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Artykuły w czasopismach na temat "Analyses de matériaux extraterrestres"
Marsac, S., i S. Thomin. "Essais mécaniques et analyses des matériaux réfractaires au CEAT". Matériaux & Techniques 88, nr 1-2 (2000): 29–32. http://dx.doi.org/10.1051/mattech/200088010029.
Pełny tekst źródłaLafargue, M. "Garantir la qualité des analyses : Essais d'aptitude et Matériaux de référence". Sciences des Aliments 25, nr 1 (28.02.2005): 11–21. http://dx.doi.org/10.3166/sda.25.11-21.
Pełny tekst źródłaOualit, Mehena, Yannick Melinge, Raoul Jauberthie i M. Tahar Abadlia. "Durabilité des bétons des réseaux d’assainissement urbain". Matériaux & Techniques 107, nr 2 (2019): 202. http://dx.doi.org/10.1051/mattech/2019017.
Pełny tekst źródłaFréchette, Charles-Antoine. "L’Écomimétisme ou les reflets des manifestations sonores de l’environnement". Circuit 25, nr 2 (9.09.2015): 19–37. http://dx.doi.org/10.7202/1032933ar.
Pełny tekst źródłaJournot, Florence. "Pour une archéologie comparée de la maison urbaine dans le Grand Sud". Rodis. Journal of Medieval and Post-Medieval Archaeology, nr 3 (11.03.2021): 24. http://dx.doi.org/10.33115/a/26046679/3_1.
Pełny tekst źródłaTostes, Ana Leticia Lopes, i Luiz Cezar Silva dos Santos. "NO CÉU DA AMAZÔNIA HÁ ALGO A MAIS QUE AS ESTRELAS: o Chupa-Chupa e as notícias do fantástico". Aturá - Revista Pan-Amazônica de Comunicação 4, nr 1 (3.01.2020): 58–79. http://dx.doi.org/10.20873/uft.2526-8031.2020v4n1p58.
Pełny tekst źródłaGloriozova, Ekaterina, i Aude Merlin. "Introduction : Sotchi 2014 : des (en)jeux internationaux aux dynamiques locales". Connexe : les espaces postcommunistes en question(s) 2 (16.04.2016): 5–17. http://dx.doi.org/10.5077/journals/connexe.2016.e71.
Pełny tekst źródłaGnagne, Agness Essoh Jean Eudes Yves, Wolgang Yapo, Tiama Guy Nicaise Ballet, Tiedaba Traore i Gnahoua Magloire Okou. "Impact des matériaux de protection des puits traditionnels à usage domestique sur la qualité de l’eau : cas de la commune de Yopougon, Abidjan (Côte d’Ivoire)". European Scientific Journal, ESJ 20, nr 15 (31.05.2024): 129. http://dx.doi.org/10.19044/esj.2024.v20n15p129.
Pełny tekst źródłaLoubère, Lucie, Sylvia Kasparian i Fahim Ashkar. "Exploration textométrique d’ inondation dans les discours de la chambre des communes du Canada de 2003 à 2021". Éla. Études de linguistique appliquée N° 209, nr 1 (16.05.2023): 99–113. http://dx.doi.org/10.3917/ela.209.0103.
Pełny tekst źródłaDubé, Yves, i Yves Martin. "Rimouski : population et économie". Articles 1, nr 3 (12.04.2005): 269–308. http://dx.doi.org/10.7202/055032ar.
Pełny tekst źródłaRozprawy doktorskie na temat "Analyses de matériaux extraterrestres"
Bourgés, Cédric. "Synthèses, analyses structurales et propriétés thermoélectriques de matériaux sulfures". Thesis, Normandie, 2017. http://www.theses.fr/2017NORMC237/document.
