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Статті в журналах з теми "Caractérisation thermique et thermocinétique":
Lanzetta, François, Eric Gavignet, and Philippe Nika. "Caractérisation et modélisation d'un microdébitmètre thermique à thermocouple bifilaire." La Houille Blanche, no. 5 (October 2003): 46–52. http://dx.doi.org/10.1051/lhb/2003089.
Ider, A., B. Frit, J. P. Laval, J. Carré, P. Claudy, and J. M. Létoffé. "Étude du système TeO2TeF4. Caractérisation structure et thermique." Thermochimica Acta 258 (July 1995): 117–24. http://dx.doi.org/10.1016/0040-6031(94)02233-e.
Aigouy, T., P. Costeseque, R. Sempere, T. Senac, J. Jaud, and D. Anglerot. "Caractérisation structurale et évolution thermique de l'acide amino-11-undécanoïque (C11H23NO2.1,5H2O)." Acta Crystallographica Section B Structural Science 51, no. 1 (February 1, 1995): 55–61. http://dx.doi.org/10.1107/s010876819400159x.
CHARLES, Antoine, Thierry RIBEIRO, Marcos OLIVEIRA, Sam AZIMI, Vincent ROCHER, Jean-Christophe BAUDEZ, and S. Amir BAHRANI. "Mieux comprendre l’écoulement des boues digérées : rôle de la viscosité et de la température." Techniques Sciences Méthodes 10, no. 10 (October 20, 2023): 35–45. http://dx.doi.org/10.36904/tsm/202310035.
Beddar, Sidahmed, Guillaume Thin, Jean-Baptiste Millet, and Yasser Alayi. "Banc de tests et de caractérisation pour la mesure optique, thermique et électrique des LED." Instrumentation Mesure Métrologie 15, no. 1-2 (June 30, 2016): 137–60. http://dx.doi.org/10.3166/i2m.15.1-2.137-160.
Verdy, C., C. Coddet, D. Cornu, J. M. Demonicault, J. B. Martin, J. C. Garcia, and F. Pellerin. "Caractérisation et assemblage de matériaux métalliques obtenus par projection thermique sous basse pression." Le Journal de Physique IV 10, PR4 (March 2000): Pr4–49—Pr4–60. http://dx.doi.org/10.1051/jp4:2000407.
Bottreau, AM, G. Vicq, and JM Fornies Marquina. "Étude de la déshydratation de quelques phosphates, par leur caractérisation diélectrique et thermique." Journal de Chimie Physique 92 (1995): 2012–28. http://dx.doi.org/10.1051/jcp/1995922012.
Belhaneche-Bensemra, N. "Caractérisation des mélanges PVC-PMMA rigides et plastifiés. II – Etude de la dégradation thermique." Annales de Chimie Science des Matériaux 28, no. 4 (July 2003): 25–42. http://dx.doi.org/10.1016/s0151-9107(03)00093-x.
Djeddi, Fadila, Mouloud Mohellebi, and Ahmed Ouibrahim. "Optimisation des propriétés mécaniques de matériaux polymériques par les mélanges et effet bénéfique du vieillissement thermique." Matériaux & Techniques 107, no. 6 (2019): 604. http://dx.doi.org/10.1051/mattech/2020001.
Paris, Pierre, Jean-Marie Haussonne, and Jean Lostec. "Appareil permettant la caractérisation thermique de substrats et matériaux à forte conductibilité pour micro-électronique." Journal de Physique III 3, no. 4 (April 1993): 677–88. http://dx.doi.org/10.1051/jp3:1993156.
Дисертації з теми "Caractérisation thermique et thermocinétique":
Hany, Cindy. "Développement de méthodes thermiques pour la caractérisation de réactions chimiques en microfluidique." Thesis, Bordeaux 1, 2009. http://www.theses.fr/2009BOR13936/document.
This work deals with the development of new measurement methods in order to characterize high exothermic chemical reactions in safe conditions. Thus, we combine thermal analysis with microfluidic technology. The use of microfluidics allows to manipulate a very small amount of product safely. First, we have developed a microcalorimeter to measure the global heat flux produced in co-flow or droplet-flow configurations. Several parameters can be determined: reaction and mixing enthalpy, concentrations by calorimetric titration and kinetics. The second method uses an InfraRed camera to measure the temperature field of the isoperibolic millireactor. Then, the local evolution of the reaction is estimated by thermal processing. From such inverse methods, the thermokinetic parameters can be determined
Coumes, Isabelle. "Caractérisation thermocinétique d'une installation d'analyse thermique différentielle automatisée." Grenoble INPG, 1986. http://www.theses.fr/1986INPG0095.
Djanna, Koffi Francis Lénine. "Convection naturelle turbulente en cavité différentiellement chauffée à grands nombres de Rayleigh : caractérisation expérimentale des écoulements et des transferts thermiques, étude numérique du couplage convection-rayonnement." Phd thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2011. http://tel.archives-ouvertes.fr/tel-00595352.
