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Artykuły w czasopismach na temat "Oxydes de fer – Environnement"
Vishiti, Akumbom, Dieudonne Charles Isidore Ilouga, Ndzegha Collins Bomyoymoah i Cheo Emmanuel Suh. "Petrology of banded iron formation-related country rocks at the northern limit of the Mbalam iron ore district, southeastern Cameroon". Journal of the Cameroon Academy of Sciences 18, nr 2 (24.10.2022): 447–72. http://dx.doi.org/10.4314/jcas.v18i2.5.
Pełny tekst źródłaOuerfelli, Najoua, Mohamed Faouzi Zid i Tahar Jouini. "Un nouveau diarséniate Cs3Fe2(AsO4)3à environnement exclusivement pentagonal du fer". Acta Crystallographica Section E Structure Reports Online 61, nr 8 (13.07.2005): i165—i167. http://dx.doi.org/10.1107/s1600536805021616.
Pełny tekst źródłaYoboue, Kouadio Emile, Bi Trazié Jérémie Gala, Marie-Paule Hien i Kouassi Yannick Stéphane Gboko. "Pédo-géochimie et minéralogie des sols à cuirassement sur substrat sédimentaire de Bingerville, au nord-est du district d’Abidjan, Côte d’Ivoire". International Journal of Biological and Chemical Sciences 17, nr 6 (18.01.2024): 2525–35. http://dx.doi.org/10.4314/ijbcs.v17i6.30.
Pełny tekst źródłaOnana, Vincent Laurent, Estelle Ndome Effoudou, Sylvia Desirée Noa Tang, Véronique Kamgang Kabeyene i Georges Emmanuel Ekodeck. "Chemical weathering intensity and rare earth elements release from a chlorite schist profile in a humid tropical area, Bengbis, Southern Cameroon". Journal of the Cameroon Academy of Sciences 16, nr 2 (27.01.2021): 123–45. http://dx.doi.org/10.4314/jcas.v16i2.5.
Pełny tekst źródłaLeblanc, J. Cl, i F. Dabosi. "Restitution de la chaîne opératoire ancienne de forgeage manuel du fer sur la base d'une étude morphométrique et minéralogique des oxydes de fer". Matériaux & Techniques 92, nr 5-6 (2004): 3–12. http://dx.doi.org/10.1051/mattech:2004023.
Pełny tekst źródłaPagnier, Thierry, Jean-Louis Souquet i Michel Ribes. "Proche environnement du fer et conductivite electrique de verres du systeme Na2O|SiO2|Fe3O4". Materials Research Bulletin 20, nr 2 (luty 1985): 225–32. http://dx.doi.org/10.1016/0025-5408(85)90049-2.
Pełny tekst źródłaTrolard, Fabienne, i Guilhem Bourrié. "L'influence des oxydes de fer de type ≪ rouilles vertes ≫ sur les séquences d'oxydo-réduction dans les sols". Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 329, nr 11 (grudzień 1999): 801–6. http://dx.doi.org/10.1016/s1251-8050(00)88635-8.
Pełny tekst źródłaSerpaud, B., R. Al-Shukry, M. Casteignau i G. Matejka. "Adsorption des métaux lourds (Cu, Zn, Cd et Pb) par les sédiments superficiels d'un cours d'eau: rôle du pH, de la température et de la composition du sédiment". Revue des sciences de l'eau 7, nr 4 (12.04.2005): 343–65. http://dx.doi.org/10.7202/705205ar.
Pełny tekst źródłafreour, Roselyne. "Etude de l'oxydo-reduction des oxydes de fer Fe2O3γ et Fe3O4 et de poudre de fer incorpores dans une pate de carbone. Influence de la nature du liant electrolytique". Electrochimica Acta 30, nr 6 (czerwiec 1985): 795–98. http://dx.doi.org/10.1016/0013-4686(85)80129-8.
Pełny tekst źródłaMagrina, Benoît, Michel Jébrak i Michel Cuney. "Le magmatisme de la région de Kwyjibo, Province du Grenville (Canada) : intérêt pour les minéralisations de type fer-oxydes associées". Canadian Journal of Earth Sciences 42, nr 10 (1.10.2005): 1849–64. http://dx.doi.org/10.1139/e05-103.
Pełny tekst źródłaRozprawy doktorskie na temat "Oxydes de fer – Environnement"
Wang, Yuheng. "Etude cristallochimique de l'immobilisation de l'arsenic par les (hydr)oxydes de fer dans les environnements anoxiques". Paris 6, 2007. http://www.theses.fr/2007PA066384.
