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Artykuły w czasopismach na temat "Méthode champ de phase"
Blanchard, Mélanie, Mahamoudou Koutou, Eric Vall i S. Bognini. "Comment évaluer un processus innovant ? Cas de l’amélioration quantitative et qualitative de la fumure organique au champ". Revue d’élevage et de médecine vétérinaire des pays tropicaux 64, nr 1-4 (1.01.2011): 61. http://dx.doi.org/10.19182/remvt.10115.
Pełny tekst źródłaKramer, Ueli. "Les méthodes d’études de cas en psychothérapie : perspectives actuelles". Santé mentale au Québec 36, nr 1 (16.09.2011): 201–16. http://dx.doi.org/10.7202/1005821ar.
Pełny tekst źródłaDeffo, Victor, Sylvie Hounzangbe-Adote, Raphiou Maliki i H. H. M. Ould Ferroukh. "Evaluation participative ex ante de propositions de la recherche. Cas d’application dans le sud du Togo". Revue d’élevage et de médecine vétérinaire des pays tropicaux 64, nr 1-4 (1.01.2011): 89. http://dx.doi.org/10.19182/remvt.10119.
Pełny tekst źródłaBerni Millet, Piero. "Dynamiques économiques de la production et du commerce des amphores Dressel 3-2 léétaniennnes". Revue archéologique de Narbonnaise 50, nr 1 (2017): 223–36. http://dx.doi.org/10.3406/ran.2017.1957.
Pełny tekst źródłaClus, Jérôme, Sonya Yakimova, Gérard Pithon, Adrien Jourjon, Laure Guilbert i Guillaume Broc. "Insertion des personnes en situation de handicap : intégrer les parties-prenantes à la construction d’un dispositif de mise en activité accompagnée". Le travail humain Vol. 86, nr 3 (21.12.2023): 243–69. http://dx.doi.org/10.3917/th.863.0243.
Pełny tekst źródłaDemailly, Lise, i Nadia Garnoussi. "Les rencontres entre médiateurs de santé pairs et usagers de la psychiatrie en France : caractéristiques générales et effets du dispositif sur les représentations des usagers. Partie 1". Santé mentale au Québec 40, nr 1 (22.07.2015): 171–87. http://dx.doi.org/10.7202/1032389ar.
Pełny tekst źródłaGougoulis, Nicolas. "Réflexions pour une écriture psychanalytique de l’histoire du mouvement psychanalytique à partir de la méthode de Paul Roazen". Topique 158, nr 2 (18.07.2023): 91–110. http://dx.doi.org/10.3917/top.158.0091.
Pełny tekst źródłaMazlin, Viacheslav, Samer Alhaddad, Martine Boccara, Thomas Maldiney, Olivier Touvenin i Claude Boccara. "De la Tomographie Optique par Cohérence Plein champ (FFOCT) à la Tomographie Optique par Transmission Plein Champ (FFOTT)". Photoniques, nr 123 (2023): 31–35. http://dx.doi.org/10.1051/photon/202312331.
Pełny tekst źródłaWidlöcher, Daniel. "La méthode du cas unique". Devenir Vol. 35, nr 4 (16.08.2023): 331–40. http://dx.doi.org/10.3917/dev.234.0331.
Pełny tekst źródłaAubry de Maromont, Clotilde. "Propos introductifs". Revue de la recherche juridique N° 34, nr 3 (1.09.2020): 1297–322. http://dx.doi.org/10.3917/rjj.183.1297.
Pełny tekst źródłaRozprawy doktorskie na temat "Méthode champ de phase"
Mellenthin, Jesper. "Modélisation de la solidification de matériaux polycristallins par la méthode du champ de phase". Palaiseau, Ecole polytechnique, 2007. http://www.theses.fr/2007EPXX0036.
Pełny tekst źródłaMellenthin, Jesper. "Modélisation de la croissance de matériaux polycristallins par la méthode du champ de phase". Phd thesis, Ecole Polytechnique X, 2007. http://pastel.archives-ouvertes.fr/pastel-00003136.
Pełny tekst źródłaBayle, Raphaël. "Simulation des mécanismes de changement de phase dans des mémoires PCM avec la méthode multi-champ de phase". Thesis, Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAX035.
Pełny tekst źródłaPhase change memories (PCM) exploit the variation of resistance of a small volume of phase change material: the binary information is coded through the amorphous or crystalline phase of the material. The phase change is induced by an electrical current, which heats the material by the Joule effect. Because of its fast and congruent crystallization, theGe2Sb2Te5 alloy is widely used for PCM. Nevertheless, to get a better reliability at high temperatures, which is required e.g. for automotive applications, STMicroelectronics uses a Ge-rich GeSbTe alloy. In this alloy, chemical segregation and appearance of a new crystalline phase occur during crystallization. The distribution of phases and alloy components are critical for the proper functioning of the memory cell; thus, predictive simulations would be extremely useful. Phase field models are used for tracking interfaces between areas occupied by different phases. In this work, a multi-phase field model allowing simulating the distribution of phases and species in Ge-rich GeSbTe has been developed. The parameters of the model have been determined using available data on this alloy. Two types of simulations have been carried out, firstly to describe crystallization during annealing of initially amorphous deposited thin layer; secondly to follow the evolution of phase distribution during memory operation using temperature fields that are typical for those operations. Comparisons between simulations and experiments show that they both exhibit the same features
Lebbad, Hocine. "Modélisation de la croissance des structures de Widmanstätten par la méthode des champs de phase". Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS573.
Pełny tekst źródłaHe complex rearrangement of the phase domains in a metallic alloy, called microstructure, strongly impacts its mechanical properties. To optimize them, it is therefore important to understand the formation and evolution of the microstructures. The present work is devoted to a specific type of microstructures, called Widmanstätten. These acicular structures are observed in many metallic alloys (FeC, CuZn ...). Their growth, driven by the diffusion of alloying elements, occurs at constant velocity, in isothermal conditions. Yet, several aspects of this growth remain poorly understood, which justifies this study. Using phase-field models, we first show that the anisotropy of the elastic energy plays a key role on the growth, in both 2D and 3D. We observe that the tip radius of curvature does not depend on a dynamical process but relies on the competition between interfacial and elastic energy. Then, we illustrate the ability of our model to correctly describe the size of the tip. We have then developed two models to take into account two different mechanisms of relaxation by plastic deformation: misfit dislocations and plastic activity in the matrix. We have observed that plasticity does not change the singular growth at constant velocity but yet modifies the value of the growth velocity and the tip radius of curvature. Finally, we have developed a formalism at a thinner scale which is able to describe step nucleation and growth, which are often observed in Widmanstätten structures. Preliminary results, for a non-conserved field, are presented here
Huang, Xiaoqian. "Purification de l’eau usée par congélation sur paroi : modélisation par la méthode du champ de phase". Electronic Thesis or Diss., Lyon 1, 2024. http://www.theses.fr/2024LYO10205.
Pełny tekst źródłaThis work focuses on studying a wastewater purification process by freezing on a cold wall. Several studies show that the growth of the ice layer depends on the characteristics of the liquid phase (solute concentration, liquid temperature, etc.) and the experimental conditions (cooling rate, seeding, supercooling, and liquid phase circulation, etc.). However, the solute distribution in the solid phase, a crucial factor for improving the process performance, has been the focus of few studies. Therefore, precise and rigorous control of the process is necessary to achieve well-controlled ice purity. To achieve this goal, this thesis includes an experimental part and a modeling part. In the experimental part, the H2O-NaCl mixture was chosen as the model solution. An experimental setup for crystallization on a cold wall was specifically designed for this work. The setup is equipped with temperature and thermal conductivity sensors, and a camera is used to monitor the in-situ growth of ice during the manipulations. After a bibliographical study on the principle of crystallization and the implementation of the process, a series of manipulations for a parametric study was carried out. Dendritic growth was observed with a high growth rate. This phenomenon depends on the effect of convection, supercooling, the temperature gradient in the liquid phase, and the initial concentration of the solution to be purified. For the modeling part, the phase-field method was chosen. This method allows simulating the morphology and growth kinetics of the solid, the inclusion of liquid (pockets and interstices) in the solid, as well as the liquid phase. The simulations help better understand the phenomena occurring during crystallization, such as the incorporation of impurities into the ice. This method, rarely used in chemical engineering, was first applied to the freezing of a pure substance (water/ice) to understand the equations and study the model's parameters. This model was then extended to the freezing of a binary mixture (H2O-NaCl), corresponding to the product chosen for the experiment. To asses the thermodynamic consistency of this method, the Pitzer model was chosen to predict equilibrium and thermodynamic properties. Based on this thermodynamic data, the mass balance, thermal balance, and phase-field equations are solved. The effects of supercooling, concentration, and anisotropy on the dendritic growth of crystals are compared and discussed. This innovative work has demonstrated the relevance of the phase-field method, which has been little developed in chemical engineering until now. This method allows describing the phenomena occurring at the liquid/solid interface, predicting the behavior of the solid phase to limit the incorporation of solute into the ice, and more generally, understanding the phenomena involved during the crystallization step
Ghmadh, Jihène. "Etude par la méthode du champ de phase à trois dimensions de la solidification dirigée dans des lames minces". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4368/document.
Pełny tekst źródłaWe report on a numerical study of directional solidification in thin samples of succinonitrile-based dilute alloy. This thesis is based on 3D phase-field simulations. Numerical results are compared qualitatively and quantitatively with experimental observations. The comparison gives a good confirmation of the experimental laws, while providing new information on the dynamics of microstructures. Growth direction of the microstructure is constrained by two axes : the main crystal axis and the direction of the thermal gradient. Simulations allow us to test the variations of the growth direction and the microstructure stability at various misorientation angles. Our results are directly compared with the experimental law that gives the microstructure orientation response in a large domain of Péclet numbers. We obtain a good agreement, both on qualitative and quantitative grounds, between experiments and 3D simulations.In the second part of this manuscript, an oscillatory instability (2λ − O mode) is numerically studied. This mode involves oscillations of both cell width and cell tip position. This instability is reproduced in numerical simulations with the aim of allowing a fine and relevant comparison with experiments of the domain of existence and the periods of oscillation. In particular, the forced oscillation regime is explored to obtain information on the frequency response of the system
Robin, Éric. "Développement d'une méthode de démodulation de phase à partir d'une seule image de franges : applications des méthodes optiques de champ à la mesure en dynamique". Poitiers, 2005. http://www.theses.fr/2005POIT2321.
Pełny tekst źródłaThe recent progresses of the digital high speed cameras allows us to analyze very fast phenomena, such as cracks propagations, vibrations or impacts loading. These cameras give us a single frame of each time of experimental process. Optical methods in mechanics are widely used by researchers and engineers. The values of the quantities we are looking for are contained in the demodulated phase of the fringe pattern. Usually, in static, the phase extraction is performed by a phase shifting technique using several fringe patterns. But, this approach is unavailable for studies in dynamics. In this case, we have access to only one image for a given mechanical state. So we must extract the information from a single fringes pattern. We present two techniques of phase demodulation from a single real fringe pattern using the correlation technique. The behavior and the performances of both algorithms are presented with the help of examples
Hansen, Hubert. "Méthodes non-perturbatives en théorie quantique des champs : au-delà du champ moyen, l'approximation de la phase aléatoire". Phd thesis, Université Claude Bernard - Lyon I, 2002. http://tel.archives-ouvertes.fr/tel-00003814.
Pełny tekst źródłaEn se plaçant au-delà du champ moyen où seules sont prises en compte les corrélations entre une particule et un potentiel "moyen" à un corps, la RPA va permettre de rajouter dans le calcul de l'état fondamental des corrélations entre particules.
Afin de mettre en place le formalisme, on applique la RPA, sons différentes formes (standard, renormalisée, en termes de fonctions de Green), à l'une des plus simples théories des champs en interaction, la théorie scalaire lambda x phi^4. On montre qu'il se produit une transition de phase due à une brisure dynamique de symétrie dont le paramètre critique se rapproche des résultats obtenus sur réseaux et par la technique des "clusters". Les résultats sont aussi présentés à température finie pour le champ moyen.
On étudie également un modèle effectif réaliste de la transition de phase chirale, le modèle sigma-linéaire et on montre que le théorème de Goldstone est restauré, contrairement à l'approximation gaussienne.
Enfin pour éclaircir quelques points de la RPA et, aller au-delà des corrélations obtenues dans la forme renormalisée, on considère l'oscillateur anharmonique en mécanique quantique, en introduisant les corrélations minimales au-delà du champ moyen et on montre que les corrélations RPA améliorent grandement le résultat obtenu en champ moyen.
Yu, Zhan. "Modélisation de l'endommagement et de la fissuration des roches argileuses sous sollicitations thermo-hydromécaniques avec la méthode de champ de phase". Thesis, Lille 1, 2019. http://www.theses.fr/2019LIL1I108.
Pełny tekst źródłaIn the general framework of research projects related to geological disposal of radioactive waste, shale gas production and acid gas sequestration, it is necessary to investigate damage and cracking in clayey rocks under coupled thermo-hydro-mechanical loads (THM).In the first part of the thesis, a new phase-field method is developed for rock-like materials. Two crack fields are introduced in order to describe both tensile and shear cracks. A proper thermodynamics framework is proposed to describe the evolution of two crack fields. The plastic deformation of rocks is also taken into account. An efficient numerical algorithm is adopted for the coupling between the crack fields and displacement field. This algorithm is then set up in the framework of the finite element method. The efficiency of the new phase-field method is illustrated through examples showing tensile and shear cracks.In the second part, the phase-field method is extended to problems with thermo-hydro-mechanical coupling. To this end, a specific procedure is developed for the coupling between the crack fields, mechanical field and hydraulic and thermal fields. The effects of THM coupling on cracking mechanisms are investigated.The last part is devoted to two representative examples of application. The first one is relevant to the study of excavation induced damage and cracking around an underground gallery. The second one is related to the thermally induced cracking. Both examples are based on in situ experiments performed in the underground research laboratory of Andra
Ducousso, Tristan. "Etude de la solidification dirigée par la méthode du champ de phase : comparaison théorie - expérience pour un alliage binaire dilué". Aix-Marseille 3, 2009. http://www.theses.fr/2009AIX30043.
Pełny tekst źródłaThe growth direction of dendritic structures during directional solidification is bounded by crystal and imposed temperature gradient axes. An empirical scaling law has recently been proposed to describe the selected growth direction. These observations are compared to results obtained from a "one-sided" phase-field model including a phenomenological antitrapping current. We found a significant discrepancy between numerical and experimental results. One possible explanation may be found in the current form. First, a generalized expression for the antitrapping current is obtained in the framework of irreversible thermodynamics. Then, we present an analysis of the sharp-interface limit of our phase-field model with an arbitrary diffusion coefficient in the solid phase. We show that the current depends on a parameter X which cannot be determined directly with a diffuse-interface model. Finally, a level-set method based on sharp-interface model is developed to quantify this parameter. The level-set method indicates that X seems to be a very small parameter in free dendritic growth. However, the gradient temperature could increase this parameter in directional solidification, and so reduce the accuracy of the phase-field model. Numerical simulations remain to be done in order to test this point
Książki na temat "Méthode champ de phase"
Lobo, Carlos. Le phénoménologue et ses exemples: Étude sur le rôle de l'exemple dans la constitution de la méthode et l'ouverture du champ de la phénoménologie husserlienne. Paris: Kimé, 2000.
Znajdź pełny tekst źródłaEcole des hautes études en sciences sociales, red. Le phénoménologue et ses exemples: Étude sur le rôle de l'exemple dans la constitution de la méthode et l'ouverture du champ de la phénoménologie Husserlienne. Lille: A.N.R.T, Université de Lille III, 1998.
Znajdź pełny tekst źródłaBorredon, Marie-Elisabeth. Le transfert de phase solide-liquide en milieu organique faiblement hydrate: Une méthode originale de synthèse d'époxydes à partir d'aldéhydes issus de la biomasse. Grenoble: A.N.R.T, Université Pierre Mendes France (Grenoble II), 1986.
Znajdź pełny tekst źródłaMAGENTA, Sophie. Champ Mental: Méthode de Libération des Pensées Toxiques. Independently Published, 2019.
Znajdź pełny tekst źródłaMean Field Simulation For Monte Carlo Integration. Taylor & Francis Inc, 2013.
Znajdź pełny tekst źródłaMuller Mirza, Nathalie, i Marcelo Dos Santos Mamed. Sur les frontières de la pensée. Contributions d’une approche dialogique et socioculturelle à l’étude des interactions en contexte. Editions Antipodes, 2021. http://dx.doi.org/10.33056/antipodes.11940.
Pełny tekst źródłaCzęści książek na temat "Méthode champ de phase"
Bisnath, Sunil B., i Richard B. Langley. "CHAMP Orbit Determination with GPS Phase-Connected Precise Point Positioning". W First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies, 59–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-38366-6_9.
