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Contribution A Letude De Methodes De Sensibilisation De Fibres Optiques De Communication Et Mecanismes Associes
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Book Synopsis Contribution à l'étude de méthodes de sensibilisation de fibres optiques de communication et mécanismes associés by : Matthieu Lancry
Download or read book Contribution à l'étude de méthodes de sensibilisation de fibres optiques de communication et mécanismes associés written by Matthieu Lancry and published by . This book was released on 2004 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sous l'effet d'une insolation lumineuse (en général ultraviolette), l'indice de réfraction de la plupart des verres de silice se modifie de façon permanente. Cet effet est désigné sous le nom de photosensibilité. Le phénomène se révèle intéressant pour les télécommunications optiques dans la mesure où il permet l'inscription de composants optiques passifs dans le coeur des fibres optiques ou dans des films planaires. Dans le cadre de ce travail de doctorat, nous avons réalisé un ensemble d'études sur la photosensibilité de verres germanosilicates sous l'action d'insolations réalisées à l'aide d'un laser à ArF ([lambda]p=193nm)ou d'un laser à KrF ([lambda]p=248nm). Nous avons étudié trois différentes méthodes de sensibilisation des verres germanosilicates : l'hydrogénation à haute pression et à température ambiante, l'hypersensibilisation UV (hydrogénation, insolation unifor:me et dégazage) ainsi que la méthode de chargement en hydroxyles (élévation thermique à 1000ʿC durant un court instant puis dégazage). D'une part, il s'agissait de comparer les trois méthodes de sensibilisation des fibres optiques germanosilicates en terme d'efficacité, de 'stabilité des procédés et des variations d'indice ainsi que des pertes créées vers 1,5 micron. D'autre part, une étude destinée à préciser les mécanismes de la sensibilisation et les origines des changements d'indice a été présentée dans ce mémoire. A cet effet, nous avons enregistré les spectres d'excès de pertes induits dans l'infrarouge et l'ultraviolet lors de l'insolation UV de lames de préforme ou de fibres germanosilicates sensibilisées.
Book Synopsis Contribution a l'etude des reseaux locaux de transmission d'images sur fibres optiques by : Lotfi Kamoun
Download or read book Contribution a l'etude des reseaux locaux de transmission d'images sur fibres optiques written by Lotfi Kamoun and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :David Bensoussan Publisher :[Montréal] : Université du Québec, École de technologie supérieure ISBN 13 :9782921145213 Total Pages :176 pages Book Rating :4.1/5 (452 download)
Book Synopsis Introduction à la communication par fibre optique by : David Bensoussan
Download or read book Introduction à la communication par fibre optique written by David Bensoussan and published by [Montréal] : Université du Québec, École de technologie supérieure. This book was released on 2001 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Book Synopsis Urban Water Supply and Sanitation by :
Download or read book Urban Water Supply and Sanitation written by and published by Allied Publishers. This book was released on 1999 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: South Asia Rural Development Series. India's economic policies are aimed at increasing economic growth, improving market efficiency and competitiveness, and integrating the Indian economy with global markets. Much of the population and industrial growth is expected to occur in urban centers. Consequently, the demands on the Urban Water Supply and Sanitation sector (UWSS), will be great. Urban Water Supply and Sanitation states the UWSS sector needs urgent attention both to meet these new demands and to ensure that all city-dwellers have access to basic services at reasonable costs. This book outlines the way forward which includes a discussion on institutional reform and financial reform as well an action plan.
Book Synopsis 2nd Pan-African Symposium on the Sustainable Use of Natural Resources in Africa by : Bihini won wa Musiti
Download or read book 2nd Pan-African Symposium on the Sustainable Use of Natural Resources in Africa written by Bihini won wa Musiti and published by IUCN. This book was released on 2003 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bilingual publication results from a four-day symposium aimed at capturing the general directions and analytical issues that characterize approaches to sustainable use in Africa. The papers included in this work are organized under four major headings: modes of use, devolution, scale issues and external issues. Authors explore these themes through the use of case studies and the description of specific regional experiences. External issues are further explored in a series of commissioned policy papers which have also been included.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9251305536 Total Pages :435 pages Book Rating :4.2/5 (513 download)
Book Synopsis Regional Conference on building a future for sustainable small-scale fisheries in the Mediterranean and the Black Sea by : Food and Agriculture Organization of the United Nations
Download or read book Regional Conference on building a future for sustainable small-scale fisheries in the Mediterranean and the Black Sea written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-10-31 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the report, the conference focused on the main challenges for the sustainable development of small-scale fisheries, including promoting political commitment and tailored strategies, raising awareness, and sharing knowledge.
Download or read book Buyology written by Martin Lindstrom and published by Currency. This book was released on 2010-02-02 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEW YORK TIMES BESTSELLER • “A fascinating look at how consumers perceive logos, ads, commercials, brands, and products.”—Time How much do we know about why we buy? What truly influences our decisions in today’s message-cluttered world? In Buyology, Martin Lindstrom presents the astonishing findings from his groundbreaking three-year, seven-million-dollar neuromarketing study—a cutting-edge experiment that peered inside the brains of 2,000 volunteers from all around the world as they encountered various ads, logos, commercials, brands, and products. His startling results shatter much of what we have long believed about what captures our interest—and drives us to buy. Among the questions he explores: • Does sex actually sell? • Does subliminal advertising still surround us? • Can “cool” brands trigger our mating instincts? • Can our other senses—smell, touch, and sound—be aroused when we see a product? Buyology is a fascinating and shocking journey into the mind of today's consumer that will captivate anyone who's been seduced—or turned off—by marketers' relentless attempts to win our loyalty, our money, and our minds.
Book Synopsis Faecal Sludge Management by : Linda Strande
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.
Book Synopsis Market Assessment Study of New Media Learning Materials by : Canada. Industry Canada
Download or read book Market Assessment Study of New Media Learning Materials written by Canada. Industry Canada and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Women and Trade by : World Bank;World Trade Organization
Download or read book Women and Trade written by World Bank;World Trade Organization and published by World Bank Publications. This book was released on 2020-09-04 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trade can dramatically improve women’s lives, creating new jobs, enhancing consumer choices, and increasing women’s bargaining power in society. It can also lead to job losses and a concentration of work in low-skilled employment. Given the complexity and specificity of the relationship between trade and gender, it is essential to assess the potential impact of trade policy on both women and men and to develop appropriate, evidence-based policies to ensure that trade helps to enhance opportunities for all. Research on gender equality and trade has been constrained by limited data and a lack of understanding of the connections among the economic roles that women play as workers, consumers, and decision makers. Building on new analyses and new sex-disaggregated data, Women and Trade: The Role of Trade in Promoting Gender Equality aims to advance the understanding of the relationship between trade and gender equality and to identify a series of opportunities through which trade can improve the lives of women.
Book Synopsis Célébrons Nos Réussites Féministes by : Karen Blackford
Download or read book Célébrons Nos Réussites Féministes written by Karen Blackford and published by University of Ottawa Press. This book was released on 1999 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abuses by international corporations, withdrawal of social services and implementation of regressive legislation continue to impoverish women and reduce the quality of their everyday lives: women have reason to be demoralized. Recognizing this challenging and difficult situation, this volume reviews women's successes at feminizing Canadian institutions. It is intended to hearten the women's movement and show the potential for feminist change and suggest ways to realize this potential. Bilingual edition.
Download or read book Forestry Research Management written by and published by . This book was released on 1987 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Education for Critical Consciousness by : Paulo Freire
Download or read book Education for Critical Consciousness written by Paulo Freire and published by Bloomsbury Publishing. This book was released on 2021-05-20 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Famous for his advocacy of 'critical pedagogy', Paulo Freire was Latin America's foremost educationalist, a thinker and writer whose work and ideas continue to exert enormous influence in education throughout the world today. Education for Critical Consciousness is the main statement of Freire's revolutionary method of education. It takes the life situation of the learner as its starting point and the raising of consciousness and the overcoming of obstacles as its goals. For Freire, man's striving for his own humanity requires the changing of structures which dehumanize both the oppressor and the oppressed. This edition includes a substantial new introduction by Carlos Alberto Torres, Distinguished Professor and Founding Director of the Paulo Freire Institute, UCLA, USA. Translated by Myra Bergman Ramos.
Book Synopsis Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit by : Stuart Hill
Download or read book Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité 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 Doing Business 2020 written by World Bank and published by World Bank Publications. This book was released on 2019-11-21 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seventeen in a series of annual reports comparing business regulation in 190 economies, Doing Business 2020 measures aspects of regulation affecting 10 areas of everyday business activity.
Book Synopsis Clinical Chronopharmacology by : Alain Reinberg
Download or read book Clinical Chronopharmacology written by Alain Reinberg and published by CRC Press. This book was released on 1990-07 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodical and predictable changes in biological susceptibility and response to a large variety of chemical agents, including drugs and food, have been documented since the early 1970s. This book provides a survey of clinically-documented research in chronopharmacology.
