CONTRIBUTION A L'ETUDE DE LA RUPTURE DES DIELECTRIQUES SOLIDES. PHENOMENES DE PROPAGATION DES DECHARGES ELECTRIQUES DANS DE FAIBLES VOLUMES PDF Download
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Author: JEAN-JACQUES.. ESCAICH
Publisher:
ISBN:
Category :
Languages : fr
Pages : 224
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Author: JEAN-JACQUES.. ESCAICH
Publisher:
ISBN:
Category :
Languages : fr
Pages : 224
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Author: Rachid Essolbi
Publisher:
ISBN:
Category :
Languages : fr
Pages : 278
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LE TRAVAIL PRESENTE DANS CE MEMOIRE CONCERNE L'ETUDE SUR LA MODELISATION DE LA RUPTURE DIELECTRIQUE DES ISOLANTS SOLIDES SOUS LES EFFETS THERMIQUES ET MECANIQUES COMBINES. L'INTERET QUE PRESENTE CETTE ETUDE PORTE SUR DEUX POINTS ESSENTIELS: LE PREMIER, A CARACTERE APPLIQUE, EST LA DETERMINATION DE LA RIGIDITE DIELECTRIQUE DES POLYETHYLENES UTILISES DANS L'ISOLATION DES CABLES D'ENERGIE ET DES TRANSFORMATEURS DANS LES GAMMES DE TEMPERATURE T DE 30 A 100C ET DE PRESSION P DE 50 A 500 BARS. LE SECOND, AYANT UN CARACTERE THEORIQUE, CONSISTE A PROPOSER DES MODELES THEORIQUES POUR EXPLIQUER LES PHENOMENES DE CLAQUAGE DE CES ISOLANTS. LE MEMOIRE COMPORTE QUATRE CHAPITRES. LE PREMIER EST CONSACRE A LA SYNTHESE BIBLIOGRAPHIQUE DES PHENOMENES DE CLAQUAGES ET DE CONDUCTIONS DANS LES ISOLANTS SOLIDES. DANS LE DEUXIEME CHAPITRE, ON EXPOSE LES RESULTATS CALCULES ET MESURES DU COURANT DE CONDUCTION, AINSI QUE LES VALEURS DE CHAMP DE CLAQUAGE THEORIQUE DEDUIT DE LA RESOLUTION DE L'EQUATION DE LA CHALEUR POUR CHAQUE MATERIAU. ON PRESENTE DANS LE TROISIEME CHAPITRE LES RESULTATS EXPERIMENTAUX DU CHAMP DE RUPTURE OBTENUS POUR LES TROIS POLYETHYLENES EN FONCTION DE P ET DE T. UNE ANALYSE DES RESULTATS AVEC L'INTRODUCTION DU PHENOMENE DE RUPTURE D'ORIGINE ELECTROMECANIQUE DANS LE MODELE DE CLAQUAGE EST DONNEE DANS LE CHAPITRE QUATRE. EN CONCLUSION, SUR LE PLAN THEORIQUE, ON A MONTRE QUE LE CLAQUAGE EST D'ORIGINE THERMIQUE ACCELERE PAR L'EFFET ELECTROMECANIQUE ET INITIE PAR L'EXISTENCE D'UNE CONDUCTIVITE DEPENDANT DE P, DE T ET DU CHAMP APPLIQUE. SUR LE PLAN PRATIQUE, CES RESULTATS PROUVENT QUE LA PRESSION PERMET D'AMELIORER LES PROPRIETES DIELECTRIQUES DE CES MATERIAUX UTILISES DANS DES CONDITIONS SOUS-MARINES
Author: Nicolas Mironoff
Publisher:
ISBN:
Category :
Languages : fr
Pages : 156
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Author: Olivier Fanjeau
Publisher:
ISBN:
Category :
Languages : fr
Pages : 113
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Author: Henri Martinot
Publisher:
ISBN:
Category :
Languages : fr
Pages : 102
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Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 442
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Author: Claude Cohen-Tannoudji
Publisher: John Wiley & Sons
ISBN: 3527345558
Category : Science
Languages : en
Pages : 790
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Book Description
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.
Author: Alfonso Jiménez
Publisher: Royal Society of Chemistry
ISBN: 1849738793
Category : Science
Languages : en
Pages : 374
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Book Description
A comprehensive overview of the synthesis, characterisation, properties and applications of poly(lactic acid) science and technology covering scientific, ecological, social and economic issues.
Author: Agnes Buka
Publisher: World Scientific
ISBN: 1848167997
Category : Science
Languages : en
Pages : 299
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Book Description
The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.