Pełny tekst źródłaLe Béguec, Gilles. "La constitution des groupes parlementaires. Questions de méthode". W Associations et champ politique, 183–210. Éditions de la Sorbonne, 2001. http://dx.doi.org/10.4000/books.psorbonne.60634.
Pełny tekst źródła"2 Valeurs moyennes gaussiennes . Méthode du col". W Transitions de phase et groupe de renormalisation, 23–50. EDP Sciences, 2020. https://doi.org/10.1051/978-2-86883-790-5.c004.
Pełny tekst źródła"2 Valeurs moyennes gaussiennes . Méthode du col". W Transitions de phase et groupe de renormalisation, 23–50. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0150-3-004.
Pełny tekst źródła"2 Valeurs moyennes gaussiennes . Méthode du col". W Transitions de phase et groupe de renormalisation, 23–50. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0150-3.c004.
Pełny tekst źródłaATTO, Abdourrahmane M., Aluísio PINHEIRO, Guillaume GINOLHAC i Pedro MORETTIN. "Analyse d’ordre fractionnaire et prédiction de trajectoire de cyclones". W 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.
Pełny tekst źródła"6 Coexistence de phases avec champ conjugué". W Domaines, parois, fronts de phase d’un cristal ferroïque, 305–38. EDP Sciences, 2025. https://doi.org/10.1051/978-2-7598-3621-5.c008.
Pełny tekst źródłaV. SANDRAKOV, Gennadiy. "Modélisation de la dynamique des fluides hétérogènes avec transitions de phase et milieux poreux". W Méthodes de calcul et modélisation mathématique en cyberphysique et applications techniques 1, 71–102. ISTE Group, 2024. https://doi.org/10.51926/iste.9164.ch4.
Pełny tekst źródła"11 Théories des champs o4 : champ à N composantes". W Transitions de phase et groupe de renormalisation, 287–306. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0150-3-013.
Pełny tekst źródła"11 Théories des champs o4 : champ à N composantes". W Transitions de phase et groupe de renormalisation, 287–306. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0150-3.c013.
Pełny tekst źródłaStreszczenia konferencji na temat "Méthode champ de phase"
Berger, David H., John D. Monnier, Rafael Millan-Gabet, Theo A. ten Brummelaar, Philip Muirhead, Ettore Pedretti i Nathalie Thureau. "CHARA Michigan phase-tracker (CHAMP): design and fabrication". W SPIE Astronomical Telescopes + Instrumentation, redaktorzy John D. Monnier, Markus Schöller i William C. Danchi. SPIE, 2006. http://dx.doi.org/10.1117/12.672168.
Pełny tekst źródłaBerger, David H., John D. Monnier, Rafael Millan-Gabet, Theo A. ten Brummelaar, Matthew Anderson, Jennifer L. Blum, Timothy Blasius, Ettore Pedretti i Nathalie Thureau. "CHARA Michigan phase-tracker (CHAMP): a preliminary performance report". W SPIE Astronomical Telescopes + Instrumentation. SPIE, 2008. http://dx.doi.org/10.1117/12.790168.
Pełny tekst źródłaCatros, S. "A quoi servent les Bio-Imprimantes 3D ?" W 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206601012.
Pełny tekst źródłaGellee, T., i B. Philippe. "Utilisation combinée des biomatériaux xénogéniques et d’os autologue en chirurgie reconstructrice préimplantaire : Réflexions à propos de quatre indications méconnues". W 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206602008.
Pełny tekst źródłaRaporty organizacyjne na temat "Méthode champ de phase"
Robert-Lachaine, Xavier, Hakim Mecheri, Denis Denys i Christian Larivière. Élaboration et faisabilité d'application d'une méthode d'évaluation biomécanique de l'exposition physique lors du port d'exosquelettes en milieu de travail. IRSST, luty 2025. https://doi.org/10.70010/crod7506.
Pełny tekst źródłaNegrini, Alessia, Jacques Perron, Samantha Vila Masse, Charles-Édouard Giguère, Andrea Gragnano i Marc Corbière. Analyse longitudinale et comparative des absences et des départs hâtifs dans un milieu d'éducation au Québec : une étude de exploratoire. IRSST, sierpień 2024. http://dx.doi.org/10.70010/aogc9943.
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