Pełny tekst źródłaWu, Yingxin. "Surfactant-Assisted Zerovalent Iron Dechlorination Of Polychlorinated Biphenyl In Contaminated Sediment". Electronic Thesis or Diss., Université de Lorraine, 2016. http://www.theses.fr/2016LORR0066.
Pełny tekst źródłaSoil and sediment contamination by polychlorinated biphenyls (PCBs) is a global health and environmental concern, since PCBs are toxic and recalcitrant. The aim of this thesis is to find a remediation process to PCBs contaminated sediments by using zerovalent iron (ZVI). To begin the studies on remediation, a survey was conducted on sites contaminated by e-waste recycling activities in south China. PCBs contamination was not as severe as previously, whereas the co-existence of PCBs and heavy metals increases the difficulty of remediation. Afterwards, the feasibility PCBs degradation by ZVI in aqueous solutions was investigated. Results confirmed the stepwise dechlorination of PCBs by ZVI and the major pathway with congener specifity and regiospecifity. The relative importance of the influential factors to ZVI degradation of PCBs was in the order of surfactants > humic acid > pH > Ni2+. Sediment decontamination was studied by 1) washing with an aqueous solution of surfactant followed by ZVI dechlorination of PCBs and 2) direct mixing with ZVI and surfactant solution. The second approach gave promising results for remediation
Al-Sid-Cheikh, Maya. "Impact des oxydes de fer naturels et des nanoparticules manufacturées sur la dynamique des éléments traces dans les sols de zones humides". Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S144.
Pełny tekst źródłaNanoscience is based on changes in particle properties when their diameter is below 100 nm (ie nanoparticles, NPs). Considering the increasing use of such NPs and their discharge into the environment, the assessment of their risks to human health and the environment is a major issue. Underneath the protection of waters and soils, the surface water assessment quality is particularly important, especially in wetlands, where the toxic metals dynamic (e.g. As, Pb, Ni, Cr , Hg) is complex and depends on the redox conditions of the environment. As magnetite (nano-Fe3O4), a natural or manufactured NP, is known for its significant adsorption capacity with heavy metals, their interactions in riparian wetlands with trace metals (TMs) remain critical concerning their direct of indirect impact on trace metals (TMs) mobility. The objective of this thesis was to study the role of manufactured nano-Fe3O4 (~ 10nm) and natural iron oxides on the TMs dynamics in wetland surface waters and soils. Therefore, in a first part considering natural colloidal precipitates from reoxidation products from riparian areas (subject to redox oscillations), a spatial distribution of elements was performed using nanoSIMS isotope mapping (i.e. 75As-, 56Fe16O-, sulfur (32S-) and organic matter (12C14N-), while the sulfur speciation was evaluated X-ray adsorption at K edge of the sulfur (S) (XANES). These analyzes allowed to highlight the interactions between natural iron oxides, natural organic matter (NOM) and a toxic metalloid, As. Our results suggest, with a statistical colocalization of nanoSIMS images, the existence of two interaction types: (1) 12C14N-, 32S-, 56Fe16O- and 75As-, and (2) 12C14N-, 32S- and 75As-. The coexistence of the oxidized and reduced forms of S, confirmed by the XANES analyses might be attributed to the slow oxidation kinetic of MON. Thus, this first part shows that in addition to the known interactions between MON, iron oxides and As, a possible direct interaction between As and NOM through sulfur functional groups (e.g. thiols) are also possible in oxidized environment. In a second part, the effect of nano-Fe3O4 (~ 10 nm) on trace elements (TEs) and colloids mobility in the organomineral horizon of a natural wetland soil was assessed using soil columns. Our results show that the nanoparticles coating influences the mobility of NOM and TMs. Indeed, the TMs mobility increases in presence of naked nano-Fe3O4, suggesting associations where NOM stabilizes the nanoparticles and increase the nanoparticles and associated TMs mobility. This mechanism seems less possible with coated nano-Fe3O4 where MON blocks the coating adsorption sites and therefore the adsorption of metals
Wille, Guillaume. "Propriétés thermophysiques et structurales du fer et des oxydes de fer liquides". Orléans, 2002. http://www.theses.fr/2002ORLE2022.
Pełny tekst źródłaZaidi, Mourad. "Mouillabilité de surfaces hétérogènes fer-oxydes par le plomb et l'étain". Châtenay-Malabry, Ecole centrale de Paris, 2008. http://www.theses.fr/2008ECAP1094.
Pełny tekst źródłaWetting phenomenon takes place in several processes among which continuous galvanizing of steel sheet for car bodies. In this process, the steel sheet is immersed in a zinc bath in order to cover it with a protective zinc layer. But before that, the cold rolled steel sheet is annealed in a reducing atmosphere in order to eliminate the cold working and the superficial iron oxides improving thereby the galvanizing reactions. New steels, called advanced high strength steels, have been developed in order to improve vehicle safety without increasing their weight and therefore fuel consumption. These steels contain high amounts of oxidable alloying elements that segregate during the annealing to the surface where they form oxides particles that are not wetted by liquid zinc. Therefore it seems important to understand the wetting by liquid metals of heterogeneous surfaces composed by metallic iron and oxides. For this purpose we have build a dispensed drop apparatus allowing the annealing of the substrate separately of the liquid and the in situ study of the spreading of metallic droplet at very short time using a high speed camera. In our experiments we have used different iron – silcon alloys and an industrial steel leading to surface coverage lying from 0 to 100%. We have chosen two liquid metals. Lead to investigate the non reactive wetting and tin to investigate the reactive wetting. Wetting
Dumeignil, Franck Payen Edmond Grimblot Jean. "Catalyse et environnement". Villeneuve d'Ascq : Université des sciences et technologies de Lille, 2007. https://iris.univ-lille1.fr/dspace/handle/1908/177.
Pełny tekst źródłaSynthèse des travaux en français et curriculum vitae. Recueil de publications en anglais non reproduit dans la version électronique. N° d'ordre (Lille 1) : 501. Titre provenant de la page de titre du document numérisé. Bibliogr. 5 p. Liste des publications et des communications.
Belin, Thomas. "Interface externe et propriétés structurales d'un solide nanométrique : cas de nanocristaux de γ-Fe2O3 , adsorption d'eau et transition de phase γ-α". Dijon, 2002. http://www.theses.fr/2002DIJOS052.
Pełny tekst źródłaDelepine, Jean. "Caractérisation de la liaison fer-oxygène dans des oxydes de fer à valence mixte par des méthodes spectrométriques". Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37597018t.
Pełny tekst źródłaTarablsi, Bassam. "Elaboration de nanocomposites photopolymères à base d’oxyde de fer et d’argile". Mulhouse, 2008. https://www.learning-center.uha.fr/opac/resource/elaboration-de-nanocomposites-photopolymeres-a-base-doxyde-de-fer-et-dargile/BUS4168193.
Pełny tekst źródłaIn this work, nanocomposites of photopolymer-oxide and photopolymer-oxide-MMT (oxide: nanoparticles of yFe2O3, MMT: montmorillonite) were prepared by photochemical procedure. Conceming the first on (photopolymer-oxide), the maghemite nanoparticles were synthesized according to the process described by Massart. The compatibility of these particles with the polymeric matrix was obtained by immobilization of MPDMS at their surface using a thermic procedure. Conceming the second one, the mixture of different nanofillers (nanofillers mixture yFe2O3-MMT) were prepared by a new method based on the ion exchange reaction and different chemical and thermal treatments. The incorporation of both nanofillers in the diacrylate photopolymeric matrix was studied and optimized. A kinetic study of the photopolymerization reaction in presence of both nanofillers was also performed by FTIR spectroscopy. The addition of both nanofillers did not effect significantly the polymerization kinetics in thin films (10µm) at nanofillers concentration up to 2 wt%. It was found that nanocomposites had a came photopolymerization rates in comparison with pure diacrylate. The experimental results showed that photopolymer-oxide-MMT nanocomposite can improve by 66% the mechanical properties (E')
Bentahar, Yassine. "Caractérisation physico-chimique des argiles marocaines : application à l’adsorption de l'arsenic et des colorants cationiques en solution aqueuse". Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4081/document.
Pełny tekst źródłaToday drinking water resources are greatly reduced due to population increase accompanied by high industrialization and intensive agricultural development. Releases of varying micropollutants (pesticides, dyes, phenols ...) in the environment are increasing. These pollutants, toxic and poorly degradable, are usually the source of many harmful health effects. They also directly affect the balance of ecosystems following the deterioration of the quality of various environmental medium (soil, water, air). Hence the concern to develop methods that work to preserve water resources against pollution by treating polluted sources. The application of natural and abundant adsorbents like clay in the water treatment is a legitimate way to preserve the water capital. That is why my research is articulated around the physicochemical characterization of a series of natural clays sampled in the northern region of Morocco. Several techniques have been sought: XRD, XRF, FTIR, TGA, The BET-N2 specific surface area, electrophoresis. Furthermore the determination of some physicochemical properties such as CEC and TOC. This allowed us to establish a database with the different properties of these materials. This database may be sought to guide the use of these materials according to their nature. In a second step, we studied the adsorption of arsenic and organic contaminants (methylene blue and methylene violet) by clays. The kinetics of equilibrium adsorbent / adsorbate is an essential step to optimize the conditions for determination of adsorption isotherms
Książki na temat "Oxydes de fer – Environnement"
Physico-chimie des cuirasses latéritiques: Domaines de stabilité des oxydes et hydroxydes de fer et d'aluminium. Strasbourg, France: Institut de géologie, Université Louis Pasteur de Strasbourg et Centre de géochimie de la surface, CNRS, 1988.
Znajdź pełny tekst źródłaTrolard, Fabienne. Physico-chimie des cuirasses latéritiques: Domaines de stabilité des oxydes et hydroxydes de fer et d'aluminium. Strasbourg, France: Editions de l'Institut de géologie, 1990.
Znajdź pełny tekst źródłal'environnement, Canada Ministère de, i Centre de technologie environnemetnale (Canada). Division de la recherche et des mesures des émissions., red. Protocoles et spécifications de rendement pour la surveillance continue des émissions gazeuses des centrales thermiques. [Ottawa]: Environnement Canada, 2005.
Znajdź pełny tekst źródłaVix et son territoire à l'âge du fer: Fouilles du mont Lassois et environnement du site princier. Montagnac: M. Mergoil, 2001.
Znajdź pełny tekst źródłaJ, Raub, United Nations Environment Programme, International Labour Organisation, World Health Organization, Inter-Organization Programme for the Sound Management of Chemicals. i International Program on Chemical Safety., red. Carbon monoxide. Wyd. 2. Geneva: World Health Organization, 1999.
Znajdź pełny tekst źródłaCarbon Monoxide, 1999 (Environmental Health Criteria). Wyd. 2. World Health Organization, 2000.
Znajdź pełny tekst źródłaCzęści książek na temat "Oxydes de fer – Environnement"
Sigaut, François. "Le fer dans l’agriculture". W Le village médiéval et son environnement, 413–26. Éditions de la Sorbonne, 1998. http://dx.doi.org/10.4000/books.psorbonne.23643.
Pełny tekst źródła"7. Oxydes de fer : un exemple de versatilité structurale". W De la solution à l'oxyde, 265–318. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1959-1-009.
Pełny tekst źródła"7. Oxydes de fer : un exemple de versatilité structurale". W De la solution à l'oxyde, 265–318. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1959-1.c009.
Pełny tekst źródłaLOMBARD, Pierre. "Âges du Fer Sans Fer: Le cas de la Péninsule d’Oman au 1er Millénaire avant J.-C." W L'Arabie préislamique et son environnement historique et culturel, 25–37. BRILL, 1989. http://dx.doi.org/10.1163/9789004671973_004.
Pełny tekst źródłaThirault, Éric. "La Teha à Bessans (Savoie) : une halte d’altitude (2 250 m) du Néolithique à l’Âge du Fer". W L’Homme et son environnement : des lacs, des montagnes et des rivières, 241–58. ARTEHIS Éditions, 2015. http://dx.doi.org/10.4000/books.artehis.5142.
Pełny tekst źródłaBellon, Catherine, Odile Franc i Thierry Argant. "Lyon avant Lugdunum : l’occupation du premier âge du fer dans son environnement naturel, synthèse de 20 ans de fouille archéologique". W De l’âge du Bronze à l’âge du Fer en France et en Europe occidentale (Xe-VIIe siècle av. J.-C.), 111–32. ARTEHIS Éditions, 2009. http://dx.doi.org/10.4000/books.artehis.18131.
Pełny tekst źródłaRaporty organizacyjne na temat "Oxydes de fer – Environnement"
Corriveau, L. Les systèmes minéralisateurs à oxydes de fer et altération à éléments alcalins (±calciques) et leurs gîtes IOA, IOCG, skarns, U±Au±Co (au sein d'albitites) et affiliés: une série de cours intensifs. Partie 1 : introduction. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2017. http://dx.doi.org/10.4095/300242.
Pełny tekst źródłaCorriveau, L., E. G. Potter, J. F. Montreuil, O. Blein, K. Ehrig i A. F. De Toni. Les systèmes minéralisateurs à oxydes de fer et altération à éléments alcalins (±calciques), et leurs gîtes IOA, IOCG, skarns, U±Au±Co (au sein d'albitites) et affiliés : une série de cours intensifs. Partie 2 : Aperçu général des types de gîtes, distribution, âges, contextes, exemples, faciès d'altération et modèles métallogéniques. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/308269.
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