Literatura científica selecionada sobre o tema "Matière condensée – Modèles mathématiques"
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Artigos de revistas sobre o assunto "Matière condensée – Modèles mathématiques"
Marano, Francelyne. "Les méthodes alternatives à l’expérimentation animale, présent et futur". Biologie Aujourd’hui 217, n.º 3-4 (2023): 199–205. http://dx.doi.org/10.1051/jbio/2023035.
Texto completo da fonteDUCROT, C., J. CABARET, S. TOUZEAU, D. ABRIAL, C. JACOB, H. QUIQUAMPOIX, J. GROSCLAUDE e L. GRUNER. "Epidémiologie de la tremblante et de l’Encéphalopathie Spongiforme Bovine en France". INRAE Productions Animales 17, HS (20 de dezembro de 2004): 67–76. http://dx.doi.org/10.20870/productions-animales.2004.17.hs.3630.
Texto completo da fonteTidjani, A. E. B., D. Yebdri, J. C. Roth e Z. Derriche. "Exploration des séries chronologiques d’analyse de la qualité des eaux de surface dans le bassin de la Tafna (Algérie)". Revue des sciences de l'eau 19, n.º 4 (17 de janeiro de 2007): 315–24. http://dx.doi.org/10.7202/014418ar.
Texto completo da fonteCarlier, E. "Les modèles mathématiques hydrogéologiques ou outils d’aide à la décision en matière de protection des champs captants urbains : application à un champ captant de la Communauté urbaine de Lille". Revue Française de Géotechnique, n.º 101 (2002): 75–81. http://dx.doi.org/10.1051/geotech/2002101075.
Texto completo da fonteCHIRA, Rodica-Gabriela. "Sophie Hébert-Loizelet and Élise Ouvrard. (Eds.) Les carnets aujourd’hui. Outils d’apprentissage et objets de recherche. Presses universitaires de Caen, 2019. Pp. 212. ISBN 979-2-84133-935-8". Journal of Linguistic and Intercultural Education 13 (1 de dezembro de 2020): 195–200. http://dx.doi.org/10.29302/jolie.2020.13.12.
Texto completo da fonteLeonardo Javier, D’Andrea. "Indicadores referenciales asociados a la enseñanza y el aprendizaje del cálculo diferencial e integral en una variable para el desarrollo de competencias en ingeniería electrónica". RIDAA Tesis Unicen, 11 de julho de 2023. http://dx.doi.org/10.52278/3627.
Texto completo da fonteTeses / dissertações sobre o assunto "Matière condensée – Modèles mathématiques"
Chiron, David. "Etude mathématique de modèles issus de la physique de la matière condensée". Paris 6, 2004. http://www.theses.fr/2004PA066053.
Texto completo da fonteThéveniaut, Hugo. "Méthodes d'apprentissage automatique et phases quantiques de la matière". Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30228.
Texto completo da fonteMy PhD thesis presents three applications of machine learning to condensed matter theory. Firstly, I will explain how the problem of detecting phase transitions can be rephrased as an image classification task, paving the way to the automatic mapping of phase diagrams. I tested the reliability of this approach and showed its limits for models exhibiting a many-body localized phase in 1 and 2 dimensions. Secondly, I will introduce a variational representation of quantum many-body ground-states in the form of neural-networks and show our results on a constrained model of hardcore bosons in 2d using variational and projection methods. In particular, we confirmed the phase diagram obtained independently earlier and extends its validity to larger system sizes. Moreover we also established the ability of neural-network quantum states to approximate accurately solid and liquid bosonic phases of matter. Finally, I will present a new approach to quantum error correction based on the same techniques used to conceive the best Go game engine. We showed that efficient correction strategies can be uncovered with evolutionary optimization algorithms, competitive with gradient-based optimization techniques. In particular, we found that shallow neural-networks are competitive with deep neural-networks
Herzog, Basile. "Chemically accurate simulations by machine learning correlated approximations". Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0126.
