Download or read book REALISATION D UN ANALYSEUR DE PARTICULES A DOUBLE FOCALISATION APPLICATION A L ETUDE D UNE SOURCE D IONS LENTS written by J.-L.. DIDELON and published by . This book was released on 1978 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: CONCEPTION, REALISATION ET MISE AU POINT D'UN SPECTROMETRE A DOUBLE FOCALISATION ET D'UNE SOURCE D'IONS LENTS DESTINES A UNE INSTALLATION D'ETUDE DE L'EMISSION DE PARTICULES NEUTRES PAR UNE SURFACE SOUMISE A UN BOMBARDEMENT IONIQUE (QUELQUES DIZAINES DE KEV)

Download or read book Etude exp rimentale d une source ionique par capture d lectrons d atomes excit s dans des tats de Rydberg written by Michel Carette and published by . This book was released on 1999 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS CE MEMOIRE DE THESE, NOUS PRESENTONS UN PROTOCOLE ORIGINAL DE METROLOGIE DE POLLUANTS ATMOSPHERIQUES PAR SPECTROMETRIE DE MASSE. D'UNE PART, CERTAINS ASPECTS DE L'ANALYSE EN MASSE SONT ABORDES PAR DES ETUDES DE SIMULATION NUMERIQUE ET D'AUTRE PART, LA CREATION DES IONS PAR CAPTURE D'ELECTRON DE RYDBERG EST ETUDIEE EXPERIMENTALEMENT. APRES UNE REVUE DES PRINCIPALES SOURCES IONIQUES EXISTANTES, ET PLUS PARTICULIEREMENT DES TECHNIQUES D'IONISATION DE MOLECULES COMPLEXES A FAIBLE TAUX DE FRAGMENTATION, NOUS DECRIVONS LES DEUX INSTRUMENTS DE SPECTROMETRIE DE MASSE UTILISES DANS CE TRAVAIL : L'UN INTEGRANT UN PIEGE DE PAUL, L'AUTRE UN QUADRIPOLE LINEAIRE. LES ETUDES DE SIMULATION CONCERNENT L'EXTENSION DU MODE OPERATOIRE DE SPECTROMETRIE DE MASSE PAR TRANSFORMEE DE FOURIER, DECOUVERT AU LABORATOIRE ET UTILISE AVEC LE PREMIER DE CES INSTRUMENTS. ELLES ONT MONTRE DE NOUVELLES POSSIBILITES INSTRUMENTALES LIEES A LA DETECTION DES FREQUENCES SECULAIRES RADIALES D'IONS CONFINES. LA PART LA PLUS IMPORTANTE DE CE TRAVAIL A PORTE SUR LE COUPLAGE D'UNE SOURCE IONIQUE PAR CAPTURE D'ELECTRON DE RYDBERG AVEC UN ANALYSEUR EN MASSE. D'ABORD, NOUS DONNONS DES RESULTATS D'ATTACHEMENT OBTENUS AVEC LE DISPOSITIF DU LABORATOIRE DEJA EXISTANT. PUIS NOUS DETAILLONS LA REALISATION ET LA VALIDATION D'UN TEL COUPLAGE AVEC UN ANALYSEUR QUADRIPOLAIRE COMMERCIAL. DANS LES DEUX CAS, CETTE TECHNIQUE A MONTRE LA NON-FRAGMENTATION DES ANIONS MOLECULAIRES CREES. ET ELLE A ETE TESTEE AVEC SUCCES SUR DIVERSES FAMILLES DE POLLUANTS : PCB, PAH, DIOXINES. CE TRAVAIL CONTRIBUE A L'AVANCEE DE LA REALISATION DU SPECTROMETRE DE MASSE DEVELOPPE AU LABORATOIRE POUR LA MESURE DE POLLUANTS ATMOSPHERIQUES.

Download or read book ETUDE ET REALISATION DE DETECTEURS D IONS LOURDS APPLICATION A L ETUDE DE LA REACTION 12 C 24 MG written by AISSA.. ADOUN and published by . This book was released on 1981 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: RAPPEL SUR LES LOIS D'INTERACTION DES PARTICULES CHARGEES AVEC LA MATIERE. DESCRIPTION D'UN COMPTEUR A GAZ UTILISANT CONJOINTEMENT LES PROPRIETES DES CHAMBRES D'IONISATION ET CELLES DES COMPTEURS PROPORTIONNELS. RESULTATS OBTENUS AVEC CE COMPTEUR DANS L'ETUDE DES DIFFUSIONS **(12)C(**(24)MG,**(24)MG*)

Download or read book M thodes d ionisation dans un spectom tre de masse FTICR transportable written by Christophe Dehon and published by . This book was released on 2009 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les techniques de spectrométrie de masse en piège permettent de garder, sélectionner, faire réagir et détecter les particules chargées. Les spectromètres de masse FTICR transportables développés au laboratoire, basés sur des aimants permanents, offrent la possibilité d’utiliser diverses méthodes d’ionisation comme l’impact électronique, l’ionisation chimique ou des méthodes de photoionisation. Durant cette thèse, différentes réactions ion-molécule ont été étudiées dans le but de les appliquer à l’ionisation chimique des composés organiques volatils. Ces méthodes d'ionisation ont ensuite été testées en conditions d'analyse. Le transfert de proton par H3O+ est un moyen d’ionisation douce, c'est-à-dire en général sans fragmentation, et a été utilisé pour l’analyse de mélanges complexes et de composés à l’état de traces dans l’air. Des transferts de proton plus sélectifs ont également été étudiés. D’autres réactions ion-molécule comme l'abstraction d’hydrure par CF3+ la capture de proton en mode négatif par OH- ou encore des réactions de complexation utilisant l’ion cyclopentadienylcobalt ont été mises en oeuvre pour élargir les possibilités de la méthode à des analyses non réalisables avec H3O+. Le spectromètre FTICR transportable MICRA possédant une cellule permettant la focalisation d’un faisceau de photons en son centre, nous avons aussi utilisé MICRA en couplage avec des sources synchrotrons pour réaliser deux types d'expériences impliquant la photoionisation VUV : d'une part l’étude de la chimie atmosphérique de Titan, d'autre part la détermination du seuil photoionisation du monocation du xénon combinant deux méthodes d’ionisation (impact électronique et photoionisation).

Download or read book Projet et r alisation d un spectrom tre de masse double focalisation compl te de deuxi me ordre en un point written by José Rivera Aranda and published by . This book was released on 1969 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Color Television Receivers written by and published by . This book was released on 1978 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report to the President on investigation no. 332-95 under section 332 of the Tariff Act of 1930, as amended.

Download or read book Diffusion in Materials DIMAT 2011 written by Igor Bezverkhyy and published by Trans Tech Publications Ltd. This book was released on 2012-04-12 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Diffusion in Materials (DIMAT) is the benchmark conference series for diffusion in solids. DIMAT 2011 was organized by the University of Bourgogne in association with CNRS, Dijon (France). The conference showcased new results concerning theoretical tools as well as applied research approaches. Diffusion processes affect all types of materials: nanomaterials, materials for energy, metallurgy, glasses and ceramics, but each requires its own numerical tools. Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises most of the contributions presented at DIMAT 2011: 4 plenary lectures delivered by famous high-level scientists plus 88 contributions in the form of keynote lectures, talks and posters.

Download or read book Aspects of Linguistic Variation written by Daniël Olmen and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-03 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Linguistic variation is a topic of ongoing interest to the field. Its description and its explanations continue to intrigue scholars from many different backgrounds. By taking a deliberately broad perspective on the matter, covering not only crosslinguistic and diachronic but also intralinguistic and interspeaker variation and examining phenomena ranging from negation over connectives to definite articles in well- and lesser-known languages, the volume furthers our understanding of variation in general. The papers offer new insights into, among other things, the theoretical notion of comparative concepts, the social or mental nature of language structure, the areal factor in lexical typology and the diachronic implications of semantic maps. The collection will thus be of relevance to typologists and historical linguists, as well as to people studying variation within the areas of cognitive and functional linguistics.

Download or read book Selected Measurement Methods for Plutonium and Uranium in the Nuclear Fuel Cycle written by Clement James Rodden and published by . This book was released on 1972 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Properties of Amorphous Materials written by David Adler and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute for Amorphous Studies was founded in 1982 as the international center for the investigation of amorphous mate rials. It has since played an important role in promoting the und er standing of disordered matter in general. An Institute lecture series on "Fundamentals of Amorphous Materials and Devices" was held during 1982-83 with distinguished speakers from universities and industry. These events were free and open to the public ,and were attended by many representatives of the scientific community. The lectures themselves were highly successful inasmuch as they provided not only formal instruction but also an opportunity for vigorous and stimulating debate. That last element could not be captured within the pages of a book I but the lectures concentrated on the latest advances in the field I which is why their essential contents are he re reproduced in collective form. Together they constitute an interdisciplinary status report of the field. The speakers brought many different viewpoints and a variety of back ground experiences io bear on the problems involved I but though language and conventions vary I the essential unity of the concerns is very clear I as indeed are the ultimate benefits of the many-sided approach.

Download or read book Contact With Space Oranur Second Report 1951 1956 written by Wilhelm Reich and published by . This book was released on 2018-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wilhelm Reich's final publication, Contact With Space contains the result of six years of intensive research and field work: a natural scientific account of and the basis of practical measures for combating the DOR emergency. This volume is an exposition of the newest developments in the technology of Cosmic Orgone Engineering, which involve the use of "Spacegun," an extension of the cloudbuster made possible by the discovery of ORUR.During Reich's scientific expedition to southern Arizona (1954-1955)--which he documents in this book--it was Cosmic Orgone Engineering that caused desert land to turn green with prairie grass. Here Reich submits a natural scientific explanation of the metabolism of the Life Energy, a study which goes into the nature of primal vegetation, and the nature of dying or death of vegetation, i.e., desert development.Nature being one, Contact With Space examines the new basic energetic facts brought into the open by the Oranur Experiment in terms of the various branches of science into which they ramify: biophysics, Oranur medicine, astrophysics, meteorology, chemistry and pre-atomic chemistry, space technology, man's reactions to these events, etc. It also deals with the methods of the functional scientist.Written under unrelenting attack from conspiratorial commercial interests, this book gives some of the background into the difficult social and physical milieu in which this research was done, and conveys the excitement of the adventures that began the cosmic or "atomic" age.

Download or read book Power Reactor Development written by and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Treatment Handbook written by and published by . This book was released on 2007 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: