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Recherche Des Perametres Physiques Caracterisant Lerosion Par Decharge Electrique Dans Un Liquide Dielectrique
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Book Synopsis Recherche des paramètres physiques caractérisant l'érosion par décharge électrique dans un liquide diélectrique by : Klaus-Jürgen Wilhelm
Download or read book Recherche des paramètres physiques caractérisant l'érosion par décharge électrique dans un liquide diélectrique written by Klaus-Jürgen Wilhelm and published by . This book was released on 1972 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETAT ACTUEL DES CONNAISSANCES SUR L'EROSION DES ELECTRODES. APPLICATION A L'USINAGE PAR ELECTROEROSION. PARAMETRES PHYSIQUES CARACTERISANT L'ACTION EROSIVE DE L'ARC. ETUDE DES GENERATEURS D'IMPULSIONS UTILISES. DESCRIPTION ET ESSAI D'UN GENERATEUR A RELAXATION (20 HZ) EXPERIMENTAL. INFLUENCE DE LA GEOMETRIE DE L'ESPACE DE DECHARGE ET INTERPRETATION THERMIQUE DES RESULTATS SUR L'ELECTROEROSION. COMPARAISON DE DIVERS METAUX D'ELECTRODE ET DE DIVERS MILIEUX LIQUIDES
Book Synopsis Recherche des peramètres physiques caractérisant l'érosion par décharge électrique dans un liquide diélectrique by : Klaus-Jürgen Wilhelm
Download or read book Recherche des peramètres physiques caractérisant l'érosion par décharge électrique dans un liquide diélectrique written by Klaus-Jürgen Wilhelm and published by . This book was released on 1973 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis La décharge électrique dans un milieu diélectrique liquide, contribution à l'étude de l'électro-érosion by : Nicolas Mironoff
Download or read book La décharge électrique dans un milieu diélectrique liquide, contribution à l'étude de l'électro-érosion written by Nicolas Mironoff and published by . This book was released on 1971 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Étude statistique de l'influence des paramètres expérimentaux et du champ magnétique sur les décharges sparks dans l'eau déionisée by : Korentin Géraud
Download or read book Étude statistique de l'influence des paramètres expérimentaux et du champ magnétique sur les décharges sparks dans l'eau déionisée written by Korentin Géraud and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les décharges Sparks sont des décharges électriques transitoires avec une courte durée de vie. Par rapport à son initiation en milieu gazeux, l'initiation de ce type de décharges dans un liquide diélectrique induit de nouveaux phénomènes physico-chimiques dans le plasma et aux interfaces plasma-liquide et plasma-électrodes. Depuis une vingtaine d'années, la recherche scientifique exploite les propriétés de ces décharges pour des applications diverses : dépollution de liquide, synthèse de nanoparticules, usinage par électro-érosion, etc. Dans ce contexte, ce mémoire a pour objectif d'apporter une meilleure compréhension de la physique des décharges Sparks dans les liquides diélectriques. Les décharges dans les liquides se caractérisent par un comportement stochastique fort. Des études statistiques d'un nombre important de décharges sur les caractéristiques électriques ont été effectuées en fonction de différents paramètres. Ces paramètres sont la distance inter-électrodes, la nature des électrodes ainsi que la polarité de la tension appliquée. L'acquisition des courbes courant-tension de chaque décharge permet de déterminer ses propriétés électriques, soient la tension de claquage, le courant de la décharge, le délai de claquage, la charge injectée, la probabilité de claquage, etc. L'influence d'un champ magnétique externe, en particulier son orientation par rapport à l'axe des électrodes, sur les caractéristiques de la décharge a ensuite été explorée. L'étude des interactions plasma-électrode en fonction de l'orientation du champ magnétique a été réalisée en analysant des images de la dispersion des impacts créés par les décharges sur la contre-électrode et de l'érosion de la pointe. De plus, nous avons démontré que la nature du matériau des électrodes, en particulier ses propriétés magnétiques, influe grandement le taux d'érosion de celles-ci. Les résultats rapportés dans ce mémoire contribueront non seulement à l'avancement de la physique des décharges dans les liquides, mais aussi au développement / optimisation des applications dans des différents domaines technologiques.
Book Synopsis Flexoelectricity in Liquid Crystals by : Agnes Buka
Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Monitoring soils in the environment with remote sensing and gis by : Richard Escadafal
Download or read book Monitoring soils in the environment with remote sensing and gis written by Richard Escadafal and published by IRD Orstom. This book was released on 1996 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: ISSS congress remote sensing
Author :John Henry Lorentz Publisher :Historical Dictionaries of Asia, Oceania, and the Middle East ISBN 13 : Total Pages :570 pages Book Rating :4.F/5 ( download)
Book Synopsis Historical Dictionary of Iran by : John Henry Lorentz
Download or read book Historical Dictionary of Iran written by John Henry Lorentz and published by Historical Dictionaries of Asia, Oceania, and the Middle East. This book was released on 2007 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an overview of specific events, movements, people, political and social groups, places, trends, and chronology. Allows for considerable exploration of a number of historical and contemporary topics and issues. The modern period, defined as 1800-present, is covered extensively.
Book Synopsis Nonlinear Optical Materials by : Jerome V. Moloney
Download or read book Nonlinear Optical Materials written by Jerome V. Moloney and published by Springer Science & Business Media. This book was released on 1998-08-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.
Author :Food and Agriculture Organization of the United Nations. Land and Water Development Division Publisher :Food & Agriculture Org. ISBN 13 :9789251034293 Total Pages :136 pages Book Rating :4.0/5 (342 download)
Book Synopsis Global and National Soils and Terrain Digital Databases (SOTER) by : Food and Agriculture Organization of the United Nations. Land and Water Development Division
Download or read book Global and National Soils and Terrain Digital Databases (SOTER) written by Food and Agriculture Organization of the United Nations. Land and Water Development Division and published by Food & Agriculture Org.. This book was released on 1993 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ZnO Thin Films written by Paolo Mele and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) is an n-type semiconductor with versatile applications such as optical devices in ultraviolet region, piezoelectric transducers, transparent electrode for solar cells and gas sensors. This book "ZnO Thin Films: Properties, Performance and Applications" gives a deep insight in the intriguing science of zinc oxide thin films. It is devoted to cover the most recent advances and reviews the state of the art of ZnO thin films applications involving energy harvesting, microelectronics, magnetic devices, photocatalysis, photovoltaics, optics, thermoelectricity, piezoelectricity, electrochemistry, temperature sensing. It serves as a fundamental information source on the techniques and methodologies involved in zinc oxide thin films growth, characterization, post-deposition plasma treatments and device processing. This book will be invaluable to the experts to consolidate their knowledge and provide insight and inspiration to beginners wishing to learn about zinc oxide thin films.
Book Synopsis Historical Dictionary of Pakistan by : Shahid Javed Burki
Download or read book Historical Dictionary of Pakistan written by Shahid Javed Burki and published by . This book was released on 1999 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pakistan is unlike most other countries in the emerging world. It is one of the two nations – the other being the state of Israel – founded on the basis of religion. Although it was created to provide a homeland for the Muslim community of British India, in its original form it was able to accommodate only about half of the people of Islamic faith who lived in the subcontinent. Pakistan’s birth in 1947 resulted in one of the largest movements of people in human history when some 14 million people left their homes, with 8 million Muslims leaving India for what is now Pakistan and 6 million Hindus and Sikhs moving in the opposite direction. This was the first large-scale incidence of ethnic cleansing the world was to witness. --
Download or read book PC ARCPLOT written by and published by . This book was released on 1994 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