Texto completo da fonteThe ability to systematically compute physical properties at chemical accuracy would be of tremendous help for efficient in silico material discovery, drug design or chemical reaction pathways study. While density functional theory has become the workhorse of materials simulations, the quality of results unfortunately often varies depending on the specific choice of the exchange-correlation functional, andthis significantly limits the predictive power of this approach. More correlated approaches, such a coupled cluster theory, the random phase approximation, or configuration interaction, provide more reliable results in a systematically improvable way. Their computational cost however render them inaccessible in a lot of applications, and this is particularly true for finite temperature properties, where many samples calculations are necessary to reproduce ensemble averages. Machine learning (ML) on the other, has proven its ability to efficiently reduce computational costs by using knowledge from previous calculations. The aim of this thesis is to contribute to the on-going development of ML assisted methods to obtain chemically accurate calculations. Machine learning perturbation theory (MLPT) is a recent promising approach capable of obtaining chemically accurate finite temperature properties by producing ensemble property estimates for highly expensive computational methods. This is achieved by learning the energy difference between two methods, using few samples from a reference statistics produced from a computationally feasible level of theory, and reweighting the later statistics to the computationally inaccessible target method, with thermodynamic perturbation theory (TPT). In this thesis, the MLPT method is tested against possible limitations of TPT, when a poor overlap between reference and target configurational space produce biased target estimates. A diagnostic test for this problem is proposed, together with a solution in the form of Monte Carlo resampling using the same ML model. MLPT is further applied to compute a coupled cluster estimate of the adsorption enthalpy of carbon dioxide inside a periodic zeolite. Finally, on another topic, a new method is presented, in the framework of configuration interaction (CI), to efficiently iteratively sample new Slater determinants using a generative ML model. This algorithm, called CIgen, is shown to be competitive or outperform other Monte Carlo and ML approaches to the CI problem
Lours, Thierry. "Etude structurale de la transformation sol-gel : caractérisation des aérogels et étude de leur densification par diffusion des rayons X aux petits angles". Montpellier 2, 1989. http://www.theses.fr/1989MON20012.
Texto completo da fonteNambully, Suresh Kumar. "A Filtered-Laminar-Flame PDF subgrid scale closure for LES of Premixed Turbulent Flames : Application to a Stratified Bluff-body burner with Differential Diffusion". Electronic Thesis or Diss., Rouen, INSA, 2013. http://www.theses.fr/2013ISAM0014.
Texto completo da fonteA sub-grid scale closure for Large Eddy Simulation (LES) of turbulent combustion, based on physical space filtering of laminar flames is presented. The proposed formalism relies on a presumed probability density function (PDF) derived from the filtered laminar flames and flamelet tabulated chemistry. The combustion LES filter size is not fixed in this novel approach when sub-grid scale wrinkling occurs, but calibrated depending on the local level of unresolved scalar fluctuations. The model was validated by simulating 1D filtered laminar flames and 2D Bunsen flames. Subsequently, the model was tested on a 3D turbulent scenario by performing LES of the premixed and stratified configurations of the Cambridge swirl burner, experimentally studied by Sweeney and co-workers. Comparison of simulation and experiments for both the premixed and stratified configurations showed good agreement emphasizing the model characteristiscs. Instantaneous and time averaged LES data were analyzed to extract
Castel, Alexis. "Comportement vibratoire de structures composites intégrant des éléments amortissants". Phd thesis, Université de Bourgogne, 2013. http://tel.archives-ouvertes.fr/tel-00983378.
Texto completo da fontePetit, Xavier. "Etude de l'interaction cinétique chimique/turbulence dans une flamme cryotechnique LOx/CHA4". Phd thesis, INSA de Rouen, 2014. http://tel.archives-ouvertes.fr/tel-01020523.
Texto completo da fonteElmi, Robleh Hassan. "Modélisation numérique des écoulements pulmonaires". Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00766647.
Texto completo da fonteSeisson, Gabriel. "Etude expérimentale et théorique de l'endommagement du graphite sous sollicitation dynamique - Application aux impacts hypervéloces". Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2014. http://www.theses.fr/2014ESMA0015/document.
Texto completo da fonteComposite materials are widely used in various applications and may be submittedto hypervelocity impacts (HVI), such as in the aerospace field. The size of the impactors beingclose to that of a strand of fibers, mesoscopic simulations are of great interest but they need reliablenumerical models for each meso-Constituent. Graphite often being used as fiber or matrix,we studied its dynamic behavior. Penetration and craterization experiments have been conductedonto porous isotropic graphite. Post-Mortem analysis of targets, associated to order-Of-Magnitudecalculations, sheds a new light on the phenomenology of impacts and brings useful informationfor numerical simulation. A model for porous and brittle materials, implemented into a hydrocode,is used. Partially based on static mechanical properties, it has been progressively tested on planeshocks. Its use for simulating HVI gives satisfying results. Nevertheless, it was necessary to validateit by disregarding the projectile behavior. In that purpose, a campaign of laser-Driven shocks hasbeen conducted. In-Situ diagnostics have been simultaneously used and their correlation with postmortemanalysis allowed the identification of different damaging regimes of the targets. Finally,although the equivalence between HVI and laser-Driven shocks is not proved, the latter turned outto be complementary, suggesting the future evolutions of the numerical model
Fomin, Victor. "Modèles de Hubbard unidimensionnels généralisés". Chambéry, 2010. http://www.theses.fr/2010CHAMS024.
