Download or read book Conception de syst mes de gestion d nergie pour microsyst mes autonomes written by Yasser Ammar and published by . This book was released on 2007 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse présente de nouvelles approches pour la gestion d'énergie dans un microsystème autonome. Le microsystème autonome est la nouvelle génération des nœuds de capteurs sans fil. Le microsystème autonome est alimenté via un microgénérateur qui récolte l'énergie ambiante. Cette thèse s'est déroulée dans le cadre du projet européen VIBES (VIBration Energy Scavenging FP6 IST-1-STREP-507911). Ce projet s'intéresse à récolter l'énergie ambiante issue de vibrations mécaniques. La problématique dans la conception du module de gestion d'énergie est la très basse tension (dizaines de millivolts), et l'ultra basse puissance (centaine de nanowatts) fournie par le microgénérateur. Trois approches sont proposées dans cette thèse. La première approche est une technique pour l'amplification de la tension du microgénérateur. Celle-ci est vérifiée par l'application d'une technique de commutation dite SSH (Synchronized Switch Harvesting). Cette technique est validée pour des générateurs de taille centimétrique. L'influence de la réduction d'échelle sur cette technique est étudiée, et une technique plus convenable pour les microgénérateurs est proposée. La deuxième approche est l'utilisation d'un multiplicateur de tension. Ce multiplicateur joue le rôle d'un AC/DC et DC/DC. Il accepte une tension d'entrée d'amplitude très faible (dizaines de millivolts). Le fonctionnement du multiplicateur à ces très basses tensions est basé sur une nouvelle structure de diode à très basse tension de seuil. La troisième approche est la proposition d'un convertisseur AC/DC ultra basse consommation (dizaines de nanowatt). Ce convertisseur peut rectifier des signaux d'amplitude de l'ordre de quelques millivolts. Les trois approches sont implémentées en utilisant deux technologies de fabrication de circuits intégrés.
Download or read book Renewable Energy for Smart and Sustainable Cities written by Mustapha Hatti and published by Springer. This book was released on 2018-11-23 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features cutting-edge research presented at the second international conference on Artificial Intelligence in Renewable Energetic Systems, IC-AIRES2018, held on 24–26 November 2018, at the High School of Commerce, ESC-Koléa in Tipaza, Algeria. Today, the fundamental challenge of integrating renewable energies into the design of smart cities is more relevant than ever. While based on the advent of big data and the use of information and communication technologies, smart cities must now respond to cross-cutting issues involving urban development, energy and environmental constraints; further, these cities must also explore how they can integrate more sustainable energies. Sustainable energies are a major determinant of smart cities’ longevity. From an environmental and technological standpoint, these energies offer an optimal power supply to the electric network while creating significantly less pollution. This requires flexibility, i.e., the availability of supply and demand. The end goal of any smart city is to improve the quality of life for all citizens (both in the city and in the countryside) in a way that is sustainable and respectful of the environment. This book encourages the reader to engage in the preservation of our environment, every moment, every day, so as to help build a clean and healthy future, and to think of the future generations who will one day inherit our planet. Further, it equips those whose work involves energy systems and those engaged in modelling artificial intelligence to combine their expertise for the benefit of the scientific community and humanity as a whole.
Download or read book Electrostatic Kinetic Energy Harvesting written by Philippe Basset and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harvesting kinetic energy is a good opportunity to power wireless sensor in a vibratory environment. Besides classical methods based on electromagnetic and piezoelectric mechanisms, electrostatic transduction has a great perspective in particular when dealing with small devices based on MEMS technology. This book describes in detail the principle of such capacitive Kinetic Energy Harvesters based on a spring-mass system. Specific points related to the design and operation of kinetic energy harvesters (KEHs) with a capacitive interface are presented in detail: advanced studies on their nonlinear features, typical conditioning circuits and practical MEMS fabrication.
