Download or read book Etude de la fonction cin tique de dissolution d un verre nucl aire written by Fabienne Delage and published by . This book was released on 1992 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL A POUR BUT D'ETABLIR UNE FONCTION CINETIQUE DE DISSOLUTION DANS L'EAU, DU VERRE NUCLEAIRE BOROSILICATE INACTIF DE REFERENCE R717. LES CONTRIBUTIONS AU PROCESSUS GLOBAL DE DISSOLUTION, DES MECANISMES DE REACTION DE SURFACE ET DE DIFFUSION DU SILICIUM DANS LA SOLUTION INTERSTITIELLE DE LA PELLICULE D'ALTERATION, SONT ETUDIEES SUR UN INTERVALLE DE TEMPS A L'ECHELLE DU LABORATOIRE. DEUX APPROCHES SONT DEVELOPPEES: L'UNE EXPERIMENTALE, L'AUTRE MODELISATRICE. DEMARCHE EXPERIMENTALE. LES PRINCIPAUX RESULTATS SONT LES SUIVANTS: LES VITESSES INITIALES DE CORROSION EVOLUENT ENTRE 90 ET 250C SELON UNE LOI DE TYPE ARRHENIUS; DES CORRELATIONS LINEAIRES ENTRE LE TAUX DE SILICIUM PIEGE DANS LA PELLICULE D'ALTERATION ET LA CONCENTRATION DU SILICIUM EN SOLUTION PEUVENT ETRE ETABLIES POUR TOUTES LES TEMPERATURES CONSIDEREES; LA DIFFUSION DU SILICIUM DANS LA SOLUTION INTERSTITIELLE DE LA PELLICULE D'ALTERATION EST MISE EN EVIDENCE DANS DES CONDITIONS EXPERIMENTALES A FAIBLE TAUX DE RENOUVELLEMENT DE SOLUTION; DES CONCENTRATIONS EN SOLUTION, QUASI-STATIONNAIRES, PEUVENT ETRE OBSERVEES A 110 ET 150C POUR DES EXPERIENCES MENEES A FORT RAPPORT SURFACE DE VERRE SUR VOLUME DE SOLUTION. MODELISATION. LA CINETIQUE DE DISSOLUTION EST DECRITE PAR UNE CONJUGAISON DES RELATIONS: EQUATION CINETIQUE DU PREMIER ORDRE PAR RAPPORT AU SILICIUM ET PREMIERE LOI DE FICK APPLIQUEE A LA DIFFUSION DU SILICIUM DANS LA SOLUTION INTERSTITIELLE DE LA PELLICULE D'ALTERATION. LA SIMULATION DE LA FORMATION DE LA PELLICULE D'ALTERATION EST EFFECTUEE SUR LA BASE DE LA PRECIPITATION D'HYDROXYDES ET CARBONATES, ET DU PIEGEAGE PARTIEL DU SILICIUM SELON LES LOIS PROPOSEES PRECEDEMMENT. LA REPRODUCTION DES RESULTATS EXPERIMENTAUX PAR LE CODE DE CALCUL EST ASSEZ SATISFAISANTE. DANS TOUS LES CAS ETUDIES, LA DIFFUSION DU SILICIUM DANS LA SOLUTION INTERSTITIELLE DE LA PELLICULE D'ALTERATION NE PEUT ETRE NEGLIGEE

Download or read book Etude exp rimentale de l influence d esp ces aqueuses sur la cin tique de dissolution du verre nucl aire R7T7 written by Stéphane Gin and published by . This book was released on 1994 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL EST UNE CONTRIBUTION A L'ETUDE DE LA CORROSION EN PHASE AQUEUSE DU VERRE NUCLEAIRE DE REFERENCE R7T7. IL COMPREND UNE PARTIE BIBLIOGRAPHIQUE QUI FAIT ETAT DES ETUDES ANTERIEURES ET SOULEVE LES DIFFICULTES QUI APPARAISSENT DANS L'INTERPRETATION DES INTERACTIONS DANS LES SYSTEMES CONTENANT DES MATERIAUX ARGILEUX A PROXIMITE DU VERRE. UNE METHODOLOGIE EXPERIMENTALE EST PROPOSEE: ELLE VISE A ETUDIER DE FACON SEPAREE L'EFFET DES ESPECES AQUEUSES INORGANIQUES ET DE QUELQUES ACIDES ORGANIQUES SUR LES MECANISMES ET LA CINETIQUE DE DISSOLUTION DU VERRE R7T7 A 90C. LES RESULTATS EXPERIMENTAUX PRESENTES DANS CE MEMOIRE ACCREDITENT L'IDEE SELON LAQUELLE PLUSIEURS ELEMENTS FORMATEURS DE RESEAU PRESENTENT UN CARACTERE CINETIQUEMENT LIMITANT. L'HYPOTHESE LA PLUS PROBABLE POUR EXPLIQUER L'ABSENCE DE CONDITIONS DE SATURATION VIS-A-VIS DU VERRE DANS CERTAINS MILIEUX ARGILEUX EST LA COMPLEXATION D'ELEMENTS METALLIQUES ISSUS DE LA CORROSION DU VERRE ET PRESENTANT UN ROLE CINETIQUEMENT LIMITANT, TEL QUE L'ALUMINIUM. PAR RAPPORT AUX CONTEXTE DU STOCKAGE GEOLOGIQUE DES VERRES NUCLEAIRES CE TRAVAIL CONTRIBUE A UNE MEILLEURE DEFINITION DES MECANISMES DE BASE DE LA DISSOLUTION DU VERRE. IL PERMETTRA D'INTERPRETER LES ETUDES D'ALTERATION DU VERRE DANS DES SOLUTIONS DE COMPOSITIONS REELLES OU REALISTES ET POURRA CONTRIBUER A LA DEFINITION DE BARRIERES CHIMIQUES PAR AJOUT A PROXIMITE DU COLIS DE VERRE D'ESPECES FAVORISANT LA STABILITE DE LA MATRICE VITREUSE (SILICE AMORPHE, D'HYDROXYDES D'ALUMINIUM, PHOSPHATES)

Download or read book Analytical Methods in the Nuclear Fuel Cycle written by and published by . This book was released on 1972 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.

Download or read book Fast Ion Transport in Solids written by B. Scrosati and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main motivation for the organization of the Advanced Research Workshop in Belgirate was the promotion of discussions on the most recent issues and the future perspectives in the field of Solid State lonics. The location was chosen on purpose since Belgirate was the place were twenty years ago, also then under the sponsorship of NATO, the very first international meeting on this important and interdisciplinary field took place. That meeting was named "Fast Ion Transport in Solids" and gathered virtually everybody at that time having been active in any aspect of motion of ions in solids. The original Belgirate Meeting made for the first time visible the technological potential related to the phenomenon of the fast ionic transport in solids and, accordingly, the field was given the name "Solid State lonics". This field is now expanded to cover a wide range of technologies which includes chemical sensors for environmental and process control, electrochromic windows, mirrors and displays, fuel cells, high performance rechargeable batteries for stationary applications and electrotraction, chemotronics, semiconductor ionics, water electrolysis cells for hydrogen economy and other applications. The main idea for holding an anniversary meeting was that of discussing the most recent issues and the future perspectives of Solid State lonics just twenty years after it has started at the same location on the lake Maggiore in North Italy.

Download or read book Handbook of Soil Analysis written by Marc Pansu and published by Springer Science & Business Media. This book was released on 2007-04-18 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is a reference guide for selecting and carrying out numerous methods of soil analysis. It is written in accordance with analytical standards and quality control approaches. It covers a large body of technical information including protocols, tables, formulae, spectrum models, chromatograms and additional analytical diagrams. The approaches are diverse, from the simplest tests to the most sophisticated determination methods.

Download or read book Management of Radioactive Wastes from the Nuclear Fuel Cycle written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Download or read book Gender Matters written by Dennis van der Veur and published by Council of Europe. This book was released on 2007-01-01 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: "'Gender Matters' is a manual aimed to assist educators and youth leaders work on issues of gender and gender-based violence with young people. This publication presents theoretical information, methods and resources for education and training activities, along with concrete exercises that users can put into practice in their daily work. Violence is a serious issue which directly affects the lives of many young people. It often results in lasting damage to their well-being and integrity, putting even their lives at risk. Gender-based violence, including violence against women, remains a key human rights challenge in contemporary Europe and in the world. Working with young people on human rights education is one way of preventing gender-based violence from occurring. By raising awareness on why and how it manifests and exploring its impact on people and in society, gender-based violence will no longer go undetected. Gender really does matter, to women, to men, to young people - to all of us. This manual serves to explore these human rights issues and act upon them."--Book jacket.

Download or read book Sergei M Eisenstein written by Naum Kleiman and published by Amsterdam University Press. This book was released on 2016-06-03 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sovjetregisseur en filmtheoreticus Sergei M. Eisenstein werkte in 1946 en 1947 een jaar voor zijn dood aan een algemene geschiedenis van de cinema. De manier waarop hij de geschiedschrijving van van de cinema benadert, is tegelijk fascinerend in haar ambitie en uiterst modern in haar methode. Eisenstein presenteert hier een virtuele wereldkaart van alle aan de bioscoop gerelateerde media, en ontwikkelt op hetzelfde moment een methode voor het schrijven van een geschiedenis die net als de cinema is gebaseerd op montage. De teksten van Eisenstein worden begeleid door een reeks kritische essays, geschreven door enkele van 's werelds meest gekwalificeerde Eisensteinkenners.

Download or read book Ceramic Materials written by Philippe Boch and published by John Wiley & Sons. This book was released on 2010-01-05 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is primarily an introduction to the vast family of ceramic materials. The first part is devoted to the basics of ceramics and processes: raw materials, powders synthesis, shaping and sintering. It discusses traditional ceramics as well as “technical” ceramics – both oxide and non-oxide – which have multiple developments. The second part focuses on properties and applications, and discusses both structural and functional ceramics, including bioceramics. The fields of abrasion, cutting and tribology illustrate the importance of mechanical properties. It also deals with the questions/answers of a ceramicist regarding electronuclear technology. As chemistry is an essential discipline for ceramicists, the book shows, in particular, what soft chemistry can contribute as a result of sol-gel methods.

Download or read book Scientific Basis for Nuclear Waste Management XXII Volume 556 written by David J. Wronkiewicz and published by . This book was released on 1999-11-24 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Safe and effective management of nuclear waste provides a broad range of challenges for materials science. Waste processing, waste form and engineered barrier properties, interactions between engineered and geological systems, radiation effects, chemistry and transport of waste species, and long-term predictions of repository performance are just some of the scientific problems facing modern society. This book, the 22nd in a very successful series from MRS, offers an international and inter-disciplinary perspective on the issues, and features developments in both fundamental and applied areas. Topics include: development and characterization of ceramic waste forms; ceramic waste form corrosion; glass waste form processing; glass formulation, properties and structure; glass waste form corrosion; spent nuclear fuel; performance assessment; repository backfill; flow and transport; natural analogues; container corrosion; metal waste form corrosion; radionuclide speciation and solubility; radionuclide sorption; microbial effects; radiation effects; cement waste forms and waste treatment.

Download or read book Soil Analysis written by J. Gautheyrou and published by CRC Press. This book was released on 2001-01-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to provide a better understanding of tools for soil analysis in order to use them more efficiently. It covers sampling problems as well as difficulties relating to actual analysis and quality control.

Download or read book Underground Disposal of Radioactive Wastes written by International Atomic Energy Agency and published by . This book was released on 1981 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiopharmaceuticals and Labelled Compounds written by and published by . This book was released on 1973 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Newer Trace Elements in Nutrition written by Walter Mertz and published by . This book was released on 1971 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: