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Fabrication Du Combustible Nucleaire Par Voie Peroxyde
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Book Synopsis Fabrication du combustible nucléaire par voie peroxyde by : Paul-Henri Imbert
Download or read book Fabrication du combustible nucléaire par voie peroxyde written by Paul-Henri Imbert and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette étude s'inscrit dans le cadre d'une gestion commune de l'uranium et du plutonium par un procédé original reposant sur l'échange cationique au sein de nanoclusters d'uranyle et qui permet une utilisation directe de ces précurseurs double pour la fabrication de pastilles d'oxyde mixte. Les travaux de la thèse ont visé à démontrer que des composés peroxo-hydroxydes double d'uranyle et d'ions terres-rares (utilisés comme simulants des actinides mineurs) pouvaient répondre à cet objectif industriel. La démarche de compréhension a été décomposée en deux grandes étapes, (i) l'obtention d'une poudre d'oxyde mixte de type fluorine par décomposition thermique des sels initiaux puis, (ii) la fabrication de pastilles densifiées aux caractéristiques microstructurales optimisées. Pour ces deux étapes, les analyses expérimentales ont été réalisées par des approches ex-situ et in-situ, et cela pour des conditions opératoires variées en température et en nature de l'atmosphère réactionnelle. Les mécanismes et phénomènes physico-chimiques associés aux transformations ont été principalement étudiés par dosages chimiques des espèces (redox et ICP-AES), diffraction des rayons X, spectroscopies UV-visible, infrarouge et d'absorption X, analyses thermiques, (ATG-MS, ATG-ATD, dilatométrie) et observations en microscopie optique, électronique à balayage et en transmission. La décomposition thermique conduisant à l'obtention d'une poudre d'oxyde mixte homogène apparait régie par deux paramètres clés, la diffusion de l'élément d'ajout (Nd ou Ce) au sein des phases uranifères et la pression partielle en oxygène. Les travaux montrent également que les transformations successives sont qualitativement isomorphiques, et que les distributions en taille et en forme des particules du précurseurs demeurent jusqu'à la phase d'oxyde de type fluorine. Le procédé d'obtention du précurseur par une voie d'hydrométallurgie offre des poudres de grande surface spécifique. Bien qu'il n'ait pas été possible d'extraire les paramètres thermodynamiques du frittage par les expériences in-situ, les analyses ex-situ des pastilles densifiées laissent supposer que les mécanismes densifiant reposeraient sur une diffusion aux joints de grains. Les observations microstructurales ont permis de montrer une distribution homogène des grains et de la distribution des cations métalliques en solution solide. Les résultats de la thèse confortent grandement les potentialités de cette voie originale reposant sur l'emploi de précurseurs peroxo-hydroxyde double d'uranyle et de terre-rare pour une gestion commune de l'uranium et du plutonium dans des usines de retraitement du futur.
Book Synopsis Offshore Power Systems by : Faye H. Horn
Download or read book Offshore Power Systems written by Faye H. Horn and published by . This book was released on 1974 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transportation of Dangerous Goods by :
Download or read book Transportation of Dangerous Goods written by and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insurgent Love written by Ardath Whynacht and published by Fernwood Publishing. This book was released on 2021-10-31T00:00:00Z with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Domestic homicide is violence that strikes within our most intimate relations. The most common strategy for addressing this kind of transgression relies on policing and prisons. But through examining commonly accepted typologies of high-risk intimate partner violence, Ardath Whynacht shows that policing can be understood as part of the same root problem as the violence it seeks to mend and provides an abolitionist frame for the most dangerous forms of intimate partner violence. This book illustrates that the origins of both the carceral state and toxic masculinity are situated in settler colonialism and racial capitalism and sees police homicide and domestic homicide as akin. Describing an experience of domestic homicide in her community and providing a deeply personal analysis of some of the most recent cases of homicide in Canada, the author inhabits the complexity of seeking abolitionist justice. Insurgent Love traces the major risk factors for domestic homicide within the structures of racial capitalism and suggests transformative, anti-capitalist, anti-racist, feminist approaches for safety, prevention and justice.
Download or read book Zirconium and Hafnium written by and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lung Cell Biology by : Donald Massaro
Download or read book Lung Cell Biology written by Donald Massaro and published by Marcel Dekker. This book was released on 1989 with total page 1476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-six contributions comprise this massive reference which reviews all aspects of lung cell biology and biochemistry--focusing on such essential topics as cellular components of lung tissue, basic metabolic and biochemical properties of the lung, the lung's surfactant system, and clinical considerations. Among the topics addressed: the nature of cilia and ciliated epithelial cells; regulators' impact on human lung development; lung surfactant synthesis, secretion, and turnover; the biochemistry of lung proteoglycans; changes that occur in the fetal lung; oxygen toxicity; the influence of nutrition on normal and diseased lungs of humans and animals. Some 3,800 bibliographic citations. Annotation(c) 2003 Book News, Inc., Portland, OR (booknews.com)
Book Synopsis Extrapulmonary Manifestations of Respiratory Disease by : Eugene Debs Robin
Download or read book Extrapulmonary Manifestations of Respiratory Disease written by Eugene Debs Robin and published by . This book was released on 1978 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific Canadian Mechanics' Magazine and Patent Office Record by : Canada. Patent Office
Download or read book Scientific Canadian Mechanics' Magazine and Patent Office Record written by Canada. Patent Office and published by . This book was released on 1966-03 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Explosives and Related Items by :
Download or read book Encyclopedia of Explosives and Related Items written by and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NFPA 484 Standard for Combustible Metals by : National Fire Protection Association
Download or read book NFPA 484 Standard for Combustible Metals written by National Fire Protection Association and published by . This book was released on 2018-08-03 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NFPA 61 , Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food Processing Facilities by : National Fire Protection Association (NFPA)
Download or read book NFPA 61 , Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food Processing Facilities written by National Fire Protection Association (NFPA) and published by . This book was released on 2012-10-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Liquid-oxygen Explosives by : George St. John Perrott
Download or read book Liquid-oxygen Explosives written by George St. John Perrott and published by . This book was released on 1932 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: