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Author : Jacki Jocaille
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (494 download)
Download or read book Etude d'une chambre à plasma d'arc électrique contaminé par des vapeurs métalliques written by Jacki Jocaille and published by . This book was released on 1979 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M'hammed Abbaoui
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (49 download)
Download or read book ETUDE DES CARACTERISTIQUES DU PLASMA D'UN ARC ELECTRIQUE CONTAMINE PAR DES VAPEURS ISSUES DE METAUX ET D'ISOLANTS written by M'hammed Abbaoui and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LES CARACTERISTIQUES DES PLASMAS D'ARC ELECTRIQUE PEUVENT ETRE PROFONDEMENT MODIFIEES PAR LA PROXIMITE DES ELECTRODES ET DES ISOLANTS, PLUS PARTICULIEREMENT LORSQUE CES MATERIAUX SONT VAPORISES. LA CARACTERISATION THEORIQUE ET/OU EXPERIMENTALE DE TELS PLASMAS EST LE BUT DE CE TRAVAIL. UNE ETUDE THEORIQUE DE PLASMAS ARGON-METAL (OU ALLIAGE SANS OXYDES) ET AIR-METAL (OU ALLIAGE) DANS LA GAMME DE TEMPERATURE CORRESPONDANT AUX CONDITIONS EXPERIMENTALES, MET EN EVIDENCE L'EVOLUTION DE LA DENSITE NUMERIQUE DES DIFFERENTES ESPECES CHIMIQUES EN PRESENCE. CE CALCUL A ETE FAIT POUR DE NOMBREUX METAUX ET ALLIAGES (24 DANS L'ARGON ET 12 DANS L'AIR). UN MODELE D'UTILISATION SIMPLE A PERMIS DE CALCULER, AVEC UNE BONNE APPROXIMATION, LES CONDUCTIVITES ELECTRIQUE ET THERMIQUE DE CES DIFFERENTS PLASMA. L'ENSEMBLE DES RESULTATS OBTENUS, REVELE L'IMPORTANCE DE LA VALEUR DE L'ENERGIE DE PREMIERE IONISATION DU METAL DANS LA ZONE DE BASSE TEMPERATURE. UNE ETUDE EXPERIMENTALE A ETE FAITE SUR DES PLASMAS D'AIR ET D'ARGON, A PRESSION ATMOSPHERIQUE, EN PRESENCE D'ISOLANTS INDUSTRIELS. LA TEMPERATURE, LA DENSITE ELECTRONIQUE ET LE TEMPS D'EXTINCTION DE L'ARC SONT DETERMINES PAR SPECTROMETRIE; LE CHMAP ELECTRIQUE PAR UNE METHODE DE SONDES. L'ANALYSE DES RESULTATS EXPERIMENTAUX MONTRE L'INFLUENCE DES VAPEURS D'ISOLANTS SUR LES CARACTERISTIQUES DU PLASMA D'ARC
Author : M'hammed Abbaoui (auteur d'une thèse de sciences.)
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (465 download)
Download or read book Étude des caractéristiques du plasma d'un arc électrique contaminé par des vapeurs issues de métaux et d'isolants written by M'hammed Abbaoui (auteur d'une thèse de sciences.) and published by . This book was released on 1984 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ROBERT.. GADAUD
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (49 download)
Download or read book CONTRIBUTION A L'ETUDE DE L'INFLUENCE DES VAPEURS METALLIQUES SUR LE PLASMA D'UN ARC ELECTRIQUE BRULANT DANS L'ARGON written by ROBERT.. GADAUD and published by . This book was released on 1983 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: PROPRIETE DE TRANSPORT DES GAZ IONISES. CALCUL DES CONDUCTIVITES ELECTRIQUE ET THERMIQUE D'UN PLASMA ARGON-CUIVRE. ETUDE DU PLASMA D'ARC CONTAMINE PAR DES VAPEURS D'ARGENT
Author : Robert Gadaud (auteur d'une thèse de sciences.)
