Download or read book Innovative Computational Paradigms for Invisible Radio Frequency Devices written by Rajendra Mitharwal and published by . This book was released on 2015 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le travail présenté dans cette thèse propose de nouvelles techniques computationnelles spécifiquement conçus pour la conception des capes d'invisibilité d'effectuer ou de corps diélectriques à fréquence radio. Le travail commencé avec le développement d'un solveur rapide parallèle basé sur le hybride volume-surface équation intégrale. Le solveur rapide a été amélioré avec de multiples fonctionnalités état de l'art dont la méthode sans kernel pour la compression de la matrice du système, la décomposition hiérarchique de la matrice du système, un octree adaptative et l'algorithme ACA raffiné avec SVD. Contributions scientifiques nouveaux de ce projet répartis entre quatre thèmes tous liés à l'invisibilité cloaking. Ces apports sont les suivants: (i)~développement d'une nouvelle technique de régularisation de la répartition spectrale d'une maille, qui se appuie sur préconditionnement du graphe associé Laplacien, (ii)~algorithme d'optimisation hiérarchiquement préconditionné pour la réduction du champ dispersé en raison d'une invisible capes qui couvre un objet conducteur, (iii)~nouvelles stratégies \cald de régularisation des techniques de source inverse et (iv)~une nouvelle méthodologie de conception de capes d'invisibilité effet de levier sur la diffusion inverse en fonction du volume équation intégrale. Développements théoriques sont corroborées par les résultats numériques et les applications qui montrent l'impact pratique des techniques nouvellement développées.
Download or read book Untangling Smart Cities written by Luca Mora and published by Elsevier. This book was released on 2019-06-27 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Untangling Smart Cities: From Utopian Dreams to Innovation Systems for a Technology-Enabled Urban Sustainability helps all key stakeholders understand the complex and often conflicting nature of smart city research, offering valuable insights for designing and implementing strategies to improve the smart city decision-making processes. The book drives the reader to a better theoretical and practical comprehension of smart city development, beginning with a thorough and systematic analysis of the research literature published to date. It addition, it provides an in-depth understanding of the entire smart city knowledge domain, revealing a deeply rooted division in its cognitive-epistemological structure as identified by bibliometric insights. Users will find a book that fills the knowledge gap between theory and practice using case study research and empirical evidence drawn from cities considered leaders in innovative smart city practices. - Provides clarity on smart city concepts and strategies - Presents a systematic literature analysis on the state-of-the-art of smart cities' research using bibliometrics combined with practical applications - Offers a comprehensive and systematic analysis of smart cities research produced during its first three decades - Generates a strong connection between theory and practice by providing the scientific knowledge necessary to approach the complex nature of smart cities - Documents five main development pathways for smart cities development, serving the needs of city managers and policymakers with concrete advice and guidance
Download or read book Electronic Business Concepts Methodologies Tools and Applications written by Lee, In and published by IGI Global. This book was released on 2008-12-31 with total page 2838 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enhances libraries worldwide through top research compilations from over 250 international authors in the field of e-business.
Download or read book Mobile Cloud Computing written by Debashis De and published by CRC Press. This book was released on 2016-01-06 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Minimize Power Consumption and Enhance User ExperienceEssential for high-speed fifth-generation mobile networks, mobile cloud computing (MCC) integrates the power of cloud data centers with the portability of mobile computing devices. Mobile Cloud Computing: Architectures, Algorithms and Applications covers the latest technological and architectura
Download or read book Principles of Internet of Things IoT Ecosystem Insight Paradigm written by Sheng-Lung Peng and published by Springer Nature. This book was released on 2019-11-13 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the evolution of future-generation technologies through the Internet of things, bringing together all the related technologies on a single platform to offer valuable insights for undergraduate and postgraduate students, researchers, academics and industry practitioners. The book uses data, network engineering and intelligent decision- support system-by-design principles to design a reliable IoT-enabled ecosystem and to implement cyber-physical pervasive infrastructure solutions. It takes readers on a journey that begins with understanding the insight paradigm of IoT-enabled technologies and how it can be applied. It walks readers through engaging with real-time challenges and building a safe infrastructure for IoT-based, future-generation technologies. The book helps researchers and practitioners to understand the design architecture through IoT and the state of the art in IoT countermeasures. It also highlights the differences between heterogeneous platforms in IoT-enabled infrastructure and traditional ad hoc or infrastructural networks, and provides a comprehensive discussion on functional frameworks for IoT, object identification, IoT domain model, RFID technology, wearable sensors, WBAN, IoT semantics, knowledge extraction, and security and privacy issues in IoT-based ecosystems. Written by leading international experts, it explores IoT-enabled insight paradigms, which are utilized for the future benefit of humans. It also includes references to numerous works. Divided into stand-alone chapters, this highly readable book is intended for specialists, researchers, graduate students, designers, experts, and engineers involved in research on healthcare-related issues.
