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Artykuły w czasopismach na temat "Solvants – Environnement"
Facy, F., M. Verron, F. Pequignot i M. Ramirez. "Approche épidémiologique des jeunes usagers chroniques de solvants". Psychiatry and Psychobiology 1, nr 4 (1986): 274–87. http://dx.doi.org/10.1017/s0767399x0000047x.
Pełny tekst źródłaAtteia, O., i M. Franceschi. "Conditions chimiques contrôlant l'atténuation naturelle des BTEX et solvants chlorés : un état des connaissances". Revue des sciences de l'eau 14, nr 4 (12.04.2005): 419–44. http://dx.doi.org/10.7202/705426ar.
Pełny tekst źródłaRozprawy doktorskie na temat "Solvants – Environnement"
Marchetti, Mario. "Aspects globaux et locaux de la mise en oeuvre de la lubrification fluide en ambiance spatiale". Lyon, INSA, 2000. http://theses.insa-lyon.fr/publication/2000ISAL0082/these.pdf.
Pełny tekst źródłaFluid lubrication is applied for space applications since the sixties. Physico-chemical and rheological properties of lubricants are adapted to such a severe environment. Nevertheless, several aspects have to get clear before a safer use of this lubrication technique. General first ones deal with cleaning procedures of metallic parts and with tribological and rheological behaviour of oils used for these extreme applications. Due to the environment (ultrahigh vacuum,. . . ), oil spreading, and the absence of maintenance, oil losses must be necessarily compensated. Techniques to continuously feed and to maintain enough lubricant to ensure long lifetime mission are employed in ball-bearings. Cleaning procedure has four objectives. They include the removal of contaminants harmful for fluid lubrication, a reproducible efficiency, continuity of the use of solvents and the respect of legislation. The combination of an alkaline solution and an azeotrope of hydrofluorocarbon-dichloroethylene allows to reach an acceptable contamination level and a good wettability of stainless steel. Numerous satellite mechanisms run at low speed. The most common lubrication regimes are so elastohydrodynamic and mixed. Two lubricants for aerospace applications have shown different behaviours. A linear perfluoropolyalkylether can create an elastohydrodynamic film, even at very low speed
Marchetti, Mario Flamand Louis Vergne Philippe. "Aspects globaux et locaux de la mise en oeuvre de la lubrification fluide en ambiance spatiale". Villeurbanne : Doc'INSA, 2001. http://docinsa.insa-lyon.fr/these/pont.php?id=marchetti.
Pełny tekst źródłaPelé, Fabienne. "Environnement et développement de l'enfant à 2 ans". Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1B013/document.
Pełny tekst źródłaBackground: The organism is very sensitive to environment during its developmental period. Number of epidemiological studies has suggested the developmental toxicity of about ten chemical pollutants after prenatal exposure. The general objective of the thesis is to explore the effect of prenatal exposure to certain chemical pollutants (organic solvents, organophosphates pesticides and maternal consumption of fish and shellfish (vectors of pollutants)) on child development at age 2. Methods: This thesis is based on the PELAGIE mother-child cohort that was set up in 2002, in Brittany (FRANCE). In total, 3421 women were included in this cohort at the beginning of pregnancy and 1500 mother- child pairs were followed when the child was 2 years old. Exposures were evaluated at the beginning of pregnancy from questionnaires, job-exposure matrices or measurement of biomarkers of exposure. Health indicators were measured at the 2 years follow-up. At follow-up, questionnaires allowed to obtain information on child behaviour, respiratory manifestations like wheezing, allergies (eczema and food allergy) and growth between birth and the age of two. Results: Prenatal occupational exposure to solvents was associated with higher level of hyperactivity and attention deficit at age 2. This exposure was not associated neither with respiratory nor with allergic manifestations. We also observed that maternal shellfish consumption during pregnancy was associated with a higher risk of food allergy in preschoolers. Finally, higher prenatal exposure to organophosphate pesticides was associated with a decrease height growth velocity at age 2. Conclusion: The present thesis based on the PELAGIE study supported for the hypothesis that prenatal exposure to environmental chemicals may be implicated in the developmental origin of health and diseases
Chen, Yushu. "Application de l'équation PC-SAFT à la capture du dioxyde de carbone et à la désulfuration des essences". Electronic Thesis or Diss., Université de Lorraine, 2013. http://www.theses.fr/2013LORR0092.
Pełny tekst źródłaThe replacement of conventional organic solvents by a new generation of solvents less toxic, less flammable and less polluting is a major challenge for the chemical industry. Ionic liquids have been widely promoted as interesting substitutes for traditional solvents. The purpose of this work is to evaluate the behavior of ionic liquids in the presence of greenhouse gases (CO2, CH4 and N2O) or organic compounds. Firstly, a theoretical study presents the performance of the thermodynamic model PC-SAFT in the representation of vapor-liquid equilibrium of systems containing ionic liquids and carbon dioxide. Then, the solubility study of methane, carbon dioxide and nitrous oxide in various ionic liquids was performed at high or low pressure. The group contribution concept is proposed in this study in order to predict the Henry's law constant of carbon dioxide in ionic liquids. Finally, a study on the vapor-liquid equilibrium of binary systems encountered in gasoline desulfurization was carried out. Experimental data were used to evaluate the performance of PC-SAFT equation of state to represent phase equilibrium of systems {sulfur / aromatic compounds + ionic liquid}
Guillot, de Suduiraut M.-Charlotte. "Conditions chimiques et modélisation de la biodégradation des solvants chlorés dans les nappes souterraines". Bordeaux 3, 2005. http://www.theses.fr/2005BOR30064.
Pełny tekst źródłaAngeli, Jean-Marc. "Formulations et procédés de nettoyage et d'entretien à faible incidence sur l'environnement". Aix-Marseille 3, 1993. http://www.theses.fr/1993AIX30022.
Pełny tekst źródłaIlly, Valeureux Destin Toukanogo. "Application de la forensique environnementale à la discrimination de sources de pollution en nappe". Electronic Thesis or Diss., Bordeaux 3, 2021. http://www.theses.fr/2021BOR30027.
Pełny tekst źródłaLike countries with a long industrial past, soils and groundwater in France have been heavily contaminated by polluting compounds. On industrial sites, contaminants detected in water can come from several sources making the identification necessary for the assessment of contamination and the establishment of responsibilities for the management of pollution.However, when the contaminated aquifer has a very heterogeneous geological structure, it is impossible to accurately model underground flows and contaminant transport. As a result, it will also be impossible to precisely establish the average composition of a plume of contaminants emitted from a source area from the concentration data and groundwater flows alone. To this end, multidisciplinary approaches are necessary for a better characterization of the extent, age, and origin of contamination in a heterogeneous environment. These approaches combine historical information, measurements of concentrations, stable isotope ratios of contaminants and hydrogeological data, all analyzed using mathematical modeling tools. Such approaches provide the essential elements both for the determination of the risk and for possible legal disputes relating to the contamination.On two industrial sites of the company which co-finances the present research work, very low contamination of chlorinated solvents is regularly detected on drinking and industrial water catchments downstream of the sites. On each of these sites, several past or current activities coexist in the catchment supply basin and can give rise to the same contamination. The concerned aquifers are chalky with a very heterogeneous structure including in places cracks. In addition, the precise origins of the sources of pollution are unknown. Thus, the objective of the thesis is to use the multidisciplinary methods mentioned above to determine the proportion of water coming from each of the potential sources
Thiébaud, Hervé. "Mise au point d'une méthodologie analytique en écotoxicologie : impact du dichlorométhane sur des microcosmes aquatiques". Université Joseph Fourier (Grenoble), 1992. http://www.theses.fr/1992GRE18008.
Pełny tekst źródłaSilvestre, Françoise. "Mise au point d'un nouveau procédé de tannage par les sels de chrome en milieu solvant organique. Réactivité des complexes de chrome en présence de peaux à taux d'humidité contrôlé". Toulouse, INPT, 1992. http://www.theses.fr/1992INPT065G.
Pełny tekst źródłaMadi, Belkacem. "Contribution à l'étude des méthodes de traitement des sols pollués par des hydrocarbures aromatiques polycycliques (HAP) : application de la désorption thermique et de l'extraction par solvant". Compiègne, 2006. http://www.theses.fr/2006COMP1658.
Pełny tekst źródłaThe thesis is a contribution for the methodology to be applied for the treatment of polycyclic aromatic hydrocarbons (PAHs) contaminated soils. The aspects covered are the soil bulk handling, analysis for monitoring the cleanup, the treatability study, the conduct of laboratory testing ant the mathematical modeling of the treatment
Książki na temat "Solvants – Environnement"
Howard. Handbook of Environmental Fate and Exposure for Organic Chemistry, Five Volume Set. Wyd. 5. CRC, 1997.
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