Publisher :
ISBN 13 :
Total Pages : 133 pages
Book Rating : 4.:/5 (465 download)
Download or read book Contribution à l'étude de l'influence des vapeurs métalliques sur le plasma d'un arc électrique brûlant dans l'argon written by Robert Gadaud (auteur d'une thèse de sciences.) and published by . This book was released on 1983 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. P.. Portrait
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (495 download)
Download or read book Influence des vapeurs métalliques sur la conductivité électrique d'un plasma d'arc written by J. P.. Portrait and published by . This book was released on 1981 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ARILAZA.. RANDRIAMAHEFASOA
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (49 download)
Download or read book ETUDE DU PLASMA AU VOISINAGE DES ELECTRODES D'UN ARC ELECTRIQUE DANS L'AZOTE written by ARILAZA.. RANDRIAMAHEFASOA and published by . This book was released on 1983 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE DE L'INFLUENCE DES VAPEURS DE CUIVRE EMISES PAR UNE ANODE SUR LES PARAMETRES D'UN PLASMA D'ARC DANS L'AZOTE. LES PROFILS DE LA TEMPERATURE AINSI QUE LES PROFILS DE DENSITE DU ONT ETE DETERMINES SPECTROSCOPIQUEMENT, PAR LA METHODE DES INTENSITES ABSOLUES DES RAIES. ON EN DEDUIT, EN SUPPOSANT L'ETL REALISE, LA DENSITE DES ESPECES EN PRESENCE DANS LE PLASMA. LES CONDUCTIVITES ELECTRIQUE ET THERMIQUE DU PLASMA ONT ETE CALCULEES POUR CETTE COMPOSITION DU PLASMA, PAR LA METHODE DE CHAPMAN-EUSKOG, AINSI QUE LE CHAMP ELECTRIQUE, LA TEMPERATURE ET LA CONDUCTANCE DE L'ARC AU VOISINAGE DES ELECTRODES, PAR L'EVALUATION DU BILAN D'ENERGIE. IL APPARAIT QUE LA PRESENCE DES VAPEURS DE CUIVRE MODIFIE DE MANIERE TRES SENSIBLE LES PARAMETRES DU PLASMA AU VOISINAGE DE L'ANODE
Author : OLGA.. KOUALTCHOUK
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (49 download)
Download or read book ETUDE DE PLASMAS ISSUS DE L'INTERACTION D'UN ARC ELECTRIQUE AVEC DES MATERIAUX ISOLANTS written by OLGA.. KOUALTCHOUK and published by . This book was released on 1997 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: UNE NOUVELLE TECHNIQUE DE COUPURE A ETE MISE AU POINT DANS LES ANNEES 80, ELLE EST BASEE SUR LE LAMINAGE DE L'ARC ENTRE DES PAROIS ISOLANTES. LES INTERACTIONS QUI SE PRODUISENT PENDANT LA DECHARGE CONDUISENT A DES PLASMAS CONSTITUES PRINCIPALEMENT DE VAPEURS D'ISOLANT. DES ETUDES THEORIQUES MENEES AU LABORATOIRE ONT MONTRE L'INTERET DE MATERIAUX DE TYPE POLYMERE DE FORMULE GENERALE C#XH#YO#ZN#T. CE MEMOIRE EST CONSACRE A L'ETUDE EXPERIMENTALE DE L'INTERACTION ENTRE UN ARC ELECTRIQUE ET DES ISOLANTS DE TYPE POLYMENE: PE, POM, PMMA, PA 6-6. LE DISPOSITIF D'OBSERVATION ET DE MESURE EST CONSTITUE D'UNE CHAMBRE A ARC DANS LAQUELLE L'INTERACTION ENTRE L'ISOLANT ET L'ARC EST OBTENUE EN DEPLACANT CE DERNIER A L'AIDE D'UN CHAMP MAGNETIQUE. LA CONCEPTION DE CETTE CHAMBRE PERMET UNE ETUDE EN VISEE PERPENDICULAIRE ET PARALLELE A L'ARC LORS DE L'INTERACTION. POUR CHACUN DES ISOLANTS LES ETUDES SPECTROSCOPIQUES ONT PERMIS DE DETERMINER, POUR DIFFERENTS COURANTS D'ARC, LA DENSITE ELECTRONIQUE DU PLASMA, LA TEMPERATURE DES ESPECES ATOMIQUES (H, C) ET MOLECULAIRES (C#2, CN) ET CELLE DES ELECTRONS. LE CHAMP ELECTRIQUE DANS LE PLASMA A ETE EGALEMENT OBSERVE ET MESURE. LES RESULTATS EXPERIMENTAUX OBTENUS MONTRENT QUE: - LE PLASMA EST CONSTITUE PRATIQUEMENT UNIQUEMENT DE VAPEURS D'ISOLANT, - LA DENSITE ELECTRONIQUE ET LES TEMPERATURES DES ATOMES ET DES ELECTRONS CROISSENT AVEC LE COURANT, LES TEMPERATURES DES MOLECULES VARIENT PEU AVEC LE COURANT, - LA DENSITE ELECTRONIQUE EST PRATIQUEMENT INDEPENDANTE DU MONDE DE VISEE INDIQUANT UNE REPARTITION HOMOGENE AU SEIN DU PLASMA, - LE POM (DELRIN) PRESENTE UN COMPORTEMENT ORIGINAL ET EN PARTICULIER IL MONTRE LA MEILLEURE RESISTANCE A L'ATTAQUE DE L'ARC ET LA PLUS GRANDE EFFICACITE POUR LA COUPURE A FAIBLE COURANT. CES RESULTATS APPORTENT UNE VALIDATION AUX ETUDES THEORIQUES EFFECTUEES AU LABORATOIRE.
Author : A. Douce
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (258 download)
Download or read book Etude numerique du comportement de particules métalliques injectées dans un plasma d'arc électrique written by A. Douce and published by . This book was released on 1996 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Aimé Césaire
Publisher : Wesleyan University Press
ISBN 13 : 0819577510
Total Pages : 994 pages
Book Rating : 4.8/5 (195 download)
Download or read book The Complete Poetry of Aimé Césaire written by Aimé Césaire and published by Wesleyan University Press. This book was released on 2017-10-03 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Complete Poetry of Aimé Césaire gathers all of Cesaire’s celebrated verse into one bilingual edition. The French portion is comprised of newly established first editions of Césaire’s poetic œuvre made available in French in 2014 under the title Poésie, Théâtre, Essais et Discours, edited by A. J. Arnold and an international team of specialists. To prepare the English translations, the translators started afresh from this French edition. Included here are translations of first editions of the poet’s early work, prior to political interventions in the texts after 1955, revealing a new understanding of Cesaire’s aesthetic and political trajectory. A truly comprehensive picture of Cesaire’s poetry and poetics is made possible thanks to a thorough set of notes covering variants, historical and cultural references, and recurring figures and structures, a scholarly introduction and a glossary. This book provides a new cornerstone for readers and scholars in 20th century poetry, African diasporic literature, and postcolonial studies.
Author : International Livestock Research Institute
Publisher : ILRI (aka ILCA and ILRAD)
ISBN 13 : 9789291460038
Total Pages : 268 pages
Book Rating : 4.4/5 (6 download)
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.
