Academic literature on the topic 'Méthode de base réduite'
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Journal articles on the topic "Méthode de base réduite"
Kabano, Alphonse. "Le destin de la théorie syntaxique de Lucien Tesnière (1893–1954)." Historiographia Linguistica 27, no. 1 (May 29, 2000): 103–26. http://dx.doi.org/10.1075/hl.27.1.07kab.
Full textBatawui, K., R. De Deken, P. Bastiaensen, A. Napala, and Guy Hendrickx. "Application séquentielle de lambda-cyhalothrine sur le bétail par la méthode ElectrodynTM. Résultats obtenus au Togo dans le cadre de la lutte contre la trypanosomose animale africaine." Revue d’élevage et de médecine vétérinaire des pays tropicaux 55, no. 3 (March 1, 2002): 189. http://dx.doi.org/10.19182/remvt.9823.
Full textManuel, DG, TH Ho, S. Harper, GM Anderson, J. Lynch, and LC Rosella. "Modélisation de l'efficacité de la prévention pour estimer le point de bascule de l'équité : quelle couverture des interventions préventives individuelles permet de réduire les effets des disparités socioéconomiques relatives au risque de diabète?" Maladies chroniques et blessures au Canada 34, no. 2/3 (July 2014): 101–9. http://dx.doi.org/10.24095/hpcdp.34.2/3.04f.
Full textSarson, Leah. "La spécialisation disciplinaire et professionnelle basée sur le genre en Relations internationales." Études internationales 48, no. 1 (December 14, 2017): 83–104. http://dx.doi.org/10.7202/1042354ar.
Full textBoukari, Y., G. Matejka, B. Parinet, and P. Simon. "La mise à l'équilibre des eaux tropicales : conséquences sur la déferrisation." Revue des sciences de l'eau 1, no. 4 (April 12, 2005): 339–53. http://dx.doi.org/10.7202/705016ar.
Full textGLOAGUEN, M., N. LE FLOC’H, and J. VAN MILGEN. "Couverture des besoins en acides aminés chez le porcelet alimenté avec des régimes à basse teneur en protéines." INRAE Productions Animales 26, no. 3 (June 18, 2013): 277–88. http://dx.doi.org/10.20870/productions-animales.2013.26.3.3157.
Full textRouiller, Fabrice. "Représentations linguistiques des Nigériens et des Nigériennes en fonction de leur âge." Cahiers du Centre de Linguistique et des Sciences du Langage, no. 15 (April 9, 2022): 55–66. http://dx.doi.org/10.26034/la.cdclsl.2004.1626.
Full textDumont, Béatrice. "L'efficacité du Contrôle Communautaire des Concentrations : une approche par la méthode événementielle." Recherches économiques de Louvain 70, no. 3 (2004): 317–40. http://dx.doi.org/10.1017/s0770451800010770.
Full textChouaf, Seloua, and Youcef Smara. "Méthode de sélection des bandes à base de l'Analyse en Composantes Indépendantes appliquée aux images hyperspectrales de télédétection." Revue Française de Photogrammétrie et de Télédétection, no. 204 (April 8, 2014): 57–62. http://dx.doi.org/10.52638/rfpt.2013.22.
Full textNabeneza, Serge, Vincent Porphyre, and Fabrice Davrieux. "Caractérisation des miels de l’océan Indien par spectrométrie proche infrarouge : étude de faisabilité." Revue d’élevage et de médecine vétérinaire des pays tropicaux 67, no. 3 (June 27, 2015): 130. http://dx.doi.org/10.19182/remvt.10181.
Full textDissertations / Theses on the topic "Méthode de base réduite"
Veys, Stéphane. "Un Framework de calcul pour la méthode des bases réduites : applications à des problèmes non-linéaire multi-physiques." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENM069/document.
