Academic literature on the topic 'Contrôle cinétique ou thermodynamique'
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Journal articles on the topic "Contrôle cinétique ou thermodynamique"
Pourbaix, M., and P. Van Rysselberghe. "Le Comité International de Thermodynamique et de Cinétique Electrochimiques (C.I.T.C.E.)." Electrochimica Acta 45, no. 15-16 (May 2000): XIII—XVI. http://dx.doi.org/10.1016/s0013-4686(00)00349-2.
Full textBelaid, Kumar Djamel, and Smaïl Kacha. "Étude cinétique et thermodynamique de l’adsorption d’un colorant basique sur la sciure de bois." Revue des sciences de l’eau 24, no. 2 (October 4, 2011): 131–44. http://dx.doi.org/10.7202/1006107ar.
Full textBrahim, Khemaies, Kais Antar, Ismail Khattech, and Mohamed Jemal. "Etude thermodynamique et cinétique de l’attaque de la fluorapatite par l’acide phosphorique." Annales de Chimie Science des Matériaux 31, no. 5 (October 31, 2006): 611–20. http://dx.doi.org/10.3166/acsm.31.611-620.
Full textBöeseken, J. "La Théorie de la Dislocation au Point de vue Thermodynamique et Cinétique." Recueil des Travaux Chimiques des Pays-Bas 46, no. 8 (September 3, 2010): 574–81. http://dx.doi.org/10.1002/recl.19270460804.
Full textBaudu, Michel, Gilles Guibaud, David Raveau, and Pierre Lafrance. "Prévision de l'adsorption de molécules organiques en solution aqueuse en fonctions de quelques caractéristiques physico-chimiques de charbons actifs." Water Quality Research Journal 36, no. 4 (November 1, 2001): 631–57. http://dx.doi.org/10.2166/wqrj.2001.034.
Full textBrahim, K., I. Khattech, J. P. Dubès, and M. Jemal. "Etude cinétique et thermodynamique de la dissolution de la fluorapatite dans l’acide phosphorique." Thermochimica Acta 436, no. 1-2 (October 2005): 43–50. http://dx.doi.org/10.1016/j.tca.2005.06.019.
Full textVacquier, G., and A. Casalot. "Etude thermodynamique et cinétique du transport en phase vapeur de NbSe2 par l'iode." Journal of Crystal Growth 130, no. 1-2 (May 1993): 259–68. http://dx.doi.org/10.1016/0022-0248(93)90860-y.
Full textClement, A., B. Fritz, and B. Made. "Modélisation thermodynamique et cinétique des réactions diagénétiques dans les bassins sédimentaires. Présentation du modèle géochimique KINDISP." Revue de l'Institut Français du Pétrole 49, no. 6 (November 1994): 569–602. http://dx.doi.org/10.2516/ogst:1994037.
Full textMénard, Robert, and Miklos Zador. "Étude cinétique et thermodynamique de l'interaction d'un complexe de Pd(II) avec l'inosine et l'acide polyinosinique." Canadian Journal of Chemistry 66, no. 1 (January 1, 1988): 178–83. http://dx.doi.org/10.1139/v88-028.
Full textWallach, J. "Chimie Generale — Travaux Dirigés Vol 1 Equilibres (pp 244) Vol 2 Structure — Cinétique — Thermodynamique (pp 224)." Biochemical Education 15, no. 3 (July 1987): 159. http://dx.doi.org/10.1016/0307-4412(87)90058-6.
Full textDissertations / Theses on the topic "Contrôle cinétique ou thermodynamique"
Zrelli, Kais. "Modulation de température en système réactif : application à la titration sélective sous contrôle cinétique et à la détermination de mécanismes réactionnels." Paris 6, 2011. http://www.theses.fr/2011PA066650.
Full textWe developed a powerful analytical protocol to detect and quantify a given reactive target in a mixture. The selectivity of the species identification relies on the dynamics of interaction between the target and a probe, revealed by thermal modulation. The chemical system that we chose in our work is a pair of complementary oligonucleotides whose temporal response to thermal modulation was followed by epifluorescence microscopy. Temperature modulation which was generated by Joule effect in a microfluidic device led to provide the rate constants involved in the hybridization reaction. The quadrature delayed signal originating from a model reactive mixture submitted to a periodic thermal excitation was subsequently used to titrate a targetted strand of DNA in a mixture of oligonucleotides with a good accurancy. This method is reliable to detect single nucleotide polymorphism. We aditionally introduce a protocol for analysing reactions mechanisms also based on temperature modulation. We were able to determine the mechanisms of hybridization and extract the kinetics and thermodynamic constants
Gaillard, Fabrice. "Contrôles thermodynamiques et cinétiques des états d'oxydation du fer dans les liquides silicatés magmatiques : Expérimentation, Modélisation, Applications et simulations." Phd thesis, Université d'Orléans, 2001. http://tel.archives-ouvertes.fr/tel-00002091.