Flity, Hassan. "Modélisation de la dégradation et combustion du bois de construction." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0250.
The use of wood in construction offers numerous advantages, but also poses fire safety risks. Several studies available in the literature, whether experimental or numerical, have investigated the fire behavior of wood. However, the diverse and varied results do not allow the identification of the intrinsic behavior of wood, and regulatory frameworks have to rely on numerous simplifying assumptions. The objective of this thesis is to study the thermal degradation of wood at the cone calorimeter scale. The uniqueness of the study lies in the adoption of an increasingly complex approach, the use of meticulous metrology, and the most comprehensive characterization of the properties of the wood samples under investigation. Degradation involves numerous interacting processes such as drying, pyrolysis, and combustion with or without flames, resulting in heat and mass transfer. Given the complexity of studying all these phenomena simultaneously, the strategy adopted was to separate the different phenomena as much as possible through models and specific experiments. In order to overcome the problem of drying and hydric transfer, all the work was carried out on dry wood. First, specific characterization methods were used to determine the thermal properties of wood and charcoal. These experiments helped to establish behavioral laws for some of these properties, facilitating their integration into a model. Subsequently, an experimental campaign was conducted at the material scale of wood using techniques such as thermogravimetric analysis and differential scanning calorimetry under an inert atmosphere. At this scale, wood is thermally thin, which allowed the development of a kinetic model capable of predicting mass loss, mass loss rate, and heat absorbed or generated by wood during pyrolysis as a function of temperature. Next, an experimental campaign was carried out on wood samples at the scale of the cone calorimeter in an inert atmosphere to validate the 3D pyrolysis model developed to predict wood pyrolysis in the absence of combustion, driven primarily by heat transfer within the material. Finally, tests in an air environment were conducted for a comprehensive modeling of dry wood combustion, which requires a precise characterization of char combustion, the associated heat generated, and the heat flux supplied by the flame
Duquesne, Loys. "Caractérisation thermique de structures composites SiCf/SiC tubulaires pour applications nucléaires." Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0052/document.
Researches on the development on SiCf/SiC refractory composites for generation IV nuclear fuel cladding led the CEA to focus on the thermal behavior of these materials. In particular, knowingthe thermal properties is essential for their components design. Regarding the development of the sandwich" concept, whose complexity and geometry differ from the conventionally used at tubes,usual measurement methods are unsuitable.This PhD reports on the characterization and modeling of the thermal behavior of these structures. The first part concerns the identification of the global thermal parameters of the diferent layers of a"sandwich" sheath. To do so, a ash method is used and an experimental bench suitable for tubular geometries was developed. A new estimation method based on the combination of both collectedsignals in front and rear faces allows the identification of the thermal diffusivity of tubular composites using infrared thermography. The second part focuses on a virtual material approach, established todescribe the thermal behavior of a "sandwich" cladding, starting from the properties of the elementary components (bers and matrix). These properties, obtained using two different estimation methods,allows exploiting the measurements of two separate experiments based on infrared thermography.They are then used as data for the heat transfer modeling in these ducts. Confrontations betweenexperimental measurements and numerical results finally allow gaining insight into the in uence ofthe different key parameters governing the heat transfer
Monette, Simon-Pierre. "Caractérisation hydraulique et thermique d'une assistance ventriculaire." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ65589.pdf.
Brigui, Jamal. "Synthèse, caractérisation et comportement thermique de polystyrènes bifonctionnels." Saint-Etienne, 1992. http://www.theses.fr/1992STET4008.
Latournerie, Jérôme. "Céramiques nanocomposites SiCO : Synthèse, caractérisation et stabiblité thermique." Limoges, 2002. http://www.theses.fr/2002LIMO0046.
This work concerns the synthesis and the thermal evolution of polysiloxanes gels obtained by the sol-gel method. The aim of this study is to better understand the effect of the substituting groups bonded to silicon atoms on the cross-linking, ceramic yield and the thermal behaviour at high temperature. Two different types of precursors have been studied : trifonctional compounds RSi(OEt)3 ( where R=CH3, C2H3 and C6H5) and precursors that contained Si-H bonds obtained after polymerization of a mixture of methyldiethoxysilane and triethoxysilane in a variable amount (DhTh 1/1, 1/2 and 1/9). The first chapter concerns the study of hydrolysis and condensation reactions of different precursors by Raman spectroscopy. By following the kinetics of the disappearance of vSiO, we could access the intrinsic reactivity of hydrolysis reaction for of each precursor. These phenomena have been explained by steric, mesomer and inductive effects. In the second chapter, we studied the mechanisms of thermal conversion of polymeric gels into silicon oxycarbide. Thus the chronology of the main processes of mineralization in relation to the nature of the substituting group has been evaluated. The third chapter deals with the structural evolution of Si/C/O systems. We clearly established the importance and the domain of temperature of each reaction, which occurs above 1000°C, in relation to the composition of the materials. Carbothermal reaction has been studied and it shows SiO gas to be an intermediate product
Droval, Guillaume. "Élaboration et caractérisation de composites polymères conducteurs électrique et thermique." Lorient, 2006. http://www.theses.fr/2006LORIS068.