Download or read book Electrets In Engineering written by Vladimir N. Kestelman and published by Springer Science & Business Media. This book was released on 2000-08-31 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently a new sphere in materials science· has formed which subject is structure and properties of electret materials used in engineering, medicine, biotechnology and other branches. It is characterized by specific methods of experimental investigations based on recording charge transfer, polarization and depolarization of dielectrics and involves original techniques and physico-mathematical aids where notions that exist at the interface of several natural and technical sciences are concentrated. It embraces a vast area of applications mainly in engineering, instrument making, electronics, medical technique, biotechnology, and etc., has a specialized technological base for electric polarization of dielectrics composed of uncommon technological methods, equipment and instrumentation. Apparently, future fundamental investigations in the domain of electret materials science are to be developed at the interface of computer of dielectrics. Elaboration of a simulation, physics and physical chemistry model for electric polarization of solid media with uneven charge density distribution, complicated by surface phenomena, outer electromagnetic, heat, chemical and other effects, presents a grave methodological problem. The simulation of structures in which polarization follows diffusion mechanism of chemically active molecules or their fragments, and the development of calculation methods for polarized charge relaxation and regularities of dielectric nonlinear properties, are the most urgent objectives of current research. Success in bioelectret effect studies is anticipated to result in profound widening of natural science knowledge.
Download or read book Le Nouvel automatisme written by and published by . This book was released on 1982 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book StarBriefs 2001 written by André Heck and published by Springer. This book was released on 2000-11-01 with total page 813 pages. Available in PDF, EPUB and Kindle. Book excerpt: When working in the highly technical fields of astronomy and the related space sciences, the practitioner is constantly confronted with a baffling array of different abbreviations, acronyms, contractions, and symbols. The identification and differentiation of these terms is a task which, all too often, can prove to be a near impossible one. With over 140,000 separate dictionary-style entries, and over 20 years in collation, StarBriefs 2001 represents the most comprehensive and accurately validated collection of abbreviations, acronyms, contractions, and symbols within astronomy, related space sciences and other related fields. As such, this invaluable reference source (and its companion volume, StarGuides 2001 should be on the reference shelf of every library, organisation or individual with any interest in these areas. Besides astronomy and space sciences, related fields such as aeronautics, aeronomy, astronautics, atmospheric sciences, chemistry, communications, computer sciences, data processing, education, electronics, engineering, energetics, environmental, geodesy, geophysics, information handling, management, mathematics, meteorology, optics, physics, remote sensing, and so on, are also covered when justified. In addition, there are separate sections devoted to Greek letters, mathematical symbols, special signs and characters, as well as to entries with a numerical prefix. Finally, terms in common use and/or of general interest have also been included where appropriate.
Download or read book Handbook of Research on Teaching written by Virginia Richardson and published by Amer Educational Research Assn. This book was released on 2001-01-01 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encounters with Lenin written by Nikolay Valentinov and published by . This book was released on 1968 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decisions of the Commissioner of Patents written by and published by . This book was released on 1871 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Engineers and the Price System written by Thorstein Veblen and published by Viking Adult. This book was released on 1921 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distributed Intelligence In Design written by Tuba Kocatürk and published by John Wiley & Sons. This book was released on 2011-01-14 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains the papers developed from the presentations at the Distributed Intelligence in Design Symposium, held in Salford in May 2009. In this context, Distributed Intelligence refers to the interdisciplinary knowledge of a range of different individuals in different organisations, with different backgrounds and experience, and the symposium discussed the media, technologies and behaviours required to support their successful collaboration. The book focusses on: how parametric and generative design media can be coupled with and managed alongside Building Information Modelling tools and systems how the cross-disciplinary knowledge is distributed and coordinated across different software, participants and organizations the characteristics of the evolving creative and collaborative practices how built environment education should be adapted to this digitally-networked practice and highly distributed intelligence in design The chapters address a range of innovative developments, methodologies, applications, research work and theoretical arguments, to present current experience and expectations as collaborative practice becomes critical in the design of future built environments.
