Download or read book Apport de la simulation num rique l valuation du bang sonique issu des m t orites written by Martin Henneton and published by . This book was released on 2013 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans le cadre du Traité d'Interdiction Complète des Essais nucléaires, les infrasons sont une des méthodes permettant de détecter les explosions nucléaires. Celles-ci doivent être distinguées des sources naturelles d'infrasons telles que les rentrées atmosphériques de météorites. Afin de modéliser une météorite comme source infrasonore, des simulations volumes finis de l'écoulement hypersonique sont portées en champ suffisamment lointain afin de satisfaire les hypothèses de l'acoustique. Elles sont ensuite couplées à une méthode de tracé de rayons non linéaire afin de propager la signature dans l'atmosphère jusqu'au sol. En gaz parfait, cette approche permet de valider les modèles théoriques basés sur des hypothèses simplificatrices. Les simulations plus réalistes en gaz réels à l'équilibre thermochimique montrent une forte modification du champ proche mais ont une influence modérée sur la signature acoustique au sol. Les résultats numériques sont comparés à des enregistrements infrasonores et sismiques dans le cadre de la météorite de Carancas (Pérou, 2007), largement documentée. Cette confrontation met en évidence un accord raisonnable sur les spectres des signaux mais une surestimation importante de la surpression simulée pour les récepteurs les plus proches du cratère d'impact. Cette étude nous a également permis de proposer une nouvelle trajectoire de rentrée de la météorite et d'identifier l'une des arrivées enregistrées comme liée au bang sonique.
Download or read book I Will Survive written by Gloria Gaynor and published by Macmillan + ORM. This book was released on 2014-03-11 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: I Will Survive is the story of Gloria Gaynor, America's "Queen of Disco." It is the story of riches and fame, despair, and finally salvation. Her meteoric rise to stardom in the mid-1970s was nothing short of phenomenal, and hits poured forth that pushed her to the top of the charts, including "Honey Bee," "I Got You Under My Skin," "Never Can Say Goodbye," and the song that has immortalized her, "I Will Survive," which became a #1 international gold seller. With that song, Gloria heralded the international rise of disco that became synonymous with a way of life in the fast lane - the sweaty bodies at Studio 54, the lines of cocaine, the indescribable feeling that you could always be at the top of your game and never come down. But down she came after her early stardom, and problems followed in the wake, including the death of her mother, whose love had anchored the young singer, as well as constant battles with weight, drugs, and alcohol. While her fans always imagined her to be rich, her personal finances collapsed due to poor management; and while many envied her, she felt completely empty inside. In the early 1980s, sustained by her marriage to music publisher Linwood Simon, Gloria took three years off and reflected upon her life. She visited churches and revisited her mother's old Bible. Discovering the world of gospel, she made a commitment to Christ that sustains her to this day.
Download or read book Vitamin C written by M B Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vitamin C is the first book to cover the history, chemistry, biochemistry, and medical importance of vitamin C and is the first to provide an in-depth, interdisciplinary study of this essential and fascinating compound. The book provides a comprehensive and systematic account of the vitamin C story, fully surveying the history of scurvy and how its cure led to the suggestion, discovery, and isolation of the vitamin, later named L-ascorbic acid. It describes in detail the vitamin's structure determination, synthesis and manufacture, and its oxidation products, derivatives and related compounds. Its key biochemical roles are fully categorized and explained, and the medical importance of the vitamin, including the recent use of so-called megadoses, is thoroughly discussed. Vitamin C will be of interest to a very wide readership and will provide useful background information and inspiration for students at various levels. It will also be relevant to the interested chemist or lay person, as well as those carrying out research in this area.
Download or read book The Acharnians written by Aristophanes and published by BoD – Books on Demand. This book was released on 2019-09-25 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproduction of the original: The Acharnians by Aristophanes
Download or read book Aucassin Et Nicolette written by Andrew Lang and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic French medieval love story is retold by Andrew Lang in modern language and style in this enchanting book. The tale of the noble knight Aucassin and his beloved Nicolette has captivated readers for centuries. Lang's retelling is accessible and engaging, making this classic work of literature accessible to modern audiences. 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 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. 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 Computational Continuum Mechanics written by Ahmed A. Shabana and published by Cambridge University Press. This book was released on 2011-12-12 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition presents the theory of continuum mechanics using computational methods. The text covers a broad range of topics including general problems of large rotation and large deformations and the development and limitations of finite element formulations in solving such problems. Dr Shabana introduces theories on motion kinematics, strain, forces and stresses and goes on to discuss linear and nonlinear constitutive equations, including viscoelastic and plastic constitutive models. General nonlinear continuum mechanics theory is used to develop small and large finite element formulations which correctly describe rigid body motion for use in engineering applications. This second edition features a new chapter that focuses on computational geometry and finite element analysis. This book is ideal for graduate and undergraduate students, professionals and researchers who are interested in continuum mechanics.
