Academic literature on the topic 'Localisations thermiques'
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Journal articles on the topic "Localisations thermiques"
Arnaudet, I., E. Montassier, F. Javaudin, E. Naux, and Q. Le Bastard. "Prise en charge des brûlures en préhospitalier et aux urgences." Annales françaises de médecine d’urgence 11, no. 6 (November 2021): 367–84. http://dx.doi.org/10.3166/afmu-2021-0360.
Full textCherpi, M., A. Delage, T. Paul, and M. Renard. "Nociception in the Skin: nociceptors are no longer the only actors." Douleur et Analgésie 32, no. 4 (December 2019): 217–20. http://dx.doi.org/10.3166/dea-2020-0081.
Full textKAYSI, Y., and J. P. MELCION. "Traitements technologiques des protéagineux pour le monogastrique : exemples d’application à la graine de féverole." INRAE Productions Animales 5, no. 1 (February 28, 1992): 3–17. http://dx.doi.org/10.20870/productions-animales.1992.5.1.4217.
Full textFaci, Djihade Nesrine, Saida Chouf, Mostepha Benchiheub, and Soliman Belkahla. "Effet du vieillissement thermique sur les propriétés structurales et microstructurales d’un alliage à mémoire de forme de type CuZnAl." Matériaux & Techniques 110, no. 5 (2022): 504. http://dx.doi.org/10.1051/mattech/2022036.
Full textPérez, Marcos, Vasco De Basilio, Yrina Colina, Yngrid Oliveros, Shlomo Yahav, Michel Picard, and Denis Bastianelli. "Evaluation du niveau de stress thermique par mesure de la température corporelle et du niveau d’hyperventilation chez le poulet de chair dans des conditions de production au Venezuela." Revue d’élevage et de médecine vétérinaire des pays tropicaux 59, no. 1-4 (January 1, 2006): 81. http://dx.doi.org/10.19182/remvt.9959.
Full textMalavoi, J., and Y. Souchon. "Hydrologie et dynamique hydroécologique des cours d'eau." Revue des sciences de l'eau 5, no. 2 (April 12, 2005): 247–61. http://dx.doi.org/10.7202/705131ar.
Full textLandrein, Philippe, Georges Vigneron, Jacques Delay, Patrick Lebon, and Maurice Pagel. "Lithologie, hydrodynamisme et thermicité dans le système sédimentaire multicouche recoupé par les forages Andra de Montiers-sur-Saulx (Meuse)." Bulletin de la Société Géologique de France 184, no. 6 (November 1, 2013): 519–43. http://dx.doi.org/10.2113/gssgfbull.184.6.519.
Full textAbdenebi, Hafsia, Bariza Zitouni, Hocine Ben Moussa, and Djamel Haddad. "Effet de températures d’hydrogène sur le gradient thermique d’une SOFC planaire à anode supportée." Journal of Renewable Energies 14, no. 1 (October 24, 2023). http://dx.doi.org/10.54966/jreen.v14i1.241.
Full textSahli, Youcef, Bariza Zitouni, and Hocine Benmoussa. "Etude numérique tridimensionnelle de l'effet de la température d'entrée des gaz sur la production de chaleur dans une pile à combustible SOFC planaire." Journal of Renewable Energies 21, no. 2 (June 30, 2018). http://dx.doi.org/10.54966/jreen.v21i2.680.
Full textBen Moussa, Hocine, Bariza Zitouni, Kafia Oulmi, Slimane Saighi, Bouziane Mahmah, and Maiouf Belhamel. "Etude de l’effet thermique des différentes polarisations dans une pile à combustible de type SOFC." Journal of Renewable Energies 10, no. 3 (September 30, 2007). http://dx.doi.org/10.54966/jreen.v10i3.767.
Full textDissertations / Theses on the topic "Localisations thermiques"
Bruant, Valentin. "Modélisation transitoire des mécanismes de localisations thermomécaniques macroscopiques dans un contact frottant : application aux freins à disque." Electronic Thesis or Diss., Université de Lille (2022-....), 2024. http://www.theses.fr/2024ULILN040.
Full textObservations on brake disc reveal, generally under severe loading, that thermal localisations may occur on the disc surface. Such circumferential macroscopic localisations (hot spots) limit contact areas due to out-of-plane deformation caused by thermal expansion. The consequences are critical, as they increase the risks of cracking or low-frequency vibrations which can propagate throughout the vehicle.Several theories attempt to explain the formation of hot spots : stable thermomechanical mechanisms linked to non-uniform diffusion of heat (in case of ventilated brake disc) or instable thermomechanical instabilities (TEI), where the solution comes from studying the propagation rate of a sinusoidal perturbation in the contact pressure or temperature as function of the sliding speed. Another recently suggest approach shows that an initial deformation may evolve, under thermo-elasto-plastic stress, into a higher number of localisations (PWD : Progressive Waviness Deformation).Modelling thermal localisations remains challenging due to the multiphysic and multi-scale mechanisms encounter in frictional brakes. It requires thermal and thermomechanical solution that account nonlinear material behaviour and contact friction.The methodology of this work is based on finite element transient thermomechanical simulations and consider the importance to confront existing approaches and quantify out-of-plane deformations. In addition, numerous parameters must be considered, such as geometrical parameters or thermomechanical constrains, which experiments have proven to be factors of apparition of hot spots.The development proposed here first highlights the mechanisms involved in driving thermal localisations, by illustrating step by step the thermoelastic instabilities. The transient approach proposed here is then described and compared with analytical models from the literature (TEI) in terms of limit of stability. This approach allowed the study of several parameter and the explanation of some experimental observations. Finally, a detailed analyses of results enable a comparison between approaches from the literature, showing agreement in terms of final deformations (number of localisations) but with different thresholds. The importance of detailed modelling of the system (geometry, boundary conditions, initial conditions) is also emphasized
Wicker, Paul. "Influence des garnitures de frein sur les sollicitations thermiques des disques TGV et conséquences sur les risques de fissuration." Phd thesis, Ecole Centrale de Lille, 2009. http://tel.archives-ouvertes.fr/tel-00579663.
Full textVellettaz, Nicolas. "Optimisation d'un détecteur gazeux à micro-pistes destiné à la localisation à deux dimensions des neutrons thermiques." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10091.
Full textChabane-Sari, Nasr-Eddine. "Effets des traitements thermiques au four à lampes halogène sur la création de défauts électriquement actifs et sur le gettering interne du chrome dans le silicium." Lyon, INSA, 1993. http://www.theses.fr/1993ISAL0031.
Full textRapid Thermal Processing (RTP) is now widely used in ultra-large scale integration technology to obtain the electrical properties required for microelectronic devices. However, the RTP process involves high cooling rates which might induce hole trap levels in B-doped silicon and modifies the behaviour of oxygen in silicon, which is used for the internal gettering of chromium. In thise work, DLTS results about the formation of hole trap levels in B-dopes Si during RTP are presented with emphasis on the substrate type and the process parameters. A new hypothesis about the origin of those hole trap levels is also suggested. Furthermore, DLTS measurements associated with TEM analysis, are presented in order to point out the anomalies induced by the RTP on the behavior of oxygen and their consequences on the efficiency and the stability of internal gettering treatments. In particular, we have observed that the metal precipitation is controlled by the oxygen precipitation and established a connection between the internal gettering and the morphology of oxygen precipitation after nucleation. Besides, we have shown that the thermal instability of metallic precipitates strongly depends on the size and the destiny of oxygen precipitates at the end of the gettering treatment. Finally, our results support the concept of "oxygen precipitation gettering" previously reported by Gilles in the case of iron
Guimond, Marie-Odile. "Analyse moléculaire de la localisation cellulaire de la petite protéine de choc thermique Hsp27 de Drosophila melanogaster." Thesis, Université Laval, 2004. http://www.theses.ulaval.ca/2004/22332/22332.pdf.
Full textReverdy, Antoine. "Localisation de défauts par stimulation thermique laser modulée en intensité : développement et application à la direction de phase." Caen, 2008. http://www.theses.fr/2008CAEN2070.
Full textAll along this PhD manuscript we study various techniques dedicated to the defect localization in the interconnection part of microelectronics devices, with a special focus on the Thermal Laser Stimulation approach and its intrinsic limitations. A theoretical model was developed to describe the thermal behavior of an elementary structure excited by a step of thermal power. We establish an analytical model that allows the identification of parameters describing the transient evolution of the Thermal Laser Stimulation signal. Then, we demonstrate the interest of this novel approach in the failure analysis of an advanced microelectronic device and particularly in the interconnection part. The third chapter describes the experimental setup evolution, providing an access to this temporal information in image mode, i. E. Compatible with a laser scan configuration which is the standard mode of utilization in a failure analysis laboratory. Finally, the last part focuses on the application of this new approach for defective advanced technology devices analysis, where the dynamics analysis of the TLS signal gives complementary information, leading to a more accurate signature interpretation
Mbailassem, Fulbert. "Contrôle du bruit par effets de localisation par géométries irrégulières." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI095/document.
Full textIn this thesis, the acoustical behavior of irregular cavities leading to localization phenomenon is investigated for noise reduction applications. The aim of this work is to study and create by means of passive method, an accumulation of acoustical energy and dissipate it. Before addressing geometrical irregularities effects on the sound field, viscothermal dissipation mechanisms of sound are recalled and illustrated through few networks of quarter-wave resonators. In a second part, a study of the localization phenomenon is carried out by a modal analysis approach. The localization is quantified by the relative existence volume (VER), an indicator which gives a measure of the volume of the region in which a mode is localized as a fraction of the total cavity volume. The localization analysis is conducted using both regular and irregular cavities. It has been shown that only cavities with irregular geometry, such that sub-cavities are formed, can localize some acoustical modes. Moreover, the frequency of a localized mode is related to the dimensions of the localization region. Following the investigation of the localization phenomenon, the relation between cavities geometry and sound energy dissipation has been studied by the estimation of damping indicators, such as the quality factor, the sound absorption coefficient or the energy damping rate. According to this study, irregular cavities have higher capability to damp sound waves compared to regular cavities. However, for the case of irregular cavities only, the induced dissipation is not proportional to the localization. Nevertheless, when irregularities of rigid walls are not able to achieve sufficient dissipation, this can be obtained with slightly absorptive porous materials of irregular geometry. In fact, the dissipative properties of some porous materials can be optimized by giving them irregular interface. Finally, an experimental set-up has been designed to validate the localization phenomenon and to confirm the damping tendency of irregular geometries in comparison to regular ones. Moreover, measurements of the sound absorption coefficient of a hemp concrete reveal that the sample of irregular geometry achieves sound dissipation more than 40% higher than the one achieved by a regular plane sample. Finally, this thesis has addressed a technological challenge consisting of experimentally validating the localization phenomenon which is so far very difficult to obtain by the use of conventional pressure microphones. In the framework of this thesis, an optical non-conventional sound pressure measurement technique has been used. The used technique is the laser refracto-vibrometry which consists of using a laser vibrometer in some specific conditions to measure the acoustical field (sound pressure). This technique is difficult to conduct but it has the advantage of being contactless, thus less cumbersome for even very small cavities as compared to pressure microphones
Gerber-Scokaert, Delphine. "Implication de la protéine kinase CK2 dans la réponse des cellules au stress : une étude des mécanismes de régulation de la localisation de la CK2." Grenoble 1, 2000. http://www.theses.fr/2000GRE10152.
Full textBourbonnais, Roch. "Simulation numérique des vibrations dans des réseaux désordonnés, fractals et anharmoniques." Grenoble 1, 1989. http://www.theses.fr/1989GRE10120.
Full textDuprat-Oualid, Sylvia. "Évolution thermique et mécanique des zones de cisaillement : approche analytique, numérique et confrontation aux données de terrain." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S128/document.
Full textShear zones are common structural features in the lithosphere and occur at various scales (from microscopic to lithospheric). At the lithospheric scale, they concentrate most of the relative movements between tectonic plates, and therefore, accommodate a high amount of strain. Consequently, the understanding of both their spatial and temporal mechanical behaviour is crucial for the general knowledge of the lithosphe dynamics. Rheology of rocks, which define their mechanical behaviour, is controlled by physical laws that predict how they deform under some stresses. Temperature plays a major role in the creep-dislocation behaviour, which characterizes the ductile domain (in depth), decreasing efficiently the rock strength. Furthermore, each rock has intrinsic mechanical properties, which depend on its mineralogical composition, texture and internal structures. However, due to the lack of data directly measurable deeper than a few kilometres, the lithosphere rheology, and in particular the continental lithosphere remains subject to drastically different interpretations. The mechanical behaviour of major shear zones is not fully understood, as they are the location of intense changes of both the rock internal nature and major thermal perturbations. Especially, the mechanical energy, converted into heat (shear heating) causes a close interaction between thermal ad mechanical evolutions. This thesis aims to better understand the rheological state of lithospheric scale shear zones. For this purpose, we used an original approach, based on the temperature field evolution around and within such shear zones. From 2D numerical thermo-kinematic models and analytical developments, the first order variability of thermal evolution and perturbation is anal- ysed and quantified with respect to the impact of three major thermal processes, defined as diffusion, advection and shear heating. Results are compared to metamorphic thermal signatures associated to intra-continental thrust zones for which the influence of both accretion and erosion was also investigated. The case of the Main Central Thrust (MCT) in the Himalayas, whose the inverse metamorphic thermal zonation has been extensively studied, was chosen as the main natural analogue. Our quantitative results highlight the crucial role of shear heating, and more particularly of mechanical strength variability within shear zones. We thus emphasise on the importance of rock creep parameters. The study of centimetre-scale shear zones, which developed within the granodiorite of the Zillertal nappe (Tauern window, Tyrol, Alps) thanks to little local variations of the mineralogical composition, reveals the extreme sensitivity of igneous rocks rheology, representative of the continental crust. The consequences of such an intense variability, revealed at small scale are finally discussed with regard to rheologies usually considered in models that focus on processes controlling lithosphere dynamics
Reports on the topic "Localisations thermiques"
Rencz, A. N., C. Bowie, and B. C. Ward. Applications des images thermiques tirées des données LANDSAT à la localisation de kimberlites, région du lac de Gras, district de Mackenzie (T.N.-O.). Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/211838.
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