Download or read book Description th orique des interf rences de raies dans les spectres d absorption et de diffusion de gaz mol culaire written by Leila Daneshvar Salehi and published by . This book was released on 2014 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: La modélisation des interférences de raies dans des spectres de gaz moléculaires repose sur le concept de la matrice de relaxation dont les éléments diagonaux décrivent les raies isolées et les éléments non-diagonaux représentent le transfert d'intensité entre les raies. Ces éléments non-diagonaux sont modélisés en appliquant des lois d'échelle comme le modèle ECS (Energy-Corrected-Sudden). Nous avons considéré la molécule de CO2 car ce gaz joue un rôle important dans les atmosphères terrestre et planétaires. En plus, à cause de la petite valeur de sa constante de rotation, les raies se serrent et se chevauchent, donnant naissance à des interférences de raies. Grâce aux nouvelles valeurs des paramètres ajustés,nous avons réexaminé l'application de l'approche ECS non-Markovienne (déjà développée pour des spectres de diffusion Raman anisotrope de CO2) _a des spectres de diffusion Raman isotrope, spectre rotationnel pur et spectres ro-vibrationnels de la bande _1 et 2_2. Nous avons également présenté une généralisation de cette approche, aux bandes parallèles et perpendiculaires d'absorption infrarouge, pour les molécules linéaires avec des modes de flexion, accompagnée d'applications au cas de CO2.
Download or read book La diffusion mol culaire de la lumi re written by Jean Cabannes and published by FeniXX. This book was released on 1929-01-01T00:00:00Z with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage est une réédition numérique d’un livre paru au XXe siècle, désormais indisponible dans son format d’origine.
Download or read book MODELISATION DES SPECTRES D ABSORPTION INFRAROUGE ET DE DIFFUSION RAMAN COHERENTE written by FRANCOIS.. EMOND and published by . This book was released on 1995 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'INTERET CROISSANT PORTE AUX TECHNIQUES DE DIAGNOSTIC OPTIQUE ET LA PRECISION ACCRUE DES SIGNATURES SPECTRALES AINSI OBTENUES, SUPPOSENT, LORSQUE L'ON VEUT EFFECTUER DES CALCULS PREDICTIFS, QUE LES MECANISMES COLLISIONNELS SOIENT PARFAITEMENT MAITRISES. C'EST POURQUOI IL EST IMPORTANT D'ELABORER UN MODELE DE RELAXATION DE LA ROTATION MOLECULAIRE DECRIVANT CORRECTEMENT DES SITUATIONS EXPERIMENTALES AUSSI VARIEES QUE POSSIBLE. C'EST AU DEVELOPPEMENT D'UN TEL MODELE QUE CETTE THESE EST CONSACREE. POUR CELA, ON A TOUT D'ABORD REPLACE, A L'AIDE DU FORMALISME DE LA FONCTION MEMOIRE, LES LOIS D'ECHELLE DYNAMIQUE OBTENUES A LA LIMITE DES HAUTES TEMPERATURES DANS UN CADRE THEORIQUE GENERAL. CECI A FAIT APPARAITRE QUE CE MODELE LIMITE NE CONTENAIT PLUS D'INFORMATIONS SUR L'ASPECT MACROSCOPIQUE DE LA RELAXATION DU MOMENT ANGULAIRE. ON A DONC MODIFIE CE MODELE DE MANIERE A INTRODUIRE LES TEMPS DE RELAXATION MANQUANTS, QUI PEUVENT ETRE ATTEINTS EXPERIMENTALEMENT ET NE SONT DONC PAS REDUITS A DE SIMPLES PARAMETRES AJUSTABLES. DE NOMBREUSES APPLICATIONS SPECTROSCOPIQUES ILLUSTRENT LA GENERALITE DU MODELE AINSI OBTENU AUSSI BIEN EN DIFFUSION RAMAN COHERENTE QU'EN ABSORPTION INFRAROUGE. CE FORMALISME EST CAPABLE DE DECRIRE DE FACON PREDICTIVE DES BANDES DE TRANSITION ENTRE ETATS MOLECULAIRES AUSSI COMPLEXES QUE CEUX FAISANT INTERVENIR DES MODES VIBRATIONNELS EXCITES, TELS QUE LA FLEXION DE LA MOLECULE DE DIOXYDE DE CARBONE. LA DERNIERE PARTIE DE CE TRAVAIL EST CONSACREE A L'EXTENSION DE L'APPROCHE THEORIQUE PROPOSEE, AU CAS OU LA DUREE FINIE DES COLLISIONS MOLECULAIRES NECESSITE UN TRAITEMENT HORS DE L'APPROXIMATION DE L'IMPACT
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 Unravelling the Mystery of the Atomic Nucleus written by Bernard Fernandez and published by Springer Science & Business Media. This book was released on 2012-09-28 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unravelling the Mystery of the Atomic Nucleus is a history of atomic and nuclear physics. It begins in 1896 with the discovery of radioactivity, which leads to the discovery of the nucleus at the center of the atom. It follows the experimental discoveries and the theoretical developments up to the end of the Fifties. Unlike previous books regarding on history of nuclear physics, this book methodically describes how advances in technology enabled physicists to probe the physical properties of nuclei as well as how the physical laws which govern these microscopic systems were progressively discovered. The reader will gain a clear understanding of how theory is inextricably intertwined with the progress of technology. Unravelling the Mystery of the Atomic Nucleus will be of interest to physicists and to historians of physics, as well as those interested development of science.
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 Precision Measurement and Fundamental Constants Proceedings written by United States. National Bureau of Standards and published by . This book was released on 1971 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Quantum Mechanics Volume 3 written by Claude Cohen-Tannoudji and published by John Wiley & Sons. This book was released on 2019-12-16 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new, third volume of Cohen-Tannoudji's groundbreaking textbook covers advanced topics of quantum mechanics such as uncorrelated and correlated identical particles, the quantum theory of the electromagnetic field, absorption, emission and scattering of photons by atoms, and quantum entanglement. Written in a didactically unrivalled manner, the textbook explains the fundamental concepts in seven chapters which are elaborated in accompanying complements that provide more detailed discussions, examples and applications. * Completing the success story: the third and final volume of the quantum mechanics textbook written by 1997 Nobel laureate Claude Cohen-Tannoudji and his colleagues Bernard Diu and Franck Laloë * As easily comprehensible as possible: all steps of the physical background and its mathematical representation are spelled out explicitly * Comprehensive: in addition to the fundamentals themselves, the books comes with a wealth of elaborately explained examples and applications Claude Cohen-Tannoudji was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris where he also studied and received his PhD in 1962. In 1973 he became Professor of atomic and molecular physics at the Collège des France. His main research interests were optical pumping, quantum optics and atom-photon interactions. In 1997, Claude Cohen-Tannoudji, together with Steven Chu and William D. Phillips, was awarded the Nobel Prize in Physics for his research on laser cooling and trapping of neutral atoms. Bernard Diu was Professor at the Denis Diderot University (Paris VII). He was engaged in research at the Laboratory of Theoretical Physics and High Energy where his focus was on strong interactions physics and statistical mechanics. Franck Laloë was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris. His first assignment was with the University of Paris VI before he was appointed to the CNRS, the French National Research Center. His research was focused on optical pumping, statistical mechanics of quantum gases, musical acoustics and the foundations of quantum mechanics.
Download or read book Methods of Detecting Exoplanets written by Valerio Bozza and published by Springer. This book was released on 2016-04-12 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, renowned scientists describe the various techniques used to detect and characterize extrasolar planets, or exoplanets, with a view to unveiling the “tricks of the trade” of planet detection to a wider community. The radial velocity method, transit method, microlensing method, and direct imaging method are all clearly explained, drawing attention to their advantages and limitations and highlighting the complementary roles that they can play in improving the characterization of exoplanets’ physical and orbital properties. By probing the planetary frequency at different distances and in different conditions, these techniques are helping astrophysicists to reconstruct the scenarios of planetary formation and to give robust scientific answers to questions regarding the frequency of potentially habitable worlds. Twenty years have passed since the discovery of a Jupiter-mass companion to a main sequence star other than the Sun, heralding the birth of extrasolar planetary research; this book fully conveys the exciting progress that has been achieved during the intervening period.
Download or read book Livestock Policy Analysis written by International Livestock Research Institute and published by ILRI (aka ILCA and ILRAD). This book was released on 1995-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Policy concepts; Identification of policy issues; Production systems, supply and demand; Market, price and trade policies; Marketing and distribution systems; Budget and manpower planning; Land tenure police for the livestock sector; Policy analysis report writing and communication; Livestock production and marketing in alphabeta - a case study.
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 The Astronomical Revolution written by Alexandre Koyre and published by Routledge. This book was released on 2013-04-15 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in English in 1973. This volume traces the development of the revolution which so drastically altered man’s view of the universe in the sixteenth and seventeenth centuries. The "astronomical revolution" was accomplished in three stages, each linked with the work of one man. With Copernicus, the sun became the centre of the universe. With Kepler, celestial dynamics replaced the kinematics of circles and spheres used by Copernicus. With Borelli the unification of celestial and terrestrial physics was completed by abandonment of the circle in favour the straight line to infinity.
Download or read book Organic Solid State Lasers written by Sébastien Forget and published by Springer. This book was released on 2013-07-03 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.
Download or read book Dictionnaire des termes de m decine written by Henry Eugène de Méric and published by . This book was released on 1899 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Response to Climatic Factors written by R. O. Slatyer and published by . This book was released on 1973 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
