Contribution A Letude Aerodynamique Des Croisements De Train A Grande Vitesse

Download Contribution A Letude Aerodynamique Des Croisements De Train A Grande Vitesse full books in PDF, epub, and Kindle. Read online Contribution A Letude Aerodynamique Des Croisements De Train A Grande Vitesse ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Contribution à l'étude aérodynamique des croisements de train à grande vitesse

Download Contribution à l'étude aérodynamique des croisements de train à grande vitesse PDF Online Free

Author : Anne Reinhardt-Piechowiak
Publisher :
ISBN 13 :
Total Pages : 171 pages
Book Rating : 4.:/5 (49 download)

Book Synopsis Contribution à l'étude aérodynamique des croisements de train à grande vitesse by : Anne Reinhardt-Piechowiak

Download or read book Contribution à l'étude aérodynamique des croisements de train à grande vitesse written by Anne Reinhardt-Piechowiak and published by . This book was released on 1996 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: La circulation de trains à grande vitesse engendre de nombreux phénomènes aérodynamiques dont l'évaluation est nécessaire pour régler certains problèmes de sécurité ou de confort. Dans le cas particulier des croisements, il n'existe pas actuellement d'installation expérimentale appropriée. Par ailleurs, les essais en ligne sont onéreux et difficiles à mettre en œuvre. C’est pourquoi nous avons entrepris une étude numérique destinée à fournir les variations de pression qui apparaissent lors des croisements dans l'hypothèse simplificatrice d'un fluide idéal. Les effets instationnaires sont approchés par une méthode quasi-stationnaire. La méthode des singularités étant, d'après notre étude bibliographique, la mieux adaptée à la résolution de ce problème, nous avons développé un code de calcul, dit code sources, qui permet de déterminer l'écoulement incompressible autour de corps sans modélisation du sillage. Ce code, valide sur plusieurs obstacles de forme simple, a ensuite été applique aux trains en marche isolée et en croisement. Les résultats sont en bon accord avec ceux du LIMSI qui a initié les recherches numériques sur les trains à grande vitesse dans les années 70. Cependant, les vitesses toujours plus élevées impliquent désormais de prendre en considération le caractère subsonique de l'écoulement lors du croisement. De plus, la modélisation du sillage est nécessaire à l'étude des effets portants. Nous avons donc élaboré un autre code de calcul dit code sources-doublets, consacré aux écoulements autour d'obstacles avec prise en compte de la compressibilité de l'air et du sillage. Dans un premier temps, nous avons calculé les répartitions de pression autour d'obstacles largement étudiés dans la littérature, afin de valider la modélisation du sillage. Nous avons enfin évalué l'écoulement autour de deux trains en croisement, avec prise en compte de la compressibilité du fluide suivant la loi de Gothert. Nous avons ainsi estimé les efforts élémentaires et globaux s'exerçant sur les deux trains pour des configurations différentes. Les répartitions de pression obtenues serviront de base à l'étude des effets de fluide réel.

Dictionary of Building and Civil Engineering

Download Dictionary of Building and Civil Engineering PDF Online Free

Author : Don Montague
Publisher : Taylor & Francis
ISBN 13 : 9780419199106
Total Pages : 472 pages
Book Rating : 4.1/5 (991 download)

Book Synopsis Dictionary of Building and Civil Engineering by : Don Montague

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Livestock Policy Analysis

Download Livestock Policy Analysis PDF Online Free

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)

Book Synopsis Livestock Policy Analysis by : International Livestock Research Institute

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.

Technocratic Dreaming

Download Technocratic Dreaming PDF Online Free

Author : Paul James
Publisher :
ISBN 13 : 9781875285037
Total Pages : 248 pages
Book Rating : 4.2/5 (85 download)

Book Synopsis Technocratic Dreaming by : Paul James

Download or read book Technocratic Dreaming written by Paul James and published by . This book was released on 1990 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technocratic dreaming of very fast trains and Japanese designer cities.

