Smart systems are the combined result of different advances in microelectronics leading to an increase in computing power, lower energy consumption, the addition of new features, means of communication and especially its integration and application into our daily lives. The evolution of the field of smart systems is promising, and the expectations are high in many fields: Industry, transport, infrastructure and environment monitoring as well as housing, consumer electronics, health care servi...

  10. Aux marges du monde arabe

    Directory of Open Access Journals (Sweden)

    Hélène Thiollet

    2004-09-01

    Full Text Available L’étude des migrations contemporaines des Érythréens vers le Yémen au tournant des années quatre-vingt-dix permet d’observer les transformations des dynamiques régionales à l’œuvre dans le monde arabe. Les migrations sont un phénomène sensible aux différents aspects (politiques, économiques, culturels, géographiques de l’intégration régionale. Celle si est envisagée dans cet article à travers une approche doublement marginale : -la marginalité géographique de l’Érythrée arabo-africaine et du Yémen, économi­quement isolé dans la péninsule Arabique, -l’étude des migrations formelles et informelles, élément souvent marginal dans l’étude des institutions et des échanges qui constituent un système régional intégré. Cette étude est fondée sur une série d’entretiens menés au Yémen entre février et avril 2002 auprès des administrations yéménites et de la population érythréenne.

  11. Perception multisensorielle pour la localisation d'un robot mobile en environnement extérieur, application aux véhicules routiers

    OpenAIRE

    Laneurit, Jean

    2006-01-01

    This thesis report deals with precise and uncorrupted localisation of mobile robots within a road environment associated to a precise numerical map. Le sujet traité dans cette thèse concerne la localisation précise et intègre de robots mobiles ( de véhicules routiers en l'occurence) dans un environnement routier cartographié. Pour ceci, nous proposons une approche multisensorielle hybridant les capteurs classiquement utilisés dans ce genre d'application (un GPS naturel, un odomètre et un g...

  12. Une approche pour la composition autonome de services de communication orientés QoS. Application aux protocoles de transport configurables

    OpenAIRE

    Van Wambeke, Nicolas

    2009-01-01

    Les dernières évolutions de l’Internet se sont traduites par l’émergence de nouvelles applications distribuées et par la multiplication des technologies réseaux (sans fils, mobiles. . . ) ainsi que des services offerts par les opérateurs sur de nouveaux types de terminaux (portable, PDA. . . ). L’enjeu socio économique majeur de ces avancées est le futur Internet ambiant, à la fois ubiquitaire et intelligent, au travers duquel l’utilisateur pourra, quelle que soit sa localisation ...

  13. Les TIC, un prétexte aux relations internationales

    OpenAIRE

    Rozzonelli, Carole

    2014-01-01

    La plupart de nos étudiants ne pouvant pas se permettre de passer quelques mois à l’étranger avant leur troisième année à l’université, nous avons développé une démarche pédagogique utilisant les nouvelles technologies. Il s’agit d’une expérience d’apprentissage originale : en nous référant fréquemment à la transmission en temps réel et aux nombreux services interactifs que l’Internet peut nous offrir de nos jours. Nos étudiants se servent de ressources en ligne pour l’apprentissage de l’angl...

  14. La fonction logistique, un outil performant d'analyse et de prévision à moyen terme. Application à la production de pétrole et de gaz aux Etats-Unis, en URSS et dans d'autres pays The Logistic Function, an Efficient Medium-Range Analysis and Forecasting Method

    OpenAIRE

    Seguret J.

    2006-01-01

    A partir de la similitude observée entre l'évolution de la production pétrolière d'un pays et celle de la pénétration d'un produit dans un marché (fonction logistique), l'auteur expose le principe d'une méthode originale qui permet, sous certaines conditions, de prévoir quelle sera la production annuelle probable d'un pays producteur à un horizon de 10 à 15 ans. La validité de cette méthode est d'abord démontrée sur l'exemple de la production pétrolière aux Etats-Unis. Elle est ensuite illust...

  15. Principe d'alimentation par convertisseurs multiniveaux à stockage intégré - Application aux accélérateurs de particules

    CERN Document Server

    Fahrni, Claude

    Facilities operating in cycles, such as particles accelerators, require pulsed power. Directly drawing this pulsed power from the industrial network is generally not acceptable. A system with a local energy storage system lessens the impact on the network. In this work, a power supply is proposed that allows pulsed operation of a proton synchrotron without disturbing the industrial network with large variations of active power. The context of this study is the search of a completely static replace ment of an existing inertial energy storage device. The application is the proton synchrotron of the CERN. Several solutions to store the energy needed by the proton synchrotron are studied, they include inertial energy storage, capacitive energy storage and magnetic energy storage. On this basis, the solution based on capacitive energy storage with interleaved multilevel converters is retained. The sizing of the storage elements and the filter is carried out. The control strategies are studied and designed. They ar...

  16. Les enjeux économiques et industriels liés au recours aux partenariats public-privédans le domaine spatialUne application : le contrat de Private Finance Initiative britannique Skynet V

    OpenAIRE

    Frédéric Marty

    2008-01-01

    Analyse économique du contrat de partenariat public-privé relatif aux satellites de télécommunications de défense Skynet V.Etude de la construction contractuelle et de sa renégociation : impact sur l'équilibre économique du contrat

  17. Les enjeux économiques et industriels liés au recours aux partenariats public-privé
    dans le domaine spatial
    Une application : le contrat de Private Finance Initiative britannique Skynet V

    OpenAIRE

    Marty, Frédéric

    2008-01-01

    Analyse économique du contrat de partenariat public-privé relatif aux satellites de télécommunications de défense Skynet V.Etude de la construction contractuelle et de sa renégociation : impact sur l'équilibre économique du contrat

  18. Vegetation mapping for tropical marine/coastal zone applications = Cartographie de la végétation, applications aux zones côtières et marines tropicales

    OpenAIRE

    Morgan, G A

    1992-01-01

    L'image multispectrale satellitaire appliquée aux zones tropicales, a été analysée afin de permettre une représentation pointue de la végétation par carte thématique jusqu'au 1/100 000 provenant d'une seule scène satellitaire. La clé du succès est dans le soin apporté au choix de la scène initiale et l'adoption d'une méthodologie basée sur une vérité terrain-botanique rigoureuse et fiable. Cette méthodologie utilisera un nombre adéquat de "caractérisations de parcelles" selon une surface cart...

  19. Control of Urea SCR Systems for US Diesel Applications Commande des systèmes de RCS à l’urée destinés aux applications Diesel US

    Directory of Open Access Journals (Sweden)

    van Nieuwstadt M.

    2011-09-01

    Full Text Available This paper sets out to qualify challenges in the control of urea selective catalytic reduction systems for NOx conversion in Diesel powertrains. We show the importance of ammonia storage control, and the difficulties in estimating it in the face of system uncertainties. The slow storage dynamics of the SCR catalyst are shown to be a major limiting factor on the performance of SCR systems in transient operation. Lastly we show the effect of sensor uncertainty on system performance and how NOx sensors can be used in conjunction with input correlation to distinguish NOx slip from ammonia slip. Cet article a pour objet de qualifier les défis en matière de commande des systèmes de réduction catalytique sélective (RCS dans une solution à base d’urée, pour la conversion des NOx au sein de groupes motopropulseurs Diesel. Nous montrons l’importance de la maîtrise du stockage d’ammoniac ainsi que les difficultés à l’estimer face aux incertitudes du système. Les dynamiques de stockage lentes du catalyseur de RCS s’avèrent constituer un facteur de limitation majeur quant aux performances des systèmes de RCS au cours d’un fonctionnement transitoire. Enfin, nous montrons l’effet de l’incertitude des capteurs sur les performances du système et comment les capteurs de NOx peuvent être utilisés en association avec une corrélation d’entrée pour distinguer une déviation de NOx d’un glissement d’ammoniac.

  20. Évolutions récentes du droit européen des marchés publics de Défense

    Directory of Open Access Journals (Sweden)

    Baudouin Heuninckx

    2012-02-01

    Full Text Available Cet article présente, dans leur contexte politique et économique, les évolutions du droit européen des marchés publics de défense au cours des cinq dernières années, en particulier la nouvelle directive applicable aux marchés de défense et de sécurité et le régime intergouvernemental qui peut être appliqué lorsque l’exemption de l’art. 346 du Traité sur le Fonctionnement de l’Union Européenne, qui permet d’exclure de l’application du droit européen certaines mesures nécessaires à la protection des intérêts essentiels de sécurité de l’État et liées à la production ou au commerce de matériel militaire, est appliqué. Ces innovations représentent sans doute la plus vaste évolution du droit des marchés publics de défense au sein de l’Union Européenne, et ont non seulement le potentiel d’ouvrir les marchés nationaux de l’armement à la concurrence, mais également de modifier de manière fondamentale le travail des acheteurs dans le domaine de la défense. Notre article aide à définir le droit applicable aux marchés publics de défense au sein de l’Union Européenne, et discute les récentes évolutions de ce droit en fonction de la spécificité des marchés d’armements et de leur impact politique et économique.

  1. Comptabilité environnementale et mondialisation. Quels défis ? Quels modèles pour y répondre ? Application d'un modèle Economie-Environnement-Impacts à l'évaluation des impacts environnementaux en Chine induits par l'Europe, et aux taxes carbone aux frontières de l'UE

    OpenAIRE

    Friot, Damien

    2009-01-01

    Cette thèse traite de l'intégration des contraintes liées à la mondialisation dans les méthodes de comptabilité environnementales. Nous proposons tout d'abord une analyse de la capacité des principales méthodes actuelles à répondre aux attentes sociétales et à relever les défis liés à la mondialisation. Nous développons à cette fin le premier cadre analytique spécifique à ces méthodes. Nous développons ensuite un modèle intégrant certaines des contraintes liées à la mondialisation. Ce modèle ...

  2. La sensibilisation aux valeurs liées à l’eau et à la bonne gouvernance

    OpenAIRE

    Smets, Henri

    2008-01-01

    Pour les économistes ‘traditionnels”, l’eau est une matière première indispensable à la vie humaine de la même manière que l’essence est indispensable aux moteurs des voitures et l’électricité aux ordinateurs. Aussi conviendrait-il, selon eux de traiter l’eau comme les autres marchandises et de la soumettre aux lois du marché afin d’en optimiser la gestion. Les difficultés concernant son approvisionnement et sa répartition entre les usagers seront automatiquement résolues par le mécanisme des...

  3. Practical superconductor development for electrical power applications. Quarterly report for the period ending March 31, 2000

    International Nuclear Information System (INIS)

    This is a multiyear experimental research program focused on improving relevant material properties of high-Tc superconductors (HTSs) and on development of fabrication methods that can be transferred to industry for production of commercial conductors. The development of teaming relationships through agreements with industrial partners is a key element of the Argonne program. Recent results are presented on YBa2Cu3Ox (Y-123) coated conductors, sheathed (Bi,Pb)2Sr2Ca2Cu3Ox (Bi-2223) tapes, and applications development

  4. Fabric composite radiators for space nuclear power applications. Final report, March 1993

    Energy Technology Data Exchange (ETDEWEB)

    Klein, A.C.; Al-Baroudi, H.; Gulshan-Ara, Z.; Kiestler, W.C.; Snuggerud, R.D.; Abdul-Hamid, S.A.; Marks, T.S.

    1993-03-24

    Nuclear power systems will be required to provide much greater power levels for both civilian and defense space activities in the future than an currently needed. Limitations on the amount of usable power from radioisotope thermal generators and the limited availability of radioisotope heat source materials lead directly to the conclusion that nuclear power reactors will be needed to enhance the exploration of the solar system as well as to provide for an adequate defense. Lunar bases and travel to the Martian surface will be greatly enhanced by the use of high levels of nuclear power. Space based radar systems requiring many kilowatts of electrical power can provide intercontinental airline traffic control and defense early warning systems. Since the, figure of merit used in defining any space power system is the specific power, the decrease in die mass of any reactor system component will yield a tremendous benefit to the overall system performance. Also, since the heat rejection system of any power system can make up a large portion of the total system mass, any reduction in the mass of the heat rejection radiators will significantly affect the performance of the power system. Composite materials which combine the high strength, flexibility, and low mass characteristics of Si% based fibers with the attractive compatibility and heat transfer features of metallic foils, have been proposed for use m a number of space radiator applications. Thus, the weave of the fabric and the high strength capability of the individual fibers are combined with the high conductivity and chemical stability of a metallic liner to provide a light weight, flexible alternative to heavy, rigid, metallic radiator structural containers. The primary focus of this investigation revolves around two applications of the fabric composite materials, notably a fabric heat pipe radiator design and the Bubble Membrane Radiator concept.

  5. La fonction logistique, un outil performant d'analyse et de prévision à moyen terme. Application à la production de pétrole et de gaz aux Etats-Unis, en URSS et dans d'autres pays The Logistic Function, an Efficient Medium-Range Analysis and Forecasting Method

    Directory of Open Access Journals (Sweden)

    Seguret J.

    2006-11-01

    Full Text Available A partir de la similitude observée entre l'évolution de la production pétrolière d'un pays et celle de la pénétration d'un produit dans un marché (fonction logistique, l'auteur expose le principe d'une méthode originale qui permet, sous certaines conditions, de prévoir quelle sera la production annuelle probable d'un pays producteur à un horizon de 10 à 15 ans. La validité de cette méthode est d'abord démontrée sur l'exemple de la production pétrolière aux Etats-Unis. Elle est ensuite illustrée par les résultats obtenus pour un certain nombre de pays : production future de gaz aux Etats-Unis, production pétrolière future du Canada, de l'URSS, du Venezuela et de l'ensemble du monde hors Moyen-Orient. On the basis of the similarity observed between the variation in the petroleum production of a country and that of the penetration of a product into the market (logistic function, this article describes the principle of an original method that can be used, under certain conditions, to forecast the probable annual production of a producing country in 10 to 15 years. The validity of this method is first demonstrated for the example of oil production in the United States. It is then illustrated by results obtained for various other countries, i. e. future gas production in the United States, future oil production of Canada, the Soviet Union, Venezuela and the world as a whole outside of the Middle East.

  6. Reconstruction of Petroleum Feedstocks by Entropy Maximization. Application to FCC Gasolines Reconstruction de coupes pétrolières par maximisation d’entropie. Application aux essences de FCC

    Directory of Open Access Journals (Sweden)

    Hudebine D.

    2011-06-01

    pétrolier, les coupes sont généralement des mélanges complexes de plusieurs centaines à plusieurs millions d’espèces chimiques différentes. De ce fait, les outils analytiques, même les plus performants, ne permettent pas de séparer et d’identifier l’ensemble des composés présents. Les fractions pétrolières sont donc actuellement caractérisées soit via des descripteurs macroscopiques moyens (densité, analyse élémentaire, résonance magnétique nucléaire, etc., soit à l’aide de techniques séparatives (distillation, chromatographie gaz ou liquide, spectrométrie de masse, etc. qui ne quantifient cependant que quelques grandes familles de molécules. Les méthodes de reconstruction de coupes pétrolières sont des approches informatiques qui permettent d’évoluer vers un détail plus moléculaire en se basant sur le principe suivant : définir des mélanges simplifiés mais cohérents de composés chimiques à partir de données analytiques parcellaires et de connaissances expertes du procédé étudié. Ainsi, la méthode de reconstruction par maximisation d’entropie, proposée dans cet article, est une technique récente et puissante permettant de déterminer les fractions molaires d’un mélange préétabli de composés chimiques en maximisant un critère entropique et en respectant les contraintes analytiques fixées par le modélisateur. L’utilisation de cette méthodologie permet de réduire le nombre de degrés de liberté du système de quelques milliers (correspondant aux fractions molaires des composés à quelques dizaines (correspondant aux paramètres de Lagrange associés aux contraintes analytiques et ainsi de diminuer fortement le temps de calcul nécessaire à la résolution du problème. Cette approche a été appliquée avec succès à la reconstruction d’essences de FCC en prédisant précisément la composition moléculaire de ce type de coupes pétrolières à partir d’une distillation simulée et d

  7. Application of foams to the processing of fabrics. Interim report, October 1, 1977-March 31, 1979

    Energy Technology Data Exchange (ETDEWEB)

    Duke, M.W.

    1979-04-01

    The primary objective of this project is to reduce the energy requirements for finishing fabrics by drastically reducing the water required to wet process the fabrics. Since less water is used, less energy is consumed in the evaporation of water. This is accomplished by replacing much of the water with air, making a foam and using it as the application medium. In the first six months of the project the practicality of foam fabric finishing on a commercial basis had been established. Limited yardage of fabrics equivalent in performance to conventionally wet finished fabrics were processed. In these mill trials, a range of foam fabric finishes including softeners, hand builders, durable press and shrink-resistant types were applied to cotton sheeting, corduroy and polyester/cellulosic blends, etc. In all cases, substantial energy savings were realized. Since the issuance of the first and second interim reports, commercial practice of foam fabric finishing continues to grow with cumulative total estimated as approaching 200,000,000 yards. A number of companies are currently using foam fabric finishing as a commercial production process. Additionally, the pilot range has been used to demonstrate foam fabric finishing to over twenty companies. The range has been used to demonstrate the foam acid dyeing of nylon carpets to several companies in this specialized area of textile processing. Active work still continues with these companies since the foam dyeing of carpets involves only about 1/5 the water used in the normal continuous dyeing of carpets. At the time of writing two carpet companies are actively working to evaluate foam dyeing on a mill scale. (LCL)

  8. Safety Training: Sensibilisation aux gestes et postures de travail

    CERN Multimedia

    Laetitia Laddada

    2004-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt.Nous vous proposons un nouveau cours de sécurité lié aux manutentions manuelles (durée 1 jour) : Sensibilisation aux gestes et postures de travail. Si vous êtes amené à manipuler régulièrement des charges lourdes ou volumineuses, cette formation peut vous aider à prévenir les lésions musculaires ou dorsales. A l'issue de cette formation, vous serez capable d'adopter et d'appliquer les principes de base de sécurité physique et d'&e...

  9. How Molecular Evolution Technologies can Provide Bespoke Industrial Enzymes: Application to Biofuels Comment les technologies d’évolution moléculaire peuvent fournir des enzymes industrielles sur mesure : application aux biocarburants

    Directory of Open Access Journals (Sweden)

    Fourage L.

    2013-08-01

    est l’un des principaux goulets d’étranglement dans le développement de la conversion biologique de la biomasse lignocellulosique en biocarburants. L’un des organismes les plus efficaces pour la production d’enzymes cellulolytiques est le champignon Trichoderma reesei, principalement grâce à sa capacité importante de sécrétion. La conversion de la cellulose en glucose implique trois types de cellulases travaillant en synergie : les endoglucanases (EC 3.2.1.4 clivant de façon aléatoire les liaisons glycosidiques en (3-1,4, les cellobiohydrolases (EC 3.2.1.91 attaquant la chaîne de cellulose aux deux extrémités afin de produire le cellobiose, dimère qui sera converti en glucose par l’action des (3-glucosidases (EC 3.2.1.21. De façon inattendue, la quantité de 3-glucosidase (BGL1 sécrétée par les souches de T. reesei représente un très faible pourcentage de la quantité totale des protéines sécrétées qui en fait donc une activité limitante du cocktail. Cette faible activité limite d’autant plus les performances du cocktail que le cellobiose représente le principal inhibiteur de la réaction cellulolyse par les cellobiohydrolases. Ce goulot d’étranglement peut être atténué soit par une surexpression de la (3-glucosidase chez T. reesei, soit par une amélioration de son activité spécifique. Après un bref aperçu des principales technologies existantes, cet exemple sera utilisé dans cette revue pour illustrer le potentiel des technologies d’évolution dirigée pour développer des enzymes répondant aux besoins de l’industrie des biotechnologies. Nous décrivons comment la mise en oeuvre d’une stratégie d’évolution dirigée par le L-ShufflingTM avec trois gènes parentaux provenant de la biodiversité microbienne permet d’obtenir des activités (3-glucosidases très améliorées par rapport à la Cel3a (3-glucosidase de T. reesei (activité spécifique 242 fois plus élevée pour le substrat pNPGIc. Cette am

  10. Evaluation of uncertainties of key neutron parameters of PWR-type reactors with slab fuel, application to neutronic conformity; Determination des incertitudes liees aux grandeurs neutroniques d'interet des reacteurs a eau pressurisee a plaques combustibles et application aux etudes de conformite

    Energy Technology Data Exchange (ETDEWEB)

    Bernard, D

    2001-12-01

    The aim of this thesis was to evaluate uncertainties of key neutron parameters of slab reactors. Uncertainties sources have many origins, technologic origin for parameters of fabrication and physical origin for nuclear data. First, each contribution of uncertainties is calculated and finally, a factor of uncertainties is associated to key slab parameter like reactivity, isotherm reactivity coefficient, control rod efficiency, power form factor before irradiation and life-time. This factors of uncertainties were computed by Generalized Perturbations Theory in case of step 0 and by directs calculations in case of irradiation problems. One of neutronic conformity applications was about fabrication and nuclear data targets precision adjustments. Statistic (uncertainties) and deterministic (deviations) approaches were studied. Then, neutronics key slab parameters uncertainties were reduced and so nuclear performances were optimized. (author)

  11. Commande multi-modèles tolérante aux défauts : Application au contrôle de la dynamique d'un véhicule automobile.

    OpenAIRE

    Oudghiri, Mohammed

    2008-01-01

    Cette thèse traite la synthèse de lois de commande tolérantes aux défauts (FTC) pour le contrôle de la dynamique du châssis du véhicule automobile. L'étude est basée sur l'approche multimodèle avec la formulation et la résolution des problèmes de synthèse de lois de commande en utilisant les techniques LMI (Inégalités Matricielles Linéaires).La première partie consacrée à la FTC passive comporte trois chapitres. La première concerne la synthèse d'une loi de commande multimodèle par retour d'é...

  12. Systèmes d'Information Scientifique : des modèles conceptuels aux annotations sémantiques Application au domaine de l'archéologie et des sciences du vivant

    OpenAIRE

    Savonnet, Marinette

    2013-01-01

    Les Systèmes d'Information Scientifique (SIS) sont des Systèmes d'Information (SI) dont le but est de produire de la connaissance et non pas de gérer ou contrôler une activité de production de biens ou de services comme les SI d'entreprise. Les SIS se caractérisent par des domaines de recherche fortement collaboratifs impliquant des équipes pluridisciplinaires et le plus souvent géographiquement éloignées, ils manipulent des données aux structures très variables dans le temps qui vont au-delà...

  13. Modélisation du procédé de soudage hybride Arc / Laser par une approche level set application aux toles d'aciers de fortes épaisseurs

    OpenAIRE

    Desmaison, Olivier; Bellet, Michel; Guillemot, Gildas

    2013-01-01

    Le procédé de soudage hybride Arc/Laser est une solution aux assemblages difficiles de tôles de fortes épaisseurs. Ce procédé innovant associe deux sources de chaleur : un arc électrique produit par une torche MIG et une source laser placée en amont. Ce couplage améliore le rendement du procédé, la qualité du cordon et les déformations finales. La modélisation de ce procédé par une approche Level Set permet une prédiction du développement du cordon et du champ de température associé. La simul...

  14. Transitions des exploitations agricoles vers l'agriculture biologique dans un territoire : approche par les interactions entre systèmes techniques et de commercialisation : Application aux aires d'alimentation de captages en Île-de-France

    OpenAIRE

    Petit, Caroline

    2013-01-01

    En réponse aux réglementations environnementales récentes incitant à une gestion préventive de la qualité de l’eau, l’agriculture biologique (AB) constitue une des solutions globales préconisée pour cette gestion préventive. L’objectif de cette thèse est d’étudier les transitions des exploitations agricoles vers l’AB dans les territoires, en prenant les aires d’alimentation de captages (AAC) en Île-de-France comme cas d’étude. En nous inscrivant en agronomie des territoires, nous développons ...

  15. Thermodynamic Aspects of Supercritical Fluids Processing: Applications of Polymers and Wastes Treatment Aspects thermodynamiques des procédés mettant en oeuvre des fluides supercritiques : applications aux traitements des polymères et des déchets

    Directory of Open Access Journals (Sweden)

    Beslin P.

    2006-11-01

    Full Text Available Supercritical fluid processes are of increasing interest for many fields : in supercritical fluid separation (petroleum-chemistry separation and purification, food industry and supercritical fluid chromatography (analytical and preparative separation, determination of physicochemical properties; as reaction media with continuously adjustable properties from gas to liquid (low-density polyethylene, waste destruction, polymer recycling; in geology and mineralogy (volcanoes, geothermal energy, hydrothermal synthesis; in particle, fibber and substrate formations (pharmaceuticals, explosives, coatings; in drying materials (gels. This paper presents the unusual physicochemical properties of supercritical fluids in relation to their engineering applications. After a short report of fundamental concepts of critical behavior in pure fluids, we develop in more details the tunable physicochemical properties of fluid in the supercritical domain. The second part of this paper describes the engineering applications of supercritical fluids relevant of chemical reactions and polymer processing. Each application presentation is divided in two parts : the first one recalls the basic concepts including general background, physicochemical properties and the second one develops the engineering applications relevant of the advocated domain. La mise en Suvre des fluides supercritiques est d'un intérêt croissant dans de nombreux domaines : pour la séparation (séparation et purification en pétrochimie, industrie alimentaire et la chromatographie par fluides supercritiques (séparation analytique et préparatoire, détermination des propriétés physicochimiques, comme milieux réactifs aux propriétés continûment ajustables allant du gaz au liquide (polyéthylène de faible densité, élimination des déchets, recyclage des polymères, en géologie et en minéralogie (volcanologie, énergie géothermique, synthèse hydrothermique, dans la formation des particules

  16. March streamflow

    Science.gov (United States)

    Streamflows during March were below normal along most of the Eastern Seaboard and in the southeastern and northwestern states. However, they were above normal in a wide band extending from Michigan southwest-ward into Texas, New Mexico, and Arizona (see map), according to the U.S. Geological Survey (USGS).USGS hydrologists reported that stream-flows were about normal or above at 65% of the stream-measurement index stations in the United States. A record high flow was measured on the Colorado River in Utah, and the level of the Great Salt Lake reached its highest point in 108 years.

  17. An asynchronous and parallel time-marching method: Application to three-dimensional MHD simulation of solar wind

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    An asynchronous and parallel time-marching method for three-dimensional (3D) time-dependent magnetohydrodynamic (MHD) simulation is used for large-scale solar wind simulation. It uses different local time steps in the corona and the heliosphere according to the local Courant-Friedrichs-Levy (CFL) conditions. The solar wind background with observed solar photospheric magnetic field as input is first presented. The simulation time for the background solar wind by using the asynchronous method is <1/6 of that by using the normal synchronous time-marching method with the same computation precision. Then, we choose the coronal mass ejection (CME) event of 13 November, 2003 as a test case. The time-dependent variations of the pressure and the velocity configured from a CME model at the inner boundary are applied to generate transient structures in order to study the dynamical interaction of a CME with the background solar wind flow between 1 and 230 Rs. This time-marching method is very effective in terms of computation time for large-scale 3D time-dependent numerical MHD problem. In this validation study, we find that this 3D MHD model, with the asynchronous and parallel time-marching method, provides a relatively satisfactory comparison with the ACE spacecraft obser- vations at L1 point.

  18. Study of the integration of distributed generation systems in the grid: application in micro-grids; Etude de structures d'integration des systemes de generation decentralisee: application aux microreseaux

    Energy Technology Data Exchange (ETDEWEB)

    Gaztanaga Arantzamendi, H

    2006-12-15

    The present PhD deals with an original micro-grid concept and its application as a Renewable Energy Source's (RES) grid integration scheme. This micro-grid is composed of RES generators as well as support systems that incorporate additional functionalities in order to improve RES integration into the grid. According to this concept, two practical micro-grid applications have been studied in detail: a residential micro-grid and a wind farm supported by DFACTS systems (STATCOM and DVR). In both applications, the control structures which are implemented at different levels and applied to the different micro-grid elements have been developed, analyzed by means of off-line simulations and finally validated in real-time conditions with physical reduced-scale prototypes. (author)

  19. Notes de voyage aux Iles Baleares

    Directory of Open Access Journals (Sweden)

    Maurice LOUIS

    2009-10-01

    Full Text Available Les excursions du 1Vº Cours de Préhistoire et d'Archéologie, organisé en 1950 par l'Université de Barcelone en collaboratión avec l'Institut de Prehistoire méditerranéenne du Consejo Superior de Investigaciones Científicas d'Espagne, on conduit les participants aux Iles Baléares afin d'étudier sur place la civilisation dite "des talayots" de Majorque et de Minorque.

  20. Spray Atomization Models in Engine Applications, from Correlations to Direct Numerical Simulations Modèles de spray dans les applications moteur, des corrélations aux simulations numériques directes

    Directory of Open Access Journals (Sweden)

    Dos Santos F.

    2011-09-01

    Full Text Available Sprays are among the very main factors of mixture formation and combustion quality in almost every (IC engine. They are of great importance in pollutant formation and energy efficiency although adequate modeling is still on development. For many applications, validation and calibration of models are still an open question. Therefore, we present an overview of existing models and propose some trends of improvement. Models are classified in zero dimensional and dimensional classes ranging from simple formulations aimed at close-to-real-time applications to complete detailed description of early atomization stages. Les sprays sont parmi les principaux facteurs de qualite, dans la formation du melange et la combustion, dans un grand nombre de moteurs (a combustion interne. Ils sont de toute premiere importance dans la formation de polluants et l’efficacite energetique, bien qu’une modelisation adequate soit encore en developpement. Pour un grand nombre d’applications, la validation et la calibration de ces modeles demeurent une question ouverte. Aussi, presentons-nous un apercu des modeles existants et proposons quelques voies d’amelioration. Les modeles sont classes en nondimensionnels et dimensionnels allant de formules simples dediees a des applications proches du temps reel a des descriptions detaillees des premiers stades de l’atomisation.

  1. Spray Atomization Models in Engine Applications, from Correlations to Direct Numerical Simulations Modèles de spray dans les applications moteur, des corrélations aux simulations numériques directes

    OpenAIRE

    Dos Santos F.; Le Moyne L.

    2011-01-01

    Sprays are among the very main factors of mixture formation and combustion quality in almost every (IC) engine. They are of great importance in pollutant formation and energy efficiency although adequate modeling is still on development. For many applications, validation and calibration of models are still an open question. Therefore, we present an overview of existing models and propose some trends of improvement. Models are classified in zero dimensional and dimensional classes ranging from...

  2. marche pour le choix et/ou la conception d'un moyen de soudage par FSW

    OpenAIRE

    ZIMMER-CHEVRET, Sandra; Langlois, Laurent; LAYE, Julien; GOUSSAIN, Jean-Claude; Martin, Patrick; BIGOT, Régis

    2009-01-01

    Les travaux de recherches présentés concernent l'industrialisation du procédé de soudage par friction malaxage, également appelé Friction Stir Welding (FSW). L'objectif est de fournir des outils aux industriels pour choisir et qualifier une machine pour leurs applications de FSW. Cet article présente une méthodologie pour qualifier et / ou concevoir les moyens de soudage adaptés à une application donnée. La démarche de qualification repose sur l'étude géométrique des pièces et sur l'analyse d...

  3. Development and applications of coherent imaging with improved temporal and spatial resolution; Developpement et applications de l'imagerie coherente aux rayons X a tres haute resolution spatiale et temporelle

    Energy Technology Data Exchange (ETDEWEB)

    Mokso, Rajmund

    2006-07-01

    This work has 2 purposes: the improvement of both temporal and spatial resolution of X-ray tomography. The first part is devoted to the technical aspects of the tomographic technique, particularly at the ESRF (European Synchrotron Radiation Facility) beamline ID19, and the application of the new acquisition scheme to the imaging of liquid foams. We have improved the temporal resolution and field of view of the setup, which allowed to obtain for the first time experimental data with good statistics on three dimensional liquid foams. In the second part of the thesis we have described the Kirkpatrick-Baez focusing system and its first applications. In terms of stability and image quality the developments presented in this part of the thesis provide valuable evidence for the feasibility of phase contrast tomography in magnifying geometry. Since the ultimate goal of this research is to improve the spatial resolution in tomography for applications, four different contributions are important for the characterization of the imaging system: 1) the thermal stability and mechanical imperfections, 2) effects of distortion induced by mirror imperfections, 3) effects of refraction on sample borders, and 4) phase propagation effects with the influence of the magnification. Each of these factors has been studied.

  4. Cherry blossom phenological data since the seventeenth century for Edo (Tokyo), Japan, and their application to estimation of March temperatures

    Science.gov (United States)

    Aono, Yasuyuki

    2015-04-01

    The changes in March mean temperatures in Edo (Tokyo), Japan, since the seventeenth century, were reconstructed using phenological data for the cherry blossoms of Prunus jamasakura deduced from old diaries and chronicles. The observations of the time of full blossoming and of cherry blossom viewing parties were acquired and used to construct a full-blossoming phenological data series for P. jamasakura. Phenological data from 207 of the years from 1601 to 1905 were used for this study. The reconstructed temperatures suggested the existence of two cold periods (the second half of the seventeenth century and the beginning of the nineteenth century), during which times the estimated March mean temperatures were about 4 °C and 5 °C, respectively. These two cold periods at Edo coincided with those reconstructed at Kyoto in previous studies. These cold periods coincided with two less extreme periods, the Maunder and Dalton minima, in the long-term solar variation cycle.

  5. A Marching Cubes Algorithm: Application for Three-dimensional Surface Reconstruction Based on Endoscope and Optical Fiber

    OpenAIRE

    Long, Zhongjie; Nagamune, Kouki

    2015-01-01

    International audience In this paper, a marching cubes (MC) algorithm is presented for the three-dimensional (3-D) surface reconstruction based on endoscope images. In general, the classical MC algorithm processes the 3-D medical images obtained from computed tomography (CT) or magnetic resonance (MR), while the volumetric data described in this work are not. Therefore, the purpose of this study mainly focuses on: (1) An active endoscope scanning system that equips an endoscope and optical...

  6. Colloids: a review of current knowledge with a view to application to phenomena of transportation within PWR; Colloides: point de vue sur les connaissances actuelles en vue d`une application aux phenomenes de transport dans les REP

    Energy Technology Data Exchange (ETDEWEB)

    Guinard, L.

    1996-12-31

    In an attempt to minimise dosimetry within the primary circuit of PWR units, research is being carried out into understanding the phenomena of transportation and deposition of corrosion products. It is therefore desirable to known the form of these corrosion products and the laws governing this form. It is generally considered that they are in soluble or particulate form. A third starts with a general presentation of colloids and goes on to define points which are useful, both on a theoretical and experimental level, in terms of application to phenomena of transportation within PWRs. (author). 69 refs., 30 figs., 6 tabs., 3 appends.

  7. By-law 00041 /MMe /DM from May 02, 2007 affecting the application of Article 58 of Ordinance 93-16 of 02 March 1993 concerning mining law

    International Nuclear Information System (INIS)

    This Mines and energy ministerial order presents in its first article, the conditions of application of paragraph 2 and 3 of article 58 of Ordinance 93-16 of 02 March 1993 concerning mining law completed by ordinance 99-48 of 05 November 1999 and modified by the Law 2006-26 of 09 August 2006, relatively to the movement of prospecting title. The Minister of Mines and energy authorises the movement of prospecting title (cession, transmission, confer, transfer partially or completely by the prospecting title holder) if it is not detrimental to the national interests. And conditions of interdictions of transactions in its article 2

  8. Modeling of the thermal transfer inside a porous environment: application to nuclear reactors in accident situation; Modelisation du transfert thermique dans un milieu poreux: application aux reacteurs nucleaires en situation accidentelle

    Energy Technology Data Exchange (ETDEWEB)

    Rubiolo, P.R

    2000-03-01

    The purpose of this report is to simulate heat exchanges occurring by conduction, by convection and by radiating in a porous medium made up of opaque particles in a semi-transparent fluid. Usually the determination of the macroscopic equations is based on homogenization techniques, but in the case of a major accident, the complexity of the problem is so overwhelming that semi-empirical methods are used to determine macroscopic coefficients. The author develops a new method to determine these coefficients, this method is based on the calculation of different tensors: the equivalent conductivity tensor, the radiative conductivity tensor, the thermal conductivity tensor and the heat exchange coefficient (h{sub sf}) between the solid phase and the fluid one. The first chapter briefly describes energy, impulse and mass balances. In the case of the energy balance the solid phase is not supposed to be in thermal equilibrium with the liquid phase. The second chapter presents an application of the porous media method to a one-dimensional and stationary problem, this application to a simple problem gives an idea of the performance of the method. The model allowing the calculation of h{sub sf} is developed, it is a wide range model. The second chapter ends with the presentation of the model allowing the computing of the effective conductivity of fuel rods. A comparison between results given by this new method and other numeric calculations or experimental data coming from benchmarks is presented in the third chapter. This chapter ends with the simulation of a reactor core in accidental situation, 2 cases are presented: with and without the presence of water steam. (A.C.)

  9. Direct torque control of an asynchronous machine: observation structures: application to multi-machine/multi-converter systems; Commande directe en couple d'une machine asynchrone: structures d'observations: application aux systemes multimachines-multiconvertisseurs

    Energy Technology Data Exchange (ETDEWEB)

    Belhadj, J.

    2001-07-15

    The aim of this work is the development of an observation structure of the direct torque control (DTC) variables of an asynchronous machine. This structure has to solve the dilemma between its robustness and a minimum calculation time. The control law obtained will be used for the control of multi-machine/multi-converter systems. The new control laws based on direct stator flux control and electromagnetic torque control are studied first, in particular the DTC and the principles of flux and torque adjustment and the associated switching logic. Then, three observation structures are developed: the full order state observer, the sliding mode observer, and the decoupled observer. A comparative study between these three structures and the classical estimator shows that the decoupled observer is an interesting structure which answers the problem of very low-speed operation. In the case of the multi-machine application, two systems are studied: the single inverter/dual-machine system and the dual-inverter/dual-machine system. The control is performed with the DTC and the vectorial control. The DTC gives interesting results for the control of multi-machine systems. In the last part, an architecture is defined for the mono- and multi-machine validation. It consists in a pseudo-experimental validation of the control law associated to the observation structure developed. This validation is performed with a mixed analog/numerical simulation. (J.S.)

  10. Macroscopic models for single-phase flows in fractured porous medium: application to well tests; Modeles macroscopiques pour les ecoulements monophasiques en milieu poreux fracture: application aux tests de puits

    Energy Technology Data Exchange (ETDEWEB)

    Landereau, P.

    2000-12-01

    We consider pressure diffusion in fractured media, with application to well test interpretation. Using the volume averaging theory of Quintard and Whitaker, the local problem is replaced by a double-porosity large scale description. The parameters of the latter may be computed solving small scale closure problems on a representative volume. Using suitable numerical methods, we have performed a systematic study of these parameters as a function of the topology of the fracture network and matrix to fracture permeability contrast. We find that the matrix permeability plays a significant role near a percolation threshold. Next, we studied the exchange coefficient parameter, by unifying the different definitions of the literature in a single framework using a Fourier analysis. Finally, we applied our technique to well-test interpretation in fractured media by comparing large scale solutions to high resolution direct simulations. We find that at short time scale, very fine grid blocks are needed to get good accuracy. In that case, a good agreement is observed between large scale averaged results and reference simulations. (author)

  11. Cryo magnetic separation adaptation to environment technologies: application to industrial effluents; Adaptation de la separation cryomagnetique aux technologies de l`environnement: application a l`epuration d`effluents liquides industriels

    Energy Technology Data Exchange (ETDEWEB)

    Bureau, V.

    1993-12-20

    Cryomagnetic separation adaptation to environment technologies application to industrial liquid effluents. The performance, obtained by superconducting high filed - high gradient magnetic separation, permitted to foresee the magnetic treatment of heavy metals in rinse waters, derived from the surface finishing industry. The paramagnetic ions, precipitated in basic media as hydroxides, present a very hydrated amorphous structure, which masks their subjacent magnetic properties. Coprecipitation of a `magnetic carrier`, jointly with the heavy metals, has been studied: ferric chloride forms in basic media, an hydrated iron oxide. Its structure is of the goethite type, and it stabilizes as hematite. The magnetic susceptibility of the obtained product is still weak and its crystalline structure is not enough affirmative to utilize magnetic filtration with efficiency. Mixture of ferrous sulphate and ferric chloride forms, in a basic media, an hydrated magnetite. Initial ideal ratio between divalent iron and trivalent iron, varies between 0,5 and 1,2. This mixture, coprecipitated with the heavy metals, permits to optimize the magnetic cleaning of the fluids in a high field - high gradient filter. (author)

  12. Application of the simplified J-estimation scheme Aramis to mismatching welds in CCP; Application du concept d`integrale J dans l`outil Aramis aux effets de mismatch sur des eprouvettes CCP

    Energy Technology Data Exchange (ETDEWEB)

    Eripret, C.; Franco, C.; Gilles, P.

    1995-12-31

    The J-based criteria give reasonable predictions of the failure behaviour of ductile cracked metallic structures, even if the material characterization may be sensitive to the size of the specimens. However in cracked welds, this phenomenon due to stress triaxiality effects could be enhanced. Furthermore, the application of conventional methods of toughness measurement (ESIS or ASTM standard) have evidenced a strong influence of the portion of the weld metal in the specimen. Several authors have shown the inadequacy of the simplified J-estimation methods developed for homogeneous materials. These heterogeneity effects mainly related to the mismatch ratio (ratio of weld metal yield strength upon base metal yield strength) as well as to the geometrical parameter h/W-a (weld width upon ligament size). In order to make decisive progress in this field, the Atomic Energy Commission (CEA), the PWR manufacturer FRAMATOME, and the French utility (EDF) have launched a large research program on cracked piping welds behaviour. As part of this program, a new J-estimation scheme, so called ARAMIS, has been developed to account for the influence of both materials, i.e. base metal and weld metal, on the structural resistance of cracked welds. It has been shown that, when the mismatch is high, and when the ligament size is small compared to the weld width, a classical J-based method using the softer material properties is very conservative. On the opposite the ARAMIS method provides a good estimate of J, because it predicts pretty well the shift of the cracked weld limit load, due to the presence of the weld. the influence of geometrical parameters such as crack size, weld width, or specimen length is property accounted for. (authors). 23 refs., 8 figs., 1 tab., 1 appendix.

  13. Application of neural networks to measurement methods based on radiation interactions with matter; Application des reseaux de neurones aux methodes de mesure basees sur l'interaction rayonnement matiere

    Energy Technology Data Exchange (ETDEWEB)

    Pilato, V

    1999-07-01

    The possibility of improving by neuronal techniques the preparation and interpretation of nuclear measurements was investigated. A general methodology was developed and applied to various problems in this field. Whatever the problem to be treated, to solve it comes to determine the relation which binds the inputs to the outputs. Neural networks based on supervised training, like the multilayer Perceptron, have the capability to calculate any relation between a set of input and output data. On the other hand, the training phase is often a long and delicate operation whose difficulties grow with the size of the network:it is thus interesting to reduce it by introducing knowledge a priori and/or by reducing the number of inputs in order to extract the relevant information. If the correlations between the inputs are linear, the Principal Components Analysis (PCA) and its neuronal equivalents make it possible to obtain by orthogonal projection a reduced number of input components while preserving the maximum of initial information. If the correlations are nonlinear, the Curvilinear Components Analysis (CCA) allows, by a unsupervised training, to carry out a nonlinear projection of the inputs in a space of reduced size. Besides, it is noticed that when the dimension of the input space is equal to the intrinsic dimension of the problem, this last is practically solved by CCA. We propose a general method which consists in characterizing as well as possible the problem by its inputs and then to extract and classify the information contained in those by projection in a space of reduced size. Association between the projected data and the problem outputs is then carried out by a supervised training network. Certain results having to be provided with their associated uncertainty, a statistical method based on the bootstrap algorithm is proposed. Potential applications other that those treated are considered. (author)

  14. Global dynamics of shaft lines of turbo-machineries coupled to surrounding fluids: application to the case of fluid sheets; Dynamique globale des lignes d'arbres de turbomachines couplees aux fluides environnants: application au cas des lames fluides

    Energy Technology Data Exchange (ETDEWEB)

    Lornage, D.

    2001-12-15

    Shaft lines of turbo-machineries have to stand increasing reliability, efficiency and safety requirements. A precise modeling of the rotating parts with all possible coupling has become necessary. In this context, this work aims to develop a global modeling of rotating wheel/shaft system inside a surrounding fluid in order to foresee its dynamical behaviour. The use and advantage of Eulerian, Lagrangian and mixed (arbitrary Lagrangian Eulerian - ALE) formulations is recalled first. A bibliographic synthesis of the classical techniques used in structure mechanics and of coupling techniques for rotating machines is presented. The coupling technique retained is presented. It uses fluid and structure models independently developed and validated. The structure domain is discretized by the finite-element method. The fluid domain is discretized by the finite-difference method taking into consideration the hypotheses linked with thin films. A modal base projection combined with a mesh at the fluid-structure interface allows an efficient, adaptable and evolutive coupling. Finally, the method is applied to 3 test-cases. The first two ones comprise a shaft/disc system coupled to a fluid sheet between the disc and the casing and to an hydrodynamic bearing. Both cases allow a first validation of the coupling method. The third case aims to study a structure closer to a real system made of a shaft and a wheel coupled to a fluid sheet between a flange and a casing. These three applications allow to show the trends linked with the fluid effects and the coupling between the flexible sub-parts of the structure. (J.S.)

  15. Introduction aux études historiques

    OpenAIRE

    Langlois, Charles-Victor; Seignobos, Charles; Noiriel, Gérard

    2014-01-01

    L’Introduction aux études historiques constitue le texte de référence de ce qu’on a appelé « l’école méthodique historique » française. Ce manuel cherche à définir les règles de la méthode historique afin de contribuer à asseoir la scientificité d’une discipline, l’histoire, dans le contexte de sa professionnalisation universitaire. Le texte affirme le primat des archives comme preuves et sources du récit historique, et revient sur les différentes étapes du travail sur archives, de la localis...

  16. Near infrared thermography by CCD cameras and application to first wall components of Tore Supra tokamak; Thermographie proche infrarouge par cameras CCD et application aux composants de premiere paroi du tokamak Tore Supra

    Energy Technology Data Exchange (ETDEWEB)

    Moreau, F.

    1996-06-07

    In the Tokamak TORE-SUPRA, the plasma facing components absorbs and evacuate (active cooling) high power fluxes (up to 10 MW/m{sup 2}). Their thermal behavior study is essential for the success of controlled thermonuclear fusion line. The first part is devoted to the study of power deposition on the TORE-SUPRA actively cooled limiters. A model of power deposition on one of the limiters is developed. It takes into account the magnetic topology and a description of the plasma edge. The model is validated with experimental calorimetric data obtained during a series of shots. This will allow to compare the surface temperature measurements with the predicted ones. The main purpose of this thesis was to evaluate and develop a new temperature measurement system. It works in the near infrared range (890 nm) and is designed to complete the existing thermographic diagnostic of TORE-SUPRA. By using the radiation laws (for a blackbody and the plasma) and the laboratory calibration one can estimate the surface temperature of the observed object. We evaluate the performances and limits of such a device in the harsh conditions encountered in a Tokamak environment. On the one hand, in a quasi ideal situation, this analysis shows that the range of measurements is 600 deg. C to 2500 deg. C. On the other hand, when one takes into account of the plasma radiation (with an averaged central plasma density of 6.10{sup 19} m{sup -3}), we find that the minimum surface temperature rise to 900 deg. C instead of 700 deg. C. In the near future, according to the development of IR-CCD cameras working in the near infrared range up to 2 micrometers, we will be able to keep the good spatial resolution with an improved lower limit for the temperature down to 150 deg. C. The last section deals with a number of computer tools to process the images obtained from experiments on TORE-SUPRA. A pattern recognition application was developed to detect a complex plasma iso-intensity structure. 87 refs.

  17. Empirical Calibration for Dolomite Stoichiometry Calculation: Application on Triassic Muschelkalk- Lettenkohle Carbonates (French Jura Calibration empirique pour le calcul de la stoechiométrie de la dolomite : application aux carbonates triasiques du Muschelkalk-Lettenkohle (Jura français

    Directory of Open Access Journals (Sweden)

    Turpin M.

    2012-02-01

    Full Text Available This study concerns an approach for dolomite quantification and stoichiometry calculation by using X-ray diffractometry coupled with cell and Rietveld refinements and equipped with a newly substantial database of dolomite composition. A greater accuracy and precision are obtained for quantifying dolomite as well as other mineral phases and calculating dolomite stoichiometry compared to the classical “Lumsden line” and previous methods. The applicability of this approach is verified on dolomite reference material (Eugui and on Triassic (Upper Muschelkalk-Lettenkohle carbonates from the French Jura. The approach shown here is applicable to bulk dolostones as well as to specific dolomite cements and was combined with petrographical and isotopic analyses. Upper Muschelkalk dolomites were formed during burial dolomitization under fluids characterized by increased temperature and variable isotopic composition through burial. This is clear from their Ca content in dolomites which gradually approaches an ideal stoichiometry (from 53.16% to 51.19% through increasing dolomitization. Lettenkohle dolostones consist of near-ideal stoichiometric (51.06%Ca and well-ordered dolomites associated with anhydrite relicts. They originated through both sabkha and burial dolomitization. This contribution gives an improved method for the characterization of different dolomite types and their distinct traits in sedimentary rocks, which allows a better evaluation of their reservoir potential. Cette étude propose une approche pour la quantification de la dolomite et le calcul de sa stoechiométrie grâce à l’utilisation de la diffraction des rayons X couplée aux affinements de maille et de Rietveld et complétée par de nombreuses données issues de la littérature. Elle permet d’obtenir une meilleure justesse et précision pour la quantification de la dolomite (et des autres phases minérales ainsi que pour le calcul de sa stoechiométrie par rapport à l

  18. Development of hydrogen market: the outlook for demand, wing energy production, mass storage and distribution to vehicles in the regions; Developpement des marches de l'hydrogene demande prospective dans l'industrie, production par energie eolienne, stockage massif et distribution aux vehicules en region

    Energy Technology Data Exchange (ETDEWEB)

    Le Duigou, A. [CEA Saclay, DEN/DANS/I-Tese, 91 - Gif-sur-Yvette (France); Quemere, M.M. [EDF R and D, 77 - Moret-Sur- Loing (France); Marion, P.; Decarre, S. [IFP Energies nouvelles, 92 - Rueil-Malmaison (France); Sinegre, L.; Nadau, L.; Pierre, H. [GDF SUEZ, DRI, 93 - La Plaine Saint Denis (France); Menanteau, Ph. [LEPII, Universite de Grenoble - CNRS, 38 (France); Rastetter, A. [ALPHEA, EURODEV Center, 57 - Forbach (France); Cuni, A.; Barbier, F. [Air Liquide, 75 - Paris (France); Mulard, Ph. [Total, La Defense, Raffige Marketing, 92 - Courbevoie (France); Alleau, Th. [AFH2, 75 - Paris (France); Antoine, L. [ADEME, Agence de l' Environnement et de la Maitrise de l' Energie, 75 - Paris (France)

    2011-03-15

    The HyFrance3 project has provided a national framework for reflection, debate and strategic exchange between major public and industrial research players, namely for their hydrogen technology arms in France (Air Liquide, Total Refining and Marketing, EDF R and D, GDF SUEZ, CNRS-LEPII Energies Nouvelles, AFH2, ALPHEA, ADEME (co-financing and partner) and the CEA (coordinator)). This project focuses on studying the landscape, trends and economic competitiveness of some links in the hydrogen chain, for industrial and energy applications, over a period referred to as 'short term' (2020-2030). Four study subjects were tackled: the prospective demand for hydrogen in industry (analysis of the current situation and outlook for 2030, in particular for refining based on two scenarios on mobility), production of hydrogen for transport uses from wind-produced electricity, mass storage that would have to be set up in the Rhone Alpes and PACA regions, to balance supply that is subject to deliberate (maintenance) or involuntary interruptions, and the distribution of hydrogen in the region, for automobile use (gas station network in the Rhone Alpes and PACA regions) by 2050 (with end period all-in costs between 0.4 eur/kg and 0.6 eur/kg, as a function of the price of energy and the distance from the storage site). (authors)

  19. L'analyse in-situ par fluorescence X : une méthode adaptée à l'estimation de minéralisations en place : application aux minéralisations zincifères

    OpenAIRE

    Eteradossi, Olivier

    1985-01-01

    La possibilité d'utiliser un spectromètre XRF portable pour décrire et estimer une minéralisation avant abattage est étudiée en laboratoire puis sur des ces pratiques de prospection et d'exploitation. La détermination de le géométrie et l'estimation de la teneur d'un volume en place sont des processus indispensables à la bonne marche d'une exploitation minière. Ces informatlons, qui permettent de mieux gérer l'exploitation, soIt en engageant peu de frais de productIon pour des volumes non ren...

  20. Aux limites de la physique les paradoxes quantiques

    CERN Document Server

    Rothen, François

    2012-01-01

    Dans l’esprit des pères fondateurs de la science moderne, les phénomènes matériels se déroulent selon un schéma unique. La cause précède nécessairement l’effet, et la connaissance de l’effet permet de remonter à la cause. Sur la scène de la nature, le hasard n’occupe qu’une place congrue. On ne fait appel à lui que pour pallier notre ignorance. Dans les années 1920, la révolution quantique bouleverse ce cadre rigide. Elle accorde une place de choix au hasard, si malmené jusqu’alors, puis elle met en scène une constellation de phénomènes inexplicables aux yeux de la science dite classique. Après une courte introduction historique, l’auteur met ses lecteurs au contact de certains de ces phénomènes si contraires à l’intuition. Refusant l’aide du langage mathématique, il les convie à pénétrer dans un monde quantique qui déconcerte le novice avant de l’éblouir par sa nouveauté et sa cohérence. Un accent particulier est mis sur une application nouvelle de la physiqu...

  1. Vers un « atlas vivant » : Utilisation des systèmes d'information géographique en géographie industrielle. Application aux industries lorraines

    Directory of Open Access Journals (Sweden)

    Sadia Cheriguene

    1999-06-01

    Full Text Available Depuis les années soixante, la Lorraine connaît de profondes mutations : ses principales industries sont en déclin, voire même en disparition. Le renouvellement du tissu industriel est en partie dû à l’émergence des industries de haute technologie, sous forme de petites et moyennes entreprises, qui ne s’implantent que rarement sur les sites des anciennes industries.Vu sa position stratégique au cœur de l’Europe, et vu la qualité de ses voies de communication, un grand nombre d’investisseurs français et étrangers utilise la région comme base de lancement de leur production sur le marché européen.Pour tirer profit de tous les atouts de la Lorraine, il faut faire un état des lieux, c’est-à-dire collecter les informations, les classer, les traiter et les mettre en relation entre elles afin d’en extraire les éléments nécessaires à une prise de décision adéquate des organismes concernés.Pour ce faire, il est important de mettre ne place un " système d’information géographique " qui centralisera toutes les informations sur les établissements industriels de dix salariés et plus.

  2. Marketers as Innovators: how ethnic marketing revisits ethnicity Marketing ethnique et innovation aux États-Unis

    Directory of Open Access Journals (Sweden)

    Marie-Christine Pauwels

    2009-10-01

    Full Text Available L’innovation aux États-Unis est ici vue sous un angle social et culturel. Il ne s’agit plus d’étudier l’innovation technologique, mais l’innovation en matière de produit. L’article aborde la création de valeur à travers la variable ethnique dans le domaine de la vente, du marketing et de la publicité. Les nouvelles tendances en matière d’ethno-marketing sont analysées, en particulier la manière dont les professionnels utilisent la notion d’ethnicité pour vendre des produits de consommation courante à un marché de consommateurs de plus en plus exigeants, soit en ayant recours à une segmentation de ces consommateurs en micro-marchés toujours plus étroits, soit en privilégiant un marketing multi- ou trans-culturel.

  3. Development and radiotherapeutic application of 211At-labeled radiopharmaceuticals. Progress report, March 1, 1981-February 28, 1982

    International Nuclear Information System (INIS)

    This project is concerned with developing the potential of alpha-emitting radionuclides as agents for radiotherapy. Alpha-emitters seem ideally suited for his application because their high linear energy transfer and short range permit the deposition of considerable energy in a very small volume of tissue. Unlike the beta particles of 131I which have a range of about 1 to 2 mm in tissue, 5 to 7 MeV alpha particles would traverse only a few cell diameters. Among the available alpha-emitters, 211At appears most promising for therapeutic applications because, (1) it has some chemical similarities to iodine, an element that can readily be incorporated into numerous proteins and peptides, (2) it has a half-life that is long enough to permit chemical manipulation yet short enough to minimize destruction of healthy cells due to degradation of the label over time, (3) it can be produced conveniently using a cyclotron, and (4) alpha emission is associated with 100% of its decays with no accompanying beta emission. In the past year the evaluation of an astatine-tellurium colloid as an agent for the destruction of malignant ascites has been completed. The therapeutic efficacy of 211At-tellurium colloid has been compared with that of several beta-emitting radiocolloids. Studies on the application of monoclonal antibodies as carriers for selective delineation and destruction of malignant cell populations have also been initiated

  4. COMPOTISIONS OF NATIONAL MARCH

    OpenAIRE

    Sağer, Turan

    2010-01-01

    Natıonal marches began to appear in the 18 th century. İn which capitalism developed, national feelings awakend and the life of the nation started. The words of a national marches is the mirror of the national character in the period when it is written. For Turks, different marches were composed for different Sultans until 1921. But there was no a national marches. The first national marches initiative was made in 1909 in Sultan Reşat’s period, but it failed. After the poem written by Mehmet ...

  5. La communication publicitaire face aux territoires nationaux

    OpenAIRE

    Koukoutsaki-Monnier, Angeliki

    2013-01-01

    Cet article, fondé sur une expérience pédagogique au sein d’une école parisienne de commerce, propose une comparaison des pages d’accueil des sites Internet américain, anglais et japonais de la marque KFC (Kentucky Fried Chicken), chaîne américaine de restauration rapide. En s’appuyant sur un modèle anthropologique et à l’aide d’outils sémiologiques, il présente les processus de variation qu’utilise la marque sur Internet, afin de mieux cibler les cultures locales : une démarche rationnelle e...

  6. Oxydes transparents conducteurs et convertisseurs de photons pour des applications photovoltaïques : les cas de l'oxyde de zinc et de l'oxyde de cérium dopés aux terres rares

    OpenAIRE

    Balestrieri, Matteo

    2014-01-01

    The objective of this thesis was to investigate the photon converting properties of rare earths (RE) ions embedded in transparent oxide hosts in view of potential application on silicon solar cells. In particular, the goal was to functionalize thin films that are already used in solar cells such as anti-Reflection coatings or transparent conductive oxides.Two host materials (ZnO and CeO2) have been selected, which are compatible with silicon solar cells.This work shows that RE-Doped transpare...

  7. Coal-fueled diesel system for stationary power applications -- Technology development. Final report, March 1988--June 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-10-01

    Morgantown Energy Technology Center, Cooper-Bessemer and Arthur D. Little have developed the technology to enable coal-water slurry to be utilized in large-bore, medium-speed diesel engines. The target application is modular power generation in the 10 to 100 MW size, with each plant using between two and eight engines. Such systems are expected to be economically attractive in the non-utility generation market after 2000, when oil and natural gas prices are expected to escalate rapidly compared to the price of coal. During this development program, over 1,000 hours of prototype engine operation have been achieved on coal-water slurry (CWS), including over 100 hours operation of a six-cylinder, 1.8 MW engine with an integrated emissions control system. Arthur D. Little, Inc., managed the coal-fueled diesel development, with Cooper-Bessemer as the principal subcontractor responsible for the engine design and testing. Several key technical advances which enable the viability of the coal-fueled diesel engine were made under this program. Principal among them are the development and demonstration of (1) durable injection nozzles; (2) an integrated emissions control system; ad (3) low-cost clean coal slurry formulations optimized for the engine. Significant advances in all subsystem designs were made to develop the full-scale Cooper-Bessemer coal engine components in preparation for a 100-hour proof-of-concept test of an integrated system, including emissions controls. The Clean Coal Diesel power plant of the future will provide a cost-competitive, low-emissions, modular, coal-based power generation option to the non-utility generation, small utility, independent power producer, and cogeneration markets. Combined cycle efficiencies will be approximately 48% (lower heating value basis) and installed cost will be approximately $1,300/kW (1992 dollars).

  8. The application of the Contingent Valuation method towards the assessment of the impacts emerged from the March 2006 floods in the Evros River. An experts-based survey.

    Science.gov (United States)

    Markantonis, V.; Bithas, K.

    2009-04-01

    In March 2006 Greece was struck by a severe flooding, which caused significant damages in the Prefecture of Evros, on the Eastern border of Greece. 250 million m² of farmland was flooded causing severe damages to agriculture, transport and water supply networks. Total direct damages are estimated at € 372 million. The negative effect on economic activity caused by the floods, considered the worst over the last 50 years, took place in an area that had already been severely affected by floods in 2005. Apart from the direct damages critical were also the indirect impacts on the environmental and the social level. The need for economic analysis concerning the design and implementation of efficient flood management policies is well emphasized in the natural hazards' policies. Within this framework, the present paper is analyzing the application of stated preferences valuation techniques for the assessment of the damages caused in the Prefecture of Evros by the severe floods of March 2006. The objective of this paper is to define the role of economic valuation techniques in assisting the design of efficient and sustainable policies for flood management. More specific, the Contingent Valuation (CV) method is applied in order to valuate the impacts of the March 2006 floods, including the environmental impacts as far as concerns the soil, the biodiversity and the aesthetic environment of the flooded areas. The paper begins with a discussion of the theoretical economic framework, and particularly, the contingent valuation method framework that can be used to evaluate flood impacts. Understanding public preferences for complex environmental policy changes, such as flood impacts, is a preeminent challenge for environmental economists and other social scientists. Information issues are central to the design and application of the survey-based contingent valuation (CV) method for valuing environmental goods. While content is under the control of the analyst, how this

  9. Application of native knowledge in EIA: Inuit, eiders and Hudson Bay oil. Les connaissances des autochtones appliquees aux etudes d'impact environnemental: Les Inuit, les eiders et le petrole de la baie d'Hudson

    Energy Technology Data Exchange (ETDEWEB)

    Nakashima, D.J.

    1990-09-01

    Environmental baseline data, essential for environmental impact assessment of petroleum development, is scarce or nonexistent for much of the Arctic. It is proposed that environmental assessment in Arctic regions can benefit substantially from Inuit environmental knowledge, in the form of a formal integration of Inuit expertise into the environmental assessment process. To assess the soundness of this proposition, environmental data from Inuit of 3 communities in southeastern Hudson Bay are examined. These data pertain to the biogeography and ecology of the Hudson Bay eider (Somateria mollissima sedentaria), a large seaduck of interest because of its extreme vulnerability to oil pollution. Information on this bird was collected by means of semi-directive interviews with Inuit hunters. This information reveals an extensive knowledge of the dramatic seasonal changes in the distribution and habitat use of the eider, and their winter mortality. The applications of this knowledge to environmental impact assessment is discussed. 16 refs., 5 figs.

  10. PREVISION QUANTITATIVE DES PRECIPITATIONS : ADAPTATION PROBABILISTE PAR RECHERCHE D'ANALOGUES.Utilisation des Réanalyses NCEP / NCAR et application aux précipitations du Sud-Est de la France

    OpenAIRE

    Bontron, Guillaume

    2004-01-01

    Ce mémoire étudie l'application du principe d'analogie à la prévision et à la simulation des précipitations. A partir de la caractérisation d'une situation météorologique cible, cette approche consiste à rechercher, dans une archive météorologique, les situations passées similaires. Les précipitations observées lors de ces situations analogues permettent ensuite de donner une estimation probabiliste des précipitations attendues pour la situation cible.Après avoir défini les critères et les sc...

  11. Magnetotransport in CeCu6-xAux

    International Nuclear Information System (INIS)

    We report on a comparative study of the low-temperature magnetoresistance ρxx(B) and Hall resistance ρxy(B) of CeCu6-xAux for 0=xx(B), and of the anomalous Hall effect and bandstructure effects of the heavy-quasiparticle bands affecting ρxy(B)

  12. Répondre aux suds : imaginaires et défis géopolitiques aux frontières du nord : cas du maroc et du mexique.

    Directory of Open Access Journals (Sweden)

    Philippe Sierra

    2010-11-01

    Full Text Available Maroc et Mexique sont deux Etats qui ont construit depuis une quinzaine d’années un nouveau discours et de nouvelles politiques pour valoriser leur proximité au « Nord ». Alena et Mexamérique d’un côté, quasi intégration au marché européen et péninsule tingitane de l’autre, sont devenues des lignes majeures des discours gouvernementaux. Cette valorisation des nords a provoqué une nouvelle vision des territoires nationaux, dans laquelle il faut répondre aux inquiétudes des suds, éloignés et sources de problèmes géopolitique tant au Mexique (la rébellion néo-zapatiste au Chiapas qu’au Maroc (le Sahara occidental. Cet article tente de montrer comment à travers les nouveaux plans de développement mis en place par les Etats pour répondre différemment à leurs inquiétudes, de nouvelles représentations géopolitiques révélatrices des « imaginaires du sud » se mettent en place auxquelles répondent des populations en soif d’identité.

  13. Monte Carlo simulations for thermodynamical properties calculations of plasmas at thermodynamical equilibrium. Applications to opacity and equation of state calculations; Apport d'un code de simulation Monte Carlo pour l'etude des proprietes thermodynamiques d'un plasma a l'equilibre et application au calcul de l'elargissement des profils de raies ioniques emises dans les plasmas denses, aux opacites spectrales et aux equations d'etat de systemes fluides

    Energy Technology Data Exchange (ETDEWEB)

    Gilles, D

    2005-07-01

    This report is devoted to illustrate the power of a Monte Carlo (MC) simulation code to study the thermodynamical properties of a plasma, composed of classical point particles at thermodynamical equilibrium. Such simulations can help us to manage successfully the challenge of taking into account 'exactly' all classical correlations between particles due to density effects, unlike analytical or semi-analytical approaches, often restricted to low dense plasmas. MC simulations results allow to cover, for laser or astrophysical applications, a wide range of thermodynamical conditions from more dense (and correlated) to less dense ones (where potentials are long ranged type). Therefore Yukawa potentials, with a Thomas-Fermi temperature- and density-dependent screening length, are used to describe the effective ion-ion potentials. In this report we present two MC codes ('PDE' and 'PUCE') and applications performed with these codes in different fields (spectroscopy, opacity, equation of state). Some examples of them are discussed and illustrated at the end of the report. (author)

  14. Patient doses in medical imaging including interventional Radiology International actions: ICRP recommendations and practices in Spain; Doses delivrees aux patients en imagerie medicale: recommandations de la CIPR et leur application en Espagne

    Energy Technology Data Exchange (ETDEWEB)

    Vano, Eliseo [Departement de radiologie, Univ. Complutense, Avenida Complutense, 28040 Madrid (Spain); Service de physique medicale, Hopital Universitaire San Carlos (Spain)

    2011-07-15

    The ICRP recommends that justification and optimization criteria be applied to medical exposures and that diagnostic reference levels (DRLs) be used in medical imaging including interventional radiology. For fluoroscopic guided interventional procedures, the relative 'complexity' of the procedure should be taken into account when establishing DRLs. The ICRP recommendations on patient dose management for different imaging modalities are summarized, especially for interventional procedures, digital radiology and computed tomography. Reference is also being made to the new publication on 'Education and Training in Radiological Protection for Diagnostic and Interventional Procedures' and the working documents on 'Radiological Protection in Paediatric Diagnostic and Interventional Radiology', 'Avoiding adverse radiation effects to doctors and patients in fluoroscopic guided procedures - practical guidelines' and 'Patient and staff Radiation Protection in Cardiology'. The second part of the paper deals with the application of the ICRP recommendations and the European Directive on Medical Exposures in medical imaging, in Spain. The requirements on RP training for medical professionals are described, including the mandatory 'second level' of training in RP for interventional radiology. The support and involvement of the medical physics experts in medical imaging are also discussed, together with the role of the Health Authority and the Nuclear Regulatory Authority. In Spain, a quality assurance program, including patient dose measurements, has been mandatory since 1999 and some hospitals have promoted pilot experiences to collect and process patient dose values in real time. As a conclusion and considering the global demand for 'safer medicine', it is suggested that the management of patient doses in imaging come first on the agenda, that automatic registration of patient doses in the X-ray systems be

  15. Safety Training: Sensibilisation aux gestes et postures de travail

    CERN Multimedia

    Laetitia Laddada

    2004-01-01

    If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. Nous vous proposons un nouveau cours de sécurité lié aux manutentions manuelles (durée 1 jour) : Sensibilisation aux gestes et postures de travail. Si vous êtes amené à manipuler régulièrement des charges lourdes ou volumineuses, cette formation peut vous aider à prévenir les lésions musculaires ou dorsales. A l'issue de cette formation, vous serez capable d'adopter et d'appliquer les principes de base de sécurité physique et d'économie d'efforts dans les manipulations...

  16. From chemical mapping to pressure temperature deformation micro-cartography: mineralogical evolution and mass transport in thermo-mechanic disequilibrium systems: application to meta-pelites and confinement nuclear waste materials; De l'imagerie chimique a la micro-cartographie Pression-Temperature-Deformation: evolution mineralogique et transport de matiere dans des systemes en desequilibre thermomecanique. Applications aux metapelites et aux materiaux de stockage de dechets radioactifs

    Energy Technology Data Exchange (ETDEWEB)

    Andrade, V. de

    2006-03-15

    The mineralogical composition of metamorphic rocks or industrial materials evolves when they are submitted to thermomechanical disequilibria, i.e. a spatial or temporal pressure and temperature evolution, or chemical disequilibria as variations in redox conditions, pH... For example, during low temperature metamorphic processes, rocks re-equilibrate only partially, and thus record locally thermodynamic equilibria increasing so the spatial chemical heterogeneities. Understanding the P-T evolution of such systems and deciphering modalities of their mineralogical transformation imply to recognize and characterize the size of these local 'paleo-equilibria', and so to have a spatial chemical information at least in 2 dimensions. In order to get this information, microprobe X-ray fluorescence maps have been used. Computer codes have been developed with Matlab to quantify these maps in view of thermo-barometric estimations. In this way, P-T maps of mineral crystallisation were produced using the multi-equilibria thermodynamic technique. Applications on two meta-pelites from the Sambagawa blue-schist belt (Japan) and from the Caledonian eclogitic zone in Spitsbergen, show that quantitative chemical maps are a powerful tool to retrieve the metamorphic history of rocks. From these chemical maps have been derived maps of P-T-time-redox-deformation that allow to characterize P-T conditions of minerals formation, and so, the P-T path of the sample, the oxidation state of iron in the chlorite phase. As a result, we underline the relation between deformation and crystallisation, and propose a relative chronology of minerals crystallisation and deformations. The Fe{sup 3+} content map in chlorite calculated by thermodynamic has also been validated by a {mu}-XANES mapping at the iron K-edge measured at the ESRF (ID24) using an innovative method. Another application relates to an experimental study of clay materials, main components of an analogical model of a nuclear

  17. Modélisation du procédé de soudage hybride Arc / Laser par une approche level set application aux toles d'aciers de fortes épaisseurs A level-set approach for the modelling of hybrid arc/laser welding process application for high thickness steel sheets joining

    OpenAIRE

    Desmaison Olivier; Bellet Michel; Guillemot Gildas

    2013-01-01

    Le procédé de soudage hybride Arc/Laser est une solution aux assemblages difficiles de tôles de fortes épaisseurs. Ce procédé innovant associe deux sources de chaleur : un arc électrique produit par une torche MIG et une source laser placée en amont. Ce couplage améliore le rendement du procédé, la qualité du cordon et les déformations finales. La modélisation de ce procédé par une approche Level Set permet une prédiction du développement du cordon et du champ de température associé. La simul...

  18. Modélisation du procédé de soudage hybride Arc / Laser par une approche level set application aux toles d'aciers de fortes épaisseurs A level-set approach for the modelling of hybrid arc/laser welding process application for high thickness steel sheets joining

    Directory of Open Access Journals (Sweden)

    Desmaison Olivier

    2013-11-01

    Full Text Available Le procédé de soudage hybride Arc/Laser est une solution aux assemblages difficiles de tôles de fortes épaisseurs. Ce procédé innovant associe deux sources de chaleur : un arc électrique produit par une torche MIG et une source laser placée en amont. Ce couplage améliore le rendement du procédé, la qualité du cordon et les déformations finales. La modélisation de ce procédé par une approche Level Set permet une prédiction du développement du cordon et du champ de température associé. La simulation du soudage multi-passes d'une nuance d'acier 18MnNiMo5 est présentée ici et les résultats sont comparés aux observations expérimentales. The hybrid arc/laser welding process has been developed in order to overcome the difficulties encountered for joining high thickness steel sheets. This innovative process gathers two heat sources: an arc source developed by a MIG torch and a pre-located laser source. This coupling improves the efficiency of the process, the weld bead quality and the final deformations. The Level-Set approach for the modelling of this process enables the prediction of the weld bead development and the temperature field evolution. The simulation of the multi-passes welding of a 18MnNiMo5 steel grade is detailed and the results are compared to the experimental observations.

  19. Conditions de contrat applicables aux travaux de construction

    CERN Document Server

    1999-01-01

    Conditions of Contract for Construction, which are recommended for building or engineering works designed by the Employer or by his representative, the Engineer. Under the usual arrangements for this type of contract, the Contractor constructs the works in accordance with a design provided by the Employer. However, the works may include some elements of Contractor-designed civil, mechanical, electrical and/or construction works.

  20. Soja MON 87701 Résistant Aux Insectes

    OpenAIRE

    Canada, Publié par la Direction des aliments de Santé

    2014-01-01

    Santé Canada a avisé Monsanto Canada Inc. qu’il ne s’oppose pas à l’utilisation alimentaire du soja MON 87701 résistant aux insectes. Le Ministère a réalisé une évaluation approfondie de cette lignée de soja conformément aux Lignes directrices sur l’évaluation de l’innocuité des aliments nouveaux. Ces lignes directrices sont fondées sur les principes admis internationalement de l’établissement de l’innocuité d’aliments comportant des caractères nouveaux. Le texte qu...

  1. Des arbres et des herbes aux marges du Sahara

    OpenAIRE

    Bernus, Edmond

    1992-01-01

    Le Sahara possède une végétation qui est d'autant plus précieuse pour ses habitants qu'elle est rare. Les herbes, prairies d'"éphémères" dans les zones aux pluies les plus aléatoires, ou vivaces et annuelles plus régulières, fournissent un fourrage très recherché. Dans les marges méridionales des herbes permettent des ramassages de graines qui donnent aux nomades des nourritures appréciées. Mil, sorgho et riz poussent à l'état spontané : les deux premiers ont été domestiqués dans cette région...

  2. Sensibilisation aux gestes et postures de travail - French version only

    CERN Multimedia

    2004-01-01

    Nous vous proposons un nouveau cours de sécurité lié aux manutentions manuelles (durée 1 jour) : Sensibilisation aux gestes et postures de travail. Si vous êtes amené à manipuler régulièrement des charges lourdes ou volumineuses, cette formation peut vous aider à prévenir les lésions musculaires ou dorsales. A l'issue de cette formation, vous serez capable d'adopter et d'appliquer les principes de base de sécurité physique et d'économie d'efforts dans les manipulations d'objets. Les cours sont pris en charge par la Commission de Sécurité. L'inscription EDH est obligatoire. Pour plus d'information, veuillez consulter les pages Formation & Développement (Groupe Sécurité)

  3. Développement d'une approche innovante de modélisation de la cinétique de décomposition thermique des matériaux solides en espaces confinés sous-ventilés. Application aux incendies en tunnel

    OpenAIRE

    Hermouet, Fabien

    2015-01-01

    Les incendies de tunnels sont des phénomènes violents, à l’évolution rapide qui engendrent la plupart du temps des dommages importants aux personnes et aux biens. La sécurité incendie dans les tunnels routiers est basée sur l’utilisation de modèles empiriques très simplifiés de description de l’évolution de la cinétique de développement de l’incendie. Ces modèles ne prennent cependant pas en compte le type de combustible impliqués dans le phénomène, tels que les polymères constitutifs des env...

  4. COMPOTISIONS OF NATIONAL MARCH

    Directory of Open Access Journals (Sweden)

    Turan SAĞER

    2010-06-01

    Full Text Available Natıonal marches began to appear in the 18 th century. İn which capitalism developed, national feelings awakend and the life of the nation started. The words of a national marches is the mirror of the national character in the period when it is written. For Turks, different marches were composed for different Sultans until 1921. But there was no a national marches. The first national marches initiative was made in 1909 in Sultan Reşat’s period, but it failed. After the poem written by Mehmet Akif Ersoy was accepted in T.B.M.M. in 1921, musical composition contest was announced. There were 24 compositions in the contest. The interest which was showed for poetry was not showed for compositions because of the war yesrs of the period. After that, a committee assembled in the Ministry of Education in 1924 declared Ali Rıfat Çağatay’s composition as the first composition, accepted it as the national marches and announced this event around the country. But, the other compositions which were in the contest were played and sung in the different parts of the country until 1930. In 1930, A. Rıfat Çağatay’s composition was cancelled and Osman Zeki Üngör’s composition was accepted as The national march.

  5. Introduction aux modèles espace état et au filtre de Kalman

    OpenAIRE

    Lemoine, Matthieu; Pelgrin, Florian

    2003-01-01

    Nous détaillons ici les principaux concepts et problèmes liés aux modèles espace-état, ainsi que leurs applications. Nous présentons d'abord ces modèles dans leur généralité. Ensuite, nous explicitons les algorithmes utilisés afin de procéder à l'estimation par le maximum de vraisemblance, c'est-à-dire fondamentalement le filtre de Kalman et l'algorithme EM. Nous considérons enfin quatre applications : les décompositions tendance-cycle, l'extraction d'indicateurs coïncidents d'activité, l'est...

  6. Modelisation de la diffusion sur les surfaces metalliques: De l'adatome aux processus de croissance

    Science.gov (United States)

    Boisvert, Ghyslain

    Cette these est consacree a l'etude des processus de diffusion en surface dans le but ultime de comprendre, et de modeliser, la croissance d'une couche mince. L'importance de bien mai triser la croissance est primordiale compte tenu de son role dans la miniaturisation des circuits electroniques. Nous etudions ici les surface des metaux nobles et de ceux de la fin de la serie de transition. Dans un premier temps, nous nous interessons a la diffusion d'un simple adatome sur une surface metallique. Nous avons, entre autres, mis en evidence l'apparition d'une correlation entre evenements successifs lorsque la temperature est comparable a la barriere de diffusion, i.e., la diffusion ne peut pas etre associee a une marche aleatoire. Nous proposons un modele phenomenologique simple qui reproduit bien les resultats des simulations. Ces calculs nous ont aussi permis de montrer que la diffusion obeit a la loi de Meyer-Neldel. Cette loi stipule que, pour un processus active, le prefacteur augmente exponentiellement avec la barriere. En plus, ce travail permet de clarifier l'origine physique de cette loi. En comparant les resultats dynamiques aux resultats statiques, on se rend compte que la barriere extraite des calculs dynamiques est essentiellement la meme que celle obtenue par une approche statique, beaucoup plus simple. On peut donc obtenir cette barriere a l'aide de methodes plus precises, i.e., ab initio, comme la theorie de la fonctionnelle de la densite, qui sont aussi malheureusement beaucoup plus lourdes. C'est ce que nous avons fait pour plusieurs systemes metalliques. Nos resultats avec cette derniere approche se comparent tres bien aux resultats experimentaux. Nous nous sommes attardes plus longuement a la surface (111) du platine. Cette surface regorge de particularites interessantes, comme la forme d'equilibre non-hexagonale des i lots et deux sites d'adsorption differents pour l'adatome. De plus, des calculs ab initio precedents n'ont pas reussi a confirmer la

  7. L’institutionnalisme de John Commons et les origines de l’État providence aux États-Unis

    Directory of Open Access Journals (Sweden)

    Isabel da Costa

    2010-12-01

    Full Text Available La politique officielle des États-Unis, soutenue par la pensée économique et juridique, était à l’origine le « laissez-faire » sur le marché et dans les relations de travail. Cet article analyse la construction d’un rôle légitime pour l’État dans la régulation sociale du marché du travail à travers l’ébauche de réglementations du travail et l’émergence de dispositifs de protection sociale aux États-Unis. Nous analyserons tout d’abord comment le mouvement progressiste a impulsé certaines réformes sociales établissant les prémisses d’une législation sociale ; nous nous attacherons ensuite à démontrer la contribution majeure de l’institutionnalisme de John Commons et de ses disciples de l’université du Wisconsin à la conception et au développement de l’État providence aux États-Unis.The official policy of the United States, backed by economic and legal thought, was originally “laissez-faire” on the market and in labor relations. This article analyzes the development of a legitimate role for the state in the social regulation of the labor market through the emergence of the early labor regulations and social protection schemes in the United States. We first analyze how the progressive movement brought about certain social reforms establishing the beginnings of social legislation; we will then focus on the major contribution of the institutionalism of John Commons and his followers from the University of Wisconsin to the design and the development of the welfare state in the United States.

  8. Rational Formulation of Alternative Fuels using QSPR Methods: Application to Jet Fuels Développement d’un outil d’aide à la formulation des carburants alternatifs utilisant des méthodes QSPR (Quantitative Structure Property Relationship: application aux carburéacteurs

    Directory of Open Access Journals (Sweden)

    Saldana D.A.

    2013-06-01

    éveloppement et l’application de méthodes QSPR (Quantitative Structure Property Relationship permettant de relier la structure aux propriétés d’une molécule. Les produits étudiés sont les hydrocarbures (normal et iso-paraffines, naphtènes, aromatiques, etc. et les oxygénés du type alcools et esters. Les propriétés ciblées sont celles figurant dans les spécifications carburants telles que le point d’éclair, l’indice de cétane, la masse volumique et la viscosité. Les modèles prédictifs des propriétés des corps purs ont été établis à partir de données expérimentales de référence provenant en grande partie de la littérature. L’utilité de tels modèles dans la sélection de composés d’intérêt peut être montrée par exemple pour trouver le meilleur compromis pour satisfaire les critères de tenue à froid et de masse volumique des paraffines. Ainsi, si la chaîne carbonée est trop longue alors le critère de tenue à froid risque de ne pas être satisfait. Il est alors nécessaire de favoriser la ramification ou d’ajouter des bases ayant une bonne tenue à froid comme certains naphtènes ou monoaromatiques alkylés. Cependant, cela entraîne bien souvent une masse volumique trop basse par rapport à la spécification. Là encore l’ajout de naphtènes ou de monoaromatiques alkylés issus de la biomasse peut être intéressant.

  9. PROGRAMME OF SEMINARS MARCH TO JUNE 2004

    CERN Multimedia

    Nathalie Dumeaux

    2004-01-01

    Situation : 09.03.2004 Dates Days Places Available* Bilingual seminars Communication Techniques-1 16, 17, 18 March 3 no Project Management 17, 18, 19 March 3 yes Introduction to Management 23, 24, 25 March 3 yes Communication Techniques-1 8, 9, 10 June 3 yes Quality Management 5, 6, 7 may 3 yes Introduction to Management - Follow-up 22, 23 June 1,5 yes Seminars in English Making Presentations 22, 23 March & 1 April 3 yes Stress Management 22, 23 April 2 yes Chairing or participating in meetings 11, 12, 13 May 3 yes *If you are interested in a seminar where there are no places available, please fill in an application form and we will contact you as soon as a new session is organised. MANAGEMENT & COMMUNICATION Nathalie Dumeaux tel. 781 44 management.communication@cern.ch

  10. Étude de marché pour le service Skeeble

    OpenAIRE

    Ben Sliman, Kevin; Ahr, Anthony

    2013-01-01

    L’entreprise xb83studio est une entreprise de développement d’applications qui a pour produit phare Skeeble. Ce service est un système de gestion de contenus. Il est accessible depuis internet. Il permet aux particuliers et aux entreprises de créer des applications pour Smartphone sous les systèmes d’exploitation Apple et Android. Il est convivial à utiliser et ne nécessite aucune connaissance particulière pour être utiliser. Monsieur Bertschy a pour objectif de vendre son service à environ 1...

  11. Algorithmes par decomposition de domaine et méthodes de discrétisation d'ordre elevé pour la résolution des systèmes d'équations aux dérivées partielles. Application aux problèmes issus de la mécanique des fluides et de l'électromagnétisme

    OpenAIRE

    Dolean, Victorita

    2009-01-01

    My main research topic is about developing new domain decomposition algorithms for the solution of systems of partial differential equations. This was mainly applied to fluid dynamics problems (as compressible Euler or Stokes equations) and electromagnetics (time-harmonic and time-domain first order system of Maxwell's equations). Since the solution of large linear systems is strongly related to the application of a discretization method, I was also interested in developing and analyzing the ...

  12. Sexe et pouvoir aux États-Unis

    OpenAIRE

    Mokhtar BEN BARKA

    2012-01-01

    Les adversaires politiques de Bill Clinton aiment à dire que l’Histoire se souviendra de lui plus à cause de ses mensonges et de sa sexualité débordante qu’en raison de son bilan. En vérité, les frasques sexuelles du président Clinton ne sont que la perpétuation d’une tradition qui remonte aux origines de la nation américaine. “Long before there was a United States of America”, écrit Shelley Ross, “there was sex, scandal, and corruption in American politics. In fact, some of the most notoriou...

  13. Application de la métabolomique à l’étude du lien entre les expositions environnementales aux pesticides pendant la grossesse et le développement de l’enfant : approches épidémiologique et toxicologique

    OpenAIRE

    Bonvallot, Nathalie

    2014-01-01

    Les expositions environnementales aux pesticides chez la femme enceinte sont une préoccupation de santé publique. L’association d’analyses métabolomiques par RMN chez l’Homme et l’animal a permis de tester l’utilité de cet outil dans l’étude des mélanges complexes. Les empreintes métaboliques proviennent des urines et du sang de cordon de plus de 300 femmes de la cohorte PELAGIE (Bretagne) et des urines, sang, foie et cerveaux de rates et de leurs fœtus exposés par voie orale durant la gestat...

  14. Multivariate long memory processes: applications to the EDF producer problematic in the context of the european electricity market liberalization; Modelisation longue memoire multivariee: applications aux problematiques du producteur d'EDF dans le cadre de la liberalisation du marche europeen de l'electricite

    Energy Technology Data Exchange (ETDEWEB)

    Diongue, A.K

    2005-10-15

    Certain crucial financial time series, such as the interconnected european electricity market spot prices, exhibit long memory, in the sense of slowly decaying correlations combined with heteroskedasticity and periodic or none cycles. In modeling such behavior, we consider on one hand, the k factor GIGARCH process and additionally propose two methods to address the related parameter estimation problem. In each method, we explore the asymptotic theory for estimation. Moreover, the asymptotic properties are validated and compared via Monte Carlo simulations. On the other hand, we introduce a new multivariate long memory generalized model (k-factor MVGARMA) in order to model interconnected european electricity market spot prices. We suggest a practical framework to address the parameter estimation problem. We investigate the analytical expressions of the least squares predictors for the two proposed models and their confidence intervals. To finish, we apply the two proposed models to the french and german electricity market spot prices and a comparison is made between their forecasting abilities. (author)

  15. Safety Training: Sensibilisation aux gestes et postures de travail

    CERN Multimedia

    Laetitia Laddada

    2004-01-01

    Nous vous proposons un nouveau cours de sécurité lié aux manutentions manuelles (durée 1 jour) : Sensibilisation aux gestes et postures de travail. Si vous êtes amené à manipuler régulièrement des charges lourdes ou volumineuses, cette formation peut vous aider à prévenir les lésions musculaires ou dorsales. A l'issue de cette formation, vous serez capable d'adopter et d'appliquer les principes de base de sécurité physique et d'économie d'efforts dans les manipulations d'objets. Les cours sont pris en charge par la Commission de Sécurité. L'inscription EDH est obligatoire. Pour plus d'information, veuillez consulter les pages Formation & Développement (Groupe Sécurité). FORMATION EN SECURITE SAFETY TRAINING Laetitia Laddada 73811 - 79236 safety.training@cern.ch

  16. Energy situation - March 2015

    International Nuclear Information System (INIS)

    This report presents a review of the French energy expenses, prices, production, consumption, demand, import and export during the recent years and up to March 2015. Details are given separately for primary energy, solid mineral fuels, petroleum products, natural gas and electricity

  17. March market review

    International Nuclear Information System (INIS)

    The spot market price for uranium in unrestricted markets weakened further during March, and at month end, the NUEXCO Exchange Value had fallen $0.15, to $7.45 per pound U3O8. The Restricted American Market Penalty (RAMP) for concentrates increased $0.15, to $2.55 per pound U3O8. Ample UF6 supplies and limited demand led to a $0.50 decrease in the UF6 Value, to $25.00 per kgU as UF6, while the RAMP for UF6 increased $0.75, to $5.25 per kgU. Nine near-term uranium transactions were reported, totalling almost 3.3 million pounds equivalent U3O8. This is the largest monthly spot market volume since October 1992, and is double the volume reported in January and February. The March 31 Conversion Value was $4.25 per kgU as UF6. Beginning with the March 31 Value, NUEXCO now reports its Conversion Value in US dollars per kilogram of uranium (US$/kgU), reflecting current industry practice. The March loan market was inactive with no transactions reported. The Loan Rate remained unchanged at 3.0 percent per annum. Low demand and increased competition among sellers led to a one-dollar decrease in the SWU Value, to $65 per SWU, and the RAMP for SWU declined one dollar, to $9 per SWU

  18. Energy situation march 2005

    International Nuclear Information System (INIS)

    The monthly energy situation analysis in France at March 2005, is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

  19. Energy situation. March 2003

    International Nuclear Information System (INIS)

    This report makes a status of the French energy expenses, prices, production, consumption, demand, import and export since January 2001 and up to March 2003. Details are given separately for primary energy, solid mineral fuels, petroleum products, natural gas and electric power. (J.S.)

  20. Energy situation, March 2006

    International Nuclear Information System (INIS)

    The monthly energy situation analysis in France, at March 2006, is presented. Statistics are given for energy consumption, demand, import and export. A special attention is given to the primary energy, the solid fuels, the petroleum products, the natural gas and the electric power. (A.L.B.)

  1. Energy situation. March 2004

    International Nuclear Information System (INIS)

    This report makes a status of the French energy expenses, prices, production, consumption, demand, import and export since January 2002 and up to February or March 2004. Details are given separately for primary energy, solid mineral fuels, petroleum products, natural gas and electric power. (J.S.)

  2. Energy situation - March 2008

    International Nuclear Information System (INIS)

    This report makes a status of the French energy expenses, prices, production, consumption, demand, import and export since January 2006 and up to February-March 2008. Details are given separately for primary energy, solid mineral fuels, petroleum products, natural gas and electricity. (J.S.)

  3. MARCH 2005 PRICES

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    Continuous cold RE market has been a headache for producers. Markup of raw materials, energy and transportation expense is a disaster in succession. Entering March, there is a trend of warm-up in the market, and some RE products have got higher prices than last year. Details are listed below.

  4. Inventory of atmospheric pollutant emissions in France under the Convention on long-distance transfrontier atmospheric pollution and the European directive on national emission ceilings (NEC) - CEE-NU/NFR and NEC, March 2011; Inventaire des emissions de polluants atmospheriques en France au titre de la convention sur la pollution atmospherique transfrontaliere a longue distance et de la directive Europeenne relative aux plafonds d'emissions nationaux (NEC) - CEE-NU/NFR et NEC, mars 2011

    Energy Technology Data Exchange (ETDEWEB)

    Mathias, Etienne; Chang, Jean-Pierre; Fontelle, Jean-Pierre; Allemand, Nadine; Jacquier, Guillaume; Andre, Jean-Marc; Joya, Romain; Deflorenne, Emmanuel; Martinet, Yann; Druart, Ariane; Nicco, Laetitia; Gavel, Antoine; Prouteau, Emilie; Gueguen, Celine; Serveau, Laetitia; Jabot, Julien; Vincent, Julien

    2011-03-15

    This report supplies emissions data, for France, concerning all the substances covered by the different protocols adopted under the Convention on Long Range Transboundary Air Pollution (LRTAP), under the aegis of the United Nations Economic Commission for Europe (UNECE) and by the directive on national emission ceilings (NEC). The substances covered are sulphur dioxide (SO{sub 2}), nitrogen oxides (NO{sub x}), non-methane volatile organic compounds (NMVOCs), ammonia (NH{sub 3}), carbon monoxide (CO), total suspended particles (TSP), fine particles (PM{sub 10} and PM{sub 2.5}), heavy metals (As, Cd, Cr, Cu, Hg, Ni, Pb, Se, Zn) and persistent organic pollutants (POPs) such as dioxins and furans (PCDD/F), specified polycyclic aromatic hydrocarbons (PAHs) compounds (BaP, BbF, BkF, IndPy), polychlorobiphenyls (PCBs) and hexa-chlorobenzene (HCB). Parties to the Convention have to report emissions of these substances annually. Since the edition of march 2010, results are reported in the format UNECE/NFR in accordance with the new specifications set out in the guidelines (ECE/EB.AIR/97 adopted in December 2008) defined by the United Nations Economic Commission for Europe. The results are presented at the national level of aggregation with the NFR nomenclature using 6 sectors and 109 sub-sectors. Conversely, the nomenclature used in the national inventory system to conduct inventories is the CORINAIR/ SNAP 97c nomenclature. A table of correspondence NFR/SNAP 97c is included in this report (cf. annex 10). For the entire period (going back as far as 1980) concerning each substance, estimates provided in the previous inventories have been reviewed and corrected to take into account updated statistics, improved knowledge and possible changes in methodology. Emission trends between the reference year and 2009 show a decline for most substances: - a very sharp decrease (at least 50%) for hexachlorobenzene (99%), lead (98%), dioxins and furans (95%), chromium (94%), zinc (92

  5. La fraude intrinsèque à l’économie de marché rend son éthique illusoire

    OpenAIRE

    Pouzin, Gilles

    2015-01-01

    Le manque d’éthique financière désavantage tout le monde. Sans sauve­tage public, la crise bancaire aurait coulé l’économie de marché en 2009. Le coût de l’irresponsabilité financière (l’aléa moral) est transféré aux États et aux ci­toyens. Les prêts subventionnés aux banques pénalisent l’épargne et les pensions. La croissance, l’emploi, les recettes fiscales, les services publics et la protection sociale sont dégradés. Malgré des scandales et des procès médiatisés, les lanceurs d’alerte subi...

  6. Sexe et pouvoir aux États-Unis

    Directory of Open Access Journals (Sweden)

    Mokhtar BEN BARKA

    2003-06-01

    Full Text Available Les adversaires politiques de Bill Clinton aiment à dire que l’Histoire se souviendra de lui plus à cause de ses mensonges et de sa sexualité débordante qu’en raison de son bilan. En vérité, les frasques sexuelles du président Clinton ne sont que la perpétuation d’une tradition qui remonte aux origines de la nation américaine. “Long before there was a United States of America”, écrit Shelley Ross, “there was sex, scandal, and corruption in American politics. In fact, some of the most notoriou...

  7. Le date rape aux États-Unis

    OpenAIRE

    Fassin, Éric

    2013-01-01

    Pour appréhender une culture, on peut partir, non des représentations partagées, mais des polémiques qui la déchirent. Ainsi du date rape aux États-Unis, invention du féminisme universitaire et médiatique des années 1980 : en posant la question de la violence au cœur des rapports amoureux, le féminisme impose moins une orthodoxie qu’il ne propose une interprétation, doublement contestée durant les années quatre-vingt-dix par les intellectuels conservateurs et les essayistes « post-féministes ...

