Download or read book ETUDE DES PROPRIETES PHYSICO CHIMIQUES D IONS DANS UN MILIEU POREUX CHARGE written by ANNE-LAURE.. ROLLET and published by . This book was released on 1999 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS AVONS ETUDIE DANS CETTE THESE LE PROCESSUS D'AUTODIFFUSION D'IONS AU SEIN D'UNE MEMBRANE ECHANGEUSE DE CATIONS, LE NAFION 117. NOUS AVONS OBSERVE L'AUTODIFFUSION DE L'ION N(CH 3) 4 + A PLUSIEURS ECHELLES DE TEMPS : LA PICOSECONDE (NQES), 0.1 A 1S (RMN) ET LA CENTAINE DE SECONDES (TRACEURS ISOTOPIQUES) ; CELA NOUS A PERMIS DE VOIR 1) QUE LES INTERACTIONS ELECTROSTATIQUES NE RALENTISSENT PAS L'AUTODIFFUSION PAR RAPPORT A CELLE SE DEROULANT DANS UNE SOLUTION NON CONFINE, 2) QUE L'AUTODIFFUSION ENTRE LES CAVITES DU NAFION DEPEND DE LA CONCENTRATION EN ELECTROLYTE, 3) QU'IL EXISTE DES AGREGATS DE CAVITES ET QUE LE PASSAGE D'UN AGREGAT A UN AUTRE EST LE FACTEUR LIMITANT DU TRANSPORT DE L'ION N(CH 3) 4 + A TRAVERS LA MEMBRANE. NOUS AVONS EGALEMENT ETUDIE L'AUTODIFFUSION DES IONS NA + ET CS + PAR UNE METHODE DE TRACEURS ISOTOPIQUES ET MIS EN EVIDENCE L'IMPORTANCE DE LA STRUCTURE DE LA MEMBRANE DANS LE TRANSPORT DU SODIUM ET DES INTERACTIONS ELECTROSTATIQUES DANS CELUI DU CESIUM. NOUS AVONS D'AUTRE PART REALISE PAR DIFFUSION DE NEUTRONS UNE ETUDE SYSTEMATIQUE DES PARAMETRES IMPORTANTS (NATURE DU CONTRE-ION, CONCENTRATION, VECU DE LA MEMBRANE ET TEMPERATURE) AGISSANT SUR LA TAILLE ET LA STRUCTURE DES CAVITES. NOUS AVONS EGALEMENT MONTRE PAR UNE ETUDE EXAFS QUE L'INTERACTION DES IONS CESIUM AVEC LES SITES FIXES EST FORTE PUISQUE L'ION SE CONDENSE SUR CES SITES. ENFIN, NOUS AVONS MONTRE QU'IL EST POSSIBLE DE DETERMINER UNE DISTRIBUTION IONIQUE DANS UN MILIEU CONFINE CHARGE PAR DIFFUSION DE NEUTRONS AUX PETITS ANGLES. EN APPLIQUANT CETTE METHODE AU NAFION SOUS FORME, NOUS AVONS PU MONTRER QUE LES IONS S'ORGANISENT AU VOISINAGE DES PAROIS DES CAVITES EN CONSERVANT TOUTEFOIS UNE COUCHE D'HYDRATATION (ILS NE SE CONDENSENT PAS SUR LES SITES).
Download or read book Proceedings of the Fifth Conference on Carbon written by Sam Stuart and published by Elsevier. This book was released on 2013-10-22 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Fifth Conference on Carbon
Download or read book Proceedings written by Conference on Carbon and published by . This book was released on 1961 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1991 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Conference on Carbon written by and published by . This book was released on 1962 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling in Aquatic Chemistry written by OECD Nuclear Energy Agency and published by Nuclear Energy Agency. This book was released on 1997 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index bibliographique du vide written by and published by . This book was released on 1969 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanoporous Alumina written by Dusan Losic and published by Springer. This book was released on 2015-07-17 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives detailed information about the fabrication, properties and applications of nanoporous alumina. Nanoporous anodic alumina prepared by low-cost, simple and scalable electrochemical anodization process due to its unique structure and properties have attracted several thousand publications across many disciplines including nanotechnology, materials science, engineering, optics, electronics and medicine. The book incorporates several themes starting from the understanding fundamental principles of the formation nanopores and theoretical models of the pore growth. The book then focuses on describing soft and hard modification techniques for surface and structural modification of pore structures to tailor specific sensing, transport and optical properties of nano porous alumina required for diverse applications. These broad applications including optical biosensing, electrochemical DNA biosensing, molecular separation, optofluidics and drug delivery are reviewed in separated book chapters. The book appeals to researchers, industry professionals and high-level students.
Download or read book Journal de physique th orique et appliqu e written by and published by . This book was released on 1976 with total page 1650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomie written by and published by . This book was released on 1997-05 with total page 266 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 Water in Road Structures written by Andrew Dawson and published by Springer Science & Business Media. This book was released on 2008-10-21 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Only book world-wide addressing this topic. The principal output of the European co-operative Action on "Water Movements in Road Pavements & Embankments". Provides unique guidance on assessing water condition and its affects on road performance. Provides unique guidance on assessing and ameliorating contaminant movement in pavement groundwater. Written by leading experts in Europe.
Download or read book Soils and Sediments written by Helene Paquet and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clays and soils are of great importance in various scientific fields, such as agriculture and environmental science, and in mineral deposits. Students and close collaborators of Georges Millot, the eminent French clay sedimentologist, have put together a book with topics ranging from weathering processes and diagenetic evalution of sediments to sedimentary mineral deposits. The book is of interest to practitioners, advanced students as well as teachers in the above fields.
Download or read book Heat and Mass Transfer in Porous Structures written by International Institute of Refrigeration. Commission B1 and published by . This book was released on 1976 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Waste Conditioning written by France. Commissariat à l'énergie atomique (CEA) and published by Le Moniteur Editions. This book was released on 2009 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by International Institute of Refrigeration and published by . This book was released on 1976 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
