Download or read book CONTRIBUTION A L ETUDE DES ALLIAGES NICKEL CHROME ET DE LEUR UTILISATION EN PROTHESE CONJOINTE written by ABDERRAHIM.. BEN ADDOU IDRISSI and published by . This book was released on 1990 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CONTRIBUTION A L ETUDE DES ALLIAGES NICKEL CHROME UTILISES EN PROTHESE FIXEE written by Denis Burgarella and published by . This book was released on 1986 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contribution l tude des tenons radiculaires en alliages nickel chrome written by Jean Mornay and published by . This book was released on 1977 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Les Alliages base nickel chrome written by François Aun Buor (médecin.) and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contribution l tude de l adh rence des d p ts de chrome et de nickel sur certains alliages d aluminium written by René Legrand and published by . This book was released on 1986 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contribution l tude du m canisme de pr cipitation cellulaire dans quelques alliages base nickel written by Jean-Paul Houvion and published by . This book was released on 1973 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Au cours de ces dernières années, les superalliages de nickel ont pris une telle importance que A. Royer a été amené à entreprendre au laboratoire l'étude du durcissement des alliages nickel, nickel-chrome, par le niobium et le tantale. Il s'est intéressé aux mécanismes de précipitation à 700°C et aux modes de déformation de ces alliages binaires et ternaires. Dans ces alliages, deux types de précipités apparaissent : un précipité métastable, un précipité d'équilibre. A. Royer n'a pu définir la nature du mécanisme de transformation précipité métastable -> précipité d'équilibre. C'est dans ce but que nous avons poursuivi ces travaux sur un même type d'alliage, mais en ajoutant des éléments tels que cobalt, titane, bore qui ont une influence sur ce mode de transformation. Nous avons, tout d'abord, suivi l'évolution des précipités du point de vue de leur structure et de leur morphologie en fonction de la composition des alliages et de la température de revenu. Une grande partie de notre travail est consacrée au mécanisme de transformation. Nous verrons qu'il s'agit d'un mécanisme de transformation cellulaire. Nous avons étudié la germination sur les joints de grain, sur les fautes de plus faibles énergies comme les plans de macles, et les fautes d'empilement. Nous proposons un mécanisme de formation d'une cellule. Nous avons entrepris, dans le cas de l'alliage quaternaire Ni-Cr-Nb-Co, une étude cinétique de cette précipitation et nous avons pu confronter nos résultats avec les théories en cours.

Download or read book Les alliages base de Nickel Chrome Mise en oeuvre au laboratoire Possibilit s et limites cliniques written by François Aun Buor (Chirurgien-dentiste) and published by . This book was released on 1980* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A German English Dictionary for Chemists written by Austin M 1876-1956 Patterson and published by Scholar Select. This book was released on 2015-08-08 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book A Phonetic Dictionary of the English Language written by Hermann Michaelis and published by . This book was released on 1913 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Philostratus written by Philostratus (the Athenian) and published by . This book was released on 1912 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biocompatibility of Co Cr Ni Alloys written by H. Hildebrand and published by Springer. This book was released on 1988 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: For several years now scientific and medical sLaff have recognised the risks of toxicity of certain metals contained in alloys used in Lhe manufacture of biomaterials protheses, implants, and artificial organs. A number or scientific and industrial research centres have focussed their investigations in this direction and international societies and commissions have organised meetings with specialists from complementary disciplines in attendance in attempts to guage the importance of biological risks and to determine the toxicity of certain metals, with the aim of establishing preventive measures and guidelines. In the last century great efforts have been made to reduce unwanted biological effects caused by orthopaedic implants. The problems of pain and infection were overcome and the development of modern technology has resulted in a convincing decrease in corrosion problems and mechanical failure, such that ostosynthesis and endoprosthesis have rapidly progressed beyond the level of tentative investingation.llowever, a number of problems still remain to be solved, such as the influence of the material type on the healing process and its relative speed. The increasing use of cobalt-,chromium-and nickel-containing alloys in surgical and dental implants has raised various questions concerning the biological consequences of chronic internal release of these elements in the human body. A total of 55 delegates representing 16 countries heard presentations of fundamental aspects, local and remote tissue response, immunopathology, clinical aspects, and manufacturing qual ity control issues.

Download or read book Terrestrial Space Radiation and Its Biological Effects written by Percival D. McCormack and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 845 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is based on the proceedings of an Advanced Study Institute (ASI) sponsored by the North Atlantic Treaty Organization (NATO) held October 1987 in Corfu, Greece. The Institute received financial support from the National Aeronautics and Space Administration, U.S.A. Armed Forces Radiobiology Research Institute, U.S.A. Department of Energy, U.S.A. Deutsche Forschungs-und Versuchanstalt fur Luft und Raumfahrt e.v., Kaln, Germany The advent of the shuttle era is providing fresh impetus for large space ventures such as communication centers, solar power stations, astronomical observatories, orbiting factories, and space based radar. Such ventures will rely heavily on an extensive and prolonged human presence in space doing in-orbit construction, maintenance, and opera tion. Among the advantages of location in space are the near zero gravity environment, commanding location, and the reception of solar energy and astronomical signals unattenuated by the atmosphere. Central to long-term manned space missions are the problems associated with the effects of exposure to ionizing radiations on humans. Manned space mis sions in the past have encountered relatively benign radiation environ ments because of their very short duration and orbit configuration. However, crew stay time of up to a year has been recently achieved by the Soviet space program; and Mars missions lasting several years are under serious consideration.

Download or read book Analecta Or Materials For a History of Remarkable Providences Mostly Relating to Scotch Ministers and Christians written by Robert Wodrow and published by BoD – Books on Demand. This book was released on 2024-05-25 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprint of the original, first published in 1842.

Download or read book Animal Sonar written by Paul E. Nachtigall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first meeting on biosonar that I had the opportunity to attend was held in 1978 on the Island of Jersey in the English Channel. That meeting, organized by Professor R.G. Busne1 and Dr. Jim Fish, was my introduction to an exciting and varied group of hard-working and dedicated scientists studying animal echolocation. They are, by nature, a very diverse group. They tend to publish in different journals and rarely interact despite the fact that they all work on echolocation. When they do interact as a group, as they did in Frascati Italy in 1966, in Jersey i~ 1978, and during the meeting reported in this volume, the meetings are intense, interesting, and exciting. This volume is a composition of a series of contributed papers written to foster an interdisciplinary understanding of the echolocation systems of animals. The echolocation pulse production studies in bats and dolphins have recently been concentrated on the ontogeny of infant pulses, other studies, with three-dimensional computer graphics and x-ray computed tomography, have concentrated on finally resolving the old controversy concerning the site of dolphin echolocation click production. Much has been accomplished on the analysis of bat neural structure and function. The intense effort directed toward understanding the structure, connections, and functional properties of parallel auditory pathways and the parallel and hierarchical processing of information by the mustached bat, has lead to dramatic breakthroughs in understanding brain function.