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Author: Jose Ignacio Palacios
Publisher: Eae Editorial Academia Espanola
ISBN: 9783846578926
Category :
Languages : es
Pages : 200
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Book Description
Los sistemas de control activo de ruido (Active Noise Control, ANC) permiten modificar un campo acustico indeseado y generar en su interior un volumen de atenuacion, esto es, una region del espacio donde el nivel de presion sonora es inferior al existente con anterioridad a la puesta en funcionamiento del sistema. En general, el desarrollo de un sistema de control activo conlleva una gran dificultad tecnica. Por otra parte, las tecnicas y herramientas de calculo numerico aplicadas a la prediccion del comportamiento vibro-acustico de estructuras han alcanzado en los ultimos tiempos un elevado nivel de maduracion. Estas tecnicas han sido sin embargo escasamente aplicadas en la prediccion de los campos acusticos a obtener mediante sistemas de control activo de ruido. De esta forma continuan hoy en dia desarrollandose aplicaciones de control activo en base a ensayos de prueba y error, en los que no se garantiza que la disposicion final seleccionada sea la disposicion optima. Este documento tiene por objetivo establecer y validar una metodologia de modelado y prediccion que permita reducir los procedimientos de prueba y error en el diseno de sistemas de control activo de ruido."
Author: Jose Ignacio Palacios
Publisher: Eae Editorial Academia Espanola
ISBN: 9783846578926
Category :
Languages : es
Pages : 200
Get Book Here
Book Description
Los sistemas de control activo de ruido (Active Noise Control, ANC) permiten modificar un campo acustico indeseado y generar en su interior un volumen de atenuacion, esto es, una region del espacio donde el nivel de presion sonora es inferior al existente con anterioridad a la puesta en funcionamiento del sistema. En general, el desarrollo de un sistema de control activo conlleva una gran dificultad tecnica. Por otra parte, las tecnicas y herramientas de calculo numerico aplicadas a la prediccion del comportamiento vibro-acustico de estructuras han alcanzado en los ultimos tiempos un elevado nivel de maduracion. Estas tecnicas han sido sin embargo escasamente aplicadas en la prediccion de los campos acusticos a obtener mediante sistemas de control activo de ruido. De esta forma continuan hoy en dia desarrollandose aplicaciones de control activo en base a ensayos de prueba y error, en los que no se garantiza que la disposicion final seleccionada sea la disposicion optima. Este documento tiene por objetivo establecer y validar una metodologia de modelado y prediccion que permita reducir los procedimientos de prueba y error en el diseno de sistemas de control activo de ruido."
Author: Commission for Environmental Cooperation (Montréal, Québec). Secretariat
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 240
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Book Description
The North American Mosaic has four overarching features. First, it is, to the extent feasible, based on comparable information on the status and trends of major indicators of the state of the environment in Canada,Mexico, and the United States. Second, the report confirms that these three countries together make up an incredibly complex, dynamic, and interconnected ecosystem in which humans play a dominant and decisive role. Third, the report raises important and sometimes disquieting questions concerning the sustainability of some current trends. Finally, the report is a reminder that our economic, social, and physical well-being are utterly dependent on the life-sustaining services provided by nature. This report emphasizes the importance of developing mutually compatible economic, social, and environmental goals and policies across the three-country region.
Author: Santiago Ramón y Cajal
Publisher:
ISBN:
Category : Nervous system
Languages : en
Pages : 702
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Book Description
Author: Peter Hall
Publisher: Wiley-Blackwell
ISBN: 9780631199434
Category : Social Science
Languages : en
Pages : 502
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Book Description
Cities of Tomorrow is a critical history of planning in theory and practice in the twentieth century, as well as of the social and economic problems and opportunities that gave rise to it. Trenchant, perceptive, global in coverage, this book is an unrivalled account of its crucial subject. The third edition of Cities of Tomorrow is comprehensively revised to take account of abundant new literature published since its original appearance, and to view the 1990s in historical perspective. This is the definitive edition, reviewing the development of the modern planning movement over the entire span of the twentieth century.
Author: Walter Leal Filho
Publisher: Springer
ISBN: 3319088378
Category : Science
Languages : en
Pages : 595
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Book Description
This book documents and disseminates experiences from a wide range of universities, across the five continents, which showcase how the principles of sustainable development may be incorporated as part of university programmes, and present transformatory projects and programmes, showing how sustainability can be implemented across disciplines. Sustainability in a higher education context is a fast growing field. Thousands of universities across the world have signed declarations or have committed themselves to integrate the principles of sustainable development in their activities: teaching, research and extension, and many more will follow.
Author: Debi Prasanna Pattanayak
Publisher:
ISBN:
Category : Literacy
Languages : en
Pages : 128
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Book Description
Author: Makoto Sei Watanabe
Publisher: L'Arcaedizioni
ISBN:
Category : Architecture
Languages : en
Pages : 152
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Book Description
The works of Makoto Sei Watanabe combine the functionality of aesthetic experience and the calculated organization of structures with the evocation of deep ancestral memories.
Author: Maruška Svašek
Publisher: Routledge
ISBN: 1135704678
Category : Social Science
Languages : en
Pages : 215
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Book Description
This book provides insights into the emotional dimensions of human mobility. Drawing on findings and theoretical discussions in anthropology, sociology, cultural studies, philosophy, linguistics, migration studies, human geography and political science, the authors offer interdisciplinary perspectives on a highly topical debate, asking how 'emotions' can be conceptualised as a tool to explore human mobility. Emotions and Human Mobility investigates how emotional processes are shaped by migration, and vice versa. To what extent are people’s feelings about migration influenced by structural possibilities and constraints such as immigration policies or economic inequality? How do migrants interact emotionally with the people they meet in the receiving countries, and how do they attach to new surroundings? How do they interact with 'the locals', with migrants from other countries, and with migrants from their own homeland? How do they stay in touch with absent kin? The volume focuses on specific cases of migration within Europe, intercontinental mobility, and diasporic dynamics. Critically engaging with the affective turn in the study of migration, Emotions and Human Mobility will be highly relevant to scholars involved in current theoretical debates on human mobility. Providing grounded ethnographic case studies that show how theory arises from concrete historical cases, the book is also highly accessible to students of courses on globalisation, migration, transnationalism and emotion. This book was originally published as a special issue of the Journal of Ethnic and Migration Studies.
Author: Mark H. Beers
Publisher: Merck
ISBN: 9780911910889
Category : Medical
Languages : en
Pages : 1507
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Book Description
A unique interdisciplinary guide that addresses the challenges of geriatric care, now with a two-color design, all-new illustrations, and many redesigned tables.
Author: John Bitchener
Publisher: Routledge
ISBN: 1136218394
Category : Education
Languages : en
Pages : 176
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Book Description
Focused on the writing process, A Guide to Supervising Non-native English Writers of Theses and Dissertations presents approaches that can be employed by supervisors to help address the writing issues or difficulties that may emerge during the provisional and confirmation phases of the thesis/dissertation journey. Pre-writing advice and post-writing feedback that can be given to students are explained and illustrated. A growing number of students who are non-native speakers of English are enrolled in Masters and PhD programmes at universities across the world where English is the language of communication. These students often encounter difficulties when writing a thesis or dissertation in English – primarily, understanding the requirements and expectations of the new academic context and the conventions of academic writing. Designed for easy use by supervisors, this concise guide focuses specifically on the relationship between reading for and preparing to write the various part-genres or chapters; the creation of argument; making and evaluating claims, judgements and conclusions; writing coherent and cohesive text; meeting the generic and discipline-specific writing conventions; designing conference abstracts and PowerPoint presentations; and writing journal articles.
