Dissertations / Theses on the topic 'MET modèle'
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Couffin, Florent. "Modèle de données de référence et processus de spécialisation pour l'intégration des activités de conception en génie automatique." Cachan, Ecole normale supérieure, 1997. http://www.theses.fr/1997DENS0005.
Full textLacroix, F. "Mesure de la section efficace de production de paires de quarks top dans le canal lepton+tau+jets+met dans l'expérience D0 et interprétation en terme de boson de Higgs chargé." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2008. http://tel.archives-ouvertes.fr/tel-00408058.
Full textl'intercalibration en eta du calorimètre hadronique et avec l'utilisation du détecteur de pied de gerbe central (CPS) dans la définition de l'énergie des jets. La section efficace de production de paires de quark top obtenue est :
sigma=7,32+1,34-1,24(stat)+1,20-1,06(syst)±0,45(lumi) pb
Cette mesure est en accord avec les prédictions du modèle standard et permet de contraindre la présence de nouvelle physique, telle que l'existence d'un boson de Higgs chargé plus léger que le quark top. Une limite d'exclusion a ainsi été obtenue dans le plan (tan beta, mH±) et est présentée dans la dernière partie de ce manuscrit.
Trefan, Laszlo. "Development of empirical models for pork quality." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5761.
Full textKirmanoglu, Hasan. "Esquisse d'un modèle alternatif aux modèles de l'équilibre général-programmables (MEG-P)." Paris 10, 1989. http://www.theses.fr/1989PA100019.
Full textThis 3e cycle thesis aims to elaborate an essay of an alternative model to the computable general equilibrium (CGE) models. The principal reason of the choice of such a subject is due to the fact that CGE models do not permit to examine the economic problems that appear in the form of disequilibrium such that inflation, unemployment in spite of the fact that they constitute an alternative to the traditional models likes input-output and linear programming models. This incapacity results of their theoretical basis, i. E. Walrasian general equilibrium theory, that is not defined for disequilibrium situations. That is why our alternative model is based on disequilibrium theory that provides a more general framework which permits analysing the economic problems mentioned above. The thesis is made of two parts. The first part introduces CGE models after having been analysed the reasons that lead their substitution to the traditional models. The second part presents our model by referring to a critical survey of the disequilibrium theory
Kaddes, Mourad. "Etudes des transactions plates et étendues dans les SGBD temps réels." Thesis, Le Havre, 2013. http://www.theses.fr/2013LEHA0009/document.
Full textThis thesis presents a study of flat and extended model of transactions in real-time DBMS (RTDBMSs). This study is carried in two steps : (i) the first step aims to help designers to describe and compare models of real-time transactions, (ii) the second step allows to complete this study by presenting a stochastic study of RTDBMSs performance using two models of real-time transactions : flat transactions and nested transactions models. In the first step, we introduced the meta-model « MRT-ACTA » that takes into account the transactions and data temporal characteristics and their realtime interactions. « M-RT-ACTA » allows designers defining and comparing new models of real-time transactions. The formal description of « M-RT-ACTA » validates our proposals. In order to complete this work, we have observed that transactions scheduling is an important area in RTDBMSs, so we proposed in the second step a stochastic study of RTDBMS performance. Thus, we have proposed to improve the success ratio of flat transactions with GEDF protocol (generalization of GEDF) and we have adapted this study to nested transactions
De, Clercq Astrid. "In-situ study of the growth, structure and reactivity of Pt-Pd nanoalloys." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4077/document.
Full textThe catalytic properties of metal nanoparticles can be improved by the alloying effect. Nanoalloys homogeneous in size, shape and chemical composition can be prepared with the colloidal synthesis method, with an ordered, random or core-shell chemical structure. Nucleation and growth of colloidal Pt-Pd nanoalloys were studied by transmission electron microscopy (TEM), in standard conditions and in situ with the aid of a graphene oxide liquid cell. The growth kinetics of homogeneous Pt-Pd nanoalloys corresponds to the direct incorporation of the monomers in solution. It was compatible with a process limited by the surface reaction, without coalescence (Lifshitz-Slyozov-Wagner mechanism). On the contrary, coalescence occurs during the growth of pure Pt nanoparticles. The theoretical structure of Pt-Pd nanoalloys is determined by Monte Carlo simulations. The most stable structure corresponds to a Pd surface and Pt subsurface layer, which is stable up to high temperatures. The effect of adsorption of oxidizing or reducing gasses on the shape of pure Pd nanocubes and core-shell Pd@Pt nanocubes is studied in situ by TEM with an environmental cell. The observed changes in a few mbar of oxygen are due to the development of higher index facets. The CO oxidation reaction is used to compare the reactivity of homogeneous Pt-Pd nanoalloys and core-shell Pd@Pt nanocubes with increasing coverage of Pt at the surface. A maximal reactivity is attained for a low coverage. The effect is interpreted by a decrease in adsorption energy of CO, due to electronic effects originating from the lattice mismatch between Pt and Pd and the mixed Pt-Pd bonds
Schulze, Frank. "Meta Modelle - Neue Planungswerkzeuge für Materialflußsysteme." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-233345.
