الصفحة 13
الصفحة 13
Wind Turbine Control Systems : Principles, Modelling and Gain Scheduling Design
Modern wind turbines generally operate at variable speed in order to maximise the conversion efficiency below rated power and to reduce loading on the drive-train. In addition, pitch control of the blades is usually employed to limit the energy captured during operation above rated wind speed. The higher complexity of variable-speed variable-pitch turbines is offset by the benefits of control flexibility, namely, higher conversion efficiency, better power quality, longer useful life; because of the immediate impact of control on the cost of wind energy, reliable high-performance controllers are essential in making wind technology competitive.
Wind Energy Engineering : A Handbook for Onshore and Offshore Wind Turbines
Covering a wider spectrum of topics in the field of wind turbines (offshore and onshore), this new edition includes new intelligent turbine designs and optimization, current challenges and efficiencies, remote sensing and smart monitoring, and key areas of advancement, such as floating wind turbines. Each chapter includes a research overview with a detailed analysis and new case studies looking at how recent research developments can be applied.
Wind Energy ; Proceedings of the Euromech Colloquium 464b "Wind Energy"
This book comprises reports on basic research, as well as research related to the practical exploitation and application of wind energy. "Wind Energy" comprehensively describes the atmospheric turbulent wind condition on different time scales, and the interaction of wind turbines with both wind and water flows, which are significant factors to consider for the design, operation and maintenance of wind turbines in offshore conditions.
Wind Energy : Fundamentals, Resource Analysis and Economics
In view of the rapid growth of wind industry, Universities, all around the world, have given due emphasis to wind energy technology in their undergraduate and graduate curriculum. These academic programmes attract students from diver- fied backgroundswhich is discussed in the preliminary chapters of this book.
Wind Effects on Buildings and Design of Wind-Sensitive Structures
The articles in this book, written by seven internationally known experts, present the fundamentals and practical applications of comtemporary wind engineering dealing with wind-building interaction complex problems from the perspective of a structural designer. Both experimental and computational approaches and their relative merits are presented and analyzed. The book presents state-of-the-art material in a rapidly progressing area that cannot be found in any other of the limited number of books in this area. Junior architects and engineers will learn the treatment of wind engineering , an area not traditionally taught at underground university programs. Junior structural designers will be informed about the progress made on experimental and computational wind engineering design of complex structures.
WiMax Operators Manual : Building 802.16 Wireless Networks
Includes most of the material from the first edition, plus new discussions about the ultra-fast mobile telephone standard High Speed Downlink Packet Access (HSDPA) and the Ultra Wideband (UWB) technology. Other topics include mobile voice and entertainment, new backup systems, and changes to DSL technologies. The book addresses the planning, construction, and day-to-day operation of a standards-based broadband wireless network. It examines the advantages of broadband wireless and how it constitutes an ideal solution. It also explains the unique difficulties, challenges, and limitations of broadband wireless. This book illustrates how to plan and run networks, and indicates which specialized services should be secured. You’ll learn how to plan a successful, profitable broadband wireless network in a short amount of time.
Wilson and Gisvold's Textbook of organic medicinal and pharmaceutical chemistry
Serves as the discipline of medicinal chemistry for both graduate and undergraduate pharmacy and chemistry students as well as practicing pharmacists. This book begins with the fundamental principles of chemistry, biochemistry, and biology that underlie the discipline of medicinal chemistry.
Wilkins' clinical practice of the dental hygienist
Progresses through crucial topics in dental hygiene in a straightforward format to ensure students develop the knowledge and skills they need for successful, evidence-based practice in today's rapidly changing oral health care environment. The Fourteenth Edition continues to offer the breadth and depth of coverage necessary not only for foundation courses bur for use throughout the entire dental hygiene curriculum.The workbook is now included in Navigate Premier Access! The engaging workbook reinforces important concepts of the main text and provides hands-on exercises that put those concepts into practice.
Wiley GAAP 2020 : Interpretation and Application of Generally Accepted Accounting Principles
Covering all codifications by the Financial Accounting Standards Board (FASB) - including the latest updates - this book provides clear explanations and practical examples for real-world application of these dynamic guidelines. Each chapter includes relevant sources of GAAP and expert guidance on interpretation, terminology, relevant concepts, and applicable rules, while in-depth discussion on the issues surrounding specific pronouncements offers informative perspective for a variety of scenarios.
Wild-type Food in Health Promotion and Disease Prevention : The Columbus Concept
Wild-Type Food in Health Promotion and Disease Prevention: The Columbus Concept is one of the first books to focus on the role of omega-6/3 polyunsaturated fatty acids in unhealthy diets.
Wildlife Study Design
Taking an approach from both a basic and applied perspective, the book covers numerous aspects of study design including variable classification, the necessity of randomization and replication in wildlife study design, the three major types of designs in decreasing order of rigor, detection probabilities, adaptive cluster methods, double sampling, sampling of rare species, effect size and power, and impact assessment, just to name a few. The concepts provided by the book make study design both accessible and comprehensive to a wide array of readers.
Wildlife and emerging zoonotic diseases : The biology, circumstances and consequences of cross-species transmission
Wildlife and the zoonotic pathogens they reservoir are the source of most emerging infectious diseases of humans. This volume provides an overview of zoonotic pathogen emergence with an emphasis on the role of wildlife.
