Letteratura scientifica selezionata sul tema "Théorie des champs théoriques"
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Articoli di riviste sul tema "Théorie des champs théoriques":
Patte, Yves. "Sur le concept de « champ »". Sociologie et sociétés 38, n. 1 (13 ottobre 2006): 235–61. http://dx.doi.org/10.7202/013716ar.
Hespel, Bertrand. "Compte rendu de Léonard Susskind & Art Friedman : «Relativité restreinte et théorie classique des champs : tout ce que vous avez besoin de savoir pour commencer à faire de la physique»". Revue des questions scientifiques 191, n. 1-2 (1 gennaio 2020): 241–43. http://dx.doi.org/10.14428/qs.v191i1-2.71303.
Moro, Christiane. "La Cognition située sous le regard du paradigme historico-culturel vygotskien". Swiss Journal of Educational Research 23, n. 3 (1 dicembre 2001): 493–512. http://dx.doi.org/10.24452/sjer.23.3.4616.
Robert-Demontrond, Philippe, Amélie Bellion e Théophile Beausset. "Principes, enjeux et limites de la théorie des pratiques pour le marketing". Management & Sciences Sociales N° 28, n. 1 (1 gennaio 2020): 93–105. http://dx.doi.org/10.3917/mss.028.0093.
Trautmann-Waller, Céline. "Locus geometricus". Recherches germaniques HS 19 (2024): 193–210. http://dx.doi.org/10.4000/11v00.
Guery, Alain, e Gilles Postel-Vinay. "Aux origines de la monnaie moderne". Annales. Histoire, Sciences Sociales 43, n. 4 (agosto 1988): 969–74. http://dx.doi.org/10.3406/ahess.1988.283533.
Tremblay, Joël, e Hélène Simoneau. "Trois modèles motivationnels et le traitement de la dépendance aux substances psychoactives". Drogues, santé et société 9, n. 1 (8 novembre 2010): 165–210. http://dx.doi.org/10.7202/044872ar.
Rousseau, Nadia, Geneviève Bergeron e Raymond Vienneau. "L’inclusion scolaire pour gérer la diversité: des aspects théoriques aux pratiques dites efficaces". Swiss Journal of Educational Research 35, n. 1 (26 settembre 2018): 71–90. http://dx.doi.org/10.24452/sjer.35.1.4902.
Berryman, Tom. "Relier l’induction et la critique en formation et en recherche : un parti-pris issu de la théorie et de la pratique". Approches inductives 4, n. 2 (21 febbraio 2018): 184–211. http://dx.doi.org/10.7202/1043436ar.
Mérand, Frédéric, e Vincent Pouliot. "Le monde de Pierre Bourdieu : Éléments pour une théorie sociale des Relations internationales". Canadian Journal of Political Science 41, n. 3 (settembre 2008): 603–25. http://dx.doi.org/10.1017/s0008423908080748.
Tesi sul tema "Théorie des champs théoriques":
Chamma, Didier. "Les résonances de Fermi en liaison hydrogène X-H. . . Y : profils théoriques du spectre infrarouge de l'élongation X-H". Perpignan, 1999. http://www.theses.fr/1999PERP0337.
Colle, Stéphane. "Modélisation des champs diffus en acoustique urbaine par la théorie des transports : développements théoriques et mise en forme numérique". Le Mans, 2006. http://cyberdoc.univ-lemans.fr/theses/2006/2006LEMA1031.pdf.
This work has contributed to the development of a new propagation model of diffuse sound fields in urban acoustics, making it possible to take analytically into account the whole phenomena involved in the propagation (i. E. The diffuse reflection and, at least, on the principle, other phenomena such as the atmospheric attenuation, the micrometeorological effect. . . ). Based on an energetic and probabilistic approach, this model consista in decomposing the sound wave into a sum of sound particles (or phonons) in the propagation medium (i. E. A street). The distribution function of the phonons then follows a transport equation, whose boundary conditions consider the absorption coefficients and the reflection law (specular and/or diffuse) of the façades. In its most general form, the problem does not admit an analytical solution. For narrow streets, the use of an asymptotic approach makes it nevertheless possible to express the distribution and the deerease of sound energy through a diffusion equation. The problem is then reduced to the determination of the diffusion coefficient (function of the street characteristics), and to the calculation of an exchange coefficient modelling the absorption by the openings of the street. This approach, initially developed by Le Pollès, was generalized for streets made up of non-absorbing walls, characterized by A\w\n (n > 2) reflection laws on both sides of the street. Under these conditions, the analytical developments show that the diffusion coefficient depends on the street width, on the reflection laws and on the façades accommodation coefficient. This last coefficient represents the ratio between the specular and diffuse reflection. In addition, this development shows that in the case of a narrow street, the diffusion process only occurs in the median plane of the street, the density of sound energv being uniform on a transverse line of the street. The mathematical solutions were successfully compared to numerical simulations using the SPPS code, which is the direct application of the particles model. Due to the inability of the asymptotic development to take into account the acoustic absorption of the façades, a new approach inducing a damping in the propagation medium was proposed. This development was analytically performed, but its practical use requires numerical resolutions of integrals. Finally a numerical application of the diffusion model was proposed using a finite elements software (and the theoretical results of the above-mentioned diffusion model). This numerical approach makes it possible to model easily and quickly the sound propagation in complex urban areas, in multi-sources environments. Several examples are proposed and show the general interest of our work for the development of a simple and fast software, making it possible to carry out acoustic predictions in complex urban configurations
Duret, Quentin. "Contribution à l’étude des Fermions et de leurs angles de mélange en Théorie Quantique des Champs". Paris 6, 2008. http://www.theses.fr/2008PA066301.
Achard, Franck. "Argumentation et thèmes méthodologiques dans les publications théoriques de James Clerk Maxwell sur l'électricité et le magnétisme (1856-1879)". Paris, EHESS, 2002. http://www.theses.fr/2002EHES0054.
This study analyses how Maxwell defined and justified his scientific undertaking in his main theoretical publications on electromagnetism. It describes the function of some methodological themes to define the relationship between the uniqueness of his theory and its conformity with the knowledge produced by the contemporary mathematical physics. It stresses the high significance of a distinction between the “mathematical laws”, produced empirically, and the “physical hypothesis”, imagined afterwards to “explain” the phenomena. This theoretical framework, stemming from an article published by William Thomson in 1845, helps to illuminate the traditional picture of Maxwell's theory as a “mathematical translation” of Faraday's heterodox views and methods, Maxwell's use of mechanical “analogies” and “models” and the internal inconsistencies in some of his texts
Maurat, Emmanuel. "Étude théorique de la dynamique de charge et de spin de structures électroniques confinées". Strasbourg, 2009. https://publication-theses.unistra.fr/public/theses_doctorat/2009/MAURAT_Emmanuel_2009.pdf.
In this first approach, the dynamic aspects are modeled using concepts of statistical mechanics at the thermodynamic equilibrium. By using the Local Spin Density Functional Theory (LSDA-DFT) at finite temperature and within the grand canonical ensemble, we have studied the magnetic properties of small metal particles with open-shell structures made up of elements which are no magnetic in the bulk (like the noble metals Ag, Au or Pt). As for ferromagnetic bulk materials, these nano objects present a ferromagnetic-paramagnetic second order phase transition at a critical temperature which depends heavily on their size and on the electronic correlations. We have shown that the magnetic susceptibility obeys the Curie-Weiss law. This result is due to the finite size of the system implying a discrete spectrum of electronic levels and is consistent with recent measurements on aggregates of platinum sorted by mass [109]. Thus, when the electron temperature increases sharply, the magnetization decreases. Then, through the electron-phonon coupling the thermal energy is distributed over the lattice, which in turn decreases the electron temperature and allows the resurgence of the magnetization. This analysis is supported by some experimental results as the fact that the demagnetization is more or less pronounced according to the Curie temperature of the material [130]. Thanks to the linear response theory for LSDA-DFT that we developed, we were also able to find the features of a such demagetization on optical spectrums. However, this model is only qualitative. Indeed, the mechanisms that are causing the phenomenon of demagnetization are hidden by the statistical treatment of the problem. The spin magnetic moment (which, for metals, is essential to the magnetization of the system) may be redistributed on the orbital moment via spin-orbit coupling. The latter is of relativistic origin and must be added to the non-relativistic Hamiltonian describing the usual light-matter interaction. A few years ago, this hypothesis had already been discussed by G. P. Zhang and W. Hübner [149] to explain the demagnetization in ferromagnetic films. However, it was later refuted by B. Koopmans [131] ; the parameters used in [149] are not compatible with those used in experiments. First, in order to make us our own ideas on the subject and second, to extend to finite systems the studies conducted for the bulk, we have investigated the effect of spin-orbit coupling on the spin dynamics in nanoparticles. To this end, still using the jellium model (assuming a purely electronic processus), we choosed the TDDFT approach (Time Dependent Density Functionnal Theory) which have been completed by the introduction of the spin-orbit coupling term. We have thus observed that the spin-orbit coupling is a good mechanism for demagnetization, but it is not sufficient to explain the experimental observations. Indeed, as confirmed by a recent publication [? ], the quantity of orbital angular momentum is not a good reservoir to absorb the amount of spin angular momentum coming from the demagnetization. However, if the mechanism induced by the spin-orbit coupling is not sufficient to explain the full demagnetization, it is necessary as explained in the last part. In addition, we were able to highlight the important role played by the polarization of the laser pulse in the demagnetization process. This last aspect has been recently confirmed experimentally [138]. In the very last part of the manuscript, we propose a microscopic mechanism allowing to go beyond mean field which involves jointly the electron-electron collisions, the spin-orbit coupling and the conservation of total angular momentum. A diagram of the algorithmic model is proposed to allow its implementation in a standard TDDFT approach. Indeed, we believe that a redistribution of angular momentum induced by electron collisions must play a crucial role in the demagnetization phenomenon and all the more so that (i) the electronic temperatures, because of the interaction with the laser, are very high, and (ii) the highly nonlinear processes of electron collisions
Demarty, Sylvain. "Contribution à l'étude électromagnétique théorique et expérimentale des cartes de circuit imprimé". Limoges, 2006. http://aurore.unilim.fr/theses/nxfile/default/21c7910e-cd16-4aaf-a075-3639b658bc3f/blobholder:0/2006LIMO0042.pdf.
This thesis document presents a theoretical and experimental printed circuit boards analysis to understand their electromagnetic behaviour. In particular, the work completed during this research project is related to electromagnetic compatibility (EMC). In that field, the study was split in two themes : design of an electromagnetic near field measurement bench and its associated probes, and a development of numerical analysis software for the calculation of coupling between PCB strips. The first axis was the subject of a development phase, passive probes calibration, and a validation of the bench. The second research axis is based on the theory of the lines which was used to develop a software dedicated to the engineers. The theoretical results were validated with an experimental real case and a parametric study was undertaken to show its provisions
Zein, Samir. "Études théoriques des composés à transition de spin mono- et bi- nucléaires". Lyon 1, 2005. http://www.theses.fr/2005LYO10174.
Oblak, Blagoje. "BMS Particles in Three Dimensions". Doctoral thesis, Universite Libre de Bruxelles, 2006. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/231882.
Doctorat en Sciences
info:eu-repo/semantics/nonPublished
Oblak, Blagoje. "BMS Particles in Three Dimensions". Doctoral thesis, Universite Libre de Bruxelles, 2016. https://dipot.ulb.ac.be/dspace/bitstream/2013/231882/4/Thesis.pdf.
Doctorat en Sciences
info:eu-repo/semantics/nonPublished
Weitz, Eamonn. "Theoretical developments for jets in heavy-ion collisions". Electronic Thesis or Diss., Nantes Université, 2023. http://www.theses.fr/2023NANU4063.
The quark-gluon plasma (QGP) is an exotic phase of matter, composed of deconfined quarks and gluons and is briefly created in heavy-ion collisions (HIC) at the LHC and at the RHIC. High-energy, self-collimated structures of final-state particles also created in HIC, called jets, probe the QGP, piercing through it on their way to the particle detector. In particular, as the jet propagates, it is quenched, shedding its energy through its interaction with the QGP. Quantum field theory at finite temperature – thermal field theory, is then an extremely powerful tool, capable of analytically quantifying how such a high-energy object interacts with a weakly coupled thermal bath. In this thesis, we work towards the computation of corrections (in the expansion of the strong coupling constant) to two quantities, which dictate how jets are quenched by the QGP. The first being the transverse momentum broadening coefficient, which describes how the jet diffuses in transverse momentum space through its interaction with the medium. We focus on the computation of logarithmically enhanced corrections, carefully showing how the thermal scale affects the logarithmic phase space. The second is the asymptotic mass, which can be thought of as a shift in the jet’s dispersion relation as it undergoes forward scattering with the medium’s constituents. We complete a matching calculation, which rids the mass’ classical corrections of any unphysical divergences, while also beginning the completion of its full two-loop, quantum corrections
Libri sul tema "Théorie des champs théoriques":
Landau, Lev Davidovich 1908. Théorie des champs. 4a ed. Moscow: Mir, 1989.
Samake, Adama. La sociocritique: Enjeux théorique et idéologique : la problématique du champ littéraire africain. Paris, France: Éditions Publibook, 2013.
Meunier, Anik, e Jason Luckerhoff. La muséologie, champs de théorie et de pratique. Québec: Presses de l'Université du Québec, 2012.
