Download or read book tude par spectroscopie infrarouge de la r orientation de petites mol cules en phase gazeuse comprim e et en solution written by Georges Lévi and published by . This book was released on 1974 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE EXPERIMENTALE PAR SPECTROSCOPIE IR ET RAMAN DE LA DYNAMIQUE DE PETITES MOLECULES (CO, C::(2)H::(2), N::(2)O, CH::(3)D) EN PHASE LIQUIDE SOLIDE ET GAZEUSE. ETUDE DES FLUCTUATIONS ORIENTATIONNELLES A L'AIDE DES MODELES DE DEBYE, CORDON, SHIMIZU, ETC DECRIVANT LA REORIENTATION MOLECULAIRE. DISCUSSION DE LA VALIDITE ET DE LA PRECISION DE CES MODELES. CALCUL A L'AIDE DE LA THEORIE DE BERNE ET HARP UTILISANT LES FONCTIONS DE CORRELATION, DU PROFIL D'UNE RAIE DE DIFFUSION RAMAN A PARTIR DU PROFIL DE LA BANDE IR CORRESPONDANTE

Download or read book Etude par spectroscopie infrarouge de la dynamique orientationnelle de petites mol cules en solution written by Patrick Carlier and published by . This book was released on 1987 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Etude théorique et expérimentale pour caractériser les effets propres de densité sur le mouvement moléculaire à partir des profils d'absorption IR pour de petites molécules en solution dans des solvants inertes. Proposition d'un modèle simple pour l'interaction soluté-solvant (réduit à un paramètre de cage dont la variation peut représenter une modification de densité) et expression de mouvement du soluté en fonction des coordonnées de rotation et de translation. Bon accord avec des données expérimentales antérieures pour des molécules diatomiques ou linéaires dans différents solvants. Etude expérimentale de la dynamique orientationnelle de HCl en solution diluée, sous des pressions variables

Download or read book Spectroscopie infrarouge coupl e la spectrom trie de masse pour la caract risation en phase gazeuse de petits syst mes mol culaires neutres ou proton s written by Bruno Lucas and published by . This book was released on 2004 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Résumé en français] Ce mémoire présente deux techniques permettant l'étude en phase gazeuse d'agrégats de petites molécules d'intérêt biologique ou de molécules isolées. Ces techniques sont basées sur le couplage d'une méthode de spectrométrie de masse et d'une méthode de spectroscopie infrarouge vibrationnelle. L'interprétation des spectres expérimentaux est réalisée par comparaison avec des fréquences théoriques harmoniques ou anharmoniques, calculées par des méthodes de chimie quantique. Nous étudions des systèmes moléculaires neutres et polaires à l'aide d'une nouvelle méthode basée sur le couplage entre la spectroscopie de pré-dissociation vibrationnelle pour les agrégats et d'auto-détachement pour les molecules isolées, couplée à la formation d'anions dipolaires. Puis nous étudions des petits peptides protonés dans le but déterminer leurs sites de protonation et leurs structures en couplant la spectroscopie de dissociation multi-photonique et un spectrometer de masse à transformée de Fourier.

Download or read book Electron Spin Resonance ESR Applications in Organic and Bioorganic Materials written by B. Catoire and published by Springer. This book was released on 1992-02-27 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Publication partially sponsored by MRT (French Ministry of Research and Technology."

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 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 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 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.

Download or read book Advances in Hydroinformatics written by Philippe Gourbesville and published by Springer. This book was released on 2015-08-21 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of extended papers based on presentations given during the SIMHYDRO 2014 conference, held in Sophia Antipolis in June 2014. It focuses on the modeling and simulation of fast hydraulic transients, on 3D modeling, and on uncertainties and multiphase flows. The book explores both the limitations and performance of current models and presents the latest developments based on new numerical schemes, high-performance computing, multiphysics and multiscale methods, and better interaction with field or scale model data. It addresses the interests of practitioners, stakeholders, researchers and engineers active in this field.

Download or read book Popular Astronomy written by Camille Flammarion and published by . This book was released on 1894 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Problems of the Arid Zone written by Unesco and published by paris. This book was released on 1962 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Climatology written by Unesco and published by . This book was released on 1958 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Climatologie Et Microclimatologie written by Unesco and published by . This book was released on 1958 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Physiology and Psychology in Arid Conditions written by Unesco and published by paris. This book was released on 1964 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Physiology and Psychology in Arid Conditions written by Unesco and published by . This book was released on 1963 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non Aboriginal material.

Download or read book Plant Physiology written by Frederick Campion Steward and published by . This book was released on 1972 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: