Download or read book Mod lisation des entra nements grande plage de vitesse en vue de leur conception written by José Roberto Figueroa Barnier and published by . This book was released on 2008 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les entraînements électriques à grande plage de vitesse sont des ensembles convertisseur machine qui se caractérisent par un couple à faible vitesse supérieur au couple à haute vitesse, comme dans le cas des applications de traction. Leur performance dépend fortement de la puissance apparente du convertisseur, des impédances de la machine et de la loi de commande utilisée. Les méthodes de conception qui séparent la conception de la machine de celle de l'onduleur et de celle de la loi de commande ne permettent pas toujours de trouver une solution adéquate. Il est donc nécessaire de réaliser une optimisation globale de tout l'ensemble convertisseur - machine - système de contrôle. Lors de l'optimisation, le nombre d'itérations pour arriver à une solution est important et le temps de calcul est un facteur à considérer. Ce travail présente des méthodes analytiques de modélisation adaptées pour l'optimisation des systèmes d'entraînement. Les méthodes se basent sur une modélisation de la machine sous la forme d'un circuit équivalent et une modélisation du convertisseur sous la forme de contraintes de fonctionnement. Elles permettent de calculer rapidement les courants, les tensions, les pertes, le couple, la commande et les performances pour les différents points de fonctionnement du cahier des charges. Ces modèles sont illustrés par des exemples de conception des systèmes de traction et d'un alternateur de voiture. Ce travail présente aussi un analyse des machines polyphasées en mode dégradé en utilisant les modèles développés.
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Download or read book Precisions on the Present State of Architecture and City Planning written by Le Corbusier and published by Park Publishing (WI). This book was released on 2015-03 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coinciding with the 50th anniversary of his death (August 27, 2015), one of Le Corbusier's most significant books becomes available again in English. We are doing a reprint of MIT Press's first edition of 1991, which again is based on the original French version of 1930, with an introduction added by the author in 1960. While the MIT Press version had black-and-white illustrations throughout, Park Books' new edition features some of Le Corbusier's drawings in color as they were in the earlier French editions. A new essay by British scholar Tim Benton, written for this new edition, contextualizes the book within Le Corbusier's oeuvre and comments on its lasting significance. An also new appendix explains specialist terms and provides background information on persons and historic events no longer necessarily known to a younger generation of architects. The Precisions, as the book is known commonly, emerged from a spontaneous and exuberant series of 10 lectures Le Corbusier gave in Buenos Aires during the fall of 1929. As he spoke, Le Corbusier improvised drawings on large sheets of paper with crayons. While similar drawings appear in other works, here all the lectures and images appear in their original context as Le Corbusier assembled them more than 80 years ago. The texts reflect a new maturity in Le Corbusier's thinking and an extreme confidence in the development of his ideas. The drawings and lectures are unique in their eloquent and concise summary of his philosophy of architecture and urban design, stating the principles that informed his work from the 1920s on. They contain some of his most compelling aphorisms, both verbal and visual, covering technique as the basis of architecture, the human scale in design, furniture, the private house, apartments and office buildings, the city, the League of Nations competition, teaching architecture, and a splendid analysis of the transformation of his own work in houses from La Roche-Jeanneret to the Villa Savoye. [Based on MIT Press's copy for their 1991 edition]
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Satellite Situation Report written by Goddard Space Flight Center. Office of Public Affairs and published by . This book was released on 1977 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Constructions in French written by Myriam Bouveret and published by John Benjamins Publishing. This book was released on 2012-12-19 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Constructions in French is the first collected volume to focus on French syntax from a constructionist perspective. It has been written with two kinds of readers in mind: for readers interested in the relationship between the French linguistic tradition and cognitive linguistics, and for readers who would like to examine how constructional analysis can be applied to a variety of French language phenomena. The eleven papers illustrate the insights generated by combining lexicalist and constructionist approaches, focusing on syntax as a dynamic system and using corpus data from a variety of speech genres. The contributions provide new findings about French usage trends (in linguistics and in psycholinguistics), including insights into new, nonstandard and poorly studied constructions.
Download or read book Inquiry by Design written by John Zeisel and published by CUP Archive. This book was released on 1984-05-25 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Illustrating his points with many references to actual projects, John Zeisel explains, in non-technical language, the integration of social science research and design. The book provides a provocative text for students in all the fields related to environm
Download or read book Boundary Layer Theory written by Hermann Schlichting (Deceased) and published by Springer. This book was released on 2016-10-04 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of the near-legendary textbook by Schlichting and revised by Gersten presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with particular emphasis on the flow past bodies (e.g. aircraft aerodynamics). The new edition features an updated reference list and over 100 additional changes throughout the book, reflecting the latest advances on the subject.
Download or read book Quantum Mechanics Volume 3 written by Claude Cohen-Tannoudji and published by John Wiley & Sons. This book was released on 2019-12-16 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Basic Technics in Ecological Farming Techniques de Base en Agriculture Biologique Grunds tzliche Verfahren der kologischen Landwirtschaft Le Maintien de la Fertilit des Sols The Maintenance of Soil Fertility Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Vessel Melt Retention and Ex Vessel Corium Cooling IAEA Tecdoc No 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Download or read book The Theory of Propellers written by Theodore Theodorsen and published by . This book was released on 1944 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: A technical method is given for calculating the axial interference velocity of a propeller. The method involves the use of certain weight functions P, Q, and F. Numerical values for the weight functions are given for two-blade, three-blade, and six-blade propellers.
Download or read book Acoustics of Porous Media written by Thierry Bourbié and published by Editions TECHNIP. This book was released on 1987 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas cooled Nuclear Reactors written by France. Commissariat à l'énergie atomique and published by . This book was released on 2006 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Debris written by Heiner Klinkrad and published by Springer Science & Business Media. This book was released on 2006-09-01 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future evolution of the debris environment will be forecast on the basis of traffic models and possible hazard mitigation practices. The text shows how large trackable objects will have re-entry pinpointed and predictions made on related risk assessment for possible ground impact. Models will also be described for meteoroids which are also a prevailing risk.
Download or read book Global Burden of Disease and Risk Factors written by Alan D. Lopez and published by World Bank Publications. This book was released on 2006-04-02 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strategic health planning, the cornerstone of initiatives designed to achieve health improvement goals around the world, requires an understanding of the comparative burden of diseases and injuries, their corresponding risk factors and the likely effects of invervention options. The Global Burden of Disease framework, originally published in 1990, has been widely adopted as the preferred method for health accounting and has become the standard to guide the setting of health research priorities. This publication sets out an updated assessment of the situation, with an analysis of trends observed since 1990 and a chapter on the sensitivity of GBD estimates to various sources of uncertainty in methods and data.
Download or read book Biomechanics VIII written by Hideji Matsui and published by . This book was released on 1983 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