Itzykson, Claude. Thorie statistique des champs. Les Ulis: EDP Sciences, 1989.
Teller, Paul. An interpretive introduction to quantum field theory. Princeton, N.J: Princeton University Press, 1995.
Pusterle, Charles. Analyse vectorielle des champs: Méthodes pour la physique. Paris: Masson, 1991.
Itzykson, Claude. The orie statistique des champs. Paris: InterEditions, 1989.
Martin, Philippe A. Problèmes à N-corps et champs quantiques: Cours élémentaire. Freiburg: Presses polytechniques et universitaires romandes, 1990.
Bellac, Michel Le. Des phe nome nes critiques aux champs de jauge. Les Ulis: EDP sciences, 2002.
Gitman, D. M. Quantization of fields with constraints. Berlin: Springer, 1990.
Capitoli di libri sul tema "Théorie des champs théoriques":
Schnedecker, Catherine. "1. Les noms d’humains : intérêts théoriques, méthodologiques et perspective dans le cadre d’une linguistique située". In Les noms d'humains ̶ théorie, méthodologie, classification, a cura di Catherine Schnedecker e Wiltrud Mihatsch, 3–43. Berlin, Boston: De Gruyter, 2018. http://dx.doi.org/10.1515/9783110586169-001.
Amar, Stéphane. "Psychologie et soins palliatifs". In Psychologie et soins palliatifs, 125–33. In Press, 2021. http://dx.doi.org/10.3917/pres.peyra.2021.01.0126.
"Chapitre 7 La théorie des champs ø4 : théorie des perturbations". In Théorie statistique des champs, 207–64. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2160-0-008.
"Chapitre 7 La théorie des champs ø4 : théorie des perturbations". In Théorie statistique des champs, 207–64. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2160-0.c008.
Husti, Carmen. "Féminisme/Postmodernisme/Postcolonialisme : redéfinir un champ théorique". In Transmission et théories des littératures francophones, 395–412. Presses Universitaires de Bordeaux, 2008. http://dx.doi.org/10.4000/books.pub.42829.
"Table des matières". In Théorie statistique des champs, iii—x. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2218-8.toc.
"13 Groupe de renormalisation de Wilson et théorie des champs". In Théorie statistique des champs, 449–74. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2218-8.c005.
"12 La théorie de Wilson du groupe de renormalisation". In Théorie statistique des champs, 411–48. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2218-8.c004.
"11 L’approximation du champ moyen et la théorie de Laudau des phénomènes critiques". In Théorie statistique des champs, 363–410. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2218-8.c003.
"Introduction du tome 2". In Théorie statistique des champs, xi—xviii. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2218-8.c001.
Atti di convegni sul tema "Théorie des champs théoriques":
Tomiche, Anne. "L’(anti)-féminisme des écrits théoriques sur la femme de Valentine de Saint-Point". In Théorie littéraire féminine à la Belle Époque. Fabula, 2023. http://dx.doi.org/10.58282/colloques.11007.
Bergadaà, Michelle, e Paulo Peixoto. "Introduction générale". In 2ème Colloque International de Recherche et Action sur l’Intégrité Académique. « Les nouvelles frontières de l’intégrité ». IRAFPA, 2022. http://dx.doi.org/10.56240/cmb9901.
Cohen-Azria, Cora. "Postface. Sciences et Connaissances : une question de sujet". In Journées d'étude "Les multiples dimensions de l'Homme et de la connaissance : questions épistémologiques, éducatives et culturelles. MSH Paris-Saclay Éditions, Université Paris-Saclay, 2024. http://dx.doi.org/10.52983/jajm7020.
Micó Romero, Noelia. "Problèmes de terminologie dans « Shipboard Oil Pollution Emergency Plan/ Plan d’urgence de bord contre la pollution par les hydrocarbures » sur la Méditerranée à partir d’une traduction de l’anglais vers le français." In XXV Coloquio AFUE. Palabras e imaginarios del agua. Valencia: Universitat Politècnica València, 2016. http://dx.doi.org/10.4995/xxvcoloquioafue.2016.3058.
Duport, Laurent J. "Learning from Le Corbusier". In LC2015 - Le Corbusier, 50 years later. Valencia: Universitat Politècnica València, 2015. http://dx.doi.org/10.4995/lc2015.2015.660.
Andersson, Fred. "Groupe µ and “the system of plastic form” -for an evaluation-". In Le Groupe μ : quarante ans de rhétorique – trente-trois ans de sémiotique visuelle. Limoges: Université de Limoges, 2010. http://dx.doi.org/10.25965/as.3097.