Full textLefèvre, Marie. "Processus unifié pour la personnalisation des activités pédagogiques : méta-modèle, modèles et outils." Phd thesis, Université Claude Bernard - Lyon I, 2009. http://tel.archives-ouvertes.fr/tel-00625465.
Full textCouturier, Jean-François. "Auto-contrôle d'une cellule flexible d'usinage : étude et réalisation du système d'information." Nancy 1, 1991. http://www.theses.fr/1991NAN10138.
Full textBenkiran, Mounir. "Assimilation de données altimétriques dans un modèle de circulation de la Méditerranée aux équations primitives." Toulouse 3, 1997. http://www.theses.fr/1997TOU30023.
Full textUwimana, Jeannine. "Met and unmet palliative care needs for people living with HIV/AIDS in selected areas in Rwanda." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&.
Full textSchulze, Frank. "Meta Modelle - Neue Planungswerkzeuge für Materialflußsysteme." Technische Universität Dresden, 1999. https://tud.qucosa.de/id/qucosa%3A29807.
Full textMcGaul, Karen Yvonne. "On the Galois module structure of units in met acyclic extensions." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/5186/.
Full textGunupudi, Vandana Tate Stephen R. "Exploring trusted platform module capabilities a theoretical and experimental study /." [Denton, Tex.] : University of North Texas, 2008. http://digital.library.unt.edu/permalink/meta-dc-6101.
Full textAouf, Lotfi. "Un modèle d'évolution de la houle sur une pente : développement et exploitations." Aix-Marseille 2, 1996. http://www.theses.fr/1996AIX2A001.
Full textJan, Francois. "Vers un modèle intégrateur de la création de valeur par les acheteurs." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM2005.
Full textModification of the environment and the rapidly changing business world have forced companies to reorganize their services. In this context the purchasing function becomes an administrative function to a strategic function, impacting the performance of the company and its ability to create value directly. This thesis aims to analyze the value creation of the purchasing function by focusing on the role of the buyer. Our research is based on the analysis of the transformation of a purchasing function within the framework of a research contract in an international food company. The analytical methodology is qualitative, based on the use of Nvivo10 Lexical analysis software. They were put in perspective with the eyes of relevant themes from the case theoretical frameworks. Research shows that the buyer can both create value through the actions of productivity, and entrepreneurial activities that foster the development of sales. The results conceptualize the buyer and highlight the need for the buyer to hold, in addition to technical skills, Meta-competencies that will seize the opportunities of the ecosystem to transform them into marketable products or services. These Meta-competencies differentiate means employees and effective contributors; they can support the technical skills and acquire new ones. They attach to the behaviors and personal skills and are related to the personality of the individual. Finally, the thesis proposes an integrative skills model of the buyer, which accounts for the preponderance of Meta-skills as the basis of the ability of the buyer to create value
Tandeo, Pierre. "Modélisation spatio-temporelle d’une variable quantitative à partir de données multi-sources : Application à la température de surface des océans." Rennes, Agrocampus Ouest, 2010. https://tel.archives-ouvertes.fr/tel-00582679.
Full textIn this thesis, an important oceanographic variable for the monitoring of the climate is studied: the sea surface temperature. At the global level, this variable is observed along the ocean by several remote sensed sources. In order to treat all this information, statistical methods are used to summarize our variable of interest in global daily map. For that purpose, a state-space linear model with Gaussian error is suggested. We begin to introduce this model on data resulting from having an irregular sampling. Then, we work on the estimation of the parameters. This is based on the combination of the method of moments and the maximum likelihood estimates, with the study of the EM algorithm and the Kalman recursions. Finally, this methodology is applied to estimate the variance of errors and the temporal correlation parameter to the Atlantic ocean. We add the spatial component and propose a separable second order structure, based on the product of a temporal covariance and a spatial anisotropic covariance. According to usual geostatistical methods, the parameters of this covariance are estimated on the Atlantic ocean and form a relevant atlas for the oceanographers. Finally, we show that the contribution of the spatial information increases the predictive behaviour of the model
Londt, Marcel P. "Management of domestic violence: risk-based assessment and intervention guidelines with perpetrators of intimate violence." Thesis, University of the Western Cape, 2004. http://etd.uwc.ac.za/index.php?module=etd&.
Full textSavina, Marie. "Modélisation écologique des populations de palourdes roses (Paphia rhomboi͏̈des) et d'amandes de mer (Glycymeris glycymeris) en Manche." Aix-Marseille 2, 2004. http://www.theses.fr/2004AIX22064.
Full textNoubissi, Justin-Hervé. "Modélisation et simulation spatio-temporelles de systèmes dynamiques complexes avec application en épidémiologie : cas du paludisme." Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS281.
Full textStomping out malaria remains a big challenge for computer scientists, mathematicians, epidemiologists, entomologists, medicine doctors and many others. Their approaches range from the cure of the patients to the total disappearance of the disease. However, the collaboration, not always efficient between all these scientists leads to the setting up of incomplete prototypes or to an under-exploitation of the results obtained. Environmental and climatic factors are part of these elements that are generally omitted by computer scientists and mathematicians in their modeling of the dynamic of the disease transmission. The tropical countries most affected by the disease are also mostly underdeveloped or developing countries and therefore, statistical data are often lacking or difficult to access. The populations are constantly in motion over ecosystems with different environmental and climatic conditions from one region to another. In this thesis, we propose a model that integrates migratory, spatial and temporal elements, while ensuring the stability conditions in the mathematical sense. We present the disease, study existing approaches and present their limitations in our context, and then propose three types of models that we compare: a meta-population model without consideration of climatic factors, a meta-populations with consideration of climatic factors during the human-mosquito contact and a meta-populations model with consideration of climatic factors throughout the evolutionary process of the mosquito ; This last appears to be the most realistic
SOUZA, Cléclio Feitosa de. "Modelling and Integrating Formal Models: from Test Cases and Requirements Models." Universidade Federal de Pernambuco, 2007. https://repositorio.ufpe.br/handle/123456789/2633.
Full textA especificação formal de um sistema ou seu modelo formal é uma forma abstrata de representar suas propriedades (características). Métodos formais é um ramo da Engenharia de Software com foco no desenvolvimento de sistemas tendo uma especificação formal do mesmo como ponto de partida. Inicialmente, as vantagens de usar notações abstratas antes da implementação do sistema estavam apenas relacionadas a um melhor entendimento do problema. Depois, tornou-se evidente que o uso de notações formais abstratas combinadas com técnicas de refinamentos de modelos reduzem o tempo de desenvolvimento e aumentam a qualidade do produto de sistema. A fase de testes é positivamente influenciada pelo uso de métodos formais. Pesquisas têm sido desenvolvidas para melhorar a qualidade do sistema usando modelos formais e casos de teste. Uma vez verificadas as propriedades do sistema através de uma investigação dos modelos formais, é possível gerar casos de testes confiáveis do sistema que serão colocados em ação para verificar a implementação do sistema posteriormente. O campo de pesquisa que explora métodos formais aplicados com testes de software é chamada de Testes Baseados em Modelos, ou simplesmente MBT, do inglês Model-Based Testing. Porém, há situações onde não é possível possuir o modelo abstrato definido a priori. Para superar tal restrição outras técnicas surgiram para sintetizar um modelo abstrato seguindo apenas execuções do sistema. As execuções de um sistema contêm comportamentos necessários para construir um modelo abstrato desse sistema. Na literatura atual, tais técnicas usadas para construir representações abstratas seguindo execuções do sistema são chamadas de Anti-Model- Based Testing ou simplesmented Anti-MBT. Então, depois de construir um modelo abstrato, técnicas de verificação de modelos e geração de casos de teste seguindo modelos formais podem ser aplicadas normalmente. O propósito desse trabalho é dar suporte a algumas técnicas de MBT usadas no contexto da Motorola (CIn/BTC). Em tais técnicas, as especificações usadas para gerar casos de testes são geralmente incompletas, inconsistentes, e às vezes não existem. Portanto, usando casos de testes reais do sistema é possível criar novas especificações e atualizar especificações originais do sistema, e posteriormente gerar novos casos de teste usando comportamentos válidos do sistema. Um outro problema detectado em nosso contexto é a distância existente entre as representações abstratas e reais. Um caso de teste abstrato, por exemplo, é útil em técnicas formais, mas não é possível executar um caso de teste diretamente no sistema. Dessa forma, para executar (manualmente ou automaticamente) os casos de teste gerados pelas técnicas de MBT é necessário primeiro traduzi-los em uma representação real. Como resultado desse trabalho nós desenvolvemos técnicas formais de modelagem do comportamento do sistema usando casos de teste. Os resultados das técnicas de modelagem são modelos formais especificados nos formalismos de LTS ou CSP. Além disso, nós definimos uma técnica de unificação que une modelos formais gerados a partir de diferentes artefatos do sistema (requisitos e casos de teste). O resultado da técnica de unificação é um completo e unificado modelo do sistema, que contém informações providas de diferentes artefatos. Nós também definimos uma técnica para traduzir casos de teste abstratos em representações reais. Os casos de teste reais gerados por nossa técnica de tradução são usados no contexto do time de automação de testes da Motorola, onde esse trabalho está inserido. Finalmente, nós automatizamos as técnicas desenvolvidas usando linguagens de programação e especificações formais. O resultado é a ferramenta TCRev que é capaz de modelar, unificar e traduzir modelos do sistema. A ferramenta TCRev interage com o outras ferramentas externas, tais como FDR e FDR Explorer. Todos os resultados foram validados em estudos de casos reais executados no contexto da Motorola. Nessa dissertação nós apresentamos um destes estudo de casos
Gonzato, Jean-Christophe. "Modélisation des scènes océaniques." Bordeaux 1, 1999. http://www.theses.fr/1999BOR10639.
Full textArzel, Olivier. "Mécanismes de variabilité climatique interdécennale dans des modèles idéalisés." Brest, 2004. http://www.theses.fr/2004BRES2008.
Full textLiu, Yang. "Automatic calibration of numerical models using meta-models." Thesis, University of Exeter, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430566.
Full textPanetto, Hervé. "Meta-modèles et modèles pour l'intégration et l'interopérabilité des applications d'entreprises de production." Habilitation à diriger des recherches, Université Henri Poincaré - Nancy I, 2006. http://tel.archives-ouvertes.fr/tel-00119423.
Full textPlus récemment, au cours de la dernière décennie, une nouvelle approche d'ingénierie logicielle a été élaborée : l'ingénierie dirigée par les modèles. Dans cette nouvelle approche, les modèles occupent une place de premier plan parmi les artefacts d'ingénierie des systèmes. En effet, ils doivent être suffisamment précis afin de pouvoir être interprétés ou transformés par des outils logiciels, tout en étant mis en correspondance avec les démarches d'ingénierie système. Le rôle central des modèles dans le développement des capacités d'interopérabilité participe notablement à cette qualité, car les processus d'ingénierie de l'interopérabilité des applications sont basés sur des flux de modèles.
Ce mémoire d'Habilitation à Diriger des Recherches est centré sur l'étude des modèles en vue de l'interopérabilité des systèmes, et plus particulièrement des systèmes d'entreprises, centrée sur la représentation des produits. Pour contribuer à la fiabilisation des modèles d'entreprise et de leur interrelations pour l'intégration forte des applications, le projet de recherche proposé dans ce mémoire a pour objectif, dans un contexte d'ingénierie système appliqué aux systèmes de systèmes, de définir, d'étendre et de formaliser les processus de modélisation des systèmes d'entreprise en tenant compte des connaissances, généralement non explicites, des acteurs de ces systèmes. Cette preuve de concept relatif à la formalisation de la connaissance des modèles se base sur la définition d'ontologies, ainsi que la mise en correspondance, la transformation et l'échange de modèles, permettant l'intégration des applications d'entreprise et assurant ainsi des flux d'informations cohérents entre tous les acteurs. Ils nécessitent ainsi de rendre explicite la connaissance tacite des modélisateurs (et opérateurs) sur les processus (et donc les modèles) dont ils sont responsables ou auteurs.