Full textToday, in many fields of applications, more and more engineering problems require to have an accurate and efficient evaluation of quantities of interest.Often, these quantities depend on a partial differential equation (PDE) parameterized solution -- physical or geometrical -- are the model inputs and the quantities of interest -- average values -- are the outputs.The order reduction techniques, including reduced basis method which is the method used throughout this work, can meet these demands.In this thesis, we focus on the establishment of a framework in C ++ supporting parallel computing, which applies the reduced basis method to nonlinear multiphysics problems such as problems with natural convection (fluid-thermal coupling) or the high field resistive magnet modeling (we limit ourselves to thermo-electric coupling) leading to a study on the uncertainty quantification.The reduced basis method naturally relies on an approximation obtained using the finite element discretization of the problem being treated. For this, we use the Feel ++ computation library specialized in PDE resolution.We are also interested by multiscale problems.The particularity of these problems is to manipulate a set of phenomena involving different scales, as this is the case for example when we consider a flow in porous media.The multiscale finite element method allows having a "global" behavior, linked with large scales, of the problem solution without solving it on small scales.We propose a new construction of multiscale finite element basis functions based on the reduced basis method
Soilahoudine, Moindzé. "Optimisation de structures aéronautiques : une nouvelle méthode à fidélité adaptative." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30322.
Full textThe surrogate based optimization method with adaptive enrichment (Efficient Global Optimization type approach) may, in spite of its strengths, be prohibitive in terms of computational cost when applied to large scale problems with several local minima. They require the resolution of a full numerical model for each simulation, which can lead to intractable studies or to simulation times incompatible with the times allotted for the design of a product. This PhD thesis falls within the scope of optimizing expensive simulator codes by using substitution models of the simulator. These substitutions models can be of two types: a metamodel or a reduced order model. We have proposed here a new methodology for global optimization of mechanical systems by coupling adaptive surrogate based optimization methods with the reduced order modeling methods. The surrogate based optimization methods aim to reduce the number of objective function evaluations while the reduced order model methods aim to reduce the dimensionality of a model and thus its computational cost. The objective of the methodology proposed in this thesis is thus to reduce the number of the objective function evaluations while at the same time significantly reducing the computational expense to the resolutions of the full mechanical model. The basic idea of the proposed approach resides in the adaptive construction the metamodel of the objective function. This construction fuses full and reduced order models and thus adapts the model fidelity to the accuracy requirements of the optimization at the current iteration. The efficiency of our proposed algorithms was illustrated on two types of applications: i. a problem of identification of orthotropic elastic constants from full field displacement measurements based on a tensile test on a plate with a hole ii. a problem of stiffness maximization of laminated plates. The results have shown that our methodology provides a significant speed-up in terms of computational cost, compared to the traditional EGO algorithm
Courtier, Vivien. "Réduction de modèle et simplification de l'intégration de loi de comportement pour la prévision de la durée de vie." Phd thesis, Ecole Polytechnique X, 2013. http://pastel.archives-ouvertes.fr/pastel-00854149.
Full textMaineult, Alexis. "Application de la méthode du potentiel spontané à l'hydrogéologie : expérimentation sur modèle réduit d'aquifère." Phd thesis, Université Louis Pasteur - Strasbourg I, 2004. http://tel.archives-ouvertes.fr/tel-00011461.
Full textDes expériences de laboratoire ont donc été menées pour mesurer séparément et indépendamment la signature électrique de l'écoulement d'un fluide homogène, de la diffusion d'un front salin en conditions de fluide stagnant, du transport d'un front de concentration, et des réactions acide-base et redox. La partie principale du dispositif expérimental est un bac rectangulaire de dimensions décimétriques, rempli de sable, connecté hydrauliquement à deux réservoirs indépendants, permettant de générer des écoulements uni ou bi-dimensionnels. Pour mesurer le signal, des électrodes impolarisables au cuivre – sulfate de cuivre, de diamètre réduit, ont été mises au point.
Les résultats démontrent la capacité de la PS pour suivre la progression de fronts de concentration. La réponse électrique à la diffusion est due au potentiel de jonction fluide. La réponse à l'advection est la somme de ce potentiel et de la variation du signal électrocinétique qui résulte des modifications du coefficient de couplage en fonction de la conductivité du fluide (advection de sels) ou du pH (advection d'acide). Lorsque deux fluides se mélangent ou réagissent, la comparaison des courbes de PS dans les différentes zones permet de déterminer l'extension et l'évolution temporelle de la zone de mélange ou de réaction. L'hétérogénéité du milieu, structurelle et chimique, semble aussi jouer un grand rôle.
Bel, Liliane. "Sur la réduction des modèles linéaires : analyse de données en automatique." Paris 11, 1985. http://www.theses.fr/1985PA112306.