Pełny tekst źródłaThe work presented in this thesis focuses on the synthesis and the structural/physicochemical characterizations of sulfide compounds with thermoelectric properties. Several families of sulphide compounds have been studied with the aim of developing and/or optimizing their thermoelectric performances.A binary compound, TiS2, was synthesized by mechanical alloying followed by a densification using Spark Plasma Sintering (SPS). The structural characterizations have revealed the effect of the elaboration on the microstructure and stoichiometry of the compound. This process induces a considerable reduction in the thermal and electrical conductivity of the material which hindered the optimization of the figure of merit. The ternary compound Cu4Sn7S16 was then developed according to two synthetic routes (conventional and mechanical alloying). It has been demonstrated that this semiconductor compound has a complex structure which promotes an intrinsic low thermal conductivity. The influence of the non-stoichiometry on the thermoelectric properties has been reported. Finally, the CuCoxTi2-xS4 and Cu26V2Sn6S32 compounds were the last interesting results presented. These compounds show metallic transport properties with high power factors. The synthesis and the influence of the Co content on the electronic transport properties have been discussed on the CuCoxTi2-xS4 compound. The effect of mechanical alloying and densification conditions were related to the transport properties of the Cu26V2Sn6S32 compound. Substantial improvement of the thermoelectric performances as reported.These various studies open interesting perspectives for the development and optimization of sulfide compounds for industrial application
Lorrain, Olivier. "Analyses expérimentales et numériques du procédé de soudage par friction malaxage fsw". Paris, ENSAM, 2010. https://pastel.archives-ouvertes.fr/pastel-00515112.
Pełny tekst źródłaThe Friction Stir Welding (FSW) is a solid state welding process, without melting. The weld is fabricated thanks to the action of tool made of a shoulder and a pin, positioned at the interface of the two pieces to be welded. The tool as two roles : heating of the material by friction of the shoulder, mixing of the material due to the pin. This thesis work is made within the partnership between Arts et Métiers ParisTech and Institut de Soudure. Its goal is to develop a FSW simulation model in order to decrease experimental trials required to optimize the process. Therefore, some points have been treated in this manuscript. Experimental analysis of thermal cycles and material movements in the case of unthreaded tools has been carried out. This situation allows (1) to make the comparison with numerical simulation easier and (2) to be in the case of worn tools. Formulations (lagrangian, eulerian, ALE) analysis in order to choose the more appropriate to take material flow into account has allowed to select an eulerian formulation (implemented in the FLUENT software) to estimate thermal and kinematical fields in the steady state. The set up of the numerical model in the FLUENT software is presented. We have studied the influence of numerical parameters on the results and proposed an identification strategy for some parameters which are not reachable experimentally. A detailed comparison between our experimental results and the ones from our simulations have been performed with success. The study of the influence of the process parameters (feed rate, rotating speed) and of the pin geometry on the kinematical and thermal fields has highlighted the link between velocity field and the presence of tunnel type defects
Barichard, Anne. "Enregistrement et analyses physico-chimiques de réseaux dans des matériaux composites polymères-points quantiques". Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28504/28504.pdf.
Pełny tekst źródłaKedowide, Yannick-Ariel. "Analyses expérimentales et numériques du comportement hygrothermique d’une paroi composée de matériaux fortement hygroscopiques". Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAA015/document.
Pełny tekst źródłaMore stringent thermal regulations, made necessary the inclusion of mass transfer in building walls and their interaction with heat transfer, particularly for those composed of porous and highly hygroscopic materials.The experimental device consists of two walls mounted and tested on PASSYS orientable cells, with controlled indoor environment, located on the CEA-INES site in Le Bourget du Lac. The wood framed walls, with a wood fiber insulation were tested under different internal and external conditions, depending respectively on internal monitored temperature and humidity, or orientation. The one-year long experimental measurements have shown the influence of moisture fluctuations on the thermal behavior of the tested walls, and also the influence of temperature on the moisture in the walls.A numerical model was used to simulate the phenomena observed in experimental conditions. The model, developed on DYMOLA was firstly validated by a comparison with other existing numerical models, during a benchmark on experimental measurements under controlled conditions. It was then used to simulate experimental sequences on external conditions of this work. Comparing the numerical and experimental results have shown a correlation of the temperature measurements, but a difference for the moisture measurements. Parametric adjustments showed an overestimation of the Hygric inertia combined with an underestimation of the vapor permeability of the numerical model compared to experimental sequences. A mismatch of material properties such as reflected generally in the numerical models with the experimental conditions in which they are recorded is underlined
Massué, Nicolas. "Optimisation de l'outil de galetage des vilebrequins par simulation numérique et analyses expérimentales". INSA de Rouen, 2006. http://www.theses.fr/2006ISAM0023.
Pełny tekst źródłaCohen, Zina. "Analyses de la composition de matériaux d’écriture dans des manuscrits de la Génizah du Caire". Thesis, Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLP024.
Pełny tekst źródłaThis doctoral project addresses the composition of writing materials in a group of manuscripts written during the 11th century, found in the Cairo Genizah. This study sheds light on the production of the manuscripts and uncovers patterns in the use of different writing materials in a statistically relevant number of documents. This study is based on an interdisciplinary strategy: using disciplines coming from the humanities coupled with scientific observations using a non-invasive, transportable protocol. The examination protocol consisted of near-infrared imaging to identify the type of ink used, and X-ray fluorescence spectroscopy for the elemental characterisation. After processing, the results were compared with the available descriptive information for each manuscript to reveal patterns of use
Ledru, Yohann. "Etude de la porosité dans les matériaux composites stratifiés aéronautiques". Thesis, Toulouse, INPT, 2009. http://www.theses.fr/2009INPT048G/document.
Pełny tekst źródłaLong fiber reinforced epoxy matrix composite laminate manufacturing process is divided into several stages. The most critical one is the polymerization stage. If not optimized, defects in the bulk material such as voids can occur. The aim of this work is to investigate the void formation and evolution processes in order to improve the thermoset laminates quality in minimizing the void ratio. Two phenomena causing void formation have been identified. The first is the mechanical entrapment of gas bubbles between prepreg plies during the lay up. Second is a thermodynamical one. Solvents and humidity absorbed by the prepreg during its manufacturing can be evaporated by increasing the temperature. Then, it has been shown that the vaccum bag lay up permeability in combination with the vaccum pressure could favour the gas washing out. In parallel, thermo-mechanical and diffusion models are coupled to obtain an accurate void size prediction along temperature and pressure applied during the polymerisation. In fact, these two parameters induce variations of the gas bubble radius inside resin. The first experimental results seem to validate qualitatively the calculated void size behaviour. Indeed, hydrostatic pressure imposed during polymerization plays a very important role on gas bubble shrinkage. Finally, a new experimental setup using image analyses has been developed to measure as accurate as possible the volume void ratio. Under specific conditions, stereology allows to extrapolate 2D results to 3D ones. Void ratios obtained with this method are in good agreement with acid digestion results. Complementary morphometric studies on void shapes have given new information about the heterogeneous void distribution in the specimen and also on the statistical void size distribution versus polymerization conditions
Halitim, Foudil. "Etude des propriétés mécaniques et analyses physicochimiques de l'alumine polycristalline implantée par différents ions métalliques (Ti,Cr,Ni)". Lyon, INSA, 1994. http://www.theses.fr/1994ISAL0005.
Pełny tekst źródłaIon implantation is among the most recent technics for surface treatment used to improve mechanical properties of ceramics materials. The study of ion implantation in polycristalline alumina with titanium, chromium and nickel, has been undertaken for two principal objectives : The first one, the study of the mechanical properties such as the hardness and the toughness by Vickers indentation method, show the improve of these properties in relation with the different parameters used ( fluence, temperature of heat treatment ). The second one, a physico-chemical study of the treated surface using SEM and XRD techniques to explain the evolution of the mechanical properties of ion implanted surface and correlate them with the hardness and toughness parameters obtained from Vickers indentation of the sample
Haddad, Mohamed. "Développement d'un procédé d'enroulement filamentaire adapté aux matériaux composites sandwich et caractérisation mécanique des matériaux". Thesis, Paris, ENSAM, 2017. http://www.theses.fr/2017ENAM0031.
Pełny tekst źródłaComposite materials, and especially sandwich structures, have been studied for decades. Indeed, the association between lightness and resistance of these structures leads to the development of their use. Their manufacturing method and their characterization remain as essential points in most studies. This work is part of the FUI SOLLICITERN project, which aims to design a composite water treatment tank for vehicles intended for this purpose. As a first step, and based on the classical filament winding principal, we aim to search designs that are best adapted to the fabrication of a curved sandwich material on a cylindrical mandrel, while respecting the process parameters of and their influence on structural properties. Since an optimal solution was validated, the constituent materials were studied by measuring mechanical properties. The objective is to help our industrial partner to validate a manufacturing solution and verify that such properties are the expected ones. For that, several static and dynamic characterizations were carried out on curved samples manufactured by the optimized process designed for our application. This part includes various experimental tests in order to validate the structure behavior with the most appropriate dimensions and material combinations, taking into account the manufacturing process. At the end, the best structural configuration is retained for the first tank prototype fabrication
Chabchoub, Manel. "Contributions à la mécanique de la rupture des matériaux composites thermoplastiques à haute température : analyses expérimentales et numériques". Thesis, Normandie, 2017. http://www.theses.fr/2017NORMIR18/document.
Pełny tekst źródłaThe present work was aimed at investigating the fracture mechanics in woven-ply TP (PPS) based laminates at T > Tg/c/pps. A fractography analysis and microscopic observations of fracture surfaces were used to apprehend the damage mechanisms in C/PPS at high temperature (HT) in the presence of a crack. For quasi-isotropic laminates (elastic brittle behavior), several techniques were used to investigate the tenacity at initiation and propagation. In particular, the acoustic emission showed to be particularly relevant as it allows to detect the crack initiation, propagation but also to follow the evolution of the damage. For cross-ply laminates (ductile behavior), an approach based on the calculation of integral J using the load separation method was used. This method showed its capability to provide the J-R curves of composites with very ductile HT behavior for different crack length over specimen width ratios a/W. Numerically, a linear spectral viscoelastic model and a generalized Norton viscoplastic model were used to account for the time-dependent behavior of C/PPS composite laminates at HT. To precisely evaluate the fracture parameters in TP-based laminates, a study on the mesh type and its refinement was carried out. Finally, based on the selected mesh and using the finite element code Cast3m, the Gθ method was applied in order to test its capability to determine J for different loading levels
Książki na temat "Analyses de matériaux extraterrestres"
Chimie et Physique Appliquées Aux Travaux Publics: Analyses et Essais des Matériaux de Construction. Creative Media Partners, LLC, 2022.
Znajdź pełny tekst źródłaRegert, Martine, i Maria Filomena Guerra, red. Physico-chimie des matériaux archéologiques et culturels. Editions des archives contemporaines, 2016. http://dx.doi.org/10.17184/eac.9782813001924.
Pełny tekst źródłaCzęści książek na temat "Analyses de matériaux extraterrestres"
Janssens, Koen. "Chapitre 4 : Matériaux du patrimoine et altération. Analyses par rayonnement synchrotron". W La chimie et l'art, 97–114. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0884-7-006.
Pełny tekst źródłaJanssens, Koen. "Chapitre 4 : Matériaux du patrimoine et altération. Analyses par rayonnement synchrotron". W La chimie et l'art, 97–114. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0884-7.c006.
Pełny tekst źródłaVERITÀ, Marco, i Isabelle BIRON. "Le plomb dans les recettes du Moyen Âge et de la Renaissance". W Le plomb dans les matériaux vitreux du patrimoine, 123–37. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9076.ch5.
Pełny tekst źródłaVAN HAM-MEERT, Alicia, i Patrick DEGRYSE. "Les isotopes du plomb pour l’étude des verres anciens". W Le plomb dans les matériaux vitreux du patrimoine, 25–41. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9076.ch2.
Pełny tekst źródłaBlanc-Bijon, Véronique. "L’emblema d’Apollon et de Marsyas (Cap d'Agde) : étude iconographique et technique – analyses des matériaux". W « Bronzes grecs et romains, recherches récentes » — Hommage à Claude Rolley. Publications de l’Institut national d’histoire de l’art, 2012. http://dx.doi.org/10.4000/books.inha.3902.
Pełny tekst źródłaRaporty organizacyjne na temat "Analyses de matériaux extraterrestres"
Dolby, G. Palynological analysis of Carboniferous outcrop and corehole samples from the 1993–1995 Magdalen Basin NATMAP Project, with updated data files, locality data, and lists of taxa identified, Prince Edward Island, Nova Scotia, New Brunswick, and Quebec. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/pcqvf1214e.
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