Literatura científica selecionada sobre o tema "Milieux sulfurés"
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Artigos de revistas sobre o assunto "Milieux sulfurés"
THILL, C., E. MONTELESCAUT, P. ARIES, J. SAPIN-LORY, M. OULD-AHMED e I. DROUILLARD. "Intoxication à l’hydrogène sulfuré : revue de la littérature et implications en milieu militaire." Médecine et Armées Vol. 42 No. 2, Volume 42, Numéro 2 (1 de abril de 2014): 185–92. http://dx.doi.org/10.17184/eac.6993.
Texto completo da fonteNfissi, Samiha, Saida Alikouss, Youssef Zerhouni, Zouhir Baroudi e Mohamed Samir. "Alkaline amendment based of sludge pulp of sweets and clays: application to the tailings of the abandoned kettara mine (Morocco)". Annales de la Société Géologique du Nord, n.º 25 (1 de dezembro de 2018): 75–81. http://dx.doi.org/10.54563/asgn.637.
Texto completo da fonteDuffó, G. S., e J. R. Collet-Lacoste. "Effet du sulfure d’hydrogène sur l’entrée de l’hydrogène dans les aciers ferritiques en milieux acide". Revue de Métallurgie 94, n.º 2 (fevereiro de 1997): 249–58. http://dx.doi.org/10.1051/metal/199794020249.
Texto completo da fonteKua, Jeremy, e Nicole A. Miller. "Preliminary Free Energy Map of Prebiotic Compounds Formed from CO2, H2 and H2S". Life 12, n.º 11 (2 de novembro de 2022): 1763. http://dx.doi.org/10.3390/life12111763.
Texto completo da fonteAboulhassan, Moulay Abdelazize, Salah Souabi, Abdelrani Yaacoubi, Nourredine Zaim e Fatima Zohra Bouthir. "Les effluents de tannerie caractérisation et impact sur le milieu marin". Revue des sciences de l'eau 21, n.º 4 (20 de outubro de 2008): 463–73. http://dx.doi.org/10.7202/019168ar.
Texto completo da fonteAder, Magali, e Marc Javoy. "Diagenese précoce en milieu sulfuré réducteur une étude isotopique dans le Jurassique basai du Bassin parisien". Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 327, n.º 12 (dezembro de 1998): 803–9. http://dx.doi.org/10.1016/s1251-8050(99)80054-8.
Texto completo da fonteBellaouchou, A., A. Guenbour, A. Ben Bachir, L. Aries e F. Dabosi. "Alliage 904 L : comportement électrochimique en milieux phosphoriques pollués par les ions sulfures et fluorures en condition de corrosion-abrasion". Matériaux & Techniques 86, n.º 9-10 (1998): 21–29. http://dx.doi.org/10.1051/mattech/199886090021.
Texto completo da fonteTeigen, Levi M., Zhuo Geng, Michael J. Sadowsky, Byron P. Vaughn, Matthew J. Hamilton e Alexander Khoruts. "Dietary Factors in Sulfur Metabolism and Pathogenesis of Ulcerative Colitis". Nutrients 11, n.º 4 (25 de abril de 2019): 931. http://dx.doi.org/10.3390/nu11040931.
Texto completo da fonteMaujean, Alain. "The chemistry of sulphur in musts and wines". OENO One 35, n.º 4 (31 de dezembro de 2001): 171. http://dx.doi.org/10.20870/oeno-one.2001.35.4.1698.
Texto completo da fonteFerdinand, Yao Diby, Assale Fori Jean Paul, Alla Amani Jonas e Digbehi Zeli Bruno. "Caracterisasion Geochimique des Deblais du Substratum de la Baie du Banco, Abidjan, Basse Cote d‘Ivoire". European Scientific Journal, ESJ 19, n.º 36 (31 de dezembro de 2023): 124. http://dx.doi.org/10.19044/esj.2023.v19n36p124.
Texto completo da fonteTeses / dissertações sobre o assunto "Milieux sulfurés"
Guida, Manrique Leydy Carolina. "Mécanismes contrôlant la séquestration du gadolinium, du rhénium et du sélénium dans des conditions de faible teneur en oxygène". Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALU015.
Texto completo da fonteTrace elements, despite their scarcity (less than 100 parts per million) on Earth, serve diverse purposes: some act as micronutrients, while others, known as critical metals, possess unique industrial and medical applications. In oxygen-deprived natural aquatic systems electron transfers involve biogeochemical reactions catalyzed by iron, sulfur and trace elements. Understanding their reactivity in these environments remains a challenge. My Ph.D. research focus on filling this knowledge gap concerning three specific elements (rhenium (Re), selenium (Se), and gadolinium (Gd)). They exist in various chemical aqueous species in water: monovalent anion (perrhenate, ReO4—), divalent anion (selenate, SeO42—and selenite, SeO32—) or cation (Gadolinium, Gd3+). Rhenium is a critical metal, while selenium is a bioessential element at low levels, and becomes toxic in higher concentrations. Gadolinium is a rare earth element and a critical metal as well, due to its wide use as a contrast agent in magnetic resonance imaging (MRI).These elements are most concentrated in marine sediments formed in oxygen-deprived environments. Common mineral phases include pyrite (FeS2) and magnetite (Fe3O4) depending on sulfide content in those environments, and origin (autogenic vs. detritic, e.g., from volcanic rocks) of the particles. My research, presented across four chapters, investigates surface reduction (Re(VII), Se(VI) and Se(IV)) and the sorption (Gd(III)) processes on/into magnetite and pyrite particles. Employing various analytical methods such as XAFS spectroscopy, STEM-EELS spectro microscopie and MC-ICP-MS, our study reveals distinct reactive pathways. Re(VII) reacts with sulfidic water to form Re(III, IV, V)2S7 nanoparticles, while at lower concentrations Re is reduced and incorporated into particles, in different pathways characterized by less isotopic fractionation with pyrite than with magnetite. We also show that pyrite nanoparticles reduce Se(VI) and Se(IV), down to surface Se(0) or structure Se(-I) depending on whether adsorption or co-precipitation occurs. Lastly, Gd substitutes for Fe(III) in magnetite nanoparticles up to 5% Fe substitution by Gd. We attempt to unify the affinity behaviour of these and other trace elements with anoxic Fe-bearing sediments in the light of the hard and soft acids and bases principle.The study provides new insights into the mechanisms that govern the sequestration of metals and metalloids in sedimentary settings. The significance of this research lies in its relevance to contemporary scientific and technological endeavours, particularly in understanding how processes in Fe and sulfidic systems work like trace elements, Fe and S mobility, mass balance in the global sedimentary cycles to the exploration, mining and recycling of potential repositories of metals. Furthermore, it enhances our current understanding of the use of palaeoenvironmental proxies to reconstruct the Earth's formation. Finally, this study also has implications for the treatment of nuclear waste and pollution, particularly in the management of selenium (Se) and gadolinium (Gd) contamination
Soggiu, Nicolas. "Oxydation des sulfures par transfert monoélectronique photoinduit en milieux homogène et hétérogène". Pau, 2000. http://www.theses.fr/2000PAUU3006.
Texto completo da fonteLi, Ning. "Mécanismes de corrosion des couches minces d'argent en milieu sulfuré". Phd thesis, Université Pierre et Marie Curie - Paris VI, 2012. http://tel.archives-ouvertes.fr/tel-00833174.
Texto completo da fonteLi, Ning. "Mécanismes de corrosion des couches minces d’argent en milieu sulfuré". Paris 6, 2012. http://www.theses.fr/2012PA066103.
Texto completo da fonteSilver thin films (10 nm of thickness) are widely used in the glass industry for their high performance for thermal insulation of buildings. However, they are prone to deteriorate due to corrosion during the transport and storage. The aim of this thesis is to better understand the sulphidation mechanisms of silver thin films, in HS- containing aqueous solutions, with a model system Ag/Ti/SiO2, prepared by PVD. Electrochemical behavior, surface structure modifications, kinetics aspects and surface chemistry were investigated at macroscopic and atomic scales. An electrochemical behavior which is similar to that of thicker films has been observed. The mechanism of 2D sulphur adsorption on a single crystal Ag(111) in 1 mM Na2S + 0. 1 M NaOH has been explored by EC-STM. (23 × 23)R. 30°, (3 × 3)R. 30° and (7 × 7)R. 19° superstructures are formed with potential-driven increasing uptake of sulphur up to saturation. The terraces edges (steps) appear as preferential reaction sites, and by extrapolating to polycristalline films preferentially oriented (111), grain boundaries could play this role. The kinetics of the spontaneous formation of silver sulphide at open circuit potential (OCP) has been followed in situ by EQCM. The average growth rate of Ag2S is estimated to be 750 ng. Cm-2. Min-1. The formation of 3D sulphide islands has been demonstrated: the surface coverage of sulphur increase until around 85%, while the islands grow in height. The sulphidation increases the surface roughness and destroys the initial stratified structure of the stack
El, Hajjaji Souad. "Etude de la corrosion d'aciers inoxydables spéciaux en milieux phosphoriques pollués par des sulfures". Toulouse, INPT, 1994. http://www.theses.fr/1994INPT025G.
Texto completo da fonteCarassou, Sébastien. "Déclenchement du clivage dans un acier faiblement allié : rôle de l'endommagement ductile localisé autour des inclusions". ENSMP, 1999. http://www.theses.fr/1999ENMP0935.
Texto completo da fonteRoidot, Nathalie. "Trifluorométhylation à l'aide de trifluorométhanesulfinate de sodium en milieu oxydant". Lyon 1, 1992. http://www.theses.fr/1992LYO10190.
Texto completo da fonteChanson, Claude. "Etude du comportement de l'électrode de fer en milieu alcalin : influence des ions sulfures". Bordeaux 1, 1986. http://www.theses.fr/1986BOR10575.
Texto completo da fonteChanson, Claude. "Etude du comportement de l'électrode de fer en milieu alcalin influence des ions sulfures". Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375966067.
Texto completo da fonteZal, Franck. "Structures des hemoglobines extracellulaires d'annelides et de vestimentiferes colonisant des milieux extremes les hemoglobines face aux sulfures". Paris 6, 1996. http://www.theses.fr/1996PA066441.
Texto completo da fonteCapítulos de livros sobre o assunto "Milieux sulfurés"
Carlier, P. "L’ Ozone Serait-Il L’ Oxydant Principal Du Sulfure De Dimethyle En Milieu Oceanique?" In Atmospheric Ozone, 815–19. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5313-0_160.
Texto completo da fonte