Download or read book Handbook of Adult and Continuing Education written by Carol E. Kasworm and published by SAGE Publications. This book was released on 2010-05-27 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative overview of the current state of the field of adult and continuing education Drawing on the contributions of 75 leading authors in the field, this 2010 Edition of the respected Handbook of Adult and Continuing Education provides adult education scholars, program administrators, and teachers with a solid foundation for understanding the current guiding beliefs, practices, and tensions faced in the field, as well as a basis for developing and refining their own approaches to their work and scholarship. Offering expanded discussions in the areas of social justice, technology, and the global dimensions of adult and continuing education, the Handbook continues the tradition of previous volumes with discussions of contemporary theories, current forms and contexts of practice, and core processes and functions. Insightful chapters examine adult and continuing education as it relates to gender and sexuality, race, our aging society, class and place, and disability. Key Features Expanded coverage of social justice, the impact of technology, and the global dimensions of adult and continuing education provides a useful update on theories and practices in the field as they have evolved during the last decade. An invaluable introductory overview and synthesis of key aspects of the field of practice and scholarship acquaints new readers to the field The centrality of social justice in adult and continuing education is addressed in a new section. The broader global context of contemporary adult and continuing education is covered in a final section.
Download or read book Adult Education at the Crossroads written by Matthias Finger and published by Zed Books. This book was released on 2001 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adopting a social action perspective, this book is an assessment of where adult education now stands in the world. It argues that the purposes and rationale of adult education need to be reconceptualised for it to become an effective agent of change.
Download or read book EcoJustice Education written by Rebecca A. Martusewicz and published by Routledge. This book was released on 2014-08-21 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: EcoJustice Education offers a powerful model for cultural ecological analysis and a pedagogy of responsibility, providing teachers and teacher educators with the information and classroom practices they need to help develop citizens who are prepared to support and achieve diverse, democratic, and sustainable societies in an increasingly globalized world. Readers are asked to consider curricular strategies to bring these issues to life in their own classrooms across disciplines. Designed for introductory educational foundations and multicultural education courses, the text is written in a narrative, conversational style grounded in place and experience, but also pushes students to examine the larger ideological, social, historical, and political contexts of the crises humans and the planet we inhabit are facing. Pedagogical features in each chapter include a Conceptual Toolbox, activities accompanying the theoretical content, examples of lessons and teacher reflections, and suggested readings, films, and links. The Second Edition features a new chapter on Anthropocentrism; new material on Heterosexism; updated statistics and examples throughout; new and updated Companion Website content.
Download or read book Education and Climate Change written by Fumiyo Kagawa and published by Routledge. This book was released on 2010-04-15 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is widespread consensus in the international scientific community that climate change is happening and that abrupt and irreversible impacts are already set in motion. What part does education have to play in helping alleviate rampant climate change and in mitigating its worst effects? In this volume, contributors review and reflect upon social learning from and within their fields of educational expertise in response to the concerns over climate change. They address the contributions the field is currently making to help preempt and mitigate the environmental and social impacts of climate change, as well as how it will continue to respond to the ever changing climate situation. With a special foreword by Desmond Tutu, Archbishop Emeritus of Cape Town.
Download or read book Acupuncture in Practice written by Hugh MacPherson (Ph. D.) and published by . This book was released on 1997 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by THE leading lights in the field of integrating acupuncture into a Western medical system, this book bridges the gap between the theoretical foundations of acupuncture and its application in a modern Western clinical context. Each case history focuses on the complexities and dilemmas of treatment that are tackled, providing valuable insights by experienced practitioners into the management of a course of acupuncture treatment.
Download or read book Reinventing the Skyscraper written by Ken Yeang and published by Academy Press. This book was released on 2002-12-03 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underlying Yeang's projects is a programme of research that focuses on the design of the skyscraper, a design that derives from the recognized importance that climate has on finding energy-efficient resources.
