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Статті в журналах з теми "Conditions variées de pression et de température":
Mennad, Abdelkader. "Les techniques de dépôt de couches minces et leurs applications." Journal of Renewable Energies 18, no. 4 (October 18, 2023): 713–19. http://dx.doi.org/10.54966/jreen.v18i4.541.
Nogning Kamta, P., D. Chicot, F. Roudet, M. Touzin, and G. Louis. "Fluage et relaxation par indentation d’aciers au chrome." Matériaux & Techniques 105, no. 1 (2017): 103. http://dx.doi.org/10.1051/mattech/2017027.
Bouzid, Noureddine, Noureddine Settou, Touhami Lanez, Abdelkader Djelloul, Ahmed Abdelhafid Bebba, and Fatiha Chelgham. "Rôle des transferts thermiques sur la corrosion des concentriques utilisés dans les puits producteurs d’eau albienne." Revue des sciences de l'eau 22, no. 3 (August 3, 2009): 397–406. http://dx.doi.org/10.7202/037778ar.
Debellefontaine, H., P. Striolo, M. Chakchouk, J. N. Foussard, and J. Besombes-Vailhe. "Nouveaux procédés d'oxydation chimique pour l'élimination des rejets aqueux phénolés." Revue des sciences de l'eau 5, no. 4 (April 12, 2005): 555–72. http://dx.doi.org/10.7202/705147ar.
Luck, F., C. Bonnin, G. Niel, and G. Naud. "Caractérisation des sous-produits d'oxydation des boues en conditions sous-critiques et supercritiques." Revue des sciences de l'eau 8, no. 4 (April 12, 2005): 481–92. http://dx.doi.org/10.7202/705234ar.
Gzara, L., A. Hafiane, and M. Dhahbi. "Rétention des ions Plomb (II) en milieu acide par ultrafiltration assistée par les micelles." Revue des sciences de l'eau 13, no. 3 (April 12, 2005): 289–304. http://dx.doi.org/10.7202/705395ar.
Bœuf, Gilles. "L’eau liquide, molécule-clé pour le vivant." Annales des Mines - Responsabilité et environnement N° 112, no. 4 (October 25, 2023): 83–87. http://dx.doi.org/10.3917/re1.112.0083.
Mezouar, Mohamed, Agnès Dewaele, Nicolas Guignot, and Paul Loubeyre. "Le rayonnement synchrotron : un outil de pointe pour la science sous conditions extrêmes de pression et de température." Reflets de la physique, no. 34-35 (June 2013): 70–73. http://dx.doi.org/10.1051/refdp/201334070.
Pineau, S., M. Veyrac, M. Hourcade, and B. Hocheid. "Étude et réalisation de jonctions titane-tantale soudées par diffusion à haute température (855–920 °C): Influence des paramètres température, temps, pression et rugosité sur les propriétés mécaniques et optimisation des conditions de soudage." Journal of the Less Common Metals 109, no. 1 (July 1985): 169–96. http://dx.doi.org/10.1016/0022-5088(85)90116-x.
BOUDON, A., H. KHELIL-ARFA, J. L. MÉNARD, P. BRUNSCHWIG, and P. FAVERDIN. "Les besoins en eau d’abreuvement des bovins laitiers : déterminismes physiologiques et quantification." INRAE Productions Animales 26, no. 3 (June 18, 2013): 249–62. http://dx.doi.org/10.20870/productions-animales.2013.26.3.3153.
Дисертації з теми "Conditions variées de pression et de température":
Szilágyi, Robert. "Study of partial discharge and gas breakdown phenomena at a triple junction under various pressure and temperature conditions." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST007.
Triple junctions (between a gas, a solid insulator, and a conductor), which are present in numerous industrial applications, constitute a critical zone for the triggering of electrical discharges due to local reinforcement of the electric field. In addition, these triple points can be exposed to harsh environmental conditions. The aim of this study was therefore to come to a better understanding of the phenomena of partial discharge (PD) and gas breakdown from a triple junction under different pressure and temperature conditions. In particular, the Partial Discharge Inception Voltage (PDIV), the Partial Discharge Extinction Voltage (PDEV), and the Flashover Voltage (FOV) of surface breakdown of the solid insulator were examined.In this context, an experimental set-up was designed and operated in a nitrogen atmosphere ranging from 50 mbar to atmospheric pressure, for imposed temperatures varying from ambient to 400 °C. Particular attention was paid to aluminium oxide, a solid insulator material that can be used in this temperature range. The influence of temperature on PDIV (and PDEV) on the one hand, and FOV on the other, was characterised, analysed and interpreted by means of dielectric measurements, high-speed imagery and numerical simulations. Finally, under high temperature conditions and despite the precautions taken, an oxidation of the high voltage electrode was observed whose influence on the PDIV was analysed
Merlen, Alexandre. "Nanotubes de carbone monoparois dans des conditions extrêmes de pression et de température." Phd thesis, Université Claude Bernard - Lyon I, 2005. http://tel.archives-ouvertes.fr/tel-00011014.
Bellanger, Mathieu. "Raccourcissement alpin du massif des Ecrins : cinématique, calendrier tectonique et conditions pression-température." Thesis, Orléans, 2013. http://www.theses.fr/2013ORLE2080/document.
This field-based study of the Ecrins massif (Western Alps, external zone) show that the Alpine shortening is accomodated within the basement by brittle-ductile top-to-the-west reverse shear zones (probably localized by half-graben) as well as by the thrust sheets of La Meije and Combeynot to the east of the massif. The N-S normal fault do not seems to be reactivated. These shear zones are characterized by a phengitisation of feldspars along anastomosing planes whose geometry reflect a strain gradient which explain the "basement folds" formation underlined by the geometry of Triassic teguments. The maximum temperatures reach by the cover, due to the burial under the internal nappes are close to the isotherms 335°C for a geothermal gradient close to 20-25°C.km-1 from Bourg d'Oisans to the Penninic Frontal Thrust (PFT). The shear zones were dated between 33 to 25 Ma (40Ar/39Ar on syn-kinematics phengites), suggesting that they were initiated slightly after the burial which start close to 34 Ma. The phyllonites show younger ages than mylonite; that argue a localization of the deformation along these anastomosing planes between 30 to 25Ma and traduce a weak crust. The NW-Se shortening observed alonf the PFT seems to be coeval with the E-W to NE-SW shortening of the Ecrins massif. A sinistrial transpressive diffuse shear zones between the Ecrins massif and the Ligurian Alps, which is probably a reactivated Liassic transfer zone, can explaina part of the Oligocene building kinematics of the Western Alps. During Miocence, the deformation is localized along a crustal thrust under the Belledonne massif, which has given the Vercors massif, and along the PFT, reactivated as a normal fault
Le, Goff E. "Conditions pression-température de la déformation dans les orthogneiss. Modèle thermodynamique et exemples naturels." Phd thesis, Université Rennes 1, 1989. http://tel.archives-ouvertes.fr/tel-00655941.
Amiguet, Élodie. "Déformation expérimentale de diopside dans les conditions de pression et température du manteau supérieur." Electronic Thesis or Diss., Lille 1, 2009. http://www.theses.fr/2009LIL10001.
The plasticity of mineraIs under Earth's upper mantle conditions plays a major role in the processes that affect the dynamics of the Earth's interior. The properties of mantle mineraIs are still not weIl constrained. The purpose of this work is to study the deformation of clinopyroxenes (taking diopside as a proxy) under pressure since they are a major constituent of the upper mantle. Oriented single-crystals as weIl as polycristals of diopside were deformed under upper mantle pressures and temperatures. Deformation experiments have been conducted using a D-DIA multi-anvil press coupled with synchrotron radiation in order to perform in situ stress and strain measurements. The microstructures of deformed samples were characterized by Transmission Electron Microscopy. Mechanical data have enabled us to determine the high-pressure rheological law for 1/2 <110>{110} glide systems. At high pressure and temperatures, 1/2 <110> and [001] slips are dominant while [100] and [010] slips remain the hardest slip systems. VPSC modeIling based on our experimental results agree weIl with the textures observed in our experimentaIly deformed polycrystals as weIl as those in naturaIly deformed samples. We conclude that clinopyroxenes tend to reduce the upper mantle seismic anisotropy
Amiguet, Élodie. "Déformation expérimentale de diopside dans les conditions de pression et température du manteau supérieur." Thesis, Lille 1, 2009. http://www.theses.fr/2009LIL10001/document.
The plasticity of mineraIs under Earth's upper mantle conditions plays a major role in the processes that affect the dynamics of the Earth's interior. The properties of mantle mineraIs are still not weIl constrained. The purpose of this work is to study the deformation of clinopyroxenes (taking diopside as a proxy) under pressure since they are a major constituent of the upper mantle. Oriented single-crystals as weIl as polycristals of diopside were deformed under upper mantle pressures and temperatures. Deformation experiments have been conducted using a D-DIA multi-anvil press coupled with synchrotron radiation in order to perform in situ stress and strain measurements. The microstructures of deformed samples were characterized by Transmission Electron Microscopy. Mechanical data have enabled us to determine the high-pressure rheological law for 1/2 <110>{110} glide systems. At high pressure and temperatures, 1/2 <110> and [001] slips are dominant while [100] and [010] slips remain the hardest slip systems. VPSC modeIling based on our experimental results agree weIl with the textures observed in our experimentaIly deformed polycrystals as weIl as those in naturaIly deformed samples. We conclude that clinopyroxenes tend to reduce the upper mantle seismic anisotropy
Gross-Lorgouillux, Marion. "Zéolithisation de cendres volantes de charbon dans des conditions douces de température et de pression." Mulhouse, 2007. https://www.learning-center.uha.fr/opac/resource/zeolithisation-de-cendres-volantes-de-charbon-dans-des-conditions-douces-de-temperature-et-de-pressi/BUS4101683.
The amount of fly ashes (FAs) produced by the coal combustion in thermal power stations is huge, and even if part of these FAs is reused, their applications have a low-added-value. As the FAs are rich in Si and Al, they can be seen as potential sources for the synthesis of zeolites. These aluminosilicate materials are microporous and display a high added value. Recently, many studies have been devoted to the conversion of FAs into various zeolites. Generally, the FA transformation is performed by a hydrothermal synthesis close or above 100 °C and at autogeneous pressure. The originality of this study is the development of a cost-saving process allowing the FA transformation into zeolite by a hydrothermal reaction at low temperature (below 50 °C) and at atmospheric pressure. The FAs were first characterised by different techniques, the most important objective being the determination of their mineralogical composition (quartz, mullite and amorphous phase) but also of their reactivity. Then, the synthesis consists simply in the addition of a NaOH solution to the FAs. The needed NaOH and water amounts were optimised in order to form an X-type faujasite, the Al2O3/SiO2 ratio (x) of the synthesis medium being fixed by the chemical composition of the FAs. Using this composition (1SiO2: xAl2O3: 3,8NaOH: 73,5H2O), the transformation kinetics of the FAs were studied at 30 and 50 °C by different methods (XRD, nitrogen adsorption, solid state NMR, atomic absorption spectroscopy, and SEM), and a transformation mechanism is proposed. Whatever the temperature and the synthesis time, the solid obtained is a mixture of faujasite, and residual quartz, mullite and amorphous phase from the FAs, but it contains also traces of two other zeolites, namely NaP1 zeolite and chabazite. The temperature increase from 30 to 50 °C speeds up the reaction, but finally, the maximal conversion rates reached at both temperatures are close: about 25 to 30 %. Other experiments were performed in order to increase the conversion yield, i. E. The addition of silica to the synthesis medium or an indirect synthesis method consisting in an acid treatment (HCl) of the FAs prior to the classic hydrothermal reaction. These experiments allowed increasing the conversion rate which is, in the most favourable case, above 50 % offaujasite in the final dried product of the synthesis
Li, Hao. "Appproche structurale in situ des milieux fondus sous conditions extrêmes de température et de pression." Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2054/document.
Real time thermal remote sensing of active volcanic systems is a crucial technique for understanding the behavior and eruptive activity of hot magmatic bodies. Such technology relies on determining the thermal emissivity of the magma, a parameter to identify the temperature of magma. We used a direct method to obtain a spectrum in the wavenumber range from 400 to 13000 cm-1; the natural (volcano Erebus and Teide) and synthetic samples were heated up from room temperature to 2000K with a CO2 laser and data were collected during all the heating stage with a FTIR spectrometer.Our results thus indicate that thermal emissivity of magmatic rock is affected by changes in composition and thermal history. The emissivity measurements show the important role of the iron and the cooling rate on the spectral response of the phonolite composition. These are important observations since different emissivity will lead to different temperature determinations and hence, an erroneous interpretation on the rheology and thermal efficiency of the magmatic body
Meducin, Fabienne. "Etude des phases silicatées du ciment hydraté sous haute pression et haute température." Paris 6, 2001. http://www.theses.fr/2001PA066337.
Philippe, Julien. "Développement d'une presse portative pour les études in et ex situ sous conditions extrêmes de pression, température et déformation." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066008.
High pressures are essential in several scientific field. This will be the case in this thesis with the development of a new device enabling new possibilities tomography and deformation under high pressure and high temperature. It brings the possibility of further scientific studies in the various disciplines that are Earth science, mechanical chemistry, physics of materials and liquids physics
Частини книг з теми "Conditions variées de pression et de température":
DELAFOY, Christine, Frederico GARRIDO, and Yves PIPON. "Les céramiques au coeur des REP." In Les matériaux du nucléaire sous irradiation, 91–127. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9148.ch3.