Full textTwo state space model reduction methods are studied: aggregation method and the balanced state space representation method. In the case of aggregation a new method of selecting eigenvalues is proposed, which is both geometrical and sequential. Problems of robustness of aggregation are evoked and resolved in some particular cases. The balanced state space representation is approached by means of contralibility and observability degrees. The notion of perturbability degree is introduced. Then we study the application of those two methods to reduced order compensator design. The two methods are finally applied to the system representing the launch booster Ariane flying
Hoareau, Christophe. "Vibrations hydroélastiques de réservoirs élastiques couplés à un fluide interne incompressible à surface libre autour d’un état précontraint." Thesis, Paris, CNAM, 2019. http://www.theses.fr/2019CNAM1241/document.
Full textThis doctoral thesis focuses on the calculation by the finite element method of the dynamic behavior of prestressed elastic tanks containing an internal liquid with a free surface. We consider that the hydrostatic pressure exerted by the incompressible internal fluid on the flexible walls of the tank causes large displacements, thus leading to a geometric non-linear equilibrium state. The change of stiffness related to this prestressed state induces a shift in the resonance frequencies of the coupled linear vibration problem. The main objective of the work is therefore to estimate, through precise and efficient numerical approaches, the influence of geometric nonlinearities on the hydroelastic behavior of the reservoir/internal liquid system around different equilibrium configurations. The methodology developed is carried out in two stages. The first one consists in calculating the non-linear static state by a total Lagrangian finite element approach.The action of the fluid on the structure is modelled here by hydrostatic following forces. The second step is the calculation of linearized coupled vibrations. In particular, an original reduced order model is proposed to limit the calculation costs associated with the estimation of the added mass effect. Finally, various examples are proposed and compared with results from the literature (from numerical simulations or experimental tests) to show the effectiveness and validity of the different numerical approaches developed in this work
Hammond, Janelle K. "Méthodes des bases réduites pour la modélisation de la qualité de l'air urbaine." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1230/document.
Full textThe principal objective of this thesis is the development of low-cost numerical tools for spatial mapping of pollutant concentrations from field observations and advanced deterministic models. With increased pollutant emissions and exposure due to mass urbanization and development worldwide, air quality measurement campaigns and epidemiology studies of the association between air pollution and adverse health effects have become increasingly common. However, as air pollution concentrations are highly variable spatially and temporally, the sensitivity and accuracy of these epidemiology studies is often deteriorated by exposure misclassi cation due to poor estimates of individual exposures. Data assimilation methods incorporate available measurement data and mathematical models to provide improved approximations of the concentration. These methods, when based on an advanced deterministic air quality models (AQMs), could provide spatially-rich small-scale approximations and can enable better estimates of effects and exposures. However, these methods can be computationally expensive. They require repeated solution of the model, which could itself be costly. In this work we investigate a combined reduced basis (RB) data assimilation method for use with advanced AQMs on urban scales. We want to diminish the cost of resolution, using RB arguments, and incorporate measurement data to improve the quality of the solution. We extend the Parameterized-Background Data-Weak (PBDW) method to physically-based AQMs. This method can rapidly estimate "online" pollutant concentrations at urban scale, using available AQMs in a non-intrusive and computationally effcient manner, reducing computation times by factors up to hundreds. We apply this method in case studies representing urban residential pollution of PM2.5, and we study the stability of the method depending on the placement or air quality sensors. Results from the PBDW are compared to the Generalized Empirical Interpolation Method (GEIM) and a standard inverse problem, the adjoint method, in order to measure effciency of the method. This comparison shows possible improvement in precision and great improvement in computation cost with respect to classical methods. We fi nd that the PBDW method shows promise for the real-time reconstruction of a pollution eld in large-scale problems, providing state estimation with approximation error generally under 10% when applied to an imperfect model
Bai, Ruqing. "Numerical modeling of isotropic and composites structures using a shell-based peridynamic method." Thesis, Compiègne, 2019. http://www.theses.fr/2019COMP2482.
Full textThis thesis introduces some new complements and improvments for the Bond-Based Peridynamics theory concerning the numerical modeling of thin structures such as beams and plates, isotropic and multilayer composites subjected to dynamic loading. Our developments have been focused mainly on exploring the possibilities offered by the Peridynamic method, which has been widely applied in various engineering domains where strong or weak discontinuities may occur such as cracks or heterogeneous media. The generalization procedure of the Peridynamics method for the modeling of Timoshenko beam structures and Reissner-Mindlin plate structures respectively with a wide range of thickness to length ratio starting from thick structures to very thin structures is given. And A simplified low velocity impact based on the developed Peridynamic model for Timoshenko beam and ReissnerMindlin plate has been proposed by using a specific contact procedure for the estimation of the impact load. The originality of the present method was the introduction for the first time of two techniques for the alleviation of the shear locking problem which arises in thin beam and plate structures, namely the reduced (or selective) integration method and mixed formulation. The resulting Peridynamic model for Timoshenko beam structures and Reissner-Mindlin plate structures is efficient and does not suffer from any shear locking phenomenon. Besides, the generalization procedure of Peridynamic method for the modeling of fiber-reinforced thin composite structures is introduced. The Peridynamic approach for the modeling of a lamina is firstly validated in the quasi-statics including a crack propagation prediction problems subjected to mechanical loading conditions and then the Peridynamic method was further extended to analyze fiber-reinforced thin composite structures using the fundamental lamina theory. Finally, several applications involving fiber-reinforced thin composite structures and numerical results were validated by comparison to the FEM solution obtained using commercial software or to reference solutions from the literature. In all applications, the Peridynamics shows that results are matching perfectly the reference solutions, which proves its efficiency potentiality especially for crack paths simulation in isotropic and composite structures
Pham, Thi Trang Nhung. "Méthodes numériques pour l'équation de Vlasov réduite." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAD051/document.
Full textMany numerical methods have been developed in order to selve the Vlasov equation, because computing precise simulations in a reasonable time is a real challenge. This equation describes the time evolution of the distribution function of charged particles (electrons/ions), which depends on 3 variables in space, 3 in velocity and time. The main idea of this thesis is to rewrite the Vlasov equation in the form of a hyperbolic system using a semi-discretization of the velocity. This semi-discretization is achieved using the finite element method. The resulting model is called the reduced Vlasov equation. We propose different numerical methods to salve this new model efficiently: finite volume methods, semi-Lagrangian methods and discontinuous Galerkin methods
Moreau, Antoine. "Calcul des propriétés homogénéisées de transfert dans les matériaux poreux par des méthodes de réduction de modèle : Application aux matériaux cimentaires." Thesis, La Rochelle, 2022. http://www.theses.fr/2022LAROS024.
Full textIn this thesis, we manage to combine two existing tools in mechanics: periodic homogenization, and reduced-order modelling, to modelize corrosion of reinforced concrete structures. Indeed, chloride and carbonate diffusion take place their pores and eventually oxydate their steel skeleton. The simulation of this degradation is difficult to afford because of both the material heterogenenity, and its microstructure variability. Periodic homogenization provides a multiscale model which takes care of the first of these issues. Nevertheless, it assumes the existence of a representative elementary volume (REV) of the material at the microscopical scale. I order to afford the microstructure variability, we must solve the equations which arise from periodic homogenization in a reduced time. This motivates the use of model order reduction, and especially the POD. In this work we design geometrical transformations that transport the original homogenization equations on the fluid domain of a unique REV. Indeed, the POD method can’t be directly performed on a variable geometrical space like the material pore network. Secondly, we adapt model order reduction to the Poisson-Boltzmann equation, which is strongly nonlinear, and which rules ionic electro diffusion at the Debye length scale. Finally, we combine these new methods to other existing tools in model order reduction (ITSGM interpolatin, MPS method), in order to couple the micro- and macroscopic components of periodic homogenization
Books on the topic "Méthode de base réduite"
Farid, Georges. Notions grammaticales de base: Les homonymes : méthode pratique et efficace pour résoudre les difficultés orthographiques. [Kanata, Ont.]: G. Farid, 1996.
Find full textFortin, Benoît. Cours d'analyse propositionnelle et grammaticale F : révision de la grammaire française de base: Méthode autodidactique. Élève. Chicoutimi, Qué: Éditions Myrtille, 1993.
Find full textBrandebourger. Sténographie simplifiée, méthode semi-programmée : Système Prévost-Delaunay de base. Foucher, 1994.
Find full textGrosgogeat, Hervé. La Méthode acide-base: Perdre du poids, ralentir le vieillissement, prévenir les maladies. JACOB, 2009.
Find full textGirard, Gabriel. Vrais Principes de la Langue Françoise, Ou, la Parole Réduite en Méthode, Conformément Aux Loix de L'usage: En Seize Discours. Creative Media Partners, LLC, 2018.
