Добірка наукової літератури з теми "RMN à température variable"
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Статті в журналах з теми "RMN à température variable"
Moufti, Ahmed, and Mohammed Mountadar. "Lessivage des fluorures et des métaux a partir d'une cendre à charbon." Water Quality Research Journal 39, no. 2 (May 1, 2004): 113–18. http://dx.doi.org/10.2166/wqrj.2004.018.
Повний текст джерелаFelsen, M. F., M. Mottot, and P. Petrequin. "Fatigue et fluage à température variable prévision dans le temps." Matériaux & Techniques 74, no. 11-12 (1986): 473–79. http://dx.doi.org/10.1051/mattech/198674110473.
Повний текст джерелаBenmansour, Abdeldjellil, and Mohammad Hamdan. "Simulation du Stockage de l'Energie Thermique dans un Lit Fixe de Sphères Contenant un Matériau à Changement de Phase." Journal of Renewable Energies 4, no. 2 (December 31, 2001): 125–34. http://dx.doi.org/10.54966/jreen.v4i2.1004.
Повний текст джерелаCharabidze, D., A. Veremme, G. Morvan, V. Hedouin, and D. Gosset. "Modélisation de la température rectale post-mortem en environnement thermique variable." La Revue de Médecine Légale 1, no. 2 (August 2010): 61–65. http://dx.doi.org/10.1016/j.medleg.2010.07.002.
Повний текст джерелаGiuntini, J. C., A. Jabobker, and J. V. Zanchetta. "Etude de l'interaction eau-kaolinite par mesure des permittivites complexes." Clay Minerals 20, no. 3 (September 1985): 347–65. http://dx.doi.org/10.1180/claymin.1985.020.3.07.
Повний текст джерелаLetellier, M. "RMN du deutérium sur des suspensions. Application à une boue de forage. Etude en température et en fréquence d'une argile à grands feuillets." Revue de l'Institut Français du Pétrole 53, no. 4 (July 1998): 515–19. http://dx.doi.org/10.2516/ogst:1998045.
Повний текст джерелаMagne, Laurent, Nicolas Lecoq, Joël Rodet, Stéphane Chédeville, Caroline Fournial, and Jean-Pierre Viard. "Les inversions des circulations d’air dans une grotte de la craie à une entrée. Exemple de la grotte des Petites Dales (Normandie, France)." Karstologia : revue de karstologie et de spéléologie physique 69, no. 1 (2017): 47–56. https://doi.org/10.3406/karst.2017.3115.
Повний текст джерелаMiranda, Gonzalo, and Laura Luna. "Tumor neuroendocrino ileal con síndrome carcinoide, patología de difícil diagnóstico y pronóstico variable." Anales de la Facultad de Medicina 76, no. 2 (July 10, 2015): 193. http://dx.doi.org/10.15381/anales.v76i2.11147.
Повний текст джерелаMICHALET-DOREAU, B. "Aliments concentrés pour ruminants : dégradabilité in situ de l’azote dans le rumen." INRAE Productions Animales 5, no. 5 (December 2, 1992): 371–77. http://dx.doi.org/10.20870/productions-animales.1992.5.5.4252.
Повний текст джерелаBouzid, 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.
Повний текст джерелаДисертації з теми "RMN à température variable"
Yilmazer, Senem. "Études physicochimiques de N-acylaminoacides et amides gras comme oléogélateurs." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAE022.
Повний текст джерелаIn order to gel the oils, we can use organogelators: these small compounds self-assemble into fibrillar networks, thus providing the oils with mechanical properties close to solid. These compounds are used in the food applications to replace animal fats, negative for health, with healthier vegetable oils; in cosmetics they are used for oil-based formulations. This thesis focuses on the development of new oleogelators, endogenous and naturally assimilable compounds. We studied the thermodynamic and rheological properties of their gels in edible oils and established the c-T phase diagrams of these systems. The structure of the aggregates was studied by microscopy and X-ray scattering. The results show the existence of gel-gel transitions, due to polymorphism of the aggregates. This polymorphism explains how the properties vary and can be controlled with thermal history. To establish the phase diagrams more quickly and accurately than by DSC and rheology, we optimized the use of NMR at variable temperature in a deuterated oil. The combination of these approaches improves the optimization of the gel properties for the targeted applications
Ben, Cheikh Ahmed. "Elastoviscoplasticité à température variable." Paris 6, 1987. http://www.theses.fr/1987PA066258.
Повний текст джерелаPauvert, Olivier. "Etude structurale de sels fondus d'intérêts nucléaires par RMN et EXAFS haute température." Phd thesis, Université d'Orléans, 2009. http://tel.archives-ouvertes.fr/tel-00517360.
Повний текст джерелаMachado, Kelly. "Chimie des Bains pour l’Electrolyse de l’Aluminium : Étude RMN Haute Température et Modélisation." Thesis, Orléans, 2017. http://www.theses.fr/2017ORLE2054/document.
