Letteratura scientifica selezionata sul tema "Phase minérale"
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Articoli di riviste sul tema "Phase minérale":
Faye, Bernard, e Mohammed Bengoumi. "Données nouvelles sur le métabolisme des principaux éléments-traces chez le dromadaire". Revue d’élevage et de médecine vétérinaire des pays tropicaux 50, n. 1 (1 gennaio 1997): 47–53. http://dx.doi.org/10.19182/remvt.9601.
Chevereau, Élodie, Lionel Limousy, Patrick Dutournié e Patrick Bourseau. "Réalisation et modification des propriétés de sélectivité d’une membrane minérale d’ultrafiltration : étude de la rétention de solutions salines". Revue des sciences de l’eau 25, n. 1 (28 marzo 2012): 21–30. http://dx.doi.org/10.7202/1008533ar.
MESCHY, F., F. FAURIE e L. GUEGUEN. "Bilans minéraux et disponibilité du calcium chez des moutons recevant des pulpes de betteraves". INRAE Productions Animales 6, n. 1 (27 febbraio 1993): 47–51. http://dx.doi.org/10.20870/productions-animales.1993.6.1.4186.
Gautret, Pascale. "Organisation de la phase minérale chez Vaceletia crypta (Vacelet)Démosponge, Sphinctozoaire actuelle. Comparaison avec des formes aragonitiques du Trias de Turquie". Geobios 18, n. 5 (gennaio 1985): 553–71. http://dx.doi.org/10.1016/s0016-6995(85)80057-7.
Reyx, Jean, e François Ruhlmann. "Étude métallographique des différentes associations minérales et caractérisation chimique des minéraux uranifères du gisement de Cigar Lake (Saskatchewan, Canada)". Canadian Journal of Earth Sciences 30, n. 4 (1 aprile 1993): 705–19. http://dx.doi.org/10.1139/e93-057.
Yakymchuk, Chris. "Applying Phase Equilibria Modelling to Metamorphic and Geological Processes: Recent Developments and Future Potential". Geoscience Canada 44, n. 1 (20 aprile 2017): 27. http://dx.doi.org/10.12789/geocanj.2017.44.114.
Dauphin, Yannicke, e Gwenael Kervadec. "Comparative diagenetic effects on mineral and proteic soluble phases of shells from coleoid cephalopod molluscs". Palaeontographica Abteilung A 232, n. 4-6 (22 novembre 1994): 85–98. http://dx.doi.org/10.1127/pala/232/1994/85.
de Vernal, Anne, Carolle Mathieu e Pierre Gangloff. "Analyse stratigraphique d’un lobe de gélifluxion des Torngats Centrales, Labrador". Géographie physique et Quaternaire 37, n. 2 (29 novembre 2007): 205–10. http://dx.doi.org/10.7202/032515ar.
Tenyang, Noël, Roger Ponka e Hilaire Macaire Womeni. "Effect of local hot smoking on proximate composition, lipid oxidation, fatty acid profile and minerals content of Chrysichthys nigrodigitatus from Lake Maga in Cameroon". International Journal of Biological and Chemical Sciences 14, n. 4 (17 agosto 2020): 1124–27. http://dx.doi.org/10.4314/ijbcs.v14i4.5.
Riviere, M., M. Rautureau, G. Besson, M. Steinberg e M. Amouri. "Complementarite des rayons X et de la microscopie electronique pour la determination des diverses phases d'une argile zincifere". Clay Minerals 20, n. 1 (marzo 1985): 53–67. http://dx.doi.org/10.1180/claymin.1985.020.1.05.
Tesi sul tema "Phase minérale":
Marchand, Élodie. "Etude des modifications post-mortem de la phase minérale la dentine sclérotique". Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILS056.
