Academic literature on the topic 'Transfert géométrique'
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Journal articles on the topic "Transfert géométrique"
Chaudouard, Pierre-Henri, and Michał Zydor. "Le transfert singulier pour la formule des traces de Jacquet–Rallis." Compositio Mathematica 157, no. 2 (February 2021): 303–434. http://dx.doi.org/10.1112/s0010437x20007599.
Full textOladele, O. A., and C. O. Onwuka. "Evaluation sur le terrain du transfert des anticorps maternels contre l'encéphalomyélite aviaire dans des élevages de poulets du sud-ouest du Nigeria." Revue d’élevage et de médecine vétérinaire des pays tropicaux 66, no. 2 (February 1, 2013): 47. http://dx.doi.org/10.19182/remvt.10140.
Full textDupont, François, Oscar Forgues, Pierre Michaud, and Paul Trudel. "Étude expérimentale de la relation entre l’utilisation de Logo et l’apprentissage de certains concepts de géométrie." Revue des sciences de l'éducation 13, no. 2 (December 15, 2009): 167–83. http://dx.doi.org/10.7202/900559ar.
Full textSirois, François. "La géométrie du transfert : une sécante de la psyché dans la cure." Revue française de psychanalyse Vol. 86, no. 4 (July 22, 2022): 857–68. http://dx.doi.org/10.3917/rfp.864.0857.
Full textSehaqui, Rachid, Meryem Sijelmassi, and Jaâfar Khalid Naciri. "Amélioration du transfert thermique par optimisation de la géométrie d'une conduite de révolution." Mécanique & Industries 6, no. 2 (March 2005): 189–93. http://dx.doi.org/10.1051/meca:2005019.
Full textSakami, Par M., A. Charette, and V. Le Dez. "Application de la méthode des ordonnées discrètes au transfert radiatif dans un milieu bidimensionnel gris á géométrie complexe." Revue Générale de Thermique 35, no. 410 (February 1996): 83–94. http://dx.doi.org/10.1016/s0035-3159(96)80001-8.
Full textSoualmi, Rabiaa, Abderrahmane Benbrik, Mohammed Cherifi, Denis Lemonnier, and Siham Laouar-Meftah. "Etude numérique de la convection naturelle dans une enceinte rectangulaire en présence d’un gradient de température et une génération de chaleur interne." Journal of Renewable Energies 21, no. 3 (September 30, 2018): 403–13. http://dx.doi.org/10.54966/jreen.v21i3.700.
Full textLopez, Christine, Jean-Vincent Daurelle, and René Occelli. "Formulation éléments finis des ordonnées discrètes pour la modélisation des transferts couplés conduction-rayonnement en géométrie bidimensionnelle." Revue Européenne des Éléments Finis 8, no. 8 (January 1999): 847–78. http://dx.doi.org/10.1080/12506559.1999.10511415.
Full textSimon, Bruno, Laurent Briançon, and Luc Thorel. "Amélioration des sols par inclusions rigides : le rôle des géosynthétiques dans la plateforme de transfert de charge." Revue Française de Géotechnique, no. 162 (2020): 1. http://dx.doi.org/10.1051/geotech/2020003.
Full textBarthes, Magali, Christelle Reynard, Robert Santini, and Lounès Tadrist. "Détermination des caractéristiques géométriques de la croissance d'une bulle de vapeur et des transferts de chaleur associés : influence des incondensables sur le déclenchement d'instabilités convectives." Mécanique & Industries 6, no. 3 (May 2005): 257–62. http://dx.doi.org/10.1051/meca:2005026.
Full textDissertations / Theses on the topic "Transfert géométrique"
Picot, Gautier. "Contrôle optimal géométrique et numérique appliqué au problème de transfert Terre-Lune." Thesis, Dijon, 2010. http://www.theses.fr/2010DIJOS067/document.
Full textThis PhD thesis provides a numerical study of space trajectories in the Earth-Moon system when low-thrust is applied. Our computations are based on fundamental results from geometric control theory. The spacecraft's motion is modelled by the equations of the controlled restricted three-body problem. We focus on minimizing energy cost and transfer time. Optimal trajectories are found among a set of extremal curves, solutions of the Pontryagin's maximum principle, which can be computed solving a shooting equation thanks to a Newton algorithm. In this framework, initial conditions are found using homotopic methods or studying the linearized control system. We check local optimality of the trajectories using the second order optimality conditions related to the concept of conjugate points. In the case of the energy minimization problem, we also describe the principle of approximating Earth-Moon optimal transfers by concatening optimal keplerian trajectories around The Earth and the Moon and an energy-minimal solution of the linearized system in the neighbourhood of the equilibrium point L1
Gaye, Moussa. "Quelques problèmes d'analyse géométrique en géométrie quasi-Riemannienne et d'analyse de stabilité des systèmes à commutation linéaires." Palaiseau, Ecole polytechnique, 2014. http://www.theses.fr/2014EPXX0046.
Full textCots, Olivier. "Contrôle optimal géométrique : méthodes homotopiques et applications." Phd thesis, Université de Bourgogne, 2012. http://tel.archives-ouvertes.fr/tel-00742927.
Full textTescari, Stefania. "Optimisation géométrique dérivée de l’approche constructale pour réacteurs thermochimiques sous rayonnement solaire concentré." Perpignan, 2010. http://www.theses.fr/2010PERP1009.
