WorldWideScience

Sample records for application aux marches

  1. 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.

  2. 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.).

  3. 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

  4. Etude sur les tendons en materiaux composites et leur application aux ancrages postcontraints

    Science.gov (United States)

    Chennouf, Adil

    de ciment a permis d'ameliorer la resistance a l'adherence. (6) Il existe une relation lineaire entre la charge maximum et la longueur ancree des tendons. Des equations sont proposees. (7) La capacite a l'arrachement des ancrages injectes augmente avec l'augmentation du module d'elasticite du milieu encaissant. (8) Les mono-tendons et multi-tendons en materiaux composites injectes sur 1000 mm ont montre des comportements a l'arrachement acceptables conformement aux codes. (9) Les rigidites apparentes des tendons a base de fibres d'aramide sont de trois a cinq fois inferieures a celles des tendons a base de fibres de carbone. (10) L'amorce de la decohesion en haut de la zone ancree ne semble se produire qu'au-dela d'une charge de 0,35 fpu pour les tendons a base de fibres de carbone alors qu'elle prend naissance des l'application de la charge pour les tendons a base de fibres d'aramide. (11) Le taux de fluage depend du niveau de chargement ainsi que des caracteristiques geometriques et mecaniques de l'ancrage (type de fibres, fini de surface, nombre de tendons, etc.). (12) Des equations regissant le comportement au fluage des tendons en materiaux composites ont ete etablies pour une periode d'essai de 60 mn. (Abstract shortened by UMI.)

  5. 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)

  6. Le secteur bovin (viande et lait): quel avenir face aux évolutions des marchés et de la PAC ?

    OpenAIRE

    Chatellier, Vincent

    2010-01-01

    Cette communication propose une synthèse des principales évolutions économiques de la filière bovine. Elle présente, dans un premier temps, l’évolution de la production, de la consommation et des échanges de viande bovine aux échelles internationales, communautaires et françaises. Dans une même logique, elle s’intéresse ensuite au secteur laitier. Dans une dernière partie, une réflexion est proposée quant aux évolutions pressenties de la PAC pour ces deux productions agricoles....

  7. 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 ...

  8. Application of real-time RT-PCR quantification to evaluate differential expres sion of Arabidopsis Aux/IAAgenes

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The molecular techniques including Northern blot, dot blot, in situ hybridization, etc. have been success fully used to estimate semi-quantitatively mRNA levels in plant samples. In this study, we employed a real-time reverse transcription-PCR (RT-PCR) assay using SYBR Green Ifluorescence methodology to evaluate accurate quant itation and sequence specific detection of Aux/IAA mRNA levels in Arabidopsis. Results obtained indicate a linear dynamic range of 102-106 Aux/IAA mRNA copies with standard de viations of generally less than 15%. As a model experiment,the outcome of analysis of expression patterns of five Aux/IAA genes in Arabidopsis under various chemical and temperature treatments is presented. The method presented here provides a sensitive and rapid technique to evaluate plant Aux/IAA mRNA expression levels in nanogram order.

  9. Élaboration de couches minces de carbone par ablation laser femtoseconde pour application aux biomatériaux implantables

    Science.gov (United States)

    Loir, A.-S.; Garrelie, F.; Donnet, C.; Subtil, J.-L.; Belin, M.; Forest, B.; Rogemond, F.; Laporte, P.

    2005-06-01

    Des films de tetrahedral amorphous-Carbon (ta-C) ont été déposés, sous vide poussé, par ablation d'une cible de graphite avec un laser Ti : saphir (durée d'impulsion 170 fs, fréquence de répétition 1 kHz, énergie maximale par impulsion 1,5 mJ, longueur d'onde 800 nm) sur substrats standard et sur biomatériaux (acier AISI 316L, polyéthylène à très haut poids moléculaire). Les propriétés de ces couches (structure, propriétés nanomécaniques et tribologiques) ont été caractérisées, en fonction des conditions d'élaboration, en examinant l'intérêt de l'utilisation d'un laser femtoseconde et leur capacité à satisfaire aux exigences spécifiques du domaine biomédical. Les propriétés d'adhérence des films ont été considérablement améliorées lors du dépôt sur des substrats en acier inoxydable préalablement préparés par décapage ionique in situ sous atmosphère d'argon. La surface hémisphérique d'une tête fémorale, en acier inoxydable, de prothèse de hanche de diamètre 22,2 mm a été revêtue d'un film de DLC adhérent et homogène en épaisseur. La résistance à l'usure de ce revêtement sera quantifiée à l'aide d'un simulateur de marche durant un million de cycles (correspondant à une année d'activité physique d'un être humain).

  10. 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...

  11. 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 ...

  12. 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...

  13. 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 ...

  14. 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.

  15. 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

  16. 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)

  17. 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.

  18. 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).

  19. 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 ...

  20. 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...

  1. 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...

  2. 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...

  3. 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)

  4. 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

  5. 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.

  6. 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.

  7. 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.

  8. [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.

  9. 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.

  10. 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.

  11. 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...

  12. 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...

  13. Modélisation du transfert de masse et d'énergie en aquifère: des approches numériques aux applications

    OpenAIRE

    Goblet, Patrick

    2011-01-01

    My research topics deal essentially with development and application of simulation tools for water, mass and heat flow in aquifer structures. I try and give some elements to answer two very basic questions: what is inside a simulation tool, and what is it good for ? The main line of this report is twofold: - On the one hand, showing the perpetual and fruitful two-way exchange between the needs stemming from modeling a practical problem and the search for the best numerical techniques, in term...

  14. 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 ...

  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. 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...

  17. 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

  18. 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

  19. 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...

  20. 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.

  1. 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...

  2. 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.

  3. 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.

  4. 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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-04-19

    This is a multiyear experimental research program focused on improving relevant material properties of high-T{sub c} 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 YBa{sub 2}Cu{sub 3}O{sub x} (Y-123) coated conductors, sheathed (Bi,Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} (Bi-2223) tapes, and applications development.

  6. 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.

  7. La politique européenne d’aide à la mise aux normes de qualité

    Directory of Open Access Journals (Sweden)

    Vialatte Philippe

    2001-05-01

    Full Text Available La Commission européenne peut aider les pays en développement à financer des programmes de mise aux normes de qualité pour contribuer à la lutte contre la pauvreté, améliorer les conditions de vie des populations locales et leur permettre de bénéficier encore plus largement des opportunités offertes par le marché européen.

  8. 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

  9. 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)

  10. 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)

  11. Marching Choruses

    DEFF Research Database (Denmark)

    Lech, Marcel Lysgaard

    2009-01-01

      This article re-examines the evidence for choral marching in the Athenian theatre, which has fostered ideas on the dramatic choruses as military training for young men, ephebes. But the late lexicographical sources are not relating to the dramatic choruses of the fifth-century and are in consta...

  12. Substrate-dependent Aux cluster: A new insight into Aux/CeO2

    Science.gov (United States)

    Zhu, Kong-Jie; Yang, Yan-Ju; Lang, Jia-Jian; Teng, Bo-Tao; Wu, Feng-Min; Du, Shi-Yu; Wen, Xiao-Dong

    2016-11-01

    To theoretically study the structures of metal clusters on oxides is very important and becomes one of the most challenging works in computational heterogeneous catalysis since many factors affect their structures and lead to various possibilities. In this work, it is very interesting to find that the stable structures and stability evolution of Aux clusters on ceria are varied with different index surfaces of CeO2. The corresponding reasons in chemical, geometric and electronic properties are systematically explored. Aux (x = 1-4) clusters prefer to separately disperse at the O-O bridge sites on CeO2(100) due to the low coordination number of surface O; while aggregate due to the strong Au-Au attractions when x is larger than 4. Owing to the uniform distribution of O-O bridge sites on CeO2(111) and (100), the most stable configurations of Aux are 3D structures with bottom atoms more than top ones when x is larger than 4. However, 2D configurations of Aux/CeO2(110) (x < 10) are more stable than the corresponding 3D structures due to the particular O-O arrangement on CeO2(110). 3D Aux clusters across O-O-Y lines are suggested as the most stable configurations for Aux/CeO2(110) (x ≥ 10). The present work gives a detailed example for the theoretical study of metal clusters on oxide, and will shed light into the design for controllable synthesis of ceria-based catalysts with metal nanoparticles supported on CeO2.

  13. 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...

  14. 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...

  15. ECONOMIE Les marchés oléagineux de l’Europe dans le contexte international

    Directory of Open Access Journals (Sweden)

    Dronne Yves

    2001-05-01

    Full Text Available L’Union européenne est un acteur important du marché international des oléagineux. Ses besoins en protéines et en huiles végétales sont extrêmement élevés. Bien que, entre 1980 et 1994, cette zone ait sensiblement augmenté ses surfaces en oléagineux, elle reste un producteur mondial modeste et doit importer de pays tiers l’essentiel de ses besoins en graines, tourteaux et huiles. L’Amérique du Nord et celle du Sud constituent ses principaux fournisseurs, de même que certains pays asiatiques comme la Malaisie ou l’Indonésie, mais les échanges à l’intérieur de l’UE et avec les PECOS se sont nettement développés. Le faible taux de couverture de l’Europe, particulièrement en tourteaux, rend cette zone très vulnérable aux aléas du marché mondial et aux décisions qui peuvent être prises à l’étranger et tout particulièrement aux États-Unis. Alors que la mise en place de l’Agenda 2000, caractérisée par un net recul des surface dès la première année d’application, pose de nouveaux problèmes de compétitivité à ces cultures dans un contexte de faibles prix mondiaux, le maintien de cette filière demeure un bien collectif pour les différents acteurs : consommateurs, agriculteurs, transformateurs et citoyens.

  16. 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.

  17. Assistance et discipline, introduction aux articles

    Directory of Open Access Journals (Sweden)

    Jean-Claude Vimont

    2012-07-01

    Full Text Available Quand Michel Foucault publie Surveiller et punir en 1975, aux lendemains de trois années de mutineries dans l'univers carcéral, il ne se contente pas d'offrir une généalogie de la prison moderne, mais analyse les systèmes disciplinaires à l'oeuvre dans d'autres institutions. Les études que nous reproduisons dans cette rubrique incitent à une réflexion sur la dimension coercitive de certains dispositifs d'assistance et de soins. Non de manière statique, car les oeuvres, les institutions évolue...

  18. 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

  19. 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)

  20. 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.

  1. 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.

  2. 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.

  3. 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.

  4. Separation of radio-cesium using potassium cobalt ferrocyanides. Application to radioactive waste and sea water; Separation des radiocesium par le ferrocyanure de cobalt potassium application aux eaux residuaires et marines

    Energy Technology Data Exchange (ETDEWEB)

    Scheidhauer, J.; Vergnaud, G.; Flamant, A. [Commissariat a l' Energie Atomique, la Hague, 50 - Cherbourg (France). Section de protection contre les radiations

    1968-09-01

    This work concerns the separation of radiocesium using ion-exchange on the ferrocyanide of cobalt and potassium. The factors studied, and which could affect this separation are: the pH, the amount of ion-exchanger used, the rate of flow of the sample, the grain-size of the ion-exchanger, the selectivity. The operational technique used is described, as well as its particular application to sea-water. (authors) [French] L'etude porte sur la separation des radiocesium par echange d'ion sur du ferrocyanure de cobalt et de potassium. Les parametres etudies et pouvant influencer cette separation sont: le pH, la quantite d'echangeur d'ion utilise, la vitesse d'ecoulement de l'echantillon, la granulometrie de l'echangeur d'ion, la selectivite. La technique operatoire adoptee est decrite, ainsi que son application particuliere a l'eau de mer. (auteurs)

  5. 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...

  6. 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...

  7. 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.)

  8. 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)

  9. 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)

  10. 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)

  11. 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.

  12. 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.)

  13. 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.

  14. 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...

  15. 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.

  16. 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

  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. 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...

  19. 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...

  20. Contribution auxmarches d'amélioration des outils de conception collaborative

    OpenAIRE

    Mathelin, S.

    2006-01-01

    In the context of fierce competition, the automotive industry tries to find better ways to adapt its organisation to market constraints, in particular to integrate customers' needs and wishes. The question is how to integrate the customers' points of view, which essentially cross any of the numerous technical areas or functions, in an almost entirely digital design. Renault has chosen to create a new actor, the Customer Requirements Pilot CRP, who is responsible for following some requirement...

  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. Recent updates in NGDC water level processing system with application to the Great Tohoku event of March 11, 2011

    Science.gov (United States)

    Mungov, G.; Harris, E.; Dunbar, P. K.; Mccullough, H. L.

    2012-12-01

    The National Oceanic and Atmospheric Administration (NOAA) National Geophysical Data Center (NGDC) is responsible for archive of and access to non-real time data supporting tsunami forecast, research, mitigation, and education. High-resolution DART® tsunameter and coastal tide-gauge data are processed, analyzed and then used to improve model-based real-time forecasting, tsunami mitigation and education efforts.This includes tsunami event, impacts, post-event field surveys, as well as instrumental data from deep-ocean tsunameters and coastal tide gauges. This paper presents recent improvements in the post-event processing of the instrumental water level data at NGDC. Fundamentals of the US Deep-ocean Assessment and Reporting of Tsunami (DART®) system were established by NOAA Pacific Marine Environmental Laboratory (PMEL) in early 1980s. The DART® system became operational in 2002. Now NOAA's National Data Buoy Center (NDBC) manages field surveys, maintenance and distribution of real-time data to Tsunami Warning Centers (TWCs). NOAA Center for Tsunami Research (NCTR) at PMEL develops forecasting methods and supports trouble-shooting of the tsunameter network. NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) provides 1-minute data for selected coastal tide-gauge stations in real-time mode to the TWCs. High-resolution DART® tsunameter and coastal tide-gauge data processed by NGDC are analyzed and used to improve model-based real-time forecasting, tsunami mitigation and education efforts. At the moment, the DART® high-resolution data archive at NGDC includes more than 110 processed records from the Pacific and Atlantic Oceans and the Caribbean Seas from all deployments starting from 2002. NGDC recently started processing and archiving 1-minute data from 289 coastal tide-gauge stations. Based on the experience obtained in processing DART® and coastal tide-gauge data from the Great Tohoku event of March 11, 2011, new improvements in the

  4. The axion hunting; La chasse aux axions

    Energy Technology Data Exchange (ETDEWEB)

    Robillard, C. [Laboratoire Collisions, Agregats, Reactivite (CNRS / Universite Toulouse 3), 31 (France)

    2009-05-15

    The axion is a neutral, light and very weakly interacting particle that was imagined in the seventies to unify some aspects of the basic interactions. Another important feature of axions is their capacity to transform themselves into photons when crossing a magnetic field, the probability of this conversion is very low, proportional to the intensity of the magnetic field and all the less low as the mass of the axion is tiny. Axions are perfect candidates to dark matter and could also explain why the solar corona is so hot. The magnetic fields inside the sun are so intense that they could enable axions to mutate into photons leading to an excess of energy and light in the out layers of the sun. Till now, no experiment has led to the detection of axions despite the announcement made in march 2006 of their discovery by an Italian team, these experimental results were unanimously acknowledged as biased. The ADMX program (Axion Dark Matter eXperiment) launched in the nineties, has led to constrains on the mass of the axions: the 1.9 - 3.3 eV range for the mass has been experimentally barred. Other experiments like CAST (CERN Axion Solar Telescope) have led to complementary constrains on the mass or to new constrains on the axion-photon coupling. (A.C.)

  5. 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.

  6. 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 ...

  7. 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.

  8. 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)

  9. 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

  10. 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).

  11. 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

  12. 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...

  13. 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...

  14. 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.

  15. 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.

  16. 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...

  17. 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

  18. 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.

  19. Caractérisation rhéologique et modélisation structurelle des systèmes argile-polymère. Application aux fluides de forage Rheometry and Structural Modelling of Clay-Polymer Systems. Application to Drilling Fluids

    Directory of Open Access Journals (Sweden)

    Cartalos U.

    2006-12-01

    Full Text Available Le comportement rhéologique des systèmes argile-polymère couramment utilisés dans les formulations des fluides de forage est examiné dans cet article. Un protocole d'essai adapté à leur nature thixotrope qui permet d'effectuer des mesures reproductibles est mis au point. Les propriétés intrinsèques du matériau sont ainsi déterminées sur toute la gamme de sollicitations : du comportement solide aux faibles déformations au comportement fluide aux taux de déformations intenses. Il est montré que ces systèmes sont caractérisés par des temps de restructuration longs, par des rhéogrammes en régime permanent présentant un minimum de contrainte et par des dépassements importants de la contrainte lors des essais transitoires. Ces effets peuvent être complètement masqués par des procédures d'essai préconisés par les normes en vigueur dans le forage. Une loi de comportement structurelle récente qui relie les propriétés thixotropes et viscoélastiques du matériau aux mécanismes de création et de rupture des flocs peut reproduire l'ensemble des phénomènes observés. Sa capacité de décrire le changement de structure au sein du fluide sous écoulement ou au repos et les variations associées de la contrainte permet d'envisager une meilleure modélisation de l'hydraulique du forage. The rheological behaviour of clay-polymer systems that are currently used in the formulation of drilling fluids was studied. A specific experimental procedure was used to account for thixotropic effects and obtain, thus, reproducible results. In this way it was possible to determine intrinsic properties in the whole range, from solid behaviour below the yield stress to liquid behaviour at very high shear. These systems are shown to be characterised by very long time scales of structure recovery, by the existence of a minimum shear stress in the steady state flow curve and by important stress overshoots in transient flows. These effects can be

  20. 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.

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

    OpenAIRE

    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 usin...

  2. 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.

  3. 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...

  4. 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...

  5. 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 ...

  6. 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...

  7. 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

  8. OVER- EXPRESSION OF AN AUX1 HOMOLOG TRIGGERS OVARY INITIATION IN VITRO OF POPULUS TOMENTOSA CARR.

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    PtAUX1, an ortholog of Arabidopsis AtAUX1 ( encoding auxin influx carrier protein), has been cloned from Populus tomentosa. PtAUX1 protein is similar to Arabidopsis AtAUX1 in structure, but PtAUX1 contains an additional cAMP/cGMP - dependent protein kinase phosphorylation site. Its overexpression lines driven by 35S promoter exhibits a novel phenotype related flower development which has not been revealed in AtAUX1 mutants. Ovary - like structures each with 1 ~ 2 styles, but without a cup - like disc and a bract, can initial from regenerated transgenic bud in cluster,resembling an inflorescence. The histological dissections illuminate that the ovary - like structures have womb and transmitting tissue inner its styles, but no ovules. PtAUX1 expression pattern are ubiquitous and various in different organs,which is coincident with its candidate auxin influx, functioning in distributing auxin thorough a plant body. These results suggest that PtAUX1 or polar auxin transport has a substantial function in floral organ initiation.

  9. 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)

  10. 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

  11. 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...

  12. Feticismo e desiderio in Poulet aux prunes di Marjane Satrapi

    Directory of Open Access Journals (Sweden)

    Stefania Rimini

    2013-05-01

    Full Text Available Il saggio si propone di individuare e descrivere le sfumature erotiche e sentimentali del film Poulet aux prunes di Marjane Satrapi, felice adattamento dell’omonima graphic novel. Il racconto procede per scarti, ellissi, anticipazioni e flasback, dando luogo a una narrazione labirintica dalla singolare trama arabescante. Le sottili dinamiche seduttive messe in campo dal complesso stile di regia di Satrapi-Paronnaud vengono analizzate alla luce delle categorie feticistiche individuate da Massimo Fusillo, che offrono interessanti modelli di interazione fra desiderio e creatività. L’esito di tale indagine consente di ampliare il dibattito relativo al rapporto di scambio e interferenza fra oggetti, pulsioni e sguardi nel cinema contemporaneo.

  13. 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 ...

  14. 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...

  15. 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

  16. Marching to Different Drummers.

    Science.gov (United States)

    Sneiderman, Laurie Dunivant

    2000-01-01

    Examines the low participation rate of black students in college/university marching bands. Suggests that reasons include cultural differences in music preferences, discrimination at auditions, active recruitment of talented black musicians by historically black colleges, limited music scholarships, and the decline of music education in the public…

  17. 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.

  18. Monthly report, March 1969

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1969-04-18

    This document is the March 1969 monthly report for Hanford Categories C-57 and C-65. It contains information on reactor plant operation, fuel and target fabrication, technical activities, and irradation services at the Hanford Production and Irradiation reactors. The document features a discussion of the 300 area environmental control program.

  19. OsAUX1 controls lateral root initiation in rice (Oryza sativa L.).

    Science.gov (United States)

    Zhao, Heming; Ma, Tengfei; Wang, Xin; Deng, Yingtian; Ma, Haoli; Zhang, Rongsheng; Zhao, Jie

    2015-11-01

    Polar auxin transport, mediated by influx and efflux transporters, controls many aspects of plant growth and development. The auxin influx carriers in Arabidopsis have been shown to control lateral root development and gravitropism, but little is known about these proteins in rice. This paper reports on the functional characterization of OsAUX1. Three OsAUX1 T-DNA insertion mutants and RNAi knockdown transgenic plants reduced lateral root initiation compared with wild-type (WT) plants. OsAUX1 overexpression plants exhibited increased lateral root initiation and OsAUX1 was highly expressed in lateral roots and lateral root primordia. Similarly, the auxin reporter, DR5-GUS, was expressed at lower levels in osaux1 than in the WT plants, which indicated that the auxin levels in the mutant roots had decreased. Exogenous 1-naphthylacetic acid (NAA) treatment rescued the defective phenotype in osaux1-1 plants, whereas indole-3-acetic acid (IAA) and 2,4-D could not, which suggested that OsAUX1 was a putative auxin influx carrier. The transcript levels of several auxin signalling genes and cell cycle genes significantly declined in osaux1, hinting that the regulatory role of OsAUX1 may be mediated by auxin signalling and cell cycle genes. Overall, our results indicated that OsAUX1 was involved in polar auxin transport and functioned to control auxin-mediated lateral root initiation in rice.

  20. 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

  1. 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,...

  2. Caractérisation de l'effet de la vitesse du courant sur la croissance d'une population algale et évaluation du décrochement et de la biomasse en dérive. Application aux algues et macrophytes du canal de Gignac (34) : Mise en place de protocoles.

    OpenAIRE

    Suaire, M.

    2008-01-01

    / Les canaux d'irrigation, correspondant à des cours d'eau artificiels canalisés, sont utilisés pour répondre à des besoins multiples tels que l'irrigation des cultures, l'apport en eaux jusqu'aux stations de potabilisation etc. La gestion de ces canaux est fortement perturbée par des proliférations d'algues et plantes aquatiques, notamment durant la période estivale de mai à août. Le canal de Gignac, situé dans l'Hérault n'est pas épargné par ce phénomène d'accumulation d'algues qui conduit ...

  3. 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...

  4. 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.

  5. 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...

  6. 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

  7. 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.

  8. 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

  9. 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

  10. 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 ...

  11. 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&...

  12. Programme of Seminars January to March 2004

    CERN Multimedia

    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. MANAGEMENT & COMMUNICATION Nathalie Dumeaux tel. 78144 management.communication@cern.ch Situation : 20.01.2004 DatesDaysPlaces Available** Bilingual seminars Communication Techniques-1/Techniques de communication-1 16, 17, 18 March 3 non Project Management/Gestion de projet 17, 18, 19 March 3 oui Seminars in English Communicating effectively 22, 23 January & 19, 20 February 4 yes Performance Appraisal MAPS 4, 5, 6 February 3 yes Performance Appraisal -MAPS 11, 12, 13 February 3 yes Séminaires en Français Formation à l'entreti...

  13. 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.)

  14. 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)

  15. 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.

  16. 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

  17. 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

  18. 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)

  19. 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)

  20. 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.

  1. 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

  2. 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.)

  3. 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.

  4. March 2013: Medicare Advantage update.

    Science.gov (United States)

    Sayavong, Sarah; Kemper, Leah; Barker, Abigail; McBride, Timothy

    2013-09-01

    Key Data Findings. (1) From March 2012 to March 2013, rural enrollment in Medicare Advantage (MA) and other prepaid plans increased by over 200,000 enrollees, to more than 1.9 million. (2) Preferred provider organization (PPO) plan enrollment increased to nearly one million enrollees, accounting for more than 51% of the rural MA market (up from 48% in March 2012). (3) Health maintenance organization (HMO) enrollment continued to grow in 2013, with over 31% of the rural MA market, while private fee-for-service (PFFS) plan enrollment decreased to less than 10% of market share. (4) Despite recent changes to MA payment, rural MA enrollment continues to increase.

  5. 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

  6. 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

  7. 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).

  8. 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).

  9. 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.

  10. The carrier AUXIN RESISTANT (AUX1) dominates auxin flux into Arabidopsis protoplasts.

    Science.gov (United States)

    Rutschow, Heidi L; Baskin, Tobias I; Kramer, Eric M

    2014-11-01

    The ability of the plant hormone auxin to enter a cell is critical to auxin transport and signaling. Auxin can cross the cell membrane by diffusion or via auxin-specific influx carriers. There is little knowledge of the magnitudes of these fluxes in plants. Radiolabeled auxin uptake was measured in protoplasts isolated from roots of Arabidopsis thaliana. This was done for the wild-type, under treatments with additional unlabeled auxin to saturate the influx carriers, and for the influx carrier mutant auxin resistant 1 (aux1). We also used flow cytometry to quantify the relative abundance of cells expressing AUX1-YFP in the assayed population. At pH 5.7, the majority of auxin influx into protoplasts - 75% - was mediated by the influx carrier AUX1. An additional 20% was mediated by other saturable carriers. The diffusive influx of auxin was essentially negligible at pH 5.7. The influx of auxin mediated by AUX1, expressed as a membrane permeability, was 1.5 ± 0.3 μm s(-1) . This value is comparable in magnitude to estimates of efflux permeability. Thus, auxin-transporting tissues can sustain relatively high auxin efflux and yet not become depleted of auxin.

  11. Oligomerization of SCFTIR1 Is Essential for Aux/IAA Degradation and Auxin Signaling in Arabidopsis.

    Science.gov (United States)

    Dezfulian, Mohammad H; Jalili, Espanta; Roberto, Don Karl A; Moss, Britney L; Khoo, Kerry; Nemhauser, Jennifer L; Crosby, William L

    2016-09-01

    The phytohormone auxin is a key regulator of plant growth and development. Molecular studies in Arabidopsis have shown that auxin perception and signaling is mediated via TIR1/AFB-Aux/IAA co-receptors that assemble as part of the SCFTIR1/AFB E3 ubiquitin-ligase complex and direct the auxin-regulated degradation of Aux/IAA transcriptional repressors. Despite the importance of auxin signaling, little is known about the functional regulation of the TIR1/AFB receptor family. Here we show that TIR1 can oligomerize in planta via a set of spatially clustered amino acid residues. While none of the residues identified reside in the interaction interface of the TIR1-Aux/IAA degron, they nonetheless regulate the binding of TIR1 to Aux/IAA substrate proteins and their subsequent degradation in vivo as an essential aspect of auxin signaling. We propose oligomerization of TIR1 as a novel regulatory mechanism in the regulation of auxin-mediated plant patterning and development. PMID:27618443

  12. Oligomerization of SCFTIR1 Is Essential for Aux/IAA Degradation and Auxin Signaling in Arabidopsis.

    Science.gov (United States)

    Dezfulian, Mohammad H; Jalili, Espanta; Roberto, Don Karl A; Moss, Britney L; Khoo, Kerry; Nemhauser, Jennifer L; Crosby, William L

    2016-09-01

    The phytohormone auxin is a key regulator of plant growth and development. Molecular studies in Arabidopsis have shown that auxin perception and signaling is mediated via TIR1/AFB-Aux/IAA co-receptors that assemble as part of the SCFTIR1/AFB E3 ubiquitin-ligase complex and direct the auxin-regulated degradation of Aux/IAA transcriptional repressors. Despite the importance of auxin signaling, little is known about the functional regulation of the TIR1/AFB receptor family. Here we show that TIR1 can oligomerize in planta via a set of spatially clustered amino acid residues. While none of the residues identified reside in the interaction interface of the TIR1-Aux/IAA degron, they nonetheless regulate the binding of TIR1 to Aux/IAA substrate proteins and their subsequent degradation in vivo as an essential aspect of auxin signaling. We propose oligomerization of TIR1 as a novel regulatory mechanism in the regulation of auxin-mediated plant patterning and development.

  13. 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.

  14. 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)

  15. 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.)

  16. 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

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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...

  2. 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-...

  3. 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)

  4. 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.

  5. Les références aux documents en ligne dans les textes scientifiques

    Directory of Open Access Journals (Sweden)

    Marc Couture

    2010-01-01

    Full Text Available [Français] Avec le développement de la diffusion en ligne de documents scientifiques, la primauté reconnue traditionnellement à l’imprimé devient de moins en moins pertinente ; les références à des ressources et documents en ligne forment ainsi une proportion significative des références dans certaines revues scientifiques, notamment celles qui, comme la RITPU, s’intéressent à l’information et à la communication. Dans cet article, on passe d’abord en revue les divers rôles des références répertoriés dans la littérature. On décrit ensuite les caractéristiques et les conditions permettant aux documents en ligne de jouer pleinement ces rôles. On montre enfin comment, dans l’adaptation française des normes de l’APA adoptée par la RITPU, certains choix touchant le format des notices des documents en ligne facilitent la tâche des évaluateurs et des lecteurs des articles. Par la même occasion, les auteurs y trouveront conseils et consignes visant à rendre plus pertinente et efficace cette dimension souvent négligée de la communication scientifique. [English] With the increase of online scientific publications, the traditional primacy of print documents has become less and less relevant. In some scientific journals, notably in the field of information technology and its applications (like IJTHE, a significant part of the citations now refer to online documents. This paper first reviews the various roles played by citations in scientific texts according to the literature. It then describes the characteristics and conditions which must be met if citations to online documents are to fully play these roles. Finally, it shows how, in the French-language adaptation of the APA reference formats which was adopted by IJTHE, a few choices have been made regarding online references in order to ease the task of both referees and readers. By the same token, authors will find guidelines and suggestions which should improve

  6. 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...

  7. 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.

  8. Eventos de Marzo (March Events).

    Science.gov (United States)

    Toro, Leonor

    Designed for teachers, this booklet, written in Spanish, contains information on seven March events: La Ley Jones; Pachin Marin; San Patricio; Primavera; Luis Pales Matos; La Masacre de Ponce; and La Esclavitud. The first section provides an overview of the Ley Jones, which introduced the bill of rights and made American citizenship obligatory for…

  9. 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.

  10. 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.

  11. 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.)

  12. 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.

  13. 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...

  14. Introduction to neural networks; Introduction aux reseaux de neurones

    Energy Technology Data Exchange (ETDEWEB)

    Pavlopoulos, P. [European Organization for Nuclear Research, Geneva (Switzerland)

    1996-08-01

    This lecture is a presentation of today`s research in neural computation. Neural computation is inspired by knowledge from neuro-science. It draws its methods in large degree from statistical physics and its potential applications lie mainly in computer science and engineering. Neural networks models are algorithms for cognitive tasks, such as learning and optimization, which are based on concepts derived from research into the nature of the brain. The lecture first gives an historical presentation of neural networks development and interest in performing complex tasks. Then, an exhaustive overview of data management and networks computation methods is given: the supervised learning and the associative memory problem, the capacity of networks, the Perceptron networks, the functional link networks, the Madaline (Multiple Adalines) networks, the back-propagation networks, the reduced coulomb energy (RCE) networks, the unsupervised learning and the competitive learning and vector quantization. An example of application in high energy physics is given with the trigger systems and track recognition system (track parametrization, event selection and particle identification) developed for the CPLEAR experiment detectors from the LEAR at CERN. (J.S.). 56 refs., 20 figs., 1 tab., 1 appendix.

  15. 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...

  16. 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...

  17. TIR1/AFB-Aux/IAA auxin perception mediates rapid cell wall acidification and growth of Arabidopsis hypocotyls

    Science.gov (United States)

    Fendrych, Matyáš; Leung, Jeffrey; Friml, Jiří

    2016-01-01

    Despite being composed of immobile cells, plants reorient along directional stimuli. The hormone auxin is redistributed in stimulated organs leading to differential growth and bending. Auxin application triggers rapid cell wall acidification and elongation of aerial organs of plants, but the molecular players mediating these effects are still controversial. Here we use genetically-encoded pH and auxin signaling sensors, pharmacological and genetic manipulations available for Arabidopsis etiolated hypocotyls to clarify how auxin is perceived and the downstream growth executed. We show that auxin-induced acidification occurs by local activation of H+-ATPases, which in the context of gravity response is restricted to the lower organ side. This auxin-stimulated acidification and growth require TIR1/AFB-Aux/IAA nuclear auxin perception. In addition, auxin-induced gene transcription and specifically SAUR proteins are crucial downstream mediators of this growth. Our study provides strong experimental support for the acid growth theory and clarified the contribution of the upstream auxin perception mechanisms. DOI: http://dx.doi.org/10.7554/eLife.19048.001 PMID:27627746

  18. 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.

  19. 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.

  20. Natural gas monthly, March 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This issue of the Natural Gas Monthly contains estimates for March 1999 for many natural gas data series at the national level. Estimates of national natural gas prices are available through December 1998 for most series. Highlights of the data contained in this issue are listed below. Preliminary data indicate that the national average wellhead price for 1998 declined to 16% from the previous year ($1.96 compared to $2.32 per thousand cubic feet). At the end of March, the end of the 1998--1999 heating season, the level of working gas in underground natural gas storage facilities is estimated to be 1,354 billion cubic feet, 169 billion cubic feet higher than at the end of March 1998. Gas consumption during the first 3 months of 1999 is estimated to have been 179 billion cubic feet higher than in the same period in 1998. Most of this increase (133 billion cubic feet) occurred in the residential sector due to the cooler temperatures in January and February compared to the same months last year. According to the National Weather Service, heating degree days in January 1999 were 15% greater than the previous year while February recorded a 5% increase.

  1. 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.

  2. 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.

  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. 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.

  5. 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...

  6. 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

  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. 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)

  9. DES ACCENTS ÉTRANGERS AUX ABORDS DE L’UTOPIE BROSSARDIENNE

    Directory of Open Access Journals (Sweden)

    Ghislaine Boulanger

    2011-12-01

    Full Text Available Cet article analyse l’analogie entre une langue sexiste et une langue étrangère, et démontre comment cette comparaison met en jeu des dimensions identitaires qui seront progressivement refoulées aux frontières de l’utopie féministe imaginée par Nicole Brossard. Cette étude met en relief certains problèmes d’exclusion reliés à la disparition symbolique de l’accent, tels que l’effacement de l’identité juive dans le roman Picture theory.

  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. 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...

  12. 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...

  13. 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.  

  14. 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

  15. 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)....

  16. 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.)

  17. 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

  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. 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. 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.

  1. 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

  2. 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...

  3. 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...

  4. 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...

  5. 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...

  6. 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...

  7. 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...

  8. SIG et évaluation des risques naturels: application aux risques sismiques de Quito

    Directory of Open Access Journals (Sweden)

    Jean-Luc CHATELAIN

    1995-09-01

    Full Text Available L'article retrace rapidement les principales étapes de la réalisation d'un scénario sismique sur la ville de Quito. Les croisements nécessaires entre les données provenant de domaines variés (sciences de la Terre, ingénierie civile, et sociodémographie ont pu être effectués rapidement grâce à l'utilisation du SIG SAVANE. Le SIG a permis l'édition de documents graphiques décrivant de façon concrète la vulnérabilité sismique de la ville, facilitant ainsi la prise de conscience des responsables politiques et économiques.

  9. 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...

  10. 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.

  11. 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)

  12. 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...

  13. 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.

  14. 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...

  15. 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)

  16. 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.)

  17. Management & Communication: Programme of Seminars January to March 2004

    CERN Multimedia

    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. MANAGEMENT & COMMUNICATION Nathalie Dumeaux tel. 78144 management.communication@cern.ch Situation : 20.01.2004 DatesDaysPlaces Available** Bilingual seminars Communication Techniques-1/Techniques de communication-1 16, 17, 18 March 3 non Project Management/Gestion de projet 17, 18, 19 March 3 oui Seminars in English Communicating effectively 22, 23 January & 19, 20 February 4 yes Performance Appraisal MAPS 4, 5, 6 February 3 yes Performance Appraisal -MAPS 11, 12, 13 February 3 yes Séminaires en Français Formation à l'entreti...

  18. 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 ...

  19. 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 ...

  20. 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.

  1. 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...

  2. L’expertise médico-légale face aux perversions : instrument ou argument de la justice ? The Medico-Legal Expert on Perversion: Instrument or Argument?

    Directory of Open Access Journals (Sweden)

    Gilles Trimaille

    2011-03-01

    Full Text Available L’expertise médico-légale n’est pas une création du XIXe siècle mais l’application du Code pénal napoléonien de 1810 va profondément modifier la place des experts dans le débat judiciaire. Face à certains comportements étranges, les juges seront amenés à solliciter de plus en plus fréquemment les experts psychiatres afin de déterminer le niveau de responsabilité imputable aux auteurs de crimes ou délits. Dans le domaine spécifique des infractions sexuelles, il reviendra aux psychiatres de déterminer la limite entre la perversité et la perversion, le partage entre la sanction et le soin. Malgré un souci croissant de scientificité présent dans les études médicales consacrées aux perversions sexuelles, les experts psychiatres du XIXe siècle n’arriveront pas toujours à se déprendre des valeurs politiques et morales dominantes de leur temps.Medico-legal expertise was not a creation of the 19th century but application of the Napoleonic Criminal Code of 1810 profoundly changed the role of experts in judicial proceedings. Faced with certain strange behaviors, judges were increasingly led to solicit psychiatric experts so as to determine the level of responsibility attributable to those accused of crimes or misdemeanors. In the specific domain of sexual offenses, it fell to psychiatrists to determine the border between perversity and perversion, and the distinction between sanction and care.  In spite of growing concern with the scientific character of medical studies devoted to sexual perversions, psychiatric experts of the 19th century did not always succeed in separating themselves from the dominant political and moral values of their times.

  3. 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...

  4. 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...

  5. 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...

  6. 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...

  7. 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...

  8. Des furoncles résistants aux antibiotiques: penser à la myiase !!

    Science.gov (United States)

    Ajili, Faida; Abid, Rim; Bousseta, Najeh; Mrabet, Ali; Karoui, Ghazi; Louzir, Bassem; Battikh, Riadh; Othmani, Salah

    2013-01-01

    Les myiases sont des infections parasitaires par des larves de mouches. La localisation cutanée doit être évoquée de retour d'un pays tropical devant une évolution inhabituelle de lésions cutanées. Nous rapportons une observation d'un militaire tunisien, ayant séjourné en République Démocratique du Congo. Il était atteint de myiase cutanée simulatrice d'une furonculose résistante aux antibiotiques. L'intérêt de cette observation est de souligner l'importance d’évoquer la myiase dont le traitement est simple et rapide chez un patient de retour de zone d'endémie. PMID:24106569

  9. 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...

  10. 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.

  11. 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...

  12. 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

  13. 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...

  14. 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 ...

  15. 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...

  16. 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...

  17. 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 ...

  18. Fiscal year 1985 Department of Energy authorization. Volume I. Hearing before the Subcommittee on Energy Research and Production and the Subcommittee on Energy Development and Applications, US House of Representatives, Ninety-Eighth Congress, Second Session, March 13, 1984

    Energy Technology Data Exchange (ETDEWEB)

    1984-01-01

    Volume I of the hearing record covers the March 13, 1984 testimony of Martha Hesse, Assistant DOE Secretary for Management and Administration, on the fiscal year 1985 budget request for DOE administration. Ms. Hesse discussed specific budget justifications, including funding for the Technical Information Services, in-house energy management, and policy initiatives, such as the realignment of some functions within the department, the introduction of an integrated accouting and personnel and payroll systems, and other efforts to reduce overhead costs. She reported a three percent drop in staffing level. Following a prepared statement by Ms. Hesse and introductory remarks by committee members, the bulk of the hearing record contains responses to committee questions.

  19. 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...

  20. 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.

  1. 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.

  2. 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

  3. 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.

  4. 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

  5. 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

  6. 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.

  7. 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.

  8. 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...

  9. Skin Barrier Dysfunction and the Atopic March

    DEFF Research Database (Denmark)

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

    2015-01-01

    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....

  10. 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...

  11. 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 ...

  12. 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

  13. 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...

  14. 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.

  15. 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

  16. 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.

  17. Comparison of VITEK 2 YST Card and API 20C AUX system in identification of non- albicans Candida species

    Directory of Open Access Journals (Sweden)

    Süleyman Durmaz

    2012-03-01

    Full Text Available Objectives: In the present study, it was aimed to compare results obtained by using VITEK 2 YST Card (bioMérieux, France with those obtained by using API 20C AUX (bioMérieux, France for identification of non- albicans Candida species, which was isolated from various clinical samples, at level of species.Materials and methods: Forty-one non-albicans Candida isolates, which were isolated from 28 urine, 10 blood and 3 vaginal swab specimens, and found to be negative by germ tube test, were identified by using VITEK 2 YST Card (bioMérieux, France. In addition, microscopic morphology was assessed in corn-meal Tween 80 agar, while carbohydrate assimilation was assessed by using commercially available API 20C AUX kit (bioMérieux, France.Results: Thirty-four isolates (82.9% were identified as identical species by these 2 systems, while different results were obtained in 7 isolates (17.1%. 5 isolates, identified as Candida glabrata by API 20C AUX system, were identified as Candida tropicalis (n=2, Candida krusei, Candida lipolitica and Candida kefyr by VITEK 2 YST Card. One other isolate, identified as C.tropicalis, was identified as Candida parapsilosis; and additional one isolate, identified as C.parapsilosis, was identified as C.tropicalis.Conclusion: It was concluded that one should be cautious in the identification of C.glabrata, in particular, C.tropicalis and C.parapsilosis, although between VITEK 2 YST Card and API 20C AUX system results was found largely similarity in identification of non-albicans Candida spp.

  18. The tomato Aux/IAA transcription factor IAA9 is involved in fruit development and leaf morphogenesis.

    Science.gov (United States)

    Wang, Hua; Jones, Brian; Li, Zhengguo; Frasse, Pierre; Delalande, Corinne; Regad, Farid; Chaabouni, Salma; Latché, Alain; Pech, Jean-Claude; Bouzayen, Mondher

    2005-10-01

    Auxin/indole-3-acetic acid (Aux/IAA) proteins are transcriptional regulators that mediate many aspects of plant responses to auxin. While functions of most Aux/IAAs have been defined mainly by gain-of-function mutant alleles in Arabidopsis thaliana, phenotypes associated with loss-of-function mutations have been scarce and subtle. We report here that the downregulation of IAA9, a tomato (Solanum lycopersicum) gene from a distinct subfamily of Aux/IAA genes, results in a pleiotropic phenotype, consistent with its ubiquitous expression pattern. IAA9-inhibited lines have simple leaves instead of wild-type compound leaves, and fruit development is triggered before fertilization, giving rise to parthenocarpy. This indicates that IAA9 is a key mediator of leaf morphogenesis and fruit set. In addition, antisense plants displayed auxin-related growth alterations, including enhanced hypocotyl/stem elongation, increased leaf vascularization, and reduced apical dominance. Auxin dose-response assays revealed that IAA9 downregulated lines were hypersensitive to auxin, although the only early auxin-responsive gene that was found to be upregulated in the antisense lines was IAA3. The activity of the IAA3 promoter was stimulated in the IAA9 antisense genetic background, indicating that IAA9 acts in planta as a transcriptional repressor of auxin signaling. While no mutation in any member of subfamily IV has been reported to date, the phenotypes associated with the downregulation of IAA9 reveal distinct and novel roles for members of the Aux/IAA gene family. PMID:16126837

  19. SIDARI : un système intelligent distribué appliqué aux réseaux informatiques

    OpenAIRE

    Oumtanaga, S.

    1996-01-01

    Cet article présente le projet SIDARI, un système intelligent distribué appliqué aux réseaux informatiques. Après avoir exposé les besoins et les contraintes en formation des réseaux informatiques, nous proposons une solution issue des techniques de l'intelligence artificielle, de l'approche orientée objets, et des tuteurs intelligents. (Résumé d'auteur)

  20. 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.

  1. 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.

  2. 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

  3. Proposition d'attribution de deux contrats pour la fourniture de fils supraconducteurs destines aux aimants de correction du LHC

    CERN Document Server

    1999-01-01

    Le présent document concerne l'attribution de deux contrats pour la fourniture de fils supraconducteurs émaillés de quatre types différents (fil 1, fil 2, fil 3 et fil 4) destinés aux aimants de correction du LHC. Un appel d'offres (IT-2649/LHC/LHC) a été adressé le 13 juillet 1999 à quatre entreprises dans quatre Etats membres, trois entreprises au Japon et trois entreprises aux Etats-Unis. A la date de clôture, le CERN avait reçu cinq offres. Il est demandé au Comité des finances d'approuver la négociation de deux contrats: 1. d'une part avec IGC (USA) pour la fourniture de fils supraconducteurs 1 et 2 destinés aux aimants de correction du LHC pour un prix total net de 996 074 dollars des Etats-Unis, non révisable, avec une option pour la fourniture de fils 1 et 2 supplémentaires représentant 20% de la quantité initiale pour un prix total net de 199 215 dollars des Etats-Unis, révisable, ce qui porte le montant total à 1 195 289 dollars US, révisable pour l'option. Au taux de change in...

  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. 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.

  6. 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

  7. 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.

  8. MANAGEMENT BOARD MEETING OF 28 MARCH 2002

    CERN Document Server

    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...

  9. 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/

  10. Marché des catalyseurs d'hydrogénation The Market for Hydrogenation Catalysts

    Directory of Open Access Journals (Sweden)

    Mace J. M.

    2006-11-01

    Full Text Available L'institut Français du Pétrole (IFP ayant acquis une grande expérience dans le domaine des catalyseurs d'hydrogénation, en particulier dans l'utilisation du nickel soluble et des catalyseurs bimétalliques à base de palladium, une étude a été effectuée pour évaluer le marché potentiel des catalyseurs d'hydrogénation intervenant dans la synthèse de quelques grands intermédiaires pétrochimiques : le cyclohexane, la cyclohexanone, les alcools oxo, le butanediol, le sorbitol, le toluylène diamine, l'hexaméthylène diamine, l'eau oxygénée et l'acide téréphtalique. Ce marché atteint pour les produits considérés 63 M$ pour 3500 t/an de catalyseurs commercialisés et représente globalement 7 % de celui des catalyseurs utilisés en pétrochimie. Les débouchés les plus importants sont ceux des catalyseurs nécessaires pour la production de toluylène diamine (14,4×10·6 $, d'hexaméthylène diamine (11,5×10·6 $ et d'eau oxygénée (11,5×10·6 $. Ces hydrogénations sont effectuées pour l'essentiel en présence de 3 métaux: le nickel, 2300 t/an, le cuivre, 680 t/an et le palladium, 560 t/an. Le nickel continue d'être utilisé en majeure partie sous forme de nickel de Raney. Le nickel soluble de I'IFP, bien qu'étant plus sensible au soufre et à l'eau, devrait pouvoir trouver des applications pour l'hydrogénation d'autres composés possédant des doubles liaisons aromatiques. Les catalyseurs au palladium s'imposent lorsque l'on recherche une sélectivité dans l'hydrogénation d'une fonction sans toucher à une autre fonction. L'exemple type est, dans la préparation de l'eau oxygénée, celui de l'hydrogénation des fonctions quinone sans toucher aux liaisons aromatiques. On the basis of the great experience gained by Institut Français du Pétrole (IFP in the field of hydrogenation catalysts, especially in using soluble nickel and bimetallic palladium-base catalysts, a survey was made to assess the potential market for

  11. 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.

  12. 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.

  13. 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 ...

  14. Contribution aux Methodes Analytiques des Substances a L'aide de Faisceaux de Particules Chargees

    Science.gov (United States)

    Saidi, Abdelmajid

    Nous avons vu les possibilites d'analyse par particules chargees des aerosols recueillis sur des filtres de type MILLIPORE. La meme technique a ete utilisee pour des filtres ayant servi a la filtration de l'eau du fleuve Saint-laurent. Deux techniques ont ete utilisees: (1) FAST (Forward Alpha Scattering Technique): pour analyser l'hydrogene, le carbone, l'oxygene et puis l'azote. Des alpha de 12 MeV ont ete utilises. (2) PIXE (Particle Induced X-ray Emission): pour analyser les elements moyens et lourds, dans ce cas des protons de 3 MeV ainsi que des ions d'argon de 1 et 1.6 MeV ont ete utilises. Les etudes ont montre que sous vide, la majorite des problemes proviennent des dommages causes par l'echauffement du a l'impact du faisceau sur le filtre. L'analyse quantitative par l'intermediaire du faisceau extrait peut presenter des difficultes en ce qui concerne les elements legers pour lesquels l'absorption des rayonnements caracteristiques dans l'atmosphere externe est importante. Les ions lourds se pretent mal aux analyses des aerosols du fait de leur limite de sensibilite. L'analyse directe de liquides par des protons est particulierement interessante puisqu'elle ne necessite aucune preparation prealable des echantillons. A cet effet, un programme de calcul de concentration des elements dans la solution a analyser a ete mis au point. Nous avons determine la limite de sensibilite de la methode PIXE pour les cibles minces (filtre) et pour le cas ou la matrice est de l'eau. Enfin, la technique FAST peut etre un complement de la technique PIXE.

  15. 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

  16. 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.

  17. 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.

  18. 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

  19. 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.

  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. 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.

  2. 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)

  3. 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.

  4. Irradiation Processing Department monthly report, March 1961

    Energy Technology Data Exchange (ETDEWEB)

    1961-04-14

    This document details activities of the irradiation processing department during the month of March, 1961. 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; Employee Relations Operation; Financial Operation; and NPR project.

  5. 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.)

  6. 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...

  7. 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...

  8. 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 ...

  9. 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...

  10. Interactions entre les bacteries et les algues dans une culture continue de phytoplancton naturel soumise aux conditions exterieures

    OpenAIRE

    Gauthier, M; Martin, Y; Lelong, P; Breittmayer, V

    1984-01-01

    Au cours d'une expérience de culture continue de phytoplancton marin en grand volume soumise aux conditions extérieures, des tests microbiologiques et biochimiques ont été effectués pour mettre en évidence la production de substances antibactériennes et antialgales par les algues unicellulaires. De nombreux paramètres ont été mesurés pour caractériser la croissance de ces algues (qualitativement et quantitativement) et des bassin expérimental et dans la biomasse à différents stades de la cult...

  11. Mobilisations urbaines et espaces de résistance aux Jeux Olympiques de Londres et de Vancouver

    OpenAIRE

    Nativel, Corinne

    2012-01-01

    En juillet 2012, Londres accueillera les Jeux Olympiques et Paralympiques d’été. Partant du constat que l’organisation et la tenue de grands évènements sportifs suscitent d’importantes controverses et que les mouvements d’opposition aux JO restent encore méconnus, cet article propose d’identifier et d’analyser les mobilisations et espaces de résistance dans la capitale britannique. Il présente quelques éléments théoriques ainsi que la genèse et les principaux marqueurs contextuels des JO lond...

  12. 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

  13. 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

  14. Les règles de mélange appliquées aux équations d'état Mixing Rules Applied to Equations of State

    Directory of Open Access Journals (Sweden)

    Lermite C.

    2006-11-01

    Full Text Available Sous haute pression, les propriétés thermodynamiques et les équilibres de phase sont généralement évalués en appliquant la même équation d'état aux phases en présence. Les règles de mélange déterminent la variation des paramètres avec la composition. L'extension de ces méthodes à des systèmes polaires exige une révision de ces règles. Une seconde difficulté se présente si on applique une équation d'état contenant plus de deux paramètres. Les relations existant entre les grandeurs d'excès et les règles de mélange apportent une solution aux problèmes ainsi définis. Les exemples proposés portent sur la prédiction des équilibres de phase de systèmes ternaires, l'application du concept de contributions de groupes et l'utilisation d'une équation d'état contenant quatre paramètres. Under high pressure, thermodynamic properties and phase equilibria are generally evaluated by applying the same equation of state to the phases present. Mixing rules determine how parameters vary with the composition. The extension of such methods to polar systems requires these rules to be revised. A second difficulty arises if an equation of state containing more than two parameters is used. The relations existing between excess functions and mixing rules provide a solution to the problems thus defined. The examples proposed concern the predicting of phase equilibria for ternary systems, the application of the concept of group contributions and the use of an equation of state containing four parameters.

  15. The Atopic March. A Literature Review

    Directory of Open Access Journals (Sweden)

    Juan F. Salazar-Espinosa

    2015-10-01

    Full Text Available The atopic march is defined as the progression of atopic diseases, generally during childhood, such as atopic dermatitis, asthma, allergic rhinitis and food allergies. The main risk factors for developing these atopic diseases include genetics, aeroallergens, food allergens, late food introduction to the infant, and living in developing countries. The immunologic contributors to this problem include the Th2 response, epigenetics, and lack of certain factors like thymic stromal lymphopoietin (TSLP and filaggrin. As a whole, the therapeutic approach has been changing during recent years because of the discovery of new factors involved in this problem. This article explains the definition of atopic march, the immunological pathway, clinical features, epidemiology and therapeutic approaches to create a context for the broader understanding of this important condition.

  16. 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

  17. 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.

  18. 20 March 2015 solar eclipse influence on sporadic E layer

    Science.gov (United States)

    Pezzopane, M.; Pietrella, M.; Pignalberi, A.; Tozzi, R.

    2015-11-01

    This paper shows how the solar eclipse occurred on 20 March 2015 influenced the sporadic E (Es) layer as recorded by the Advanced Ionospheric Sounder by Istituto Nazionale di Geofisica e Vulcanologia (AIS-INGV) ionosondes installed at Rome (41.8°N, 12.5°E) and Gibilmanna (37.9°N, 14.0°E), Italy. In these locations, the solar eclipse was only partial, with the maximum area of the solar disk obscured by the Moon equal to ∼54% at Rome and ∼45% at Gibilmanna. Nevertheless, it is shown that the strong thermal gradients that usually accompany a solar eclipse, have significantly influenced the Es phenomenology. Specifically, the solar eclipse did not affect the Es layer in terms of its maximum intensity, which is comparable with that of the previous and next day, but rather in terms of its persistence. In fact, both at Rome and Gibilmanna, contrary to what typically happens in March, the Es layer around the solar eclipse time is always present. On the other hand, this persistence is also confirmed by the application of the height-time-intensity (HTI) technique. A detailed analysis of isoheight ionogram plots suggests that traveling ionospheric disturbances (TIDs) likely caused by gravity wave (GW) propagation have played a significant role in causing the persistence of the Es layer.

  19. 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…

  20. 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....

  1. 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

  2. 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...

  3. 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...

  4. 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...

  5. 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...

  6. 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...

  7. A highly scalable massively parallel fast marching method for the Eikonal equation

    CERN Document Server

    Yang, Jianming

    2015-01-01

    In this study, we present a highly scalable massively parallel implementation of the fast marching method using a domain decomposition approach. Central to this algorithm is a novel restarted narrow band approach that coordinates the frequency of communications and the amount of computations extra to a sequential run for achieving an unprecedented parallel performance. Within each restart, the narrow band fast marching method is executed; simple synchronous local exchanges and global reductions are adopted for communicating updated data in the overlapping regions between neighboring subdomains and getting the latest front status, respectively. The independence of front characteristics is exploited through special data structures and augmented status tags to extract the masked parallelism within the fast marching method. The efficiency, flexibility, and applicability of the parallel algorithm are demonstrated through several examples. These problems are extensively tested on grids with up to 1 billion points u...

  8. PULMONARY VESSEL EXTRACTION BASED ON COHERENCE DIFFUSION AND FAST MARCHING

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    Objective To accurately extract pulmonary vessels on medical images. Methods An efficient vessel segmentation framework is presented, which includes a smoothing method and a extraction algorithm. The smoothing method is based on an improved coherence diffusion approach that integrates the second-order directional differential information. It can analyze weak edges such as narrow peak or ridge-like structures. Meanwhile, an improved extraction algorithm is proposed. It is based on a fast marching algorithm where a sorted sequence array and multi-initialization technique are applied. Results The improved coherence diffusion approach can precisely preserve important oriented patterns and remove noises on the images. Experimental results on several images show that the proposed method can effectively find the location of pulmonary vessels. Conclusion The segmentation method is accurate and fast that can be a useful tool for medical imaging applications.

  9. 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.

  10. 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...

  11. Information architecture project presentation to CIC leaders, March 10 1995

    Energy Technology Data Exchange (ETDEWEB)

    Lane, T.A. [ed.

    1995-09-01

    On March 10, 1995, members of the Laboratory`s Information Architecture (IA) project presented an overview of progress-to-date to Group and Program Leaders and Deputies in the Computing, Information, and Communications (CIC) division. The presentation included progress reports from each of the seven IA teams: desktop, applications, data warehouse, data, infrastructure, financial analysis, metrics, and review. The fundamental purpose was to familiarize the CIC leaders with the IA project and to open a dialog on how CIC and the IA could better work with each other. On April 5, 1995, the IA project held an open forum in the Physics Auditorium that reused many of the viewgraphs from the presentation to CIC leaders.

  12. A fast marching algorithm for the factored eikonal equation

    Science.gov (United States)

    Treister, Eran; Haber, Eldad

    2016-11-01

    The eikonal equation is instrumental in many applications in several fields ranging from computer vision to geoscience. This equation can be efficiently solved using the iterative Fast Sweeping (FS) methods and the direct Fast Marching (FM) methods. However, when used for a point source, the original eikonal equation is known to yield inaccurate numerical solutions, because of a singularity at the source. In this case, the factored eikonal equation is often preferred, and is known to yield a more accurate numerical solution. One application that requires the solution of the eikonal equation for point sources is travel time tomography. This inverse problem may be formulated using the eikonal equation as a forward problem. While this problem has been solved using FS in the past, the more recent choice for applying it involves FM methods because of the efficiency in which sensitivities can be obtained using them. However, while several FS methods are available for solving the factored equation, the FM method is available only for the original eikonal equation. In this paper we develop a Fast Marching algorithm for the factored eikonal equation, using both first and second order finite-difference schemes. Our algorithm follows the same lines as the original FM algorithm and requires the same computational effort. In addition, we show how to obtain sensitivities using this FM method and apply travel time tomography, formulated as an inverse factored eikonal equation. Numerical results in two and three dimensions show that our algorithm solves the factored eikonal equation efficiently, and demonstrate the achieved accuracy for computing the travel time. We also demonstrate a recovery of a 2D and 3D heterogeneous medium by travel time tomography using the eikonal equation for forward modeling and inversion by Gauss-Newton.

  13. marches environnementales volontaires, conflit d’usage et proximité

    Directory of Open Access Journals (Sweden)

    Marie-Claude Bélis-Bergouignan

    2010-11-01

    Full Text Available L’article propose une analyse en termes de proximité géographique et organisée de la contribution des Démarches Environnementales Volontaires (DEV à la résolution du conflit d’usage diffus sur l’eau dans la viticulture et l’arboriculture fruitière. Dans une première partie, les DEV seront présentées comme une réponse spécifique des producteurs à ce type de conflit, la seconde partie se concentrant sur une lecture des DEV en termes de proximité. Une enquête réalisée auprès des producteurs inscrits en agriculture raisonnée ou biologique permet de montrer que la proximité organisée ne peut être porteuse à elle seule de solutions aux divergences d’intérêts entre acteurs.This paper analyses, terms of geographical and organized proximity, the contribution of Voluntary Environmental Approaches (VEA to the resolution of diffuse conflicting water uses in vine growing and fruit-bearing arboriculture. In a first part, we show that VEAs are a specific producer’s response to this kind of conflicts, the second part being centred on an analysis of VEAs in terms of proximity. An investigation towards producers engaged in integrated or organic farming shows that organized proximity alone is not able to bear solutions to divergences of interests between actors.

  14. 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)

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

    Energy Technology Data Exchange (ETDEWEB)

    Unterzuber, R.; Milnes, R.D.; Marinkovich, B.A.; Kubancsek, G.M.

    1982-09-01

    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).

  16. 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.

  17. Wave spectra, meteorological, and other data from FIXED PLATFORMS in support of the Santa Barbara Channel project from 13 March 1984 (NODC Accession 8500085)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wave spectra, meteorological, and other data were collected from FIXED PLATFORMS from 13 March 1984. Data were collected by the Science Applications, Inc. - Raleigh...

  18. Une méthode de production de truites fario destinées aux repeuplements de restauration

    Directory of Open Access Journals (Sweden)

    MAISSE G.

    1981-01-01

    Full Text Available Une méthode de production de populations de truites fario présentant une forte variabilité génétique est proposée pour les repeuplements de restauration. Du sperme de géniteurs sauvage est conservé à des températures voisines de 0° C et à l'obscurité, pendant la durée du transport entre le cours d'eau d'origine et la pisciculture, où l'on procède à l'insémination d'ovules de truites fario d'élevage en utilisant le dilueur de sperme 532. La descendance est destinée de préférence aux déversements au stade oeuf dans le milieu préalablement restauré.

  19. 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...

  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. 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...

  3. 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 ...

  4. Dépouillement de l'essai aux barres de Hopkinson par une technique de calcul inverse

    OpenAIRE

    Gary, G.; Zhao, H

    1994-01-01

    Le dépouillement classique des essais aux barres d'Hopkinson ne permet pas la mesure directe d'une relation précise "contrainte-déformation" à vitesse de déformation constante en raison du non équilibre des forces et de la variation importante de vitesse de déformation au cours de l'essai, en particulier dans la zone des faibles déformations. Nous proposons ici une méthode de dépouillement basée sur une technique du calcul inverse permettant de passer outre ces limitations, et d'améliorer ain...

  5. 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...

  6. Décentraliser la gestion de réseaux grâce aux agents mobiles

    OpenAIRE

    Galtier, Virginie

    1998-01-01

    Stage de DEA. Rapport de stage.; Dans un contexte où les réseaux informatiques et de télécommunications prennent une importance toujours plus critique, la gestion de réseaux devient une activité cruciale. Mais les systèmes inspirés du modèle centralisé de l'OSI et largement utilisés s'adaptent mal aux nouvelles caractéristiques des réseaux actuels (de plus en plus évolutifs). Utiliser les agents mobiles pour décentraliser cette gestion permettrait de gagner en efficacité en distribuant la tâc...

  7. 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.

  8. 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...

  9. 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

  10. The auxin transporter, OsAUX1, is involved in primary root and root hair elongation and in Cd stress responses in rice (Oryza sativa L.).

    Science.gov (United States)

    Yu, ChenLiang; Sun, ChenDong; Shen, Chenjia; Wang, Suikang; Liu, Fang; Liu, Yan; Chen, YunLong; Li, Chuanyou; Qian, Qian; Aryal, Bibek; Geisler, Markus; Jiang, De An; Qi, YanHua

    2015-09-01

    Auxin and cadmium (Cd) stress play critical roles during root development. There are only a few reports on the mechanisms by which Cd stress influences auxin homeostasis and affects primary root (PR) and lateral root (LR) development, and almost nothing is known about how auxin and Cd interfere with root hair (RH) development. Here, we characterize rice osaux1 mutants that have a longer PR and shorter RHs in hydroponic culture, and that are more sensitive to Cd stress compared to wild-type (Dongjin). OsAUX1 expression in root hair cells is different from that of its paralogous gene, AtAUX1, which is expressed in non-hair cells. However, OsAUX1, like AtAUX1, localizes at the plasma membrane and appears to function as an auxin tranporter. Decreased auxin distribution and contents in the osaux1 mutant result in reduction of OsCyCB1;1 expression and shortened PRs, LRs and RHs under Cd stress, but may be rescued by treatment with the membrane-permeable auxin 1-naphthalene acetic acid. Treatment with the auxin transport inhibitors 1-naphthoxyacetic acid and N-1-naphthylphthalamic acid increased the Cd sensitivity of WT rice. Cd contents in the osaux1 mutant were not altered, but reactive oxygen species-mediated damage was enhanced, further increasing the sensitivity of the osaux1 mutant to Cd stress. Taken together, our results indicate that OsAUX1 plays an important role in root development and in responses to Cd stress.

  11. Modelisation du comportement mecanique de la peau humaine in vivo : application au vieillissement et aux gestes du clinicien.

    OpenAIRE

    Boyer, Gaëtan

    2010-01-01

    The knowledge of the mechanical properties of human skin in vivo is essential for many domains (medical, clinical…). The aim of this thesis is to develop new devices for the clinician in order to perform objective assessment of the mechanical properties of human skin, and also to improve the understanding of the whole mechanical behaviour of this organ with ageing.The first chapter is a bibliography concerning the physiology and the physical properties of the skin and also an overview of the ...