Focusing on further application in the field of ohmic heating, the aim of this work is to improve the thermal conductivity of heating systems (based on biphasic conductive polymer composites (CPC) – immiscible blend) without significantly altering electrical properties to ensure that the temperature gradient within the material decreases since that could, in a long run, damage the system. The applied approach allowed to study and control in an independent way the thermo-physical properties of each phase: an electrically conductive phase (high density polyethylene (HDPE) matrix with carbon black (CB) fillers) and a thermally conductive phase (syndiotactic polystyrene (sPS) matrix filled with various thermal micro particles such as aluminium oxide (Al2O3), aluminium nitride (AlN), talc or even boron nitride (BN) among others). The novel feature obtained from this study is the synergy of the electrical and thermal properties of the two phases. These new formulas maintain a self regulating capability (increase of the electrical resistivity as the temperature rises (Positive Temperature Coefficient – PTC effect) and double the heat dissipation. Finally, the thermo-electrical behaviour of optimized CPC in working process has been studied through experimental data and simulation models on benchmarks of pilot tests. These results are fully satisfying in the purpose of developing and designing these materials as self regulating heating elements
Mazhoud, Brahim. "Elaboration et caractérisation mécanique, hygrique et thermique de composites bio-sourcés." Thesis, Rennes, INSA, 2017. http://www.theses.fr/2017ISAR0024/document.
In response to environmental concerns, the use of hemp concrete has been developed in recent years and has shown its efficiency from a hygrothermal point of view. Its life cycle analysis underlines the environmental interest of hemp and shows that the most impacting component is the binder, usually lime-based. The aim of this thesis is to develop hemp-based composites by substituting lime with a less impacting mineral matrix. Several formulations are made with different binder matrices and different hemp content. On the one hand, the ThermO® commercial binder is used to produce "classic" hemp concrete, which are used as a comparative reference. On the other hand, binder matrices are developed based on washing mud fines. Claytec® commercial earth is also considered. After presenting the different raw materials selected for this study, the ThermO® binder is characterized with several water ton binder ratios. The washing mud fine stabilisation is investigated regarding mechanical resistance objectives. A stabilization with 5% of portland cement coupled with 5% of ThermO® is selected for the following development. This formulation does not significantly affect the thermal conductivity of the binder matrix, while allowing to achieve the fixed mechanical objectives. The composites made with the various selected binders have hemp I binder ratios ranging between 0.4 and 0.75, conventional ratio for roof, wall and floor applications. They are implemented by compact ion, which leads to densities ranging from 370 to 61 5 kg/m3 and porosities ranging from 70 to 81%. The mechanical. Thermal and hygric behaviors of the composites are investigated. The measured mechanical performances meet the requirements of the professional rules Construire en Chanvre, even for composites made with unstabilized fines. The sorption isotherms obtained are class II or III sigmoid, with higher water contents for composites made with ThermO®. The MBV values obtained show that the composites made with fines and with Caytec® earth are better hygric regulators than the composites made with ThermO® binder, respectively classified as excellent and as very good hygric regulators. The thermal performances of the composites allow a use in distributed insulation. At the dry point, the thermal conductivity mainly depends on the density, without impact of the type of binder. As ambient relative humidity increases, the thermal conductivity of ThermO®, binder-based composites is more impacted than that of other composites in connection with sorption isotherms. This study thus shows the relevance of the development of composites formulated with washing mud fine as a substitute tor lime
Тези доповідей конференцій з теми "Caractérisation thermique et thermocinétique":
Braikia, Mohamed, Ali Khelil, Larbi Loukarfi, and Hassan Naji. "Caractérisation thermique d’un multijet tourbillonnaire en mode confiné avec et sans obstacle." In 16th International Congress of Metrology. Les Ulis, France: EDP Sciences, 2013. http://dx.doi.org/10.1051/metrology/201315007.
Amra, Claude. "Thermique photo-induite, déflexion photothermique et endommagement laser dans les composants optiques interférentiels. Mesures d'absorption optique et tenue au flux." In Élaboration et caractérisation des cristaux massifs et en couches minces pour l'optique. Les Ulis, France: EDP Sciences, 2003. http://dx.doi.org/10.1051/bib-sfo:20028031.
Звіти організацій з теми "Caractérisation thermique et thermocinétique":
Seguin, M. K., and J. C. Dionne. Modélisation géophysique et caractérisation thermique du pergélisol dans les palses de Blanc-Sablon, Québec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/133575.