Full textThis work aims to optimize thermochemical reactor driven by concentrated solar radiation. The definition of a simplified model, deriving from the constructal approach, allows to study the influence of the geometry and shape factor variation on the reactor performances and so to find the optima reactor shape. The influence of the operating parameters on the optimal geometry and on the maximal reactor efficiency is then studied. Starting from the simplified model, the limiting effects are pointed out, and new reactor configurations, at high performance, are proposed. The validity domain of the simplified model is defined by comparing the results with 2D numerical simulations. The model is then used to optimize a thermochemical reactor, applied to the production of solar fuels
Marx, Chhay. "Intégrateurs géométriques: Application à la Mécanique des Fluides." Phd thesis, Université de La Rochelle, 2008. http://tel.archives-ouvertes.fr/tel-00403649.
Full textLavoie, Marie-Hélène. "Résolution par optimisation numérique du problème géométrique inverse de manipulateurs sériels redondants pour des opérations de transfert dans un espace encombré." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ62595.pdf.
Full textHadj-Ahmed, Réda. "Modélisation des assemblages collés : Application à l'optimisation du transfert des efforts par cisaillement." Marne-la-vallée, ENPC, 1999. http://www.theses.fr/1999ENPC9926.
Full textThe use of adhesives to manufacture in plane force-transmitting joints between various structural material is now very spread because joining presents some advantages with regard to the others traditional techniques of material assembly. However, from a mechanical point of view, the classical joints (layers with constant thicknesses) present stress concentrations near the ends of the bond. Several shapes of joints are proposed in the literature to decrease the stress concentrtions but the analysis of stresses in these joints often requires a finite element method. The initial part of this work consists in rewriting a multiparticle model in the case of an adhesive bonded joint having layers with non constant thickness. The resolution of the model equations is done numerically by establishing a variational formulation. The model is validated by comparaison with finite element results on classical joints, scarfed joints, tapered joints and joints with uniform shear stress. The second part of this study deals with the scale effects for the shear strenght of adhesive joints. We propose a scale law giving the critical shear stress as a function of the adhesive thickness. This allows us to etablisk a procedure of optimization taking account of the scale effet. This scale effect is often related to the presence of defects in the adhesive. A law giving the probability of adhesive joint resistance is established. It makes it possible to find an optimal adhesive thickness and a limiting overlap length. This analysis allows also to definite clearly the problem of the proabilistic optimization of an adhesive joint. Indeed, it comes to the minimization of a functional of the adhesive thickness
Glavatskaya, Olga. "Conversion d’énergie thermique en énergie électrique par les modules thermoélectriques en vue de réduire la consommation et les émissions polluantes." Caen, 2012. http://www.theses.fr/2012CAEN2028.
Full textNowadays, there is renewed interest of car manufacturers in the conversion of the wasted energy to increase the fuel efficiency of vehicle and the CO2 emissions. In this context, among several methods, direct conversion of exhaust heat to electricity by thermoelectric generator seems to be a credible option for the vehicle. This thesis work involves the analysis of thermoelectric generator integrated into the vehicle. A numerical model of a thermoelectric generator able to support transient analysis is developed. This dynamic model can be coupled with coolant circuit model, exhaust system model and electric network model of the vehicle. Thus, we studied the energy interaction between all these subsystems. A developed numerical model complies with the bond-graph modeling principle applied to multi-physical systems. The transient modelling enabled us to predict the thermoelectric system performance for the different drive cycles of the vehicle. Furthermore, optimization study of the design of the thermoelectric generator was carried out. The optimal geometry of device was justified by the exergy analysis in order to quantify the wastes and destructions of exergy within a thermoelectric system. Moreover, the frequency analysis approach was applied to capture the transient performance of a thermoelectric generator
Petitcuenot, Mathieu. "Maîtrise de la qualité géométrique des pièces de formes complexes sur tout le cycle de conception et fabrication : Application à une aube de turbine." Thesis, Cachan, Ecole normale supérieure, 2015. http://www.theses.fr/2015DENS0025.
Full textMy PhD thesis is integrated into a context of functional dimensioning development in a 3D CAD environment at Snecma, a major player in the aerospace propulsion world. The objectives of this research work are varied but follow one goal: mastery quality geometry throughout the design, control and manufacturing cycle, by the deployment of the ISO standards of tolerancing.At first a functional definition ISO is proposed for parts with complex shapes that make up a turbo-machine while considering issues related to metrology and automatic control without contact. This definition requires some updates of existing standards. Another problem was to meet industrial demands in their entirety by considering the various types of engine parts.A second important part of the work is to develop control and analyze tools for complex 3D shapes for a better understanding of their geometry by separating local and global faults, which do not have the same functional impact.A third part develops a 3D manufacturing transfer strategy on complex workpieces on mounting “6 points” by considering the surface orientation problems.All work ensures compliance of functional requirements, on parts with complex shapes, from definition to the workpiece through the deployment of ISO standards of tolerancing.This work led to a publication in CIRP CAT 2014 China, a Snecma internal development of a quantification tool of global / local defects, a strong wich to develop a 3D transfer generic tool based on the work done, two awards Snecma creativity with one ranked second in 2013 on all the awards and a major change in the control method of form profiles specifications
Duplex, Benjamin. "Transfert de déformations géométriques lors des couplages de codes de calcul - Application aux dispositifs expérimentaux du réacteur de recherche Jules Horowitz." Phd thesis, Université de la Méditerranée - Aix-Marseille II, 2011. http://tel.archives-ouvertes.fr/tel-00679015.
Full textBook chapters on the topic "Transfert géométrique"
CAYOL, Valérie, Aline PELTIER, Jean-Luc FROGER, and François BEAUDUCEL. "La surveillance de la déformation des volcans." In Aléas et surveillance de l’activité volcanique 2, 103–76. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9045.ch2.
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