Academic literature on the topic 'Réduction d'ordre de modèle'
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Journal articles on the topic "Réduction d'ordre de modèle"
Le Bihan, Y., V. Martinage, P. Lessard, and E. Paul. "Influence possible des protozoaires sur le taux de mortalité des bactéries autotrophes nitrifiantes." Revue des sciences de l'eau 14, no. 1 (April 12, 2005): 91–108. http://dx.doi.org/10.7202/705411ar.
Full textKistler, Max. "Réduction fonctionnelle et réduction logique." Philosophiques 27, no. 1 (October 2, 2002): 27–38. http://dx.doi.org/10.7202/004938ar.
Full textHérault, Nicolas. "L’impact de la libéralisation commerciale sur la pauvreté et les inégalités dans les provinces sud-africaines." Économie appliquée 61, no. 3 (2008): 133–56. http://dx.doi.org/10.3406/ecoap.2008.1887.
Full textKim, Jaegwon. "L'émergence, les modèles de réduction et le mental." Philosophiques 27, no. 1 (October 2, 2002): 11–26. http://dx.doi.org/10.7202/004937ar.
Full textGanassali, Stéphane, and Laurence Didellon. "Le transfert comme principe central du parrainage." Recherche et Applications en Marketing (French Edition) 11, no. 1 (March 1996): 37–48. http://dx.doi.org/10.1177/076737019601100103.
Full textOulefki, A., and A. Neveu. "Réduction par amalgame modal d'un modèle thermique." Journal de Physique III 3, no. 2 (February 1993): 303–20. http://dx.doi.org/10.1051/jp3:1993133.
Full textFürstenberger, Nathalie. "La cosmogonie lugonienne : un modèle en quête d'ordre social." America 33, no. 1 (2005): 261–70. http://dx.doi.org/10.3406/ameri.2005.1731.
Full textM’Raoui, Abdelhamid. "Méthode de réduction pour le calcul des paramètres de l’équation caractéristique d’un module photovoltaïque." Journal of Renewable Energies 21, no. 4 (December 31, 2018): 505–14. http://dx.doi.org/10.54966/jreen.v21i4.708.
Full textAZIZAH, Sofyani Nur, Dadang SUNENDAR, and Tri Indri HARDINI. "Développement du modèle d'apprentissage des compétences de réflexion d'ordre supérieur (hots) assisté par google sites pour la compréhension écrite niveau A2." FRANCISOLA 7, no. 2 (April 1, 2022): 107–21. http://dx.doi.org/10.17509/francisola.v7i2.56606.
Full textDufour and Hallin. "Tests non paramétriques optimaux pour le modèle autorégressif d'ordre un." Annales d'Économie et de Statistique, no. 6/7 (1987): 411. http://dx.doi.org/10.2307/20075663.
Full textDissertations / Theses on the topic "Réduction d'ordre de modèle"
Missoffe, Alexia. "Réduction d'ordre de modèle d'un phénomène d'amortissement non-linéaire dans le cadre des microsystèmes." Phd thesis, Ecole Centrale Paris, 2010. http://tel.archives-ouvertes.fr/tel-00552076.
Full textGuillet, Jérôme. "Etude et réduction d'ordre de modèles linéraires structurés : application à la dynamique du véhicule." Phd thesis, Université de Haute Alsace - Mulhouse, 2011. http://tel.archives-ouvertes.fr/tel-00807199.
Full textVentura, Jérôme. "Réduction de modèle en convection forcée par des méthodes d'identification." Phd thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2010. http://www.theses.fr/2010ESMA0013.
Full textMost engineering processes dealing with aerothermics involve numerical simulations (CFD) which need to take transient phenomena into account to be realistic. Low order models and responses surfaces offer the engineer an alternative to the high costs associated with CFD processes, providing him with surrogates for the outputs of his interest. This work is devoted to extend the Modal Identification Method (MIM) in the field of fluid dynamics. MIM is a low order modelling techniques, based on the minimization of the discrepancy between a usually large reference model, and a low order model. It solves an optimization problem whose variables are the low order model parameters. Low order models are built for several kinds of turbulent flows. The circular cylinder in a crossflow provides us with several test cases. We cope with steady flows or unsteady ones, be them in forced convection or isothermal cases. Those models are able to produce outputs as different as velocity and temperature fields, heat fluxes. . . The compressible flow around a wing profile is also considered to investigate the sampling effect. Those models give quick approximates of the pressure distribution or the force coefficients
Casas, Francisco Javier. "Techniques de réduction d'ordre des modèles de circuits haute fréquence faiblement non linéaire." Limoges, 2003. http://www.theses.fr/2003LIMO0022.
Full textThe work reported deals with system-level modelling techniques of microwave circuits commonly employed in emission and reception telecommunications channels. The need of reduced models for simulation of communication systems is discussed, and the state of the art of this activity is summarized in the first chapter. The second chapter focus on model reduction methods for pumped and non-pumped circuits exhibiting a linear input-output behaviour. Then, in the third chapter, a model reduction technique for pumped weakly non linear circuits with memory is presented. In the fourth chapter, the proposed methods are applied to the modelling and simulation of a transmitter and receiver. Finally, the conclusions and perspectives of this work are summarised
Durbiano, Sophie. "Vecteurs caractéristiques de modèles océaniques pour la réduction d'ordre en assimilation de données." Université Joseph Fourier (Grenoble), 2001. http://www.theses.fr/2001GRE10228.
Full textFlament, Théo. "Modèle d'ordre réduit de structures non-linéaires pour l'aéroélasticité des turbomachines." Electronic Thesis or Diss., Paris, HESAM, 2023. http://www.theses.fr/2023HESAC038.
Full textThis work concerns the development of a reduced order model for geometric nonlinear structures, to replace the nonlinear structure solver within the framework of partitioned coupling for the numerical resolution of fluid-structure interaction problems, and thus the prediction of aeroelasticity phenomena encountered in turbomachinery. The construction of the reduced order model is based on a projection of the equations into a basis of reduced dimension, containing both linear modes of the structure and dual modes. The purpose of the latter is to enhance the basis of linear normal modes in order to capture the non-linearity. An original method for calculating the coefficients of the non-linear forces projected into this basis is also proposed. Forces are imposed on the structure, as opposed to the usual approach of imposed displacements. The same loading cases can thus be used to determine both the dual modes and the coefficients of the projected non-linear forces.In this thesis, the methodology to build the reduced order model is detailed. It is first validated on a simple case of a nonlinear Euler-Bernoulli beam subjected to different loading conditions, including a partitioned fluid-structure coupling involving vortex-induced vibrations. The ability of this reduced order model to replace a nonlinear finite element solver is demonstrated in this last application. Validation on 3D cases is also proposed, including the complex geometry of a realistic engine fan blade subjected to unsteady aerodynamic loading
Telescu, Mihai. "Modélisation d'ordre réduit des interconnexions de circuits VLSI." Brest, 2007. http://www.theses.fr/2007BRES2038.
Full textLntegrated circuit designers are showing a growing interest in the effects of interconnect structures. Taking these effects into consideration during simulations has become a major goal. The main objective of this PhD was the development new model order reduction mathematical tools. VLSI interconnect applications were our main priority. Our model order reduction strategy supposes an initial modeling of the origjnal system using either a Laguerre or a Kautz representation. This manuscript contains a synthetic presentation 0f these orthogonal function bases. The five order reduction methods studied during this PhD are then presented. We make available several examples of application of methods to interconnect lines. Weillçistate, among other aspects, the possibility of obtaining Iow complexity equivalent circuits from our models and the possibility of performing reduced order modeling directly from data provided by full-wave simulation
Petit, Daniel. "Réduction de modèles de connaissance et identification de modèles d'ordre réduit : application aux processus de diffusion thermique." Aix-Marseille 1, 1991. http://www.theses.fr/1991AIX11348.
Full textBel, 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
Pomarede, Marie. "Investigation et application des méthodes d'ordre réduit pour les calculs d'écoulements dans les faisceaux tubulaires d'échangeurs de chaleur." Phd thesis, Université de La Rochelle, 2012. http://tel.archives-ouvertes.fr/tel-00815992.
Full textBooks on the topic "Réduction d'ordre de modèle"
Bernier, Diane. La réduction du stress: Un modèle, une évaluation : rapport de recherche. [Montréal]: Université de Montréal, École de service social, 1988.
Find full textBook chapters on the topic "Réduction d'ordre de modèle"
VENTRE, Jeanne, José-Maria FULLANA, Pierre-Yves LAGRÉE, Francesca RAIMONDI, and Nathalie BODDAERT. "Modèles d’ordre réduit du flux sanguin : application aux sténoses artérielles." In Écoulements biologiques dans les grands vaisseaux, 163–83. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9065.ch6.
Full textCHIQUET, Julien, Marie-Josée CROS, Mahendra MARIADASSOU, Nathalie PEYRARD, and Stéphane ROBIN. "Le modèle Poisson log-normal pour l’analyse de distributions jointes d’abondance." In Approches statistiques pour les variables cachées en écologie, 175–99. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9047.ch8.
Full textDUBREUIL, Sylvain, Nathalie BARTOLI, Christian GOGU, and Thierry LEFEBVRE. "Réduction d’incertitudes en analyse multidisciplinaire basée sur une étude de sensibilité par chaos polynomial." In Ingénierie mécanique en contexte incertain, 121–50. ISTE Group, 2021. http://dx.doi.org/10.51926/iste.9010.ch4.
Full textFAILLE, Arnaud. "Faune souterraine et biogéographie." In La biogéographie, 159–80. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9060.ch6.
Full textSpivak, Gayatri Chakravorty. "Gayatri Chakravorty Spivak." In Gayatri Chakravorty Spivak, 29–44. Hermann, 2023. http://dx.doi.org/10.3917/herm.renau.2023.02.0029.
Full textReports on the topic "Réduction d'ordre de modèle"
Dufour, Quentin, David Pontille, and Didier Torny. Contracter à l’heure de la publication en accès ouvert. Une analyse systématique des accords transformants. Ministère de l'enseignement supérieur et de la recherche, April 2021. http://dx.doi.org/10.52949/2.
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