Download or read book The RF in RFID written by Daniel Dobkin and published by Newnes. This book was released on 2012-11-01 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains how UHF tags and readers communicate wirelessly. It gives an understanding of what limits the read range of a tag, how to increase it (and why that might result in breaking the law), and the practical things that need to be addressed when designing and implementing RFID technology. Avoiding heavy math but giving breadth of coverage with the right amount of detail, it is an ideal introduction to radio communications for engineers who need insight into how tags and readers work. New to this edition: • Examples of near-metal antenna techniques • Discussion of the wakeup challenge for battery-assisted tags, with a BAT architecture example • Latest development of protocols: EPC Gen 1.2.0 • Update 18000-6 discussion with battery-assisted tags, sensor tags, Manchester tags and wakeup provisions - Named a 2012 Notable Computer Book for Computer Systems Organization by Computing Reviews - The only book to give an understanding of radio communications, the underlying technology for radio frequency identification (RFID) - Praised for its readability and clarity, it balances breadth and depth of coverage - New edition includes latest developments in chip technology, antennas and protocols
Download or read book Cognitive Radio Mobile Communications and Wireless Networks written by Mubashir Husain Rehmani and published by Springer. This book was released on 2018-07-30 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the latest research and development of new technologies for cognitive radio, mobile communications, and wireless networks. The contributors discuss the research and requirement analysis and initial standardization work towards 5G cellular systems and the capacity problems it presents. They show how cognitive radio, with the capability to flexibly adapt its parameters, has been proposed as the enabling technology for unlicensed secondary users to dynamically access the licensed spectrum owned by legacy primary users on a negotiated or an opportunistic basis. They go on to show how cognitive radio is now perceived in a much broader paradigm that will contribute to solve the resource allocation problem that 5G requirements raise. The chapters represent hand-selected expanded papers from EAI sponsored and hosted conferences such as the 12th EAI International Conference on Mobile and Ubiquitous Systems, the 11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, the 10th International Conference on Cognitive Radio Oriented Wireless Networks, the 8th International Conference on Mobile Multimedia Communications, and the EAI International Conference on Software Defined Wireless Networks and Cognitive Technologies for IoT.
Download or read book Popular Science written by and published by . This book was released on 2003-12 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Download or read book Photonic Reservoir Computing written by Daniel Brunner and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-07-08 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonics has long been considered an attractive substrate for next generation implementations of machine-learning concepts. Reservoir Computing tremendously facilitated the realization of recurrent neural networks in analogue hardware. This concept exploits the properties of complex nonlinear dynamical systems, giving rise to photonic reservoirs implemented by semiconductor lasers, telecommunication modulators and integrated photonic chips.
Download or read book Advanced Methodologies and Technologies in Network Architecture Mobile Computing and Data Analytics written by Khosrow-Pour, D.B.A., Mehdi and published by IGI Global. This book was released on 2018-10-19 with total page 1946 pages. Available in PDF, EPUB and Kindle. Book excerpt: From cloud computing to data analytics, society stores vast supplies of information through wireless networks and mobile computing. As organizations are becoming increasingly more wireless, ensuring the security and seamless function of electronic gadgets while creating a strong network is imperative. