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Academic literature on the topic 'Conduction ionique – Effets de la température'
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Journal articles on the topic "Conduction ionique – Effets de la température"
Hammou, A. "Corrélation entre l'énergie d'activation de conduction ionique et la température de fusion des oxydes électrolytes solides." Journal de Chimie Physique 94 (1997): 1543–52. http://dx.doi.org/10.1051/jcp/1997941543.
Full textEl Bitar, N., and D. Le Bars. "Douleur et thermorégulation Les effets ambivalents de la morphine." Douleur et Analgésie 31, no. 1 (March 2018): 35–61. http://dx.doi.org/10.3166/dea-2018-0002.
Full textDissertations / Theses on the topic "Conduction ionique – Effets de la température"
Conflant, Pierre. "Corrélations propriétés-structure dans des conducteurs par ions oxygène dérivés de l'oxyde de bismuth." Lille 1, 1985. http://www.theses.fr/1985LIL10064.
Full textXu, Xinglong. "Contribution à l'étude des effets d'irradiation induits dans les polymères par des faisceaux d'ions." Lyon 1, 1987. http://www.theses.fr/1987LYO19032.
Full textFasquelle, Didier. "Développement de méthodes de caractérisations à larges gammes de fréquences et de températures : application à des matériaux : verres ioniques, diélectriques et ferroélectriques." Littoral, 2003. http://www.theses.fr/2003DUNK0099.
Full textGrasset, Frédéric. "Augmentation de la température de fonctionnement d'une pile à combustible par synthèse de nouveaux matériaux conducteurs protoniques." Montpellier 2, 2005. http://www.theses.fr/2005MON20025.
Full textMassengo, Joe͏̈l. "Effets des rayonnements [gamma] sur les propriétés de transport électrique dans les polymères électroactifs implantés." Limoges, 1998. http://www.theses.fr/1998LIMO0026.
Full textHussain, Raza. "Caractérisation multi-niveau de protéines laitières : influence de l'environnement ionique et de la température." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0100/document.
Full textThe overall objective of this work was to investigate the mechanisms of protein-salt interactions and linkage between milk proteins powders and milk proteins dispersions (5% w/v) mainly NMC and WPI under various ranges of ionic environments (distilled water, NaCl solution and CaCl2 solution. In the first phase, we investigated the influence of the ionic environments on milk proteins powders rehydration profiles. The second phase of this study includes the characterization of milk proteins dispersions in an aqueous ionic environment regarding changes in the protein: secondary structure (ß-sheet, alpha-helix, ß-turns and unordered structures), size, morphological features and surface hydrophobicity by using FTIR, TEM, and DLS with other complimentary techniques. In the last part, the functionality of whey proteins was studied by the combined effect of heat and different ratios of salts. For this purpose, the study was exclusively focalized in an aqueous ionic medium composed of NaCl (0.75-3%) at different temperatures (30-90°C). The results obtained from the first part showed two distinct rehydration behaviors depending on the salts type and concentration. For the NMC dispersions under salt increase, spherical micelles with an average size around 150 nm disintegrated in sub-micelles around 20-30 nm and more or less aggregated were observed by DLS and TEM. WPI dispersions in water were composed of well separated proteins by a spherical shape with two populations around 6 and 70 nm. Salt increase resulted in an aggregation of the proteins and the formation of denser aggregates. Moreover, a combined salt/heat resulted showed a stabilizing effect on the secondary structural elements of both Amide I and III bands and higher denaturation temperatures observed by FTIR and µDSC respectively. A size and morphological investigation showed a transition from spherical/compact protein aggregates to linear ones. Finally, this work demonstrated that whey protein functional properties depend on both salt and how heat treatment is applied
Khodjaoui, Abdelkarim. "Contribution à l'étude des propriétés diélectriques et optiques de matériaux pour l'optique non linéaire." Nancy 1, 1993. http://www.theses.fr/1993NAN10167.
Full textRahmoune, Mohammed. "Etude de films minces de fer déposés sur l'arseniure de gallium ; rôle de l'interface ; effets de la température et du mélange ionique." Poitiers, 1995. http://www.theses.fr/1995POIT2304.
Full textFau, Pierre. "Oxydes de manganèse semi-conducteurs et thermistances à coéfficient de température négatif (C. T. N. ) en couches minces élaborées par pulvérisation cathodique de cibles céramiques." Toulouse 3, 1993. http://www.theses.fr/1993TOU30088.
Full textFlandre, Xavier. "Nouvelles électrodes pour pile à combustible à oxyde solide et électrolyseur à haute température." Thesis, Lille 1, 2016. http://www.theses.fr/2016LIL10182/document.
Full textIn the current context, fossil energy resources decrease and become more expensive, in addition to environmental concern. In this frame, solid oxide fuel cells (SOFC) are a promising green alternative energy source. Reversibly used, this system can also allow storage of electricity produced intermittently through the electrolysis of water. However, several bottlenecks still remain in terms of performances and stability of materials currently used to improve their lifetime and decrease their working temperature. In this doctoral thesis, our contribution focused on two cathode materials for SOFCs, Ba2Co9O14 and Ca3Co4O9+δ, and compounds derived from La4Ti2O10 which may be relevant as anode material. Our study mainly focused on the understanding of the physicochemical mechanisms involved in these materials by using impedance spectroscopy. For cobaltites, this study has led to the identification of the limiting parameters and will help the future optimization of complete stacks with better performances. For the La4Ti2O10 derived phases with the cuspidine structure, a neutron scattering study confirmed the oxygen diffusion mechanisms in these materials. However, their conductivity and catalytic properties remain insufficient to hope to use these compounds as SOFC’s anode, unlike other lanthanum titanates which display a layered perovskite structure