Find full textJean-Louis, Jobin, ed. La ponctuation =: Révision de la grammaire française de base : méthode autodidactique = La ponctuation : révision de la grammaire française de base. Éditions Myrtille Inc, 1989.
Find full textPower of Project-Based Learning: Helping Students Develop Important Life Skills. Rowman & Littlefield Publishers, Incorporated, 2016.
Find full textWurdinger, Scott D. Power of Project-Based Learning: Helping Students Develop Important Life Skills. Rowman & Littlefield Publishers, Incorporated, 2016.
Find full textJeu, Enseigner Grâce. 1000 Vocabulaire de Base Illustré J'Apprends À Lire Apprentissage Ecriture Maternelle Cp Niveau 1 : Trilingue Anglais Français Ourdou: Apprendre à Lire Avant de Savoir Parler Montessori Matériel Bebe - Méthode Simple et Rapide Pour 3 6 Ans. Independently Published, 2020.
Find full textBook chapters on the topic "Méthode de base réduite"
Meter, Karl M. Van. "Typologie de base, ensembles flous, et analyse multi-méthode en sciences sociales." In Sociologie et normativité scientifique, 233–65. Presses universitaires du Midi, 1999. http://dx.doi.org/10.4000/books.pumi.14124.
Full textKARBOU, Fatima, Guillaume JAMES, Philippe DURAND, and Abdourrahmane M. ATTO. "Seuils et distances pour la détection de neige avec les séries d’images Sentinel-1." In Détection de changements et analyse des séries temporelles d’images 1, 139–58. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch5.
Full textGARABÍK, Radovan. "Dvojjazyčné prekladové ekvivalenty z paralelného slovensko-francúzskeho korpusu." In Des langues calculables à l'homme incalculable, 53–60. Editions des archives contemporaines, 2021. http://dx.doi.org/10.17184/eac.5262.
Full textPERKO, Gregor, and Patrice Pognan. "Dictionnaire langue maternelle - langue étrangère." In Dictionnaires et apprentissage des langues, 15–24. Editions des archives contemporaines, 2021. http://dx.doi.org/10.17184/eac.4499.
Full textBAUMGARDT, Ursula. "Analyse littéraire et traitement automatique de corpus de littérature orale." In Des langues calculables à l'homme incalculable, 17–26. Editions des archives contemporaines, 2021. http://dx.doi.org/10.17184/eac.5259.
Full textATTO, Abdourrahmane M., Aluísio PINHEIRO, Guillaume GINOLHAC, and Pedro MORETTIN. "Analyse d’ordre fractionnaire et prédiction de trajectoire de cyclones." In Détection de changements et analyse des séries temporelles d’images 1, 159–82. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch6.
Full textGREAVES, Sara. "Entre langue maternelle et langue(s) étrangère(s), une « voix-peau » plurilingue :." In Ecrire entre les langues, 131–44. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.6456.
Full textPEJOSKA-BOUCHEREAU, Frosa. "Enjeux de la délégitimation de la langue macédonienne en contexte plurilingue." In Médier entre langues, cultures et identités : enjeux, outils, stratégies, 71–90. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.5504.
Full textKaboré, Boniface. "L’universel démocratique et ses adaptations socio-culturelles." In The Paideia Archive: Twentieth World Congress of Philosophy, 140–45. Philosophy Documentation Center, 1998. http://dx.doi.org/10.5840/wcp20-paideia199841748.
Full textConference papers on the topic "Méthode de base réduite"
Hadj SaÏd, M., L. Thollon, Y. Godio-Raboutet, J. H. Catherine, C. M. Chossegros, and D. Tardivo. "Modélisation 3D de l’os maxillaire dans l’analyse par éléments finis en implantologie orale : une nouvelle approche utilisant CBCT et anthropométrie." In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603022.
Full textReports on the topic "Méthode de base réduite"
Guide pour les pilules de contraception d'urgence : Introduire et développer l'offre des pilules de contraception d'urgence dans les pays en voie de développement. Population Council, 2009. http://dx.doi.org/10.31899/rh17.1001.
Full textEnquête sur la contraception d'urgence (CU) au niveau des pharmacies. Population Council, 2009. http://dx.doi.org/10.31899/rh17.1000.
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