Wildland Fire Smoke in the United States : A Scientific Assessment
This book synthesizes current information on wildland fire smoke in the United States, providing a scientific foundation for addressing the production of smoke from wildland fires. This will be increasingly critical as smoke exposure and degraded air quality are expected to increase in extent and severity in a warmer climate. Accurate smoke information is a foundation for helping individuals and communities to effectively mitigate potential smoke impacts from wildfires and prescribed fires. Each chapter provides a summary of priorities for future research that provide a roadmap for developing scientific information that can improve smoke and fire management over the next decade.
Wild Urban Woodlands : New Perspectives for Urban Forestry
This volume focuses on a particular component of the urban forest - trix - urban wild woodlands. We understand these to be stands of woody plants, within the impact area of cities, whose form is characterized by trees and in which a large leeway for natural processes makes possible a convergence toward wilderness. The wilderness character of these urban woodlands can vary greatly. We differentiate between two kinds of w- derness. The "old wilderness" is the traditional one; it may return slowly to woodland areas when forestry use has been abandoned. The enhancement of wilderness is a task already demanded of urban and peri-urban forestry in many places. This book would like to direct the attention of the reader to a second kind of wilderness, which we call "new wilderness." This arises on heavily altered urban-industrial areas where abandonment of use makes such change possible. The wild nature of urban abandoned areas was discovered in the 1970s through urban-ecological research.
Wiki: Web Collaboration
Wikis are Web-based applications that allow all users not only to view pages but also to change them. The recent success of the Internet encyclopedia Wikipedia has drawn increasing attention from private users, small organizations and enterprises to the various possible uses of wikis. Their simple structure and straightforward operation make them a serious alternative to expensive content management systems and also provide a basis for many applications in the area of collaborative work. We show the practical use of wikis in carrying out projects for users as well as for maintainers. This includes a step-by-step introduction to wiki philosophy, social effects and functions, a survey of their controls and components, and the installation and configuration of the wiki clones MediaWiki and TWiki. In order to exemplify the possibilities of the software, we use it as a project tool for planning a conference.
Wiki: Web Collaboration
Wikis are Web-based applications that allow all users not only to view pages but also to change them. The success of the Internet encyclopedia Wikipedia has drawn increasing attention from private users, small organizations and enterprises to the various possible uses of wikis. Their simple structure and straightforward operation make them a serious alternative to expensive content management systems and also provide a basis for many applications in the area of collaborative work. We show the practical use of wikis in carrying out projects for users as well as for maintainers. This includes a step-by-step introduction to wiki philosophy, social effects and functions, a survey of their controls and components, and the installation and configuration of the wiki clones MediaWiki, TWiki and Confluence. In order to exemplify the possibilities of the software, we use it as a project tool for planning a conference.
Wi-Fi™, Bluetooth™, Zigbee™ and WiMax™
Wi-Fi™, Bluetooth™, ZigBee™ and WiMax™ will provide a complete and detailed description of the recent wireless technologies including Wi-Fi, Bluetooth, ZigBee and WiMAX. These technologies are considered to be important topics in the telecommunication industry in the next decade. Some critical subjects will be particularly developed such as security, quality of service, roaming and power conservation. Wi-Fi™, Bluetooth™, ZigBee™ and WiMax™will also include some chapters on practicals aspects.
Wie ticken Jugendliche 2016? : Lebenswelten von Jugendlichen im Alter von 14 bis 17 Jahren in Deutschland = How do young people tick in 2016? : Living environments of young people aged 14 to 17 in Germany
How do young people live and experience their everyday life? How do you perceive the historical and current conditions in Germany and in the world? What makes sense to them? What life plans do they pursue? What role do mobility, sustainability and digital media play in your life? The SINUS Youth Study 2016 empirically investigates these and other questions and depicts the variety of perspectives of young people's living environments. She succeeds in doing this particularly vividly by allowing 14 to 17-year-olds to have their say in the form of numerous quotes and creative self-testimonies. It is also unique that young people provide photographic insights into their living environments and, for the first time, have asked their questions themselves as interviewers. The SINUS youth study thus gives the young generation a public voice that needs to be heard carefully. Because looking at young people is always a look at the future of a country.
Widening Access to Education as Social Justice : Essays in Honor of Michael Omolewa
Universal access to education, a gage of social justice, is much more than a right—it is an open door to freedom: the freedom to initiate, to act and to take one’s own destiny in hand. True, access to education has progressed considerably in recent years, notably to the benefit of women who, nonetheless, still represent two-thirds of illiterate adults. But the strides made conceal widening disparities, with some countries still suffering from a combination of backwardness and inequality. This means that we must step up our efforts.This book, issued in honor of the President of the General Conference of UNESCO, Michael Abiola Omolewa, who has devoted his life to the cause of education, is a major contribution to helping women and men of goodwill, who must more than ever fight to secure for the have-nots of this world the right to education.
Wide-Gap Chalcopyrites
Chalcopyrites, in particular those with a wide band gap, are fascinating materials in terms of their technological potential in the next generation of thin-film solar cells and in terms of their basic material properties. They exhibit uniquely low defect formation energies, leading to unusual doping and phase behavior and to extremely benign grain boundaries. This book collects articles on a number of those basic material properties of wide-gap chalcopyrites, comparing them to their low-gap cousins. They explore the doping of the materials, the electronic structure and the transport through interfaces and grain boundaries, the formation of the electric field in a solar cell, the mechanisms and suppression of recombination, the role of inhomogeneities, and the technological role of wide-gap chalcopyrites.