  12. 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...

  13. 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...

  14. 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...

  15. 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...

  16. 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.

  17. Conception optimale de structures cinématiques tridimensionnelles. Application aux mécanismes de transmission en rotation

    OpenAIRE

    FAUROUX, Jean-Christophe

    1999-01-01

    This work is about creation of preliminary design tools. They should be able to build admissible solutions from given specifications for initiating the design process (sketching and approximate dimensioning of part shapes).In this connection, a design method is presented. It is particularly suitable for the class of rotative movement transmission mechanisms, with a linear structure, one degree of mobility and a constant ratio. The CASYMIR software (Conception Assistée de Systèmes Mécaniques d...

  18. 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...

  19. Aider le mainteneur d'applications libres à répondre aux rapports d'erreur

    OpenAIRE

    Guo, Lisong

    2014-01-01

    When a failure occurs in the Linux kernel, the kernel emits an error report called “kernel oops”, summarizing the execution context of the failure. Kernel oopses describe real Linux errors, and thus can help prioritize debugging efforts and motivate the design of tools to improve the reliability of Linux code. Nevertheless, the information is only meaningful if it is representative and can be interpreted correctly. In this thesis, we study a collection of kernel oopses over a period of 8 mont...

  20. 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 (...

  1. 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...

  2. 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.

  3. 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.

  4. 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.

  5. 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

  6. 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)

  7. 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.

  8. 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)

  9. 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).

  10. 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)

  11. 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 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

  12. Du sport aux activités physiques de loisir : des formes culturelles et sociales bigarrées

    Directory of Open Access Journals (Sweden)

    Éric Dugas

    2007-07-01

    Full Text Available L'espace ludique des formes sociales des pratiques physiques accepte maintes variations. Du jeu informel et libre aux activités physiques institutionnelles (les sports, plusieurs catégories de situations motrices, distinctes des unes des autres, jalonnent l'espace des jeux sportifs. Après avoir défini et délimité, dans un premier temps, les contours et la richesse de l'univers des pratiques physiques ludiques, nous essayons, dans un second temps de mettre au jour le type de pratiques qui coïncident le mieux aux aspirations des pratiquants du xxie siècle. On s'aperçoit actuellement que malgré l'hégémonie du sport au sein de l'espace médiatique et économique, il se dessine néanmoins une tendance forte : la prédominance d’activités physiques ludiques de plus en plus autocontrôlées qui laissent l'initiative aux pratiquants et dans lesquelles les institutions sportives ne sont plus totalement ou pas du tout maître du jeu.From sport to leisure physical activities: mixed cultural and social formsThe game space of physical activities' social forms accepts many variations. From informal and free games to institutional physical activities (sports, several motor situation categories, distinct from each other, punctuate the space of physical games. After having specified and delimited the contours and richness of the world of playful physical activities, we will try to bring to light the kind of practices which coincide best with the 21st century's players or sports (women. Currently, we can see that in spite of sport's hegemony within the media and the economic spheres, a strong tendency is becoming apparent: the predominance of more and more self-controlled playful physical activities, which leave the initiative to players and in which governing bodies are not totally or not at all in command any more.Del deporte a las actividades de ocio: una mezcolanza en las formas culturales y socialesEl espacio lúdico de las formas sociales de

  13. 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

  14. 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

  15. 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...

  16. 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).

  17. The French Tsunami warning center for the Mediterranean and North-East Atlantic (CENtre d'ALerte aux Tsunamis, CENALT)

    Science.gov (United States)

    Schindelé, F.; Bossu, R.; Alabrune, N.; Arnoul, P.; Duperray, P.; Gailler, A.; Guilbert, J.; Hébert, H.; Hernandez, B.; Loevenbruck, A.; Roudil, P.

    2012-04-01

    The CENALT (CENtre d'Alerte aux Tsunamis) is responsible for the French NTWC (National Tsunami Warning Center). This center was established through a project that was requested by the French Ministry of Interior and the Ministry of Sustainable Development. It is implemented by the Commissariat à l'énergie atomique et aux énergies alternatives (CEA), the French Hydrographic and Oceanographic Service (SHOM) and the Centre National de la Recherche Scientifique (CNRS), and is based in Bruyères-le-Châtel (30 km from Paris). This center is based on three main components: seismic network data, sea level network data, dissemination system and processing and analyzing softwares and is operating on a 24/7 basis. The CENALT has established scientific cooperation with 8 institutions and implemented and funded private leased lines to exchange data with institutions from 5 different European countries (Germany, Italy, Portugal, Spain, Tunisia). The seismic data are processed with the Seiscomp 3 software. SHOM is working on making all French tide-gauge stations operated and available in real-time in 2012, and they installed 5 new tide gage stations. The tide gage data will be processed with a customized version of the Guitar (Gempa) software allowing the detection of tsunami signals, complemented by other softwares developed by the CEA. Historical tsunami databases (sources and observations) and earthquake databases, mostly based on available international databases, have been synthetized by CEA to produce information maps in real time, used to guide operators of permanence. Precomputed tsunami scenarios are implemented to build in real time maps of the highest tsunami impact expected in deep water. Along with an optimized tsunami modeling tool, these softwares help to define the areas where the tsunami may be observed and cause damage. The CENALT has been operating since early January 2012 as a pre-operational service and will be fully operational in July 2012. It is also

  18. 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...

  19. Focus – Un outil de simulation adapté à la gestion des ressources en eau du territoire dans le cadre d'une démarche participative

    Directory of Open Access Journals (Sweden)

    FABRE, Jacques ; BRUNEL, Laurent ; RUCHETON, Gabrielle ; MAILHOL, Jean-Claude ; RUELLE, Pierre ; LE GRUSSE, Philippe

    2013-05-01

    Full Text Available Le développement d’outils et de méthodes permettant des tester différents scénarios relatifs aux systèmes de culture peut être un élément clé dans les instances de concertation ou de négociation mises en place dans le cadre de la planification de ressource en eau à l’échelle de territoires. Focus sur Pilote-Ter et Olympe, deux logiciels développés respectivement par Irstea et l’Inra, dont l’articulation a permis de constituer un outil de simulation adapté à la gestion territorialisée des ressources en eau dans le cadre d’une démarche participative.

  20. 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...

  1. 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...

  2. 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...

  3. 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...

  4. 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...

  5. 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...

  6. 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...

  7. 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...

  8. 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.

  9. 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...

  10. 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...

  11. 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)

  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. 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...

  14. 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...

  15. 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...

  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. 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

  18. INAVEM : un parcours professionnel d’écoute et d’aide aux victimes / INAVEM: a professional way of listening to and helping victims of crime

    Directory of Open Access Journals (Sweden)

    Bellucci Sabrina

    2012-08-01

    Full Text Available It is only in the last 20 years that support for victims of crime has received attention. The French history of associations dedicated to victims of crime is based on INAVEM (Institut National d’Aide aux Victimes et de Médiation – National Institute for Victims of Crime and Mediation: indeed, an associative network and its federation devoted to a mission of general interest and public service, constitute a French specificity. In France, the enforcement of the public policy to help and support victims of crime relies on associations, the most of which joined the INAVEM. L’aide aux victimes a longtemps été méconnue, elle s’est construite progressivement et a connu un essor considérable au cours de ces vingt dernières années. L’histoire associative française au service de la cause des victimes se fonde sur l’INAVEM (Institut National d’Aide aux Victimes et de Médiation : en effet, un réseau associatif et sa fédération en charge d’une mission d’intérêt général, de service public, constitue une spécificité française. La mise en œuvre de la politique publique d’aide aux victimes repose en France sur des structures associatives, la plupart adhérentes à l’INAVEM.

  19. 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.

  20. Modernité, corps et transformation de soi: Les salons de coiffure aux îles Tonga (Polynésie occidentale)

    NARCIS (Netherlands)

    N. Besnier

    2013-01-01

    Aux îles Tonga, la fin des années 2000 fut marquée par une véritable explosion des salons de coiffure dans la petite capitale, Nuku’alofa. Ce phénomène reflète de nouvelles manières de concevoir le corps, par lesquelles les Tongiennes cherchent à se distancier de la vie traditionnelle sans néanmoins

  1. Mutation in domain II of IAA1 confers diverse auxin-related phenotypes and represses auxin-activated expression of Aux/IAA genes in steroid regulator-inducible system.

    Science.gov (United States)

    Park, Jin-Young; Kim, Hye-Joung; Kim, Jungmook

    2002-12-01

    Most of Aux/IAA genes are rapidly induced by auxin. The Aux/IAA proteins are short-lived nuclear proteins sharing the four conserved domains. Domain II is critical for rapid degradation of Aux/IAA proteins. Among these gene family members, IAA1 is one of the earliest auxin-inducible genes. We used a steroid hormone-inducible system to reveal putative roles and downstream signaling of IAA1 in auxin response. Arabidopsis transgenic plants were generated expressing fusion protein of IAA1 (IAA1-GR) or IAA1 with a mutation in domain II (iaa1-GR) and the glucocorticoid hormone-binding domain (GR). IAA1-GR transgenic plants did not exhibit any discernable phenotypic differences by DEX treatment that allows nuclear translocation of the fusion protein. In contrast, diverse auxin-related physiological processes including gravitropism and phototropism were impaired by DEX treatment in roots, hypocotyls, stems, and leaves in iaa1-GR transgenic plants. Auxin induction of seven Aux/IAA mRNAs including IAA1 itself was repressed by DEX treatment, suggesting that IAA1 functions in the nucleus by mediating auxin response and might act as a negative feedback regulator for the expression of Aux/IAA genes including IAA1 itself. Auxin induction of Aux/IAA genes in the presence of cycloheximide can be repressed by DEX treatment, showing that the repression of transcription of the Aux/IAAs by the iaa1 mutant protein is primary. Wild-type IAA1-GR could not suppress auxin induction of IAA1 and IAA2. These results indicate that inhibition of auxin-activated transcription of Aux/IAA genes by the iaa1 mutant protein might be responsible for alteration of various auxin responses.

  2. 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

  3. Flora Tristan: De la nécessité de faire bon accueil aux femmes étrangères

    Directory of Open Access Journals (Sweden)

    Martine Reid

    2014-10-01

    Full Text Available Dans son traité De la nécessité de faire bon accueil aux femmes étrangères (1835, Flora Tristan (1803-1844, l’écrivaine française qui adopte l’état psychologique d’une étrangère dans son propre pays, traite de la situation des femmes “étrangères” qui voyagent seules en France et/ou commencent une nouvelle vie dans le pays, en particulier à Paris. Politiquement engagée auprès des plus défavorisés à partir du socialisme, Tristan propose la création d’une association pour ces femmes. En assimilant les deux groupes d'"étrangères” (nationales et non nationales, car elle pense que le même type d’accueil doit être fourni à toutes, Tristan préconise l’aide à la voisine nécessiteuse, voisine qui est à la fois un sujet national ou un sujet en transit, une femme sans-papiers ou une réfugiée.

  4. 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.)

  5. 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.)

  6. 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

  7. 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...

  8. 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...

  9. Influência do auxílio mecânico na colheita de tomates Influence of the harvesting aid equipment in tomato harvest

    Directory of Open Access Journals (Sweden)

    Augusto C. Sanchez

    2006-12-01

    Full Text Available O objetivo deste trabalho foi avaliar parâmetros que influenciam na colheita auxiliada e comparar a colheita tradicionalmente realizada para tomate de mesa em propriedades agrícolas, no Estado de São Paulo. Para tanto, foi desenvolvido um dispositivo de auxílio à colheita, de estrutura metálica, dotado de rodas e com assentos acoplados para um ou dois colhedores, avaliado em quatro modalidades de colheita: testemunha (colheita-padrão utilizada na Fazenda Santa Luzia, Brotas-SP, colhedor a pé com auxílio, colhedor sentado com auxílio e composição dos dois sistemas, com dois colhedores sentados e um a pé, em diferentes velocidades de deslocamento. Os resultados demonstraram que os tipos de colheita com auxílio mecânico se apresentaram mais eficientes do que a testemunha em relação à produtividade horária média por colhedor. O sistema de colheita auxiliada com três colhedores apresentou aumento de 290% na produtividade média horária por colhedor, para a faixa de 0,5 a 1,0 fruto por planta, seguido dos sistemas de colheita auxiliada com colhedor a pé, com aumento de aproximadamente 41%, e colheita auxiliada com colhedor sentado, com aumento de aproximadamente 35%. Esses resultados comprovam a importância do uso do dispositivo de auxílio mecânico.Fresh tomato harvest is traditionally made without harvesting aids. The main goal of this research was to evaluate performance parameters of fresh tomato harvesting aid equipment and compare it to traditional harvest, in the state of São Paulo. Therefore, an equipment was developed and the harvest process was evaluated in four different ways: traditional system (harvest system used in Santa Luzia farm, Brotas, SP, Brazil, picker walking with a harvesting aid equipment, picker seated in a harvesting aid equipment and a composition of both systems: two pickers seated and one picker walking in two different velocities ranges. The different systems using harvesting aid showed an

  10. 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 ...

  11. 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)

  12. 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...

  13. Chemical Processing Department monthly report for March 1963

    Energy Technology Data Exchange (ETDEWEB)

    1963-04-22

    This report, from the Chemical Processing Department at HAPO for March 1963, discusses the following: Production operation; Purex and Redox operation; Finished products operation; maintenance; Financial operations; facilities engineering; research; employee relations; and weapons manufacturing operation.

  14. 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...

  15. 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.

  16. 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...

  17. 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.

  18. 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...

  19. 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.

  20. 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.

  1. Im/Ex in March Witnesses Recovery Signal

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    @@ China's import and export in March,2009 continued to be another month of decreasing trade.On April 10,GeneralAdministration of Customs of the People s Republic of China announced the profile of China foreign trade import and export in the first quarter of this year.According to the customs' statistics,the total import and export value for March amounted to US$162.02 billion,20.9% decreasing compared with the same period last year.

  2. The market of the activities bound to the wastes situation 2002-2003 and perspectives 2004; Le marche des activites liees aux dechets situation 2002-2003 et perspectives 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-12-01

    This study presents the different activities bound to the wastes, evaluates the economical stakes, the short-dated development perspectives, identifies the new markets and analyzes the regulations impact on the short-dated markets. It concerns the non hazardous and hazardous wastes. (A.L.B.)

  3. L’innovation et les marchés financiers aux États-Unis depuis les années 1970 : une approche contrastée Financial Innovation in the U.S.: Playing with the Markets?

    Directory of Open Access Journals (Sweden)

    Christine Zumello

    2009-10-01

    Full Text Available It seems particularly relevant to talk about financial innovation in the United States because this country can be considered as a major engine of innovation given the size of the financial markets and the wide variety of financial products available. Financial innovation is analysed through the lens of a genetic mutation which turns an existing financial product into a mutant under certain conditions [Merton Miller's 'seed beneath the snow']. The conditions which favour financial innovation as well as the role of regulation are considered in this paper. An insight into the potential negative market spin that can spring from financial innovation is also offered.

  4. Report on behalf of the Economic Affairs and Plan Commission on the law project relative to the energy markets; Rapport au nom de la commission des affaires economiques et du plan sur le projet de loi relatif aux marches energetiques

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-10-01

    In the framework of the directive no. 98/30 concerning the common rules for the natural gas internal market, the Senate debates on the law project relative to the energy markets no. 406, adopted by the Minister Council the 25 september 2002. This project transposes the directive content in french law. This document presents the amendments allowing the directive transposition. (A.L.B.)

  5. Le « marché aux putains » : économies sexuelles et dynamiques spatiales du Palais-Royal dans le Paris révolutionnaire

    OpenAIRE

    Plumauzille, Clyde

    2014-01-01

    Le Palais-Royal constitue le symbole de toute une mythologie urbaine du Paris galant, capitale du plaisir et du libertinage pour les élites européennes au XVIIIe siècle. Enclave économique et sexuelle, cet espace exemplaire d’une nouvelle géographie du divertissement sexuel dans les grandes métropoles européennes permet d’interroger la redéfinition des liens entre commerce et sexualité au tournant du siècle. À l’époque révolutionnaire, le déclin des grands bordels d’Ancien Régime, l’augmentat...

  6. Decree no. 2004-251 from March 19, 2004 relative to public utility obligations in the gas sector; Decret no. 2004-251 du 19 mars 2004 relatif aux obligations de service public dans le secteur du gaz

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-03-01

    This decree defines the public utility obligations that gas suppliers and gas facility operators (transportation and distribution networks, underground storage facilities, LNG facilities) have to fulfill in order to ensure without interruption the continuity of gas supplies to their clients. (J.S.)

  7. Les stratégies des investisseurs : des bords de ville aux bords de mer

    Directory of Open Access Journals (Sweden)

    Sophie Cueille

    2004-03-01

    Full Text Available L’architecture de la villégiature a un prix. Construire des villes nouvelles, qu’elles soient balnéaires, thermales ou périurbaines, induit la mise en place de réseaux ferroviaires et viaires, d’édifices dévolus à la détente, les soins ou les jeux, d’hôtels et de maisons. Quels sont les investisseurs qui engagent d’importants financements en ces lieux ? Personnages de la vie politique, industrielle et bancaire, le plus souvent parisiens, tous se saisissent des besoins de la nouvelle société bourgeoise montante, consommatrice de loisirs dès le milieu du XIXe siècle. Si certains projets peuvent être initialement teintés d’une certaine forme de philanthropie, toutes les opérations deviennent très vite de véritables entreprises lucratives. Sociétés civiles en tous genres, concessions et affermages, les formules d’investissement s’adaptent au produit où souvent se mêlent intérêts publics et privés. La réussite de tels projets suscite également le financement de campagnes publicitaires importantes : journaux, affiches et guides sont publiés pour faire accourir la clientèle visée et ainsi rapporter aux investisseurs les profits escomptés.

  8. Le projet Petits Films : du retour aux participants à la valorisation des données

    Directory of Open Access Journals (Sweden)

    Piccoli Vanessa

    2015-01-01

    Full Text Available En 2014, au sein du laboratoire ICAR (équipe InSitu / Cellule Corpus Complexe un projet appelé “Petits Films” a été conduit avec une double finalité : confectionner des petits films à partir de trois différents corpus et parallèlement mener une réflexion sur les modalités de réalisation, les finalités et les contraintes de ce type de réalisation. On considère que dans le domaine de l’analyse conversationnelle, dans lequel les chercheurs recourent de plus en plus à des corpus de données vidéo, la réalisation d’un petit film peut représenter non seulement un retour pour les participants, mais aussi un moyen de valorisation du corpus, d’un type d’approche en linguistique et plus largement de l’activité du laboratoire de recherche. Grâce à leur forme agréable et à leur courte durée, les petits films sont conçus pour la diffusion et la valorisation des méthodologies et des recherches, ils sont accessibles pour un large public, même de non-experts. Cependant, il est nécessaire de réfléchir aux questions juridiques et déontologiques que soulève cette opération.

  9. Aux Débuts de la syntaxe structural: Tesnière et la construction d’une syntaxe

    Directory of Open Access Journals (Sweden)

    Pierre Swiggers

    1994-12-01

    Full Text Available “…il est parfaitement possible de constituer une syntaxe sur des données purement syntaxiques et en dehors de toute morphologie. Certes, le système proposé (... est loin d'être parfait. Mais on ne saurait le taxer d'arbitraire, prétendre qu'il dépasse la réalité des données, et n'y voir qu'une vue personnelle et subjective de son auteur (... Pour être plus abstraits et plus difficiles à saisir que Jes faits morphologiques, Jes faits syntaxiques n'en ont pas moins une réalité objective. Et ceux qui voudront Jes étudier pour édifier la syntaxe qui nous manque encore peuvent être en tout cas assurés de construire sur un terrain solide" (Lucien Tesniere, "Comment construire une syntaxe''., p. 229. Le projet tesniérien d'une syntaxe structurale - aboutissant aux Élements de syntaxe structurale (1959, deuxieme ed. 1966, ouvrage posthume - a sa propre histoire. Une histoire qui la rattache d'ailleurs à un courant de pensee international, qui se manifeste dans l'reuvre de Bally,2 Jespersen,3 Sapir,4 Brunot,5 Brøndal 6 et Hjelmslev,7 et qui s'articule autour de la problématique des classes de mots. En fait, ce courant de pensée se présente en premier lieu comme une critique du système des parties du discours: celles-ci ne sont guère des composantes du discours, au sens où elles constitueraient les bases constructives du discours, mais elles sont en fait des parties du système de la langue. Il importe done de franchir le pas, à partir d'elles, vers l'organisation de la phrase.

  10. Le statut juridique en droit interne des espèces animales liées aux milieux aquatiques continentaux métropolitains

    Directory of Open Access Journals (Sweden)

    BENTATA V.

    1997-01-01

    Full Text Available La loi «Barnier» (n° 95-101 du 2 février 1995, relative au renforcement de la protection de l'Environnement, a introduit dans le code rural deux articles (L.211-3 et L.211-4 qui traitent de l'introduction d'espèces dans le milieu naturel. Ces nouveaux articles prennent place dans un cadre préexistant constitué par l'ensemble des régimes juridiques dont relèvent, en France, de très nombreuses espèces de la faune sauvage. Les introductions d'espèces étant un phénomène ancien, il est intéressant d'examiner la structure de ce dispositif et d'en profiter pour repérer à quelles places il avait, jusque-là, intégré des espèces qui, pour avoir été introduites en France avant la loi «Barnier», n'en étaient pas pour autant dénuées de statut juridique. A grands traits, on peut proposer de reconnaître quatre grandes catégories de listes d'espèces de faune sauvage : la faune protégée, les gibiers, les animaux de pêche, et enfin les espèces relevant de classifications agricoles. La faune protégée comprend non seulement ce qu'il est convenu d'appeler les «espèces protégées» (celles qui figurent sur des listes prises au titre des articles L.211-1 et L.211-2 du code rural, mais aussi d'autres espèces figurant sur des listes prises au titre de l'article L.212-1 de ce code (en particulier, celles des annexes de la convention de Washington et du règlement (CEE N° 3626/82 du conseil du 3 décembre 1982, modifié, relatif à son application dans la Communauté. Le gibier comprend notamment trois ensembles, qui s'emboîtent comme des poupées russes : le gibier au sens de la jurisprudence (le plus vaste, les espèces dont la chasse est autorisée, et enfin celles d'entre elles qui sont susceptibles d'être classées «nuisibles» par les préfets. A noter que ces deux derniers ensembles sont définis par la voie réglementaire. Les animaux de pêche, au sens large (qui regroupent des crustacés et des grenouilles avec les

  11. Electricity: hunting down line losses; Electricite: la chasse aux pertes en lignes est ouverte

    Energy Technology Data Exchange (ETDEWEB)

    Anon

    2008-07-01

    equivalent to 100 million tons. New technologies such as superconductivity may also contribute significant improvements eventually, albeit for limited applications. For now, VHV is clearly a mature solution capable of meeting two of our major challenges: maintaining interconnection stability in the European Union and reducing greenhouse gases in the power generation sector.

  12. Acquisition de donnees a haute resolution et faible latence dediee aux capteurs avioniques de position

    Science.gov (United States)

    Koubaa, Zied

    The communication network and the detection mechanisms are two critical systems in a plane. Their performance has a direct impact on aircrafts. This is of particular interest for avionics designers, who have increasingly invested more and more in the development of these elements. As a part of a project in this domain, we introduce the design and the development of a smart interface for position sensors dedicated to flights (Smart Sensor Interface - SSI). This interface will serve to connect sensors of different technologies (electromagnetic, optical and MEMS) to the new communication network, AFDX. The role of this interface is to generate an appropriate excitation signal for certain types of sensors (R/LVDT), and to treat, demodulate, and digitize their output signals. The proposed interface is thus composed of a Signal Acquisition Path (SAP) and an Excitation Signal Generation (ESG). By adopting the Integrated Modular Avionics architecture (IMA), we can minimize the size of the classic interface, reduce its energy consumption and improve its reliability and its performance. The focus of our design is particularly on the Data Acquisition Path (DAP). An Architecture characterized by a high resolution (14 bits) and a low latency (1.2 ms) of this module is introduced and developed in this prestigious work. This architecture was developed after a wellconducted study of existing solutions found in literature work and a detailed analysis of the problems arise in the design and implementation of this system (DAP). The conversion of the sensor signal into a digital signal is the most important step in acquiring data, as it sets the resolution of the acquired information and generates the majority of its latency. This module can also affect the reliability and stability of the system. Among different models and architectures, the Delta-Sigma analog-to-digital converter (ADC) is preferred for this application (for better resolution). This converter is formed by an analog

  13. 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

  14. Création d’applications mobiles via une application Java.

    OpenAIRE

    KAID SLIMANE, Imane; GHEMBAZA, Hayat

    2015-01-01

    Au cours de ce modeste travail, nous avions comme objectif principal de réaliser une application JAVA Desktop en respectant l'hiérarchie de l'approche IDM. La particularité de notre travail était dans la manière d’établir une liaison entre l'abstraction de l'ingénierie dirigé par les modèles et de la concrétisé en une application. L’objectif principal est le développement d’une application qui permet aux « utilisateurs ordinaires » de gé...

  15. North American Ocean Energy Status - March 2007

    Energy Technology Data Exchange (ETDEWEB)

    Bedard, Roger (Electric Power Research Institute (EPRI), Palo Alto, CA (USA)); Previsic, Mirko (re vision consulting, Sacramento, CA (USA)); Hagerman, George (Virginia Tech, Arlington, VA (USA)); Polagye, Brian (University of Washington, Seattle, WA (USA)); Musial, Walt (National Renewable Energy Laboratory (NREL) Boulder, CO (USA)); Justin Klure (Oregon Department of Energy, Salem, OR (USA)); Jouanne, Annette von (Oregon State Universities, Corvallis, OR (USA)); Mathur, Uday (Pacific Gas and Electric Company, San Francisco, CA (USA)); Collar, Craig (Snohomish Public Utility District, WA (USA)); Hopper, Charles (Nova Scotia Power Inc, NS, (CAN)); Amsden, Scott (Tacoma Power , Tacoma, WA (USA))

    2007-07-01

    Ocean energy resources are attractive renewable supply alternatives for North America because good wave, tidal and river energy resources are found in close proximity to population centers. The Electric Power Research Institute (EPRI) established two North American collaborative programs to demonstrate ocean energy conversion in North America. The two collaborative programs bring together the resources and knowledge of 10 State Agencies, 2 Federal Agencies, 17 Electric Power Utilities, 3 Universities and over 30 Technology Developers. This paper summarizes key findings of these collaborative programs and provides the current status of the North American wave, tidal in-stream and river in-stream programs. Ocean energy accomplishments in North America to date include: - The first two tidal in-stream demonstration plants began operation in late 2006 - Approximately 30 preliminary permits applications for tidal plants have been filed by private investors with the Federal Energy Regulatory Commission (FERC) - Nova Scotia Power has announced a multi million dollar tidal in-stream pilot demonstration plant - Approximetaly 10 preliminary permits applications for wave plants have been filed with FERC. - The first full license application for a wave plant was filed with FERC in November, 2006 - A river in-stream energy conversion feasibility study is underway.

  16. KURRI progress report 1998. April 1998 - March 1999

    International Nuclear Information System (INIS)

    The Kyoto University Reactor (KUR) was operated 1732 hours after the renewal of the control system. The 902 researchers (6701 man-days) visited the KURRI to make experimental studies. The scientific activities in the fiscal year of 1998 are summarized in this progress report. The total 195 research issues are categorized to the 10 topics as follows; (1) Slow Neutron Physics and Neutron Scattering includes 5 issues for the project research on magnetic confinement and spin quantum optical phenomena with long wavelength neutrons and the 25 issues as general researches. (2) Nuclear Physics and Nuclear Chemistry includes the 9 issues for the project research on nuclear and solid state physics by means of short lived radioisotopes and the 7 issues as general researches. (3) Reactor Physics and Reactor Engineering includes the 23 issues as general researches. (4) Material Science and radiation Effect includes the 13 issues for the project research on material irradiation effects under controlled irradiation fields and the 16 issues as general researches. (5) Geochemistry and Environmental Science includes the 2 issues for the project research on methodologies for measurement of ultra-trace transuranic elements in environmental samples and the 29 issues as general research. (6) Life Science and Medical Science includes the 4 issues for the project research on biological effects of intermediate energy neutrons of the Kur facility on the mammalian cells and the 17 issues as general researches. (7) Neutron Capture Theory includes the 22 issues as general researches. (8) Neutron Radiography and Radiation Application includes the 6 issues as general researches. (9) Waste and Tru Management includes the 7 issues for the project research on the management of Tru elements and the 2 issues as general research. (10) Health Physics includes the 5 issues as general researches. The attached documents are Organization, Research Division and Laboratories, Radiation Protection and

  17. 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.

  18. L’évolution de l’affirmative action aux États-Unis sous la présidence de George W. Bush Evolution of Affirmative Action in the United States during the Presidency of George W. Bush

    Directory of Open Access Journals (Sweden)

    Marie-Christine Pauwels

    2010-03-01

    Full Text Available L’offensive contre l’affirmative action engagée depuis les années 1980 s’est accrue pendant les deux mandats de la présidence Bush, et l’opinion publique s’est radicalisée, percevant désormais de plus en plus fréquemment ces programmes comme une série d’avantages indûment octroyés à un certain nombre de « privilégiés ». Tout programme d’affirmative action doit désormais être étayé par des disparity studies démontrant la réalité de la discrimination, et seules des mesures très ciblées (narrowly tailored sont autorisées pour y remédier. La charge de la preuve a été en quelque sorte inversée. Mais contrairement aux idées reçues, l’affirmative action n’est pas sur le point de disparaître aux États-Unis et malgré son hostilité de principe, le gouvernement Bush n’a pris aucune mesure concrète pour démanteler ces programmes. L’affirmative action connaît aujourd’hui plusieurs transformations majeures, l’évolution la plus marquante étant l’effacement du critère ethno-racial au profit de critères plus neutres et moins idéologiquement polarisants, essentiellement d’ordre géographique et territorial. Dans l’enseignement supérieur par exemple, des procédures d’admission codées ont vu le jour pour favoriser l’accès des minorités ethniques sous-représentées aux campus d’élite, et diverses stratégies de contournement ont été mises en place dans l’adjudication des marchés publics. Ces transformations sont également intéressantes à analyser d’un point de vue transnational, puisque l’on observe une convergence croissante avec le modèle français de discrimination positive, lui aussi fondé sur le camouflage et l’euphémisation de l’identité ethno-raciale et sur une logique de territoire.This article examines the fate of affirmative action in the United States during the eight years of the Bush administration. After a brief reminder of the major landmarks

  19. 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....

  20. Recueil des Etudes & Observations 2006 de l'Observatoire des non recours aux droits et services (Odenore)

    OpenAIRE

    Chauveaud, Catherine; Warin, Philippe

    2007-01-01

    Annual Report 2006 of the Unit for research on Non-take up of Social Benefits and Public ServicesThis Unit has been launched in March 2003 to develop a research program dedicated to the analysis of non-take-up in France and Europe.This annual report presents a collection of studies carried out in 2006 in the fields of the social and professional inclusion, health and refusal of benefits. Some studies are confidential and not published here.All studies are put on line on the website (http://Od...

  1. Faire du business au bas de la pyramide : la réalité des marches émergents

    Directory of Open Access Journals (Sweden)

    Reuben Abraham

    2012-01-01

    Full Text Available Le rôle du business a été traditionnellement ignoré dans les débats internationaux portant sur le développement économique et la lutte contre la pauvreté. Toutefois, le succès mondial récent du secteur de la téléphonie mobile et son essor rapide sur les marchés émergents au cours des deux dernières décennies ont imposé une remise en question. Au lieu de stratégies de développement descendantes, orientées sur l’aide, les débats portent à présent davantage sur la fourniture de biens et de services rentables à la base de la pyramide économique (BOP, comme le font les entreprises de téléphonie mobile. Des équipes de recherche du CEMS (Centre for Emerging Markets Solutions  ont découvert que, bien qu’il soit possible de desservir de façon rentable les marchés BOP, cela exige de s’écarter des stratégies préconisées dans les publications ordinaires sur la BOP. Cette approche oblige notamment à aborder des questions liées au climat macroéconomique et commercial du pays, aux erreurs d’appréciation du risque, à l’esprit d’entreprise. Elle implique également une réorientation, afin de s'éloigner des multinationales et de se rapprocher du secteur des petites entreprises, avec les coûts de transaction qui le minent. Ce document examine également quelques modèles d’entreprise durables qui ont fonctionné sur ces marchés et analyse quelques secteurs que les capitaux commerciaux trouveront extrêmement intéressants et dignes d’investissements. Enfin, nous étudierons comment structurer et exploiter les énormes opportunités commerciales générées par le traitement du manque d'organisation des marchés BOP, à l’aide d’une combinaison de modèles d’entreprise innovants (en particulier autour de structures à coût réduit, de recherche, d’esprit d’entreprise et de capitaux patients.

  2. A velocity map imaging study of gold-rare gas complexes: Au-Ar, Au-Kr, and Au-Xe

    Science.gov (United States)

    Hopkins, W. Scott; Woodham, Alex P.; Plowright, Richard J.; Wright, Timothy G.; Mackenzie, Stuart R.

    2010-06-01

    The ultraviolet photodissociation dynamics of the gold-rare gas atom van der Waals complexes (Au-RG, RG=Ar, Kr, and Xe) have been studied by velocity map imaging. Photofragmentation of Au-Ar and Au-Kr at several wavelengths permits extrapolation to zero of the total kinetic energy release (TKER) spectra as monitored in the Au(P23/2∘[5d106p]) fragment channel, facilitating the determination of ground state dissociation energies of D0″(Au-Ar)=149±13 cm-1 and D0″(Au-Kr)=240±19 cm-1, respectively. In the same spectral region, transitions to vibrational levels of an Ω'=1/2 state of the Au-Xe complex result in predissociation to the lower Au(P21/2∘[5d106p])+Xe(S10[5p6]) fragment channel for which TKER extrapolation yields a value of D0″(Au-Xe)=636±27 cm-1. Asymmetric line shapes for transitions to the v'=14 level of this state indicate coupling to the Au(P23/2∘[5d106p])+Xe(S10[5p6]) continuum, which allows us to refine this value to D0″(Au-Xe)=607±5 cm-1. The dissociation dynamics of this vibrational level have been studied at the level of individual isotopologues by fitting the observed excitation spectra to Fano profiles. These fits reveal a remarkable variation in the predissociation dynamics for different Au-Xe isotopologues. For Au-Ar and Au-Xe, the determined ground state dissociation energies are in good agreement with recent theoretical calculations; the agreement of the Au-Kr value with theory is less satisfactory.

  3. Validation d’un dispositif en ligne d’aide à la persévérance aux études postsecondaires

    Directory of Open Access Journals (Sweden)

    Alan Wright

    2009-01-01

    Full Text Available [Français] De plus en plus d’universités mettent en place des dispositifs de soutien à la persévérance aux études universitaires. Ce texte fait état du contexte de recherche justifiant la mise en ligne d’un dispositif d’aide à la persévérance aux études. SAMI-Persévérance signifie : système d’aide multimédia interactif à la persévérance aux études postsecondaires. Les difficultés éprouvées par les étudiants universitaires auxquelles SAMI-Persévérance répond, la méthodologie pour valider le dispositif auprès de 103 étudiants et les résultats sur les plans de la convivialité, de la pertinence et de l’utilité du dispositif également présentés. [English] An increasing number of universities are creating instruments to support student perseverance. This paper describes the context which leads to the creation of an online system supporting student perseverance. SAMI-Perseverance is an interactive, multi-media system supporting student perseverance in post-secondary education. The results of an instrument validation study undertaken with a sample of 103 individuals from the target population are presented. This article describes the nature of the student difficulties addressed, as well as the methodology used in the validation study. The study’s findings with regard to measures of userfriendliness, relevance, and usefulness of the instrument are described.

  4. Des pôles de croissance vers des systèmes d’innovation territorialisés dans une « nouvelle » économie de marche : le cas de Gdansk, Pologne

    OpenAIRE

    Maria Lorek

    2013-01-01

    Depuis la libéralisation économique, les pôles de croissance construits sous la tutelle de l’État ont connu des transformations institutionnelles et organisationnelles majeures dans les pays centralement planifiés. Les nouvelles formes d’organisation industrielle, qui sont à l’origine de ces transformations, donnent la priorité aux logiques territoriales. Les économies locales, sous-estimées pendant l’économie centralement planifiée, sont devenues des espaces prioritaires d’application de la ...

  5. Not Quite Under the Tuscan Sun… the Potential of Film Tourism in Marche Region

    Directory of Open Access Journals (Sweden)

    Sue Beeton

    2015-03-01

    Full Text Available The relationship between film and tourism is complex and at times often subtle – not all movies directly encourage tourism, but they can influence tourist images as well as provide additional aspects to the tourist experience. This conceptual paper considers the role that film can play to encourage and enhance tourism in the Marche Region of Italy. Based on theoretical knowledge developed to date, a process to develop film tourism product is proposed. Such a practical application of academic knowledge will also provide data with which to further develop theoretical models in the field.

  6. Some improvements of the marching cubes algorithm for the rendering of an orebody

    Institute of Scientific and Technical Information of China (English)

    LI Chun-min; LI Zhong-xue; WANG Yun-hai; HAO Xiu-qiang

    2008-01-01

    Orebody-rendering techniques are developed using the marching cubes (MC) algorithm. The shape of an orebody is vi- vidly displayed in real time and can be used to guide mining design as well. The MC algorithm has been improved in two aspects. By analyzing the principles of the MC algorithm, as well as the features of the specific application, improvements were developed to: eliminate ambiguities by using a unified isosurface constructing method in the voxels, and improve the operating efficiency of the MC algorithm by incorporating an octree structure. The analytical results of the examples demonstrate the effectiveness of our proposal.

  7. 2015 Latin American School of High-Energy Physics | Ibarra, Ecuador | 4 - 17 March 2015

    CERN Multimedia

    2014-01-01

    We would like to draw your attention to the 2015 Latin-American School of High-Energy Physics, to be held in Ibarra, Ecuador from 4 to 17 March 2015.   PLEASE NOTE THAT THE DEADLINE FOR APPLICATIONS IS 21 NOVEMBER 2014. The lectures will cover a broad range of HEP topics at a level suitable for students working towards a PhD in experimental particle physics. Note that financial support may be available for Latin American students attending the School. Although the School is targeted particularly at students from Latin American countries, it is open to self-funding students from other regions. More details can be found here.

  8. XRF Newsletter, No. 24, March 2013

    International Nuclear Information System (INIS)

    The Physics Section (PS) of the International Atomic Energy Agency (IAEA) supports through its dedicated programs and activities the development of interdisciplinary applications of laboratory and accelerator based X ray spectrometry techniques. In particular, the IAEA in recognition of the contribution of the Synchrotron Radiation (SR) and of its unique properties in the research and development has designated the Elettra Laboratory at Syncrotrone Trieste (EST) as an IAEA collaborative centre. The IAEA and EST have been in cooperation since 2005 in the organization of many training (schools) and promotion (workshop) activities for the SR analytical techniques with the continuous support of the International Center for Theoretical Physics (ICTP) in Trieste

  9. Potentiel des moteurs à mélange pauvre face aux moteurs actuels à réglage stoechiométrique : consommation, émissions, exigence en octane The Challenge to Modern Stoichiometric Engines by the Potential Lean-Burn Engine: Consumption, Emissions, Fuel Requirements

    OpenAIRE

    Douaud A. M.; Ecomard A.; Guibet J. C.; Prigent M.

    2006-01-01

    Le moteur à allumage commandé pour application automobile aux États-Unis est généralement dépollué par catalyse trifonctionnelle qui impose un contrôle stoechiométrique du mélange air-carburant. Le contexte européen de 1990 pour la qualité de l'air stimule l'industrie automobile dans ses recherches de solutions techniques performantes. Le moteur à mélange pauvre, performant en consommation, est une solution potentielle si l'émission de NOx peut être maîtrisée par la combustion. Cet objectif n...

  10. Exposition aux endotoxines aéroportées et allergènes dans les animaleries et risques pour la santé

    OpenAIRE

    SCHWERY M.

    2014-01-01

    L'exposition aux endotoxines peut présenter des effets bénéfiques sur la santé. En effet, plusieurs études démontrent leur importance dans la théorie hygiéniste ainsi que leur effet négatif sur la croissance de certaines tumeurs. Toutefois, dans divers secteurs professionnels, l'environnement de travail favorise la présence d'endotoxines aéroportées et peut exposer le personnel à des risques sanitaires. C'est le cas...

  11. L'intervenant face aux objectifs de mission: entre tensions vécues et régulations tentées

    OpenAIRE

    Verstraeten, Michel

    2006-01-01

    Lorsqu’on s’intéresse aux récits de missions de conseil, on constate que les objectifs de mission qui sont proposés à l’intervenant suscitent souvent chez lui des questions délicates :faut-il poursuivre ce travail avec lequel je ne me sens pas en accord ?dans quelle voie faut-il s'engager face à une incompatibilité entre les souhaits du commanditaire et les objectifs contractualisés ?faut-il aller jusqu'au bout de la réalisation des objectifs contractualisés alors que le commanditaire semble ...

  12. Cartographie de la vulnérabilité globale d'une population citadine face aux risques naturels: le cas de Manizales

    Directory of Open Access Journals (Sweden)

    Anne-Catherine CHARDON

    1994-12-01

    Full Text Available Cette méthode cartographique sert à évaluer la vulnérabilité de la population d’une grande ville andine (Manizales, Colombie, exposée aux séismes et à de fréquents glissements de terrain. Sept facteurs naturels et huit facteurs socio-économiques, mesurés à l’échelle du quartier, sont intégrés, avec d’autre facteurs géographiques, dans une carte de vulnérabilité globale.

  13. La participation des personnes utilisatrices aux exercices de planification et d'organisation des services de santé mentale au Québec

    Directory of Open Access Journals (Sweden)

    Michèle Clément

    2013-10-01

    Full Text Available Cet article documente la manière dont s'est renouvelé et s'est transformé au fil du temps le projet de faire participer les usagers aux exercices de planification et d'organisation des services de santé mentale au Québec (Canada. Pour ce faire, les auteurs reviennent sur l'ensemble des documents ministériels qui ont traité de cette question et dégage, pour les principaux moment-clés, les principales modalités de participation des usagers.

  14. Le recours aux modeles dans l'enseignement de la biologie au secondaire : Conceptions d'enseignantes et d'enseignants et modes d'utilisation

    Science.gov (United States)

    Varlet, Madeleine

    Le recours aux modeles et a la modelisation est mentionne dans la documentation scientifique comme un moyen de favoriser la mise en oeuvre de pratiques d'enseignement-apprentissage constructivistes pour pallier les difficultes d'apprentissage en sciences. L'etude prealable du rapport des enseignantes et des enseignants aux modeles et a la modelisation est alors pertinente pour comprendre leurs pratiques d'enseignement et identifier des elements dont la prise en compte dans les formations initiale et disciplinaire peut contribuer au developpement d'un enseignement constructiviste des sciences. Plusieurs recherches ont porte sur ces conceptions sans faire de distinction selon les matieres enseignees, telles la physique, la chimie ou la biologie, alors que les modeles ne sont pas forcement utilises ou compris de la meme maniere dans ces differentes disciplines. Notre recherche s'est interessee aux conceptions d'enseignantes et d'enseignants de biologie au secondaire au sujet des modeles scientifiques, de quelques formes de representations de ces modeles ainsi que de leurs modes d'utilisation en classe. Les resultats, que nous avons obtenus au moyen d'une serie d'entrevues semi-dirigees, indiquent que globalement leurs conceptions au sujet des modeles sont compatibles avec celle scientifiquement admise, mais varient quant aux formes de representations des modeles. L'examen de ces conceptions temoigne d'une connaissance limitee des modeles et variable selon la matiere enseignee. Le niveau d'etudes, la formation prealable, l'experience en enseignement et un possible cloisonnement des matieres pourraient expliquer les differentes conceptions identifiees. En outre, des difficultes temporelles, conceptuelles et techniques peuvent freiner leurs tentatives de modelisation avec les eleves. Toutefois, nos resultats accreditent l'hypothese que les conceptions des enseignantes et des enseignants eux-memes au sujet des modeles, de leurs formes de representation et de leur approche

  15. LLE Review 114 (January-March 2008)

    International Nuclear Information System (INIS)

    This volume of the LLE Review, covering January-March 2008, features 'Cryogenic Targets: Current Status and Future Development', by D. R. Harding, D. H. Edgell, M. D. Wittman, L. M. Elasky, S. J. Verbridge, A. J. Weaver, L. D. Lund, W. Seka, W. T. Shmayda, R. T. Janezic, M. J. Shoup III, M. Moore, R. Junquist, and A. V. Okishev. In this article (p. 57), the authors report on the status of layering cryogenic DT and D2 targets at LLE for inertial confinement fusion (ICF) targets. This critical effort achieves the important milestone of routinely providing cryogenic DT targets that meet the 1.0-(micro)m (rms) OMEGA ice-quality-surface specification. The best D2-ice layers produced so far (rms roughness of 1.1 (micro)m) are approaching the quality typically achieved in DT targets. Efforts to improve the consistency of this process are reported along with investigations supporting the National Ignition Campaign studying issues relevant to indirect-drive and direct-drive cryogenic targets. Additional highlights of recent research presented in this issue include the following: (1) an improved laser speckle smoothing scheme that augments the current NIF 1-D SSD system by using multiple-FM modulators (MultiFM 1-D SSD) (p. 73). With a judicious choice of modulator frequencies, MultiFM 1-D SSD smoothes resonances produced at the higher spatial frequencies and can attain similar or even faster smoothing rates compared to the baseline NIF 2-D SSD system. DRACO simulations have shown that MultiFM 1-D SSD beam smoothing is sufficient for the direct-drive-ignition targets and pulse shapes analyzed thus far, and may even allow reducing the bandwidth enough to eliminate the need for dual-tripler frequency conversion on the NIF. (2) describes a time-gated, monoenergetic proton radiography that provides unique measurements of implosion dynamics of spherical targets in direct-drive inertial confinement fusion (ICF) (p. 81). Radiographs obtained at different implosion times, from

  16. LLE Review 114 (January-March 2008)

    Energy Technology Data Exchange (ETDEWEB)

    Zuegel, J.D.

    2008-07-30

    This volume of the LLE Review, covering January-March 2008, features 'Cryogenic Targets: Current Status and Future Development', by D. R. Harding, D. H. Edgell, M. D. Wittman, L. M. Elasky, S. J. Verbridge, A. J. Weaver, L. D. Lund, W. Seka, W. T. Shmayda, R. T. Janezic, M. J. Shoup III, M. Moore, R. Junquist, and A. V. Okishev. In this article (p. 57), the authors report on the status of layering cryogenic DT and D{sub 2} targets at LLE for inertial confinement fusion (ICF) targets. This critical effort achieves the important milestone of routinely providing cryogenic DT targets that meet the 1.0-{micro}m (rms) OMEGA ice-quality-surface specification. The best D{sub 2}-ice layers produced so far (rms roughness of 1.1 {micro}m) are approaching the quality typically achieved in DT targets. Efforts to improve the consistency of this process are reported along with investigations supporting the National Ignition Campaign studying issues relevant to indirect-drive and direct-drive cryogenic targets. Additional highlights of recent research presented in this issue include the following: (1) an improved laser speckle smoothing scheme that augments the current NIF 1-D SSD system by using multiple-FM modulators (MultiFM 1-D SSD) (p. 73). With a judicious choice of modulator frequencies, MultiFM 1-D SSD smoothes resonances produced at the higher spatial frequencies and can attain similar or even faster smoothing rates compared to the baseline NIF 2-D SSD system. DRACO simulations have shown that MultiFM 1-D SSD beam smoothing is sufficient for the direct-drive-ignition targets and pulse shapes analyzed thus far, and may even allow reducing the bandwidth enough to eliminate the need for dual-tripler frequency conversion on the NIF. (2) describes a time-gated, monoenergetic proton radiography that provides unique measurements of implosion dynamics of spherical targets in direct-drive inertial confinement fusion (ICF) (p. 81). Radiographs obtained at different

  17. Quels dispositifs de conseil pour l’agriculture familiale marocaine ? Réflexions pour une démarche de conception des dispositifs de conseil.

    Directory of Open Access Journals (Sweden)

    Patrick Dugué

    2014-03-01

    Full Text Available Dans le cadre de sa politique agricole actuelle structurée autour du Plan Maroc vert, L’Etat a engagé une réforme en profondeur du conseil agricole, service qui était essentiellement assuré par les Centres des Travaux et les Centres de Mise en Valeur. La Nouvelle Stratégie du Conseil Agricole prône d’associer aux services publics de conseil agricole des structures privées qui seront agréées par les pouvoirs publics. Sur la base de travaux de recherche et d’expertise, cet article aborde la diversification de l’offre de conseil (conseil technique mais aussi conseil de gestion pour les exploitations et les organisations professionnelles agricoles, conseil administratif et juridique, … et des publics cibles (chefs d’exploitations, les autres actifs familiaux, les responsables et salariés des organisations professionnelles agricoles, …. Il suggère de prendre en considération d’autres opérateurs actuels ou potentiels du conseil comme les agrofournisseurs, les organisations professionnelles agricoles bien structurées et les agro-industries. Au-delà de ces propositions, l’article aborde les principes d’une démarche générique de conception de dispositifs de conseil utile à tous les acteurs au niveau local, régional ou national.

  18. Analyse pragmatique du business model et performations de marché dans l'entrepreneuriat technologique

    OpenAIRE

    Eyquem-Renault, Marie

    2011-01-01

    Le business model, largement utilisé par les acteurs de l'entrepreneuriat technologique, reste faiblement inséré dans la littérature en sciences de gestion. Si le flou du concept ne semble pas poser problème aux praticiens, il nourrit les controverses académiques. Qu'est-ce qu'un business model ? Afin de répondre à cette question, la thèse adopte une approche originale pour définir le concept à partir de ce qu'il fait et fait faire aux acteurs de l'entrepreneuriat technologique. Le cadre d'an...

  19. Ozone minihole observation over the Balkan Peninsula in March 2005

    Science.gov (United States)

    Werner, R.; Valev, D.; Atanasov, A.; Kostadinov, I.; Petkov, B.; Giovanelli, G.; Stebel, K.; Petritoli, A.; Palazzi, E.

    Areas with dimensions of 1000 km -- 3000 km in which the total ozone content TOC decreases fast are called ozone miniholes They are generated mainly dynamically in two ways either by poor ozone airmass transport from the tropics to higher latitudes by planetary wave activity or they are connected with strong adiabatic uplifting of the tropopause height An ozone minihole generated by the second mechanism was observed over the Balkan Peninsula on 19 21 March 2005 In the middle of March the polar vortex was strongly disturbed by Rossby waves reaching up to the lower stratosphere Warming episodes over a geographical area covering the Barent Sea and the Polar Sea north from Central Siberia displaced a polar vortex fragment extremely southwards However the vorticity was weak and the stratospheric temperatures did not reach low values providing conditions for ozone chemical destruction via heterogenic reactions At the same time a Rossby wave ridge was located below the European polar fragment In the period from 13 to 19 March the thermal tropopause over Sofia was uplifting almost by 3 1 km Ozone distributions observed by the SCIAMACHY instrument on 18-21 March show an fast TOC decrease westwards from Ireland which was moving eastwards during the next days increasing the area in which the ozone content decreased On 20 21 March low ozone content was observed above the Stara Zagora 42 N 25 E ground-based station by means of the GASCOD instrument using DOAS technique The TOMS Earth probe instrument

  20. La défense face aux défis du dérèglement climatique

    Directory of Open Access Journals (Sweden)

    Bastien Alex

    2015-01-01

    Full Text Available Dans un rapport rédigé il y a plus de dix ans, le Pentagone établissait un lien entre sécurité et changement climatique. Depuis lors, l’étude du potentiel crisogène du phénomène s’est approfondie. Du fait de sa propension à renforcer le pouvoir de nuisance des aléas naturels et à, indirectement, produire de nouveaux risques, il est désormais considéré comme un « multiplicateur de menace » (Center for Naval Analyses 2007. Le changement climatique est ainsi un enjeu de premier plan pour les acteurs de la défense, institutionnels, militaires et industriels, et soulève plusieurs problématiques. Dans un premier temps se pose évidemment la question des risques et menaces sécuritaires découlant des manifestations des changements climatiques (modification du régime des précipitations, hausse du niveau des mers et océans, multiplication des phénomènes climatiques exceptionnels et l’étude de leur propension à générer de l’insécurité. Dans un deuxième temps se pose celle des réponses à y apporter en matière doctrinale (réflexion stratégique, opérationnelle (gestion de crise mais aussi en termes capacitaires (impacts sur l’outil militaire. Enfin, il convient d’étudier dans un troisième temps, et c’est là un paradoxe, les conséquences sur la sécurité internationale des politiques et stratégies d’adaptation qui seront développées par les Etats ou d’autres acteurs pour faire face aux défis posés par le dérèglement climatique.

  1. Harmonization of welding qualification provisions in RCC-M and European standards; Rapprochement des regles relatives aux qualifications de soudage dans les normes europeennes et le RCC-M

    Energy Technology Data Exchange (ETDEWEB)

    Lemoine, M. [Areva-NP, Tour AREVA, 92084 - Paris La Defense cedex (France); Lainez, B. [Areva-NP, usine de Chalon sur Saone 71380 Saint Marcel (France); Anastassiades, P. [EDF/Ceidre - 2 rue Ampere - 93206 SAINT-DENIS Cedex (France)

    2007-07-01

    Since a long time, numerous precautions for welding have been integrated in the nuclear codes, in particular in the RCC-M applicable to pressurized water reactors, in order to guarantee a high quality level of permanent assemblies. In parallel, European and ISO standardization works have led to a harmonisation of practices on qualification of welding processes, welders and operators. In the context of the regulatory evolutions presented during this conference, it was judged appropriate to bring closer the RCC-M practices and those of EN and ISO standards, while taking the precaution of specifying, if necessary, the complementary provisions allowing maintaining guarantees of quality consistent with the prior experience feedback. This paper presents the amendments brought to the RCC-M Code by the 2005 and 2007 addenda, in order to respond to this objective, and develops their motivations. (authors) [French] De nombreuses precautions ont ete integrees de longue date dans les codes nucleaires, et en particulier dans le RCC-M applicable aux reacteurs a eau sous pression, en matiere de soudage afin de garantir un haut niveau de qualite de ces assemblages permanents. Par ailleurs, des travaux europeens, puis ISO, ont conduit a une harmonisation des pratiques en matiere de qualification des modes operatoires de soudage et des soudeurs et operateurs. Dans le contexte des evolutions reglementaires presentees par ailleurs au cours de cette conference, il a ete juge opportun de rapprocher les pratiques du RCC-M et celles des normes EN et ISO, en prenant la precaution de specifier au besoin les dispositions complementaires permettant de maintenir des garanties de qualite coherentes avec le retour d'experience anterieur. La communication presente les amenagements apportees au code RCC-M par les modificatifs 2005 et 2007, afin de repondre a cet objectif, et en developpe les motivations. (auteurs)

  2. Non-linear vibrations of cracked structures: application to turbine rotors; Vibrations non-lineaires des structures fissurees: application aux rotors de turbines

    Energy Technology Data Exchange (ETDEWEB)

    El Arem, S.

    2006-01-15

    The aim of this work is to study the dynamic response of a cracked rotor to establish some possibilities for early on line crack detection. First, a review on experimental, numerical and analytical works on the dynamics of cracked rotors is given. Then, an original method of calculating the behavior of a cracked beam section in bending with shearing effects is presented. The nonlinear behavior relations are derived from a three-dimensional model taking into account the unilateral contact conditions on the crack's lips. Based on an energy formulation, this method could be applied to any geometry of crack. The exploration by different numerical integration methods of the vibratory response of some models of cracked rotors is presented in the third chapter of this thesis. The un-cracked parts of a rotor are represented by elements of bar or beam type, and the cracked section by a nonlinear spring taking into account the breathing mechanism of the cracks. At the end of this part, an original method of construction of a finite element of a cracked beam is presented. The final chapter is devoted to the analytical study of the system with 2 degrees of freedom. The breathing mechanism of the crack is taken into account by considering specific periodic variation of the global stiffness of the system. The differential equations system is solved using the harmonic balance method. The linear stability of the periodic solutions is studied by the Floquet theory. Some vibratory parameters are proposed as crack indicators. (author)

  3. Nonuniform transformation field analysis of multiphase elasto viscoplastic materials: application to MOX fuels; Analyse par champs de transformation de materiaux elastoviscoplastiques multiphases: application aux combustibles MOX

    Energy Technology Data Exchange (ETDEWEB)

    Roussette, S

    2005-05-15

    The description of the overall behavior of nonlinear materials with nonlinear dissipative phases requires an infinity of internal variables. An approximate model involving only a finite number of internal variables, Nonuniform Transformation Field Analysis, is obtained by considering a decomposition of these variables on a finite set of nonuniform transformation fields, called plastic modes. The method is initially developed for incompressible elasto viscoplastic materials. Karhunen-Loeve expansion is proposed to optimize the plastic modes. Then the method is extended to porous elasto viscoplastic materials. Finally the transformation field analysis, developed by Dvorak, is applied to nuclear fuels MOX. This method enables to make sensitivity studies to determine the role of some microstructural parameters on the fuel behaviour. Moreover the adequacy of the nonuniform method for fuels MOX is shown, the final objective being to be able to apply the model to the MOX in 3D. (author)

  4. General load function in geo-mechanics: application to underground works; Fonction de charge generale en geomecanique: application aux travaux souterrains

    Energy Technology Data Exchange (ETDEWEB)

    Maiolino, S

    2006-04-15

    This work deals both with the behavioral and numerical aspects of the mechanical response of a rock massif to the digging out of a tunnel. The comparison between existing criteria has permitted to stress on some key points, like the dependence of the criterion to the average stress and the extension ratio. A load function, easily identifiable with tests, with regular and convex properties, has been proposed which allows to take into account the shape of the Mohr envelope of the criterion and the extension ratio. Regularized forms of Mohr-Coulomb and Hoek-Brown criteria can thus be achieved. The development of this new criterion has been completed by the proposal of a numerical charts method which greatly speeds up the resolution. For the proposed criterion, the physical problem is equivalent to a purely geometrical problem in polar coordinates in the plan. Numerical charts can thus be built which allow to find immediately the value of plastic deformations and to greatly reduce the processing time. Tunnel calculation methods have been the object of a bibliographic synthesis, specifying the domains and limitations of use of tunnel dimensioning methods used by engineers. The modeling of tunnels excavation has been performed with the stationary algorithm designed for the calculation of systems submitted to mobile loads. This algorithm has been adapted to integrate the new criterion and the numerical charts system. These tools have been validated using a real case study and data supplied by the French national agency of radioactive waste management (ANDRA) in the framework of the MODEX-REP European project (5. Euratom plan). The study of these data has permitted to define a rock wear variable, easily identifiable and allowing to parameterize the damaged rock criterion. (J.S.)

  5. Fast ultrasonic visualisation under sodium. Application to the fast neutron reactors; Visualisation ultrasonore rapide sous sodium. application aux reacteurs a neutrons rapides

    Energy Technology Data Exchange (ETDEWEB)

    Imbert, Ch

    1997-05-30

    The fast ultrasonic visualization under sodium is in the programme of research and development on the inspection inside the fast neutron reactors. This work is about the development of a such system of fast ultrasonic imaging under sodium, in order to improve the existing visualization systems. This system is based on the principle of orthogonal imaging, it uses two linear antennas with an important dephasing having 128 piezo-composite elements of central frequency equal to 1.6 MHz. (N.C.)

  6. Guidebook for the implementation of obligations applicable to polluted sites and soils; Guide pour la mise en oeuvre des servitudes applicables aux sites et sols pollues

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    Any polluted soil represents a threat and can become an unacceptable risk for men and environment. This document presents some guidelines for the implementation of the obligations related to polluted soils: inventory of needs (prevention of any hazardous exposure, maintenance of the site surveillance, anticipation of safety measures in the case of works, perennializing of the information about the site); existing obligations (public utility obligations, project of general interest, private right conventional obligations, conventional obligations for the benefit of the government, conventional obligations in use between two parties); modalities of enforcement (obligations in the domain of water and soils); synthesis of the existing obligations. (J.S.)

  7. Industrial applications of solar energy: deserts, seas, the Alps; Les applications industrielles de l'energie solaire: du desert aux Alpes en passant par la mer

    Energy Technology Data Exchange (ETDEWEB)

    Allani, Y.

    2008-07-01

    In this set of presentation slides, after a review of worldwide energy resources the author presents his innovative technical solution aimed at contributing to future energy supply. An extra-flat solar concentrator was developed to produce industrial steam in the temperature range 150 to 300 {sup o}C. A prototype was operated on the site of the Federal Institute of Technology (EPFL) in Lausanne, Switzerland, for power generation at 12 kW{sub el}. In Ras al Khaimah, United Arab Emirates, the concept of the so-called Solar Island is to be tested. Construction work is underway. A floating circular platform will be equipped with parallel rows of extra-flat solar concentrators. The platform will rotate to follow the sun apparent movement and enhance the power output of the concentrators. A second project is presented that should be realised in the Swiss Alps. In this case the extra-flat concentrators will be mounted on existing steel constructions that prevent snow avalanches on steep grounds. The basic technical data of the two projects are given.

  8. Deformable object model and simulation. Application to lung cancer treatment; Modelisation et simulation parametrable d'objets deformables. Application aux traitements des cancers pulmonaires

    Energy Technology Data Exchange (ETDEWEB)

    Baudet, V

    2006-06-15

    Ionising treatment against cancers such as conformal radiotherapy and hadron therapy are set with error margins that take into account statistics of tumour motions, for instance. We are looking for reducing these margins by searching deformable models that would simulate displacements occurring in lungs during a treatment. It must be personalized with the geometry obtained from CT scans of the patient and also it must be parameterized with physiological measures of the patient. In this Ph. D. thesis, we decided to use a mass-spring system to model lungs because of its fast and physically realist deformations obtained in animation. As a starting point, we chose the model proposed by Van Gelder in order to parameterize a mass-spring system with rheological characteristics of an homogeneous, linear elastic isotropic material in two dimensions (2D). However, we tested this model and proved it was false. Hence we did a Lagrangian study in order to obtain a parametric model with rectangular in 2D (cubic in 3D) elements. We also determined the robustness by testing with stretching, inflating, shearing and bending experiments and also by comparing results with other infinite element method. Thus, in this Ph.D. thesis, we explain how to obtain this parametric model, and how it will be linked to physiological data and how accurate it will be. (author)

  9. Application of the 2910 by-law to coal-fired heating plants; Application de l`arrete 2910 aux chaudieres a charbon

    Energy Technology Data Exchange (ETDEWEB)

    Hing, K. [CDF Energie (France)

    1997-12-31

    This paper analyzes the impact of the new French regulation about medium power thermal equipments on small coal-fired combustion installations (2 - 20 MW) in particular concerning the limit values of SO{sub 2}, NO{sub x} and dust emissions. (J.S.)

  10. Behaviour and lifetime of multi-perforated parts: application to turbine blades; Comportement et duree de vie des pieces multiperforees: application aux aubes de turbine

    Energy Technology Data Exchange (ETDEWEB)

    Cardona, J.M.

    2000-12-15

    High-pressure turbine blades are submitted to very high thermal and mechanical constraints but also variable with time, thus leading to combined fatigue and creep phenomena. Micro-channels are an efficient mean to reduce the global temperature of parts but they generate temperature gradients and stress concentrations which can be at the origin of cracks. Thus, geometrical singularities are important factors to take into consideration in the analysis of the behaviour and lifetime of HP turbine blades. A 3D calculation of a multi-perforated blade has been performed in isotropic and anisotropic elasticity and visco-plasticity conditions and in isothermal and aniso-thermal conditions. A dimensioning method for turbine blades, based on homogenization methods, has been proposed. It allows to replace the heterogenous area (the holes of the leading edge) by an equivalent homogenous medium having effective properties. This medium has been determined in elasticity using classical homogenization methods, and then in isotropic viscosity and in the monocrystal case using a pragmatic method. The preconized homogenization methods comprise a relocation step allowing to use the informations of the simplified calculation in order to apply suitable boundary conditions to a representative cell with a single cooling hole. Because the reference calculation gives the constraints-deformations status around the holes, the result given by the relocation method can be unambiguously evaluated. The limitations of such an approach in the case of strong stress gradients has been evidenced. In these conditions of operation, the classical homogenization methods are not suitable and the equivalent homogenous medium can be considered as a generalized continuous medium. A thermo-elasticity formulation of the second gradient is proposed. An experimental study has been carried out in parallel at the ONERA in order to analyze the influence of perforation on the behaviour and lifetime. Thermo-mechanical fatigue tests, taking into consideration the thermal gradients observed on a real structure, have been performed on coated monocrystalline test-pieces up to their rupture. These tests have been simulated by finite elements and a model of fatigue-creep-oxidation lifetime has been applied as a post-processing of the structure calculation. Therefore, calculation-experiment comparisons at the behaviour and lifetime level could be performed. (J.S.)