  8. Shakespeare Cliff, rempart symbolique aux portes du royaume

    Directory of Open Access Journals (Sweden)

    Jeremy Price

    2006-02-01

    Full Text Available Figure 1 : Clarkson STANFIELD, Shakespeare Cliff, Dover, 1849, 1862« Il est une falaise, dont le front haut et courbeRegarde avec effroi dans l’abîme qu’elle enserre :Conduis-moi jusqu’à son bordEt je remédierai à la misère que tu souffresPar quelque riche objet ; de cet endroitJe n’aurai point besoin de guide. »Les lignes ci-dessus, tirées de l’Acte IV, Scène I du Roi Lear, font allusion aux falaises de Douvres, plus particulièrement à leur point culminant, un grand bloc de calcaire et de cr...

  9. Apport de l'analyse interactive d'images à l'étude de l'évolution structurale de zones déformées : application à une zone de cisaillement pan-africaine de l'Adrar des Iforas (Mali) et aux orthogneiss du massif du Grand Paradis (Alpes, Italie)

    OpenAIRE

    Champenois, Michel

    1989-01-01

    L'analyse quantitative de la déformation des roches apparaît indispensable si l'on veut pouvoir comprendre et discuter les mécanismes de la déformation à différentes échelles d'observation. Dans ce mémoire, l'étude de la déformation finie à l'échelle microscopique, a été réalisée à partir de la forme et de l'orientation de cristaux constituant les populations de marqueurs. A cette fin, nous avons développé un outil permettant d'avoir facilement accès, aux paramètres de forme et d'orientation,...

  10. Constitutive auxin response in Physcomitrella reveals complex interactions between Aux/IAA and ARF proteins.

    Science.gov (United States)

    Lavy, Meirav; Prigge, Michael J; Tao, Sibo; Shain, Stephanie; Kuo, April; Kirchsteiger, Kerstin; Estelle, Mark

    2016-01-01

    The coordinated action of the auxin-sensitive Aux/IAA transcriptional repressors and ARF transcription factors produces complex gene-regulatory networks in plants. Despite their importance, our knowledge of these two protein families is largely based on analysis of stabilized forms of the Aux/IAAs, and studies of a subgroup of ARFs that function as transcriptional activators. To understand how auxin regulates gene expression we generated a Physcomitrella patens line that completely lacks Aux/IAAs. Loss of the repressors causes massive changes in transcription with misregulation of over a third of the annotated genes. Further, we find that the aux/iaa mutant is blind to auxin indicating that auxin regulation of transcription occurs exclusively through Aux/IAA function. We used the aux/iaa mutant as a simplified platform for studies of ARF function and demonstrate that repressing ARFs regulate auxin-induced genes and fine-tune their expression. Further the repressing ARFs coordinate gene induction jointly with activating ARFs and the Aux/IAAs. PMID:27247276

  11. Constitutive auxin response in Physcomitrella reveals complex interactions between Aux/IAA and ARF proteins

    Science.gov (United States)

    Lavy, Meirav; Prigge, Michael J; Tao, Sibo; Shain, Stephanie; Kuo, April; Kirchsteiger, Kerstin; Estelle, Mark

    2016-01-01

    The coordinated action of the auxin-sensitive Aux/IAA transcriptional repressors and ARF transcription factors produces complex gene-regulatory networks in plants. Despite their importance, our knowledge of these two protein families is largely based on analysis of stabilized forms of the Aux/IAAs, and studies of a subgroup of ARFs that function as transcriptional activators. To understand how auxin regulates gene expression we generated a Physcomitrella patens line that completely lacks Aux/IAAs. Loss of the repressors causes massive changes in transcription with misregulation of over a third of the annotated genes. Further, we find that the aux/iaa mutant is blind to auxin indicating that auxin regulation of transcription occurs exclusively through Aux/IAA function. We used the aux/iaa mutant as a simplified platform for studies of ARF function and demonstrate that repressing ARFs regulate auxin-induced genes and fine-tune their expression. Further the repressing ARFs coordinate gene induction jointly with activating ARFs and the Aux/IAAs. DOI: http://dx.doi.org/10.7554/eLife.13325.001 PMID:27247276

  12. L’accès aux ressources d’une formation guidé par des ontologies

    Directory of Open Access Journals (Sweden)

    Marie-Hélène Abel

    2006-01-01

    Full Text Available [Français] Beaucoup de ressources sont mises à contribution pour supporter une formation de type e-learning. L’un des objectifs du projet MEMORAe est de rendre ces ressources plus accessibles aux apprenants. Ce projet propose une approche fondée sur une mémoire organisationnelle de l’ensemble des notions et des ressources de la formation. Un principe est d’indexer ces ressources sur les concepts d’ontologie. Nous décrivons les moyens déployés à cette fin. Nous présentons les scénarios par lesquels les apprenants accèdent aux connaissances en parcourant ces ontologies. Enfin, nous illustrons notre propos à l’aide de deux applications actuellement mises en place en université. [English] Many resources are now available in order to support e-learning. One objective of the MEMORAe project is to make these resources more accessible to the students. This project proposes an approach based on an organizational memory of the notions and resources of the formation. A principle is to index these resources on the concepts of some ontologies. We describe the means implemented in this aim. We present the manner in which the students reach the knowledge, by moving in these ontologies. At last, we illustrate our presentation by means of two applications recently set up in some universities.

  13. Hanford Environmental Analytical Methods (methods as of March 1990)

    International Nuclear Information System (INIS)

    Techniques in use at the Hanford Reservation as of March, 1990 for the analysis of liquids, organic wastes, soils, and sediments, are described. Limitations and applications of the techniques are included

  14. Hanford environmental analytical methods (methods as of March 1990)

    International Nuclear Information System (INIS)

    Techniques in use at the Hanford Reservation as of March, 1990 for the analysis of liquids and radioactive effluents are described. Limitations and applications of the techniques are included. This report is Appendix A3-R

  15. Impacts of March 11

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    @@ Feng: The world-shocking September 11 terrorist attacks occurred in the United States in 2001, and two and a half years late the world saw panic-stricken terrorist attacks of the same kind in Spain. Ever since then March 11 has become another day that is engraved on the mind of the people all over the world. The terrorist event in Madrid has not only produced great impact on Spain and other European nations as well as on the common people, but also spurred the European nations to reflect on a series of important issues and to make some adjustments of their policies.

  16. Field and concentration dependent scaling behavior of the thermal expansion near the quantum critical point of CeCu6-xAux

    International Nuclear Information System (INIS)

    The heavy-fermion system CeCu6-xAux exhibits long-range antiferromagnetic order at x>0.1. The order can be suppressed by hydrostatic or chemical pressure, through the variation of the Au content, as well as by the application of a magnetic field. The quantum critical point at the onset of antiferromagnetism leads to non-Fermi liquid behavior visible in thermodynamic and transport properties. Among these, the thermal expansion offers a particularly sensitive probe to study the quantum critical scaling behavior due to the strong pressure dependence of the Kondo effect in heavy-fermion materials. To shed light on the difference between the two control parameters, pressure and magnetic field, we studied the scaling behavior of the thermal expansion on CeCu6-xAux single crystals with varying Au content as a function of the magnetic field in the temperature range between 40 mK and 10 K.

  17. Les représentations sociales du travail dans des parcours de retour aux études aux niveaux collégial et universitaire

    OpenAIRE

    Claude Julie Bourque; Pierre Doray

    2009-01-01

    Cet article porte sur le volet éducatif de la production et de la reproduction de la main-d’œuvre hautement qualifiée par l’examen des processus en jeu au moment des retours aux études dans des programmes de formation technique et de génie. Nous nous intéressons en particulier à une situation emblématique des référentiels politiques récents en matière d’éducation, soit les retours aux études. Nous cherchons à mieux comprendre comment le retour aux études se réalise, comment les représentation...

  18. La contribution des technologies de l'information et de communication dans la performance des marchés électroniques

    OpenAIRE

    Helmi Hamdi

    2006-01-01

    L’objectif de ce papier est d’analyser quelques aspects théoriques de l’économie industrielle liés aux technologies de l’information et de communication. Nous nous intéressons en particulier aux activités marchandes utilisant Internet comme endroit d’échange privilégié, c’est à dire le commerce électronique. Ce dernier est connu comme un marché parfait et sans friction, se rapprochant ainsi de l’idéal-type du marché Walrasien et de la théorie de la concurrence pure et parfaite. L’objectif de ...

  19. Introduction aux études sur le genre. - 2e éd. revue et augm.

    NARCIS (Netherlands)

    L. Bereni; S. Chauvin; A. Jaunait; A. Revillard

    2012-01-01

    Pourquoi offre-t-on des poupées aux filles et des voitures aux garçons ? Pourquoi les femmes gagnent-elles moins que les hommes ? Comment expliquer qu’elles effectuent les deux tiers du travail domestique ? Pourquoi est-ce si mal vu pour un homme d’être efféminé ? Le pouvoir est-il intrinsèquement m

  20. Theory of structure and dynamics in condensed matter and applications in geophysics and solar energy. Progress report, 1 April 1975--31 March 1976

    Energy Technology Data Exchange (ETDEWEB)

    Krumhansl, J.A.

    1976-03-01

    The basic materials science objectives of the program have been met, and the theory built up over the past years on the properties of rocks and on the design of composite photothermal conversion surfaces has been tested. The major topics have been: (1) Theory of structural phase transitions; (2) Theory of interatomic interactions, with application to defect structures and surface complexes; and (3) Application of the theory of disordered (heterogeneous) materials to the elastic properties of rocks, commercial graphite, and composite solar energy absorbing materials. (WDM)

  1. Inventory and case studies of Louisiana, non-electric industrial applications of geopressured geothermal resources. Quarterly progress report, March 1-May 31, 1977

    Energy Technology Data Exchange (ETDEWEB)

    Schnadelbach, T.W. Jr.

    1977-06-01

    An inventory is provided of geopressured geothermal resources in Louisiana. The Louisiana industries; classified as Food and Kindred Products were cataloged and inventoried to determine potential and specific uses of the known energy resources. The possibility of relocating industries to the available resources is explored. Individual case studies are presented for near term industrial conversion for resource application. (MHR)

  2. Cours Sécurité : Sensibilisation aux gestes et postures de travail

    CERN Multimedia

    DGS Unit

    2010-01-01

    Prochaine session le 21 octobre 2010. 12 places disponibles. Ce cours concerne toutes les personnes appelées à réaliser des manutentions manuelles dans le cadre de leurs activités. Contenu du cours : Théorie - Présentation des objectifs du programme ; - L'accident du travail (définition, coûts) ; - Statistiques CNAM ; - Notion d'anatomie (mécanique humaine) ; - Les différentes pathologies (lumbago, sciatique, hernie discale) ; - Discussion sur les problèmes particuliers rencontrés dans la vie courante. Pratique - Les efforts mécaniques sur la colonne dus aux mauvaises postures ; - Les principes de base de l'utilisation de la mécanique humaine ; - Exercices pratiques d'application (sur objets divers standards) ; - Prises de vues au caméscope des positions de chacun. Pour vous inscrire : https://edh.cern.ch/Document/Personnel/TRN?new=YES&...

  3. Productivity and injectivity of horizontal wells. Annual report, March 10, 1995--March 9, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Aziz, K.; Hewett, T.

    1996-05-01

    The DOE approval for the annual renewal of the research grant to the Stanford Project on the Productivity and Injectivity of Horizontal Wells was received in early March 1995. Project goals include the advanced modeling of horizontal wells; investigation and incorporation of the effects of reservoir heterogeneities; development of improved methods of calculating multi-phase pressure drops within wellbores; development of multi-well models; testing of horizontal well models with field examples; EOR applications; and application studies and their optimization.

  4. OBJECT-LEVEL CHANGE DETECTION BASED ON HIGH-RESOLUTION REMOTE-SENSING IMAGES AND ITS APPLICATION IN JAPANESE EARTHQUAKE ON MARCH 11, 2011

    OpenAIRE

    Sun, K.; D. Li; Sui, H.; Liu, J; G. Ma

    2012-01-01

    In accordance with the characteristics of change detection based on high-resolution remote-sensing images, this paper has put forward an object-level change detection method that is based on multi-feature integration and can take into account the properties of different types of object. This method classifies the most essential change information in applications into artificial objects related change information, water-related change information and vegetation-related change informat...

  5. Structural basis for the auxin-induced transcriptional regulation by Aux/IAA17.

    Science.gov (United States)

    Han, Mookyoung; Park, Yangshin; Kim, Iktae; Kim, Eun-Hee; Yu, Tae-Kyung; Rhee, Sangkee; Suh, Jeong-Yong

    2014-12-30

    Auxin is the central hormone that regulates plant growth and organ development. Transcriptional regulation by auxin is mediated by the auxin response factor (ARF) and the repressor, AUX/IAA. Aux/IAA associates with ARF via domain III-IV for transcriptional repression that is reversed by auxin-induced Aux/IAA degradation. It has been known that Aux/IAA and ARF form homo- and hetero-oligomers for the transcriptional regulation, but what determines their association states is poorly understood. Here we report, to our knowledge, the first solution structure of domain III-IV of Aux/IAA17 (IAA17), and characterize molecular interactions underlying the homotypic and heterotypic oligomerization. The structure exhibits a compact β-grasp fold with a highly dynamic insert helix that is unique in Aux/IAA family proteins. IAA17 associates to form a heterogeneous ensemble of front-to-back oligomers in a concentration-dependent manner. IAA17 and ARF5 associate to form homo- or hetero-oligomers using a common scaffold and binding interfaces, but their affinities vary significantly. The equilibrium dissociation constants (KD) for homo-oligomerization are 6.6 μM and 0.87 μM for IAA17 and ARF5, respectively, whereas hetero-oligomerization reveals a ∼ 10- to ∼ 100-fold greater affinity (KD = 73 nM). Thus, individual homo-oligomers of IAA17 and ARF5 spontaneously exchange their subunits to form alternating hetero-oligomers for transcriptional repression. Oligomerization is mainly driven by electrostatic interactions, so that charge complementarity at the interface determines the binding affinity. Variable binding affinity by surface charge modulation may effectively regulate the complex interaction network between Aux/IAA and ARF family proteins required for the transcriptional control of auxin-response genes. PMID:25512488

  6. Halting the allergic march.

    Science.gov (United States)

    Van Bever, Hugo P; Samuel, Sudesh T; Lee, Bee Wah

    2008-04-01

    The prevalence of childhood allergic diseases, such as allergic asthma, allergic rhinitis, and atopic dermatitis, has increased exponentially. In Singapore, the prevalence of asthma at all ages exceeds 20%, and around 50% of Singaporean children show features of an underlying allergy. The exact environmental causes for the increase of allergic diseases have not yet been identified, but most researchers agree that a decreased bacterial load in young children may be one of the reasons for the increase. However, the causes of allergy are multiple, and the development of an allergic disease is the result of complex interactions between genetic constitution and environmental factors. In this review article, different aspects of allergic sensitization are covered, including prenatal and postnatal sensitization. The phenomenon of the "allergic march" (switching from one clinical expression of allergy to another) and its underlying mechanisms are discussed. The last part of this review article is on prevention and treatment of allergic diseases, including the role of bacterial products (probiotics, prebiotics, and synbiotics) and the role of immunotherapy, including sublingual immunotherapy. PMID:23283392

  7. Resonant ionization by laser beams: application to ions sources and to study the nuclear structure of radioactive tellurium isotopes; Ionisation resonante par faisceaux laser: application aux sources d'ions et a l'etude de la structure des noyaux radioactifs de tellure

    Energy Technology Data Exchange (ETDEWEB)

    Sifi, R

    2007-07-15

    The radioactive ion beams that are produced through current isotope separators are well separated according to the A mass but not according to the Z parameter. The resonant ionization through laser beams applied to ion sources allows the production of radioactive ion beam in a very selective and efficient way by eliminating the isobaric contamination. The first chapter is dedicated to the resonant ionization by laser beams, we describe the principle, the experimental setting, the lasers used, the ionization schemes and the domain of application. The second chapter deals with the application of resonant ionization to laser ion sources for the production of radioactive ion beams. We present experimental tests performed for getting copper ion beams. Resonant ionization through laser is also used in the spectroscopy experiments performed at the Isolde (isotope separation on-line device) installation in CERN where more than 20 elements are ionized very efficiently. The technique is based on a frequency scanning around the excitation transition of the atoms in order to probe the hyperfine structure. Laser spectroscopy allows the determination of the hyperfine structure as well as the isotopic shift of atoms. In the third chapter the method is applied to the spectroscopy of tellurium atoms. First, we define the 2 parameters on which the extraction is based: charge radius and nuclear moments, then we present several theoretical models that we have used to assess our experimental results. (A.C.)

  8. Nuclear interactions in high energy heavy ions and applications in astrophysics. Technical progress report, 1 April 1992--31 March 1993

    Energy Technology Data Exchange (ETDEWEB)

    Wefel, J.P.; Guzik, T.G.

    1993-01-11

    The overall objective is to study the mechanisms and the energy dependence of heavy ion fragmentation by studying the reactions of heavy ion projectiles (e.g. {sup 4}He, {sup 16}O, {sup 20}Ne, {sup 28}Si, {sup 56}Fe) in a variety of targets (H, He, C, Si, Cu, Pb) and at a number of beam energies exceeding 0.1 GeV/nucleon. The results have application to questions in high-energy nuclear astrophysics. Most of the discussion is on low-energy {sup 16}O,{sup 28}Si data analysis. The description includes analysis procedures and techniques, detector calibrations, data selections and normalizations. Cross section results for the analysis are also presented. 83 figs., 6 tabs., 73 refs.

  9. Médiation. Un nouveau service public aux entreprises

    OpenAIRE

    Sebastien M. Lemeunier; Jean-Philippe Robic

    2014-01-01

    Alongside commercial courts and in an economic and financial crisis context, the French State fosters and supports the integration of mediation between firms and their economic partners. Three types of organizations resulted in Mediation between firms and banks (Médiation du crédit), Mediation between firms (Médiation Inter-entreprises) and Mediation between firms and public procurement (Médiation des Marchés publics). First we ask: what is the importance of this recent phenomenon and how doe...

  10. Use of international data sets to evaluate and validate pathway assessment models applicable to exposure and dose reconstruction at DOE facilities. Progress report, March--May 1994

    Energy Technology Data Exchange (ETDEWEB)

    Anspaugh, L.R.; Hendrickson, S.M. [eds.] [Lawrence Livermore National Lab., CA (United States); Hoffman, F.O. [Senes Oak Ridge, Inc., TN (United States). Center for Risk Analysis

    1994-06-01

    The project described in this report was the result of a Memorandum of Cooperation between the US and the former-USSR following the accident at the Chernobyl Nuclear Power Plant Unit 4. A joint program was established to improve the safety of nuclear power plants and to understand the implications of environmental releases. The task of Working Group 7 was ``to develop jointly methods to project rapidly the health effects of any future nuclear reactor accident.`` The current objective of this project is to evaluate and validate pathway-assessment models applicable to exposure and dose reconstruction at DOE facilities through use of international data sets. This project incorporates data used for the prediction of radionuclide transfer through agricultural and aquatic systems to humans. It also includes participation in two multinational studies, BIOMOVS (Biospheric Model Validation Study) with the Swedish National Institute for Radiation Protection and VAMP (Validation of Model Predictions) with the International Atomic Energy Agency, that address testing the performance of models of radionuclide transport through foodchains. In the future, this project will be considered separately from the Chernobyl Studies Project and the essential activities of former Task 7.1D will be folded within the broader umbrella of the BIOMOVS and VAMP projects. The Working Group Leader of Task 7.1D will continue to provide oversight for this project.

  11. The post-closure radiological safety case for a spent fuel repository in Sweden - An international peer review of the SKB license-application study of March 2011

    International Nuclear Information System (INIS)

    Sweden is at the forefront among countries developing plans for a deep geological repository of highly radioactive waste. There is no such repository in operation yet worldwide, but Sweden, Finland and France are approaching the licensing stage. At the request of the Swedish government, the NEA organised an international peer review of the post-closure radiological safety case produced by the Swedish Nuclear Fuel and Waste Management Company (SKB) in support of the application for a general licence to construct and operate a spent nuclear fuel geological repository in the municipality of Oesthammar. The purpose of the review was to help the Swedish government, the public and relevant organisations by providing an international reference regarding the maturity of SKB's spent fuel disposal programme vis-a-vis best practices in long-term disposal safety and radiological protection. The International Review Team (IRT) consisted of ten international specialists, who were free of conflict of interest with the SKB and brought complementary expertise to the review. This report provides the background and findings of the international peer review. The review's findings are presented at several levels of detail in order to be accessible to both specialist and non-specialist readers

  12. Expression of PIN and AUX1 genes encoding putative carrier proteins for auxin polar transport in etiolated pea epicotyls [correction of epicotyles] under simulated microgravity conditions on a three-dimensional clinostat.

    Science.gov (United States)

    Hoshino, Tomoki; Hitotsubashi, Reiko; Miyamoto, Kensuke; Tanimoto, Eiichi; Ueda, Junichi

    2003-10-01

    Etiolated pea (Pisum sativum L. cv. Alaska) seedlings grown under simulated microgravity conditions on a 3-dimensional clinostat showed automorphosis-like growth and development similar to that observed in true microgravity conditions in space. Application of inhibitors of auxin polar transport phenocopied automorphosis-like growth on 1 g conditions, suggesting that automorophosis is closely related to auxin polar transport. Strenuous efforts to know the relationships between automorphosis and auxin polar transport in pea seedlings at molecular bases resulted in successful identification of PsPIN2 and PsAUX1 encoding putative auxin efflux and influx carrier protein, respectively. Significantly high levels in homology were found on nucleotide and deduced amino acid sequences among PsPIN2, PsPIN1 and AtPINs, and between PsAUX1 and AtAUX1. Expression of PsPIN1 and PsAUX1 genes in etiolated pea seedlings grown on the clinostat were substantially affected, but that of PsPIN2 was not. Roles of these genes in auxin polar transport and automorphosis of etiolated pea seedlings are also described. PMID:14676360

  13. Study of deuterons induced nuclear reactions on light elements (N, Al and Si): Application to containment materials of radioactive wastes; Etude des reactions nucleaires induites par des deuterons sur des elements legers (N, Al, Si): application aux materiaux de confinement des dechets radioactifs

    Energy Technology Data Exchange (ETDEWEB)

    Pellegrino, St

    2004-03-01

    Nuclear reaction analysis is well adapted to the quantification of light element. Profiles of concentration in order to follow elements migration into materials can be undertaken. This technique is used to study the behavior of the future matrices for nuclear waste containment. This technique is isotopic, characterized by a good signal-to-background ratio and a very low detection limit. The probability of a nuclear reaction is linked to a parameter called 'cross section' we have to know in order to carry out quantitative analysis. We have determined excitation curves for nitrogen, aluminium and silicon. These experiments were done with deuterons from 0.5 to 2 MeV. Two methods for the cross section characterization are presented and are in agreement with each other. The second one reduces uncertainty. Data are incorporated in the simulation software SIMNRA. We have compared the results obtained on different samples when we use data in literature or data of the study. We have noticed a great fit improvement with the data of this study. The new cross sections of this work will be integrated in the general data base SIGMABASE. Applications on materials such as Si{sub 3}N{sub 4}, nano-metric powders, WCN and nuclear glass YLaMgSiAlON studied for radioactive waste containment are also presented. (author)

  14. Mixed approach (numerical modeling / equilibrium analysis) for slope stability analysis: development and application to the dams and open pit mining; Une approche mixte (numerique/equilibre limite) pour le calcul de stabilite des ouvrages en terre: developpement et application aux barrages et talus miniers

    Energy Technology Data Exchange (ETDEWEB)

    Kourdey, A.

    2002-09-15

    The determination of the sliding surface of slope (dam, slope natural..) is one of the important and complicated problems in geotechnics. The Analyze of stability by the methods of Limit Equilibrium like the method of slices are the most used methods. They are able to determine a safety factor for a geometrically defined failure surface. These methods well adapted to the homogeneous mediums, have been developed a lot but they do not integrate the basic relations of mechanics (stress-strain). The numerical methods are better adapted to mediums having more complexity (effect of water, seismicity, fracturing,..). But, they are seldom used to determine a sliding surface and a safety factor. Each family offers appreciable advantages in the analysis of slope stability. For that purpose, we have developed a method that combines the advantages of the numerical methods as well as those of Limit Equilibrium allowing obtaining a slip surface determined by the calculated constraints. This slip surface may be imposed or better optimized, thus providing a minimal safety factor. Methods of operation research are used to obtain this surface. They are search methods by level, dynamic research.. or both at the same time. We integrated these developments in an existing computer code based on the method of Finite Differences known as FLAC. The stresses are determined for a linear behavior and for nonlinear. Interfaces and graphic tools are also produced to facilitate the analysis of stability. The validity of this approach was carried out for a standard case of slope, we analyzed and compared the results with the methods of Limit Equilibrium. The parametric study shows that this approach takes account of different parameters, which influences stability. We also kept a particular place for the application on real cases presenting slopes of different nature (dams, mining slops,...). (author)

  15. CERN's new arrivals, March 2006.

    CERN Multimedia

    Jacques Fichet

    2006-01-01

    On Thursday 30 March 2006, members of the CERN Management welcomed recently recruited Staff Members and Fellows at the quarterly session of the Induction Programme (photographed here with Enrico CHIAVERI, HR Department).

  16. CERN's new arrivals, March 2004.

    CERN Multimedia

    Patrice Loïez

    2004-01-01

    On Tuesday 9 March 2004, representatives of the CERN Management welcomed recently-recruited staff members and fellows at the trimester session of the Induction Programme (photographed here with Werner Zapf, Head of the Human Resources Department).

  17. Genome-Wide Analysis and Characterization of Aux/IAA Family Genes in Brassica rapa.

    Directory of Open Access Journals (Sweden)

    Parameswari Paul

    Full Text Available Auxins are the key players in plant growth development involving leaf formation, phototropism, root, fruit and embryo development. Auxin/Indole-3-Acetic Acid (Aux/IAA are early auxin response genes noted as transcriptional repressors in plant auxin signaling. However, many studies focus on Aux/ARF gene families and much less is known about the Aux/IAA gene family in Brassica rapa (B. rapa. Here we performed a comprehensive genome-wide analysis and identified 55 Aux/IAA genes in B. rapa using four conserved motifs of Aux/IAA family (PF02309. Chromosomal mapping of the B. rapa Aux/IAA (BrIAA genes facilitated understanding cluster rearrangement of the crucifer building blocks in the genome. Phylogenetic analysis of BrIAA with Arabidopsis thaliana, Oryza sativa and Zea mays identified 51 sister pairs including 15 same species (BrIAA-BrIAA and 36 cross species (BrIAA-AtIAA IAA genes. Among the 55 BrIAA genes, expression of 43 and 45 genes were verified using Genebank B. rapa ESTs and in home developed microarray data from mature leaves of Chiifu and RcBr lines. Despite their huge morphological difference, tissue specific expression analysis of BrIAA genes between the parental lines Chiifu and RcBr showed that the genes followed a similar pattern of expression during leaf development and a different pattern during bud, flower and siliqua development stages. The response of the BrIAA genes to abiotic and auxin stress at different time intervals revealed their involvement in stress response. Single Nucleotide Polymorphisms between IAA genes of reference genome Chiifu and RcBr were focused and identified. Our study examines the scope of conservation and divergence of Aux/IAA genes and their structures in B. rapa. Analyzing the expression and structural variation between two parental lines will significantly contribute to functional genomics of Brassica crops and we belive our study would provide a foundation in understanding the Aux/IAA genes in B. rapa.

  18. Genome-Wide Analysis and Characterization of Aux/IAA Family Genes in Brassica rapa.

    Science.gov (United States)

    Paul, Parameswari; Dhandapani, Vignesh; Rameneni, Jana Jeevan; Li, Xiaonan; Sivanandhan, Ganesan; Choi, Su Ryun; Pang, Wenxing; Im, Subin; Lim, Yong Pyo

    2016-01-01

    Auxins are the key players in plant growth development involving leaf formation, phototropism, root, fruit and embryo development. Auxin/Indole-3-Acetic Acid (Aux/IAA) are early auxin response genes noted as transcriptional repressors in plant auxin signaling. However, many studies focus on Aux/ARF gene families and much less is known about the Aux/IAA gene family in Brassica rapa (B. rapa). Here we performed a comprehensive genome-wide analysis and identified 55 Aux/IAA genes in B. rapa using four conserved motifs of Aux/IAA family (PF02309). Chromosomal mapping of the B. rapa Aux/IAA (BrIAA) genes facilitated understanding cluster rearrangement of the crucifer building blocks in the genome. Phylogenetic analysis of BrIAA with Arabidopsis thaliana, Oryza sativa and Zea mays identified 51 sister pairs including 15 same species (BrIAA-BrIAA) and 36 cross species (BrIAA-AtIAA) IAA genes. Among the 55 BrIAA genes, expression of 43 and 45 genes were verified using Genebank B. rapa ESTs and in home developed microarray data from mature leaves of Chiifu and RcBr lines. Despite their huge morphological difference, tissue specific expression analysis of BrIAA genes between the parental lines Chiifu and RcBr showed that the genes followed a similar pattern of expression during leaf development and a different pattern during bud, flower and siliqua development stages. The response of the BrIAA genes to abiotic and auxin stress at different time intervals revealed their involvement in stress response. Single Nucleotide Polymorphisms between IAA genes of reference genome Chiifu and RcBr were focused and identified. Our study examines the scope of conservation and divergence of Aux/IAA genes and their structures in B. rapa. Analyzing the expression and structural variation between two parental lines will significantly contribute to functional genomics of Brassica crops and we belive our study would provide a foundation in understanding the Aux/IAA genes in B. rapa. PMID

  19. Application des modèles mécanistiques de cinétique chimique aux combustions industrielles. Illustration par la fabrication du gaz de synthèse Application of Mechanistic Models of Chemical Kinetics to Industrial Combustion. Illustration by Synthetic Gas Manufacturing

    Directory of Open Access Journals (Sweden)

    Gateau P.

    2006-11-01

    Full Text Available En combustion, la formation d'espèces mineures clés, comme les polluants, peut être interprétée par des modèles mécanistiques de cinétique chimique. Les informations que fournissent ces modèles, même s'il ne s'agit que de tendances, sont suffisamment fiables pour définir des choix technologiques. Toutefois, compte-tenu de la complexité des phénomènes traités, leur emploi fait appel à une méthode indirecte décrite dans cet article et illustrée par la conception d'un réacteur autotherme destiné à la préparation d'un syngaz (gaz de synthèse. Dans l'exemple proposé comme application, l'objectif est de faire fonctionner à l'air un réacteur opérant actuellement à l'oxygène pur. Le modèle mécanistique choisi établit très clairement les contraintes imposées par ce choix. During the development of a partial combustion reactor for natural gas [1], Institut Français du Pétrole (IFP has made use of a mechanistic model to determine the impact of operational parameters on the formation of soot. The model we chose deals with the oxidation and pyrolysis of light hydrocarbons by several hundred elementary reactions, some of which are shown in Table 1. All the species taken into consideration as well as their linking are shown in the flowchart in Fig. 3. Our data mainly came from References [2] and [8], from which we took all the reactions of species having three carbon atoms or less as well as the pyrolysis reactions of hydrocarbons with four carbon atoms. In this database, the kinetic coefficients of reactions between CH4 and the C2H5, C2H3 and C2H radicals were replaced by the values published in Reference [9]. This set of reactions is not sufficient to analyze the formation of soot, and so we added on the pyrolysis reactions of acetylene from Reference [10]. The model assimilated the total mass of carbon contained in C5 and C6 hydrocarbons with a soot number assumed to be proportional to the mass of soot formed by the

  20. Report of transparency and nuclear safety 2007 CEA Fontenay aux Roses; Rapport transparence et securite nucleaire 2007 CEA Fontenay aux Roses

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    This report presents the activities of the CEA Center of Fontenay aux roses for the year 2007. After many years of decommissioning and dismantling of nuclear installations, the Center is now devoted (since 2005) to the development of research programmes on biology and biomedical technologies. The actions concerning the safety, the radiation protection, the significant events, the release control and the environmental impacts and the wastes stored on the center are discussed. (A.L.B.)

  1. Editorial: Mobile (March 2010

    Directory of Open Access Journals (Sweden)

    Thomas Kunz

    2010-02-01

    Full Text Available Open source software and hardware has become an accepted way of developing new and interesting applications in many information and communication technology domains: operating systems, databases, Web infrastructure, and applications. It's not surprising that with the increasing popularity of mobile handheld devices, users and researchers have explored the power of open approaches to providing innovative new applications and services in this domain. However, unlike personal computers and the Internet, mobile handsets were tightly controlled by mobile network operators (MNOs who developed a vertical ecosystem by integrating the communication infrastructure, the handheld device hardware, and often the applications installed on those devices. The software and protocols running the mobile communications infrastructure and devices are often standardized by membership-only bodies, where large MNOs and manufacturers have a predominant influence. These players invest significant financial resources into shaping the industry along their vision to gain a competitive advantage. A current example is the ongoing battle about the dominant radio access technology for 4G cellular systems: LTE vs. Wimax. These trends have changed recently. Companies such as Google, Nokia, or Openmoko and Industry Alliances such as the Open Handset Alliance are providing the core building blocks, both in hardware as well as software, of increasingly open mobile devices. This issue of the OSBR reviews the relevant trends in the open mobile platform space from a number of perspectives. As the articles in these issue show, there is a lot of exciting ongoing work that brings the power of open source development to the mobile space. This trend is not just confined to the mobile devices as there are also efforts in the development of open mobile infrastructure elements and whole systems.

  2. Thermal modeling. Application to lithium batteries; Modelisation thermique. Application aux accumulateurs lithium

    Energy Technology Data Exchange (ETDEWEB)

    Alexandre, A. [Ecole Nationale Superieure de Mecanique et d`Aerotechnique (ENSMA), 86 - Poitiers (France); Flament, P. [SAFT, 33 - Bordeaux (France); Marolleau, T. [SAFT, Advanced and Industrial Battery Group, 86 - Poitiers (France); Guiot, T.; Lefriec, C. [TSR Futuropolis, 86 - Chasseneuil du Poitou (France)

    1996-12-31

    The thermal modeling of electrochemical batteries is today an integral part of the design and validation operations of new products. The Li-ion pair allows to increase the power density of batteries but leads to higher heat fluxes during charging-output cycles. Thus, the thermal control has become more crucial and requires the use of modeling. SAFT and TSR companies are involved in this approach and use the ESACAP software. This paper presents this software which uses a nodal method for the modeling of the coupled thermal and electrical processes that take place inside elementary cells and batteries. (J.S.)

  3. Discrete modelling of rock-fill: Application to dams; Modelisation discrete des enrochements: Application aux barrages

    Energy Technology Data Exchange (ETDEWEB)

    Deluzarche, R.

    2004-12-15

    In this study, a discrete numerical model for rock-fill is built up and validated. This model is based upon the definition of bidimensional clusters that can break in different ways. The resistance of the inner bonds of the clusters are calibrated by reproducing the size-dependant resistance of rock blocks submitted to crushing tests. Numerical simulations of laboratory tests are performed on samples made of the different clusters. Tests on crushable clusters emphasize the utmost importance of particle crushing on the behaviour. A dam is modelled. The role of the placed-rock face on the stabilisation is underlined. The deformation of the dam during reservoir filling, as well as its good seismic behaviour is well reproduced by the model. The model makes it possible to show the influence of particle breakage on the settlements. (author)

  4. Monitoring the performance of Aux. Feedwater Pump using Smart Sensing Model

    Energy Technology Data Exchange (ETDEWEB)

    No, Young Gyu; Seong, Poong Hyun [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)

    2015-10-15

    Many artificial intelligence (AI) techniques equipped with learning systems have recently been proposed to monitor sensors and components in NPPs. Therefore, the objective of this study is the development of an integrity evaluation method for safety critical components such as Aux. feedwater pump, high pressure safety injection (HPSI) pump, etc. using smart sensing models based on AI techniques. In this work, the smart sensing model is developed at first to predict the performance of Aux. feedwater pump by estimating flowrate using group method of data handing (GMDH) method. If the performance prediction is achieved by this feasibility study, the smart sensing model will be applied to development of the integrity evaluation method for safety critical components. Also, the proposed algorithm for the performance prediction is verified by comparison with the simulation data of the MARS code for station blackout (SBO) events. In this study, the smart sensing model for the prediction performance of Aux. feedwater pump has been developed. In order to develop the smart sensing model, the GMDH algorithm is employed. The GMDH algorithm is the way to find a function that can well express a dependent variable from independent variables. This method uses a data structure similar to that of multiple regression models. The proposed GMDH model can accurately predict the performance of Aux.

  5. Les " marchés " de l'eau et de la terre dans la plaine de la Mitidja en Algérie : opportunités et fragilités

    OpenAIRE

    Imache, A.; Kuper, Marcel; Bouarfa, Sami; Hartani, Tarik; Dionnet, Mathieu

    2011-01-01

    Ce papier démontre qu'il existe une véritable organisation informelle autour de l'eau et du foncier garantissant aux exploitants travailler les terres publiques. Il s'agit de marchés parallèles non reconnus où la terre et l'eau, souvent liés, se négocient à l'aide de contrats verbaux.

  6. Text of the Agreement of 2 March 1978 between Peru and the Agency for the Application of Safeguards in Connection with the Treaty for the Prohibition of Nuclear Weapons in Latin America and the Treaty on the Non-Proliferation of Nuclear Weapons

    International Nuclear Information System (INIS)

    The text of the Agreement of 2 March 1978 between Peru and the Agency for the application of safeguards in connection with the Treaty for the Prohibition of Nuclear Weapons in Latin America and the Treaty on the Non-Proliferation of Nuclear Weapons is reproduced in this document for the information of all Members. The Agreement entered into force, pursuant to Article 24, on 1 August 1979.

  7. Résilience organisationnelle rebondir face aux turbulences

    CERN Document Server

    Koninckx, Guy

    2010-01-01

    Toutes les organisations traversent des turbulences et des crises. Ces situations conduisent à des pertes de repères et de sens. Les identités ne sont pas épargnées. Dans de telles circonstances, comment rebondir ? Quels moyens mettre en oeuvre pour favoriser la résilience, cette capacité à faire face à l'adversité ? Les auteurs présentent ici le cadre conceptuel de la résilience, différents modèles, une démarche opérationnelle et un ensemble d'outils appropriés. Le modèle CIRERO permet de positionner les organisations sur les trajectoires de résilience. Des stratégies particulières sont recommandées en fonction des situations de crise. Toute personne amenée à mettre en place des conditions favorables à l'émergence de la résilience trouvera, dans ce livre, un guide, une " boîte à outils " et une abondante source d'informations constituées par des retours d'expériences et des études de cas d'organisations amenées à affronter de sérieux bouleversements.

  8. Lutte contre les cerscosporioses du bananier aux Antilles françaises : Banatrace, un système d'information géographique multi-acteurs pour la gestion et la traçabilité des épandages aériens Fighting banana sigatoka diseases in the French West Indies : Banatrace, a multi actors geographic information system for the management and the traceability of aerial application

    Directory of Open Access Journals (Sweden)

    DUMAS, Marine ; LABBÉ, Sylvain

    2011-06-01

    Full Text Available Comment un système d’information géographique peut-il aider à améliorer la fiabilité des traitements aériens contre les maladies fongiques du bananier tout en réduisant leur impact environnemental ? Des réponses aux Antilles françaises avec l’outil informatique multi-acteurs Banatrace, conçu pour aider les gestionnaires à répondre aux différents besoins de traçabilité imposée par la réglementation récente sur les épandages aériens.«Banatrace» is an information system integrating the European rules and regulations relative to the aerial spraying of pesticide over the banana plantations. It helps to the fight against the cercosporia contamination in the French West Indies. This tool aims to fulfill the information needed by the different parties involved in this process: user manager, planters, aerial treatment companies, planters’ cooperatives and administration. It includes DBMS and GIS functionalities in order to program the treatments and to record all events, leading to a better traceability. Moreover carrying out treatment management, it contributes to improve people security and environment protection.

  9. Que peut nous apprendre le courant de la Corporate Social Responsiveness sur les démarches de développement durable des entreprises contemporaines

    OpenAIRE

    Daudigeos, Thibault; Acquier, Aurélien; Valiorgue, Bertrand

    2010-01-01

    Working paper serie RMT (WPS 10-10) , 34 p La recherche gestionnaire dans le champ „Business & Society‟ souffre de sa faible prise en compte des enjeux organisationnels et managériaux associés auxmarches d‟entreprises en matière de responsabilité sociale et de développement durable. C‟est précisément ce constat qui, dans le courant des années 1970, a été le point de départ d‟un programme de recherche sur la Corporate Social Responsiveness au sein de la Harvard Business School aux Etats-...

  10. Les rebuts de la société de marché : toxicomanes, psychopathes, sans-abri dans les prisons de l’Amérique

    OpenAIRE

    Loïc Wacquant

    2003-01-01

    Toxicomanes, malades mentaux, sans-abri : l’incurie des services sociaux et médicaux aux Etats-Unis garantit que ces trois catégories se retrouvent chaque année plus nombreuses derrière les barreaux, la prison servant de dépotoir aux déchets humains d’une société de plus en plus soumise au diktat du marché. Leur sort offre ainsi une vérification expérimentale tragique à l’hypothèse du lien causal et fonctionnel entre le dépérissement de l’Etat social et la prospérité de l’Etat pénal.Toxicóman...

  11. Penser aux/les limites de nos limites

    Directory of Open Access Journals (Sweden)

    Jacques Lévy

    2010-12-01

    Full Text Available Le mot « frontière » a beaucoup de succès, dans son sens propre mais plus encore comme métaphore d’une multitude de réalités qui ont à voir avec les limites, c’est-à-dire avec notre propension à découper le monde en objets séparables. Mais on constate une grande indétermination entre concept et métaphore et un usage trop facile de mélanges entre ceux-ci. Il faut donc d’abord admettre que la matérialité n’est qu’une des composantes de notre monde, mais que l’immatériel n’est pas l’irréel, le simulé ou le métaphorique. Après un détour par une théorie des limites et ses limites et une distinction entre le topographique (continu et le topologique (discontinu appliquée à l’intérieur et aux limites d’une aire, deux exemples sont développés qui visent à montrer que, si l’on trouve des frontières, ce n’est pas forcément là où on les attend et que l’appréciation juste de la place des frontières suppose la prise en compte de bien d’autres considérations que la seule limitation volontaire et brutale du franchissement d’une ligne imaginaire tracée au sol.Think about limits and the limits of our limitsThe word “boundary” has been very successful in its literal sense but even more so as a metaphor of a multitude of realities involving limits, that is, with regards to our tendency to divide the world into separable objects. However, one can observe a considerable uncertainty between the concept and the metaphor and an utilisation too easy of various mixtures of them. It becomes necessary therefore to first admit that materiality is only one of the components of our world whilst the immaterial is not unreal, simulated or metaphoric. After a detour consisting of examining a theory of limits and its limits and making the distinction between the topographic (continuous and the topologic (discontinuous applied to the interior and the limits of an area, two examples are developed which aim to

  12. Comportement de frittés et de films d'oxyde de titane en présence d'atmosphères gazeuses, hors équilibre thermodynamique, en régime stationnaire; application aux capteurs résistifs d'oxygène

    Science.gov (United States)

    Jerisian, R.; Gautron, J.; Loup, J. P.

    1992-04-01

    mesurée, en régime stationnaire, en fonction du débit des gaz ; ces atmosphères sont d'autant plus éloignées de l'équilibre que le débit est élevé. On montre que les variations de résistance des échantillons, en fonction du débit, dépendent du domaine de pression partielle d'oxygène, de la température et de la structure des échantillons. La sensibilité à l'oxygène est accrue par un morphologie qui, à l'échelle macroscopique, favorise la diffusion de l'oxygène et qui, à l'échelle microscopique, permet la création de barrière de potentiel aux joints de grains. En milieu oxydant, à 870 K, un mécanisme de volume qui met en jeu la cinétique des échanges avec la phase gazeuse, détermine une variation de résistance en P_{O_2}^{1/4}/P_{CO}^{1/2}. En milieu réducteur, à la même température, la non-stœchiométrie en volume de l'oxyde est fixée par le couple redox CO/CO2 comme si l'atmosphère était en équilibre thermodynamique. Mais l'abondance des électrons de conduction, favorise la chimisorption de l'oxygène qui contrôle la résistance des couches selon une loi en P_{O_2}^{1/2} en créant des barrières de potentiel à la surface des grains. Des modèles, permettant le calcul du potentiel de surface ainsi que du taux de recouvrement, sont développés ; la comparaison des modèles indique une diffusion relativement lente des lacunes d'oxygène à 870 K. A 1 100 K, l'atmosphère tend à être à l'équilibre thermodynamique : i) en atmosphère oxydante, tous les capteurs sont en équilibre avec la pression partielle d'oxygène ; ii) en atmosphère réductrice, dominée par le couple redox CO/CO2, seules les couches sont sensibles à la présence de traces d'oxygène.

  13. La panique pédophile aux États-Unis et en France

    Directory of Open Access Journals (Sweden)

    Kristen Zgoba

    2005-09-01

    Full Text Available Durant la première moitié des années 1990, les États-Unis traversèrent ce qui peut être appelé une crise liée aux crimes sexuels. Ceci entraîna le passage de législations spécifiques destinées à adresser ce qui était perçu par le public comme un problème social de grande envergure. Durant la seconde moitié des années 1990, l’Europe (principalement l’Angleterre, la Belgique, les Pays-Bas, la France, et l’Allemagne se trouva dans la même situation que les États-Unis. Là aussi des législations étaient promulguées, de nature variée, afin de procurer des réponses à la panique du public. Selon une approche sociologique constructionniste, une panique morale prend place lorsque certains types de comportements ou d’individus apparaissent comme posant un extrême danger pour le tissu social. Étant donné que la pédophilie représente symboliquement l’ultime horreur dans la catégorie des crimes sexuels en ce que des enfants en sont les victimes, la présente contribution propose une grille d’analyse constructionniste afin d’estimer l’existence potentielle d’une crise morale liée à ce crime. Cet article pose les bases d’une démarche continue d’analyse du phénomène pédophile selon la grille théorique des paniques morales.The Pedophilia Panic in France and in the United States - In the early and mid-1990s, the United States experienced what could be called a sex crime crisis. This led to the passing of specific legislations aimed at addressing what was perceived by the public at large as a major social problem. In the mid- and late-1990s, Europe (mainly Britain, Belgium, the Netherlands, France, and Germany found itself in the same predicament as the US. There too, legislations were passed, varying in their nature, in order to provide the public with answers to its panic. According to a social constructionist approach, a moral panic occurs when certain types of behaviors or individuals are thought to

  14. The March 2011 Japan tsunami

    OpenAIRE

    Tappin, Dave

    2011-01-01

    The March 11th 2011 Tohoku-iki earthquake was the fifth largest on Earth in the last 50 years, it created one of the most devastating tsunamis in history. Dave Tappin describes the background to the tsunami and its impact based on his research on tsunamis and visits to Japan over the past three months.

  15. Electric power monthly, March 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-20

    This report for March 1995, presents monthly electricity statistics for a wide audience including Congress, Federal and State agencies, the electric utility industry, and the general public. The purpose of this publication is to provide energy decisionmakers with accurate and timely information that may be used in forming various perspectives on electric issues that lie ahead.

  16. Monthly energy review: March 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    This is the March report by the Energy Information Administration. The contents of the report include an article on current and potential markets for alternative-fuel vehicles, an energy overview, and data on energy consumption, petroleum, natural gas, oil and gas resource development, coal, electricity, nuclear energy, energy prices, and international energy. 32 figs., 88 tabs.

  17. La résistance des insectes aux insecticides : problématique et enjeux en Afrique centrale

    OpenAIRE

    Brévault, Thierry; Beyo, Jacques; Nibouche, Samuel; Vaissayre, Maurice

    2003-01-01

    Les observations indiquent que des cas de résistance aux insecticides sont apparus dans la zone des savanes d'Afrique centrale chez plusieurs espèces de ravageurs des cultures cotonnière et maraîchères. La résistance aux insecticides de la famille des pyréthrinoïdes mise en évidence chez la noctuelle, Helicoverpa armigera (Hübner), en Afrique de l'ouest semble désormais concerner l'Afrique centrale. Au Cameroun, les résultats obtenus au laboratoire confirment l'apparition d'une résistance aux...