Kalliomäki, Anna. "Phenomenological aspects of four-neutrino models." Helsinki : University of Helsinki, 2003. http://ethesis.helsinki.fi/julkaisut/mat/fysik/vk/kalliomaki/.
Full textFernandes, Muritiba Albert Einstein <1983>. "Algorithms and Models For Combinatorial Optimization Problems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amsdottorato.unibo.it/2897/.
Full textFulci, Roberta <1982>. "Refined Gelfand models for some finite complex reflection groups." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3719/.
Full textPaillet, Jérôme. "Eau modale et ventilation océanique en Atlantique nord-est." Brest, 1996. http://www.theses.fr/1996BRES2004.
Full textSammari, Hedia. "Modèle de géoïde marin dans la mer Égée par altimétrie satellitaire." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/25986/25986.pdf.
Full textSammari, Hédia. "Modèle de géoide marin dans la mer Égée par altimétrie satellitaire." Master's thesis, Université Laval, 2009. http://hdl.handle.net/20.500.11794/20511.
Full textCasado, Lopez Alberto. "Simulation du climat en Méditerranée dans un modèle couplé régional." Paris 6, 2011. http://www.theses.fr/2011PA066699.
Full textAloïsi, Jean-Claude. "Sur un modèle de sédimentation deltaique : contribution à la connaissance des marges passives." Perpignan, 1986. http://www.theses.fr/1986PERP0001.
Full textKane, Abdou. "Assimilation de données in situ et satellitaires dans le modèle de biogéochimie marine PISCES." Versailles-St Quentin en Yvelines, 2010. http://www.theses.fr/2010VERS0017.
Full textPhytoplankton (microscopic algae in suspension) in the ocean plays an important role in the climate since it regulates the concentration of CO2 in the atmosphere using the dissolved CO2 in surface water for photosynthesis. This biological activity induces dissolution of atmospheric CO2 in the ocean. This process called "oceanic biological pump" is is represented in numerical models of marine biogeochemistry. Coupled with a model of ocean circulation, a model of marine biogeochemistry as PISCES, used at IPSL, allows to better understand and quantify air-sea flux of CO2 and to study the role of marine biology in the climate change in coming decades. However, the species diversity of phytoplankton, the complexity of physiological processes involved and the lack of available measures require the use of coarse and uncertain parameterizations in global models of marine biogeochemistry, which severely limits the accuracy of simulations. Data assimilation which consists of combining objectively a model and observations to make the best possible compromise provides a rigorous framework to overcome these shortcomings. The objective of this thesis is to develop a method of assimilation of biogeochemical in situ and satellite data to improve the model PISCES. The variational method which consists to adjust iteratively the model parameters to minimize a distance to the observations was adopted, using the YAO software, developed at IPSL for the adjoint coding. A simultaneous assimilation of several contrasted oceanographic stations measurements (in terms biogeochemical) has been implemented to estimate 45 physiological parameters of the model PISCES. Using these optimized parameters to make long simulations (50 to 500 years) has allowed to demonstrate a significant improvement in chlorophyll concentration compared to the standard model, both for vertical profiles which resemble those measured at JGOFS stations and for global maps when compared to those provided by the SeaWiFS satellite. In the last part of this thesis, we show that it is possible to assimilate the satellite surface chlorophyll concentration rather than in situ vertical profiles, but to do this the satellite information on the concentration chlorophyll must supplement by climatological information on other important biogeochemical tracers such as nitrates and silicates. The discussion on the contribution of these new data types is the conclusion of this thesis
Le, Fur Jean. "Modélisation numérique des transferts de radioéléments artificiels en mer de Manche : processus hydrodynamiques, biologiques et sédimentaires." Lyon 1, 1989. http://www.theses.fr/1989LYO10129.
Full textCarre, Catherine. "Transfert de radionucléides dans les organismes vivants : analyse de données et modélisation : application au domaine de la Manche." Lyon 1, 1996. http://www.theses.fr/1996LYO10238.
Full textThompson, Russell Martin. "Nitrosylmetalloporphyrin complexes as models for cured meat pigments." Thesis, University of Surrey, 1988. http://epubs.surrey.ac.uk/848117/.
Full textHusna, Husain Dantu Ram. "Models to combat email spam botnets and unwanted phone calls." [Denton, Tex.] : University of North Texas, 2008. http://digital.library.unt.edu/permalink/meta-dc-6095.
Full textHoch, Thierry. "Modélisation du cycle biogéochimique des éléments limitant la production biologique en Manche (N, P, SI)." Paris 7, 1995. http://www.theses.fr/1995PA077121.
Full textLafon, Christine. "Étude des conditions de déferlement en zone côtière méditerranéenne." Toulon, 2004. http://www.theses.fr/2004TOUL0013.
Full textThe ocean surface is a permanent location of exchanges between ocean and atmosphere, mostly in breaking area. This requires studies of sea state, defined by the wave field properties and the surface resulting of its breaking. The aim of this study was to understand the pro cesses occurring at the interface in coastal zone, to better understand the parameters that control them, and ta introduce a whitecap model in a wave numerical model. This work is essentially based on results obtained during two experimental campaigns that took place in NIediterranean coastal areas (FETCH and EMMA). The waves analysis conduct to determine a specific relation between non dimensional parameters (significant height and peak frequency) following the classical formalism JONSWAP. Study of wind stress at the interface presents an influence of wind speed and f wave age. Results on waves and wind stress show a reasonable agrement with models found n literature. We show that the whitecap coverage depends on classical meteorological parameters (such as wind speed and friction velocity) but also on oceanic parameters (such M wave ge and dimensionless energy). Friction velocity weil represents variations of breaking in coMtal zone when it is measured and not obtained from wind speed. The whole sea state events are better scale with wave age. Finally, a numerical wave model has been adapt to our experimental site (from precedents results) to represent whitecap coverage in the Toulon-Hyères area. From a spatially and temporally homogeneous wind input, a few experimental events has been modeled
Marne, Bertrand. "Modèles et outils pour la conception de jeux sérieux : une approche meta-design." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066536/document.
Full textThis thesis in computer science is in the field of Serious Games (SGs) for learning, and focuses on designand authoring tools for adaptation.SGs are Technology Enhanced Learning systems whose design requires collaboration of different types ofexperts among which teachers.To help the initial multi-expertise design of the SGs that mix fun and learning, we propose a conceptualframework named the 6 Facets of the Design of SGs, which helps stakeholders to collaborate at everystage of design. The 6 Facets are enhanced by the design pattern (Dps) library we offer, which builds avocabulary promoting participatory design.To enable teachers to co-design SGs during the use stage, we extend the participatory design approach tometa-design. We propose a model and an authoring tool that help teachers to adapt SGs to their specificteaching contexts.MoPPLiq is a model, both formal and visual, representing the several stages of an SG. It is meant to beexplicit and adaptable by teachers. APPLiq is an authoring tool meant to adapt instances of MoPPLiqmodels, and automatically check and compensate their inconsistencies.Our conceptual tools (6 Facets and DPs) and software tools (MoPPLiq and APPLiq) were tested whiledesigning SGs with public and private partners and with SGs used by teachers
Roullet, Guillaume. "Equilibres en sel de l'océan mondial dans un modèle de circulation générale à surface libre." Paris 6, 2000. http://www.theses.fr/2000PA066537.
Full textKeita, Capitolin Yasmina. "Les Temps de la protection juridique de l'environnement d'une mer régionale : modèle d'éco-protection de l'aire Caraïbe." Antilles-Guyane, 2006. http://www.theses.fr/2006AGUY0165.
Full textThe legal protection of marine environment developed through universal means before being resolved by a regional approach. The regional area of the Caribbean, made up of the marine milieu of the Gulf of Mexico, the Caribbean Sea and the adjacent zones of the Atlantic Ocean,validates this evolution, to the measure of the legal instruments which mark it. Of course, this evolution has not been spared by constraints, and the rhythm of priorities is definitely supported in the search for a protection, the only and necessary source of which remains the legal norm. It nevertheless remains that these peak moments mainly dedicated to the determination of the issue deserve a support adequate to the issue at stake. As a matter of fact, the protection brought forward by the international community must simultaneously be coordinated by structural executive means and necessary accompanying process. Within the scope of the determination of the issue,efforts are deployed in order to achieve the protection without loosing sight of the aim to be achieved. For the neighbouring States, as well as the international communiy, the objective of protection requires coherence and coordination in the long term. This dual movement together makes up a regional eco-protection model
Rocha, Fabio Carlos da. "Análise de domínios reforçados através da combinação MEC/MEF considerando modelos de aderência." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-08022010-091447/.
