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Статті в журналах з теми "Perte de propriétés"
Kociak, Mathieu, Luiz Henrique Galvão Tizei, Sophie Meuret, Hugo Lourenço-Martins, and Odile Stephan. "Spectromicroscopies électroniques : sonder les propriétés optiques de nanomatériaux avec des électrons rapides." Photoniques, no. 102 (May 2020): 39–43. http://dx.doi.org/10.1051/photon/202010239.
Повний текст джерелаCaillon, Adrien, and Jean-Yves Douet. "Le traitement chirurgical des ulcères de cornée." Le Nouveau Praticien Vétérinaire canine & féline 21, no. 88 (2024): 50–58. http://dx.doi.org/10.1051/npvcafe/2024035.
Повний текст джерелаJoseph, Jasmine. "Neuropathie optique présumée secondaire à la consommation de cocaïne par voie nasale : rapport de cas." Canadian Journal of Optometry 85, no. 4 (December 7, 2023): 19–29. http://dx.doi.org/10.15353/cjo.v85i4.5550.
Повний текст джерелаCariou, Jean-Pierre, and Ludovic Thobois. "Détection et analyse automatique des aérosols atmosphériques par lidar infrarouge." Photoniques, no. 97 (July 2019): 30–35. http://dx.doi.org/10.1051/photon/20199730.
Повний текст джерелаKumar, Shailendra, Ismita Nautiyal, and Shikhar Shukla. "Some physical properties of delignified and compressed Melia dubia wood." BOIS & FORETS DES TROPIQUES 341 (July 20, 2019): 71. http://dx.doi.org/10.19182/bft2019.341.a31758.
Повний текст джерелаHoëm, Ingjerd. "Remaining Kin over Time." Social Anthropology/Anthropologie Sociale 31, no. 3 (September 1, 2023): 102–16. http://dx.doi.org/10.3167/saas.2023.310308.
Повний текст джерелаVölkel, Pamela, Babara Dupret, Xuefen Le Bourhis, and Pierre-Olivier Angrand. "Le modèle poisson zèbre dans la lutte contre le cancer." médecine/sciences 34, no. 4 (April 2018): 345–53. http://dx.doi.org/10.1051/medsci/20183404016.
Повний текст джерелаBastianelli, Denis, and Laurent Bonnal. "Evaluation de la qualité des produits du canard gras." Revue d’élevage et de médecine vétérinaire des pays tropicaux 67, no. 3 (June 27, 2015): 135. http://dx.doi.org/10.19182/remvt.10176.
Повний текст джерелаDupuis, Fernande, Monique Lemieux, and Daniel Gosselin. "Conséquences de la sous-spécification des traits de Agr dans l'identification de Pro." Language Variation and Change 3, no. 3 (October 1991): 275–99. http://dx.doi.org/10.1017/s0954394500000582.
Повний текст джерелаMarpsat, Maryse. "Un avantage sous contrainte : le risque moindre pour les femmes de se trouver sans abri." Population Vol. 54, no. 6 (June 1, 1999): 885–932. http://dx.doi.org/10.3917/popu.p1999.54n6.0932.
Повний текст джерелаДисертації з теми "Perte de propriétés"
Nelayah, Jaysen. "Propriétés optiques de nanoparticules metalliques aux échelles sous-longueur d’onde." Paris 11, 2007. http://www.theses.fr/2007PA112331.
Повний текст джерелаFrom a fundamental point of view as well as for potential applications, understanding the srinking optical properties of metallic nanoparticles is crucial. In this manuscript, we showed on different metallic nanosystems, the possibility of mapping at the sub-wavelength scale the spatial variations of the electromagnetic fields associated to surface Plasmon resonances in the visible domain. This has been made possible by combining energy resolution improvements brought about during this thesis to low-loss electron energy loss spectroscopy (EELS) and the nanometer resolution accessible in a scanning transmission electron microscope. Experiments undertaken on triangular silver nanoprisms, gold nanodecahedra and dimers of triangular silver nanoprisms have enabled us to study, in particular, the correlation existing between the surface plasmons maps and the direction of the excitation its symmetry and the shapes of the nanoparticles. Moreover, using the recent link established between low-loss EELS signals and the local density of photonic states (this is a universal quantity analogous to the local density of electronis states measured in tunneling microscope), we have been able to analytically calculate and simulate the EELS response of a molecule in the presence of planar metallic surface and thus, verify the feasibility of single molecule EELS spectroscopy
Hambach, Ralf. "Théorie et Simulations numériques ab-initio des propriétés électroniques de nanostructures: vers la spectroscopie de perte d'énergie résolue spatialement." Phd thesis, Ecole Polytechnique X, 2010. http://pastel.archives-ouvertes.fr/pastel-00587080.
Повний текст джерелаNormand, Valéry. "Comportement rhéologique des gels de gélatine, relations propriétés-structures." Nancy 1, 1995. http://www.theses.fr/1995NAN10246.
Повний текст джерелаDesmarest, Cyrille. "Propriétés électromagnétiques de matériaux superparamagnètiques : préparation, et caractérisation magnétique et optique." Versailles-St Quentin en Yvelines, 2000. http://www.theses.fr/2000VERSA011.
Повний текст джерелаDupuy, Jean-Sébastien. "Identification des propriétés mécaniques de matériaux composites par analyse vibratoire." Phd thesis, Montpellier 2, 2008. http://www.theses.fr/2008MON20200.
Повний текст джерелаThe mechanical performance of composites depends not only on the characteristics of fillers and matrix used, but also on the quality of interface between these constituents. Thus, poor interfacial adhesion generally results in a decrease of the behavior of composite, which may be likened to an overall damage of the material. The purpose of this study is to propose a means of quick characterization of materials damage from mechanical vibrations analyses. Indeed, bad cohesion within thematerial can lead to friction phenomena, which tend to increase the damping level of its dynamic response. Several experimental techniques, some of which based on the analysis of the structural resonant frequencies, are presented in this study. The viscoelastic properties of particulate composites with polymer matrix are analyzed. Some design parameters of these model materials have been tuned, in order to create different damage levels. The results, particularly in regard to the loss factor, are interpreted from a comparison with simple analytical homogenization models
Saikaly, Wahib. "Etude par microscopie électronique du rôle de chaque étape du traitement thermomécanique sur la précipitation dans les aciers dual-phase microalliés au titane." Aix-Marseille 3, 1999. http://www.theses.fr/1999AIX30095.
Повний текст джерелаHaddad, Noël. "Étude des propriétés diélectriques des phases Mn+1AXn par spectroscopie de pertes d'énergies des électrons." Paris 11, 2009. http://www.theses.fr/2009PA112349.
Повний текст джерелаThe MAX phases are ternary carbides and nitrides which exhibit remarkable properties half way between metals end ceramics. In this work, we have measured the complex dielectric constant Ɛ(ω) as a function of the composition of the sample. The samples are thin films of single crystal grown by magnetron sputtering and bulk polycristals processed by hot isostatic pressure. The measurements have been performed by electron energy loss spectroscopy (EELS) in the infrated - soft x-ray range and by V-UV ellipsometry in the infrated-ultraviolet range (1. 6 to 5. 5 eV). The dielctric properties of the Ti2A1C and Ti2A1N samples are remarkably different with the crystallographic orientation. In particular, a shift of the energy position of the plasmon of Ti1A1C with respect to the orientation of the crystal is observed. The dielectric constants of thin films of Ti2GeC, Ti2SnC and V2GeC have also been determined. A empirical semi-classical Drude-Lorentz model is fitted to the experimental spectra enabled us to extract the microscopic parameters such as the relaxation times and the electron density and the lifetime of free electrons. In addition, we show that the DC conductivity is indeed anisotropic in these compounds, a fact which has not been possible to address so far on macroscopic measurements. The dielectric function has been modelled in the framework of the time dependant density functional theory. Our calculations showed that the various dielctric functions in Ti2A1C are clearly influenced by strong local effect created by the presence of the d band in this material
Dupuy, Jean-Sébastien. "Identification des propriétés mécaniques de matériaux composites par analyse vibratoire." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2008. http://tel.archives-ouvertes.fr/tel-00383234.
