Download or read book Contribution l tude des ph nom nes de diffusion in lastique sur les couches internes des atomes written by Dominique Girard (chimiste) and published by . This book was released on 1980 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contributions l tude des m canismes de formation des atomes creux sous les surfaces written by Nicolas Bechu and published by . This book was released on 2000 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'étude de l'interaction des ions multichargés avec un solide, à une énergie cinétique inferieure à celle des électrons dans la matière, a été permise avec l'apparition des sources EBIS et ECR. Un ion se neutralise d'abord en capturant à distance de la surface (à échelle atomique) un grand nombre d'électrons des bandes électroniques du solide dans ses états de Rydberg. Il forme un atome creux qui décline par effet Auger. Au contact de la surface, l'ion est reionisé et commence une seconde phase de neutralisation rapide en dessous de la surface, conduisant à la formation d'un deuxième type d'atome creux. Cette thèse démontre le rôle essentiel du contact, et la forte influence de la nature chimique de la surface et de ses propriétés physiques sur l'interaction. Elle montre que l'interaction des ions Ar 1 7 + est différente sur un conducteur et un isolant, et qu'il existe des nuances entre les différents conducteurs et isolants. Elle montre que l'interaction est différente entre deux variétés allotropiques du carbone (graphite et diamant). Elle démontre aussi que la surface évolue sous irradiation, changeant la nature de l'interaction (graphitisation du diamant). Ces études sont réalisées grâce aux photons émis par les ions et les surfaces. Pour la première fois, les raies L des ions Ar 9 IS 1 2 IS 1 6 IS 1 7 + sont observées avec un détecteur à jonction, ainsi que la raie k du carbone induite par l'interaction des ions Ar 1 6 IS 1 7 +. Cette thèse démontre que ces photons proviennent d'échanges de charge entre ces ions et la première couche atomique du solide. Elle met aussi en évidence un processus similaire, mais de faible probabilité, pour des ions Ar 1 6 IS 1 7 + sur SI. Cette thèse ouvre une voie nouvelle dans l'étude de l'interaction des ions lents multichargés avec des surfaces, en démontrant le rôle des effets pré-collisionnels dans la première couche atomique qui fixe les conditions initiales de la neutralisation à l'intérieur du solide
Download or read book Contribution l tude de la diffusion lastique et in lastique avec un faisceau de protons polaris s written by René de Swiniarski and published by . This book was released on 1967 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution l tude de la diffusion lastique et in lastique avec un faisceau de protons polaris s written by René de Swiniarski and published by . This book was released on 1969 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution a l tude de la diffusion lastique du syst me 16 O 12 C written by Pierre Charles and published by . This book was released on 1981 with total page 142 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 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 Theory of X Ray Diffraction in Crystals written by William H. Zachariasen and published by Dover Publications. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic by one of the great figures in x-ray structure analysis provides a vigorous mathematical treatment of its subject. Addresses such fundamentals as crystal faces and edges, the lattice postulate, lattice rows and panes, as well as point, translation, and space groups. 1945 edition.
Download or read book Basic Technics in Ecological Farming Techniques de Base en Agriculture Biologique Grunds tzliche Verfahren der kologischen Landwirtschaft Le Maintien de la Fertilit des Sols The Maintenance of Soil Fertility Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Differential Manifolds written by Jacques Lafontaine and published by Springer. This book was released on 2015-07-29 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to differential manifolds. It gives solid preliminaries for more advanced topics: Riemannian manifolds, differential topology, Lie theory. It presupposes little background: the reader is only expected to master basic differential calculus, and a little point-set topology. The book covers the main topics of differential geometry: manifolds, tangent space, vector fields, differential forms, Lie groups, and a few more sophisticated topics such as de Rham cohomology, degree theory and the Gauss-Bonnet theorem for surfaces. Its ambition is to give solid foundations. In particular, the introduction of “abstract” notions such as manifolds or differential forms is motivated via questions and examples from mathematics or theoretical physics. More than 150 exercises, some of them easy and classical, some others more sophisticated, will help the beginner as well as the more expert reader. Solutions are provided for most of them. The book should be of interest to various readers: undergraduate and graduate students for a first contact to differential manifolds, mathematicians from other fields and physicists who wish to acquire some feeling about this beautiful theory. The original French text Introduction aux variétés différentielles has been a best-seller in its category in France for many years. Jacques Lafontaine was successively assistant Professor at Paris Diderot University and Professor at the University of Montpellier, where he is presently emeritus. His main research interests are Riemannian and pseudo-Riemannian geometry, including some aspects of mathematical relativity. Besides his personal research articles, he was involved in several textbooks and research monographs.
Download or read book Alpha particle Calibrations written by J. M. R. Hutchinson and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronomy written by P. M. Banks and published by Elsevier. This book was released on 2013-09-24 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeronomy, Part A is an attempt to make a comprehensive exposition of the processes in aeronomy, the study of composition, movement, and thermal balance of the upper regions of the planetary atmosphere. The text covers topics such as atmospheric regions and atmospheric density, the temperature and molecular mass of the atmosphere; the permanent constituents and the molecular and isotonic composition of the homosphere; and the transition from the homosphere to the heterosphere. Also covered are topics such as the temperature gradient and energies in the thermosphere, conditions at 200km and above 250km, solar radiation and ionization, and aeronomic reactions. The book is recommended for scientists, especially natural physicists, who would like to know more about the field of aeronomy and its advances.
Download or read book A New Pocket Dictionary of the French and English Languages in Two Parts written by Thomas Nugent and published by . This book was released on 1770 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Optical Principles of the Diffraction of X rays written by R. W. James and published by . This book was released on 1967 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Ecology written by Unesco and published by . This book was released on 1955 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Romantic Agony written by Mario Praz and published by [London] : Collins. This book was released on 1956 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mario Paz has, in the Romantic Agony, acutely analyzed the effect of the traditions of Byron and De Sade upon poets and painters from 1800 to 1900. It is the analysis of a mood in literature. The mood may ve been transient, but it was widespread, and it was expressed in dreams of "luxurious cruelties," "fatal women," corpse-passions, and the sinful agonies of delight. Professo Praz has described the whole Romantic literature under one of its most characteristic aspects, that of erotic sensibility.
Download or read book Minimum competence in scientific English written by Sue Blattes and published by L'Editeur : EDP Sciences. This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage, devenu célèbre sous son sigle MCSE, a déjà été utilisé par plus de 50 000 étudiants, chercheurs, professionnels. L'objectif est de lire et écrire des textes en anglais scientifique avec facilité et pertinence. L'ouvrage est conçu pour que l'apprenant devienne un véritable utilisateur de l'anglais. La méthode originale repose sur l'analyse des fonctions et structures nécessaires : measurement, frequency, comparison, modification, link words, time, cause and consequence, hypothesis, modality, purpose and process, impersonal forms, compound nouns and adjectives. Dans chaque unit, des tests d'auto-évaluation permettent de se situer et de construire son parcours de formation, d'abord en définissant ses objectifs à l'aide des key points et du lexis, puis, de façon plus personnalisée, en puisant dans les examples in context, checkpoints (back to basics, word web), web search, FAQs... MCSE est l'outil de base d'une méthode qui comprend aussi d'autres outils dans la même collection (Listening Comprehension for Scientiflc English et Speaking Skills in Scientitic English). L'ouvrage est destiné à tout apprenant de niveau baccalauréat qui désire acquérir une réelle compétence dans l'écriture et la lecture de textes en anglais scientifique.