Introduction: in forensics fields, the identification of human remains is a recurrent problem. Estimating age at death is one of the criteria to be evaluated. In adults, the height of root dentin transparency is used. However, in archaeological material, this phenomenon appears to be inconsistent and related to changes in the appearance of sclerotic dentine. The aim of this study was to observe the changes in sclerotic dentin at different post-mortem intervals, focusing on the mineral part, which is the main component of this tissue and is likely to have more marked variations over longer post-mortem periods.Material and Method: The study included two parts (retrospective and prospective) with 21 monoradicular human teeth, three dating frome the 18th century from archaeological excavations and eighteen from donations of the body to science from the Faculty of Medicine of the University of Lille preserved in equivalent conditions and analyzed at different post-mortem intervals of 0, 1, 2 and 5 years. After resin embedding, the teeth were sectioned and polished, then analyzed by scanning electron microscope, completed by semi-quantitative analysis of calcium and phosphorus using EDS-X microanalysis, as well as broad detection of elements from the periodic table. We then carried out a crystallographic analysis using X-ray diffractometry.Results: The analysis showed the existence of tubular, chemical and crystallographic changes in the sclerotic dentin as a function of the post-mortem interval. Our scanning electron microscope study revealed a difference in the appearance of the tubules linked to an increase post-mortem interval: loss of the peritubular collar and obstruction of the tubule lumen by a hyperdense material. Microanalysis highlighted variations in phosphocalcic ratios among the different groups, notably at the cementum junction and more specifically in the canine, which could be a good predictive model for assessing post-mortem interval. Using diffractometry, we confirmed that the mineral phase of sclerotic dentin, whatever the post-mortem interval, was composed of hydroxyapatite crystals, with a better level of crystallinity in archaeological teeth compared with teeth with a 5-year post-mortem interval, but also between teeth with a 0 and 1 year post-mortem interval, compared with 2 years. Discussion: the differences observed could be due to post-mortem changes of the mineral phase of sclerotic dentin through demineralization and remineralization phenomena, resulting in variations in the size of hydroxyapatite crystals located in the intra-tubular zone and through the substitution of calcium by other elements, under the influence of chemical and/or bacterial action and therefore an influence of the tooth's environment (buccal and external). This work needs to be pursued, on the one hand by using imaging techniques that combine structural, chemical and crystallographic studies, such as transmission electron microscopy, and on the other hand by studying changes in collagen and non-collagenous proteins making mineral components more accessible to external factors. It would also be relevant to carry out analyses on teeth from post-mortem intervals of decades
Mustin, Christian. "Approche physico-chimique et modélisation de l'oxydation bactérienne de la pyrite par thiobacillus ferrooxidans : rôle déterminant de la phase minérale". Nancy 1, 1992. http://www.theses.fr/1992NAN10400.
Rupin, Fabienne. "Evaluation des propriétés microélastiques de l'os par microscopie acoustique : influence des phases minérale et organique". Paris 7, 2009. http://www.theses.fr/2009PA077052.
The detailed Knowledge of the determinant parameters of bone quality and the understanding of its modification during lifetime require the characterization of bone mechanical properties at various length scales. If the macro- or meso-scopic mechanical properties are easily accessible, the characterization of the micro- or nano-elasticity of bone remains challenging. Furthermore, thee determinant factors of bone microelasticity are not fully understood. We have developed and validated high resolution quantitative acoustic microscopy (SAM) to map tissue microelasticity. By combining SAM, nanoindentation (NI) and Synchrotron microtomography (SR-|jCT) on site matched regions, we obtained a good correlation betweern acoustic impedance (Z), elastic modulus derived from Z and NI modulus. Simultaneously, the degree of mineralization of bone (DMB) was found to be moderately correlated to bone elasticity. To determine the bone properties the contribute to changes in elasticity, SAM and synchrotron imaging techniques (SR-pCT and SAXS) were combined. We show that, despite a quasi-homogeneous DMB within the osteon, the acoustic impedance image displays a periodic variations consisting of alternating lamellae of high and low Z values, which strongly correlates to layers of high and low SAXS integrated intensity, reflecting changes in collagen fibrils orientation Finally, SAM was used to evaluate changes in tissular microelasticity of trabecular bone that underwent remodelling induced by mechanical loading. We show that bone tissue adaptation leads to an increase in tissular acoustic impedance that might reflect the rearrangement of collagen fibrils
Morvan-Chaillou, Katell. "Adsorption d'éléments sur des oxydes métalliques en phase aqueuse : applications à la métrologie de radioéléments et à la diminution de la radioactivité dans les eaux minérales". Nantes, 2002. http://www.theses.fr/2002NANT2098.
Garcia-Diaz, Eric. "Réactivité pouzzolanique des métakaolinites : Corrélations avec les caractéristiques minéralo-gitologiques des kaolinites". Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 1995. http://tel.archives-ouvertes.fr/tel-00843099.
Frischinger, Isabelle. "Etude de matériaux composites polymères comportant une phase dispersée liquide : extension aux matériaux alvéolaires polymères/charges minérales". Mulhouse, 1989. http://www.theses.fr/1989MULH0117.
Mosquet, Martin. "Polyoxyéthylènes à extrémité complexante : synthèses et applications comme dispersants de minéraux en phase aqueuse". Lyon 1, 1994. http://www.theses.fr/1994LYO10110.
Mędala, Marta. "Etudes des interactions entre les phases minérales constituant le ciment Portland et des solutions salines concentrées". Dijon, 2005. http://www.theses.fr/2005DIJOS061.
Nicoleau, Luc. "Interactions physico-chimiques entre le latex et les phases minérales constituant le ciment au cours de l'hydratation". Dijon, 2004. http://www.theses.fr/2004DIJOS047.
Sissman, Olivier. "Séquestration minérale du CO2 dans les basaltes et les roches ultrabasiques : impact des phases secondaires silicatées sur le processus de carbonatation". Paris, Institut de physique du globe, 2013. http://www.theses.fr/2013GLOB0001.
Rapporti di organizzazioni sul tema "Phase minérale":
Wojciechowski, M. J. Recherche et développement dans le secteur des minéraux. Natural Resources Canada/CMSS/Information Management, 1989. http://dx.doi.org/10.4095/331554.