Повний текст джерелаThomas, Cédric. "Etude aux échelles atomique et nanométrique de la structure électronique du graphite exposé à l'hydrogène (atomes, ions, plasma) modèle des premières étapes de l'érosion chimique dans les tokamaks." Aix-Marseille 1, 2008. http://theses.univ-amu.fr.lama.univ-amu.fr/2008AIX11029.pdf.
Повний текст джерелаIn this report, we present a study of the physical properties (vibrational and electronic structures, surface morphology) of graphite surfaces subjected to hydrogen (or deuterium) flux considering atoms, ions or plasmas. We have used the following surface analysis techniques : scanning tunnelling microscopy (STM), high-resolution electron energy loss spectroscopy (HREELS) and low-energy electron diffraction (LEED). When graphite surfaces are exposed to atomic hydrogen, STM and HREELS data show a perturbation of the local density of states (LDOS) directly related to a surface perturbation. Thanks to DFT calculations performed in the laboratory, a model of hydrogen adsorption on a graphite surface has been developped. When graphite surfaces are previously bombarded, hydrogen-graphite ineraction seems stronger. Plasma experiments reveal a similitude concerning interaction mechanisms in comparison with atomic and ion bombardment experiments. A synergetic effect is also pointed out
Azoti, Wiyao Leleng. "Conception et amélioration des propriétés amortissantes des composites auxétiques basés sur l'utilisation des outils de la micromécanique." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0218/document.
Повний текст джерелаThe design of composite (particles/fibers or structures) materials, consisting of auxetic reinforcements, with enhanced damping properties is studied herein. For such analysis, the auxetic behavior describing a negative Poisson's ratio needs to be understood as "structure effect" point of view than "material effect". Indeed, the "material effect" which treats of the topological and morphological textures of the composite constituents remains poorly documented in the literature. Based on the kinematic integral equation of Dederichs and Zeller, the design space of auxetic composite materials is explored initially through an analytical one-site formulation of the Mori-Tanaka micromechanics scheme. Then, more complex microstructures are investigated from micromechanics formalism as well as Finite Element Method (FEM) simulations. One can cite the multilayered hollow-cored microstructure and the microstructure describing a cluster of re-entrant ellipsoidal inclusions in which the interaction among them (inclusions) is taken into account. The results provided by these investigations show us for instance in the case of isotropic materials that auxeticity is achieved if and only if one of the material?s constituents (inclusion or matrix) is initially auxetic. Also, it is noticed in the case of ellipsoidal inclusions describing the re-entrant cluster that auxetic behavior can be recovered by introducing joints between inclusions. Otherwise, favorable issues are only expected with auxetic components. In addition to this preliminary analysis concerning the validity domain of auxetic behavior in composites, the effect of inserting auxetic reinforcements within a viscoelastic matrix for instance PolyVinylButyral (PVB) on the one hand, and the use of auxetic and viscoelastic layers in sandwich structures on the other hand, are studied. The response of these materials in terms of damping properties, such as the storage modulus and the loss factor are then identified and discussed versus non-auxetic (conventional) composite reinforcements
Книги з теми "Perte de propriétés"
Lands: Returned for sale by the treasurer of the United Counties of Huron, Perth and Bruce for arrears of tax, to the 1st January, 1850. [Goderich, Ont.?: s.n., 1986.
Знайти повний текст джерелаЧастини книг з теми "Perte de propriétés"
"Aménager la Perte de Propriété de Soi." In Entre itinérance et fin de vie, 47–60. Presses de l'Université du Québec, 2012. http://dx.doi.org/10.1515/9782760535169-004.
Повний текст джерела"3. Les tangentes et les sécantes: propriétés de la puissance d'un point pour les sections coniques." In Apollonius de Perge, Coniques - Tome 2.1: Livres II et III. Commentaire historique et mathématique, édition et traduction du texte arabe, edited by Roshdi Rashed, Micheline Decorps-Foulquier, and Michel Federspiel, 306–39. Berlin, New York: DE GRUYTER, 2010. http://dx.doi.org/10.1515/9783110217162.2.306.
Повний текст джерелаЗвіти організацій з теми "Perte de propriétés"
BACCELLI, François, Sébastien CANDEL, Guy PERRIN, and Jean-Loup PUGET. Grandes Constellations de Satellites : Enjeux et Impacts. Académie des sciences, March 2024. http://dx.doi.org/10.62686/2.
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