Texto completo da fonteThis thesis is devoted to the one-dimensional integrable Hubbard model and its generalizations. The Hubbard model is one of the fondamental models in condensed matter physics which describes nteracting electrons on the lattice. In one dimension the Hubbard model is an integrable model which bas been intensively studied and served as a theoretical laboratory for the condensed matter physics. Recently, the integrable systems and in particular the Hubbard model, have surprisingly appeared in the AdS/CFT correspondance context. In the first part of the thesis, we present basis notions of the quantum integrability. In the second part we review several fundamental results of the one-dimensional Hubbard model. Moreover, applications in the AdS/CFT duality are considered. However, certain modifications of the integrable Hubbard model are necessary to reproduce the correct results of the AdS/CFT context. This is one of the main motivations of the studies of generalized Hubbard models. The fourth chapter is devoted to generalizations of the Hubbard model and we focus our attention on supersymmetric ones. The fifth chapter contains the results obtained in the framework of this thesis on the supersymmetric generalizations of the Hubbard models. Namely, the Coordinate Bethe Ansatz solution and real solutions of the Bethe equations in the thermodynamic limit are exposed. We point out that we obtained Bethe equations differs from the Lieb-Wu ones by phases which appearance is encouraging sign for the application in the AdS/CFT context. We also discuss possible applications in the AdS/CFT duality and in condensed matter physics
Livros sobre o assunto "Matière condensée – Modèles mathématiques"
Hoch, M. J. R. Statistical and thermal physics: An introduction. Boca Raton, FL: Taylor & Francis, 2011.
Encontre o texto completo da fonteKozlov, G. V. The fractal physics of polymer synthesis. Toronto: Apple Academic Press, 2014.
Encontre o texto completo da fonteO'Sullivan, Catherine. Particulate discrete element modelling: A geomechanics perspective. London: Spon Press/Taylor & Francis, 2011.
Encontre o texto completo da fonteLandau, David P., e Heinz-Bernd Schüttler. Computer Simulation Studies in Condensed-Matter Physics XI: Proceedings of the Eleventh Workshop Athens, GA, USA, February 22-27 1998. Springer London, Limited, 2011.
Encontre o texto completo da fonteLandau, David P., e Heinz-Bernd Schüttler. Computer Simulation Studies in Condensed-Matter Physics XI: Proceedings of the Eleventh Workshop Athens, GA, USA, February 22-27 1998. Springer London, Limited, 2012.
Encontre o texto completo da fonte(Editor), David P. Landau, e H. B. Schuttler (Editor), eds. Computer Simulation Studies in Condensed-Matter Physics XI: Proceedings of the Eleventh Workshop Athens, Ga, Usa, February 22-27, 1998 (Springer Proceedings in Physics). Springer-Verlag Telos, 1999.
Encontre o texto completo da fonteLandau, D. P., H. B. Schüttler e S. P. Lewis. Computer Simulation Studies in Condensed-Matter Physics XII: Proceedings of the Twelfth Workshop, Athens, GA, USA, March 8-12 1999. Springer London, Limited, 2012.
Encontre o texto completo da fonteLandau, David P., e Steven P. Lewis. Computer Simulation Studies in Condensed-Matter Physics XII: Proceedings of the Twelfth Workshop, Athens, G.A., U.S.A., March 8-12, 1999. Springer, 2011.
Encontre o texto completo da fonte(Editor), David P. Landau, S. P. Lewis (Editor) e H. B. Schuttler (Editor), eds. Computer Simulation Studies in Condensed-Matter Physics XII: Proceedings of the Twelfth Workshop, Athens, Ga, Usa, March 8-12, 1999 (Springer Proceedings in Physics). Springer-Verlag Telos, 2000.
Encontre o texto completo da fonteFrom fields to strings: Circumnavigating theoretical physics : Ian Kogan memorial collection. Singapore: World Scientific, 2005.
Encontre o texto completo da fonte