  18. A COTS-based single board radiation-hardened computer for space applications; Monocarte ordinateur durcie aux radiations utilisant des COTS et destinee aux applications spatiales

    Energy Technology Data Exchange (ETDEWEB)

    Stewart, S.; Hillman, R.; Layton, P.; Krawzsenek, D. [Space Electronics Inc., San Diego, CA (United States)

    1999-07-01

    There is great community interest in the ability to use COTS (Commercial-Off-The-Shelf) technology in radiation environments. Space Electronics, Inc. has developed a high performance COTS-based radiation hardened computer. COTS approaches were selected for both hardware and software. Through parts testing, selection and packaging, all requirements have been met without parts or process development. Reliability, total ionizing dose and single event performance are attractive. The characteristics, performance and radiation resistance of the single board computer will be presented. (authors)

  19. Handling Uncertainty in Accessing Petroleum Exploration Data Traitement de l'incertain dans l'accès aux données d'exploration pétrolière

    Directory of Open Access Journals (Sweden)

    Chung P. W. H.

    2006-11-01

    Full Text Available This paper discusses the role of uncertainty in accessing petroleum exploration databases. Two distinct forms of uncertainty are identified : the uncertainty in the user's requirements, and the uncertainty in the data held. A general mechanism is described which is applicable to both. Cet article traite du rôle de l'incertitude dans l'accès aux bases de données d'exploration pétrolière. Deux sortes distinctes d'incertitudes sont identifiées : l'incertitude au niveau des requêtes de l'utilisateur et l'incertitude attachée aux données stockées. Nous décrivons un mécanisme général qui s'applique à ces deux types d'incertitude.

  20. Marche forcée vers le marché

    Directory of Open Access Journals (Sweden)

    Denise Pumain

    2000-10-01

    Full Text Available Le WEM, serait-ce l'éternuement de cet été ? Foin de rhume ! Le World Education Market ou marché mondial de l'éducation qui s'est tenu à Vancouver à la fin du mois de mai a provoqué une prise de conscience, et pour certains, comme disent les ados, une prise de tête ! Ce n'est pas tant l'irruption du marché dans le domaine de l'éducation qui fait problème. Ne nous cachons pas que la mise à l'écran de nos savoirs ne date pas de l'électronique : le livre aussi a ses foires, les manuels procurent...

  1. Syst\\`emes interactifs sensibles aux \\'emotions : architecture logicielle

    CERN Document Server

    Clay, Alexis

    2007-01-01

    We propose a software architecture for interactive systems which allows integrating the user's emotion. Emotion can be involved in interaction at several levels. In our application case - ballet dance - emotions is explicitely manipulated by the interactive system to produce emotion-wise output. Our architecture model to develop emotion-wise applications is based on the PAC-Amodeus model. We add a branch to this model, divided into three components: Data capture, analysis and cue extraction, and finally interpretation of those cues. We show the different data flows between this architecture's components depending on the entry point of the emotion branch within the system. We then illustrate our model by describing our application case: capturing a ballet dancer's movement to extract the emotions he expresses and use these emotions to generate graphical content that is displayed on stage.

  2. Un outil de prise de données sur une image numérisée et son utilité dans les études relatives aux poissons : exemple d'une application concrète en morphométrie

    Directory of Open Access Journals (Sweden)

    SAGNES P.

    1995-04-01

    Full Text Available Une configuration informatique polyvalente en analyse d'images est présentée. L'accent est mis sur une application morphométrique par l'intermédiaire d'un exemple concret chez les poissons, d'où ressortent les principales qualités du dispositif, soit la précision et la rapidité de collecte et de stockage des données. Des applications possibles de cet outil à des domaines d'étude précis sont également suggérées.

  3. Application de la spectroscopie à l'étude de la planète Mars et à la recherche de planètes extrasolaires :
    caractérisation des spectromètres de l'instrument SPICAM-Light embarqué à bord de la mission spatiale Mars-Express ; développement et optimisation du spectromètre astronomique EMILIE dédié aux mesures de vitesses radiales stellaires.

    OpenAIRE

    Guibert, Stéphane

    2005-01-01

    Cette thèse présente trois techniques innovantes de spectrométrie, l'une en domaine infrarouge, l'autre en visible, et la troisième en ultraviolet. Deux d'entres elles sont utilisées par l'instrument Spicam-Light à bord de la sonde spatiale Mars-Express pour l'étude de l'atmosphère de Mars. La troisième concerne la spectrométrie à haute résolution depuis le sol, et est dédiée aux mesures de vitesses radiales stellaires pour la recherche de planètes extrasolaires à l'Observatoire de Haute Prov...

  4. Toibibou, Ali Mohamed. — La transmission de l’Islam aux Comores

    OpenAIRE

    Hecquet, Vincent

    2012-01-01

    Ce livre décrit les institutions musulmanes aux Comores à partir d’une étude centrée sur la ville de Mbéni, qui est l’un des principaux centres religieux de l’archipel. Aux Comores, la quasi-totalité des 706 000 habitants partage la foi musulmane depuis que celle-ci y a été propagée entre le XIe et le XVIe siècles. Située sur la côte nord-est de la Grande-Comore, Mbéni est une ville de 6 500 habitants à environ soixante-quinze kilomètres de Moroni. Au XIXe siècle, deux étudiants originaires d...

  5. Le Carnaval de Schignano : un dernier salut aux émigrants

    Directory of Open Access Journals (Sweden)

    Cristina Del Biaggio

    2011-05-01

    Full Text Available Pour arriver à Schignano, il faut passer par una cürva al giazz e una cürva al suu [Un virage dans la glace et un virage au soleil], comme disent les mots en dialecte d’une récente chanson écrite par Davide Van De Sfroos, compositeur-interprète de la région. C’est dans ce petit hameau de la Vallée d’Intelvi, au-dessus du Lac de Côme, que, tous les ans, le carnaval anime le village. Une fête populaire spontanée, sans règles écrites, ni lois, qui survit grâce aux habitants qui l’animent, aux ar...

  6. Résistance génétique des petits ruminants aux helminthes en Afrique

    OpenAIRE

    Baker, R.L.

    1997-01-01

    Certaines races locales de ruminants présentent des aptitudes génétiques particulières à résister et/ou à tolérer les parasites internes. Cet article passe en revue les données encore éparses existant sur les variabilité intra et inter-races de la résistance aux helminthes des bovins, ovins et caprins, et décrit plus précisément les projets de recherches de l’International Livestock Research Institute (ILRI) en matière de résistance génétique aux nématodes gastro-intestinaux des petits rumina...

  7. Natural gas monthly, March 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The March 1998 edition of the Natural Gas Monthly highlights activities, events, and analyses associated with the natural gas industry. Volume and price data are presented for natural gas production, distribution, consumption, and interstate pipeline activities. Producer-related activities and underground storage data are also reported. This report also features an article on the correction of errors in the drilling activity estimates series, and in-depth drilling activity data. 6 figs., 28 tabs.

  8. Monthly energy review, March 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This is an overview of the March 1997 energy statistics by the Energy Information Administration. The Contents of the report include an update on the effects of Title IV of the Clean Air Act Amendments of 1990 on electric utilities, an energy overview, US energy production, energy consumption, trade stocks and prices for petroleum, natural gas, oil and gas resource development, coal, electricity, nuclear energy, energy prices, and international energy. 37 figs., 60 tabs.

  9. T0002 / MilliNewton / Erreurs dues à l'orientation et aux forces latérales

    OpenAIRE

    Maeder, Thomas

    2004-01-01

    Le capteur de force MilliNewton est sensible aux forces latérales, dans le sens longitudinal à la poutre. Le degré de sensibilité du capteur à ces forces dépend essentiellement de la taille de la bille et de la longueur de la poutre. En revanche, la sensibilité aux forces latérales perpendiculaires à la poutre est très faible.

  10. Report of transparency and nuclear safety 2007 CEA Fontenay aux Roses

    International Nuclear Information System (INIS)

    This report presents the activities of the CEA Center of Fontenay aux roses for the year 2007. After many years of decommissioning and dismantling of nuclear installations, the Center is now devoted (since 2005) to the development of research programmes on biology and biomedical technologies. The actions concerning the safety, the radiation protection, the significant events, the release control and the environmental impacts and the wastes stored on the center are discussed. (A.L.B.)

  11. Disruptions in AUX1-Dependent Auxin Influx Alter Hypocotyl Phototropism in Arabidopsis

    Institute of Scientific and Technical Information of China (English)

    Bethany B.Stone; Emily L.Stowe-Evans; Reneé M.Harper; R.Brandon Celaya; Karin Ljung; G(o)ran Sandberg; Emmanuel Liscum

    2008-01-01

    Phototropism represents a differential growth response by which plant organs can respond adaptively to changes in the direction of incident light to optimize leaf/stem positioning for photosynthetic light capture and root growth orientation for water/nutrient acquisition. Studies over the past few years have identified a number of components in the signaling pathway(s) leading to development of phototropic curvatures in hypocotyls. These include the phototropin photoreceptors (phot1 and phot2) that perceive directional blue-light (BL) cues and then stimulate signaling,leading to relocalization of the plant hormone auxin, as well as the auxin response factor NPH4/ARF7 that responds to changes in local auxin concentrations to directly mediate expression of genes likely encoding proteins necessary for development of phototropic curvatures. While null mutations in NPH4/ARF7 condition an aphototropic response to unidirectional BL, seedlings carrying the same mutations recover BL-dependent phototropic responsiveness if coirradiated with red light (RL) or pre-treated with either ethylene. In the present study, we identify second-site enhancer mutations in the nph4 background that abrogate these recovery responses. One of these mutations-map1 ((m)odifier of (a)rf7 (p)henotypes (1))-was found to represent a missense allele of AUX1-a gene encoding a high-affinity auxin influx carrier previously associated with a number of root responses. Pharmocological studies and analyses of additional aux1 mutants confirmed that AUX1 functions as a modulator of hypocotyl phototropism. Moreover, we have found that the strength of dependence of hypocotyl phototropism on AUX1-mediated auxin influx is directly related to the auxin responsiveness of the seedling in question.

  12. Le Marché comme conquête sociale, les enjeux du marché dans les stratégies de survie des familles de l’Europe préindustrielle

    Directory of Open Access Journals (Sweden)

    Laurence Fontaine

    2012-01-01

    Full Text Available Après avoir souligné que la pauvreté est un risque qui concernait 70 à 80% de la population de l’Europe préindustrielle, l’article met en évidence le rôle du marché dans les stratégies de survie des familles. Il s’attache ensuite à la finance informelle qui fournit les capitaux nécessaires à l’entrée dans le marché et montre que le petit peuple, et les femmes en particulier, en sont des acteurs autant comme prêteurs, qu’emprunteurs que comme intermédiaires. Il montre ensuite que si le statut juridique et les rôles imposés aux femmes leur ferment quantité d’activités, le marché  leur a donné un moyen légal de conquérir des espaces de liberté. Enfin, il met en évidence la progressive exclusion, à partir du XVIIIe siècle, des plus pauvres de la plupart des marchés auxquels ils avaient traditionnellement accès.

  13. La grotte de la Chauve-Souris à Donzère (Drôme, France) : L'environnement holocène par la méthode quantitative appliquée aux microvertébrés. Essai de définition et application

    OpenAIRE

    Jeannet, Marcel; Vital, Joël

    2009-01-01

    International audience The « Chauve-Souris » cave at Donzére (Drôme, France). Holocene environment by quantitative method applied on microvertebrates. Definition and application attempt.- The study of microfauna collected by one of us (J.V.) during the excavation of the « Chauve-Souris » cave (Donzère, Drôme, France) widely covers the second half of Holocene and chiefly final Neolithic and final Bronze Age. Species are relatively common except the Iberic Vole (Microtus cabrerae Thomas, 190...

  14. Vers l’analyse de la gouvernance territoriale du périurbain : réflexions, questions et démarches

    OpenAIRE

    UBILLA-BRAVO, Gerardo

    2016-01-01

    Cette communication vise d’abord à exposer les premiers enjeux que la thèse souligne au niveau de la gouvernance territoriale dans les aires périurbaines des villes de taille intermédiaire subrégionale. Pour cela, nous proposons un modèle de la démarche de la recherche contenant : la problématique par système de questions, les hypothèses liées aux questions de recherche et la méthodologie gén&eacu...

  15. Photovoltaic concentrator application experiment, Phase I: a 150 KW photovoltaic concentrator power system for load-center applications with feedback into the utility grid. Final report, June 1, 1978--March 31, 1979

    Energy Technology Data Exchange (ETDEWEB)

    Noel, G T; Alexander, G; Stember, L H; Stickford, G H; Smail, H E; Broehl, J H; Carmichael, D C

    1979-04-01

    A 150-kW-peak concentrator-type photovoltaic power system to supply a multiple building load application in the Columbus, Ohio area was designed and analyzed by a Battelle-led team. The system will operate in parallel with the utility grid (which provides backup power) to supply either or both of two service/commercial buildings and will feed surplus power into the utility grid. The array consists of fifteen 10-kW carousel-mounted subarrays which are two-axis tracking. The subarrays each consist of 40 passively cooled concentrating modules which incorporate a primary parabolic trough reflector and a secondary compound-elliptic concentrator to achieve a geometric concentration ratio of approx. 26. The power conditioning subsystem is microprocessor controlled, with maximum-power-point tracking and automatic control capabilities. The system performance analysis indicates that the system will supply approximately 147,000 kWh/year to the primary load and an additional 55,000 kWh/year to the utility grid, in the single-load operational mode. The system design and the daily and seasonal match of system output with the load are described in detail. Plans are also discussed for installation and for operational evaluations of performance, economics, and institutional issues.

  16. Hanford environmental analytical methods (methods as of March 1990). Appendix A3-R

    Energy Technology Data Exchange (ETDEWEB)

    Goheen, S.C.; McCulloch, M.; Daniel, J.L.

    1993-05-01

    Techniques in use at the Hanford Reservation as of March, 1990 for the analysis of liquids and radioactive effluents are described. Limitations and applications of the techniques are included. This report is Appendix A3-R.

  17. Banca March - Palma de Mallorca

    Directory of Open Access Journals (Sweden)

    Lafita Pardo, F.

    1977-10-01

    Full Text Available This building constitutes the 1st stage of the overall project and houses the bank offices, with: cultural part, homes for wardens and apartments for organization staff. The 2nd stage —which will be built later— will include: shop premises, offices, hotel use, homes and apartments. The block has been arranged in an open style, definitely benefiting users and for the town generally. The article describes the urbanistic solution adopted, the layout and justification of each floor, as well as accesses and circulation, outdoor and inside finishing of the 1st stage of the building, all intended for the Banca March.No disponible

  18. Séparation par membranes organiques : applications et prévisions de marché dans l'industrie pétrolière et pétrochimique Separation by Organic Membranes: Applications and Market Outlook in the Petroleum and Petrochemical Industry

    Directory of Open Access Journals (Sweden)

    Arlie J. P.

    2006-11-01

    Full Text Available Les principales applications des membranes en séparation portent aujourd'hui sur la perméation gazeuse : récupération de l'hydrogène sous haute pression en raffinage (hydrocraquage, en pétrochimie (synthèse de l'ammoniac, enrichissement du gaz de synthèse; traitement du gaz naturel (élimination des gaz acides, récupération du CO2 pour récupération assistée, extraction de l'hélium. En matière de purification de l'eau de mer, la technique d'osmose inverse est limitée à des capacités de 10 000 m3/j pour des raisons d'économie d'échelle. Le marché des membranes est en forte croissance, 10 % et plus en moyenne annuelle, essentiellement pour les applications déjà implantées industriellement, qui déplacent ou complètent par association les technologies classiques de séparation. The principal applications of separation membranes now have to do with gaseous permeation such as high-pressure hydrogen recovery in refining (hydrocracking and in petrochemistry (ammonia synthesis, enrichment of synthetic gas; the processing of natural gas (sour-gas removal, CO2 recovery for enhanced recovery, helium extraction. For seawater purification, the technique of reverse osmosis is limited to capacities of 10 000 m3/d for reasons of economy of scale. The market for membranes is increasing strongly, at a rate of 10% and more for the yearly average, mainly for applications that are already industrially installated and that are moved or completed by the adding on of conventional separation technologies.

  19. Développement d'immunoessais associés aux électrodes sérigraphiées: des particules superparamagnétiques aux nanobodies

    OpenAIRE

    Patris, Stéphanie

    2014-01-01

    Cette thèse a pour vocation de contribuer au développement de différents immunocapteurs ampérométriques associés aux électrodes sérigraphiées (SPE). Les immunocapteurs sont des dispositifs simples associant un anticorps ou un antigène qui assurent la sélectivité à un transducteur (ici une SPE) ;ce dernier transforme la liaison anticorps/antigène en un signal mesurable (ici ampérométrique).Le travail est divisé en deux volets principaux.Le premier est consacré à la mise en œuvre de différents ...

  20. Développement d'immunoessais associés aux électrodes sérigraphies: des particules superparamagnétiques aux nanobodies

    OpenAIRE

    Patris, Stéphanie

    2014-01-01

    Cette thèse a pour vocation de contribuer au développement de différents immunocapteurs ampérométriques associés aux électrodes sérigraphiées (SPE). Les immunocapteurs sont des dispositifs simples associant un anticorps ou un antigène qui assurent la sélectivité à un transducteur (ici une SPE) ;ce dernier transforme la liaison anticorps/antigène en un signal mesurable (ici ampérométrique). Le travail est divisé en deux volets principaux. Le premier est consacré à la mise en œuvre de dif...

  1. Les monuments commémoratifs dédiés aux universitaires et aux savants : Entre espace communautaire et espace public

    OpenAIRE

    Hottin, Christian

    1999-01-01

    Tout autant que les hommes politiques ou les gens de lettres, les universitaires et les savants ont été statufiés depuis le XIXe siècle : la première période de la troisième République marque l'apogée de ce phénomène. Lorsqu'elles étaient en bronze, ces œuvres, comme les autres, n'ont pas échappé aux sélections opérées pendant l'Occupation. Enfin, de nouvelles effigies d'hommes de science ont été exécutées après 1945 et, bien que ralenti, ce mouvement de commémoration se poursuit de nos jours...

  2. Fictitious domain methods for elliptic problems with general boundary conditions with an application to the numerical simulation of two phase flows; Methodes de domaine fictif pour des problemes elliptiques avec conditions aux limites generales en vue de la simulation numerique d'ecoulements diphasiques

    Energy Technology Data Exchange (ETDEWEB)

    Ramiere, I

    2006-09-15

    This work is dedicated to the introduction of two original fictitious domain methods for the resolution of elliptic problems (mainly convection-diffusion problems) with general and eventually mixed boundary conditions: Dirichlet, Robin or Neumann. The originality lies in the approximation of the immersed boundary by an approximate interface derived from the fictitious domain Cartesian mesh, which is generally not boundary-fitted to the physical domain. The same generic numerical scheme is used to impose the embedded boundary conditions. Hence, these methods require neither a surface mesh of the immersed boundary nor the local modification of the numerical scheme. We study two modelling of the immersed boundary. In the first one, called spread interface, the approximate immersed boundary is the union of the cells crossed by the physical immersed boundary. In the second one, called thin interface, the approximate immersed boundary lies on sides of mesh cells. Additional algebraic transmission conditions linking both flux and solution jumps through the thin approximate interface are introduced. The fictitious problem to solve as well as the treatment of the embedded boundary conditions are detailed for the two methods. A Q1 finite element scheme is implemented for the numerical validation of the spread interface approach while a new cell-centered finite volume scheme is derived for the thin interface approach with immersed jumps. Each method is then combined to multilevel local mesh refinement algorithms (with solution or flux residual) to increase the precision of the solution in the vicinity of the immersed interface. A convergence analysis of a Q1 finite element method with non-boundary fitted meshes is also presented. This study proves the convergence rates of the present methods. Among the various industrial applications, the simulation on a model of heat exchanger in french nuclear power plants enables us to appreciate the performances of the fictitious domain

  3. The ARF, AUX/IAA and GH3 gene families in citrus: genome-wide identification and expression analysis during fruitlet drop from abscission zone A.

    Science.gov (United States)

    Xie, Rangjin; Pang, Shaoping; Ma, Yanyan; Deng, Lie; He, Shaolan; Yi, Shilai; Lv, Qiang; Zheng, Yongqiang

    2015-12-01

    Completion of the whole genome sequencing of citrus enabled us to perform genome-wide identification and functional analysis of the gene families involved in agronomic traits and morphological diversity of citrus. In this study, 22 CitARF, 11 CitGH3 and 26 CitAUX/IAA genes were identified in citrus, respectively. Phylogenetic analysis revealed that all the genes of each gene family could be subdivided into three groups and showed strong evolutionary conservation. The GH3 and AUX/IAA gene families shrank and ARF gene family was highly conserved in the citrus genome after speciation from Arabidopsis thaliana. Tissue-specific expression profiles revealed that 54 genes were expressed in at least one tissue while just 5 genes including CitARF07, CitARF20, CitGH3.04, CitAUX/IAA25 and CitAUX/IAA26 with very low expression level in all tissues tested, suggesting that the CitARF, CitGH3 and CitAUX/IAA gene families played important roles in the development of citrus organs. In addition, our data found that the expression of 2 CitARF, 4 CitGH3 and 4 AUX/IAA genes was affected by IAA treatment, and 7 genes including, CitGH3.04, CitGH3.07, CitAUX/IAA03, CitAUX/IAA04, CitAUX/IAA18, CitAUX/IAA19 and CitAUX/IAA23 were related to fruitlet abscission. This study provides a foundation for future studies on elucidating the precise role of citrus ARF, GH3 and AUX/IAA genes in early steps of auxin signal transduction and open up a new opportunity to uncover the molecular mechanism underlying citrus fruitlet abscission. PMID:25982744

  4. Exposition aux dispositifs d'éclairage scénique : risque pour la santé des professionnels du spectacle vivant ou enregistré

    OpenAIRE

    Salsi, Serge; Barlier-Salsi, Annick

    2013-01-01

    La directive européenne 2006/25/CE, relative à l'exposition des travailleurs aux rayonnements optiques, prévoit l'évaluation des risques des situations de travail. Elle est particulièrement importante dans l'industrie des arts du spectacle où des expositions intentionnelles à des projecteurs peuvent être exigées pendant des périodes de l'ordre de 8 heures par jour. L'objectif de la présente étude était de fournir aux éclairagistes des informations, relatives aux risques associés aux projecteu...

  5. Loi constitutive chimioplastique pour le beton expose aux hautes temperatures

    Science.gov (United States)

    Hammoud, Rabah

    degradation of exothermic origin. This experimental program puts emphasis on the fragile nature of the preheated concrete and demonstrates the non-applicability of two failure criteria often used in engineering calculation. An alternative is proposed and well-tested. Indeed, exposing the concrete to high temperature results in irreversible loss of stiffness as well as a loss of decohesion strength. These losses are, typically, expressed through semi-empirical relationships of the mechanical properties with temperature. Unfortunately, these relationships are inadequate because the direct impact of this degradation, on the macroscopic scale, can result in a dependency relationship between the elastic properties and the hydrates mass. Therefore, unlike traditional methods using conventional elasto-plastic models and adjusting certain parameters with local temperature, the proposed constitutive law that incorporates a function of dehydration similar to the softening index in chemo-plastics gives good results. An Etse and Willam similar criterion is used and modified for the occasion. Hardening and softening mechanisms are then needed to expand and contract the loading surface for defining the strength of the concrete on a wide range of dehydration processes. The direction and magnitude of a permanent deformation, core of the inelastic domain, are defined through the development of non-associated chemoplastic potential and new curve of ductility. The influence of hydrostatic pressure (dilatancy) and dehydration on the concrete behavior are taken into account in our model. The model is implemented in the Matlab(c) code. Strains and stresses generated in the concrete are now accurately predicted. To illustrate the capabilities of the developed model to predict the complex behavior of concrete exposed to high temperature, simulations are performed through numerical loading paths scenarios. The model is able to accurately reproduce all the experimental data.

  6. Characterization of the deviation of the ideality of concentrated electrolytic solutions: plutonium 4 and uranium 4 nitrate salts study; Contribution a la caracterisation de l'ecart a l'idealite des solutions concentrees d'electrolytes: application aux cas de nitrates de plutonium (4) et d'uranium (4)

    Energy Technology Data Exchange (ETDEWEB)

    Charrin, N

    2000-07-01

    the experimental acquisition of binary data for plutonium(IV) and uranium(IV) nitrates, emphasizing the importance of preparing the mixtures studied: their atypical characteristics - very high actinide concentrations and low acidity - make them unique in the literature. Coupling the water activity measurements with density measurements provides a means of describing the physicochemical properties of fictive Pu(NO{sub 3}){sub 4} and U(NO{sub 3}){sub 4} binary solutions, which are then compared with those of thorium(IV) nitrate. The final chapter describes the application of the binary data. The characteristic parameters of Pu(NO{sub 3}){sub 4} and U(NO{sub 3}){sub 4} used in Pitzer's model and in specific interaction theory are evaluated. The simple solution concept is then applied to density calculations for quaternary Pu(NO{sub 3}){sub 4}/U(NO{sub 3}){sub 4}/HNO{sub 3}/H{sub 2}O mixtures, demonstrating that the density can be predicted with very high precision. (author)

  7. Chemical composition and geologic history of saline waters in Aux Vases and Cypress Formations, Illinois Basin

    Science.gov (United States)

    Demir, I.; Seyler, B.

    1999-01-01

    Seventy-six samples of formation waters were collected from oil wells producing from the Aux Vases or Cypress Formations in the Illinois Basin. Forty core samples of the reservoir rocks were also collected from the two formations. Analyses of the samples indicated that the total dissolved solids content (TDS) of the waters ranged from 43,300 to 151,400 mg/L, far exceeding the 35,400 mg/mL of TDS found in typical seawater. Cl-Br relations suggested that high salinities in the Aux Vases and Cypress formation waters resulted from the evaporation of original seawater and subsequent mixing of the evaporated seawater with concentrated halite solutions. Mixing with the halite solutions increased Na and Cl concentrations and diluted the concentration of other ions in the formation waters. The elemental concentrations were influenced further by diagenetic reactions with silicate and carbonate minerals. Diagenetic signatures revealed by fluid chemistry and rock mineralogy delineated the water-rock interactions that took place in the Aux Vases and Cypress sandstones. Dissolution of K-feldspar released K into the solution, leading to the formation of authigenic illite and mixed-layered illite/smectite. Some Mg was removed from the solution by the formation of authigenic chlorite and dolomite. Dolomitization, calcite recrystallization, and contribution from clay minerals raised Sr levels significantly in the formation waters. The trend of increasing TDS of the saline formation waters with depth can be explained with density stratification. But, it is difficult to explain the combination of the increasing TDS and increasing Ca/Na ratio with depth without invoking the controversial 'ion filtration' mechanism.

  8. Report on SRS activities to March, 1981

    International Nuclear Information System (INIS)

    In this first Annual Report on synchrotron radiation research and related activities since the completion of the storage ring (the SRS) at Daresbury Laboratory a summary is given of progress on the storage ring itself, on beamlines, experimental stations, data acquisition and processing facilities and on the build-up of ancillary laboratories and equipment. In appendices a bibliography of synchrotron radiation research publications from March 1977 to March 1981 and a cumulative list of research grants and agreements approved by the SRFC from March 1977 to March 1981 are given. (U.K.)

  9. Conference - Découvrez notre région - Aux bornes de Genève

    CERN Multimedia

    Staff Association

    2016-01-01

      Les premières bornes-frontière sont posées en 1816 aux confins du royaume de Sardaigne, d’autres feront leur apparition dès 1818 du côté du royaume de France. Deux cents ans plus tard, on retrouve toujours ces pierres, témoins de la naissance du canton et patrimoine partagé des communes genevoises, gessiennes et savoisiennes qui font notre région.  

  10. La conquête de l’Algérie racontée aux enfants

    OpenAIRE

    Guillemette Tison

    2012-01-01

    L’histoire de la conquête de l’Algérie est racontée aux enfants aussi bien dans les manuels que dans les romans. Cet article propose d’examiner comment les années 1827 à 1847 sont restituées dans les ouvrages scolaires et non scolaires, par l’utilisation d’anecdotes récurrentes, par la mise en scène de figures de héros ou de collectivités.

  11. Douleur aux urgences: rôle infirmier et recommandations de bonne pratique

    OpenAIRE

    Buletti, Martina; Vacherand, Virginie; Borloz, Corinne

    2015-01-01

    Dans le contexte des urgences, la douleur représente une problématique de santé importante puisque près de 80% des patients consultent pour cette raison. Depuis de nombreuses années, des études montrent que la prise en charge de la douleur aux urgences est sous-optimale et que la majorité des patients continue à ressentir de la douleur à sa sortie de l’hôpital. L’infirmier ayant un rôle important à jouer dans la prise en charge de la douleur des patients, en particulier dans ce contexte, nous...

  12. Au delà du DSM : les ontologies comme aide aux classifications descriptives psychiatriques ?

    OpenAIRE

    Richard, Marion; Aimé, Xavier; Krebs, Marie-Odile; Charlet, Jean

    2013-01-01

    La caractérisation des pathologies en psychiatrie pose généralement plus de difficultés que dans les autres domaines de la médecine. Les consensus au sujet des critères définissant les pathologies mentales restent minimaux. Dans ce contexte, notre but est de construire une ressource terminologique et ontologique permettant de caractériser les patients résistant aux traitements en particulier dans le contexte de la schizophrénie. Pour cela, nous utiliserons une méthodologie maintenant éprouvée...

  13. Dialogisme et interdiscours : des discours coloniaux aux discours du développement

    OpenAIRE

    Dufour, Françoise

    2007-01-01

    Cet article explore l’articulation des notions de dialogisme et d’interdiscours à partir de l’analyse des reformulations repérables dans le passage des discours coloniaux aux discours du développement. L’analyse d’un corpus authentique de la formation discursive du développement permet de mettre en évidence différents niveaux de négociation avec l’hétérogénéité discursive auxquels l’énonciateur est soumis dans les nominations de l’autre. Les discours du développement interagissent dialogiquem...

  14. François-Ronan DUBOIS (2014), Introduction aux Porn Studies

    OpenAIRE

    Loubradou, Esther

    2015-01-01

    « La pornographie est un exemple typique de ces objets culturels dont le discours public s’empare volontiers sans jamais en produire une connaissance un tant soit peu détaillée » (p. 7). Cette connaissance partielle est pourtant regrettable et par rapport aux débats virulents entre discours anti-pornographiques et discours pro-sexe, la nécessité d’une posture compétente et objective sans perspective de condamnation ou de défense sur la pornographie se fait sentir. François-Ronan Dubois propos...

  15. Fertilisation et sensibilité des cultures de laitue et de tomate aux bioagresseurs

    OpenAIRE

    Julhia, L.; Nicot, Philippe C.

    2014-01-01

    Les producteurs de légumes sont confrontés à de nouveaux défis avec la réduction de l’usage des produits phytosanitaires. Limiter le recours aux moyens de lutte chimique conduit à revisiter les pratiques et à mettre en oeuvre des stratégies globales à moindre risque phytosanitaire. La fertilisation est examinée dans son action sur la santé des plantes et comme levier dans la gestion des bioagresseurs. L’étude porte sur deux cultures légumières majeures en France, en termes de surfaces, la lai...

  16. Le capital-risque aux Etats-Unis dans les technologies de l'information

    OpenAIRE

    Patrice Boivin

    1999-01-01

    Aux États-Unis, les années 1990 consacrent la montée en puissance des fonds de capital-risque comme sources de financement pour les entreprises spécialisées dans les technologies de l'information. Plus précisément, les secteurs des logiciels et des communications reçoivent les montants les plus importants, en raison de leur potentiel de croissance lié au développement exponentiel d'Internet (accroissement des besoins de communication des entreprises et développement du commerce électronique)....

  17. Evaluation of the radiology state at the CEA/Fontenay-aux-Roses and its environment

    International Nuclear Information System (INIS)

    Since 1946 the nuclear installations followed one other at the CEA of Fontenay-aux-Roses still their gradual stop the last ten years, except two installations INB34 and INB73, necessary for the wastes management. Today these installations form the subject of a drainage program. The public opinion is regularly informed on this program since 1999. This document presents the stock of the actions realized since this date: the track keeping of the sites activities impacts on the environment and the actions realized since 1999. (A.L.B.)

  18. Protection sociale et démocratie aux États-Unis

    OpenAIRE

    Ndiaye, Pap

    2000-01-01

    L'assurance et l'assistance sociale firent longtemps l'objet d'un consensus large dans la classe politique et la population américaines, particulièrement notable entre la fin de la Seconde Guerre mondiale et le début des années 1970, en apparaissant comme des piliers d'une démocratie moderne, capable de répondre aux défis posés par l'essor du grand capitalisme industriel. [Premier paragraphe de l'article

  19. L'hostilité aux OGM survit-elle à des produits attractifs ?

    OpenAIRE

    Kassardjian, Elsa; Robin, Stéphane; Ruffieux, Bernard

    2011-01-01

    Nous testons ici les dispositions à payer des consommateurs pour des aliments transgéniques de seconde génération, c'est-à-dire ayant des caractéristiques innovantes attractives pour le consommateur par rapport au produit conventionnel. Nous testons également les dispositions à payer de tels produits lorsqu'ils sont obtenus avec des technologies alternatives aux biotechnologies transgéniques. Les résultats indiquent que la disposition à payer positive pour une caractéristique désirable obtenu...

  20. Étude de la chasse aux sorcières dans les bailliages alsaciens du comté de Hanau-Lichtenberg aux XVIe et XVIIe siècles

    OpenAIRE

    Doré, Stéphanie

    2011-01-01

    Nombre d’explications concernant la chasse aux sorcières ont été avancées sans toutefois que l’une d’entre elles ait parue suffisante pour embrasser l’ensemble de ce phénomène aux multiples facettes. La chasse aux sorcières a été abordée dans cette étude à mi-chemin entre la macro – et la micro – histoire, dans une aire géographique limitée à l’Alsace – excluant de ce fait les bailliages de Lemberg, Willstätt et Lichtenau – afin d’appréhender de façon plus approfondie les relations sociales d...

  1. Est-on aux pizzas comme on est aux casseroles ? Sur les emplois métonymiques des syntagmes prépositionnels en à avec un nom d’objet

    Directory of Open Access Journals (Sweden)

    Hernandez Patricia

    2012-07-01

    Full Text Available Ce travail aborde les emplois spatiaux du type être à + article défini + nom d’objet (par exemple, être aux surgelés, aux casseroles, aux costumes, aux pizzas. De tels emplois sont compris, dans les ouvrages de spécialité comme des relations de localisation interprétables selon les connaissances partagées aussi bien sur le contexte d’énonciation que sur l’univers environnant. Sur la base de ce savoir lié aux routines établies, le repérage induit par la préposition à déclenche des inférences sur les interactions entre l’entité à situer et l’objet de référence. Notre parcours des descriptions existantes (Vandeloise 1988, Borillo 2001, Aurnague 2009, Corblin 2010 est suivi d’une réflexion, inspirée des principes de base de la sémantique cognitive (Langacker 1987, sur la nature de ces connexions. Ainsi, notre analyse prend en compte la corrélation entre objets et actions dans les rapports expérientiels entre l’être humain et son environnement : les lexèmes renvoyant aux entités dénotées offrent des clés d’accès à des routines et des synthèses d’expérience (Janet 1935, Brown 1965, Cadiot et Nemo 1997b. Ces scénarios, organisés en cadres d’interactions typiques (Fillmore 1982, fournissent un fond de connaissances permettant des connexions métonymiques par proximité conceptuelle selon des Modèles Cognitifs Idéalisés (Lakoff 1987, Radden & Kövecses 1999. Notre réflexion théorique est étayée par des occurrences attestées qui permettent de mieux saisir le rôle du contexte et des critères pragmatiques dans l’interprétation des formulations. En effet, sur la base d’une analyse contextuelle d’usages effectifs sur support électronique (Google France octobre 2011, nous présentons une ébauche de classement de ces emplois particuliers. La taxinomie proposée, qui ne se veut nullement définitive, conçoit les formulations en à avec des noms d’objet comme donnant un accès mental

  2. Petroleum marketing monthly, March 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-10

    This report for March 1995, provides information and statistical data on a variety of crude oils and refined petroleum products. The publication presents statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysts, educational institutions, and consumers. Data on crude oil include the domestic first purchase price, the f.o.b. and landed cost of imported crude oil, and the refiners` acquisition cost of crude oil. Refined petroleum product sales data include motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane. The Petroleum Marketing Division, Office of Oil and Gas, Energy Information Administration ensures the accuracy, quality, and confidentiality of the published data in the Petroleum Marketing Monthly. A glossary is included.

  3. Areva at March 31, 2016

    International Nuclear Information System (INIS)

    In the first quarter of 2016, AREVA generated consolidated revenue of 826 million euros, a decrease of 0.8% (-2.2% like for like) compared with the same period in 2015, due in particular to the schedule of uranium deliveries. Foreign exchange had a positive impact of 12 million euros over the period. At March 31, 2016, the group's backlog reached 33.6 billion euros, up sharply compared to December 31, 2015 (29 billion euros), and represented eight years of revenue. It reflects in particular multi-year commercial agreements signed with EDF in early 2016. The order intake for the first quarter of 2016 totaled 6.1 billion euros, a strong increase in relation to the first quarter of 2015 (0.3 billion euros)

  4. Geneva University - Events in March

    CERN Multimedia

    Geneva University

    2010-01-01

    École de physique - Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENEVA 4 Tel: (022) 379 62 73 - Fax: (022) 379 69 92 Monday 8 March 2010 PHYSICS COLLOQUIUM at 17:00 – Stückelberg Auditorium Gravitational lensing: an astrophysical tool Prof. Georges Meylan École Polytechnique fédérale de Lausanne (EPFL) - Observatoire de Sauverny The total solar eclipse of 1919 unveiled the gravitational lens nature of our Sun. The next example of another gravitational lens was discovered in 1979. Originally considered as a mere curiosity, gravitational lensing has matured, during the last two decades, into a genuine astrophysical tool, used in a large variety of problems, from planet search to the quest for the most distant galaxies. We shall present cosmological results obtained at EPFL about (i) strong lensing and time delays, related to the measurements of the Hubble constant ; (ii) micro lensing...

  5. Les effets des fluctuations du prix du pétrole sur les marchés boursiers dans les pays du Golfe.

    OpenAIRE

    Arouri, Mohamed El Hedi; Rault, Christophe

    2010-01-01

    Ce travail utilise les techniques récentes de cointegration en panel et la méthode d'estimation SUR pour tester l'existence d'une relation de long terme entre le prix du pétrole et le cours des actions dans les pays du Conseil de Coopération du Golfe (CCG). Ces pays étant des acteurs majeurs du marché mondial de l'énergie, leurs marchés boursiers devraient être sensibles aux chocs affectant le prix du pétrole. En utilisant une base de données mensuelle couvrant la période allant de janvier 19...

  6. Gouverner le climat, construire l’Europe : l’histoire de la création du marché de carbone ETS

    OpenAIRE

    Aykut, Stefan Cihan

    2014-01-01

    International audience Le marché du carbone européen est le résultat de trois processus parallèles : un mouvement intellectuel et politique de critique et de réforme de la régulation environnementale, une suite de négociations interdépendantes aux niveaux national, européen et international, et un jeu institutionnel autour d’une interprétation spécifique du marché du carbone comme instrument décentralisé des politiques climatiques. Plusieurs remarques à portée théorique découlent de notre ...

  7. Etude du rôle du facteur de transcription MtATB2 dans l’adaptation des légumineuses aux stress abiotiques et aux carences nutritives de fin de cycle

    OpenAIRE

    Leclercq, Pierre; Rossin, Nadia; Le Signor, Christine; Sanchez, Myriam; Verdier, Jérôme; Wen, Jiangqi; Mysore, Kirankumar; Gallardo Guerrero, Karine; Thompson, Richard; Ochatt, Sergio; Vernoud, Vanessa

    2013-01-01

    Dans un contexte climatique global d’augmentation des températures et de baisses dans les régimes hydriques, et dans la perspective de développer une agriculture plus respectueuse de l’environnement, l’étude de la réponse des plantes aux stress abiotiques (thermiques et hydriques) et aux carences nutritives (bas niveau d’intrants) est cruciale. Nous nous intéressons en particulier à l’impact de ces stress sur le développement des légumineuses en fin de cycle (pois et Medicago truncatula), inc...

  8. Application de la Thermodynamique de Histoires aux Systèmes Vitreux

    OpenAIRE

    Duijvendijk, K.

    2009-01-01

    En nature il existe des matériaux dits vitreux qui, si refroidis brusquement au delà d'une certaine température, n'atteignent l'équilibre avec leur environnement que sur des temps très longs et manifestent des propriétés dynamiques particulières qui caractérisent l'état vitreux. Cet état ne peux se décrire à travers des quantités thermodynamiques statiques, mais qu'à travers des quantités purement dynamiques. Le formalisme thermodynamique des histoires, introduit par Ruelle dans le contexte d...

  9. VEILLE ET MANAGEMENT DES COMPETENCES: APPLICATION DE LA DEMARCHE DE VEILLE AUX METIERS NUMERIQUES

    OpenAIRE

    Dumas, Philippe; Bertacchini, Yann

    2003-01-01

    Par « métier numérique », nous entendons les métiers liés spécifiquement à la diffusion et à la banalisation des technologies de l'information communication (TIC) qui ont été « nouvelles » pendant la dernière décennie. L'objet de ces métiers est de privilégier les objets immatériels c'est-à-dire, les productions intellectuelles et le traitement de l'information. La net économie et le retournement Si le phénomène et l'expression de nouvelle économie tendent respectivement à rejoindre les princ...

  10. Conception et modelisation logicielles des systemes interactifs : application aux interfaces multimodales

    OpenAIRE

    Nigay, Laurence

    1994-01-01

    This thesis focuses on the software engineering design and implementation of Human- Computer Interfaces. We concentrate on multifeature systems which integrate new techniques as multiple communication means. We examine user, as well as system activities. We therefore assign various steps in the abstraction and concretisation mechanisms for information exchange between the user and the system. The Pipe-lines design space organises these steps within a framework that integrates both user and sy...

  11. INFÉRENCE DE CONNAISSANCES SÉMANTIQUES, APPLICATION AUX IMAGES SATELLITAIRES

    OpenAIRE

    Bordes, Jean-Baptiste

    2009-01-01

    Une méthode probabiliste pour annoter des images satellites avec des concepts sémantiques est présentée. Cette méthode part de caractéristiques de bas-niveau quantifiées dans l'image et utilise une phase d'apprentissage à partir des concepts fournis par l'utilisateur avec un lot d'images exemples. La contribution principale est la définition d'un formalisme pour la mise en relation d'un réseau sémantique hiérarchique avec un modèle stochastique. Les liens sémantiques de synonymie, méronymie, ...

  12. VALORISATION D’UN REJET INDUSTRIEL RICHE EN CHLORURE FERRIQUE : APPLICATION AUX TRAITEMENTS DES EAUX RESIDUAIRES

    OpenAIRE

    Abdelhak Majouli; Younes Abrouki; Hicham Rhbal; Mohamed Safi; Salah Souabi; Abdelkader Anouzla

    2010-01-01

    Intense coloring due to the presence of the non biodegradable dyes, often toxic, in industrial wastewater, enormously poses problems of degradation of the receiving medium (i.e. surface waters). This study relates to the control of pollution of the industrial wastewater with physicochemical treatment by using an industrial waste rich in ferric chloride like original coagulant. This was tested for the control of pollution of the liquid effluents from the textile industry strongly polluted with...

  13. VALORISATION D’UN REJET INDUSTRIEL RICHE EN CHLORURE FERRIQUE : APPLICATION AUX TRAITEMENTS DES EAUX RESIDUAIRES

    Directory of Open Access Journals (Sweden)

    Abdelhak Majouli

    2010-07-01

    Full Text Available Intense coloring due to the presence of the non biodegradable dyes, often toxic, in industrial wastewater, enormously poses problems of degradation of the receiving medium (i.e. surface waters. This study relates to the control of pollution of the industrial wastewater with physicochemical treatment by using an industrial waste rich in ferric chloride like original coagulant. This was tested for the control of pollution of the liquid effluents from the textile industry strongly polluted with organic matter. Several parameters were selected to control the purification of our effluents: turbidity, chemical oxygen demand (COD, and volume of sludge. The optimal concentration of the coagulant used in this treatment varies from one waste to another, according to the polluting load to treat. The output of this physicochemical treatment shows an important reduction of the polluting load of textile wastewaters: 91 – 87% of the organic matter and 84 – 85% of suspended solids, with less sludge production.

  14. Large Eddy simulations of jet in cross flow; Simulations aux grandes echelles: application au jet transverse

    Energy Technology Data Exchange (ETDEWEB)

    Priere, C.

    2005-01-15

    Nowadays, environmental and economic constraints require considerable research efforts from the gas turbine industry. Objectives aim at lowering pollutants emissions and fuel consumption. These efforts take a primary importance to satisfy a continue growth of energy production and to obey to stringent environmental legislations. Recorded progresses are linked to mixing enhancement in combustors running at lean premixed operating point. Indeed, industry shows itself to be attentive in the mixing enhancement and during the last years, efforts are concentrated on fresh and burned gas dilution. The Jet In Cross Flow (JICF), which constitutes a representative case to further the research effort. It has been to be widely studied both in experimentally and numerically, and is particularly well suited for the evaluation of Large Eddy Simulations (LES). This approach, where large scale phenomena are naturally taken into account in the governing equation while the small scales are modelled, offers the means to well-predict such flows. The main objective of this work is to gauge and to enhance the quality of the LES predictions in JICF configurations by means of numerical tools developed in the compressible AVBP code. Physical and numerical parameters considered in the JICF modelization are taken into account and strategies that are able to enhance quality of LES results are proposed. Configurations studied in this work are the following: - Influences of the boundary conditions and jet injection system on a free JICF - Study of static mixing device in an industrial gas turbine chamber. - Study of a JICF configuration represented a dilution zone in low emissions combustors. (author)

  15. Compaction conventionnelle et compaction grande vitesse : application aux produits multimatériaux et multifonctions

    OpenAIRE

    Le Guennec, Yann,

    2011-01-01

    Among industrial shape processes, powder metallurgy has a high production rate associated to low waste of materials. Manufacturing of multi-material components by die pressing and sintering is useful to reduce the production cycle in order to combine complementary properties. The aim of this thesis is to study an innovative compaction process which can increase production rate and reduce stresses applied on tools: the HVC (High Velocity Compaction), and use it to shape multi-material componen...

  16. La négation comme jugement : une application aux interronégatives

    OpenAIRE

    Muller, Claude

    2012-01-01

    Cet article présente une nouvelle analyse de l'interrogation, basée sur l'opposition entre les connaissances ou présupposés pragmatiques d'arrière-plan et la notion de premier plan, à l'origine de la question. La présence ou non d'une négation peut, dans ce cadre, illustrer la stratégie du locuteur : dans le même contexte, celui-ci peut soit mettre en doute son opinion d'arrière-plan, soit anticiper sur la vérité du premier plan. On peut ainsi décrire l'interronégative sans faire intervenir l...

  17. CONTRIBUTION A LA STEREOVISION OMNIDIRECTIONNELLE ET AU TRAITEMENT DES IMAGES CATADIOPTRIQUES : APPLICATION AUX SYSTEMES AUTONOMES

    OpenAIRE

    EL KADMIRI, Omar

    2014-01-01

    Computer vision and digital image processing are two disciplines aiming to endow computers with a sense of perception and image analysis, similar to that of humans. Artificial visual perception can be greatly enhanced when a large field of view is available. This thesis deals with the use of omnidirectional cameras as a mean of expanding the field of view of computer vision systems. The visual perception of depth (3D) by means of omnistereo configurations, and special processing algorithms ad...

  18. Groupes quantiques associes aux courbes rationnelles et elliptiques et leurs applications

    CERN Document Server

    Silantyev, A

    2008-01-01

    The thesis was defended by the author in University of Angers (France). It consists of four parts. The fist part (in French) is introductory and is devoted to relation between quantum groups, integrable systems and statistical models. In the second part (in English) the transition function of the periodic Toda chain is interpreted in terms of the formalism of rational Lax operators. In the third part (in French) one compares two elliptic quantum groups and one conclude that they belong to two different bialgebra categories. The fourth part (in English) contains a construction of the partition function of the SOS model in terms of the projections of an elliptic quantum group.

  19. Les représentations sociales du travail dans des parcours de retour aux études aux niveaux collégial et universitaire

    Directory of Open Access Journals (Sweden)

    Claude Julie Bourque

    2009-10-01

    Full Text Available Cet article porte sur le volet éducatif de la production et de la reproduction de la main-d’œuvre hautement qualifiée par l’examen des processus en jeu au moment des retours aux études dans des programmes de formation technique et de génie. Nous nous intéressons en particulier à une situation emblématique des référentiels politiques récents en matière d’éducation, soit les retours aux études. Nous cherchons à mieux comprendre comment le retour aux études se réalise, comment les représentations professionnelles agissent sur ce dernier et comment l’expérience scolaire influence les projets des individus. Notre analyse met l’accent sur les ressorts sociaux et culturels des décisions relatives au choix de programmes et à l’orientation professionnelle d’étudiants qui ont interrompu leurs études et qui y retournent. Nous explorons le discours d’étudiants et d’étudiantes qui ont choisi de profiter de la souplesse du système d’éducation québécois pour compléter ou bonifier leur formation initiale ou encore pour tenter une réorientation professionnelle. En particulier, nous désirons savoir comment les différentes formes d’articulation entre éducation et travail influencent les représentations sociales des étudiants au sujet des titres scolaires, de l’évolution de leur carrière scolaire et de leur projet professionnel personnel.This paper deals with the educational aspect of the production and reproduction of highly qualified manpower through examining the processes at play when people return to school by enrolling in technical or engineering training programs. Our interest is focussed specifically on returning to school as an emblematic situation in recent educational policy frameworks. We are trying to better understand how school return is done, how professional representations act upon it and how previous school experience influences individual projects. Our analysis focuses on the

  20. MARCH 2 simulation of the Power Burst Facility Severe Fuel Damage Scoping Test. Chapter 2

    International Nuclear Information System (INIS)

    A major portion of the NRC's experimental program on severe fuel damage is being performed in the Power Burst Facility (PBF) at the Idaho National Engineering Laboratory to obtain the data necessary to understand fuel behavior and coolability under severely degraded conditions. The first of a planned series of experiments, the PBF Severe Fuel Damage Scoping Test, was performed on October 29, 1982. This paper presents the results of a MARCH 2 simulation of this experiment. The MARCH (Meltdown Accident Response Characteristics) code describes the physical processes governing the progression of reactor meltdown accidents, from the initiating event through attack of the concrete basemat by the molten core debris. In the present context only the core and primary system aspects of MARCH are of concern. MARCH was originally developed as a tool for use in probabilistic risk assessments of reactors; with increasing interest in severe accident phenomenology, particularly following the accident at Three Mile Island Unit No. 2, versions of the MARCH code have found a variety of applications to phenomenological as well as regulatory issues. Since MARCH is a widely used code, this comparison of the MARCH core modeling with experimental data should be of interest to MARCH code users

  1. Identification and expression analysis of primary auxin-responsive Aux/IAA gene family in cucumber (Cucumis sativus)

    Indian Academy of Sciences (India)

    Defang Gan; Dan Zhuang; Fei Ding; Zhenzhou Yu; Yang Zhao

    2013-12-01

    Aux/IAA is an important gene family involved in many aspects of growth and development. Aux/IAA proteins are short-lived nuclear proteins that are induced primarily by various phytohormones. In this study, 29 Aux/IAA family genes (CsIAA01–CsIAA29) were identified and characterized in cucumber, including gene structures, phylogenetic relationships, conserved protein motifs and chromosomal locations. These genes show distinct organizational patterns of their putative motifs. The distributions of the genes vary: except for five CsIAA genes in cucumber that were not located, seven CsIAA genes were found on scaffold, while the other 17 CsIAA genes were distributed on seven other chromosomes. Based on a phylogenetic analysis of the Aux/IAA protein sequences from cucumber, Arabidopsis and other plants, the Aux/IAA genes in cucumber were categorized into seven subfamilies. To investigate whether the expression of CsIAA genes is associated with auxin induction, their transcript levels were monitored in seedlings treated with IAA (indole-3-acetic acid), and their expression patterns were analysed by semiquantitative reverse transcription-polymerase chain reaction (RT-PCR). The results showed that 11/29 CsIAA genes were expressed in leaves whether treated with IAA or not and the time course of processing and compared with the control, five CsIAA genes showed low expression only after 60 min treatment with IAA, while 11 genes showed no expression. These results provide useful information for further functional analysis of Aux/IAA gene family in cucumber.

  2. Edgar Morin, aux risques d'une pensée libre

    CERN Document Server

    Pena Vega, Alfredo

    2011-01-01

    8 juillet 2011 ; Edgar Morin fête ses 90 ans et 60 ans passés au sein du CNRS. Une occasion unique pour l'équipe d'Hermès et Dominique Wolton, d'analyser et de critiquer la pensée de ce grand intellectuel. Aspiration à la liberté, attention à la complexité du monde et une profonde originalité épistémologique, Edgar Morin a bouleversé aussi bien la philosophie, la politique que la physique ou les mathématiques. Avec un souci constant : faire communiquer et interagir toutes les sciences pour relever le défi de la compréhension. Plus qu'un simple hommage, ce numéro questionne l'œuvre d'Edgar Morin au filtre de la communication, dévoilant les mécaniques de cette vision du monde profondément originale, échappant aux cloisonnements et aux certitudes académiques, portée par un projet central, celui d'une réforme des connaissances. Suivant les cheminements intellectuels et politiques de ce chercheur itinérant et passionné à travers l'Europe, l'Est, l'Amérique latine ou les États-Unis, ce...

  3. Safety Training: Sensibilisation aux gestes et postures de travail

    CERN Multimedia

    Laetitia Laddada

    2004-01-01

    Nous vous proposons un nouveau cours de sécurité lié aux manutentions manuelles (durée 1 jour) : Sensibilisation aux gestes et postures de travail. Si vous êtes amené à manipuler régulièrement des charges lourdes ou volumineuses, cette formation peut vous aider à prévenir les lésions musculaires ou dorsales. A l'issue de cette formation, vous serez capable d'adopter et d'appliquer les principes de base de sécurité physique et d'économie d'efforts dans les manipulations d'objets. Les cours sont pris en charge par la Commission de Sécurité. L'inscription EDH est obligatoire. Pour plus d'information, veuillez consulter les pages Formation & Développement (Groupe Sécurité). Formation & Développement (Groupe Sécurité) FORMATION EN SECURITE SAFETY TRAINING Laetitia Laddada 73811 - 79236 sa...

  4. Safety Training: Sensibilisation aux gestes et postures de travail

    CERN Multimedia

    Laetitia Laddada

    2004-01-01

    >Nous vous proposons un nouveau cours de sécurité lié aux manutentions manuelles (durée 1 jour) : Sensibilisation aux gestes et postures de travail. Si vous êtes amené à manipuler régulièrement des charges lourdes ou volumineuses, cette formation peut vous aider à prévenir les lésions musculaires ou dorsales. A l'issue de cette formation, vous serez capable d'adopter et d'appliquer les principes de base de sécurité physique et d'économie d'efforts dans les manipulations d'objets. Les cours sont pris en charge par la Commission de Sécurité. L'inscription EDH est obligatoire. Pour plus d'information, veuillez consulter les pages Formation & Développement (Groupe Sécurité). Formation & Développement (Groupe Sécurité) FORMATION EN SECURITE SAFETY TRAINING Laetitia Laddada 73811 - 79236 s...

  5. Safety Training: Sensibilisation aux gestes et postures de travail

    CERN Multimedia

    Laetitia Laddada

    2004-01-01

    Nous vous proposons un nouveau cours de sécurité lié aux manutentions manuelles (durée 1 jour) : Sensibilisation aux gestes et postures de travail. Si vous êtes amené à manipuler régulièrement des charges lourdes ou volumineuses, cette formation peut vous aider à prévenir les lésions musculaires ou dorsales. A l'issue de cette formation, vous serez capable d'adopter et d'appliquer les principes de base de sécurité physique et d'économie d'efforts dans les manipulations d'objets. Les cours sont pris en charge par la Commission de Sécurité. L'inscription EDH est obligatoire. Pour plus d'information, veuillez consulter les pages Formation & Développement (Groupe Sécurité). Formation & Développement (Groupe Sécurité) FORMATION EN SECURITE SAFETY TRAINING Laetitia Laddada 73811 - 79236 safety.training@cern.ch

  6. marche d'Ingénierie Système pour les systèmes de management.Application à l'ingénierie d'un processus de conception et développement

    OpenAIRE

    Bron, Jean-Yves; Salzemann, Bruno

    2015-01-01

    Le pôle AIP-PRIMECA Lorraine est un centre de ressources de l'Université de Lorraine, il met à disposition des filières de formation des plateformes à caractères industriels. Dans cette publication, nous proposons une démarche d'ingénierie d'un processus de son système de management. L'originalité de notre contribution repose principalement sur l'usage de méthodologies issues de l'Ingénierie des Systèmes Complexes pour la conception d'un processus d'un système de management. Ce dernier étant ...

  7. March for Climate in New York

    Science.gov (United States)

    McCarter, Tricia

    2014-09-01

    On Sunday, 21 September, the People's Climate March will be held in New York City to raise awareness about climate change. With world leaders gathering in that city on 23 September for the United Nations Climate Summit, the march aims to mobilize scientists, activists, community leaders, and members of the public who care about climate change and galvanize action about this important issue.

  8. Use of a Pre-Computed Data Base of Tsunami Simulations for Rapid Estimation of Tsunami Amplitude: Application to the Effective Tsunami Warning of the Great Tsunami of 11 March 2011 IN French Polynesia

    Science.gov (United States)

    Reymond, D.; Hebert, H.; Okal, E.

    2011-12-01

    We developed a method giving a rapid and accurate estimation of the tsunami amplitude based on a pre-computed database of numerical simulations; this methodology has been applied in real-time in an operational context during the March 2011 Honshu tsunami alert in French Polynesia. For this purpose we constructed a pre-computed database of numerical simulations of tsunamis for 260 scenarios, involving 20 source regions distributed in the main dangerous circum Pacific subduction zones. For each region, we consider 3 types of generic sources defined by their seismic moment and their sources dimensions: MEGA (corresponding to a scalar moment Mo of 1023 N.m), BIG (Mo = 1022 N.m) and AVERAGE (Mo = 1021 N.m). All the pre-computed scenarios give the maximum height of the sea surface in deep ocean with a time step of 1 hour. The database also includes all the synthetic waveforms (14 820) at 57 virtual receivers, including all existing DART buoys, thus allowing comparisons between calculated and observed data. The latter can help to detect abnormal earthquakes (e.g., "tsunami earthquakes", generating a larger tsunami than expected, or conversely, a "snappy" earthquake generating a deficient tsunami. The distribution of tsunami heights along a coastline is then calculated from the deep ocean sea surface using Green's law and stopping the computation at a depth of 5 m. A modified formulation of Green's law has been introduced to take into account large amplification effects of some bays in the Marquesas Islands. This method gives good results in agreement with the measures and observations made during the post tsunami field surveys of the events of Chile February 2010 and Japan March 2011

  9. ETUDE DE LA STABILITE AUX PETITES PERTURBATIONS DANS LES GRANDS RESEAUX ELECTRIQUES : OPTIMISATION DE LA REGULATION PAR UNE METHODE METAHEURISTIQUE

    OpenAIRE

    Alkhatib, Hasan

    2008-01-01

    Depuis une vingtaine d'années, les grands réseaux électriques se trouvent obligés de fonctionner à pleine puissance et souvent aux limites de la stabilité. L'amélioration de la stabilité aux petites perturbations, en particulier l'amortissement des oscillations interrégionales, est donc devenue un objectif prioritaire. Les interactions entre les générateurs de différentes régions et les régulateurs utilisés nécessitent une optimisation globale de leurs performances : c'est le meilleur moyen p...

  10. Transition des soins curatifs aux soins palliatifs dans un contexte de soins intensifs dans le cadre des soins infirmiers

    OpenAIRE

    Grzywack, Maurine; Meyer, Margaux; Ventimiglia, Valérie; Charmillot, Pierre-Alain

    2016-01-01

    Buts : Le travail de Bachelor, comprenant une revue de littérature et d’articles probants, comporte les objectifs suivants : 1) Mettre en évidence les différentes perceptions infirmières liées à la mort dans le contexte de soins intensifs par rapport aux soins palliatifs. 2) Relever les difficultés, obstacles, rencontrés par les professionnels de la discipline infirmière dans un milieu très aigu concernant la transition des soins curatifs aux soins palliatifs. 3) Mettre en lumière les interve...

  11. Capteurs de quotas. La pêche européenne entre territoires et marché

    OpenAIRE

    Lequesne, Christian

    1999-01-01

    Les pêcheurs européens ont une représentation de leur activité qui reste étroitement liée à des communautés professionnelles, nationales et locales. La politique commune de la pêche de l'Union européenne a pris en compte cette représentation territoriale dans ses principales réglementations. A partir des années 1980, la logique territoriale se trouve néanmoins en contradiction avec les règles du libre marché, ce qui a notamment permis aux armateurs d'Espagne et des Pays-Bas d'acheter des navi...

  12. Instabilité des marchés et stabilisateurs institutionnels
    La contribution de John Maynard Keynes

    OpenAIRE

    Asensio, Angel

    2008-01-01

    Cette version contient la référence omise au bas de la page 1 dans la première version Les économistes orthodoxes prétendent que la libre concurrence assure le meilleur fonctionnement des économies de marchés. Les désordres récents ne résulteraient donc pas d'une concurrence débridée, mais plutôt du manque de concurrence. Cette position est plus forte qu'il n'y paraît, parce qu'elle repose sur un cadre théorique très élaboré qui ne laisse aucune place aux dysfonctionnements quand la concur...

  13. Instabilité des marchés et stabilisateurs institutionnelsLa contribution de John Maynard Keynes

    OpenAIRE

    Angel Asensio

    2008-01-01

    Les économistes orthodoxes prétendent que la libre concurrence assure le meilleur fonctionnement des économies de marchés. Les désordres récents ne résulteraient donc pas d'une concurrence débridée, mais plutôt du manque de concurrence. Cette position est plus forte qu'il n'y paraît, parce qu'elle repose sur un cadre théorique très élaboré qui ne laisse aucune place aux dysfonctionnements quand la concurrence règne. Mais elle est aussi plus irréaliste que jamais, car elle condamne d'entrée to...

  14. Geneviève Teil, De la coupe aux lèvres. Pratiques de la perception et mise en marche des vins de qualité

    Directory of Open Access Journals (Sweden)

    Marion Demossier

    2004-12-01

    Full Text Available Voici enfin un ouvrage sur le vin qui, à bien des égards, s’éloigne des sentiers battus. Original de par son thème, novateur de par sa rigueur méthodologique face à un objet qui défie toute analyse classique, provocateur de par les débats qu’il soulèvera dans le monde des experts et des buveurs, le travail de Geneviève Teil a de quoi inspiré le monde moderne du vin à une époque de doutes et d’incertitudes économiques. Bien qu’elle s’en défende, Teil argue en faveur d’une culture experte des v...

  15. La contagion de la crise des Subprimes aux marchés des bons du trésor américain.

    OpenAIRE

    Chihi Bouaziz, Meriam; Boujelbene, Younes; Bazin, Damien

    2013-01-01

    The American Treasury bond markets have suffered catastrophic losses due to the subprime crisis, which erupted in 2007. We study in this paper the contagion of this crisis by examining the increase links between these markets and the U.S. subprime loan market. We use a VAR model considered most suitable for this purpose. Our study is based on the prices of subprime Asset-backed collateralized debt obligations (CDOs) and changes in U.S. Treasury bond yields. Our results support the hypothesis ...

  16. Etude des concepts de filtrage robuste aux méconnaissances de modèle et aux pertes de mesures. Application aux systèmes de navigation

    OpenAIRE

    Sircoulomb, Vincent

    2008-01-01

    To solve the problem of estimating the state of a system, it is necessary to have at one's disposal a model governing the dynamic of the state variables and to measure directly or indirectly all or a part of these variables. The work presented in this thesis deals with the estimation issue in the presence of model uncertainties and sensor losses. The first part of this work represents the synthesis of a state estimation device for nonlinear systems. It consists in selecting a state estimator ...

  17. Modélisation financière avec des processus de Volterra et applications aux options, aux taux d'intérêt et aux risques de crédit

    OpenAIRE

    El Rahouli, Sami

    2014-01-01

    The purpose of this work is the analysis of financial models, especially for option pricing, interest rates and credit risk, with stochastic processes having memory and eventually discontinuities, characteristics which can be observed frequently in the statistical evaluation of financial data. Fractional Brownian motion seems to be a natural tool for modeling continuous phenomena with memory. However, contrary to the classical models which are usually formulated in terms of Brownian motion or...

  18. Marching of Freely Falling Plates

    CERN Document Server

    Wan, Hui; Gaston, Zachary; Liang, Zongxian

    2011-01-01

    "Marching of freely falling plates" is a fluid dynamics video for the Gallery of Fluid Motion submitted to APS-DFD 2011 at Baltimore Maryland. The problem of a freely falling plate is of interest in both fluid mechanics and nonlinear dynamics. The trajectory of the plate can be regular (Willmarth et al., 1964) or chaotic (Aref and Jones, 1993). As long as Reynolds number is high enough, regular flutter and tumble motion can be obtained for plates with small and large Froude numbers respectively. Belmonte et al. (1998) conducted experimental study on thin flat strips falling in a vertical cell. They categorized the Froude number at which the transition from fluttering to tumbling occurs. Andersen et al. (2005) analyzed the transitions between fluttering and tumbling using vorticity-stream function formulation and ODE dynamic equations based on quasi-steady models. They also found that the fluid circulation is mainly generated by the plate rotation and its angular velocity. However, the correlation among the pl...

  19. ETUDES ANALYTIQUES : Détection des OGM : du libre choix des consommateurs aux études de biovigilance

    Directory of Open Access Journals (Sweden)

    Bertheau Yves

    2000-07-01

    Full Text Available Les récentes affaires de semences conventionnelles de colza et de maïs contaminées par des traces d’OGM ont à nouveau, s’il en était besoin, rappelé à notre bon souvenir les besoins en méthodes de détection et d’identification des OGM fiables et sensibles. Les développements se poursuivent, certes bien plus lentement qu’initialement espéré du fait du nombre important de facteurs à maîtriser et du caractère relativement inédit de ce travail. Concernant des matrices alimentaires variées, cette détection se heurte au manque de recul dans plusieurs domaines tels que celui de l’extraction et la purification d’acides nucléiques en quantité et en qualité. Bien que développées pour satisfaire aux besoins réglementaires européens concernant l’alimentation humaine, ces méthodes devraient être aisément applicables dans d’autres domaines concernés par les OGM (étude des transferts de gènes par flux pollinique, éventuels transferts horizontaux, suivi des acides nucléiques lors de l’ingestion.... Au-delà des OGM, les méthodes mises en œuvre devraient présenter un intérêt dans d’autres domaines comme la microbiologie, l’épidémiologie ou l’authentification des composants biologiques d’un produit.

  20. Bibliography of Soviet laser developments, number 64, March -April 1983

    Science.gov (United States)

    1984-03-01

    This is the Soviet Laser Bibliography for March-April 1983, and is No. 64 in a continuing series on Soviet laser developments. The coverage includes basic research on solid state, liquid, gas, and chemical lasers; components; nonlinear optics; spectroscopy of laser materials; ultrashort pulse generation; crystal growing; theoretical aspects of advanced lasers; and general laser theory. Laser applications are listed under biological effects; communications; beam propagation; adaptive optics; computer technology; holography; laser-induced chemical reactions; measurement of laser parameters; laser measurement applications; laser-excited optical effects; laser spectroscopy; beam-target interaction; and plasma generation and diagnostics.

  1. Bibliography of Soviet laser developments, number 88, March - April 1987

    Science.gov (United States)

    1988-03-01

    This is the Soviet Laser Bibliography for March-April 1987, and is No. 88 in a continuing series on Soviet laser developments. The coverage includes basic research on solid state, liquid, gas, and chemical laser components; nonlinear optics; spectroscopy of laser materials; ultrashort pulse generation; theoretical aspects of advanced lasers; and general laser theory. Laser applications are listed under biological effects; communications systems; beam propagation; adaptive optics; computer technology; holography; laser-induced chemical reactions; measurement of laser parameters; laser measurement applications laser-excited optical effects; laser spectroscopy; beam-target interaction; and plasma generation and diagnostics.

  2. Bibliography of Soviet laser developments, March-April 1988

    Science.gov (United States)

    1990-03-01

    This is the Soviet Laser Bibliography for March to April 1988. The coverage includes basic research on solid state, liquid, gas, and chemical lasers; components; nonlinear; optics; spectroscopy of laser materials; ultrashort pulse generation; theoretical aspects of advanced lasers; and general laser theory. Laser applications are listed under biological effects; communications systems; beam propagation; adaptive optics; computer technology; holography, laser-induced chemical reactions; measurement of laser parameters; laser measurement applications; laser-excited optical effects; laser spectroscopy; beam-target interaction; and plasma generation and diagnostics.

  3. LLE Review. Quarterly report, January--March 1992: Volume 50

    Energy Technology Data Exchange (ETDEWEB)

    Keck, R.L. [ed.

    1992-09-01

    This volume of the LLE Review, covering the period January--March 1992, contains articles on the use of diffraction gratings in laser applications, and the fabrication of gratings for use in these applications. there are two articles on the use of lasers to explore fundamental physics issues and an article on the use of a solid-state diode array for x-ray imaging. Finally, the activities of the National Laser Users Facility and the GDL and OMEGA laser systems are summarized.

  4. Réguler pour contrôler le développement de la résistance aux pesticides (La durabilité de la sensibilité des bioagresseurs aux pesticides et aux variétés résistantes)

    OpenAIRE

    Stefan Ambec; Marion Desquilbet

    2011-01-01

    L’utilisation de pesticides et l’introduction de variétés résistantes à certains bioagresseurs (insectes, champignons, virus, bactéries) en agriculture exercent une pression de sélection sur ces populations de bioagresseurs. Au cours du temps, l’efficacité de ces technologies peut diminuer si des résistances (aux pesticides ou aux variétés résistantes) se développent. La durabilité des pesticides et des variétés résistantes est donc en grande partie tributaire de leur utilisation. Plus une te...

  5. LLE Review 98 (January-March 2004)

    Energy Technology Data Exchange (ETDEWEB)

    Goncharov, V.N.

    2004-08-10

    This volume of the LLE Review, covering January-March 2004, features ''Performance of 1-THz-Bandwidth, 2-D Smoothing by Spectral Dispersion and Polarization Smoothing of High-Power, Solid-State Laser Beams'', by S. P. Regan, J. A. Marozas, R. S. Craxton, J. H. Kelly, W. R. Donaldson, P. A. Jaanimagi, D. Jacobs-Perkins, R. L. Keck, T. J. Kessler, D. D. Meyerhofer, T. C. Sangster, W. Seka, V.A. Smalyuk, S. Skupsky, and J. D. Zuegel (p. 49). Laser-beam smoothing achieved with 1-THz-bandwidth, two-dimensional smoothing by spectral dispersion and polarization smoothing on the 60-beam, 30-kJ, 351-nm OMEGA laser system is reported. These beam-smoothing techniques are directly applicable to direct-drive ignition target designs for the 192-beam, 1.8-MJ, 351-nm National Ignition Facility. Equivalent-target-plane images for constant-intensity laser pulses of varying duration were used to determine the smoothing. The properties of the phase plates, frequency modulators, and birefringent wedges were simulated and found to be in good agreement with the measurements.

  6. LLE Review 98 (January-March 2004)

    International Nuclear Information System (INIS)

    This volume of the LLE Review, covering January-March 2004, features ''Performance of 1-THz-Bandwidth, 2-D Smoothing by Spectral Dispersion and Polarization Smoothing of High-Power, Solid-State Laser Beams'', by S. P. Regan, J. A. Marozas, R. S. Craxton, J. H. Kelly, W. R. Donaldson, P. A. Jaanimagi, D. Jacobs-Perkins, R. L. Keck, T. J. Kessler, D. D. Meyerhofer, T. C. Sangster, W. Seka, V.A. Smalyuk, S. Skupsky, and J. D. Zuegel (p. 49). Laser-beam smoothing achieved with 1-THz-bandwidth, two-dimensional smoothing by spectral dispersion and polarization smoothing on the 60-beam, 30-kJ, 351-nm OMEGA laser system is reported. These beam-smoothing techniques are directly applicable to direct-drive ignition target designs for the 192-beam, 1.8-MJ, 351-nm National Ignition Facility. Equivalent-target-plane images for constant-intensity laser pulses of varying duration were used to determine the smoothing. The properties of the phase plates, frequency modulators, and birefringent wedges were simulated and found to be in good agreement with the measurements

  7. Planification successorale : les avancées du Règlement européen relatif aux successions

    OpenAIRE

    Wautelet, Patrick

    2012-01-01

    Cette présentation a pour objectif de mettre en exergue les grands principes retenus par le Règlement européen relatif aux successions. Pour ce faire, les règles européennes sont contrastées avec le cadre juridique actuel.

  8. Finance et risque aux Etats-Unis : vers une nouvelle frontière ? Finance and Risk in the USA: A New Frontier?

    Directory of Open Access Journals (Sweden)

    Christine Zumello

    2010-03-01

    Full Text Available Cet article aborde la question de l’évaluation et de l’anticipation du risque sur les marchés financiers aux États-Unis. Les différents types de risque sont analysés ainsi que les principales méthodes utilisées pour les évaluer. La crise des subprimes qui a marqué la fin du second mandat de G.W. Bush a semblé déboucher sur une crise systémique. Parmi les différentes strates de risque, le plus grave est celui qui porte le système financier et économique au naufrage. Les conditions de la remise en cause du système suite à des prises de risque ou une absence de contrôle rigoureux du risque posent la question de l’équilibre entre la sphère politique et la sphère financière.This article raises the question of the evaluation and anticipation of risk on financial markets in the United States. The various types of risk are analysed as well as the main methods used to measure risk. The subprime crisis which dominated the end of the second G.W. Bush presidential term seemed to bring the whole financial and economic system to the brink of collapse. The central notion of the measure and control of risk hinges on the role of the political sphere versus the financial sphere.

  9. Chapitre 4. La Russie face aux révoltes libyenne et syrienne

    OpenAIRE

    De Tinguy, Anne

    2014-01-01

    Résumé : Face aux soulèvements dans le monde arabe, la Russie a glissé d’une attitude de compréhension à une prise de distance avec les stratégies adoptées par la majorité des États occidentaux et arabes, d’abord dans le cas libyen mais surtout dans le dossier syrien. Dans ses choix, la diplomatie russe est aussi bien guidée par des considérations stratégiques régionales (appui à un partenaire de longue date, ventes d’armes, facilités navales à Tartous, peur d’avoir à ses frontières un « seco...

  10. Goa aux portes des métropoles. Communautés transnationales et musique techno

    OpenAIRE

    Boutouyrie, Eric

    2011-01-01

    Il s’agit dans cette contribution de montrer et de comprendre comment Goa fut le lieu d’une double invention au milieu des années 1980 : celle d’un courant musical de la mouvance techno (la « Psychedelic Trance » ou « Goatrance ») et celle de manifestations spatiales inédites (les « parties trance ») reproduites de nos jours aux quatre coins du globe. Dans un contexte postcolonial caractérisé, entre autres, par un métissage des sonorités, l’émergence d’une culture mondiale et un repli identit...

  11. Report on nuclear safety and transparency 2011 - Fontenay-aux-Roses CEA centre

    International Nuclear Information System (INIS)

    After a brief presentation of the Fontenay-aux-Roses CEA centre, this report indicates the different safety measures in the different nuclear base installations (INB) of this site (measures related to different risks, to emergency situations, to inspections and audits). It describes measures related to radiation protection: organisation, dosimetry results. It presents the different significant events which occurred in 2011 and were declared to the ASN. It discusses the results of measurements of liquid, gaseous and chemical releases from the installations and their impact on the environment. It addresses the radioactive waste management (measures to limit their volume and to limit their impact on health and on the environment, notably on water and soils, type and quantities of wastes stored in INBs). It presents the different measures and actions related to information transparency

  12. La lettre aux Colossiens: une théologie de la mémoire

    OpenAIRE

    Dettwiler, Andréas

    2013-01-01

    La lettre aux Colossiens - très probablement un document deutéropaulinien - peut être vue avant tout comme un remarquable effort théologique de mémoire. Si son auteur n'a pas l'ambition de dire quelque chose de réellement inédit, il y propose une relecture très originale de la tradition religieuse communément partagée entre lui et la communauté destinataire, pour offrir à celle-ci une interprétation qui donne sens à ce qu'elle vit dans une situation devenue de plus en plus opaque et conflictu...

  13. Le passage aux urgences : lieu des ruptures de prise en charge ?

    OpenAIRE

    Thomas, Jérôme

    2014-01-01

    Cette communication s'interroge sur l'impact de l'usage des systèmes d'information médicale sur la clinique menée dans le cadre de l'intervention de psychiatrie aux urgences. Elle montre que ces systèmes d'information sont ambivalents dans leurs effets puisqu'ils se substituent parfois à la clinique, en la contraignant selon des normes gestionnaires, mais qu'ils sont aussi des lieux d'inscription de la mémoire de l'institution et du récit de la rencontre avec les patients en crise. Ces récits...

  14. Emission de bandes larges dans ZnSe : cathodoluminescence, thermoluminescence, transitions dues aux centres profonds

    OpenAIRE

    Hitier, G.; Curie, D.; Visocekas, R.

    1981-01-01

    Dans cet article nous étudions le comportement thermique des émissions de bandes larges sur des cristaux de ZnSe cubique dopés et self-activés. La bande rouge du cuivre (1,96 eV) s'élargit principalement du côté des basses énergies quand la température croît et la bande verte (2,33 eV) disparaît aux environs de la température ordinaire. Nous obtenons les énergies d'activation thermique. Nous étudions aussi les profondeurs des pièges par différentes techniques de thermoluminescence ainsi que l...

  15. La panique pédophile aux États-Unis et en France

    OpenAIRE

    Kristen Zgoba; Mélanie-Angela Neuilly

    2005-01-01

    Durant la première moitié des années 1990, les États-Unis traversèrent ce qui peut être appelé une crise liée aux crimes sexuels. Ceci entraîna le passage de législations spécifiques destinées à adresser ce qui était perçu par le public comme un problème social de grande envergure. Durant la seconde moitié des années 1990, l’Europe (principalement l’Angleterre, la Belgique, les Pays-Bas, la France, et l’Allemagne) se trouva dans la même situation que les États-Unis. Là aussi des législations ...

  16. Former des enseignants pour faire apprendre aux élèves

    OpenAIRE

    Galand, Benoît; Entretiens Jacques Cartier, « Le déploiement à large échelle des meilleures pratiques pour soutenir la persévérance scolaire : un défi collectif. »

    2013-01-01

    Si le décrochage scolaire est clairement un phénomène multifactoriel, les recherches convergent pour mettre en avant le rôle proximal que joue l'expérience scolaire des élèves dans le processus d'abandon de l'école. Réfléchir aux pistes de prévention du décrochage en partant de ce constat amène à une série de défis imbriqués. Le premier de ces défis est d'identifier ce qui affecte l'expérience scolaire des élèves, pour la rendre plus positive. Il s'agit notamment de repérer les pratiques péda...

  17. Compartimentation microscopique: depuis les microchambres femtolitriques jusqu'aux particules pseudo-virales

    OpenAIRE

    Tresset, Guillaume

    2013-01-01

    Avec l'avènement de la microélectronique et des techniques de miniaturisation, de nouveaux domaines transdisciplinaires sont nés au confluent des sciences de l'ingénieur, de la matière et du vivant. La technologie a désormais investi l'échelle du nanomètre ; elle parvient à sonder, mais aussi surtout à façonner les constituants élémentaires de la matière synthétique et organique, depuis les atomes jusqu'aux complexes macromoléculaires. La nécessité d'isoler des molécules et des assemblages su...

  18. L'Ecole aux prises avec les idéologues de l'informatisation sociale

    OpenAIRE

    Thellen, Stéphane

    2002-01-01

    Cette communication s'inscrit dans une perspective sociologique de l'informatisation du champ éducatif. L'arrimage École / Société par le biais des nouvelles technologies de l'information et de la communication (NTIC) interpelle le sociologue, celui-ci s'étant toujours intéressé au procès de socialisation dans laquelle fut engagée l'École publique moderne. Or en ce début de 21ème siècle, le discours dominant sur l'informatisation des activités scolaires semble univoque : on prétend qu'aux pro...

  19. Observation spatiale et SIG: des outils pour cartographier les zones sensibles aux mouvements de terrain

    Directory of Open Access Journals (Sweden)

    Jean-Yves SCANVIC

    1994-12-01

    Full Text Available Les niveaux de sensibilité des sols aux mouvements de terrain ont été cartographiés dans différents bassins de risques en Bolivie, en Colombie et à Taïwan, selon une méthodologie développée au BRGM et fondée en partie sur l’extraction visuelle et numérique d’informations contenues dans les données de télédétection spatiale stéréoscopiques et leur gestion-valorisation dans un SIG. Ces cartes font apparaître l’intérêt de l’imagerie Spot pour la gestion du risque naturel.

  20. Kirchner (Klaus) et Hugel (André), Staline parle aux Alsaciens en Russie

    OpenAIRE

    Muller, Claude

    2012-01-01

    Ecrit à deux mains et en deux langues, l’ouvrage commun de l’Allemand Klaus Kirchner et du Français André Hugel est aussi à deux entrées. Dans une première partie, Klaus Kirchner présente des tracts de guerre soviétiques balancés sur le front russe, destinés aux Alsaciens incorporés de force dans l’armée allemande. Si l’essentiel de la documentation provient des recherches de Klaus Kirchner, certains tracts font partie de la collection personnelle d’André Hugel. Dans la seconde partie, André ...

  1. Aux vrais beaux biens : souvenirs autour de Max Ophuls

    OpenAIRE

    Müller, Martina

    2007-01-01

    En 1989 j’ai interrogé des collaborateurs de Max Ophuls qui avaient travaillé avec lui au théâtre, à la radio et au cinéma. Ces entretiens ont été enregistrés pour mon documentaire de quatre-vingt dix minutes : Max Ophuls. Aux vrais beaux biens, produit par la Westdeutscher Rundfunk, télévision allemande de Cologne. Cette émission – diffusée en 1990 et jamais présenté en France – est composée d’interviews et de commentaires de séquences. En outre on y entend la voix de Max Ophuls et on le voi...

  2. Alternatives aux traitements anthelminthiques en élevage biologique des ruminants

    OpenAIRE

    Hoste, Hervé; Cabaret, Jacques; Grosmond, G.; Guitard, J.-P.

    2009-01-01

    En termes de gestion sanitaire des troupeaux, les recommandations du règlement de la commission européenne du 5 septembre 2008 (CE 889/2008), remplaçant le REPAB, visent à restreindre le recours aux traitements chimiques pour gérer les pathologies. Elles privilégient en contre-partie les règles d’hygiène et le développement de la réponse immune de l’animal. Ces principes généraux se retrouvent et sont illustrés dans la gestion du parasitisme helminthique par les strongles gastro-intestinaux q...

  3. Jean-Philippe BELLEAU, Le mouvement indien au Brésil. Du village aux organisations

    OpenAIRE

    Fichet, Pascaline

    2015-01-01

    « Le mouvement indien au Brésil est un miracle », annonce l'accroche de la quatrième de couverture du dernier ouvrage de Jean-Philippe Belleau, Le mouvement indien au Brésil, Du village aux organisations. Depuis 1974, année de la première assemblée indigène brésilienne, les indiens du Brésil se sont progressivement constitués en acteurs modernes et éminents de l'espace politico-social national, à travers ce que l'auteur qualifiera de « mouvement indien » brésilien. Comment ces individus issus...

  4. Charles-Victor Langlois et Charles Seignobos, Introduction aux études historiques

    OpenAIRE

    Castellesi, Romain

    2014-01-01

    Positivistes, scientistes, fétichistes du document, généralistes : autant de qualificatifs utilisés par l’école des Annales, incarnées par un Lucien Febvre revanchard, et largement repris tout au long du XXe siècle pour critiquer les auteurs de L’Introduction aux études historiques, parue en 1898. L’intérêt nouveau suscité par l’ouvrage de Charles Seignobos et Charles-Victor Langlois signe t-il leur retour en grâce ? Dans sa préface inédite à cette nouvelle édition de l’ouvrage dans la toute ...

  5. Dreamlands : des parcs d’attractions aux cités du futur

    OpenAIRE

    Didelon, Valéry

    2012-01-01

    Comme l’exposition éponyme qui s’est tenue au Centre Pompidou au printemps et à l’été 2010, le catalogue Dreamlands entend nous éclairer sur ce qu’ont en commun les premières expositions universelles, Disneyland, Las Vegas et Dubaï. L’hypothèse est ainsi posée : depuis la fin du XIXe siècle, le parc d’attractions serait devenu aux yeux des artistes, des architectes et des urbanistes un modèle pour imaginer et construire la ville de demain. Comme le champ de foire avant lui, il est de facto un...

  6. Safety Training: Ergonomie - Sensibilisation aux gestes et postures de travail

    CERN Multimedia

    Laetitia Laddada

    2004-01-01

    Nous vous proposons un nouveau cours d'ergonomie (durée : 1 jour) Sensibilisation aux gestes et postures de travail. A l'issue de cette formation, vous serez capable d'adopter et d'appliquer les principes de base de sécurité physique et d'économie d'efforts dans les manipulations d'objets. Les cours sont pris en charge par la Commission de Sécurité. L'inscription EDH est obligatoire. Pour plus d'information, veuillez consulter les pages Formation & Développement (Groupe Sécurité). FORMATION EN SECURITE SAFETY TRAINING Laetitia Laddada 73811 - 79236 safety.training@cern.ch

  7. La présence perturbatrice du Front national aux élections municipales

    OpenAIRE

    Perrineau, Pascal

    2014-01-01

    Depuis sa percée électorale aux élections européennes de 1984, le Front national a toujours atteint ses meilleurs niveaux lors des élections nationales et particulièrement lors de l'élection-reine qu'est l'élection présidentielle. Dans les cinq élections présidentielles qui se sont tenues depuis lors, il rassemble en moyenne presque 15% des suffrages exprimés (tableau 1). Les deux autres séries d'élections dans lesquelles il dépasse la barre des 10% des suffrages exprimés (s.e.) sont les élec...

  8. Hanford Laboratories monthly activities report, March 1964

    Energy Technology Data Exchange (ETDEWEB)

    1964-04-15

    The monthly report for the Hanford Laboratories Operation, March 1964. Reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities, biology operation, and physics and instrumentation research, and applied mathematics operation, and programming operations are discussed.

  9. Hanford Laboratories monthly activities report, March 1963

    Energy Technology Data Exchange (ETDEWEB)

    1963-04-15

    This is the monthly report for the Hanford Laboratories Operation March 1963. Reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities, biology operation, physics and instrumentation research, operations research and synthesis, programming, and radiation protection operation are discussed.

  10. Multinational design evaluation programme - Annual report March 2013-March 2014

    International Nuclear Information System (INIS)

    The Multinational Design Evaluation Programme (MDEP) is a multinational initiative to leverage the resources and knowledge of national regulatory authorities who are, or will shortly be, undertaking the review of new reactor power plant designs. MDEP incorporates a broad range of activities including enhancing multilateral cooperation within existing regulatory frameworks, and increasing multinational convergence of codes, standards, guides, and safety goals. A key concept throughout the work of MDEP is that national regulators retain sovereign authority for all licensing and regulatory decisions. Working groups are implementing the activities in accordance with programme plans with specific activities and goals, and have established the necessary interfaces both within and outside of the MDEP members. In the past year, MDEP has expanded to include cooperation on the VVER and ABWR designs and additional members have begun participating in the programme to share their experiences on these design reviews. This report provides the current status of the programme. Significant progress is being made on the overall MDEP goals of increased cooperation and enhanced convergence of requirements and practices. In addition, the lessons learnt from the 11 March 2011, events at the Fukushima Daiichi nuclear power plant are being incorporated into MDEP activities through the programme plans of design-specific working groups (DSWG). On this topic, the EPR Working Group has issued a common position which will be supplemented by five technical appendices by the end of 2014. Other DSWG are in the process of drafting such common positions. Several DSWGs' are facilitating the MDEP programme goal of enhanced cooperation: the EPRWG, the Vendor Inspection Cooperation Working Group (VICWG), the Digital Instrumentation and Controls Working Group (DICWG), the Codes and Standards Working Group (CSWG). Accomplishments to date provide confidence that the MDEP membership, structure and processes

  11. Skin Barrier Dysfunction and the Atopic March

    DEFF Research Database (Denmark)

    Clausen, Maja-Lisa; Agner, Tove; Thomsen, Simon Francis

    The atopic diseases: atopic dermatitis, asthma and allergic rhinoconjunctivitis are frequent diseases in the population occurring sequentially in the young (the atopic march).The discovery of filaggrin gene (FLG) mutations and impairments in the skin barrier as predisposing factors for atopic......—with atopic dermatitis and FLG mutations being a prerequisite for the development of the other atopic diseases, particularly asthma. This review discusses the role of the skin barrier function, particularly the role of FLG mutations, in the atopic march....

  12. Modélisation pragmatiste de l'action didactique de l'enseignant. Le cas des démarches d'investigation en physique, en collège.

    OpenAIRE

    Calmettes, Bernard

    2012-01-01

    Les démarches d'investigation pour l'enseignement des sciences ont été introduites dans les programmes de Collège, en France, à partir de septembre 2006. Les didacticiens ont investi ce domaine de l'enseignement selon différentes options de recherche : propositions de séances, ingénieries didactiques, analyses de pratiques. À l'issue de ces études, il apparaît difficile de comprendre les écarts repérés entre les interprétations des didacticiens relativement aux perspectives ouvertes par les d...

  13. Adenosine Diphosphate Ribosylation Factor-GTPaseActivating Protein Stimulates the Transport of AUX1Endosome, Which Relies on Actin Cytoskeletal Organization in Rice Root DevelopmentF

    Institute of Scientific and Technical Information of China (English)

    Cheng Du; Yunyuan XU; Yingdian Wang; Kang Chong

    2011-01-01

    Polar auxin transport,which depends on polarized subcellular distribution of AUXIN RESISTANT 1/LIKE AUX1 (AUX1/LAX) influx carriers and PIN-FORMED (PIN) efflux carriers,mediates various processes of plant growth and development.Endosomal recycling of PIN1 is mediated by an adenosine diphosphate (ADP)ribosylation factor (ARF)-GTPase exchange factor protein,GNOM.However,the mediation of auxin influx carrier recycling is poorly understood.Here,we report that overexpression of OsAGAP,an ARF-GTPase-activating protein in rice,stimulates vesicle transport from the plasma membrane to the Golgi apparatus in protoplasts and transgenic plants and induces the accumulation of early endosomes and AUX1.AUX1 endosomes could partially colocalize with FM4-64 labeled early endosome after actin disruption.Furthermore,OsAGAP is involved in actin cytoskeletal organization,and its overexpression tends to reduce the thickness and bundling of actin filaments.Fluorescence recovery after photobleaching analysis revealed exocytosis of the AUX1 recycling endosome was not affected in the OsAGAP overexpression cells,and was only slightly promoted when the actin filaments were completely disrupted by Lat B.Thus,we propose that AUX1 accumulation in the OsAGAP overexpression and actin disrupted cells may be due to the fact that endocytosis of the auxin influx carrier AUX1 early endosome was greatly promoted by actin cytoskeleton disruption.

  14. Le travail, marchandise fictive ? 100 ans de marchandisation de la main d’œuvre mexicaine aux États-Unis

    Directory of Open Access Journals (Sweden)

    Yves-Marie Abraham

    2008-12-01

    Full Text Available Pour Karl Polanyi, la société de marché est impossible, car elle suppose de traiter le travail, la terre et la monnaie comme des marchandises, ce qui ne peut qu’être destructeur de la société. A partir d’une analyse de l’utilisation de la main d’œuvre mexicaine par les employeurs américains depuis 100 ans, nous tentons de montrer que cette marchandisation est tout à fait possible en ce qui concerne le travail. Elle consiste, dans son principe, à réduire l’être humain à sa seule force de travail, tout en restant dans le cadre formel du salariat. Dans le cas des travailleurs mexicains, qu’il s’agisse d’ouvriers agricoles bénéficiant d’un contrat de travail temporaire sur le sol américain, d’employés de maquiladoras sur le sol mexicain ou de travailleurs sans-papiers vivant aux États-Unis, la frontière territoriale entre les deux pays apparaît comme un moyen particulièrement efficace pour accomplir cette réduction. C’est dire aussi que cette marchandisation du travail n’est pas forcément la conséquence de la mise en place de marchés autorégulateurs, contrairement à ce que soutient Polanyi.For Karl Polanyi, market society is impossible, since it supposes that work, land and money be treated as merchandise, which can only destroy society. On the basis of the analysis of the utilisation of Mexican labor by US firms over 100 years, this paper tries to show that merchandisation is quite possible as concerns work. It reduces the human being to his sole work force, while staying in the formal context of salaried work. In the case of Mexican workers, whether it be farm workers with temporary contracts in the US, or employees of maquiladoras on the Mexican soil, or illegal workers in the US, the territorial frontier between the two countries apears a particularly efficient way to accomplish this redcuction. The merchandisation of work is not necessarily the consequence of the establishment of autoregulating

  15. FENDL/E-2.0. Evaluated nuclear data library of neutron-nucleus interaction cross sections and photon production cross sections and photon-atom interaction cross sections for fusion applications. Version 1, March 1997. Summary documentation

    International Nuclear Information System (INIS)

    This document presents the description of a physical tape containing the basic evaluated nuclear data library of neutron-nucleus interaction cross sections, photon production cross sections and photon-atom interaction cross sections for fusion applications. It is part of the evaluated nuclear data library for fusion applications FENDL-2. The data are available cost-free from the Nuclear Data Section upon request. The data can also be retrieved by the user via online access through international computer networks. (author)

  16. Hanford Environmental Analytical Methods (methods as of March 1990). Volume 2, Appendix A1-O and appendix A1-I

    Energy Technology Data Exchange (ETDEWEB)

    Goheen, S.C.; McCulloch, M.; Daniel, J.L.

    1993-05-01

    Techniques in use at the Hanford Reservation as of March, 1990 for the analysis of liquids, organic wastes, soils, and sediments, are described. Limitations and applications of the techniques are included.

  17. Official announcement of a recommendation of the Strahlenschutzkommission (Iodine instruction sheets - Application of iodine tablets for protection of the thyroid in the event of a nuclear accident). As of 30 March 1998

    International Nuclear Information System (INIS)

    The recommendation of the German SSK (radiation protection commission) covers two instruction sheets, one intended for the population, the other for medical personnel. The instructions refer to the application of iodine tablets for protection of the thyroid after a nuclear emergency and address all medical aspects as well as administrative and legal aspects. The full texts of the instruction sheets are reproduced. (CB)

  18. Utilisation de la chimie chromatogénique pour la conception et la réalisation de matériaux cellulosiques barrières à l'eau, aux graisses et aux gaz.

    OpenAIRE

    Stinga, Nicoleta Camelia

    2008-01-01

    La chimie chromatogénique est un nouveau procédé de chimie propre qui permet le greffage moléculaire de matériaux hydroxylés avec des acides gras à longue chaîne. Dans cette étude, elle a été appliquée à la conception et à la réalisation de matériaux cellulosiques présentant les propriétés barrière requises pour l'emballage alimentaire (barrière à l'eau, aux graisses, aux gaz ...). Dans un premier temps, nous avons voulu approfondir notre connaissance du mécanisme de la réaction de greffage d...

  19. Modélisation paramétrique non linéaire des machines asynchrones et démarche d'optimisation associée. Application au dimensionnement dans les véhicules hybrides.

    OpenAIRE

    Pugsley, Gareth

    2004-01-01

    In this work, we studied induction machines for automotive traction applications, more specifically, for hybrid vehicles. We developped the necessary models and methods to analyse and design such electric machines. First, we used a limited number of finite element computations to establish a non-linear electromagnetic model of the machine. This model was then adapted to study the sensitivity of the design for the most signifiant geometric variations. Thus, we can easily adapt a machine for ne...

  20. Science & Technology Review March 2010

    Energy Technology Data Exchange (ETDEWEB)

    Bearinger, J P

    2010-01-29

    This month's issue has the following articles: (1) Countering the Growing Chem-Bio Threat -- Commentary by Penrose (Parney) C. Albright; (2) Responding to a Terrorist Attack Involving Chemical Warfare Agents -- Livermore scientists are helping the nation strengthen plans to swiftly respond to an incident involving chemical warfare agents; (3) Revealing the Secrets of a Deadly Disease -- A Livermore-developed system helps scientists better understand how plague bacteria infect healthy host cells; (4) A New Application for a Weapons Code -- Simulations reveal for the first time how blast waves cause traumatic brain injuries; (5) Testing Valuable National Assets for X-Ray Damage -- Experiments at the National Ignition Facility are measuring the effects of radiation on critical systems; and (6) An Efficient Way to Harness the Sun's Power -- New solar thermal technology is designed to supply residential electric power at nearly half of the current retail price.

  1. Alkaline solid polymer electrolytes and their application to rechargeable batteries; Electrolytes solides polymeres alcalins application aux generateurs electrochimiques rechargeables

    Energy Technology Data Exchange (ETDEWEB)

    Guinot, S.

    1996-03-15

    A new family of solid polymer electrolytes (SPE) based on polyoxyethylene (POE), KOH and water is investigated in view of its use in rechargeable batteries. After a short review on rechargeable batteries, the preparation of various electrolyte compositions is described. Their characterization by differential scanning calorimetry (DSC), thermogravimetric analysis, X-ray diffraction and microscopy confirm a multi-phasic structure. Conductivity measurements give values up to 10 sup -3 S cm sup -1 at room temperature. Their use in cells with nickel as negative electrode and cadmium or zinc as positive electrode has been tested; cycling possibility has been shown to be satisfactory. (C.B.) 113 refs.

  2. Application of the decree 2910 for coal fired boilers; Application de l`arrete 2910 aux chaudieres a charbon

    Energy Technology Data Exchange (ETDEWEB)

    Hing, K. [CDF Energie, Charbonnages de France, 92 - Rueil-Malmaison (France)

    1997-12-31

    The impacts of the new French decree 2910 concerning the classification of all combustion equipment with regards to their energy sources, energy efficiency and pollution control, on 2 to 20 MW coal-fired boilers, are discussed, with emphasis on their pollutant emissions (SO{sub 2}, NO{sub x} and ashes). The compositions of several coals is presented and the various types of coal-fired boilers adapted to the new decree are presented: automatic boilers, dense fluidized bed boilers, vibrating and chain grids with fume tubes and water tubes

  3. MANAGEMENT BOARD MEETING OF 28 MARCH 2002

    CERN Multimedia

    2002-01-01

    Outcome of the March Meetings of the Scientific Policy Committee, Finance Committee and Committee of Council and of the Extraordinary March Council Session Summarising the main issues examined at the March meetings, the Director-General reported that, in the context of the ongoing discussions on the financing of LHC to completion, the Management had presented a series of documents covering the status and schedule of the LHC machine, experiments and computing, preliminary orientations for the CERN scientific programme and estimated resources for the years 2002-2010, and envisaged changes in the Organization's management and control structures. The committees had expressed general support for the direction of the Management's proposals, recognising that they represented work in progress and that final proposals would be submitted in June 2002, taking account of the conclusions and recommendations of the internal task forces and of the External Review Committee. The Finance Committee and Committee of Council had...

  4. Forum Engelberg, 1-4 March 2004

    CERN Multimedia

    2004-01-01

    The 2004 Forum Engelberg will pay tribute to its President, Hubert Curien, a former President of the CERN Council and former French Minister for Research. The subject of this year's conference, which will take place in Lucerne from 1st to 4th March 2004, is "Science on the Agenda of European Politics." This year, there will be talks by numerous speakers, including the directors of the seven European intergovernmental scientific organisations (EIROforum) and the European Commissioner for Research, Philippe Busquin. The highlights of the conference will include an Interdisciplinary Scientific Programme on 2nd and 3rd March, a session on e-science and the Grid on 4th March and a Young Scientists Programme. The programme and registration forms are available at http://www.forum-engelberg.org/

  5. Inégalités sociales dans le renoncement aux soins de santé et dans leur utilisation

    OpenAIRE

    Tchicaya, Anastase; Lorentz, Nathalie

    2011-01-01

    Cette recherche se focalise sur l’analyse des inégalités sociales associées à l’accès et à l’utilisation des services de soins médicaux et hospitaliers au Luxembourg. Les données utilisées proviennent des enquêtes PSELL3/EU-SILC réalisées chaque année sur un échantillon représentatif de la population luxembourgeoise vivant en ménage privé. Des indicateurs d’accès aux soins (ou de renoncement aux soins) et d’utilisation des services de santé sont définis et les principales mesures d’inégalité ...

  6. Annliese Nef, Conquérir et gouverner la Sicile islamique aux XIe et XIIe siècles

    OpenAIRE

    Lejbowicz, Max

    2012-01-01

    625 pages de texte abondamment annotées, 106 d’annexes de nature diverse (iconographique, tabulaire, lexicographique, onomastique), 57 consacrées aux Sources et bibliographie, 13 à quatre Index, 5 aux abréviations, sans compter, intégrés au texte, sept figures (en fait des cartes et des plans) et dix-huit tableaux : l’ouvrage sous examen a l’épaisseur et le sérieux d’une thèse. Plus précisément : il est « la version profondément remaniée d’une thèse de doctorat soutenue en 2001 » (p. 9). Rapp...

  7. Periodicity, Electronic Structures, and Bonding of Gold Tetrahalides [AuX4](-) (X = F, CI, Br, I, At, Uus)

    Energy Technology Data Exchange (ETDEWEB)

    Li, Wan-Lu; Li, Yong; Xu, Congqiao; Wang, Xue B.; Vorpagel, Erich R.; Li, Jun

    2015-12-07

    Systematic theoretical and experimental investigations have been performed to understand the periodicity and electronic structures of trivalent-gold halides using gold tetrahalides [AuX4]⁻ anions (X = F, Cl, Br, I, At, Uus). The [AuX4]⁻ (X = Cl, Br, I) anions were produced in gas phase and their negative-ion photoelectron spectra were obtained, which exhibited rich and well-resolved spectral peaks. We calculated the adiabatic as well as vertical electron detachment energies using density functional methods with scalar and spin-orbit coupling relativistic effects. The simulated photoelectron spectra based on these calculations are in good agreement with the experimental spectra. Our results show that the trivalent Au(III) oxidation state becomes progressively less stable while Au(I) is preferred when the halides become heavier along the Period Table. This trend reveals that the oxidation state of metals in complexes can be manipulated through ligand design

  8. L’utilisation du vaccin contre l’influenza chez les enfants allergiques aux œufs

    OpenAIRE

    Hui, Charles PS; MacDonald, Noni E

    2011-01-01

    Les enfants sont plus vulnérables à la morbidité attribuable à l’influenza. Les vaccins contre l’influenza sont cultivés sur des œufs et pour cette raison, une infime quantité de protéines d’œuf persiste dans leur composition. De récentes recherches et de nouveaux paramètres de pratique suscités par la pandémie mondiale d’influenza de 2009 ont remis en question la décision de ne pas administrer le vaccin contre l’influenza aux patients allergiques aux œufs. Selon les données disponibles, l’an...

  9. La douleur aux urgences: quelles interventions permettent à l'infirmière d'optimiser la prise en charge ?

    OpenAIRE

    Badan, Aurélie; Bouchard, Sara; Borloz, Corinne

    2015-01-01

    La douleur est le principal motif d'admission aux urgences. Les spécificités de ce domaine font que les soignants rencontrent certains obstacles qui limitent la qualité de la prise en charge. L'infirmière joue un rôle déterminant dans le soulagement de la douleur et possède de nombreuses responsabilités quant à la qualité de la prise en charge.

  10. Distribution et extension de la résistance chloroplatique aux atrazines chez les adventices annuelles en France

    OpenAIRE

    GASQUEZ, Jacques; BARRALIS, Gilbert; Aigle, N.

    1982-01-01

    La résistance chloroplastique aux triazines a été observée en France chez 13 espèces, dont les auteurs précisent l’importance agronomique et la distribution géographique ; les 3 espèces qui présentent la plus grande dispersion sont Amaranthus retroflexus L., Chenopodium album L. et Solanum nigrum L.

  11. Second meeting of the Atomic and Molecular Data Centre network. Fontenay aux Roses, 23-24 May 1980

    International Nuclear Information System (INIS)

    Summary report of the Second A+M Data Centre Network (DCN) meeting convened by the IAEA Nuclear Data Section at the CEA Laboratory at Fontenay-aux-Roses, France, 23-24 May 1980. The meeting was attended by 20 representatives from centres and groups from six Member States concerned with the coordinated international management of atomic and molecular data pertinent to controlled fusion research and technology

  12. Phloem-specific expression of a melon Aux/IAA in tomato plants alters auxin sensitivity and plant development

    Directory of Open Access Journals (Sweden)

    Guy eGolan

    2013-08-01

    Full Text Available Phloem sap contains a large repertoire of macromolecules in addition to sugars, amino acids, growth substances and ions. The transcription profile of melon phloem sap contains over 1,000 mRNA molecules, most of them associated with signal transduction, transcriptional control, and stress and defense responses. Heterografting experiments have established the long-distance trafficking of numerous mRNA molecules. Interestingly, several trafficking transcripts are involved in the auxin response, including two molecules coding for auxin/indole acetic acid (Aux/IAA. To further explore the biological role of the melon Aux/IAA transcript CmF-308 in the vascular tissue, a cassette containing the coding sequence of this gene under a phloem-specific promoter was introduced into tomato plants. The number of lateral roots was significantly higher in transgenic plants expressing CmF-308 under the AtSUC2 promoter than in controls. A similar effect on root development was obtained after transient expression of CmF-308 in source leaves of N. benthamiana plants. An auxin-response assay showed that CmF-308-transgenic roots are more sensitive to auxin than control roots. In addition to the altered root development, phloem-specific expression of CmF-308 resulted in shorter plants, a higher number of lateral shoots and delayed flowering, a phenotype resembling reduced apical dominance. In contrast to the root response, cotyledons of the transgenic plants were less sensitive to auxin than control cotyledons. The reduced auxin sensitivity in the shoot tissue was confirmed by lower relative expression of several Aux/IAA genes in leaves and an increase in the relative expression of a cytokinin-response regulator, TRR8/9b. The accumulated data suggest that expression of Aux/IAA in the phloem modifies auxin sensitivity in a tissue-specific manner, thereby altering plant development.

  13. ITER ITA Newsletter. No. 29, March 2006

    International Nuclear Information System (INIS)

    This issue of ITER ITA (ITER transitional Arrangements) newsletter contains concise information about ITER related activities and meetings, namely, the ITER Director-General Nominee, Dr. Kaname Ikeda, took up his position as ITER Project Leader in Cadarache on 13 March, the consolidation of information technology infrastructure for ITER and about he Thirty-Fifth Meeting of the Fusion Power Co-ordinating Committee (FPCC), which was held on 28 February-1 March 2006 at the headquarters of the International Energy Agency (IEA) in Paris

  14. Travel Along The Long March Route

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>At the invi-tation of the China-Ja-pan Friendship Association(CJFA),the delegation for studying the Chinese peo-ple’s revolu-tionary wars(Long March delegation for short)orga-nized by the Japan Iskra In-dustry Compa-ny Ltd.came to China to travel along the route of the Red Army’s Long March in Si-chuan Province to learn the Chinese revo-lutionary spirit from October 25 to 31,2007.

  15. FENDL/C-2.0. Charged-particle reaction data library for fusion applications. Version 1 of March 1997. Data extracted from ENDF/B-6 evaluations. Summary documentation

    International Nuclear Information System (INIS)

    This document describes the FENDL/C-2.0 charged-particle reaction data library which is a sublibrary of FENDL-2, the evaluated nuclear data library for fusion applications. This file contains evaluated data in ENDF-6 format for the D(d,n), D(d,p), T(d,n), T(t,2n), He-3(d,p) reactions. The processed information, i.e. Maxwellian-averaged reaction rates, and related quantities, calculated from reaction cross-sections, are also included. The data are available from the Nuclear Data Section online via INTERNET by FTP command, or on magnetic tape upon request. (author)

  16. Shoot-supplied ammonium targets the root auxin influx carrier AUX1 and inhibits lateral root emergence in Arabidopsis

    KAUST Repository

    Li, Baohai

    2011-03-24

    Deposition of ammonium (NH4 +) from the atmosphere is a substantial environmental problem. While toxicity resulting from root exposure to NH4 + is well studied, little is known about how shoot-supplied ammonium (SSA) affects root growth. In this study, we show that SSA significantly affects lateral root (LR) development. We show that SSA inhibits lateral root primordium (LRP) emergence, but not LRP initiation, resulting in significantly impaired LR number. We show that the inhibition is independent of abscisic acid (ABA) signalling and sucrose uptake in shoots but relates to the auxin response in roots. Expression analyses of an auxin-responsive reporter, DR5:GUS, and direct assays of auxin transport demonstrated that SSA inhibits root acropetal (rootward) auxin transport while not affecting basipetal (shootward) transport or auxin sensitivity of root cells. Mutant analyses indicated that the auxin influx carrier AUX1, but not the auxin efflux carriers PIN-FORMED (PIN)1 or PIN2, is required for this inhibition of LRP emergence and the observed auxin response. We found that AUX1 expression was modulated by SSA in vascular tissues rather than LR cap cells in roots. Taken together, our results suggest that SSA inhibits LRP emergence in Arabidopsis by interfering with AUX1-dependent auxin transport from shoot to root. © 2011 Blackwell Publishing Ltd.

  17. Periodicity, Electronic Structures, and Bonding of Gold Tetrahalides [AuX4]- (X = F, Cl, Br, I, At, Uus).

    Science.gov (United States)

    Li, Wan-Lu; Li, Yong; Xu, Cong-Qiao; Wang, Xue-Bin; Vorpagel, Erich; Li, Jun

    2015-12-01

    Systematic theoretical and experimental investigations have been performed to understand the periodicity, electronic structures, and bonding of gold halides using tetrahalide [AuX4](-) anions (X = F, Cl, Br, I, At, Uus). The [AuX4](-) (X = Cl, Br, I) anions were experimentally produced in the gas phase, and their negative-ion photoelectron spectra were obtained, exhibiting rich and well-resolved spectral peaks. As expected, Au-X bonds in such series contain generally increasing covalency when halogen ligands become heavier. We calculated the adiabatic electron detachment energies as well as vertical electron detachment energies using density functional theory methods with scalar relativistic and spin-orbit coupling effects. The computationally simulated photoelectron spectra are in good agreement with the experimental ones. Our results show that the trivalent Au(III) oxidation state becomes progressively less stable while Au(I) tends to be preferred when the halides become heavier along the Periodic Table. This series of molecules provides an example for manipulating the oxidation state of metals in complexes through ligand design. PMID:26550845

  18. NASA Tech Briefs, March 2008

    Science.gov (United States)

    2008-01-01

    Topics covered include: WRATS Integrated Data Acquisition System; Breadboard Signal Processor for Arraying DSN Antennas; Digital Receiver Phase Meter; Split-Block Waveguide Polarization Twist for 220 to 325 GHz; Nano-Multiplication-Region Avalanche Photodiodes and Arrays; Tailored Asymmetry for Enhanced Coupling to WGM Resonators; Disabling CNT Electronic Devices by Use of Electron Beams; Conical Bearingless Motor/Generators; Integrated Force Method for Indeterminate Structures; Carbon-Nanotube-Based Electrodes for Biomedical Applications; Compact Directional Microwave Antenna for Localized Heating; Using Hyperspectral Imagery to Identify Turfgrass Stresses; Shaping Diffraction-Grating Grooves to Optimize Efficiency; Low-Light-Shift Cesium Fountain without Mechanical Shutters; Magnetic Compensation for Second-Order Doppler Shift in LITS; Nanostructures Exploit Hybrid-Polariton Resonances; Microfluidics, Chromatography, and Atomic-Force Microscopy; Model of Image Artifacts from Dust Particles; Pattern-Recognition System for Approaching a Known Target; Orchestrator Telemetry Processing Pipeline; Scheme for Quantum Computing Immune to Decoherence; Spin-Stabilized Microsatellites with Solar Concentrators; Phase Calibration of Antenna Arrays Aimed at Spacecraft; Ring Bus Architecture for a Solid-State Recorder; and Image Compression Algorithm Altered to Improve Stereo Ranging.

  19. Pollution diffuse de l’eau en milieu rural et marché des permis d’émission : les enseignements de l’expérience américaine

    OpenAIRE

    Verchere, Alban

    2011-01-01

    Cet article s’interroge sur l’emploi de marchés de permis dans la lutte contre la pollution diffuse de l’eau en milieu rural. Après avoir expliqué les problèmes particuliers posés par cette pollution, le fonctionnement des marchés de permis appliqués à ce type de pollutions est exposé, avant de livrer la synthèse de deux expériences mises en œuvre aux Etats-Unis. Une revue des conditions qui peuvent favoriser le succès d’un tel mode de régulation permet de conclure, étant entendu que les cas ...

  20. Report on transparency and nuclear safety - Fontenay-aux-Roses CEA centre - 2012

    International Nuclear Information System (INIS)

    This report presents the different nuclear base installations (INB) of the Fontenay-aux-Roses CEA centre, gives an overview of measures regarding safety within these installations (organisation, general arrangements, arrangements related to different risks, defence in-depth, management of emergency situations, inspections, audits and second-level controls, arrangements and main events specific to the different installations and buildings, issues related to transports, soil radiological assessment) and measures related to radiation protection (organisation and results). It reports the significant events related to safety and radiation protection which occurred in 2012 and were declared to the ASN, and discusses how the return-on-experience has been used. It reports and comments the results of measurements of radiological and chemical gaseous and liquid effluents, of surveys of the environment. It also evokes important events related to these measurement and survey processes, presents the environmental management approach. The next part addresses the management of radioactive wastes: arrangements aimed at limiting the volume of warehoused wastes, and at limiting their impact on health and on the environment, nature and quantities of warehoused wastes. The different arrangements regarding transparency and information are reviewed (TSN report, newsletter, and so on)

  1. Desenvolvimento de ferramenta computacional para auxílio ao projeto de gemas lapidadas

    Directory of Open Access Journals (Sweden)

    Luiz S Martins-Filho

    2005-12-01

    Full Text Available Esse trabalho apresenta um estudo sobre ferramenta computacional para auxílio ao projeto de lapidação de gemas. O material escolhido para o estudo é o quartzo hialino. São apresentados aspectos de desenvolvimento histórico do processamento de gemas e também os diagramas de lapidação e seus principais parâmetros. Para a determinação do grau de eficiência de um modelo de lapidação, são propostos dois critérios: a brilhância e o aproveitamento em peso. A ferramenta computacional, a ser utilizada na estimação desses resultados de um determinado projeto, baseia-se nas redes neurais artificiais. A validação da ferramenta proposta utiliza testes sobre dados de 62 diferentes projetos de lapidação.This paper presents a study on a Computer-aided-design (CAD tool for lapidary design. The material chosen is rock crystal quartz. Aspects of historical development of gemstone lapidary, faceting diagrams and faceting parameters are presented. Two criteria are proposed to assess the efficiency of a given lapidary design: brilliance and yield. To estimate these two results, the tool developed is based on artificial neural networks. Tests with 62 different lapidary designs were used to validate the proposed CAD tool.

  2. A Quantum Multicritical point in CeCu6-xAux

    International Nuclear Information System (INIS)

    Full text: CeCu6-xAux is a well-known heavy-fermion system in which the ground state is antiferromagnetically ordered for x > 0.1 and temperatures below 1K. Non-Fermi-liquid behaviour occurs around this critical concentration. The parent compound, CeCu6, exhibits a structural phase transition near 230K, where it changes from the Pnma orthorhombic room-temperature structure to the P21/c monoclinic structure. The monoclinicity increases as temperature falls, with β reaching 91.44 degrees at 10K. In the work presented here, powder neutron diffraction is used to explore the monoclinicity at 10K as a function of composition for 0.0 2, suggests that the distortion vanishes by x = 0.14. A reanalysis of single-crystal diffraction data on the magnetically ordered side of the phase diagram indicate that long-range order disappears at the same critical concentration. At a minimum, the structural distortion and antiferromagnetism seem to be competing with each other, and this raises the intriguing possibility that lattice degrees of freedom are important in the non-Fermi-liquid regime. (authors)

  3. Field-induced quantum criticality in CeCu6-xAux

    International Nuclear Information System (INIS)

    The heavy-fermion system CeCu6-xAux is an archetype for pressure-induced quantum criticality at the onset of antiferromagnetic order. Up to now, investigations focused mainly on the behavior close to the critical concentration xc∼0.1. The antiferromagnetic order of samples with higher Au content can, however, be also suppressed by magnetic fields. We studied the field-induced quantum critical behavior of samples with Au contents x=0.3, 0.5 and 1.0 in fields applied along the magnetic easy axis by using thermal expansion and magnetostriction measurements. Due to their high sensitivities these measurements are especially suited to expose deviations from Fermi-liquid behavior. The measurements have been performed for temperatures ranging between 20 mK and 10 K, and in magnetic fields up to 14 T. With increasing Au content and critical field Bc they show strongly varying critical behavior. We discuss our results taking into account the field-dependent Zeeman splitting of the CEF ground-state doublet, which manifests itself as a Schottky-like anomaly at low temperatures and fields larger than Bc.

  4. Phloem-Mobile Aux/IAA Transcripts Target to the Root Tip and Modify Root Architecture

    Institute of Scientific and Technical Information of China (English)

    Michitaka Notaguchi; Shmuel Wolf; William J. Lucas

    2012-01-01

    In plants,the phloem is the component of the vascular system that delivers nutrients and transmits signals from mature leaves to developing sink tissues.Recent studies have identified proteins,mRNA,and small RNA within the phloem sap of several plant species.It is now of considerable interest to elucidate the biological functions of these potential long-distance signal agents,to further our understanding of how plants coordinate their developmental programs at the whole-plant level.In this study,we developed a strategy for the functional analysis of phloem-mobile mRNA by focusing on IAA transcripts,whose mobility has previously been reported in melon (Cucumis melo cv.Hale's Best Jumbo).Indoleacetic acid (IAA) proteins are key transcriptional regulators of auxin signaling,and are involved in a broad range of developmental processes including root development.We used a combination of vasculature-enriched sampling and hetero-grafting techniques to identify IAA18 and IAA28 as phloemmobile transcripts in the model plant Arabidopsis thaliana.Micro-grafting experiments were used to confirm that these IAA transcripts,which are generated in vascular tissues of mature leaves,are then transported into the root system where they negatively regulate lateral root formation.Based on these findings,we present a model in which auxin distribution,in combination with phloem-mobile AuxIIAA transcripts,can determine the sites of auxin action.

  5. Les Politiques de l'expertise psychiatrique. Enjeux, démarches et terrains.

    Directory of Open Access Journals (Sweden)

    Samuel Lézé

    2008-11-01

    Full Text Available Dans le cadre judiciaire, l'expertise psychiatrique est un objet de controverse, invoquée ou répudiée, mais rarement étudiée pour elle-même. Dans une perspective d'anthropologie politique de la santé mentale attentive à la conjoncture sociale (problème de la récidive, aux logiques professionnelles (évaluation de la dangerosité et aux pratiques frontières (aux confins du monde carcéral et médical, cet article a pour objectif programmatique de dégager les enjeux méthodologiques et théoriques d'une étude de i la fabrication psychiatrique du rapport d'expert, ii son exploitation judiciaire, iii ses conséquences sur les soins psychiatriques en prison et au-delà. Comment l'expertise fait-elle autorité ou, au contraire, est-elle contestée ? Quels en sont les enjeux politiques ? Ainsi peut se dégager à partir de terrains ethnographiques circonscrits la complexité des politiques de l'expertise psychiatrique impliquée dans les relations entre théories juridiques et psychiatriques de la personnalité d'une part, et les modalités opératoires de réception et d'application effective de la justice d'autre part.In the judicial field, the psychiatric expertise is an object of controversy, called upon or rejected, but rarely studied for itself. With a political anthropology of mental health perspective interested in the social conjuncture (recidivism problem, professional logic (dangerousness assessment and boundary practice (between medicine and prison, the programmatic aim of this article is to study the theoretical and methodological stake of a research on: i the production of expertise files; ii its judicial uses; iii its consequences into the psychiatric treatment in prison and anywhere else. How does psychiatric expertise set up authority or, on the contrary challenged? What are the political stakes? From fieldworks, we can enlighten complexities of the politics of psychiatric expertise in the relation between judicial and

  6. Biological applications and effects of optical masers. Annual report, 16 March 1984-15 March 1985

    Energy Technology Data Exchange (ETDEWEB)

    Ham, W.T.; Mueller, H.A.; Ruffolo, J.J.; Cleary, S.F.; Guerry, R.K.

    1985-09-01

    Histological studies on the right eye of a monkey exposed three and one half years ago to the Miles prototype GaAs laser confirm the visual acuity tests performed on this animal. There was no histological evidence of retinal damage. The aphakic eye of a monkey exposed to near-uv radiation under high blood-oxygen tension was examined. There was widespread cone destruction and extensive damage to the RPE at radiant exposures well below the threshold for monkeys under normal oxygenation conditions. Very small lesions produced in the monkey macula by 40-microsecond pulses of 647 nm argon-krypton laser light at 1600 pulses per second were examined. The effects of the intravenous injection of superoxide dismutase (SOD), catalase, and SOD + catalase on the blue-light retinal lesion, inflicted both before and after injection, were studied by in vivo observation. The threshold for photic damage to the retina for a period of two years. Threshold data on argon-krypton laser pulse trains at two wavelengths have been obtained for pulse repetition frequencies and exposure times. Trained rhesus monkeys exposed to 5mW/sq cm of a near-uv continuous spectrum on a daily basis showed no lenticular changes between exposed and control eye when examined biomicroscopically.

  7. NASA Tech Briefs, March 2014

    Science.gov (United States)

    2014-01-01

    -Pressure Turbulent Flows; and Resource-Constrained Application of Support Vector Machines to Imagery.

  8. NASA Tech Briefs, March 2011

    Science.gov (United States)

    2011-01-01

    Topics covered include: Optimal Tuner Selection for Kalman-Filter-Based Aircraft Engine Performance Estimation; Airborne Radar Interferometric Repeat-Pass Processing; Plug-and-Play Environmental Monitoring Spacecraft Subsystem; Power-Combined GaN Amplifier with 2.28-W Output Power at 87 GHz; Wallops Ship Surveillance System; Source Lines Counter (SLiC) Version 4.0; Guidance, Navigation, and Control Program; Single-Frame Terrain Mapping Software for Robotic Vehicles; Auto Draw from Excel Input Files; Observation Scheduling System; CFDP for Interplanetary Overlay Network; X-Windows Widget for Image Display; Binary-Signal Recovery; Volumetric 3D Display System with Static Screen; MMIC Replacement for Gunn Diode Oscillators; Feature Acquisition with Imbalanced Training Data; Mount Protects Thin-Walled Glass or Ceramic Tubes from Large Thermal and Vibration Loads; Carbon Nanotube-Based Structural Health Monitoring Sensors; Wireless Inductive Power Device Suppresses Blade Vibrations; Safe, Advanced, Adaptable Isolation System Eliminates the Need for Critical Lifts; Anti-Rotation Device Releasable by Insertion of a Tool; A Magnetically Coupled Cryogenic Pump; Single Piezo-Actuator Rotary-Hammering Drill; Fire-Retardant Polymeric Additives; Catalytic Generation of Lift Gases for Balloons; Ionic Liquids to Replace Hydrazine; Variable Emittance Electrochromics Using Ionic Electrolytes and Low Solar Absorptance Coatings; Spacecraft Radiator Freeze Protection Using a Regenerative Heat Exchanger; Multi-Mission Power Analysis Tool; Correction for Self-Heating When Using Thermometers as Heaters in Precision Control Applications; Gravitational Wave Detection with Single-Laser Atom Interferometers; Titanium Alloy Strong Back for IXO Mirror Segments; Improved Ambient Pressure Pyroelectric Ion Source; Multi-Modal Image Registration and Matching for Localization of a Balloon on Titan; Entanglement in Quantum-Classical Hybrid; Algorithm for Autonomous Landing; Quantum-Classical Hybrid

  9. Echecs de marchés et pauvreté : l’exemple de la filière cacao en Côte d’Ivoire

    Directory of Open Access Journals (Sweden)

    Araujo Bonjean Catherine

    2001-11-01

    Full Text Available La question posée ici est donc de savoir si, dans une économie où les défaillances de marché sont multiples, le désengagement de l’État a conduit à une amélioration du bien-être des planteurs, plus particulièrement des pauvres, ou non. Nous montrons, dans un premier point, que la libéralisation a entraîné une rupture dans le mode de coordination des agents au sein de la filière, rupture dont les conséquences sur la pauvreté sont ensuite examinées. Quatre critères de pauvreté sont considérés [2] : le niveau de revenu, la vulnérabilité face au risque de revenu, l’accès aux biens et services publics et la participation des paysans aux décisions au sein de la filière.

  10. Modélisation paramétrique non linéaire des machines asynchrones et démarche d'optimisation associée. Application au dimensionnement dans les véhicules hybrides.

    OpenAIRE

    Pugsley, Gareth

    2004-01-01

    Ce travail concerne l'étude des machines asynchrones à cage dans les applications de traction automobile, en particulier pour les véhicules hybrides. Nous avons développé des modèles et des méthodes utiles pour analyser et dimensionner de telles machines électriques. Nous avons tout d'abord mis au point un modèle électromagnétique non linéaire de la machine, déterminé à partir d'un nombre restreint de calculs "éléments finis". Ce modèle a ensuite été adapté pour réaliser des études de sensibi...

  11. NASA Tech Briefs, March 2012

    Science.gov (United States)

    2012-01-01

    The topics include: 1) Spectral Profiler Probe for In Situ Snow Grain Size and Composition Stratigraphy; 2) Portable Fourier Transform Spectroscopy for Analysis of Surface Contamination and Quality Control; 3) In Situ Geochemical Analysis and Age Dating of Rocks Using Laser Ablation-Miniature Mass Spectrometer; 4) Physics Mining of Multi-Source Data Sets; 5) Photogrammetry Tool for Forensic Analysis; 6) Connect Global Positioning System RF Module; 7) Simple Cell Balance Circuit; 8) Miniature EVA Software Defined Radio; 9) Remotely Accessible Testbed for Software Defined Radio Development; 10) System-of-Systems Technology-Portfolio-Analysis Tool; 11) VESGEN Software for Mapping and Quantification of Vascular Regulators; 12) Constructing a Database From Multiple 2D Images for Camera Pose Estimation and Robot Localization; 13) Adaption of G-TAG Software for Validating Touch and Go Asteroid Sample Return Design Methodology; 14) 3D Visualization for Phoenix Mars Lander Science Operations; 15) RxGen General Optical Model Prescription Generator; 16) Carbon Nanotube Bonding Strength Enhancement Using Metal Wicking Process; 17) Multi-Layer Far-Infrared Component Technology; 18) Germanium Lift-Off Masks for Thin Metal Film Patterning; 19) Sealing Materials for Use in Vacuum at High Temperatures; 20) Radiation Shielding System Using a Composite of Carbon Nanotubes Loaded With Electropolymers; 21) Nano Sponges for Drug Delivery and Medicinal Applications; 22) Molecular Technique to Understand Deep Microbial Diversity; 23) Methods and Compositions Based on Culturing Microorganisms in Low Sedimental Fluid Shear Conditions; 24) Secure Peer-to-Peer Networks for Scientific Information Sharing; 25) Multiplexer/Demultiplexer Loading Tool (MDMLT); 26) High-Rate Data-Capture for an Airborne Lidar System; 27) Wavefront Sensing Analysis of Grazing Incidence Optical Systems; 28) Foam-on-Tile Damage Model; 29) Instrument Package Manipulation Through the Generation and Use of an Attenuated

  12. Irradiation Processing Department monthly report, March 1962

    Energy Technology Data Exchange (ETDEWEB)

    1962-04-15

    This document details activities of the irradiation processing department during the month of March, 1962. A general summary is included at the start of the report, after which the report is divided into the following sections: Research and Engineering Operations; Production and Reactor Operations; Facilities Engineering Operation; and NPR Project.

  13. Powernext futures statistics - March 31, 2006

    International Nuclear Information System (INIS)

    The introduction of a power exchange in France is a direct response to the opening up of the European electricity markets. Powernext SA is a Multilateral Trading Facility in charge of managing an optional and anonymous organised exchange offering: - Day-ahead contracts for the management of volume risk on Powernext Day-AheadTM since 21 November 2001, - Medium term contracts for the management of price risk on Powernext FuturesTM since 18 June 2004. This document presents in a series of tables and graphics the March 31, 2006 update of Powernext FuturesTM statistics: year, quarter and month contracts for March 2006, base-load and peak-load contracts overview from October 2005 to March 2006 (daily volume in lots, open interest by delivery year in MWh, daily settlement price of the upcoming delivery period, base-load and peak-load price spreads), and market liquidity in March 2006 (average bid ask spread and availability). (J.S.)

  14. Hanford Works monthly report, March 1949

    Energy Technology Data Exchange (ETDEWEB)

    Prout, G.R.

    1949-04-19

    This is a progress report of the production reactors on the Hanford Reservation for the month of March 1949. This report takes each division (e.g. manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month. (MB)

  15. Lightcurve Photometry Opportunities: January-March 2009

    Science.gov (United States)

    Warner, Brian D.; Harris, Alan W.; Pravec, Petr; Durech, Josef; Benner, Lance A. M.

    2009-01-01

    We present here four lists of “targets of opportunity” for the period 2009 January - March. The first list is those asteroids reaching a favorable apparition during this period, are rotation rate. Don’t hesitate to solicit help from other observers at widely spread longitudes should the initial findings show that a single station may not be able to finish the job.

  16. Hanford Works monthly report, March 1951

    Energy Technology Data Exchange (ETDEWEB)

    Prout, G.R.

    1951-04-20

    This is a progress report of the production reactors on the Hanford Reservation for the month of March 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.

  17. CNN Newsroom Classroom Guides, March 2000.

    Science.gov (United States)

    Turner Educational Services, Inc., Newtown, PA.

    These classroom guides, designed to accompany the daily CNN (Cable News Network) Newsroom broadcasts for the month of March, provide program rundowns, suggestions for class activities and discussion, Web links, and a list of related news terms. Top stories include: primary victories in the Bush campaign and preparations by Gore and Bradley for the…

  18. CNN Newsroom Classroom Guides, March 2002.

    Science.gov (United States)

    Cable News Network, Atlanta, GA.

    These classroom guides, designed to accompany the daily CNN (Cable News Network) Newsroom broadcasts for the month of March 2002, provide program rundowns, suggestions for class activities and discussion, student handouts, and a list of related news terms. Lead stories include: the U.S. expands the War on Terrorism into the Republic of Georgia and…

  19. CNN Newsroom Classroom Guides, March 2001.

    Science.gov (United States)

    Cable News Network, Atlanta, GA.

    These classroom guides, designed to accompany the daily CNN (Cable News Network) Newsroom broadcasts for the month of March 2001, provide program rundowns, suggestions for class activities and discussion, student handouts, and a list of related news terms. Top stories include: Seattle earthquake and U.S. economy working class communities fear a…

  20. Développement de la production et des marchés de viande caprine et systèmes d’innovation : Présentation de quelques exemples dans plusieurs régions du monde et enseignements sur les facteurs de réussite de ces initiatives

    OpenAIRE

    Dubeuf, Jean-Paul

    2012-01-01

    Le marché de la viande caprine a été longtemps limité à l’autoconsommation ou aux marchés locaux. Dans de nombreuses régions du monde et face à la demande croissante de viande, ce marché connait actuellement de profondes mutations et la viande caprine connait un véritable engouement. Ces changements ont commencé à modifier les représentations que les institutions et la société avaient de ces activités, longtemps perçues comme marginales. Ils nécessitent par ailleurs des réorganisations au niv...

  1. marche incrémentale pour l'évaluation d'un modèle multi-agent en éthologie

    OpenAIRE

    Thomas, Vincent; Bourjot, Christine; Chevrier, Vincent; Desor, Didier

    2007-01-01

    Cet article propose une démarche d'évaluation incrémentale pour évaluer un modèle censé rendre compte d'un phénomène biologique. Il présente dans un premier temps le phénomène collectif cible : à savoir le comportement de différenciation observés dans des groupes de rats, le modèle qui en a été fait puis son évaluation. Le fait d'envisager l'évaluation de manière incrémentale permet alors de voir jusqu'à quel point le modèle répond aux attentes et permet de mettre en évidence de nouvelles que...

  2. The Text of the Safeguards Agreement of 18 March 1976 between the Agency, France and Pakistan

    International Nuclear Information System (INIS)

    The text of the Agreement of 18 March 1976 between the Agency, France and Pakistan for the application of safeguards with respect to a fuel reprocessing plant and to nuclear material, facilities, equipment and relevant technological information supplied by France to Pakistan for the development of peaceful uses of nuclear energy is reproduced in this document for the information of all Members

  3. Charged particle nuclear data bibliography. Literature scanned from March 1, 1982-March 31, 1984. First Edition

    International Nuclear Information System (INIS)

    The coverage for this bibliography includes all journals, reports, and other publications scanned between March 1, 1982, and March 31, 1984. The bibliography is divided into three sections: references, Target Index, and Residual Index. Retrievals may be obtained from this bibliography using the Nuclear Structure References computer file, based on target nucleus, incident particle, outgoing particles or reactions, residual nuclide, topic, or any combination of these

  4. Tectonic conditions of hydrothermal polymetallic vein-type mineralization, Sainte Marie-aux-Mines, France

    Science.gov (United States)

    Hafeznia, Y.; Bourlange, S.; Ohnenstetter, M.

    2012-04-01

    The Sainte-Marie-aux-Mines (SMM) mines host one of the most famous and oldest silver deposits in Europe. The SMM district is located in the central part of the Vosges mountains, France, within gneiss and granites of the Moldanubian zone. The SMM district includes the Neuenberg E-W vein-type Cu-Ag-As/Pb-Zn deposit and the Altenberg N-S vein-type Pb-Zn-Ag deposit. Deposition of the SMM hydrothermal mineralization occurred under a brittle tectonic regime that might be connected to neo-Variscan and/or post-Variscan tectonics, in a similar way as the polymetallic vein deposits of the Black Forest, Germany. A structural study was done in the Neuenberg area, in the vicinity of the Saint-Jacques vein, and within the Gabe Gottes mine, considering the orientation, extent, chronology and density of faults as well as the nature of the infilling minerals. In the Gabe-Gottes mine, the Saint-Jacques vein comprises multiple successive, sub-parallel subvertical veinlets with gangue minerals, mostly carbonates and quartz, and metal-bearing phases, sulfides and sulfosalts. The veinlets are 2 to 50 cm thick and strike N80° to N110°, the earlier veins slightly dipping towards the north, and the latest one, to the south. Seven systems of faults were identified, which may be classified into three major groups formed respectively before, during and after the main stage of ore deposition: a) Pre-mineralization faults - These consist of sinistral NE-SW strike-slip faults, and NW-SE and NE-SW steeply dipping normal faults. These could be related to Carboniferous events considering their relationships with the granitoid intrusives present in the mine area (Brézouard leucogranite ~329 Ma), and the extensional tectonics developed during exhumation processes. b) Faults associated with the main ore-deposition - These faults could be related to late-Hercynian processes from compressional to extensional tectonic regimes. Mineralization controlling faults consist of dextral and sinistral E

  5. Expression of wild-type PtrIAA14.1, a poplar Aux/IAA gene causes morphological changes in Arabidopsis

    Directory of Open Access Journals (Sweden)

    Shanda eLiu

    2015-06-01

    Full Text Available Aux/IAA proteins are transcriptional repressors that control auxin signaling by interacting with Auxin Response Factors (ARFs. So far all of the identified Aux/IAA mutants with auxin-related phenotypes in Arabidopsis and rice (Oryza sativa are dominant gain-of-function mutants, with mutantions in Domain II that affected stability of the corresponding Aux/IAA proteins. On the other hand, morphological changes were observed in knock-down mutants of Aux/IAA genes in tomato (Solanum lycopersicum, suggesting that functions of Aux/IAA proteins may be specific for certain plant species. We report here the characterization of PtrIAA14.1, a poplar (Populus trichocarpa homologue of IAA7. Bioinformatics analysis showed that PtrIAA14.1 is a classic Aux/IAA protein. It contains four conserved domains with the repressor motif in Domain I, the degron in Domain II, and the conserved amino acid signatures for protein-protein interactions in Domain III and Domain IV. Protoplast transfection assays showed that PtrIAA14.1 is localized in nucleus. It is unable in the presence of auxin, and it represses auxin response reporter gene expression. Expression of wild type PtrIAA14.1 in Arabidopsis resulted in auxin-related phenotypes including down-curling leaves, semi-draft with increased number of branches, and greatly reduced fertility, but expression of the Arabidopsis Aux/IAA genes tested remain largely unchanged in the transgenic plants. Protein-protein interaction assays in yeast and protoplasts showed that PtrIAA14.1 interacted with ARF5, but not other ARFs. Consistent with this observation, vascular patterning was altered in the transgenic plants, and the expression of AtHB8 (Arabidopsis thaliana Homeobox Gene 8 was reduced in transgenic plants.

  6. La formation des enseignants aux TIC : allier pédagogie et innovation

    Directory of Open Access Journals (Sweden)

    Marcel Lebrun

    2004-05-01

    Full Text Available [Français] Relativement au champ des technologies éducatives, nous souhaitons étayer l’hypothèse suivante : si généralement on attribue le fait d’apprendre aux étudiants, il est aussi vrai que les enseignants apprennent, que les sociétés apprennent. La cohérence et la préoccupation de ces différents niveaux (étudiants, enseignants, institutions autour de la question de l’apprentissage peuvent, selon nous, être considérées comme un guide et comme un signe d’une éducation de qualité. Dans ce cas, les modèles généraux de l’apprentissage et du développement de dispositifs pédagogiques peuvent être interrogés afin d’élaborer de nouveaux usages et de nouvelles méthodes d’enseignement et de formation des enseignants, pour promouvoir l’innovation technologique dans les institutions et pour en valider la qualité. [English] In this paper, we will try to elaborate, in the field of educational technology, the following hypothesis : students learn, teachers learn too and furthermore institutions learn. The coherence and the awareness of these various levels (students, teachers, institutions around learning may be considered as a guide and an indicator of the quality of education. In this context, the general models for learning and for teaching may be used to develop new teaching or staff training methods, to promote technology innovation in institutions along with the assessment of these initiatives.

  7. Solving Incompressible Internal Flow Fields in Turbomachinery with Time Marching Algorithms

    Institute of Scientific and Technical Information of China (English)

    ZhuWei; SuoYisheng; 等

    1999-01-01

    A time marching algorithms,which is used to solve incomprssible internal flow fields in turbomachinery,has been developed.By using Chorin's method of artificial compressibility,the governing equations are transformed from elliptic type into hyperbolic form in order to extend the time marching technique to very low Mach number flows.Viscous effects can be predicted by using the distributed body force method and Baldwin-Lomax eddy viscosity turbulence model.Some accelerating convergence techniques such as multi-grid and local time step method are employed.The application to a flow field within a low-solidity rocket pump inducer is presented and discussed.

  8. Nonholonomic Motion Planning Using the Fast Marching Square Method

    Directory of Open Access Journals (Sweden)

    César Arismendi

    2015-05-01

    Full Text Available This research presents two novel approaches to nonholonomic motion planning. The methodologies presented are based on the standard fast marching square path planning method and its application to car-like robots. Under the first method, the environment is considered as a three-dimensional C-space, with the first two dimensions given by the position of the robot and the third dimension by its orientation. This means that we operate over the configuration space instead of the bi-dimensional environment map. Moreover, the trajectory is computed along the C-space taking into account the dimensions of the vehicle, and thus guaranteeing the absence of collisions. The second method uses the standard fast marching square, and takes advantage of the vector field of the velocities computed during the first step of the method in order to adapt the motion plan to the control inputs that a car-like robot is able to execute. Both methods ensure the smoothness and safety of the calculated paths in addition to providing the control actions to perform the trajectory.

  9. Quarterly coal report, January--March 1992

    International Nuclear Information System (INIS)

    The United States produced 257 million short tons of coal in the first quarter of 1992. This was the second highest quarterly production level ever recorded. US coal exports in January through March of 1992 were 25 million short tons, the highest first quarter since 1982. The leading destinations for US coal exports were Japan, Italy, France, and the Netherlands, together receiving 46 percent of the total. Coal exports for the first quarter of 1992 were valued at $1 billion, based on an average price of $42.28 per short ton. Steam coal exports totaled 10 million short tons, an increase of 34 percent over the level a year earlier. Metallurgical coal exports amounted to 15 million short tons, about the same as a year earlier. US coal consumption for January through March 1992 was 221 million short tons, 2 million short tons more than a year earlier (Table 45). All sectors but the residential and commercial sector reported increased coal consumption

  10. Evaluation of the radiology state at the CEA/Fontenay-aux-Roses and its environment; Point sur l'etat radiologique du CEA/Fontenay-aux-Roses et de son environnement

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-10-01

    Since 1946 the nuclear installations followed one other at the CEA of Fontenay-aux-Roses still their gradual stop the last ten years, except two installations INB34 and INB73, necessary for the wastes management. Today these installations form the subject of a drainage program. The public opinion is regularly informed on this program since 1999. This document presents the stock of the actions realized since this date: the track keeping of the sites activities impacts on the environment and the actions realized since 1999. (A.L.B.)

  11. Lightcurve Photometry Opportunities January-March 2008

    Science.gov (United States)

    Warner, Brian D.; Harris, Alan W.; Pravec, Petr; Kaasalainen, Mikko; Benner, Lance A. M.

    2008-03-01

    We present here four lists of “targets of opportunity” for the period 2008 January-March. The first list is those asteroids reaching a favorable apparition during this period, are rotation rate, if at all possible. Don’t hesitate to solicit help from other observers at widely spread longitudes should the initial findings show that a single station may not be able to finish the job.

  12. Children of Working Mothers, March 1974.

    Science.gov (United States)

    Bureau of Labor Statistics (DOL), Washington, DC.

    Almost 27 million children in the U.S.--or 42 percent of those under age 18--had mothers working or seeking work in March 1974. About one in four of these children (6.1 million) were below regular school age. Since 1970, the number of children whose mothers were in the labor force has risen sharply by 1.2 million, while the total number of…

  13. Effects of the March 1989 solar activity

    International Nuclear Information System (INIS)

    Two weeks of intense solar activity which produced an historically great magnetic storm occurred in March 1989. Here, the observed effects of that activity are described, including the injection of energetic particles to geostationary orbit, the extreme magnetospheric compression, the cosmic ray penetration, radiation belt precipitation, geomagnetic storms and substorms, and extremely large auroral zone, and radio aurorae that resulted from the activity are reviewed. The effects of the activity on technological systems on earth and in space are addressed

  14. Hanford Engineer Works monthly report, March 1947

    Energy Technology Data Exchange (ETDEWEB)

    1947-04-14

    This document contains the progress report for March, 1947 for Hanford Engineer Works. The power levels of the Piles at 100 D and 100 F were maintained at 250 MV and 200 MV respectively. The operating time efficiency was 91.6. Forty-nine batches were started in the Canyon Buildings and forty-one were delivered from the Isolation building. There were no major injuries during March and the plant safety record as of March 31 was sixty days. A Supervisors' Training Course has been initiated with sixteen participating members. It is being conducted on a seminar basis and is the trail course to determine the adequacy of the subject material for general use throughout the Hanford Engineer Works. It is expected that an expanded program will be started during the next six weeks to include most of the supervisory personnel now employed at the Works. This is an on-the-job'' training program and part of the general educational planning for the Hanford Engineer Works.

  15. March dl: Adding Adaptive Heuristics and a New Branching Strategy

    NARCIS (Netherlands)

    Heule, M.J.H.; Van Maaren, H.

    2006-01-01

    We introduce the march dl satisability (SAT) solver, a successor of march eq. The latter was awarded state-of-the-art in two categories during the Sat 2004 competition. The focus lies on presenting those features that are new in march dl. Besides a description, each of these features is illustrated

  16. Élaboration automatique d’une stratégie de tolérance aux fautes de services web basée sur la diversité

    OpenAIRE

    BOUAKKAZ, khadidja; BELHARIZI, Asmaa

    2015-01-01

    La capacité d’une application à continuer l’exécution en présence de fautes de composants réfère à la Tolérance aux fautes (TF). La TF qui est une des méthodes de sûreté de fonctionnement vise à accepter la faute avec une certaine déviation, mais elle ne permet pas de tolérer les défaillances causées par cette faute. Cette dernière repose sur des stratégies principales afin de garantir la fiabilité de ces composants, dans notre cas des services Web. Les services Web similaires ...

  17. Nouveau rôle de l'Etat dans la gestion des périmètres publics irrigués : soutien aux associations d'irrigants exemple du delta de la Medjerda, Tunisie

    OpenAIRE

    Rahmoune Baudu, Leïla

    2001-01-01

    International audience Dans le secteur agricole tunisien, l'application de la politique de décentralisation et de désengagement de l'Etat depuis 1989 a entraîné la fusion de tous les offices régionaux dont l'Office de mise en valeur de la vallée de la Medjerda (Omvvm). L'abandon de certaines fonctions de l'Omvvm, et notamment celles concernant de la prise en charge des irrigants, s'est accompagné d'une politique de création d'associations des usagers de l'eau. Cet article s'intéresse aux a...

  18. 2003 - 2004 ACADEMIC TRAINING PROGRAMME: 2nd Term - 12 January to 31 March 2004

    CERN Multimedia

    2004-01-01

    ACADEMIC TRAINING Françoise Benz tel. 73127 academic.training@cern.ch REGULAR LECTURE PROGRAMME 12, 13, 14 January Microelectronics and Nanoelectronics: Trends, and Applications to HEP Instrumentation by P. Jarron / CERN-EP 2, 3, 4 February Quantum Teleportation : Principles and Applications by N. Gisin / Univ. of Geneva, CH 16, 17, 18, 19, 20 February Physics of Extra Dimensions by V. Rubakov / Russian Academy of Sciences, Moscow, RU 1, 2, 3, 4, March Physics of Shower Simulation at LHC at the Example of GEANT4 by J.P. Wellisch / CERN-EP 8, 9, 11, 12 March Introduction to Cryogenic Engineering by H. Quack / Technische Universität Dresden, D 22, 23, 24, 25, 26 March Neutrinos By Y. Nir / Weizmann Institute of Science, Rehovot, IL LECTURE SERIES FOR POSTGRADUATE STUDENTS 29, 30, 31 March, 1, 2 April Physics beyond the Standard Model by L. Ibanez / CERN-TH The lectures are open to all those interested, without application. The abstract of the lectures, as well as any change to...

  19. 2003 - 2004 ACADEMIC TRAINING PROGRAMME: 2nd Term - 12 January to 31 March 2004

    CERN Multimedia

    2003-01-01

    ACADEMIC TRAINING Françoise Benz tel. 73127 academic.training@cern.ch REGULAR LECTURE PROGRAMME 12, 13, 14 January Microelectronics and Nanoelectronics: Trends, and Applications to HEP Instrumentation by P. Jarron / CERN-EP 2, 3, 4 February Quantum Teleportation : Principles and Applications by N. Gisin / Univ. of Geneva, CH 16, 17, 18, 19, 20 February Physics of Extra Dimensions by V. Rubakov / Russian Academy of Sciences, Moscow, RU 1, 2, 3, 4, March Physics of Shower Simulation at LHC at the Example of GEANT4 by J.P. Wellisch / CERN-EP 8, 9, 11, 12 March Introduction to Cryogenic Engineering by H. Quack / Technische Universität Dresden, D 22, 23, 24, 25, 26 March Neutrinos By Y. Nir / Weizmann Institute of Science, Rehovot, IL LECTURE SERIES FOR POSTGRADUATE STUDENTS 29, 30, 31 March, 1, 2 April Physics beyond the Standard Model by L. Ibanez / CERN-TH The lectures are open to all those interested, without application. The abstract of the lectures, as well as any chang...

  20. RELIGION ET IMMIGRATION AUX ÉTATS-UNIS [Religion and immigration in the United States of America

    OpenAIRE

    Dumont, Gérard-François

    2012-01-01

    International audience In any country, the number of religions evolve according to the number of people who identify with the various religions and the number of people who deviate. In the United States, this type of evolution is particularly dependent on immigration resulting in significant changes in the religious distribution of the population. Aux États-Unis, l'évolution des effectifs des religions est tout particulièrement dépendant de l'immigration qui engendre des changements imp...

  1. Contribution to the study of several chemical hazards in the Centre d'Etudes Nucleaires of Fontenay-aux-Roses

    International Nuclear Information System (INIS)

    From the checking of 2750 index cards of hazards, the study relates the distribution of the chemical hazards in the Centre d'Etudes Nucleaires of Fontenay-aux-Roses. Those concerning the greatest number of agents in the Centre are classified according to the categories corresponding to the different conditions of working. Thus, the most important are put forward. Then, the authors rapidly make a review of hazards which may have some special interest because they appear more specific of the nuclear energy or because they are the most frequently noted on the index cards of hazards. The case of the tributylphosphate is studied more precisely. (authors)

  2. LLE Review quarterly report, January--March 1995. Volume 62

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-07-01

    This volume of the LLE review, covering the period of January-March 1995, contains articles on the evaluation of the mechanism for laser damage in OMEGA UV multilayer coatings using a combination of conventional laser-damage characterization methods and atomic force microscopy; a dual-amplitude, fiber-coupled waveguide integrated-optic modulation device for generating temporally shaped optical pulses in OMEGA-, a proposal for modifying the indirect-drive irradiation geometry of the National Ignition Facility (NIF) to provide the additional flexibility for performing direct-drive experiments; direct measurements of terminal-level lifetime in several different Nd:YLF laser media; an overview of the materials science issues, basic mechanisms, and potential device applications for light-emitting porous silicon; and a study of the time-dependent reflection and surface temperatures for laser-irradiated dental hard tissue at two CO{sub 2} laser wavelengths.

  3. Workshop held at Johns Hopkins University, March 2013

    CERN Document Server

    2013-01-01

    Cyber-physical systems (CPS) involve deeply integrated, tightly coupled computational and physical components. These systems, spanning multiple scientific and technological domains, are highly complex and pose several fundamental challenges. They are also critically important to society’s advancement and security. The design and deployment of the adaptable, reliable CPS of tomorrow requires the development of a basic science foundation, synergistically drawing on various branches of engineering, mathematics, computer science, and domain specific knowledge.   This book brings together 19 invited papers presented at the Workshop on Control of Cyber-Physical Systems, hosted by the Department of Electrical & Computer Engineering at The Johns Hopkins University in March 2013. It highlights the central role of control theory and systems thinking in developing the theory of CPS, in addressing the challenges of cyber-trust and cyber-security, and in advancing emerging cyber-physical applications ranging from s...

  4. March dl: Adding Adaptive Heuristics and a New Branching Strategy

    Directory of Open Access Journals (Sweden)

    Marijn J.H. Heule

    2006-03-01

    Full Text Available We introduce the march dl satisfiability (SAT solver, a successor of march eq. The latter was awarded state-of-the-art in two categories during the Sat 2004 competition. The focus lies on presenting those features that are new in march dl. Besides a description, each of these features is illustrated with some experimental results. By extending the pre-processor, using adaptive heuristics, and by using a new branching strategy, march dl is able to solve nearly all benchmarks faster than its predecessor. Moreover, various instances which were beyond the reach of march eq, can now be solved - relatively easily - due to these new features.

  5. Re an Adoption Application (Surrogacy), 11 March 1987.

    Science.gov (United States)

    1987-01-01

    The Court was asked to make an adoption order in favor of a couple who had paid another woman to bear a child for them using the husband's sperm. The Court made the order, noting that the Surrogacy Arrangements Act 1985, which bans commercial surrogacy agencies, negotiations, and advertisements had not been enacted at the time of this arrangement. It also held that the arrangement did not violate the Adoption Act 1958, which prohibits payments or rewards for or in consideration of adoption, because the payment to the surrogate was not made in contemplation of adoption. Moreover, it concluded that even if the payment had been made in contemplation of adoption, the Adoption Act gave the Court the power to authorize the payment retrospectively. PMID:12346765

  6. Spent-fuel dry-storage testing at E-MAD (March 1978-March 1982)

    International Nuclear Information System (INIS)

    From March 1978 through March 1982, spent fuel dry storage tests were conducted at the Engine Maintenance, Assembly and Disassembly (E-MAD) facility on the Nevada Test Site to confirm that commercial reactor spent fuel could be encapsulated and passively stored in one or more interim dry storage cell concepts. These tests were: electrically heated drywell, isolated and adjacent drywell, concrete silo, fuel assembly internal temperature measurement, and air-cooled vault. This document presents the test data and results as well as results from supporting test operations (spent fuel calorimetry and canister gas sampling)

  7. Les ecarts de financement en matiere d'adaptation aux changements climatiques - avec la perspective des CPDN

    DEFF Research Database (Denmark)

    Olhoff, Anne; Bee, Skylar; Puig, Daniel

    rapport sur les écarts financiers et les options permettant de les combler. Le rapport sera publié au printemps 2016. Cette mise à jour doit contribuer aux débats lors de la 21ème session de la Conférence des Parties (COP 21) à la Convention-Cadre des Nations Unies sur les Changements Climatiques (CCNUCC......). Elle comprend les principales conclusions concernant les coûts et les financements de l’adaptation aux changements climatiques du rapport AGR 2014 du PNUE ainsi que les conclusions préliminaires de l’évaluation de 2016. De plus, elle s’appuie sur les réflexions concernant les coûts de l’adaptation et...... les besoins de financement présentes dans les composantes adaptation des Contributions Prévues Déterminées au niveau National (CPDN) (INDC) – soit les engagements post 2020 que les pays se proposent mettre en oeuvre dans le cadre d’un nouvel accord mondial sur les changements climatiques....

  8. Quarterly coal report, January--March 1998

    Energy Technology Data Exchange (ETDEWEB)

    Young, P.

    1998-08-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. This report presents detailed quarterly data for January through March 1998 and aggregated quarterly historical data for 1992 through the fourth quarter of 1997. Appendix A displays, from 1992 on, detailed quarterly historical coal imports data. To provide a complete picture of coal supply and demand in the United States, historical information has been integrated in this report. 58 tabs.

  9. INFLUENCE DE LA STRUCTURE ET DE LA SEGREGATION AUX JOINTS DE GRAINS SUR LES PROPRIETES ELECTRIQUES ET LE RENDEMENT PHOTOVOLTAIQUE DU SILICIUM POLYCRISTALLIN

    OpenAIRE

    Maurice, J.; Laval, J

    1982-01-01

    On relie les propriétés électriques et structurales des joints de grains dans le cas du silicium polycristallin produit par la méthode Bridgman (C.G.E.), en comparant les mesures macroscopiques de réponse photovoltaïque (LBIC) et de chute de potentiel aux joints, aux analyses cristallographiques et chimiques effectuées en microscopie électronique (STEM, EDS, EELS). On peut distinguer trois types de joints : 1) les joints plans -cohérents- qui n'influent pas sur le photocourant, à moins d'être...

  10. Dans un service d’urgences, comment les infirmières peuvent-elles apporter un soin relationnel aidant aux femmes victimes d’abus sexuel ?

    OpenAIRE

    Décosterd, Joanna; Stam, Jessica; Berset, Christine

    2013-01-01

    Une personne victime d’abus sexuel se présente aux urgences d’un hôpital et doit attendre de nombreuses heures sans recevoir de soins et d’attention de la part des professionnels. En prenant connaissance de la thématique de l’abus sexuel, nous constatons que les femmes sont les plus touchées, que l’abus peut être de différente nature et que les conséquences physiques, psychiques et sociales sont importantes. Du point de vue des infirmières travaillant aux urgences, il ressort que leurs princi...

  11. Homosexualité/hétérosexualité : les enquêtes sur les comportements sexuels en France et aux USA

    OpenAIRE

    Lhomond, Brigitte; Michaels, Stuart

    2009-01-01

    Cet article propose une analyse des résultats concernant l’attirance et les pratiques homosexuelles dans les deux enquêtes nationales récentes sur les comportements sexuels en France et aux USA. On observe des attitudes sociales différentes vis‑à‑vis de l’homosexualité dans les deux pays avec une beaucoup plus grande acceptation en France, une affirmation plus nette de l’attirance homosexuelle aux Etats‑Unis, surtout chez les hommes et une structuration socio-démographique assez similaire des...

  12. Une introduction aux liens entre Mécanique Statistique et Théorie des champs.

    OpenAIRE

    Bauer, Michel

    2006-01-01

    Avant propos.1 - Transitions de phases et limite continue. -A. Introduction -B. Notion de limite continue : marche aléatoire sur le réseau -C. Le modéle d'Ising en dimension 2 -D. Perspectives 2 - Phénomènes critique et théories des champs sur le résau -A. Retour au modéle d'Ising -B. Champ moyen et corrections -C. Régles de Feynman -D. Interprétation physique dans le cas homogéne -E. Le modélesigma non linéaire -F. Passage à la limite continue 3 - Théorie des champs continue -A. Régles de Fe...

  13. March 2015 Arizona thoracic society notes

    Directory of Open Access Journals (Sweden)

    Robbins RA

    2015-03-01

    Full Text Available No abstract available. Article truncated at 150 words. The March 2015 Arizona Thoracic Society meeting was held on Wednesday, March 25, 2014 at the Scottsdale Shea Hospital beginning at 6:30 PM. This was a dinner meeting with case presentations. There were 14 in attendance representing the pulmonary, critical care, sleep, radiology and oncology communities. Dr. Richard Robbins made a presentation entitled "The History of Exhaled Nitric Oxide Measurement" focusing on the development of exhaled nitric oxide in the early 1990's. There were 3 case presentations: 1. Sandra Till, a third year pulmonary fellow at the Good Samaritan/VA program, presented an elderly man admitted to the Phoenix VA with an exacerbation of chronic obstructive pulmonary disease (COPD. His CT findings showed with centrilobular emphysema, bronchial edema, and scattered ground glass opacities. It was felt that the CT findings most likely represented a bronchiolitis from his exacerbation of COPD. 2. Richard Robbins presented a 49 year old man with a ...

  14. Reply to Comment by Holas and March

    CERN Document Server

    Nesbet, R K

    2003-01-01

    The accompanying Comment by A. Holas and N. H. March [Phys. Rev. A {\\bf 66}, 066501 (2002)] is concerned with the issue of whether or not kinetic energy can be represented by an effective local potential, as required for an exact Thomas-Fermi theory equivalent to Kohn-Sham density-functional theory. They dispute [R.K. Nesbet, Phys. Rev. A {\\bf 65}, 010502(R) (2001)], which concludes that for more than two electrons the use by Kohn and Sham of the Schr\\"odinger kinetic energy operator is variationally correct, while the equivalent local potential required for a valid Thomas-Fermi theory, a Fr\\'echet functional derivative of the Kohn-Sham ground-state kinetic energy functional, does not exist. The argument of Holas and March is clearly invalid for the simple example of the lowest triplet state of a two-electron atom with noninteracting electrons. Why this fails, as do earlier arguments in the literature, has been explained in recent publications, summarized here.

  15. MANAGEMENT BOARD MEETING OF 23 MARCH 2000

    CERN Multimedia

    2000-01-01

    For informationOutcome of the March Meetings of the Scientific Policy Committee, Finance Committee and Committee of CouncilThe Director-General reviewed the highlights of the latest round of Committee meetings held during the week beginning 13 March.The Scientific Policy Committee had heard reports on the Antiproton Decelerator (AD) machine and experiments and had expressed appreciation for the excellent work done in both respects, congratulating all those involved on the progress achieved to date. It had also examined reports on the LHC machine and experiments, the LEP experiments, the Joint Laboratory Directors/ICFA meeting at the Rutherford Appleton Laboratory on 10-11 February, the 'New State of Matter Created at CERN' seminar held at CERN on10 February and the Five-Yearly Review of the Fellows, Associates and Students Programme. In the latter connection, the Committee had held a detailed and extensive discussion of the issues raised in the draft document submitted to it and had made various suggestions f...

  16. Light-dependent gravitropism and negative phototropism of inflorescence stems in a dominant Aux/IAA mutant of Arabidopsis thaliana, axr2.

    Science.gov (United States)

    Sato, Atsuko; Sasaki, Shu; Matsuzaki, Jun; Yamamoto, Kotaro T

    2014-09-01

    Gravitropism and phototropism of the primary inflorescence stems were examined in a dominant Aux/IAA mutant of Arabidopsis, axr2/iaa7, which did not display either tropism in hypocotyls. axr2-1 stems completely lacked gravitropism in the dark but slowly regained it in light condition. Though wild-type stems showed positive phototropism, axr2 stems displayed negative phototropism with essentially the same light fluence-response curve as the wild type (WT). Application of 1-naphthaleneacetic acid-containing lanolin to the stem tips enhanced the positive phototropism of WT, and reduced the negative phototropism of axr2. Decapitation of stems caused a small negative phototropism in WT, but did not affect the negative phototropism of axr2. p-glycoprotein 1 (pgp1) pgp19 double mutants showed no phototropism, while decapitated double mutants exhibited negative phototropism. Expression of auxin-responsive IAA14/SLR, IAA19/MSG2 and SAUR50 genes was reduced in axr2 and pgp1 pgp19 stems relative to that of WT. These suggest that the phototropic response of stem is proportional to the auxin supply from the shoot apex, and that negative phototropism may be a basal response to unilateral blue-light irradiation when the levels of auxin or auxin signaling are reduced to the minimal level in the primary stems. In contrast, all of these treatments reduced or did not affect gravitropism in wild-type or axr2 stems. Tropic responses of the transgenic lines that expressed axr2-1 protein by the endodermis-specific promoter suggest that AXR2-dependent auxin response in the endodermis plays a more crucial role in gravitropism than in phototropism in stems but no significant roles in either tropism in hypocotyls. PMID:24938853

  17. Interventions et attitudes envers les patientes victimes de violences domestiques aux urgences: une revue de la littérature étoffée

    OpenAIRE

    Suchet, Amandine; Gasser, Catherine

    2013-01-01

    But: déterminer les interventions, les attitudes infirmières et les obstacles se présentant lors d’un dépistage de violences domestiques aux urgences, afin d’améliorer et d’avoir une meilleure prise en charge des femmes victimes d’abus.

  18. March dl: Adding Adaptive Heuristics and a New Branching Strategy

    OpenAIRE

    Marijn J.H. Heule; Hans van Maaren

    2006-01-01

    We introduce the march dl satisfiability (SAT) solver, a successor of march eq. The latter was awarded state-of-the-art in two categories during the Sat 2004 competition. The focus lies on presenting those features that are new in march dl. Besides a description, each of these features is illustrated with some experimental results. By extending the pre-processor, using adaptive heuristics, and by using a new branching strategy, march dl is able to solve nearly all benchmarks faster than its ...

  19. Science and Technology Review March 2006

    Energy Technology Data Exchange (ETDEWEB)

    Aufderheide, M B

    2006-01-18

    This month's issue has the following articles: (1) Without Fanfare, Technicians Safely Keep the Laboratory Humming--Commentary by Bruce T. Goodwin; (2) These People Make Things Happen--Technicians at Lawrence Livermore, comprising more than 20 percent of the workforce, are essential to research efforts. March 2006; (3) The Shocking Truth about Detonations and Metals--The multichannel x-ray system Hydra records the changes in metals undergoing a high-explosives shock, revealing phenomena not predicted by material models; (4) Floating into Thin Air--High-flying balloon gathers images from x-ray sources that are out of this world; and (5) Carbon Goes Full Cycle in the Amazon--Recent measurements indicate that the Amazon River basin returns carbon to the atmosphere in only 5 years.

  20. Quarterly coal report, January--March 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-24

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for January through March 1995 and aggregated quarterly historical data for 1987 through the fourth quarter of 1994. Appendix A displays, from 1987 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  1. Quarterly coal report, January--March 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-08-01

    This Quarterly Coal Report (QCR) provides comprehensive information about U.S. coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience,including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for January through March 1997 and aggregated quarterly historical data for 1991 through the fourth quarter of 1996. Appendix A displays, from 1988 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  2. Energy programs. Quarterly report, January-March 1978

    Energy Technology Data Exchange (ETDEWEB)

    1978-01-01

    The Johns Hopkins University Applied Physics Laboratory is engaged in the development of energy resources, energy utilization concepts, and energy storage methods. This Quarterly Report, summarizing work completed on the various tasks as of 31 March 1978, contains comments on limited tasks, short descriptions of meetings, trips, presentations, and other limited tasks of note performed in connection with major program tasks and articles that describe these program tasks briefly, summarize the progress made to date, and indicate future efforts to be made. The major tasks fall into the following categories: Geothermal Energy Development Planning, which concentrates on the survey of potential geothermal resources and the development of scenarios for possible exploitation and utilization in DOE/DGE Region 5, which includes all the United States east of the Rocky Mountains, excluding Texas and Louisiana; Applications Study of DOE/DGE Region 5, which concerns a study of geothermal energy applications in DOE-selected areas of the Atlantic Coastal Plain; the Low-Head Hydroelectric Program; the Community Annual Storage Energy System (CASES) and the status of a development and demonstration plan for a low-cost flywheel; and multiple-objective modeling of power plant locations.

  3. JAERI TIARA annual report vol. 3 (1993). April 1993 - March 1994

    International Nuclear Information System (INIS)

    This annual report describes research activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1993 to March 31, 1994. Summary reports of 80 papers and brief descriptions on status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  4. JAERI TIARA annual report 1994. V.4. April 1994 - March 1995

    International Nuclear Information System (INIS)

    This annual report describes research activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1994 to March 31, 1995. Summary reports of 86 papers and briaf descriptions on status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  5. JAERI TIARA annual report 1994. V.4. April 1994 - March 1995

    Energy Technology Data Exchange (ETDEWEB)

    Tanaka, Ryuichi; Seguchi, Tadao; Nashiyama, Isamu [Japan Atomic Energy Research Inst., Takasaki, Gunma (Japan). Takasaki Radiation Chemistry Research Establishment] [eds.] [and others

    1995-10-01

    This annual report describes research activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1994 to March 31, 1995. Summary reports of 86 papers and briaf descriptions on status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author).

  6. Naturally fractured tight gas reservoir detection optimization. Quarterly report, January 1, 1997--March 31, 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-04-01

    This document contains the quarterly report dated January 1-March 31, 1997 for the Naturally Fractured Tight Gas Reservoir Detection Optimization project. Topics covered in this report include AVOA modeling using paraxial ray tracing, AVOA modeling for gas- and water-filled fractures, 3-D and 3-C processing, and technology transfer material. Several presentations from a Geophysical Applications Workshop workbook, workshop schedule, and list of workshop attendees are also included.

  7. JAERI TIARA annual report 1995. V. 5. April 1995 - March 1996

    International Nuclear Information System (INIS)

    This annual report describes research activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1995 to March 31, 1996. Summary reports of 84 papers and briaf descriptions on status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  8. Théorie du risque en santé publique: Application aux infections en milieu hospitalier

    OpenAIRE

    Emily, Mathieu

    2009-01-01

    Nous introduisons une nouvelle approche pour traiter le problème des infections contractées lors d'un séjour hospitalier. En nous inspirant de la théorie du risque en actuariat, nous avons défini un coefficient d'ajustement permettant de quantifier le risque de développer une infection dans un service hospitalier. Ce coefficient caractérise une distribution exponentielle de la fonction de survie et est estimé comme solution d'une équation de Lundberg. La robustesse des estimateurs a été évalu...

  9. Applications des technologies mémoires MRAM appliquées aux processeurs embarqués

    OpenAIRE

    Cargnini, Luís Vitório

    2013-01-01

    The Semiconductors Industry with the advent of submicronic manufacturing flows below 45 nm began to face new challenges to keep evolving according with the Moore's Law. Regarding the widespread adoption of embedded systems one major constraint became power consumption of IC. Also, memory technologies like the current standard of integrated memory technology for memory hierarchy, the SRAM, or the FLASH for non-volatile storage have extreme intricate constraints to be able to yield memory array...

  10. Analyse des données évolutives : application aux données d'usage du Web

    OpenAIRE

    Gomes Da Silva, Alzennyr

    2009-01-01

    Nowadays, more and more organizations are becoming reliant on the Internet. The Web has become one of the most widespread platforms for information change and retrieval. The growing number of traces left behind user transactions (e.g. : customer purchases, user sessions, etc.) automatically increases the importance of usage data analysis. Indeed, the way in which a web site is visited can change over time. These changes can be related to some temporal factors (day of the week, seasonality, pe...

  11. Détection de dysfonctionnements en système hydrographique Application aux réseaux d'assainissement

    OpenAIRE

    Piatyszek, Eric

    1998-01-01

    This research work aims at developping fault-detection methods easily fit, either in decision assistance tools for real time control of sewer network, or in computer tools for the elaboration of systematic and synthetic balances for estimation the pollution produced from the sewer network. This methodological study then produces a synthesis of fault detection and fault diagnosis technics applied to sewer networks, and develops three model-based fault detection methods. One of these methods co...

  12. Imagerie par synthèse d'ouverture optique, application aux étoiles chimiquement particulières

    OpenAIRE

    Le Bouquin, Jean-Baptiste

    2005-01-01

    The on-going revolution due to high angular resolution observations promises to unlock tightly-kept secrets of stellar astrophysics. Complementary polarization diagnostics at high angular resolution will open new opportunities by resolving local polarized features always averaged, and thus lost, in classical spectro-polarimetry. After describing the issue of chemically peculiar stars (Ap) observations, I develop a numerical tool with which I show how interferometric measurements improve the r...

  13. Méthode d'analyse des écoulements 3D à surface libre: application aux turbines Pelton

    OpenAIRE

    Kvicinsky, Sonia; Avellan, François

    2005-01-01

    Free surface flows are extremely complex and appear in various cases such as chemistry, oceanography, thermodynamics and turbomachinery. Their complexity is due to the fact that they are composed of two distinct phases which are only separated by a thin interface through which energy and heat transfers can occur. There are different types of free surface flows, such as liquid-liquid, illustrated by the injection of an oil droplet in water, and liquid-gas, for example bubbles in boiling water....

  14. Commande des systèmes à commutation : applications aux systèmes électriques

    OpenAIRE

    Amet, Leonardo

    2014-01-01

    Dans ce travail de thèse, réalisé dans le cadre d'une bourse CIFRE entre le laboratoire ECS-Lab et l'entreprise GS Maintenance, nous nous sommes intéressés au contrôle et à l'observation des systèmes électriques, particulièrement les convertisseur multicellulaires séries et les moteurs à courant continu série.Dans la topologie des convertisseurs multicellulaires il est nécessaire d'équilibrer les tensions des condensateurs flottants à des valeurs spécifiques. Les techniques de commande par Mo...

  15. Une méthode de cartographie du risque érosif: application aux collines du Terrefort lauragais

    OpenAIRE

    Fox, Dennis; Jean Morschel

    2004-01-01

    A soil erosion risk map is an essential tool for soil conservation planning. It provides a general view of erosion problems and makes it possible to identify sectors requiring emergency action. The erosion risk map produced for this study was achieved by spatialising the Revised Universal Soil Loss Equation (RUSLE). The aim of this article is to demonstrate the steps involved in developing a soil erosion risk map.

  16. ELABORATION ET CARACTERISATION D'OXYDES D'ALUMINIUM ULTRA-MINCES POUR UNE APPLICATION AUX JONCTIONS TUNNELS MAGNETIQUES

    OpenAIRE

    Vizzini, Sébastien

    2008-01-01

    This thesis reports on the development of an original process, the Atomic Layer Deposition and Oxidation (ALDO) procedure, for growing a perfectly homogeneous artificial oxide film with specific chemical composition. The growth method consisted of three steps: deposition by molecular beam epitaxy (MBE) of one atomic monolayer of a specific metal, followed by exposure of 60 Langmuirs oxygen resulting in chemical oxidation at room temperature, and concluding with annealing in ultrahigh vacuum (...

  17. Contributions à l'étude du complexe absorbant des sols acides à charges mixtes : application aux andosols du Velay

    OpenAIRE

    Espiau, P.

    1987-01-01

    En prenant comme modèle les andosols à charges mixtes du Velay, l'auteur s'intéresse, dans le contexte naturel, à la détermination des charges négatives et des cations échangeables qui les saturent. Ainsi, il discute les problèmes posés par les membres de l'égalité qui assure l'électroneutralité dans les sols (somme des cations échangeables = capacité d'échange cationique effective)

  18. Conception et Evaluation de Réseaux Sans Fil Denses - Application aux Systèmes de Divertissement de Bord"

    OpenAIRE

    Akl, Ahmed

    2011-01-01

    Wireless networking is one of the most challenging networking domains with unique features that can provide connectivity in situations where it is difficult to use wired networking, or when node mobility is required. However, the working environment usually imposes various constrains, where wireless devices face various challenges when sharing the communication media. Furthermore, the problem becomes worse when the number of nodes increase. Different solutions were introduced to cope with hig...

  19. Les enjeux des marchés du colza et de ses dérivés

    Directory of Open Access Journals (Sweden)

    Dronne Yves

    2003-05-01

    Full Text Available Le colza représente dans l’Union Européenne (UE la première graine oléagineuse produite localement, la principale huile végétale produite et consommée dans cette zone, et une source de protéines pour l’alimentation animale de grande importance à côté du tourteau de soja essentiellement importé sous forme de graines et de tourteaux à partir de l’Amérique du Nord et du Sud. Alors que les marchés potentiels des co-produits du colza, de plus en plus diversifiés, demeurent très importants pour l’alimentation humaine, animale et les usages techniques, la production n’augmente que faiblement depuis un certain nombre d’années en raison d’une part de la difficile compétition de cette culture par rapports aux autres spéculations végétales de l’UE et notamment au blé, et d’autre part de la forte pression sur les prix qu’exerce l’environnement international, où dominent de plus en plus les tourteaux de soja pour les matières riches en protéines et les huiles de palme et de soja pour les matières grasses végétales. Cette situation est d’abord en relation avec l’évolution de la Politique Agricole Commune (PAC où, depuis la mise en place de l’Agenda 2000, les graines oléagineuses ont subi un découplage « vers le bas » avec un abaissement des aides directes pour ces produits au niveau de celles attribuées aux céréales, alors qu’aux Etats-Unis, depuis le Fair Act de 1996, le soja comme les autres oléagineux a bénéficié d’un découplage « vers le haut », avec l’attribution à ces produits des mêmes avantages que pour les céréales. La transformation du soutien par les prix aux producteurs de soja et autres oléagineux en soutien des revenus par la création des Marketing Loans a contribué à un effondrement des prix mondiaux des huiles et tourteaux à partir de 1998 qui a pénalisé l’ensemble des producteurs mondiaux d’oléagineux et notamment ceux de l’UE. Cette

  20. Les images de l’Arabie Saoudite aux États-Unis - De 1973 au 11 septembre 2001

    OpenAIRE

    Raymond Vidén, Anna

    2011-01-01

    Cette étude avance l’idée que la relation américano-saoudienne « spéciale » fait partie intégrante d’un récit sur la relation entre les États-Unis et l’Arabie Saoudite, créé par la compagnie pétrolière ARAMCO et entretenu par Washington au travers de déclarations, doctrines politiques et voyages officiels en Arabie Saoudite. L’Arabie Saoudite elle-même entretient ce récit avec sa diplomatie publique et l’influence exercée par le « lobby saoudien » aux États-Unis. Ce récit souligne l’importanc...

  1. The Politics of Religion in the United States Manifestations politiques de la religion aux États-Unis

    Directory of Open Access Journals (Sweden)

    Josef Braml

    2011-04-01

    Full Text Available Aux États-Unis, les attitudes religieuses ont plus d’influence sur les choix politiques que dans n’importe quelle autre démocratie occidentale. L’engagement religieux/moral de la droite chrétienne polarise les États-Unis, ce qui a des conséquences sur le plan électoral mais aussi sur les choix politiques réels. L’importance de la droite chrétienne dans la coalition électorale du Parti républicain oblige celui-ci à mettre l’accent sur les questions liées à la sécurité nationale, en particulier la lutte anti-terroriste, afin de mieux souder une coalition électorale hétérogène.

  2. Environnements stellaire : des étoiles lambda Boötis aux disques protoplanétaires

    OpenAIRE

    Gonzalez, Jean-François

    2005-01-01

    J'ai effectué une étude des éléments C, N, et O dans les atmosphères d'étoiles chimiquement particulières de la séquence principale, où ils sont sous-abondants et répartis de manière inhomogène. J'ai recensé les processus physiques qu'il faut inclure dans les calculs d'accélération radiative et montré leur importance relative. Des améliorations majeures par rapport aux approximations usuelles ont été obtenues grâce à l'utilisation systématique des données atomiques du projet OPACITY. Elles pe...

  3. Le système opioïde endogène et l’addiction aux drogues1

    OpenAIRE

    Maldonado, Rafael

    2010-01-01

    L’addiction aux drogues est une maladie psychiatrique chronique qui conduit à d’importantes altérations adaptatives dans les circuits de récompense du cerveau. Plusieurs systèmes de neurotransmission sont impliqués dans ces modifications. Cependant, un des systèmes neurochimiques qui joue un rôle essentiel dans l’addiction est le système opioïde endogène. Les récepteurs opioïdes et les peptides opioïdes endogènes sont très largement présents dans les structures cérébrales qui contrôlent les p...

  4. Vieillir et faire face au cancer : des ressources objectives aux ressources sélectives

    OpenAIRE

    Marche, Hélène; Pian, Anaïk

    2014-01-01

    Dans le prolongement de travaux considérant le vieillissement comme processus et contexte à part entière, l’article s’intéresse aux ressources mobilisées par les individus âgés pour contrôler leur trajectoire du cancer. À travers la mise en perspective de deux études de cas concernant des individus âgés occupant des positions contrastées voire opposées dans l’espace social, trois dimensions sont plus particulièrement explorées : les rapports au monde médical, le contrôle de l’information sur ...

  5. Le registre aux notices de Dinant : le nombre d'affaires d'avortement transmises à la justice

    OpenAIRE

    Villers, Stéphanie

    2013-01-01

    L’analyse des articles du Code pénal sanctionnant l’avortement a prouvé combien il était malaisé de rassembler et de démontrer les quatre éléments constitutifs de l’avortement. Dans l’impasse face à cette infraction d’un autre genre, la justice n’a souvent d’autre choix que d’abandonner les poursuites. L’orientation dominante des affaires d’avortement est donc le sans suite ou le non-lieu. Comment les connaître et les quantifier ? À cet égard, le registre aux notices, témoin de l’activité du ...

  6. Le "non-recours" aux soins des populations précaires. Constructions et réceptions des normes.

    OpenAIRE

    Rode, Antoine

    2010-01-01

    Les populations précaires sont celles pour qui persistent les difficultés dans l'accès et l'utilisation des soins, alors que leur état de santé est plus dégradé que pour le reste de la population. Ces constats communs à plusieurs études viennent pleinement réinterroger l'effectivité des dispositifs – protection et services de soins – mis en place en France depuis les années 1990 pour favoriser l'accès aux soins de tous. Dans ce contexte, la question du « non-recours » dans le domaine des soin...

  7. ALDUY Cécile, WAHNICH Stéphane, 2015, Marine Le Pen prise aux mots

    OpenAIRE

    Née, Émilie

    2016-01-01

    Alors que le discours politique est l’objet privilégié, l’objet « noble », presque naturel de l’analyse de discours française (du côté de la lexicologie comme de la rhétorique), peu de chercheurs se sont penchés sur les discours des dirigeants du Front national. Et pourtant, comme l’indique Cécile Alduy en ouverture de Marine Le Pen prise aux mots, l’histoire du Front national « c’est aussi, fondamentalement, une histoire de mots » (p. 14). Ce paradoxe s’explique si l’on considère le discours...

  8. Modification chimique des bitumes : Une nouvelle alternative aux bitumes modifiés polymères

    OpenAIRE

    Orange, G; MARTIN, JV; SUCH, C

    2004-01-01

    Cet article présente une alternative à la modification des bitumes par des polymères basée sur l'utilisation de nouveaux additifs issus de la chimie des phosphates (gamme InnovaltTM). Une augmentation de un à deux grades (grade Pene) peut être très facilement obtenue selon la nature du bitume par ajout de seulement 0,5 à 1,5 % poids d'InnovaltTM N sans aucun autre additif. De plus, cette nouvelle technologie peut être utilisée dans le cas des bitumes modifiés aux polymères : l'utilisation d'I...

  9. Le souffle du changement ou le retour aux habitudes ? Le cas de la tempête de 2009

    OpenAIRE

    Deuffic, P.

    2015-01-01

    / Face aux risques subis ou redoutés comme les tempêtes et incendies, une étude montre que les forestiers landais ont finalement peu modifier peu leurs comportements. Après les phases de stupéfaction, de gestion de l’urgence, d’abattement, est venue une période de réflexions et de propositions mais qui n'a guère fait évoluer les pratiques à court terme. Cette étude montre que le changement a besoin d’être accompagné, anticipé, conforté par différents canaux d’informati...

  10. Commande tolérante aux défauts : une approche basée sur la platitude

    OpenAIRE

    Martínez Torres, César

    2014-01-01

    L’objectif de ce manuscrit est de fournir une technique de commande tolérante aux défauts basée sur la platitude différentielle. Pour ce type de systèmes, il est possible de trouver un ensemble de variables, nommées sorties plates, tel que, les états et les entrées de commande du système puissent s’exprimer en fonction de ces sorties et d’un nombre fini de ses dérivées temporelles. Le bloc de détection et d’isolation doit assurer la détection du défaut le plus rapidement possible. Cette actio...

  11. Contribution à l'étude des addictions: La Cotinine, du tabagisme aux gènes

    OpenAIRE

    Riah, Victor Omar

    2003-01-01

    Le tabagisme est reconnu comme une dépendance comparable aux autres dépendances : alcool, opiacées et autres psycho-stimulants. Les mécanismes responsables de l'initiation et du maintien de l'addiction sont également impliqués dans les déviations comportementales en général, comme les déviations nutritionnelles, les compulsions.... La nicotine de la feuille de tabac est très toxique, dès son absorption, elle atteint le cerveau et tout l'organisme, active ses récepteurs et produit des effets t...

  12. Magnetic and thermodynamic properties of CeCu6-xAux for 0≤x≤2

    International Nuclear Information System (INIS)

    The Neel temperature TN(x) of the heavy-fermion alloys CeCu6-xAux exhibits a sharp maximum, TN=2.2 K for x=1, coinciding with a change of the lattice constant b(x) from a slight contraction for x1. The samples remain single-phase orthorhombic (at room temperature) up to x=1.4 after annealing at 700 C and up to x=2 directly after preparation. Measurements of the specific heat indicate that C/T at low T shows a nonmonotonic behavior with a maximum at x∼0.25 and a minimum at x=1. These extrema can be qualitatively understood by considering the contributions from Kondo quasiparticle and magnetic excitations. ((orig.))

  13. Health physics around a controlled fusion research device: the Tokamak at Fontenay-aux-Roses (T.F.R.)

    International Nuclear Information System (INIS)

    The X and neutron dosimetry measurement near the magnetic confinement device for hot plasma, called T.F.R. (Tokamak, Fontenay-aux-Roses) are presented. The biological shielding consists of an ordinary concrete wall 30 cm thick; the dose rate is thus limited at 10-1 mrem per discharge (corresponding to 10 mrem per day) in the whole area frequented by people during T.F.R. operation. A numerical calculation, taking into account the true geometry and X ray reflexion by the walls and roof, and normalized to the measurements, gives some indications on the electron beam which produces X rays. The photoneutron source (up to 1010 neutrons per dischage) and the activation of the vacuum vessel result from high energy electrons (>= 10 MeV) supporting a 10 to 1,000 A current

  14. Probing the structures of gold-aluminum alloy clusters AuxAly(-): a joint experimental and theoretical study.

    Science.gov (United States)

    Khetrapal, Navneet Singh; Jian, Tian; Pal, Rhitankar; Lopez, Gary V; Pande, Seema; Wang, Lai-Sheng; Zeng, Xiao Cheng

    2016-05-01

    Besides the size and structure, compositions can also dramatically affect the properties of alloy nanoclusters. Due to the added degrees of freedom, determination of the global minimum structures for multi-component nanoclusters poses even greater challenges, both experimentally and theoretically. Here we report a systematic and joint experimental/theoretical study of a series of gold-aluminum alloy clusters, AuxAly(-) (x + y = 7,8), with various compositions (x = 1-3; y = 4-7). Well-resolved photoelectron spectra have been obtained for these clusters at different photon energies. Basin-hopping global searches, coupled with density functional theory calculations, are used to identify low-lying structures of the bimetallic clusters. By comparing computed electronic densities of states of the low-lying isomers with the experimental photoelectron spectra, the global minima are determined. It is found that for y ≥ 6 there is a strong tendency to form the magic-number square bi-pyramid motif of Al6(-) in the AuxAly(-) clusters, suggesting that the Al-Al interaction dominates the Au-Au interaction in the mixed clusters. A closely related trend is that for x > 1, the gold atoms tend to be separated by Al atoms unless only the magic-number Al6(-) square bi-pyramid motif is present, suggesting that in the small-sized mixed clusters, Al and Au components do not completely mix with one another. Overall, the Al component appears to play a more dominant role due to the high robustness of the magic-number Al6(-) square bi-pyramid motif, whereas the Au component tends to be either "adsorbed" onto the Al6(-) square bi-pyramid motif if y ≥ 6, or stays away from one another if x < y < 6. PMID:27119726

  15. Diversification and expression of the PIN, AUX/LAX and ABCB families of putative auxin transporters in Populus

    Directory of Open Access Journals (Sweden)

    Nicola eCarraro

    2012-02-01

    Full Text Available Intercellular transport of the plant hormone auxin is mediated by three families of membrane-bound protein carriers, with the PIN and ABCB families coding primarily for efflux proteins and the AUX/LAX family coding for influx proteins. In the last decade our understanding of gene and protein function for these transporters in Arabidopsis has expanded rapidly but very little is known about their role in woody plant development. Here we present a comprehensive account of all three families in the model woody species Populus, including chromosome distribution, protein structure, quantitative gene expression, and evolutionary relationships. The PIN and AUX/LAX gene families in Populus comprise 16 and 8 members respectively, and show evidence for the retention of paralogs following a relatively recent whole genome duplication. There is also evidence for differential expression across tissues within many gene pairs. The ABCB family is previously undescribed in Populus and includes 20 members, showing a much deeper evolutionary history including both tandem and whole genome duplication as well as probable loss. A striking number of these transporters are expressed in developing Populus stems and we suggest that evolutionary and structural relationships with known auxin transporters in Arabidopsis can point toward candidate genes for further study in Populus. This is especially important for the ABCBs, which is a large family and includes members in Arabidopsis that are able to transport other substrates in addition to auxin. Protein modeling, sequence alignment and expression data all point to ABCB1.1 as a likely auxin transport protein in Populus. Given that basipetal auxin flow through the cambial zone shapes the development of woody stems, it is important that we identify the full complement of proteins involved in this process. This work should lay the foundation for studies targeting specific proteins for functional characterization and in situ

  16. Politiques et idéaux éducatifs de l'Ecole québécoise et française (1963-2004). Évolutions et enjeux des discours relatifs aux valeurs et aux finalités de l'éducation scolaire du rapport Parent au rapport Thélot.

    OpenAIRE

    GIOL, Franck

    2013-01-01

    Les mutations qui affectent l’éducation scolaire des sociétés occidentales de l’après Deuxième Guerre mondiale peuvent être lues comme la marque d’une décomposition de la modernité, décomposition considérée par certains auteurs comme l’un des traits les plus saillants de la postmodernité. A ce titre, elles ne peuvent manquer d’affecter les idéaux éducatifs, et plus particulièrement les valeurs et les finalités dont l’Ecole contemporaine se trouve investie.La fin du récit de l’émancipation par...

  17. Irrepressible, truncated auxin response factors: natural roles and applications in dissecting auxin gene regulation pathways.

    Science.gov (United States)

    Ckurshumova, Wenzislava; Krogan, Naden T; Marcos, Danielle; Caragea, Adriana E; Berleth, Thomas

    2012-08-01

    The molecularly well-characterized auxin signal transduction pathway involves two evolutionarily conserved families interacting through their C-terminal domains III and IV: the Auxin Response Factors (ARFs) and their repressors the Aux/IAAs, to control auxin-responsive genes, among them genes involved in auxin transport. ( 1) (,) ( 2) We have developed a new genetic tool to study ARF function. Using MONOPTEROS (MP)/ARF5, we have generated a truncated version of MP (MPΔ), ( 3) which has lost the target domains for repression by Aux/IAA proteins. Besides exploring genetic interactions between MP and Aux/IAAs, we used this construct to trace MP's role in vascular patterning, a previously characterized auxin dependent process. ( 4) (,) ( 5) Here we summarize examples of naturally occurring truncated ARFs and summarize potential applications of truncated ARFs as analytical tools. PMID:22827953

  18. 77 FR 20802 - Applications for New Awards; Education Research and Special Education Research Grant Programs...

    Science.gov (United States)

    2012-04-06

    ...On March 6, 2012, the Institute of Education Sciences in the U.S. Department of Education published in the Federal Register (77 FR 13297) a notice inviting applications for new awards for fiscal year 2013 for the Education Research and Special Education Research Grant Programs. This notice makes several corrections to the March 6, 2012, notice inviting applications (March 6...

  19. Fight Record Of Long March Series Of Launch Vehicles

    Institute of Scientific and Technical Information of China (English)

    He Ying

    2008-01-01

    @@ On June 1,2007,China launched SinoSat-3,a communications satellite,onboard a Long March(LM)-3A launch vehicle,marking the 100th flight of the Long March series of launch vehicles and the 58th consecutive success since October 1996 (at the end of 2007,the number of consecutive successes was further increased to 62).

  20. Instrument Turns Sound of Music to Sight of Music at Aux Chandelles

    Science.gov (United States)

    Educ Media, 1970

    1970-01-01

    Described are some of the applications found in teaching retarded children for the Dynalevel, an instrument which "transforms the loudness of sound into light to provide a visual check on the tone intensity. (Author/LS)

  1. MARCH5 inactivation supports mitochondrial function during neurodegenerative stress

    Directory of Open Access Journals (Sweden)

    Jia Li

    2013-10-01

    Full Text Available Neuronal cell death is accompanied by mitochondrial dysfunction with mitochondrial maintenance critical to neuronal survival. The mitochondrial ubiquitin ligase MARCH5 has dual roles in the upkeep of mitochondrial function. MARCH5 is involved in targeted degradation of proteins harmful to mitochondria and impacts mitochondrial morphology upstream of the fission protein Drp1. In a neuronal cell model, dominant-negative MARCH5 prevents mitochondrial fragmentation during neurodegenerative stress induced by the neuron-specific reactive oxygen generator 6 hydroxydopamine, the complex I inhibitor rotenone or Alzheimer’s-releated Aβ peptide. In addition, preservation of mitochondrial function in terms of membrane potential and lower reactive oxygen generation was observed following inactivation of MARCH5. Our findings connect MARCH5 to neuronal stress responses and further emphasize the link between mitochondrial dynamics and function.

  2. Marché foncier et espace social à Mascate, Oman

    OpenAIRE

    Mokhtar, Belgacem

    2011-01-01

    Les changements socioéconomiques survenus ces dernières décennies dans les pays arabes producteurs de pétrole dans la région du golfe arabo-persique se sont intensément répercutés sur les espaces urbains, tant aux niveaux des formes que des fonctions et structures. Les structures sociales traditionnelles des villes ont été entièrement bouleversées, laissant apparaître une nouvelle configuration déterminée par des nouveaux critères de localisation essentiellement économiques. A Mascate, capita...

  3. Le marché social à vocation economique

    OpenAIRE

    Khalid Louizi

    2007-01-01

    L’auteur analyse le processus de mise en place d’un capital social ayant pour objectif de favoriser l’insertion des personnes en situation d’isolement. L’individu isolé ne profite pas des autres pour améliorer sa situation. Par conséquent, ne disposant d’aucun capital social, la personne isolée ne peut donc augmenter sa chance d’employabilité. Dans cette perspective, nous nous référerons aux travaux de recherche sur le concept de capital social et plus particulièrement à ceux portant sur le r...

  4. La représentation sociale du développement durable d'élèves de lycée professionnel en démarche d'Agenda 21. Appuis et obstacles

    OpenAIRE

    Lebatteux, Nicole

    2010-01-01

    Dans le contexte de la généralisation de l'éducation au développement durable (EDD) en France, nous interrogeons les effets de la mise en place d'une démarche d'Agenda 21 dans un lycée professionnel. D'une part, nous mènerons une réflexion sur l'intérêt de l'utilisation de la théorie des représentations sociales (RS) dans la perspective d'identifier des appuis et des obstacles aux actions éducatives menées. D'autre part, nous tenterons de répondre à plusieurs questions : La question socialeme...

  5. Les modes de présence du saumon transgénique AquAdvantage Salmon® dans la tentative de construction de son marché

    OpenAIRE

    Barrey, Sandrine

    2015-01-01

    Cette contribution interroge les modes de présence d’un saumon transgénique (l’AquAdvantage Salmon®) dans la tentative de la construction de son marché aux Etats-Unis. Est-il un objet ? Est-il un objet ordinaire ? Elle montre que celui-ci surgit de façon multiple tout au long des réseaux de relation au sein desquels il est amené à s’insérer. Tour à tout nouvel objet technique, poisson, aliment, produit, et « objet frontière », ces modes de présence instaurent aussi de nouvelles réalités socia...

  6. Ordinance 99-48 of 5 November 1999, completing ordinance 93-16 of 2 March 1993, concerning mining law

    International Nuclear Information System (INIS)

    This text modifies the following articles of ordinance 93-16 of 2 March 1993: articles 82, 83, 85, 86 and 133. The modification concerns application, renewed, extension, abandonment, transmission, sub-leasing, transformation, fusion or shearing of licences or leases of mines and quarries. Penalties due to transgression are stated in this ordinance

  7. Les adolescents aux urgences: quels sont les moyens ou les mesures envisagées par les infirmières pour identifier les comportements à risque chez des adolescents admis aux urgences afin de diminuer les récidives ?

    OpenAIRE

    CARVALHO, Tania; Jeanguenat, Michel

    2012-01-01

    Ce travail de Bachelor repose sur la problématique des adolescents aux comportements à risques se retrouvant aux urgences et dont le risque de récidive est présent. Mon questionnement se pose au niveau des infirmières des urgences et sur les moyens ou les mesures qu’elles ont afin d’identifier ces adolescents dont les comportements à risques répétitifs sont souvent une forme d’exprimer leur souffrance. Ma question de recherche est formulée de la manière suivante : Quels sont les moyens ou les...

  8. CERN Library | Agnes Chavez @ CERN | 17 March

    CERN Multimedia

    2015-01-01

    Agnes Chavez will present her work on Tuesday, 17 March 2015 at 4 p.m. in the Library (Builidng. 52-1-052) Coffee will be served from 3.30 p.m.   Agnes Chavez is an artist and educator participating in a two-week research stay organised by the ATLAS Experiment at CERN. Chavez is using the stay to develop her art and education project, Projecting pARTicles, which will be exploring particle physics through projection art. Chavez experiments with data visualization, sound and projection art to create participatory environments. She collaborates with programmers to create algorithmic drawings projected on to buildings, walls and spaces. This work explores our relationship with nature and technology, and how these and other sensory experiences determine how we perceive and interpret the world around us. For the Projecting pARTicles series she has formed an interdisciplinary team of programmers, artists, scientists and educators to investigate how we can create art and education interventions inspire...

  9. Safety Training: scheduled sessions in March

    CERN Multimedia

    DGS Unit

    2011-01-01

    The following training courses are scheduled in March. You can find the full Safety Training programme on the Safety Training online catalogue. If you are interested in attending any of the below courses, please talk to your supervisor, then apply electronically via EDH from the course description pages, by clicking on SIGN-UP. Registration for all courses is always open – sessions for the less-requested courses are organized on a demand-basis only. Depending on the demand, a session will be organised later in the year. Biocell Training 08-MAR-11 (08.30 – 10.00) in English 08-MAR-11 (10.30 – 12.00) in French 15-MAR-11 (08.30 – 10.00) in French 15-MAR-11 (10.30 – 12.00) in French 17-MAR-11 (08.30 – 10.00) in English 17-MAR-11 (10.30 – 12.00) in English 22-MAR-11 (08.30 – 10.00) in French 22-MAR-11 (10.30 – 12.00) in French 24-MAR-11 (08.30 – 10.00) in French 24-MAR-11 (10.30 – 12.00) in French 29-MAR...

  10. Report and financial statements 31 March 1992

    International Nuclear Information System (INIS)

    The directors submit their annual report and audited financial statements of the Company for the year ended 31 March 1992. The Company designs, engineers, constructs and acts as project manager and the larger part of its activities are connected with nuclear and conventional power generation. Substantial business is being undertaken by the Company's Defence and Process Divisions. The Company's Engineering Development Centre performs contract research and development and manufacturers specialist plant. The gas reactor business which services the requirements of Britain's three nuclear generating companies, Nuclear Electric, Scottish Nuclear and British Nuclear Fuels, continues to perform strongly. The PWR business division has continued to support the Sizewell B PWR construction and has pursued opportunities for new work in Eastern Europe. In the field of conventional power the Company secured a metering contract from National Power. The contract awarded by British Nuclear Fuels early in 1991 to construct a new 160 MW Combined Heat and Power gas turbine station at Sellafield is proceeding satisfactorily. Work on the AWE project management support contract at Aldermaston continues. Elsewhere safety and consultancy work for PSA Services and MoD remains an important part of the Company's defence business. The Company has obtained several contracts in the process area, notably in environmental engineering. (Author)

  11. Safety Training: places available in March

    CERN Multimedia

    HSE Unit

    2012-01-01

    There are places available in the forthcoming Safety courses. For updates and registrations, please refer to the Safety Training Catalogue. MARCH 2012 (alphabetical order, titles of courses in the original language) Echafaudages, réception et conformité (Scaffolding, reception and conformity): From 29-FEB-12 to 02-MAR-12, 09.00 – 17.30, in French (in Domarin, dept. 38) Laser Users : 09-MAR-12, 09.00 – 12.30, in English Self-Rescue Mask training : 08-MAR-12, 08.30 – 10.00, in French 08-MAR-12, 10.30 – 12.00, in English 13-MAR-12, 08.30 – 10.00, in French 13-MAR-12, 10.30 – 12.00, in English 20-MAR-12, 08.30 – 10.00, in French 20-MAR-12, 10.30 – 12.00, in English 22-MAR-12, 08.30 – 10.00, in French 22-MAR-12, 10.30 – 12.00, , in English 27-MAR-12, 08.30 – 10.00, in French 27-MAR-12, 10.30 – 12.00, in English Habilitation électrique pour Electriciens en b...

  12. Safety Training: places available in March 2013

    CERN Multimedia

    Isabelle Cusato, HSE Unit

    2013-01-01

    There are places available in the forthcoming Safety courses. For updates and registration, please refer to the Safety Training Catalogue.   March 2013 (alphabetical order) Conduite de plates-formes élévatrices mobiles de personnel (PEMP) (cherry-picker driving) 18-MAR-13 to 19-MAR-13, 8.30 – 17.30, in French with handouts in English First-Aiders – Basic course 14-MAR-13, 8.15 – 17.30, in French 21-MAR-13, 8.15 – 17.30, in English 28-MAR-13, 8.15 – 17.30, in French Habilitation électrique personnel électricien basse et haute tension (habilitation électrique for electricians in low and high voltage) 11-MAR-13 to 22-MAR-13 (total hours : 32), 9.00 – 17.30, in English Habilitation électrique personnel non électricien (electrical habilitation for non electricians) 27-MAR-13 to 28-MAR-13, 9.00 – 17.30, in French Habilitation électrique perso...

  13. Stellarator News, Issue 38, March 1995

    CERN Document Server

    Rome, J A

    1995-01-01

    Stellarator News, an international journal of the stellarator community, is Published by Fusion Energy Division, Oak Ridge National Laboratory, James A. Rome, Editor In the March 1995 issue . . . **** Exerpts from the U.S. Congress Office of Technology Assment report on TPX and Alternate Concepts. **** Edge transport and turbulence studies on U-3M The turbulent-driven particle flow is shown to be comparable with the equilibrium flow at the boundary of the configuration under Alfven-heating conditions in the U-3M torsatron. **** Topological aspects of island divertor studies on W7-AS The structure of the edge plasma in W7-AS, observed with probes, television camera, and H-alpha light agrees at low beta with vacuum field calculations: the low-valued resonances at iotabar=5/m are resolved for m = 8 to 11; external perturbations are not significant at the edge, even for iotabar = 5/10. **** 140-GHz second harmonic O-mode electron cyclotron heating at W7-AS First experimental results are presented of 140-GHz secon...

  14. Environmental Management Performance Report March 2000

    International Nuclear Information System (INIS)

    The purpose of this report is to provide the Department of Energy Richland Operations Office (DOE-RL) a report of the Project Hanford Management Contractors' (PHMC) Environmental Management (EM) performance by Fluor Hanford (FH) and its subcontractors. This report is a monthly publication that summarizes the PHMC EM performance. In addition, it includes some PHMC-level data not detailed elsewhere in the report. Section A, Executive Summary, provides an executive level summary of the cost, schedule, and technical performance described in this report. It summarizes performance for the period covered, highlights areas worthy of management attention, and provides a forward look to some of the upcoming key performance activities as extracted from the PHMC baseline. The remaining sections provide detailed performance data relative to each individual mission area (e.g., Waste Management, Spent Nuclear fuels , etc.), in support of Section A of the report. A glossary of terms is provided at the end of this report for reference purposes. Unless otherwise noted, the Safety, Conduct of Operations, and Cost/schedule data contained herein is as of January 31, 2000. All other information is as of March 1, 2000

  15. Environmental Management Performance Report March 2000

    Energy Technology Data Exchange (ETDEWEB)

    EDER, D.M.

    2000-03-16

    The purpose of this report is to provide the Department of Energy Richland Operations Office (DOE-RL) a report of the Project Hanford Management Contractors' (PHMC) Environmental Management (EM) performance by Fluor Hanford (FH) and its subcontractors. This report is a monthly publication that summarizes the PHMC EM performance. In addition, it includes some PHMC-level data not detailed elsewhere in the report. Section A, Executive Summary, provides an executive level summary of the cost, schedule, and technical performance described in this report. It summarizes performance for the period covered, highlights areas worthy of management attention, and provides a forward look to some of the upcoming key performance activities as extracted from the PHMC baseline. The remaining sections provide detailed performance data relative to each individual mission area (e.g., Waste Management, Spent Nuclear fuels , etc.), in support of Section A of the report. A glossary of terms is provided at the end of this report for reference purposes. Unless otherwise noted, the Safety, Conduct of Operations, and Cost/schedule data contained herein is as of January 31, 2000. All other information is as of March 1, 2000.

  16. Heliotron E results (1981-March 1988)

    International Nuclear Information System (INIS)

    The original proposal of heliotron configuration was made by Professor Uo. The experimental studies were started in 1959 by Heliotron A, and Heliotron B (1960), Heliotron C (1965), Heliotron D (1970), Heliotron DM (1975), Heliotron E (1980) and Heliotron DR (1981) followed for more than 25 years in order to establish the proof of the principle of heliotron configuration. In this way, the heliotron has become a promising candidate for toroidal magnetic fusion reactors. The Heliotron E results obtained in the Plasma Physics laboratory, Kyoto University, have been well accepted in the world fusion community. The data obtained in the Heliotron E are the basis for the design of a next large helical device in Japan. To commemorate the achievements of Professor Uo, the collection of all the papers concerning the Heliotron E that were published in various scientific journals from 1981 through March, 1988, including the proceedings of the European Physical Society Conference and the IAEA International Conference on Plasma Physics and Fusion Research is published. 74 papers are grouped into five categories: confinement and heating experiments, plasma-wall interaction studies, diagnostics, heating systems, and the theory related to stellarator/heliotron devices. (Kako, I.)

  17. Safety Training: places available in March 2014

    CERN Multimedia

    Safety Training team, HSE Unit

    2014-01-01

    There are places available in the forthcoming Safety courses. For updates and registrations, please refer to the Safety Training Catalogue (see here).   March 2014 (alphabetical order) Ergonomics - Worksite and Workshop 24-MAR-14, 9.00 – 17.30, in French Fire Extinguisher 05-MAR-14, 10.30 – 12.00, in French 12-MAR-14, 8.30 – 10.00, in English 12-MAR-14, 10.30 – 12.00, in English First Aider - Level 1 – Initial 27-MAR-14, 8.30 – 17.30, in English First Aider – Refresher 20-MAR-14, 8.30 – 12.30, in French 20-MAR-14, 13.30 – 17.30, in French Habilitation électrique - Electrician Low Voltage – Initial 17-MAR-14 to 19-MAR-14, 9.00 – 17.30, in French 24-MAR-14 to 26-MAR-14, 9.00 – 17.30, in English Habilitation électrique - Electrician Low and High Voltage – Initial 18-MAR-14 to 21-MAR-14, 9.00 – 17.30, in English Habilitation &eacut...

  18. KURRI progress report 1995. April 1995 - March 1996

    International Nuclear Information System (INIS)

    1995 is the first year into the 'second life' of KURRI. Following the suggestion of the Science Council, the research divisions were reorganized from old 16 divisions into 6 large divisions on April 1, 1995, and the five year modernization program of the Kyoto University reactor (KUR) and its related facilities was begun. The KUR added 1,165 h of operation during the past fiscal year. 2,002 researchers in total visited the KURRI to perform 148 experimental applications or to attend 16 symposia and 6 workshops. At the end of three year period, the scientific achievements of five research projects were reviewed during the annual scientific meeting of the KURRI held on January 25 and 26, 1996. On March 18, 1996, the KURRI celebrated the reorganization of the Center of Excellence, and the international symposium on the advance in neutron optics and the related research facilities was held for the following three days. The replacement of the heavy water facility was carried out during the reactor shutdown from December, 1995 to May, 1996. The user operation of the KUR was resumed on July 15, 1996. In this book, research activities, organization, research divisions and laboratories, the operation and development of facilities, radiation protection and monitoring, publications, meetings and seminars are reported. (K.I.)

  19. KURRI progress report 1995. April 1995 - March 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-11-01

    1995 is the first year into the `second life` of KURRI. Following the suggestion of the Science Council, the research divisions were reorganized from old 16 divisions into 6 large divisions on April 1, 1995, and the five year modernization program of the Kyoto University reactor (KUR) and its related facilities was begun. The KUR added 1,165 h of operation during the past fiscal year. 2,002 researchers in total visited the KURRI to perform 148 experimental applications or to attend 16 symposia and 6 workshops. At the end of three year period, the scientific achievements of five research projects were reviewed during the annual scientific meeting of the KURRI held on January 25 and 26, 1996. On March 18, 1996, the KURRI celebrated the reorganization of the Center of Excellence, and the international symposium on the advance in neutron optics and the related research facilities was held for the following three days. The replacement of the heavy water facility was carried out during the reactor shutdown from December, 1995 to May, 1996. The user operation of the KUR was resumed on July 15, 1996. In this book, research activities, organization, research divisions and laboratories, the operation and development of facilities, radiation protection and monitoring, publications, meetings and seminars are reported. (K.I.)

  20. L’INFORMATION ET LA PARTICIPATION DU PUBLIC AUX DÉCISIONS CONCERNANT L’ENVIRONNEMENT

    Directory of Open Access Journals (Sweden)

    Vasilica NEGRUŢ

    2005-09-01

    Full Text Available The achievement of the fundamental human right to a healthy environment involves public participation in the elaboration and application of the environmental decisions. An important contribution to the development of the significance of principle at a European level had The Aarhus Convention (1993, concerning the public access to information, the participation in decision making and access to the environmental justice.

  1. KURRI progress report 1999. April 1999 - March 2000

    International Nuclear Information System (INIS)

    The KUR (Kyoto-University Reactor) was operated 1,462 hours though some troubles happened at control rods in the fiscal year of 1999. In the same time, we accepted 6,082 man-day researchers for their experiments and scientific meeting at KURRI (Kyoto-University Research Reactor Institute). Two international symposia supported by KURRI on the neutron radiography and on the environmental plutonium were also held in the year. Kyoto University Critical Assembly (KUCA) was celebrated for its 25th anniversary on 10th March 2000. During 25 years 1,652 students came from outside to take the educational program of KUCA, which was open to all Japanese university graduate courses. The progress report compiles one-page briefings of research activities by authors on following 10 categories: 1) Slow Neutron Physics and Neutron Scattering (22 authors). 2) Nuclear Physics and Nuclear Data (12 authors). The 6 papers among them are on Project Research on Systematic Studies of Neutron Rich Nuclei by Using ISOL (Isotope Separator On-Line). 3) Reactor Physics and Reactor Engineering (9 authors). 4) Material Science and Radiation Effect (42 authors). Project Research on the Condensed Matter by Use of Nuclear Probe includes 10 papers, and Project Research on Material Irradiation Effect under Controlled Irradiation Fields includes 10 papers. 5) Geochemistry and Environmental Science (29 authors). The 4 papers among them are on Project Research on Ultra-Low-Level Environmental Radio-Nuclide Analysis. 6) Life-Science and Medical Science (18 authors). Project Research on Non-Equilibrium Radical Process in Biological Molecule System includes 5 papers, and Project Research on Biological Effects of Intermediate Energy Neutron of the KUR Facility on the Mammalian Cells includes 3 papers. 7) Neutron Capture Therapy (26 authors). 8) Neutron Radiography and Radiation Application (4 authors). 9) TRU and Nuclear Chemistry (14 authors). The 9 papers among them are on Project Research on Nuclear and

  2. Probing the structures of gold-aluminum alloy clusters AuxAly-: a joint experimental and theoretical study

    Science.gov (United States)

    Khetrapal, Navneet Singh; Jian, Tian; Pal, Rhitankar; Lopez, Gary V.; Pande, Seema; Wang, Lai-Sheng; Zeng, Xiao Cheng

    2016-05-01

    Besides the size and structure, compositions can also dramatically affect the properties of alloy nanoclusters. Due to the added degrees of freedom, determination of the global minimum structures for multi-component nanoclusters poses even greater challenges, both experimentally and theoretically. Here we report a systematic and joint experimental/theoretical study of a series of gold-aluminum alloy clusters, AuxAly- (x + y = 7,8), with various compositions (x = 1-3 y = 4-7). Well-resolved photoelectron spectra have been obtained for these clusters at different photon energies. Basin-hopping global searches, coupled with density functional theory calculations, are used to identify low-lying structures of the bimetallic clusters. By comparing computed electronic densities of states of the low-lying isomers with the experimental photoelectron spectra, the global minima are determined. It is found that for y >= 6 there is a strong tendency to form the magic-number square bi-pyramid motif of Al6- in the AuxAly- clusters, suggesting that the Al-Al interaction dominates the Au-Au interaction in the mixed clusters. A closely related trend is that for x > 1, the gold atoms tend to be separated by Al atoms unless only the magic-number Al6- square bi-pyramid motif is present, suggesting that in the small-sized mixed clusters, Al and Au components do not completely mix with one another. Overall, the Al component appears to play a more dominant role due to the high robustness of the magic-number Al6- square bi-pyramid motif, whereas the Au component tends to be either ``adsorbed'' onto the Al6- square bi-pyramid motif if y >= 6, or stays away from one another if x = 6 there is a strong tendency to form the magic-number square bi-pyramid motif of Al6- in the AuxAly- clusters, suggesting that the Al-Al interaction dominates the Au-Au interaction in the mixed clusters. A closely related trend is that for x > 1, the gold atoms tend to be separated by Al atoms unless only the magic

  3. Le rôle politique des revues conservatrices aux Etats-Unis depuis les années 1980

    Directory of Open Access Journals (Sweden)

    Marie-Cécile Naves

    2004-09-01

    Full Text Available L’article vise à étudier, à travers l’exemple de la théorie de la « Fin de l’Histoire » de Fukuyama, en quoi la revue américaine The National Interest est, à l’instar d’autres revues conservatrices, un instrument médiatique crucial pour la diffusion de certains idéaux du Parti Républicain aux Etats-Unis depuis le milieu des années 1980. Il s’agit par là même de réfléchir aux conditions de production et de diffusion de cette théorie, dans un contexte géopolitique et intellectuel exceptionnel, celui de la fin de la guerre froide. L’évolution des liens entre intellectuels et pouvoir politique américains, avec pour enjeu, depuis le début des années 1980, la politique étrangère, sont au cœur de cette réflexion.El artículo intenta estudiar a través del ejemplo de la teoría del « Fin de la Historia » de Fukuyama, hasta que punto la revista americana The National Interest es, a semejanza de otras revistas conservadoras, un instrumento crucial para la difusión de algunos ideales del partido republicano en los estados Unidos desde mediados de los años ochenta. Se trata de reflexionar sobre las condiciones de producción y de difusión de esta teoría, en un contexto geopolítico e intelectual excepcional, el del final de la guerra fría. El centro de esta reflexión es la evolución de las relaciones entre los intelectuales y el poder político americano, teniendo como telón de fondo, la política exterior.The article aims at studying, through the example of Fukuyama’s theory of the « End of History », how the American journal The National Interest, as other conservative journals, has, since the mid 1980s, been a crucial media instrument for the dissemination of some ideals of the Republican Party. We have thus to think about the conditions of production and dissemination of this theory in an exceptional geopolitical and intellectual context – the end of the cold war. The changing links between

  4. La comorbidité entre dépendance aux opiacés et dépression : mécanismes sérotoninergiques dans un modèle murin

    OpenAIRE

    Lutz, Pierre-Eric

    2012-01-01

    L’addiction ou dépendance aux substances psychoactives est une affection chronique, fréquente et grave, émaillée de rechutes et de périodes d’abstinence. Les études épidémiologiques montrent que l’abstinence aux opiacés est fortement associée à une prévalence accrue de la dépression. Nous résumons ici les principaux aspects cliniques de la dépendance aux opiacés et de la dépression, en détaillant leurs mécanismes physiopathologiques. Puis, nous présentons notre modèle d’abstinence aux opiacés...

  5. Fuel Cycle Research and Development. Technical Monthly - March 2012

    International Nuclear Information System (INIS)

    the INL. Pratap Sadasivan, and his team have been working on the new metrics for proliferation and security. They have defined the basic structure and method, implementation strategy, needed data, and approach to application. Initial drafting of several sections of the milestone document was started. The MPACT Working Group meeting was hosted at SRS on March 13-15, 2012. Approximately 65 researchers from national labs, industry and universities attended the technical meetings at the Center for Hydrogen Research on March 13-14 with a working lunch each day. 37 persons participated in a site tour, including H-Canyon and the MOX Facility, on March 15. As part of the WG meeting, a presentation by SRNL was given on H-Canyon history, capabilities and opportunities for its use as an MPACT technology test bed. Used fuels storage security analysis, guidance and best practices - Coordination discussions continued for the MPACT used fuel security work packages.

  6. Mémoire de guerre et nouvelles pratiques culturelles sous la IIIe République : l’exemple du monument aux morts de 1870 à Marseille

    OpenAIRE

    Dalisson, Rémi

    2013-01-01

    La gestion de la mémoire de la guerre de 1870/1871 fut un enjeu capital pour la Troisième République. Comme les autres fêtes, elle devait la légitimer. Les érections et les inaugurations de monuments aux morts aux combattants « morts pour la patrie » est emblématique de cette politique culturelle de masse. L’exemple de Marseille, qui inaugura son monument en 1894, à un moment charnière de l’histoire nationale, illustre les ambiguïtés de la politique de la mémoire de guerre républicaine. Il mo...

  7. Le culte lua’ aux esprits des princes (Thaïlande). La construction d’une légitimité

    OpenAIRE

    Guégan, Emma

    2012-01-01

    Parmi les Lua’, groupe de langue austro-asiatique de la province de Nan en Thaïlande, une communauté se targue d’être garante de la prospérité de l’ensemble des habitants, très majoritairement taï, du territoire de l’ancienne principauté de Pua. Ils affirment être les seuls capables d’effectuer le culte aux « esprits des princes », pourtant autrefois exclusivement réalisé par des princes taï. En examinant les discours et pratiques liés à ces anciens princes et aux rites qui leur sont adressés...

  8. Un cadre conceptuel pour explorer localement les facteurs de vulnérabilité et les options d’adaptation aux changements climatiques

    OpenAIRE

    Beaulieu, Nathalie; Santos Silva, Julia; Plante, Steve

    2016-01-01

    Cet article décrit un cadre conceptuel pour explorer les facteurs affectant la vulnérabilité aux aléas reliés au climat ainsi que des options d’adaptation aux changements climatiques. Ce cadre permet de guider des réflexions dans un langage simple et non technique, tout en étant compatible avec différentes conceptualisations de la vulnérabilité. Il a été développé à travers l’élaboration d’un plan d’action pour l’adaptation avec l’administration municipale de Rivière-au-Tonnerre sur la Côte-N...

  9. Les trajectoires de conversion écologique face aux enjeux économiques et sociaux du « logement durable » en France

    OpenAIRE

    Hamman, Philippe; Frank, Cécile; Mangold, Marie

    2014-01-01

    Cet article interroge les trajectoires de conversion écologique des modes de vie à travers un questionnement du logement en développement durable en France, et retient deux groupes cibles : les jeunes primo-accédants et les séniors, dans trois régions différentes. Par rapport aux programmes immobiliers axés sur le « durable » qui se développent à l’heure actuelle, et mettent fréquemment l’accent sur une dimension technique liée aux économies d’énergie, la recherche révèle la pluralité des dyn...

  10. Comportements par rapport au VIH/sida et aux autres infections sexuellement transmissibles dans l'univers de la prostitution féminine

    OpenAIRE

    Meystre-Agustoni Giovanna; Voellinger Rachel; Balthasar Hugues; Dubois-Arber Françoise

    2008-01-01

    L'étude actuelle vise à décrire la situation face au VIH/sida et aux autres IST des prostituées (femmes, transgenres) exerçant dans la rue, dans les salons, dans les cabarets et autres bars en Suisse. [...] L'étude a pour objectifs d'apporter des éléments de réponse aux questions suivantes : Importance numérique, évolution et modalités d'exercice de la prostitution féminine. - "Profil" (nationalité, etc.) des prostituées selon le lieu d'exercice. - Profil des prostituées sous l'angle de la lo...

  11. Outrepasser les limites des techniques classiques de Prise d'Empreintes grace aux Reseaux de Neurones

    CERN Document Server

    Burroni, Javier

    2010-01-01

    We present an application of Artificial Intelligence techniques to the field of Information Security. The problem of remote Operating System (OS) Detection, also called OS Fingerprinting, is a crucial step of the penetration testing process, since the attacker (hacker or security professional) needs to know the OS of the target host in order to choose the exploits that he will use. OS Detection is accomplished by passively sniffing network packets and actively sending test packets to the target host, to study specific variations in the host responses revealing information about its operating system. The first fingerprinting implementations were based on the analysis of differences between TCP/IP stack implementations. The next generation focused the analysis on application layer data such as the DCE RPC endpoint information. Even though more information was analyzed, some variation of the "best fit" algorithm was still used to interpret this new information. Our new approach involves an analysis of the compos...

  12. Introduction aux Méthodes d'Appariement Optimal
    (Optimal Matching Analysis)

    OpenAIRE

    Lesnard, Laurent; De Saint Pol, Thibaut

    2006-01-01

    http://www.crest.fr/doctravail/document/2004-15.pdf International audience This paper aims at introducing a new statistical technique to describe sequences: Optimal Matching Analysis (OMA). Borrowed to biology, this technique is based on rather simple principles that can be adapted to suit the theoretical requirements of many analyses. Since OMA is not based on any causal assumption, this method is particularly of interest to sociologists to analyze action as a process. Two applications...

  13. Introduction aux Méthodes d’Appariement Optimal (Optimal Matching Analysis)

    OpenAIRE

    Laurent Lesnard; Thibaut de Saint-Pol

    2004-01-01

    Introduction to Optimal Matching Analysis: This paper provides an introduction to a new statistical technique for describing sequences: Optimal Matching Analysis (OMA). Borrowed from biology, this technique is based on rather simple principles that can be adapted to suit the theoretical requirements of different analyses. Since OMA is not based on any causal assumptions, it is particularly well-adapted for sociologists who retemporalize action by analyzing it as a process. Two applications of...

  14. Outrepasser les limites des techniques classiques de Prise d'Empreintes grace aux Reseaux de Neurones

    OpenAIRE

    Burroni, Javier; Sarraute, Carlos

    2010-01-01

    We present an application of Artificial Intelligence techniques to the field of Information Security. The problem of remote Operating System (OS) Detection, also called OS Fingerprinting, is a crucial step of the penetration testing process, since the attacker (hacker or security professional) needs to know the OS of the target host in order to choose the exploits that he will use. OS Detection is accomplished by passively sniffing network packets and actively sending test packets to the targ...

  15. Workshop proceedings : Emergency preparedness and response : March 4, 2003 (Grande Prairie) and March 6, 2003 (Calgary)

    Energy Technology Data Exchange (ETDEWEB)

    Hunt, K. [Alberta Energy and Utilities Board, Calgary, AB (Canada); Gibson, T. [Gecko Management Consultants, Calgary, AB (Canada)

    2003-03-01

    Several issues had been identified during the stakeholder consultation program for Guide 71: Emergency Preparedness and Response Requirements For the Upstream Petroleum Industry, and the Alberta Energy and Utilities Board (EUB) conducted, in May 2002, a workshop to address these issues. In addition, two subsequent workshops were held, one in Grande Prairie on March 4, 2003, and another in Calgary on March 6, 2003. They were held to gather additional information concerning the requirements for testing and exercising emergency preparedness and response capabilities for sour gas facilities. Representatives from a variety of organizations were present, including: energy companies, Emergency Management Alberta, local municipalities, Alberta Health and Wellness and Regional Health Authorities, general public, other regulators, as well as emergency response planning consultants. Special emphasis was placed on the following topics in support of Public Safety and Sour Gas Provincial Advisory Committee recommendations: exercise criteria, EUB participation, and the role of the public in the exercises. The present document contains the opening slide presentation to the workshops, a list of attendees, notes taken throughout the course of the workshops, as well as the written submission from the City of Calgary, Disaster Services.

  16. KURRI progress report 2005. April 2005 - March 2006

    International Nuclear Information System (INIS)

    Radiation Effects. (5) Geochemistry and Environmental Science. (6) Life Science and Medical Science. (7) Neutron Capture Therapy. (8) Neutron Radiography and Radiation Application. (9) Health Physics and Waste Management. Original Research includes the 8 research issues. This progress report also includes organization, committee members, research divisions and laboratories, education, operation and development of facilities, radiation protection and monitoring, publications from April 2005 to March 2006, meeting, seminars and visiting scientists. (J.P.N.)

  17. Gestion bancaire du risque de non-remboursement des crédits aux entreprises : une revue de la littérature

    OpenAIRE

    Rougès, Véronique

    2003-01-01

    Les banquiers subissent un risque de non-remboursement des crédits aux entreprises. Ce risque peut être réduit lors des deux phases du crédit : lors de l'octroi, par une analyse du risque de défaillance et la rédaction de contrats incitatifs, et en cours de vie, par un suivi actif du crédit.

  18. A TILLING allele of the tomato Aux/IAA9 gene offers new insights into fruit set mechanisms and perspectives for breeding seedless tomatoes

    OpenAIRE

    Mazzucato, Andrea; Cellini, Francesco; Bouzayen, Mondher; Zouine, Mohamed; Mila, Isabelle; Minoia, Silvia; Petrozza, Angelo; Picarella, Maurizio E.; Ruiu, Fabrizio; Carriero, Filomena

    2015-01-01

    Parthenocarpy is a desired trait in fruit crops; it enables fruit set under environmental conditions suboptimal for pollination, and seedless fruits represent a valuable consumer product. We employed TILLING-based screening of a mutant tomato population to find genetic lesions in Aux/IAA9, a negative regulator of the auxin response involved in the control of fruit set. We identified three mutations located in the coding region of this gene, including two singlebase substitutions and one singl...

  19. Social activists to speak at Virginia Tech March 28

    OpenAIRE

    Elliott, Jean

    2006-01-01

    Internationally known musicians and social activists, Guy and Candie Carawan, will perform "We Shall Overcome: The Sound of Social Activism" on March 28, 7 p.m., in the Chemistry/Physics building, Room 130, on the Virginia Tech campus.

  20. Hanford Laboratories Operation monthly activities report, March 1958

    Energy Technology Data Exchange (ETDEWEB)

    Parker, H.M.

    1958-04-15

    This is the monthly report for the Hanford Laboratories Operation, March, 1958. Metallurgy, reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities, visits, biology operation, physics and instrumentation research, and employee relations are discussed.

  1. Crescent Lake Refuge Report of activities : Month of March, 1938

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This narrative report for Crescent Lake National Wildlife Refuge outlines Refuge accomplishments for March of 1938. The report begins by summarizing the weather...

  2. Whooping crane recovery activities : October, 2004 - March, 2005

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Summary of whooping crane recovery activities from October, 2004 to March, 2005 for the Aransas/Wood Buffalo flock, the Florida non-migratory flock, and captive...

  3. Hanford Laboratories Operation monthly activities report, March 1957

    Energy Technology Data Exchange (ETDEWEB)

    Albaugh, E.W.

    1957-04-15

    This is the monthly report of the Hanford Laboratories Operation, March, 1957. Metallurgy, reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities, visits, biology operation, physics and instrumentation research, and employee relations are discussed.

  4. Hanford Atomic Products Operation monthly report for March 1956

    Energy Technology Data Exchange (ETDEWEB)

    1956-04-20

    This is the monthly report for the Hanford Laboratories Operation, March, 1956. Metallurgy, reactor fuels, chemistry, dosimetry, separation processes, reactor technology; financial activities, visits, biology operation, physics and instrumentation research, employee relations, pile technology, safety and radiological sciences are discussed.

  5. Narrative report: March 1937: Medicine Lake Migratory Waterfowl Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This monthly narrative report for Medicine Lake NWR summarizes Works Progress Administration WPA projects and water conditions during March, 1937. Photographs are...

  6. Hanford Laboratories Operation monthly activities report, March 1962

    Energy Technology Data Exchange (ETDEWEB)

    1962-04-16

    This is the monthly report for the Hanford Laboratories Operation March 1962. Reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities, biology operation, physics and instrumentation research, operations research and synthesis, programming, and radiation protection operation are discussed.

  7. Results of Back Bay Nutrient Sampling, April 1986 - March 1987

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — To determine nutrient levels in Back Bay, water samples were collected monthly from April, 1986 through March, 1987. Surface water samples were collected at six...

  8. Annual progress report of the Fontenay-aux-Roses Research Group, January 1 to December 31 1974

    International Nuclear Information System (INIS)

    The salient events of 1974 were the full-time working of TFR at Fontenay-aux-Roses and the building of Petula and Wega at Grenoble. The remounting of TFR after reinforcement of the vacuum chamber was followed by an increase in the small plasma radius by elimination of the copper shell to prolong the present program. In agreement with the Culham laboratory a common program to develop the injection of neutral particles up to the performance needed for the JET has begun. At Grenoble the mounting of Petula was finished and the technological problems of the vacuum chamber (metallic joints for the alumina-metal joints) have been solved. The mounting of Wega was pursued simultaneously with that of Petula within the European context of a collaboration with Garching and the Royal Military School. In the ''Ionized Gas Theory Section'' work was centered on: M.H.D. equilibrium and stability, plasma development in Tokamaks, waves, transport and convection, spectroscopy, micro-instabilities and turbulence. Fundamental physics covers the subjects: EQUATOR, EOS-POP and ODE experiments, HCN laser and atomic collisions. The activity in open configuration concerned the experiment Bille-en-Tete MB

  9. KURRI progress report 2012. April 2012 - March 2013

    International Nuclear Information System (INIS)

    In FY2012, KUR reactor was operated for 1156 hours and KUCA was operated for 933 hours. A large number of research subjects had been enrolled, which covered various fields of nuclear science and technology, material science, radiation life science and radiation medical science. It was noted that 68 patients had been treated in the clinical studies of the boron neutron capture therapy (BNCT) using KUR in this period. Some special research projects were in progress at KURRI. One was the project on the Accelerator Driven System (ADS) by using a Fixed Field Alternating Gradient (FFAG) accelerator combined with KUCA. The world's first ADS experiment had been successfully conducted on March 2009, and the 150 MeV proton beam was being provided for the ADS experiment and for the related studies including development of target materials. In another project, the world's first clinical trial of the BNCT was started in the fall using a proton accelerator, based on the successful clinical studies using KUR. Such leading research activities as well as educational activities at KURRI were highly rated in the external evaluation. The results of research activities including these activities were reported in this progress report as annual summary of experimental research activities, which also included research and investigations performed with the joint use of such research resources as reactors and accelerators, while state of research divisions and laboratories, and operation and development of facilities were updated. Project research was on irradiation effects on microstructural evolution in materials irradiated by particles with high energy, application studies on effective use of F-elements, science and engineering of unstable nuclei and their uses on condensed matter physics, development on neutron imaging application, abnormal aggregation of proteins by post-translational modifications, and study of repair mechanism, analyzing tumor microenvironment and

  10. KURRI progress report 2006. April 2006 - March 2007

    International Nuclear Information System (INIS)

    Neutron Scattering. (2) Nuclear Physics and Nuclear Data. (3) Reactor Physics and Reactor Engineering. (4) Material Science and Radiation Effects. (5) Geochemistry and Environmental Science. (6) Life Science and Medical Science. (7) Neutron Capture Therapy. (8) Neutron Radiography and Radiation Application. Original Research includes the 5 research issues. This progress report also includes organization, committee members, research divisions and laboratories, education, operation and development of facilities, radiation protection and monitoring, publications from April 2006 to March 2007, meeting, seminars and visiting scientists. (J.P.N.)

  11. Western Gas Sands Project. Status report, 1 March-31 March 1980

    Energy Technology Data Exchange (ETDEWEB)

    1980-01-01

    The March, 1980 progress of the government-sponsored projects directed towards increasing gas production from the low permeability gas sands of the western United States is summarized in this report. A site for the multi-well experiment was approved by the industry review committee; drilling is expected by mid-summer. Bartlesville Energy Technology Center continued work on fracture conductivity, rock/fluid interaction, and log evaluation and interpretation techniques. Lawrence Livermore Laboratory continued experimental and theoretical work on hydraulic fracturing mechanics and analysis of well test data. Analysis of data obtained from a test of the borehole seismic unit by Sandia Laboratories continued. The DOE Well Test Facility continued bottom-hole pressure buildup measurements at the Colorado Interstate Gas Company Miller No. 1 well.

  12. Une carte de saillance adaptée aux images HDR

    OpenAIRE

    Petit, Josselin; BREMOND, Roland; TAREL, Jean Philippe

    2008-01-01

    A ce jour, l'évaluation de la qualité des algorithmes de reproduction de tons (tone mapping operators, ou TMO) n'a été faite que pour des situations statiques, alors que l'essentiel des applications des images de synthèse (vidéo, télévision, cinéma, jeux vidéos) proposent des images dynamiques. Nous pensons que le problème de l'évaluation dynamique des TMO peut être résolu si l'on dispose d'un modèle capable de prédire l'orientation du regard dans des images dynamiques, qui conduirait à une m...

  13. Contributions aux schémas d'Analyse/Synthèse en Animation par ordinateur

    OpenAIRE

    Courty, Nicolas

    2013-01-01

    Dans le domaine infographie, l'animation par ordinateur désigne notre capacité à faire se mouvoir, via un ensemble de programmes ou d'algorithmes, des représentations géométriques virtuelles d'objets le plus souvent réels. Si les jeux vidéos ou le champ des effets spéciaux sont les premiers domaines d'application, le développement des technologies de l'information dans notre vie de tous les jours a ouvert la voie à un grand nombre d'autres utilisations. L'animation à proprement parler nécessi...

  14. Développement d'une technique d'analyse hautement sensible et polyvalente par spectroscopie de plasma induit par laser : applications aux aérosols et aux matériaux biologiques

    OpenAIRE

    Leone, Nicolas

    2007-01-01

    The ns-duration pulsed laser-induced breakdown (10e4 K and 10e16 electron.cm-3) spectroscopy (LIBS) is developed for characterizing every chemical or biological sample (gas, homogeneous or heterogeneous surface, and aerosol) in situ, rapidly (~10e-6 s), in a sensitive and reproducible manner, for classification purposes, and even identification. The optically sampled volume is reproducible for the plasmas in gases (~1mm3) and on surfaces (diameter of impact~10e2 µm2). The calibration of the t...

  15. Méthodes et outils logiciels pour la conception de sondes oligonucléotidiques pour puces à ADN. Applications aux biopuces transcriptomiques et aux biopuces de type phylogénétique

    OpenAIRE

    Rimour, Sébastien

    2006-01-01

    We address the problem of the design of oligonucleotide probes for microarrays with solutions on the computer, but also biologically, with the experimental validation of our methods. We present a new approach that combines high specificity of the probes with good sensitivity. In terms of software engineering, we lead a reflection on réutisabilité software components in the field of DNA microarrays, which leads us to propose a "Platform Independent Model" for the design of probes, consistent w...

  16. Tolérance aux dommages générés par impact de structures composites épaisses. Application aux réservoirs composites hyperbares.

    OpenAIRE

    Guillaud, Nicolas

    2015-01-01

    This thesis took place within the framework of the project TOLEDO (Tolerance in the damage by impact of the hyperbaric reservoirs) managed by Air Liquide in partnership with the CEA Le Ripault and PPRIME institute.The hydrogen is stored within the type IV vessel at a servive pressure of 700 bar.These composite structures present as peculiarities to be thick (> 30 mm), to have a strong curvature and to be precharged in pressure during a possible impact.Our work showed that these peculiarities ...

  17. 3 and 4 oxidation state element solubilities in borosilicate glasses. Implement to actinides in nuclear glasses; Solubilite des elements aux degres d'oxydation (3) et (4) dans les verres de borosilicate. Application aux actinides dans les verres nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Cachia, J.N

    2005-12-15

    In order to ensure optimal radionuclides containment, the knowledge of the actinide loading limits in nuclear waste glasses and also the comprehension of the solubilization mechanisms of these elements are essential. A first part of this manuscript deals with the study of the differences in solubility of the tri and tetravalent elements (actinides and surrogates) particularly in function of the melting temperature. The results obtained indicate that trivalent elements (La, Gd, Nd, Am, Cm) exhibit a higher solubility than tetravalent elements (Hf, Th, Pu). Consequently, it was planned to reduce plutonium at the oxidation state (III), the later being essentially tetravalent in borosilicate glasses. An innovating reduction process of multi-valent elements (cerium, plutonium) using silicon nitride has been developed in a second part of this work. Reduced plutonium-bearing glasses synthesized by Si{sub 3}N{sub 4} addition made it possible to double the plutonium solubility from 2 to 4 wt% at 1200 deg C. A structural approach to investigate the differences between tri and tetravalent elements was finally undertaken. These investigations were carried out by X-rays Absorption Spectroscopy (EXAFS) and NMR. Trivalent rare earth and actinide elements seem to behave as network modifiers while tetravalent elements rather present true intermediaries' behaviour. (author)

  18. Physical and other data from CTD casts in the Gulf of Alaska as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 20 March 1981 to 03 April 1981 (NODC Accession 8300087)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical and other data were collected from CTD casts in the Gulf of Alaska from 20 March 1981 to 03 April 1981. Data were collected by Science Applications, INC....

  19. Intermittent criticality revealed in ULF magnetic fields prior to the 11 March 2011 Tohoku earthquake (MW = 9)

    Science.gov (United States)

    Contoyiannis, Y.; Potirakis, S. M.; Eftaxias, K.; Hayakawa, M.; Schekotov, A.

    2016-06-01

    The ultra-low-frequency (ULF) magnetic variations recorded prior to the 11 March 2011 Tohoku earthquake (EQ) are analyzed using the method of critical fluctuations (MCF). The first application of this specific method to ULF magnetic variations is performed on the unprocessed H- (horizontal) and Z- (vertical) components, as well as on the unprocessed total intensity, F, of the recorded magnetic field. The motivation for the present study was given by recent research results reporting criticality features in the ULF magnetic fields prior to the 2011 Tohoku EQ. These results call for a further analysis in order to verify the existence of criticality embedded in the specific ULF recordings using an independent method, as well as to investigate the type of the embedded criticality. The application of MCF indeed verifies the existence of criticality in the ULF magnetic fields a few days to one week before the occurrence of the main shock. Specifically, clear signatures of intermittent criticality are found in the recordings of 4 March 2011, while indications of critical behavior are also found in 3 and 6 March recordings, although not of the "stability" of those of 4 March. Moreover, it is found that only the ULF data of the nearest, to the epicenter of the EQ, geomagnetic observatory presented criticality. This finding further corroborates the view that the presented signal is indeed a precursor to the specific EQ.

  20. Absolute NMR shielding scales and nuclear spin–rotation constants in 175LuX and 197AuX (X = 19F, 35Cl, 79Br and 127I)

    International Nuclear Information System (INIS)

    We present nuclear spin–rotation constants, absolute nuclear magnetic resonance (NMR) shielding constants, and shielding spans of all the nuclei in 175LuX and 197AuX (X = 19F, 35Cl, 79Br, 127I), calculated using coupled-cluster singles-and-doubles with a perturbative triples (CCSD(T)) correction theory, four-component relativistic density functional theory (relativistic DFT), and non-relativistic DFT. The total nuclear spin–rotation constants determined by adding the relativistic corrections obtained from DFT calculations to the CCSD(T) values are in general in agreement with available experimental data, indicating that the computational approach followed in this study allows us to predict reliable results for the unknown spin–rotation constants in these molecules. The total NMR absolute shielding constants are determined for all the nuclei following the same approach as that applied for the nuclear spin–rotation constants. In most of the molecules, relativistic effects significantly change the computed shielding constants, demonstrating that straightforward application of the non-relativistic formula relating the electronic contribution to the nuclear spin–rotation constants and the paramagnetic contribution to the shielding constants does not yield correct results. We also analyze the origin of the unusually large absolute shielding constant and its relativistic correction of gold in AuF compared to the other gold monohalides