Author : Constantin Papastefanou
Publisher : Elsevier
ISBN 13 : 0080555985
Total Pages : 187 pages
Book Rating : 4.0/5 (85 download)
Download or read book Radioactive Aerosols written by Constantin Papastefanou and published by Elsevier. This book was released on 2011-07-28 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whenever radioactivity is released to the atmosphere, for example by the detonation of nuclear weapons or the testing of nuclear weapons or from nuclear reactor accidents that fraction of it which remains airborne for more than a few hours is liable to be attached to aerosol particles. The resulting radioactive aerosols are carried by atmospheric mixing processes until they settle out or are scavenged by precipitation. The radiation exposure pathway of maximum concern to humans is by inhalation of aerosols and their deposition in the respiratory tract. In this context, it is important to note that radioactive aerosols are commonly of natural origin alos. In particular, the associated radionuclides can be of natural terrestrial origin, such as the decay products of radon gas, or they can e cosmogenic, such as beryllium-7. The exposure of miners of uranium and other ores and minerals to radon and its aerosol-borne decay products is of major significance. The book describes the formation of aerosols, their aerodynamic size distribution, their atmospheric residence time, their sampling and measurement, the range of radioactive aerosols found and studied thus far, including man-made nuclides and radon decay products and their interaction with man, including deposition in the lung and subsequent health effects. Advanced level science handbook for researchers, scientists and academics Covers all aspects of radiation exposure in humans, including subsequent health implications Presents the latest findings and analysis in this highly topical area
Author : W. Petruk
Publisher : Elsevier
ISBN 13 : 0080527337
Total Pages : 287 pages
Book Rating : 4.0/5 (85 download)
Download or read book Applied Mineralogy in the Mining Industry written by W. Petruk and published by Elsevier. This book was released on 2000-11-29 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques of performing applied mineralogy investigations, and applications and capabilities of recently developed instruments for measuring mineral properties are explored in this book intended for practicing applied mineralogists, students in mineralogy and metallurgy, and mineral processing engineers. The benefits of applied mineralogy are presented by using in-depth applied mineralogy studies on base metal ores, gold ores, porphyry copper ores, iron ores and industrial minerals as examples. The chapter on base metal ores includes a discussion on the effects of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So4- on the recoveries of sphalerite, galena and chalcopyrite. The chapter on gold discusses various methods of determining the quantities of gold in different minerals, including 'invisible' gold in pyrite and arsenopyrite, so that a balance of the distribution of gold among the minerals can be calculated. This book also discusses the roles of pyrite, oxygen, moisture and bacterial (thiobacillus ferrooxidans) on reactions that produce acidic drainage from tailings piles, and summarizes currently used and proposed methods of remediation of acidic drainage.
Author : Gábor Földiák
Publisher :
ISBN 13 : 9780444416995
Total Pages : 564 pages
Book Rating : 4.4/5 (169 download)
Download or read book Industrial Application of Radioisotopes written by Gábor Földiák and published by . This book was released on 1986 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Environmental Protection Agency. Office of Radiation Programs
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.E/5 ( download)
Download or read book Radiation Protection Activities written by United States. Environmental Protection Agency. Office of Radiation Programs and published by . This book was released on 1976 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. C. Goodloe
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (317 download)
Download or read book Lightning Protection Guidelines for Aerospace Vehicles written by C. C. Goodloe and published by . This book was released on 1999 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Émilie du Châtelet
Publisher :
ISBN 13 : 9781693596483
Total Pages : 58 pages
Book Rating : 4.5/5 (964 download)
Download or read book Reason, Illusion, and Passion written by Émilie du Châtelet and published by . This book was released on 2019-09-16 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The amazing scientist, mathematician, philosopher Émilie du Châtelet (1706-49) has widely been hailed as a rare female intellectual in the Enlightenment. At the same time, her own ideas and contributions remain largely unknown and her writings are rarely read. This is unfortunate, since she has interesting contributions to and explanations of physics, metaphysics, religion, translation, the equality of the sexes, and ethics.This book is a selection of du Châtelet's philosophical writings, in new English translations: -Foreword to "Foundations of Physics"-On the Principles of Our Knowledge (From "Foundations of Physics")-On the Existence of God (From "Foundations of Physics")-On Liberty-Translator's Preface to Mandeville's "Fable of the Bees"-On the Resurrection of the Dead (from "Examinations of the Bible")-On Happiness