  11. Transport and turbulence in a magnetized plasma (application to tokamak plasmas); Transport et turbulence dans un plasma magnetise (application aux plasmas de tokamaks)

    Energy Technology Data Exchange (ETDEWEB)

    Sarazin, Y

    2004-03-01

    This document gathers the lectures made in the framework of a Ph.D level physics class dedicated to plasma physics. This course is made up of 3 parts : 1) collisions and transport, 2) transport and turbulence, and 3) study of a few exchange instabilities. More precisely the first part deals with the following issues: thermonuclear fusion, Coulomb collisions, particles trajectories in a tokamak, neo-classical transport in tokamaks, the bootstrap current, and ware pinch. The second part involves: particle transport in tokamaks, quasi-linear transport, resonance islands, resonance in tokamaks, from quasi to non-linear transport, and non-linear saturation of turbulence. The third part deals with: shift velocities in fluid theory, a model for inter-change instabilities, Rayleigh-Benard instability, Hasegawa-Wakatani model, and Hasegawa-Mima model. This document ends with a series of appendices dealing with: particle-wave interaction, determination of the curvature parameter G, Rossby waves.

  12. Supporting interpretation of dynamic simulation. Application to chemical kinetic models; Aides a l`interpretation de simulations dynamiques. Application aux modeles de cinetique chimique

    Energy Technology Data Exchange (ETDEWEB)

    Braunschweig, B.

    1998-04-22

    Numerous scientific and technical domains make constant use of dynamical simulations. Such simulators are put in the hands of a growing number of users. This phenomenon is due both to the extraordinary increase in computing performance, and to better graphical user interfaces which make simulation models easy to operate. But simulators are still computer programs which produce series of numbers from other series of numbers, even if they are displayed graphically. This thesis presents new interaction paradigms between a dynamical simulator and its user. The simulator produces a self-made interpretation of its results, thanks to a dedicated representation of its domain with objects. It shows dominant cyclic mechanisms identified by their instantaneous loop gain estimates, it uses a notion of episodes for splitting the simulation into homogeneous time intervals, and completes this by animations which rely on the graphical structure of the system. These new approaches are demonstrated with examples from chemical kinetics, because of the energic and exemplary characteristics of the encountered behaviors. They are implemented in the Spike software, Software Platform for Interactive Chemical Kinetics Experiments. Similar concepts are also shown in two other domains: interpretation of seismic wave propagation, and simulation of large projects. (author) 95 refs.

  13. Application of decision analysis to intelligent transportation system societal issues. Final report, 15 March 1996-14 March 1997

    Energy Technology Data Exchange (ETDEWEB)

    Richardson, B.C.; Albers, W.A.; Kostyniuk, L.P.; Barnes, M.A.; Rodriguez, D.A.

    1997-03-14

    A demonstration of the use of decision analysis to address societal and institutional issues in an Intelligent Transportation System-based paratransit implementation was performed. A decision analysis technique called Multi-Organization Decision Analysis (MODA) was developed, and it is based on the Decision Risk Analysis process used widely in the private sector. Its objective is to facilitate consensus among the disparate public and private sector stakeholders in a decision process. The stakeholders are represented on a decision-making team, and they are supported by a team of analysts. MODA meetings are aided by facilitators. The process includes the development of a shared vision statement framing the problem, developing alternative solutions, analyzing the alternatives, and reaching a decision. Progression to the next step of the process does not occur until consensus is reached on the present step.

  14. La chasse aux axions

    CERN Multimedia

    Robilliard, Cécile

    2009-01-01

    Since three years, physicists double efforts to catch an hypothetical particle that would not interact - or little - with the matter. Its detection would resolve a lot of problems in the filed of particle physics and cosmology. (4 pages)

  15. Onomastique basque aux Philippines

    OpenAIRE

    Morvan, Michel

    2010-01-01

    En l'an de grâce 1521, le 16 mars, le célèbre navigateur conquérant portugais au service de l'Espagne, Ferdinand Magellan, aborde par l'est cet ensemble d'îles innombrables (près de sept mille !) de l'Océan Pacifique qui prendra bientôt le nom de Philippines. L'ensemble en question était peuplé de Negritos de type mélanésien (sans aucun doute les plus anciennes ethnies) et de Philippins asiatiques proprement dits venus par la suite de Malaisie et d'Indonésie. Les Musulmans avaient déjà pris p...

  16. Des millets aux nations

    OpenAIRE

    Pitsos, Nicolas

    2012-01-01

    L’auteur de ce roman construit son intrigue sur l’histoire de plusieurs familles d’une part au moment de l’effondrement d’un monde, celui des millets de l’Empire ottoman fondé sur le principe de l’identification des individus en fonction de leurs croyances religieuses et, d’autre part, lors de la mise en place d’une nouvelle organisation politique, celle des États-nations obsédés par l’idée de la définition de l’individu sur la base de critères nationaux. L'exemple narratif dominant est celui...

  17. Science and Technology Review March 2012

    Energy Technology Data Exchange (ETDEWEB)

    Nikolic, R J

    2012-02-15

    This month's issue has the following articles: (1) Honoring a Legacy of Service to the Nation - The nation pays tribute to George Miller, who retired in December 2011 as the Laboratory's tenth director; (2) Life-Extension Programs Encompass All Our Expertise - Commentary by Bruce T. Goodwin; (3) Extending the Life of an Aging Weapon - Stockpile stewards have begun work on a multiyear effort to extend the service life of the aging W78 warhead by 30 years; (4) Materials by Design - Material microstructures go three-dimensional with improved additive manufacturing techniques developed at Livermore; (5) Friendly Microbes Power Energy-Producing Devices - Livermore researchers are demonstrating how electrogenic bacteria and microbial fuel cell technologies can produce clean, renewable energy and purify water; and (6) Chemical Sensor Is All Wires, No Batteries - Livermore's 'batteryless' nanowire sensor could benefit applications in diverse fields such as homeland security and medicine.

  18. Program solicitation. Closing date: March 1, 1995

    Energy Technology Data Exchange (ETDEWEB)

    1995-01-01

    This document is a solicitation for small business to participate in innovation research. The Department of Energy (DOE) invites small business concerns to submit grant applications under this thirteenth annual solicitation for the Small Business Innovation Research (SBIR) program. Firms with strong research capabilities in science or engineering in any of the topic areas described in Appendix 1 are encouraged to participate. DOE will support high-quality research or research and development (R and D) on advanced concepts concerning important energy related scientific or engineering problems and opportunities that could lead to significant public benefit if the research is successful. Objectives of this program include increasing private sector commercialization of technology developed through DOE-supported R and D, stimulating technological innovation in the private sector, strengthening the role of small business in meeting Federal research and R and D needs, and improving the return on investment from Federally funded research for economic and social benefits to the Nation.

  19. Marché des catalyseurs d'hydrogénation des corps gras Market of Hydrogenation Catalysts for Fats and Derivatives

    Directory of Open Access Journals (Sweden)

    Barraque M.

    2006-11-01

    Full Text Available L'institut Français du Pétrole (IFP ayant acquis une grande expérience dans le domaine des catalyseurs, notamment d'hydrogénation, le Département Evaluation a effectué à diverses reprises des études qui en évaluent les marchés potentiels. L'analyse qui suit a été réalisée en vue de déterminer les débouchés possibles des catalyseurs utilisés dans l'hydrogénation des corps gras; elle couvre l'industrie alimentaire, l'hydrogénation des acides gras d'origine animale ou végétale, la production d'alcools gras et d'amines grasses. Ce marché dépasse 60 millions de dollars/an et correspond à près de 11 000 t/an de catalyseurs utilisés. Ces valeurs tiennent compte des consommations captives de catalyseurs produits par les compagnies utilisatrices. Ce chiffre d'affaires est du même ordre que celui des catalyseurs d'hydrogénation utilisés dans la synthèse des grands intermédiaires pétrochimiques. Plus de 64 % des applications concernent l'industrie alimentaire : production de margarine et shortening, hydrogénation d'huiles de salade et de friture aux États-Unis. Alors que la consommation de catalyseurs utilisés en lipochimie est très fortement concentrée dans les principales régions industrialisées : États-Unis, Europe occidentale et Japon, celle de I'lindustrie alimentaire est beaucoup plus dispersée : les 3 régions précitées représentent moins de 64 % de la consommation mondiale. Les débouchés estimés représentent des chiffres d'affaires annuels de 41×10·6 dollars pour l'industrie alimentaire, 8,3×10·6 dollars pour la production d'acide gras, 11×10·6 dollars pour la production d'alcools gras et 1,3×10·6 dollars pour la production d'amines grasses. Ces hydrogénations sont effectuées en présence de nickel sur support (industrie alimentaire, production d'acides gras et d'amines secondaires et tertiaires, en présence de nickel de Raney (production d'amines primaires ou de chromite de cuivre

  20. Dépendance économique aux produits forestiers non ligneux : cas des ménages riverains des forêts de Boulon et de Koflandé, au Sud-Ouest du Burkina Faso

    DEFF Research Database (Denmark)

    Ouédraogo, M; Ouédraogo, D; Thiombiano, T;

    2013-01-01

    forêts. Les résultats montrent que le revenu moyen annuel par ménage est de 846 800 F CFA avec une contribution de 60% du revenu des cultures et 12% du revenu d’élevage. Les PFNL procurent en moyenne 72 479 F CFA par ménage et par an à près de 93% des ménages enquêtés. La dépendance économique des...... ménages aux PFNL est estimée à 12%. Elle diminue avec le revenu, traduisant une plus grande dépendance des ménages pauvres aux PFNL. Par ailleurs, les hommes sont économiquement moins dépendants des PFNL que les femmes. Les autres déterminants de la dépendance aux PFNL sont le statut d’autochtone, la...

  1. Détermination de quelques paramètres hématologiques chez les agriculteurs exposés aux pesticides dans la région de Tlemcen

    OpenAIRE

    SAIDI, Fatima Zohra

    2015-01-01

    Résumé Les pesticides représentent une large gamme de produits utilisés de façon très variable. Les agriculteurs sont aujourd'hui le groupe le plus exposé aux risques de contact avec les pesticides. L'objectif de notre travail consiste à mettre en évidence les altérations hématologiques chez les hommes agriculteurs disposés aux pesticides comparés aux hommes témoins. Un prélèvement sanguin est réalisé afin de déterminer quelques paramètres hématologiques (FNS, numérations cellu...

  2. Productivity and injectivity of horizontal wells. Annual report, March 10, 1996--March 9, 1997

    Energy Technology Data Exchange (ETDEWEB)

    Aziz, K.; Hewett, T.A.; Arbabi, S.; Smith, M.

    1997-06-01

    Progress is reported on the following tasks: advanced modeling of horizontal wells; heterogeneous effects of reservoirs; development of improved methods for calculating multi-phase pressure drops within the wellbore; pseudo-functions; development of multi-well models;testing of HW models with field examples; enhanced oil recovery applications; and application studies and their optimization.

  3. Performance of the meteorological radiation model during the solar eclipse of 29 March 2006

    Directory of Open Access Journals (Sweden)

    B. E. Psiloglou

    2007-12-01

    Full Text Available Various solar broadband models have been developed in the last half of the 20th century. The driving demand has been the estimation of available solar energy at different locations on earth for various applications. The motivation for such developments, though, has been the ample lack of solar radiation measurements at global scale. Therefore, the main goal of such codes is to generate artificial solar radiation series or calculate the availability of solar energy at a place.

    One of the broadband models to be developed in the late 80's was the Meteorological Radiation Model (MRM. The main advantage of MRM over other similar models was its simplicity in acquiring and using the necessary input data, i.e. air temperature, relative humidity, barometric pressure and sunshine duration from any of the many meteorological stations.

    The present study describes briefly the various steps (versions of MRM and in greater detail the latest version 5. To show the flexibility and great performance of the MRM, a harsh test of the code under the (almost total solar eclipse conditions of 29 March 2006 over Athens was performed and comparison of its results with real measurements was made. From this hard comparison it is shown that the MRM can simulate solar radiation during a solar eclipse event as effectively as on a typical day. Because of the main interest in solar energy applications about the total radiation component, MRM focuses on that. For this component, the RMSE and MBE statistical estimators during this study were found to be 7.64% and −1.67% on 29 March as compared to the respective 5.30% and +2.04% for 28 March. This efficiency of MRM even during an eclipse makes the model promising for easy handling of typical situations with even better results.

  4. Atopic Dermatitis and the Atopic March: What Is New?

    Directory of Open Access Journals (Sweden)

    Annalisa Patrizi

    2011-01-01

    Results. Studies about atopic march are cross-sectional population studies at different ages. They show that the most important predisposing factor for atopy is a decrease of the filaggrin's expression. Conclusions. The most modern theories seem to show that the most important factor which starts the atopic march is represented by an impaired epidermal barrier. It causes an increase in skin permeability to allergens that could induce sensitization even in the airways. The major predisposing factor is a primary inherited epithelial barrier defect resulting from filaggrin gene mutation, but other factors may play a role in this complex mechanism. Further studies are needed to focus on AD treatment and preventive strategies.

  5. Final Report: Collider Physics, April 1, 1995 - March 31, 1999

    International Nuclear Information System (INIS)

    This report summarizes the work done on Grant DE-FG03-95ER40916 over the period April 1, 1995 through March 31, 1999. Detailed progress have been submitted for the years through March 31, 1999. The primary project during this period was the D0 experiment at Fermilab and is discussed first. The last year of the period was an extension to complete the study of laser induced fluorescence in neon. This work is discussed in the section ''Detector R and D''

  6. VISIT OF HUNGARIAN FIRMS AT CERN 26 - 27 MARCH 2002

    CERN Multimedia

    C.L. Jullien-Woringer

    2002-01-01

    26 March: The companies will contact directly potential users interested in their products. 27 March: 09h00 to 17h30 The firms will be in the Main Building - Pas Perdus List of Companies: EGI Contracting Engineering Co. Ltd. SILEX Industrial Automation Ltd. CAT-SCIENCE Bt. MTA ITA LAI Cerntech Ltd. Meditor Ltd. Euronet Rt. Detailed information on the companies is also available on the Web. For further information please contact Mrs C.L. Jullien-Woringer (tel. 73722-76360).

  7. Endosidin1 defines a compartment involved in endocytosis of the brassinosteroid receptor BRI1 and the auxin transporters PIN2 and AUX1.

    Science.gov (United States)

    Robert, Stéphanie; Chary, S Narasimha; Drakakaki, Georgia; Li, Shundai; Yang, Zhenbiao; Raikhel, Natasha V; Hicks, Glenn R

    2008-06-17

    Although it is known that proteins are delivered to and recycled from the plasma membrane (PM) via endosomes, the nature of the compartments and pathways responsible for cargo and vesicle sorting and cellular signaling is poorly understood. To define and dissect specific recycling pathways, chemical effectors of proteins involved in vesicle trafficking, especially through endosomes, would be invaluable. Thus, we identified chemicals affecting essential steps in PM/endosome trafficking, using the intensely localized PM transport at the tips of germinating pollen tubes. The basic mechanisms of this localized growth are likely similar to those of non-tip growing cells in seedlings. The compound endosidin 1 (ES1) interfered selectively with endocytosis in seedlings, providing a unique tool to dissect recycling pathways. ES1 treatment induced the rapid agglomeration of the auxin translocators PIN2 and AUX1 and the brassinosteroid receptor BRI1 into distinct endomembrane compartments termed "endosidin bodies"; however, the markers PIN1, PIN7, and other PM proteins were unaffected. Endosidin bodies were defined by the syntaxin SYP61 and the V-ATPase subunit VHA-a1, two trans-Golgi network (TGN)/endosomal proteins. Interestingly, brassinosteroid (BR)-induced gene expression was inhibited by ES1 and treated seedlings displayed a brassinolide (BL)-insensitive phenotype similar to a bri1 loss-of-function mutant. No effect was detected in auxin signaling. Thus, PIN2, AUX1, and BRI1 use interactive pathways involving an early SYP61/VHA-a1 endosomal compartment.

  8. 78 FR 29431 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2013-05-20

    ... March 19, 2013 (78 FR 16912). We recognize that the vision of an applicant may change and affect his/her... FR 3316). Background On March 19, 2013, FMCSA published a notice of receipt of exemption applications from certain individuals, and requested comments from the public (78 FR 16912). That notice listed...

  9. The Resolution of Disputes at the London Court of International Arbitration (LCIA): Practical Aspects (Moscow, March 21, 2014)

    OpenAIRE

    Nadia Hubbuck; Jane Fedotova; Konstantin Astafiev; Irina Suspitcyna

    2015-01-01

    This note is an overview of the seminar organized on March 21, 2014 in Moscow. during the discussion participants considered a draft of the new LCIA rules, the practical aspects of the submission of applications and consideration of cases at the LCIA, the difficulties arising in the enforcement of the arbitration agreements and awards in the russian federation, as well as support, which the russian courts are able to provide to the international arbitration. the summary of the issues discusse...

  10. Le marché des agrosolvants

    Directory of Open Access Journals (Sweden)

    Bewa Hilaire

    2005-07-01

    Full Text Available Today three series of regulations have a direct impact on reducing the consumption of petrochemical solvents: these are directive 1999/13/EC aimed at reducing emissions of volatile organic compounds (VOCs due to industrial uses of solvents, and the directives on dangerous substances (67/548/EEC and on dangerous goods (1999/48/EC amended in 2002 that pertain mainly to chlorinated solvents (for example, trichloroethylene and aromatics. The use of molecules derived from agriculture is an attractive alternative, both for agricultural production and in terms of environmental constraints. Companies in France are increasingly interested in biosolvents, with research programmes that receive funding from ADEME (via AGRICE and are supported by several research laboratories and technical institutes. Three classes of biosolvents possess the technical characteristics that enable them to replace petrochemical solvents: vegetable oil esters (oilseed rape, sunflower, soy; esters of organic acids obtained by fermentation (acetic, citric, gluconic, lactic and succinic acid; ethanol and terpenes, in particular terpene alcohols that are not considered to be VOCs (steam pressure < 10 Pa at 293.15 K. Overall, biosolvents have indubitable advantages. They possess high solvent capacity and low volatility, and are non-inflammable, biodegradable and non-toxic for the environment. They present no health risks, and are favourably rated for the impact classes “non-renewable primary energy” and “greenhouse effect”. Depending on the degree of product maturity, the main application sectors for biosolvents are printing inks, plant protection products, manual cold surface cleansing, paints and detergents.

  11. Irradiation Processing Department monthly record report, March 1959

    Energy Technology Data Exchange (ETDEWEB)

    Greninger, A.B.

    1959-04-21

    This document details activities of the irradiation processing department during the month of March, 1959. 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; Employee Relations Operation; and Financial Operation.

  12. Ten years after the Umbria–Marche earthquake

    OpenAIRE

    Tondi, E.; Department of Earth Sciences, University of Camerino, Italy; Chiaraluce, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; Roberts, G.; Research School of Earth Sciences, University College London, London, UK.

    2009-01-01

    This issue includes 26 thematically-related papers which were presented at the workshop “Ten years after the Umbria–Marche earthquake: state of the art of seismogenesis in Italy” held in Camerino, Italy, on 26th and 27th June 2007.

  13. Hanford Atomic Products Operation monthly report, March 1953

    Energy Technology Data Exchange (ETDEWEB)

    McCune, F.K.

    1953-04-22

    This is a progress report of the production reactors on the Hanford Reservation for the month of March 1953. 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.

  14. "March of the Penguins": Building Knowledge in a Kindergarten Classroom

    Science.gov (United States)

    Fingeret, Lauren

    2008-01-01

    In this study, the author followed a kindergarten class that watched the film and used the book "March of the Penguins" in order to find out how much information the students learned from the film and how the teacher integrated the texts into her unit on penguins in order to maximize their impact. The students were given an oral assessment prior…

  15. DIKU-LASMEA Workshop on Computer Vision, Copenhagen, March, 2009

    DEFF Research Database (Denmark)

    Fihl, Preben

    This report will cover the participation in the DIKU-LASMEA Workshop on Computer Vision held at the department of computer science, University of Copenhagen, in March 2009. The report will give a concise description of the topics presented at the workshop, and briefly discuss how the work relates...

  16. Great Alaska Earthquake, Prince William Sound, March 28, 1964

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Prince William Sound magnitude 8.4 earthquake at 03:36 UT on March 28, 1964, was one of the largest shocks ever recorded on the North American Continent. The...

  17. Irradiation Processing Department monthly record report, March 1957

    Energy Technology Data Exchange (ETDEWEB)

    1957-04-19

    This document details activities of the irradiation processing department during the month of March, 1957. 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; Employee Relations Operation; and Financial Operation.

  18. Energy situation - March 2008; Conjoncture energetique - mars 2008

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    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.)

  19. RECENT REFERENCES: JANUARY 1, 2005 TO MARCH 31, 2005

    Energy Technology Data Exchange (ETDEWEB)

    WINCHELL, D.F.

    2006-03-31

    This document lists experimental references added to Nuclear Science References (NSR) during the period January 1, 2005 to March 31, 2005. The first section lists keynumbers and keywords sorted by mass and nuclide. The second section lists all references, ordered by keynumber.

  20. CNN Newsroom Classroom Guides. March 1-31, 1996.

    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, provide program rundowns, suggestions for class activities and discussion, student handouts, and a list of related news terms. Topics include: negative campaign ads, the end of the Sarajevo siege, alternative medicine in…

  1. An Episode of Late Blizzard, 25-26 March 2013

    Directory of Open Access Journals (Sweden)

    Danciu-Ciurlãu Doruţa

    2014-05-01

    Full Text Available Climatologically speaking, March is a month of transition, from the cold season to a less cold season, and, therefore, weather phenomena occur in a different way from how they usually do during the cold season. The transition between seasons or a late winter can sometimes cause phenomena that usually happened in January or February, at the end of March. Such a case was the snowstorm occurred in two episodes (22nd - 24th and 25th - 27th of March 2013 in Romania in March 2013. In this paper is analyzed the first episode which affected southeastern Romania from different points of view: climatologically, synoptically, economically and social. It was used climatologically data over a period of 112 years, as well as a data for the first 3 month of 2013 which were provided by the National Meteorological Administration (NMA. It has been used synoptic maps, different pressure levels maps, and satellite data, radar data, soundings, all provided by the National Center of Weather Forecast of the NMA. Other type of information from the General Inspectorate for Emergency Situation (IGSU or other ministries and media were also taken into consideration.

  2. Energy situation, March 2006; Conjoncture energetique, mars 2006

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-04-15

    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.)

  3. March Money Madness: The Coaches vs. the Professors

    Science.gov (United States)

    Cottle, Thomas

    2009-01-01

    College basketball's March Madness has come at a time when one prominent coach's salary has been held up for inspection. Apparently, the fact that the $1.6-million annual income of the University of Connecticut's Jim Calhoun makes him the highest-paid public employee in his state has rankled some people. Or are they more upset that he was caught…

  4. 2012 BATTERIES GORDON RESEARCH CONFERENCE, MARCH 4-9, 2012

    Energy Technology Data Exchange (ETDEWEB)

    Stephen Harris

    2012-03-09

    The Gordon Research Conference on BATTERIES was held at Four Points Sheraton / Holiday Inn Express, Ventura, California, March 4-9, 2012. The Conference was well-attended with 176 participants. Gordon Research Conferences does not permit publication of meeting proceedings.

  5. Irradiation Processing Department monthly record report, March 1960

    Energy Technology Data Exchange (ETDEWEB)

    1960-04-21

    This document details activities of the Irradiation Processing Department during the month of March, 1960. 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; Employee Relations Operation; and Financial Operation.

  6. Irradiation Processing Department monthly record report, March 1958

    Energy Technology Data Exchange (ETDEWEB)

    Greninger, A.B.

    1958-04-21

    This document details activities of the irradiation processing department during the month of March, 1958. 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; Employee Relations Operation; and Financial Operation.

  7. Hanford Laboratories Operation monthly activities report, March 1960

    Energy Technology Data Exchange (ETDEWEB)

    1960-04-15

    This is the monthly report for the Hanford Laboratories Operation. Metallurgy, reactor fuels, physics and instrumentation, reactor technology, chemistry, separation processes, biology, financial activities, employee relations, laboratories auxiliaries, radiation protection, operation research, inventions, visits, and personnel status are discussed. This report is for March 1960.

  8. Du karma aux planètes From the Karma to the Planets: Arakanese Healers and their Heterogeneous Practices

    Directory of Open Access Journals (Sweden)

    Céline Coderey

    2012-10-01

    Full Text Available En Arakan, les conceptions de la maladie et les pratiques thérapeutiques relevant du bouddhisme theravāda, de l’astrologie, du culte des esprits, de la médecine et de bien d’autres domaines forment un ensemble signifiant et hiérarchisé. Ensemble signifiant parce que malades et thérapeutes considèrent ces conceptions et pratiques comme indissociables les unes des autres et devant donc être combinées afin de mener à bien le processus de guérison. Ensemble hiérarchisé car, à l’intérieur de celui-ci, le bouddhisme occupe une place hégémonique au niveau des valeurs. Néanmoins, dans le domaine thérapeutique, son apport est limité. Ce n’est que combinées aux pratiques astrologiques, médicales, etc. que les pratiques bouddhiques peuvent contribuer à la prévention et au soin des maladies. L’attention est ici portée sur la manière dont laquelle cette totalité signifiante et hiérarchisée s’exprime dans les pratiques des thérapeutes. Sur la base d’une étude de cas, l’article montre que souvent les thérapeutes cumulent plusieurs formations et pratiques plus ou moins hétérogènes afin de pouvoir intervenir sur le plus grand nombre possible de facteurs de la maladie : déséquilibre des éléments corporels, mauvais karma, influences planétaires néfastes, agressions par des puissances maléfiques.In Arakan, sickness-related conceptions and therapeutic practices issuing from Theravada Buddhism, astrology, spirits cult and medicine form a meaningful and hierarchical whole. This whole is meaningful because patients and healers consider that it is the combination of various conceptions and various practices which makes sense and which guarantees the succes of the healing treatement. The whole is hierarchical because conceptions and practices are organised into a hierarchy where Buddhism occupies an hegemonic position. Nevertheless, in the healing field its contribution is limited. Only if combined with

  9. La « brutalisation » de la guerre. Des guerres d’Italie aux guerres de Religion

    Directory of Open Access Journals (Sweden)

    Jean-Louis Fournel

    2005-04-01

    avait fait ses premières armes sur les champs de bataille italiens et des réactions face aux atrocités de la guerre civile, permettrait peut-être tout à la fois d’inscrire la barbarie dans le présent des conflits, de permettre un nouveau discours pacifiste, de confier paradoxalement au souverain comme instance laïque, au-dessus des choix religieux personnels, le rôle d’arbitre et de régulateur des guerres (cf. les politiques, et, enfin, de relancer la question du jus in bello (le jus ad bellum n’étant plus vraiment opératoire, pas plus que le rôle d’arbitre du pape qui s’effondrera bientôt définitivement dans l’Europe née du traité de Westphalie.

  10. Self-clearance mechanism of mitochondrial E3 ligase MARCH5 contributes to mitochondria quality control.

    Science.gov (United States)

    Kim, Song-Hee; Park, Yong-Yea; Yoo, Young-Suk; Cho, Hyeseong

    2016-01-01

    MARCH5, a mitochondrial E3 ubiquitin ligase, controls mitochondrial dynamics proteins and misfolded proteins, and has been proposed to play a role in mitochondria quality control. However, it remains unclear how mutant MARCH5 found in cancer tissues is removed from cells. Here, we show that mutation in the MARCH5 ligase domain increased its half-life fourfold, resulting in a drastic increase in its protein level. Abnormal accumulation of the E3 ligase-defective MARCH5 mutants MARCH5(H43W) and MARCH5(C65/68S) was diminished by overexpression of active MARCH5(WT) ; the mutant proteins were degraded through the ubiquitin-proteasome pathway. Coimmunoprecipitation revealed that MARCH5 forms homodimers, and that substitution of Gly to Leu at the first putative GxxxG dimerization motif, but not the second, resulted in a loss of dimeric interaction. Moreover, overexpression of the dimerization-defective mutant MARCH5(4GL) could not decrease the level of accumulated MARCH5(H43W) , suggesting that dimerization of MARCH5 is necessary for self-clearance. Abnormal accumulation of MARCH5(H43W) and mitochondrial hyperfusion led to NF-ĸB activation, which was suppressed by overexpression of MARCH5(WT) . Together, the data reveal a self-protective mechanism involving MARCH5, which can target its own dysfunctional mutant for degradation in order to maintain mitochondrial homeostasis.

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

    Directory of Open Access Journals (Sweden)

    Loïc Wacquant

    2003-09-01

    Full Text Available 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.Toxicómanos, discapacitados mentales, indigentes : la incuria de los servicios sociales y medicales en Estados Unidos garantiza el hecho de que estas tres categorías sociales sean cada año más numerosas en las cárceles, pues la prisión sirve de vertedero a la basura humana de una sociedad cada vez más sometida al dictado del mercado. De esta manera, su suerte proporciona una verificación experimental trágica a la hipótesis del vínculo causal entre el retroceso del Estado social y la prosperidad del Estado penal.Drugs addicts, the mentally ill, the homeless: the insufficiency and ineptness of social and medical services in the United States ensures that these three categories find themselves behind bars in ever larger numbers over time, as the prison is turned into a dumping ground for the human waste of a society more and more subordinated to the dictates of the market. Their fate thus offers a tragic experimental verification to the hypothesis of a causal and functional link between the withering away of the social state and the prosperity of the penal state.

  12. Oh, Canada ! La baisse de la criminalité au Canada et aux Etats-Unis entre 1991 et 2002  Explaining the American and Canadian Crime Drop in the 1990’s

    Directory of Open Access Journals (Sweden)

    Marc Ouimet.

    2009-11-01

    Full Text Available Après des décennies d’augmentation constante de leur criminalité, le Canada et les États-Unis connaissent des baisses importantes depuis le début des années 1990. Plusieurs explications ont récemment fait surface aux États-Unis sur les facteurs pouvant rendre compte de cette baisse, dont une augmentation du nombre de policiers, l’application par les forces de l’ordre de méthodes plus répressives et l’augmentation importante du taux d’incarcération. Notre analyse des tendances de la criminalité entre 1991 et 2001 pour quatre types d’infractions indique que des baisses comparables de la criminalité sont observables au Canada sans que des changements notables en termes de répression policière ou d’incarcération soient notables. Ainsi, les explications démographiques, économiques et culturelles semblent plus aptes à rendre compte des baisses de la criminalité en Amérique du Nord.After decades of continuously increasing crime rates, Canada and the United States have now experienced their first prolonged period of decline in crime rates. Criminologists are just starting to look at the reasons that may explain such a reversal. In the U.S., many factors have been invoked to explain the trend, including increases in the number of police officers, more aggressive policing, and an increased use of incarceration. Although Canada’s crime trends are similar to those found in the U.S., there has been little or no change in policing practices or incarceration trends. This paper suggests that the causes of the decline in crime rates lie elsewhere, namely, in demographic shifts, improved employment opportunities and changes in collective values. Full Text

  13. Le Giulietta e Romeo de Riccardo Zandonai : une création nationaliste en ordre de marche Riccardo Zandonai’s Giulietta e Romeo: When Nationalism Marches On

    Directory of Open Access Journals (Sweden)

    Emmanuelle Bousquet

    2011-12-01

    Full Text Available Giulietta e Romeo, une création nationaliste en ordre de marche se veut une lecture croisée de l’œuvre de Shakespeare à travers le regard du compositeur Riccardo Zandonai confronté à la tradition littéraire et musicale européenne et à travers celui du public et des critiques italiens dans un contexte historique marqué par le renforcement de l’idée nationale et la montée du nationalisme fasciste. Si rien dans le drame (texte et musique ne laisse transparaître les forces « antagonistes » en présence, les paratextes (lettres, articles de journaux... nous livrent nombre de détails significatifs pour notre analyse. Si le compositeur souhaite l’adhésion du public italien en faisant référence, dans sa création, aux sources italiennes du drame et non au texte de Shakespeare, le choix pour cette œuvre particulière le relie, de façon détournée, à la tradition littéraire et musicale européenne. S’il refuse, par ce biais, le « modernisme » des avant-gardes, il n’échappera pas, dans l’après-coup – la date de création de l’opéra en 1922 est aussi très symboliquement celle de la marche sur Rome et la prise de pouvoir par Mussolini –, à une lecture nationaliste de l’opéra par un pouvoir étatique fasciste.This article analyses Riccardo Zandonai’s Giulietta e Romeo as a reading of Shakespeare’s tragedy through the double perspective of the eyes of the composer, immersed in the European literary and musical tradition, and those of the public and of the critics in the historical context of widespread nationalism and rising fascism. If nothing in the opera hints at the antagonistic forces at work, the paratext, letters and newspaper articles, provides significant details. If the composer seeks his Italian audience’s approval by referring to the medieval Italian sources of the story and not to Shakespeare’s play, this choice indirectly links him in a roundabout way to the European literary and

  14. Immigration(s et accès aux soins en Guyane Immigration(s and access to health care in French Guyana

    Directory of Open Access Journals (Sweden)

    Estelle Carde

    2012-11-01

    Full Text Available L’immigration en Guyane est plurielle. Aux migrants caribéens que la précarité et les violences politiques ont chassés de chez eux se mêlent des migrants partis de France métropolitaine pour goûter à l’exotisme de cette société française sise en Amérique du Sud. Cette pluralité se retrouve lorsque les premiers, usagers étrangers du système de soins, rencontrent des professionnels qui, bien que français, sont soit autochtones, soit eux-mêmes migrants. Ces usagers étrangers sont parfois victimes de discriminations opérées par des professionnels autochtones qui les suspectent de venir profiter indûment du système de soins local. Si ces discriminations ont également cours ailleurs en France, elles sont exacerbées en Guyane par l’importance des flux migratoires et des difficultés socio-économiques. Une autre figure de l’accès aux soins en contexte d’immigration, plus spécifique à la Guyane, est celle de professionnels migrants qui attribuent à certains de leurs usagers étrangers, au nom de leur identité ethnique, une autochtonie que ne leur reconnaît pas la loi. Enfin, les enjeux de l’accès aux soins en contexte d’immigration s’articulent à l’ensemble des rapports sociaux inégalitaires qui traversent la société guyanaise.Immigration in French Guyana is plural. Caribbean migrants, driven away by poverty and political violence, mix with migrants who left metropolitan France to taste the exotism of this French society in South America. This plurality shapes access to health care, since foreign users meet French professionals who are either native or migrants. These foreigners may be victims of discrimination on the part of native professionals who suspect them of taking advantage of the local health care system. Whereas such discrimination exists elsewhere in France, the situation seems exacerbated in French Guyana by the importance of the migratory flows and socioeconomic difficulties. Migrant

  15. Analyse des statistiques de pêche aux engins dans le bassin du Rhône. Deuxième partie : étude des captures

    Directory of Open Access Journals (Sweden)

    CHANGEUX T.

    1993-07-01

    Full Text Available En confrontant les captures déclarées et les autorisations délivrées sur le Rhône et la Saône en 1988 et 1989, on estime pour ces deux années les prélèvements de la pêche aux engins à 238 t/an et 273 t/an. Les captures sont essentiellement constituées de grands cyprinidés (Abramis brama, Blicca bjoerkna, Rutilus rutilus et Chondrostoma nasus et de poissons amphihalins comme les muges (Liza ramada en majorité ou l'anguille (Anguilla anguilla. La pêche professionnelle fluviale représente en moyenne 72 % des captures. Pour certaines espèces comme les aloses (Alosa fallax en majorité, le brochet (Esox lucius, le sandre (Stizostedion lucioperca et le poisson-chat (ictalurus mêlas, les pêcheurs amateurs aux engins et filets prélèvent des quantités comparables à celles des professionnels. De plus, les amateurs sont majoritaires dans les productions de la Saône amont. La biomasse totale des captures du Rhône deltaïque arrive en seconde position derrière celle de la Saône aval, située au centre du bassin. Ce secteur apparaît comme une zone de première importance pour la pratique de la pêche aux engins strictement fluviale en France. Les captures déclarées suivent un rythme saisonnier en relation avec le cycle de l'effort de pêche mis en évidence dans la première partie de l'article (CHANGEUX et ZYLBERBLAT, ce numéro. Les aloses sont capturées pendant la fermeture des autres pêches, au mois de mai. Les muges sont capturés pendant la saison "froide" et la friture de petits cyprinidés (Alburnus alburnus, en majorité pendant la "saison chaude". Dans la Saône aval, l'analyse des Captures par Unité d'Effort (CPUE valide la distinction des métiers définis dans la première partie de l'article. L'utilisation des CPUE est envisagée pour suivre les stocks des principales captures du secteur.

  16. Combining histology, stable isotope analysis and ZooMS collagen fingerprinting to investigate the taphonomic history and dietary behaviour of extinct giant tortoises from the Mare aux Songes deposit on Mauritius

    NARCIS (Netherlands)

    L.G. van der Sluis; H.I. Hollund; M. Buckley; P.G.B. de Louw; K.F. Rijsdijk; H. Kars

    2014-01-01

    Taphonomic research of bones can provide additional insight into a site's formation and development, the burial environment and ongoing post-mortem processes. A total of 30 tortoise (Cylindraspis) femur bone samples from the Mare aux Songes site (Mauritius) were studied histologically, assessing par

  17. Developpement d'une plateforme de calcul d'equilibres chimiques complexes et adaptation aux problemes electrochimiques et d'equilibres contraints

    Science.gov (United States)

    Neron, Alex

    Avec l'arrivée de l'environnement comme enjeu mondial, le secteur de l'efficacité énergétique prend une place de plus en plus importante pour les entreprises autant au niveau économique que pour l'image de la compagnie. Par le fait même, le domaine des technologies de l'énergie est un créneau de recherche dont les projets en cours se multiplient. D'ailleurs, un des problèmes qui peut survenir fréquemment dans certaines entreprises est d'aller mesurer la composition des matériaux dans des conditions difficiles d'accès. C'est le cas par exemple de l'électrolyse de l'aluminium qui se réalise à des températures très élevées. Pour pallier à ce problème, il faut créer et valider des modèles mathématiques qui vont calculer la composition et les propriétés à l'équilibre du système chimique. Ainsi, l'objectif global du projet de recherche est de développer un outil de calcul d'équilibres chimiques complexes (plusieurs réactions et plusieurs phases) et l'adapter aux problèmes électrochimiques et d'équilibres contraints. Plus spécifiquement, la plateforme de calcul doit tenir compte de la variation de température due à un gain ou une perte en énergie du système. Elle doit aussi considérer la limitation de l'équilibre due à un taux de réaction et enfin, résoudre les problèmes d'équilibres électrochimiques. Pour y parvenir, les propriétés thermodynamiques telles que l'énergie libre de Gibbs, la fugacité et l'activité sont tout d'abord étudiées pour mieux comprendre les interactions moléculaires qui régissent les équilibres chimiques. Ensuite, un bilan énergétique est inséré à la plateforme de calcul, ce qui permet de calculer la température à laquelle le système est le plus stable en fonction d'une température initiale et d'une quantité d'énergie échangée. Puis, une contrainte cinétique est ajoutée au système afin de calculer les équilibres pseudo-stationnaires en évolution dans le temps. De plus, la

  18. Compatibility problems of canning materials with carbon dioxide at high temperatures; Problemes de comptabilite des materiaux de gainage avec le gaz carbonique aux temperatures elevees

    Energy Technology Data Exchange (ETDEWEB)

    Darras, R.; Loriers, H. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1964-07-01

    comparativement les moins oxydables. Au dessus de 600 C, les nuances stabilisees au niobium, sans addition de molybdene, s'averent les plus recommandables. A partir de 700 C, la nuance 20 Cr - 25 Ni + Nb semble meme s'imposer par rapport a la nuance classique 18 Cr - 10 Ni + Nb, surtout en raison d'une tendance moins accentuee aux penetrations locales d'oxyde. Par ailleurs, l'alliage fer-aluminium a 25 pour cent d'aluminium en poids, presente une resistance a l'oxydation remarquable, tout en permettant une economie appreciable de neutrons, mais sa mise en oeuvre technologique reste delicate. Enfin, des etudes recentes ont permis d'etablir que certains alliages a base de zirconium, renfermant 1 a 4 pour cent de cuivre en poids, pourraient constituer une solution valable jusqu'a des temperatures de l'ordre de 600 C. Ces alliages s'oxydent en effet beaucoup moins rapidement que le zirconium non allie et d'autres alliages classiques, qui avaient ete elimines precedemment pour cette raison. Finalement, parmi les materiaux capables de supporter les conditions physicochimiques auxquelles seraient soumises les gaines d'elements combustibles dans les reacteurs a moyenne temperature, les plus susceptibles d'application immediate seraient les aciers inoxydables austenitiques et les alliages zirconium-cuivre, dont la metallurgie est relativement bien connue. Dans le futur, l'interet pratique des alliages de beryllium et des alliages fer-aluminium devrait croitre, compte tenu des etudes poursuivies en vue de l'amelioration de leurs proprietes mecaniques et de leur mise en oeuvre. (auteurs)

  19. Etude de la qualité des captures de la pêcherie associée aux DCP ancrés. Projet MAGDELESA

    OpenAIRE

    Dromer, Clément; Eugene, Sonia; Régina, Françoise; Reynal, Lionel; Etienne, Monique; Mathieu, Heloïse; Pau, Cedric

    2015-01-01

    La qualité des produits est un élément du développement durable des pêcheries, car elle vise à garantir la fiabilité sanitaire des débarquements et leur valorisation optimale. Dans le cas de la pêche associée aux DCP ancrés, les embarcations non pontées utilisées pour la capture de grands poissons pélagiques ne sont pas de dimension suffisante pour être équipées de moyens de conservation adéquats (règlementaires) des prises. Cette étude permet, à partir d’embarquements en mer, de suivi des pr...

  20. Rôles et actions des groupes dominants dans la ville : des outils aux processus historicisés. Introduction

    Directory of Open Access Journals (Sweden)

    Céline Tellier

    2009-05-01

    Full Text Available Fruit d’une journée d’étude organisée en mars 2008 par le programme de recherche ARC « Les élites dans la ville » de l’Université Libre de Bruxelles, ce numéro spécial regroupe une série d’articles qui s’intéressent aux modes opératoires de la « construction » de l’espace urbain par certains groupes sociaux, appelés ici « dominants ». Par « construction », nous n’entendons pas seulement les aspects matériels mais aussi, si pas davantage, les aspects sociaux et symboliques qui sont mis en œuvr...