Повний текст джерелаThis thesis deals with the structural study of molten fluorides mixtures used for aluminium production by electrolysis. This process is obtained by dissolving alumina (Al₂O₃) in a molten cryolite bath (NaF-AlF₃ plus some additives) at 960°C. In order to obtain input data for the electrokinetic modeling of transport phenomena during the process, a better description of speciation in baths as a function of their composition and temperature is required.To determine this in situ speciation, we developed an original approach combining high temperature nuclear magnetic resonance (NMR) spectroscopy with Molecular Dynamics (MD) simulations coupled with first principle calculations. Based on the density functional theory (DFT), it was possible to calculate the interaction parameters involved in NMR experiments and to evaluate the quality of the models derived from MD when compared to the experimental data.The measurements and simulations carried out in the MF-AlF₃ binary systems (M = Na or K) confirmed the presence of F- and anionic species [AlFₓ]³‾ˣ with a lifetime between 5 and 25 ps. The probability of forming dimers [Al2Fm]6-m is less than 10%. Regardless of alkali, the addition of alumina in these systems affects the proportion of AlF5²‾ species to form oxyfluoroaluminates: [Al₂OF6] ²‾, [Al₂OF8]⁴‾, [Al₂O₂F4] ²‾, [Al₂O₂F6]⁴‾ et [Al₂O₃F₂]²‾. The latter are little influenced by the presence of CaF₂. By partially dissociating, this contributes to modifying the chemical equilibria towards the more basic media and to increasing the average coordination of the aluminium ions
Nuta, I. "Étude par RMN à Haute Température de liquides fluorés dans le système cryolithe/aluminium." Phd thesis, Université d'Orléans, 2005. http://tel.archives-ouvertes.fr/tel-00594641.
Повний текст джерелаNuta, Ioana. "Etude par RMN à haute température de liquides fluorés dans le système cryolithe-aluminium." Orléans, 2005. http://www.theses.fr/2005ORLE2057.
Повний текст джерелаBobroff, Julien. "Etude par RMN des corrélations magnétiques dans les supraconducteurs à haute température critique: effets des impuretés." Phd thesis, Université Paris Sud - Paris XI, 1997. http://tel.archives-ouvertes.fr/tel-00001972.
Повний текст джерелаBaudin, Emmanuel. "Dynamique RMN non linéaire et renversement temporel dans les mélanges d'3He-4He hyperpolarisés à basse température." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2010. http://tel.archives-ouvertes.fr/tel-00623612.
Повний текст джерелаMaksoud, Louis. "Couplage RMN et rayonnement synchrotron à haute température pour l'étude de fluorures fondus : application aux fluorures de zirconium." Phd thesis, Université d'Orléans, 2013. http://tel.archives-ouvertes.fr/tel-00954536.
Повний текст джерелаMaksoud, Louis. "Couplage RMN et rayonnement synchrotron à haute température pour l’étude de fluorures fondus : application aux fluorures de zirconium." Thesis, Orléans, 2013. http://www.theses.fr/2013ORLE2031/document.
Повний текст джерелаMolten fluorides are used in Molten Salt Reactors MSR such as the non moderated fast reactor MSFR, where the molten salt LiF-ThF4 is the fuel and the coolant. The formation of fission products (FP) such as lanthanides, during the reactor operation, possibly modifies the physicochemical properties of the melt. It is therefore important to characterize the melt from the structural and the dynamics point of view in order to determine its properties. Because of problems related to the radioactivity of thorium, as well as requirements related to spectroscopic methods, the system studied in this thesis is the LiF-ZrF4-LaF3 (zirconium and lanthanum are possible FP). The approach followed in this thesis combines measurements by NMR spectroscopy and EXAFS at 850 °C with molecular dynamics simulations. In the molten salt, we have shown the existence of zirconium and lanthanum complexes with different coordination numbers, whose proportions depend on the composition. Depending on the content of ZrF4, [ZrF7]3- species are dominant but change slightly and are further connected between each other’s via bridging fluorine. The addition of LaF3 to the mixture stabilizes the 7 coordination number around the zirconium and tends to enrich the environment of lanthanum with fluorides. A medium-range order is established between the various complexes containing zirconium and lanthanum due to bridging fluorine. Species dynamics is slower when the amount of either ZrF4 or LaF3 is higher. We noted a significant effect on the structure and dynamics of species starting 10 mol%. LaF3 added to the medium. The data obtained by this novel approach concerning the chemistry of the molten salt in MSR containing FP, are fundamental to improve the separation of these products and optimize the process
Тези доповідей конференцій з теми "RMN à température variable"
Piedra Marín, Gilberto, Leonel González Solís, Jacqueline Herrera Núñez, Roy Soto Fallas, and Henry Borbón Alpízar. "Síntesis de precursores tipo 1,8-naftilimida: propiedades y usos potenciales para la detección selectiva de metales en agua." In I Congreso Internacional de Ciencias Exactas y Naturales. Universidad Nacional, 2019. http://dx.doi.org/10.15359/cicen.1.46.
Повний текст джерела"ENFERMEDAD DE MARCHIAFAVA BIGNAMI Y SÍNTOMAS NEUROPSIQUIÁTRICOS: REVISIÓN DE LA LITERATURA Y REPORTE DE CASO." In 23° Congreso de la Sociedad Española de Patología Dual (SEPD) 2021. SEPD, 2021. http://dx.doi.org/10.17579/sepd2021p075v.
Повний текст джерелаЗвіти організацій з теми "RMN à température variable"
Prud'homme, Pamela, Simon Aubin, and Pierre-Luc Cloutier. Revue de littérature sur la composition des poussières de bois brûlé. IRSST, December 2024. https://doi.org/10.70010/wmat6356.
Повний текст джерела