Full text1- Modélisation des équilibres redox dans les liquides silicatés :
Ø Analyse de la base de données bibliographique
Ø Etude expérimentale et extension de la base de données vers des systèmes hydratés et oxydés
Ø Modélisation des propriétés thermodynamiques du fer ferreux et ferrique
En retombés pratiques, le modèle thermodynamique que nous proposons peut être utilisé directement à partir d'assemblages naturels verre-magnétite comme géothermomètre ou géobaromètre à oxygène. Aussi, les équilibres Fe3+/Fe2+ peuvent être calculés pour une large gamme de compositions et de conditions. Des applications mettant en évidence la précision de la méthode sont exposées.
2- Cinétiques d'oxydation-reduction du fer dans les liquides silicatés hydratés :
Ø Etudes expérimentales
Ø Modélisation
Différents mécanismes redox sont mis en évidence. Il en ressort que la mobilité d'espèces volatiles telles que H2 ne semble pas un facteur exerçant un contrôle significatif sur l'évolution redox d'un magma transitant dans la croûte. Des équilibres redox internes tels que les équilibres magnétite-liquide semblent être les facteurs prédominants. En revanche, en régime de percolation d'un basalte hydraté dans une péridotite, des échanges redox d'H2 conduisent à une oxydation significative du magma pouvant expliquer le caractère oxydé des laves d'arc.
Rossi-Gendron, Caroline. "Dynamic DNA origamis as isothermal supramolecular machines : melting dynamics, photocontrol and isothermal folding." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS522.
Full textDNA origamis and Single Stranded Tiles (SST) appear to be two of the most promising components of the DNA nanotechnology field in terms of possible designs and applications. In this thesis, we explored the thermodynamic and kinetic aspects underlying DNA nanostructures formation as well as new practical ways to build dynamic programmable nano-objects. Notably, the study of the formation process evidenced the unnecessary presence of magnesium ions or buffering molecules in the medium, and new formation conditions have been described. The melting process triggered by temperature elevation was characterised using a new quantified gel electrophoresis method evidencing for the first time a non-monotonous behaviour and calling for a new definition of DNA origami melting temperature. Both formation and melting process were furthermore demonstrated to be controllable by light using AzoDiGua, a photosensitive DNA intercalator previously developed by our group. This allowed us to observe for the first time a light-controlled hybridisation / dehybridisation process within individual origamis at constant temperature and thus achieve a controlled motion at the nanoscale. We also established an original method for the isothermal formation of DNA origamis and SST at constant room temperature and without the presence of any denaturating agent. This allowed us to observe for the first time and in situ the isothermal folding of individual origamis, thus evidencing that origamis can reach their final equilibrium shape following a variety of folding pathways
Reynier, Yvan. "Thermodynamique et cinétique d'électrodes pour batteries lithium-ion." Grenoble INPG, 2005. http://www.theses.fr/2005INPG0039.
Full textStructural changes in lithium ion battery electrodes are a central issue to understand their electrochemical behavior. In this study a new system using the open circuit voltage evolution as a function of temperature was developed to measure the thermodynamics of lithium intercalation. X-ray diffractometry was also used to correlate the thermodynamic profiles to the structure. Clear results also showed that liquid like stage 2 appears at LiC24. The effect of the graphitization degree on lithium intercalation was also considered and clarified. The hexagonal phase in LixCoO2 was found to extend up to x~0. 83 instead of 0. 75 as previously thought. A detailed survey of the possible sources of entropy was carried out for this compound. The effect of over stoichiometry in LiMn2O4 was also studied. The open circuit voltage method can give valuable information on the structural evolution of electrode materials and is easy to setup, making it an interesting mean of structural characterization
Haddou, Marie. "Complexes de polyélectrolytes : Morphologies, cinétique et thermodynamique d'assemblage." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0031.
Full textComplexes of polyelectrolytes (PECs) are oppositely charged polymers assemblies held together by electrostatic interaction. As the non-covalent assembly of macromolecules/colloids in solution has been thoroughly investigated over the last decade with a particular emphasis put on the morphology of the final aggregates as a function of the building blocks-chemistry, the objective of this thesis is to come to a better understanding of the influence of interaction strength between polyelectrolytes on complexes morphologies, as well as kinetics and thermodynamics of the complexation. For this study, weakly and strongly interacting systems given rise to coacervate and precipitate phases has been elected. Those systems have been studied on a wide charge ratio scale (Z[+]/[-]) to span several physical states of the PECs (soluble and colloidal PECs, dense phases). Morphologies of assemblies are assessed by microscopy (optical, fluorescence, atomic force) and scattering techniques (neutron, light). Kinetics and thermodynamics of the complexation process are studied by use of a stopped-flow mixing device and an isothermal titration calorimeter. Results gave us keys to discriminate strongly interacting systems from weakly interacting ones. In particular, the ‘strong systems’ are showed to be non-equilibrium assemblies, ie. the formulation pathway or the way these different macromolecules are coming into contact is then a key step. Another important aspect that could explain the complexation process behavior is the hydration energy of the polyelectrolytes. Calorimetry measurements have been performed for numerous polyelectrolytes and then correlated to complexes properties
Delcourt, Olivier. "Effet de taille et bistabilité thermodynamique dans le cyanoadamantane." Lille 1, 1993. http://www.theses.fr/1993LIL10086.
Full textGiudici-Orticoni, Marie-Thérèse. "Approche thermodynamique de la coopérativité cinétique des enzymes oligomériques." Aix-Marseille 2, 1990. http://www.theses.fr/1990AIX22025.
Full textGarnier, Thomas. "Transfert d'échelle dans la modélisation thermodynamique et cinétique des alliages." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00784326.
Full textAlberti, Patrizia. "Étude thermodynamique et cinétique de triplexes et de quadruplexes d'ADN." Paris, Muséum national d'histoire naturelle, 2003. http://www.theses.fr/2003MNHN0008.
Full textWe have studied the dynamics of DNA three- and four-stranded structures. A kinetic study by surface plasmon resonance led us to the elucidation of a directional mechanism for triple-helix formation, probably due to the right-handedness of the target duplex. The DNA structural polymorphism also allows the realisation of systems capable of performing movements. We have realised a DNA system accomplishing an extension-contraction movement based on the interconversion between a double-helix and a G-quadruplex. The equilibrium between different DNA possible conformations may be modulated by small molecules specifically recognising a given DNA structure. In particular, the stabilisation of G-quadruplexes at telomeres represents a potential therapeutic approach to inhibit telomerase, an enzyme active in most of cancer cells. In order to identify G-quadruplexes specific ligands, we have explored the structural selectivity of different DNA binding molecules by a competition dialysis assay
Hodaj, Fiqiri. "Thermodynamique et cinétique des échanges métal-laitier en métallurgie d'élaboration." Grenoble INPG, 1988. http://www.theses.fr/1988INPG0081.
Full textBooks on the topic "Contrôle cinétique ou thermodynamique"
Grécias, Pierre. Exercices et problèmes de thermodynamique physique: Abrégé de cours formulaire, questionnaire tests d'auto-contrôle, exercices et problèmes de concours corrigés. Paris: Lavoisier, 1991.
Find full textDubois. Thermodynamique, équilibres, cinétique et chimie métallurgique. Ellipses Marketing, 1998.
Find full textFabre. Thermodynamique et cinétique chimique: Résumés de cours et exercices corrigés. Ellipses Marketing, 1998.
Find full textGaboriaud. Thermodynamique: Éléments fondamentaux de l'énergétique et de la cinétique chimique. Ellipses Marketing, 1998.
Find full textBook chapters on the topic "Contrôle cinétique ou thermodynamique"
"9 – CONTRÔLE DE L’ACTIVITÉ ENZYMATIQUE." In Cinétique enzymatique, 293–328. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0116-9-010.
Full text"9 – CONTRÔLE DE L’ACTIVITÉ ENZYMATIQUE." In Cinétique enzymatique, 293–328. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0116-9.c010.
Full text"2 – LA THERMODYNAMIQUE ET LA THÉORIE DES VITESSES ABSOLUES." In Cinétique enzymatique, 25–54. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0116-9-003.
Full text"2 – LA THERMODYNAMIQUE ET LA THÉORIE DES VITESSES ABSOLUES." In Cinétique enzymatique, 25–54. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0116-9.c003.
Full text"3. Stabilité thermodynamique et cinétique globale de transformation." In Du verre au cristal, 49–76. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1064-2-009.
Full text"3. Stabilité thermodynamique et cinétique globale de transformation." In Du verre au cristal, 49–76. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1064-2.c009.
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