Full textIn this work it is presented a coupling between the Boundary Element Method and the Finite Element Method for two-dimensional elastostatic analysis of reinforced bodies considering adherence. The Boundary Element is used to model the matrix while the reinforcement is modeled by the Finite Element. Due to the inherent singularities present in Boundary Element formulations the quadrature rules, used to develop the necessary integrals may present undesired errors. In this sense the behavior of this integration error is studied and a simple way to control it is proposed along the work. Regarding the coupling formulation a third degree polynomial is adopted to describe the displacements and rotations of the reinforcement, while a linear polynomial is used to describe the contact forces among the continuum and the reinforcement. Adherence (or sliding) models are presented and implemented in the computer code. A linear relation between relative displacement and transmitted force is adopted. From difference of approximation regarding contact forces and displacements a rectangular matrix arrises from the BEM/FEM coupling. The additional equations are eliminated by the use of a least square method based on the multiplication of transpose matrices. Examples are shown to demonstrate the good behavior of error control applied on gaussian quadratures regarding Boundary Element simulations for coupled or not situations, considering or not adherence models.
Célie, Sabrina. "Détermination des zones d'implantation d'éoliennes offshore flottantes en zone côtière Méditerranéenne à partir d'un modèle atmosphérique." Toulon, 2007. http://www.theses.fr/2007TOUL0004.
Full textThe part of the renewable energies in the French electric production should increase in a important \vay in the years to corne, encouraged in it by the policy of the European Union in protection of the environment. The most easily exploitable kind of renewable energy most easily exploitable in term of profitability and technological solutions is supplied by windmills. The maritime zones have the advantage to offer a better wind potential even for a higher cost but are rather quickly limited by the bathymetry. The floating offshore windmills will allow to increase the distances from the coast by pushing away the deep limit, with the advantage to offer a better exposure to the wind, to allow the exploitation of more powerful! wind fields and to decrease the visual impact. A climatological study is led over the last twenty years (from the data ECMWF and from the meteorological station of Marignane), to know the occurrence of the various typical meteorological situations of the Mediterranean coast (mistral, East wind. West wind, breeze of earth and sea breeze, no wind). The meteorological modelling w:ith mesoscale model RAMS 43 is used to obtain a better understanding of the climatology of the Mediterranean region and the detailed spatiotemporal structure of the wind fields in the troposphere. The attention is focus on the 10 m levels (for the interaction with the waves field) and 100 m levels (height foreseen by the axis of windmills). The modelling of the wind field in the zone of study presents various problems due to the presence of coastal zone and a very damaged topography. An adaptation of the model to the site is made by entering in the model a precise topography and vegetation. To validate the simulations, the results are compared with the experimental data measured during the campaigns of FETCH (1998), Map (1999) and DISCOUNT (2001). Then, the atmospheric modelling is used to estimate the wind potential of the region Provence-Alpes-Cote-d'Azur. Beforehand an estimation of the wind resources of the region from the parameters of Weibull is established. Then the association of the statistical analysis and the modelling completes these results by determining the fields of annual and monthly average wind potential as well as the power density of the zone. From this, the most profitable places for the exploitation of floating offshore windmills were selected
Larsson, Katarina. "Utveckling av modell för kvalitetsstyrning av polyetenreaktor." Thesis, University West, Department of Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-377.
Full textGalli, Laura <1981>. "Combinatorial and Robust Optimisation Models and Algorithms for Railway Applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1514/.
Full textSasal, Pierre. "Diversité parasitaire et biologie de la conservation : le modèle parasites de poissons - espaces marins protégés." Aix-Marseille 1, 1997. http://www.theses.fr/1997AIX11044.
Full textEscamilla, de los Santos José Guadalupe. "Shood : un modèle méta-circulaire de représentation de connaissances." Grenoble INPG, 1993. http://tel.archives-ouvertes.fr/tel-00005126.
Full text林志立 and Chi-lap Lam. "Analysis of inventory systems with demands met either from inventory or by special deliveries." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B3120868X.
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