An Introduction to Differential Manifolds

Download An Introduction to Differential Manifolds PDF Online Free

Author : Jacques Lafontaine
Publisher : Springer
ISBN 13 : 3319207350
Total Pages : 408 pages
Book Rating : 4.3/5 (192 download)

Book Synopsis An Introduction to Differential Manifolds by : Jacques Lafontaine

Download or read book An Introduction to Differential Manifolds written by Jacques Lafontaine and published by Springer. This book was released on 2015-07-29 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to differential manifolds. It gives solid preliminaries for more advanced topics: Riemannian manifolds, differential topology, Lie theory. It presupposes little background: the reader is only expected to master basic differential calculus, and a little point-set topology. The book covers the main topics of differential geometry: manifolds, tangent space, vector fields, differential forms, Lie groups, and a few more sophisticated topics such as de Rham cohomology, degree theory and the Gauss-Bonnet theorem for surfaces. Its ambition is to give solid foundations. In particular, the introduction of “abstract” notions such as manifolds or differential forms is motivated via questions and examples from mathematics or theoretical physics. More than 150 exercises, some of them easy and classical, some others more sophisticated, will help the beginner as well as the more expert reader. Solutions are provided for most of them. The book should be of interest to various readers: undergraduate and graduate students for a first contact to differential manifolds, mathematicians from other fields and physicists who wish to acquire some feeling about this beautiful theory. The original French text Introduction aux variétés différentielles has been a best-seller in its category in France for many years. Jacques Lafontaine was successively assistant Professor at Paris Diderot University and Professor at the University of Montpellier, where he is presently emeritus. His main research interests are Riemannian and pseudo-Riemannian geometry, including some aspects of mathematical relativity. Besides his personal research articles, he was involved in several textbooks and research monographs.

Ships and Seamanship in the Ancient World

Download Ships and Seamanship in the Ancient World PDF Online Free

Author : Lionel Casson
Publisher : Princeton University Press
ISBN 13 : 140085346X
Total Pages : 576 pages
Book Rating : 4.4/5 (8 download)

Book Synopsis Ships and Seamanship in the Ancient World by : Lionel Casson

Download or read book Ships and Seamanship in the Ancient World written by Lionel Casson and published by Princeton University Press. This book was released on 2014-07-14 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written to replace and extend Torr's Ancient Ships, this generously illustrated underwater Bible" traces the art and technology of Mediterranean ships and seamanship from their first crude stages (about 3000 B.C.) to the heyday of the Byzantine fleets. Originally published in 1971. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Biomimicry

Download Biomimicry PDF Online Free

Author : Janine M. Benyus
Publisher : Harper Collins
ISBN 13 : 0061958921
Total Pages : 324 pages
Book Rating : 4.0/5 (619 download)

Book Synopsis Biomimicry by : Janine M. Benyus

Download or read book Biomimicry written by Janine M. Benyus and published by Harper Collins. This book was released on 2009-08-11 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Repackaged with a new afterword, this "valuable and entertaining" (New York Times Book Review) book explores how scientists are adapting nature's best ideas to solve tough 21st century problems. Biomimicry is rapidly transforming life on earth. Biomimics study nature's most successful ideas over the past 3.5 million years, and adapt them for human use. The results are revolutionizing how materials are invented and how we compute, heal ourselves, repair the environment, and feed the world. Janine Benyus takes readers into the lab and in the field with maverick thinkers as they: discover miracle drugs by watching what chimps eat when they're sick; learn how to create by watching spiders weave fibers; harness energy by examining how a leaf converts sunlight into fuel in trillionths of a second; and many more examples. Composed of stories of vision and invention, personalities and pipe dreams, Biomimicry is must reading for anyone interested in the shape of our future.

Aeronomy

Download Aeronomy PDF Online Free

Author : P. M. Banks
Publisher : Elsevier
ISBN 13 : 1483260666
Total Pages : 445 pages
Book Rating : 4.4/5 (832 download)

Book Synopsis Aeronomy by : P. M. Banks

Download or read book Aeronomy written by P. M. Banks and published by Elsevier. This book was released on 2013-09-24 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeronomy, Part A is an attempt to make a comprehensive exposition of the processes in aeronomy, the study of composition, movement, and thermal balance of the upper regions of the planetary atmosphere. The text covers topics such as atmospheric regions and atmospheric density, the temperature and molecular mass of the atmosphere; the permanent constituents and the molecular and isotonic composition of the homosphere; and the transition from the homosphere to the heterosphere. Also covered are topics such as the temperature gradient and energies in the thermosphere, conditions at 200km and above 250km, solar radiation and ionization, and aeronomic reactions. The book is recommended for scientists, especially natural physicists, who would like to know more about the field of aeronomy and its advances.

Olive Growing

Download Olive Growing PDF Online Free

Author :
Publisher :
ISBN 13 : 9781741518696
Total Pages : 756 pages
Book Rating : 4.5/5 (186 download)

Book Synopsis Olive Growing by :

Download or read book Olive Growing written by and published by . This book was released on 2010 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Centre and Periphery in the Ancient World

Download Centre and Periphery in the Ancient World PDF Online Free

Author : Michael J. Rowlands
Publisher : Cambridge University Press
ISBN 13 : 9780521251037
Total Pages : 174 pages
Book Rating : 4.2/5 (51 download)

Book Synopsis Centre and Periphery in the Ancient World by : Michael J. Rowlands

Download or read book Centre and Periphery in the Ancient World written by Michael J. Rowlands and published by Cambridge University Press. This book was released on 1987-10-22 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collaborative volume is concerned with long-term social change. Envisaging individual societies as interlinked and interdependent parts of a global social system, the aim of the contributors is to determine the extent to which ancient societies were shaped over time by their incorporation in - or resistance to - the larger system. Their particular concern is the dependent relationship between technically and socially more developed societies with a strong state ideology at the centre and the simpler societies that functioned principally as sources of raw materials and manpower on the periphery of the system. The papers in the first part of the book are all concerned with political developments in the Ancient Near East and the notion of a regional system as a framework for analysis. Part 2 examines the problems of conceptualising local societies as discrete centres of development in the context of both the Near East and prehistoric Europe during the second millennium BC. Part 3 then presents a comprehensive analytical study of the Roman Empire as a single system showing how its component parts often relate to each other in uneven, even contradictory, ways.

Olive Production Manual

Download Olive Production Manual PDF Online Free

Author : G. Steven Sibbett
Publisher : UCANR Publications
ISBN 13 : 9781879906143
Total Pages : 190 pages
Book Rating : 4.9/5 (61 download)

Book Synopsis Olive Production Manual by : G. Steven Sibbett

Download or read book Olive Production Manual written by G. Steven Sibbett and published by UCANR Publications. This book was released on 2005 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bestselling manual is the definitive guide to olive production in California. This 180-page manual is fully illustrated with 40 tables, 19 line drawings, and 36 charts, and 100 color and black and white photos. The most notable additions to this edition include a new chapter on deficit irrigation, a greatly expanded chapter on olive oil production, and coverage of four new pests, including the olive fly. Includes production techniques for commercial growers worldwide - from orchard planning and maintenance to harvesting and postharvest processing. Contains information on pollination, pruning for shaker and vertical rotating comb harvest, mechanical pruning, deficit irrigation, mechanical harvesting methods including trunk-shaking and canopy contact harvesters, postharvest handling and processing methods, and olive oil production. Also includes information on new pests including olive fly, oleander scale, olive mite, and black vine weevil.

Minimum competence in scientific English

Download Minimum competence in scientific English PDF Online Free

Author : Sue Blattes
Publisher : L'Editeur : EDP Sciences
ISBN 13 : 9782868835888
Total Pages : 264 pages
Book Rating : 4.8/5 (358 download)

Book Synopsis Minimum competence in scientific English by : Sue Blattes

Download or read book Minimum competence in scientific English written by Sue Blattes and published by L'Editeur : EDP Sciences. This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage, devenu célèbre sous son sigle MCSE, a déjà été utilisé par plus de 50 000 étudiants, chercheurs, professionnels. L'objectif est de lire et écrire des textes en anglais scientifique avec facilité et pertinence. L'ouvrage est conçu pour que l'apprenant devienne un véritable utilisateur de l'anglais. La méthode originale repose sur l'analyse des fonctions et structures nécessaires : measurement, frequency, comparison, modification, link words, time, cause and consequence, hypothesis, modality, purpose and process, impersonal forms, compound nouns and adjectives. Dans chaque unit, des tests d'auto-évaluation permettent de se situer et de construire son parcours de formation, d'abord en définissant ses objectifs à l'aide des key points et du lexis, puis, de façon plus personnalisée, en puisant dans les examples in context, checkpoints (back to basics, word web), web search, FAQs... MCSE est l'outil de base d'une méthode qui comprend aussi d'autres outils dans la même collection (Listening Comprehension for Scientiflc English et Speaking Skills in Scientitic English). L'ouvrage est destiné à tout apprenant de niveau baccalauréat qui désire acquérir une réelle compétence dans l'écriture et la lecture de textes en anglais scientifique.

Simplexity

Download Simplexity PDF Online Free

Author : Alain Berthoz
Publisher : Odile Jacob
ISBN 13 : 2738147453
Total Pages : 194 pages
Book Rating : 4.7/5 (381 download)

Book Synopsis Simplexity by : Alain Berthoz

Download or read book Simplexity written by Alain Berthoz and published by Odile Jacob. This book was released on 2018-12-20 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Simplexity, as I understand it, is the range of solutions living organisms have found, despite the complexity of natural processes, to enable the brain to prepare an action and plan for the consequences of it. These solutions are simplifying principles that enable the processing of information or situations, by taking into account past experience and anticipating the future. They are neither caricatures, shortcuts, or summaries. They are new ways of asking questions, sometimes at the cost of occasional detours, in order to achieve faster, more elegant, more effective actions.” A. B. As Alain Berthoz demonstrates in this profoundly original book, simplicity is never easy; it requires suppressing, selecting, connecting, thinking, in order to then act in the best way possible. And what if we, in turn, are inspired by the living world to process the complexity that surrounds us? Alain Berthoz is professor at the Collège de France where he is co-director of the Laboratoire de physiologie de la perception et de l’action. [Laboratory for the physiology of perception and action]. He is a member of the French Academy of Sciences, and is the author of Le Sens du mouvement [The Brain's Sense of Movement] and La Décision [Emotion and Reason].

Popular Astronomy

Download Popular Astronomy PDF Online Free

Author : Camille Flammarion
Publisher :
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.A/5 ( download)

Book Synopsis Popular Astronomy by : Camille Flammarion

Download or read book Popular Astronomy written by Camille Flammarion and published by . This book was released on 1894 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Egypt, Canaan, and Israel in Ancient Times

Download Egypt, Canaan, and Israel in Ancient Times PDF Online Free

Author : Donald B. Redford
Publisher : Princeton University Press
ISBN 13 : 0691214654
Total Pages : 512 pages
Book Rating : 4.6/5 (912 download)

Book Synopsis Egypt, Canaan, and Israel in Ancient Times by : Donald B. Redford

Download or read book Egypt, Canaan, and Israel in Ancient Times written by Donald B. Redford and published by Princeton University Press. This book was released on 2020-06-30 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the time span from the Paleolithic period to the destruction of Jerusalem in 586 B.C., the eminent Egyptologist Donald Redford explores three thousand years of uninterrupted contact between Egypt and Western Asia across the Sinai land-bridge. In the vivid and lucid style that we expect from the author of the popular Akhenaten, Redford presents a sweeping narrative of the love-hate relationship between the peoples of ancient Israel/Palestine and Egypt.

A History of Working Watercraft of the Western World

Download A History of Working Watercraft of the Western World PDF Online Free

Author : Thomas C. Gillmer
Publisher : International Marine Publishing Company
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.F/5 ( download)

Book Synopsis A History of Working Watercraft of the Western World by : Thomas C. Gillmer

Download or read book A History of Working Watercraft of the Western World written by Thomas C. Gillmer and published by International Marine Publishing Company. This book was released on 1994 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: "When Working Watercraft was first published in 1972 it provided a historic record of these humble workboats that has yet to be equaled, and was hailed as "a book to treasure" by Nautical Magazine. Motor Boating & Sailing said "all of us owe Mr. Gillmer a debt of gratitude for his thoughtful record."".

The Earth Observer

Download The Earth Observer PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (318 download)

Book Synopsis The Earth Observer by :

Download or read book The Earth Observer written by and published by . This book was released on 2000 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: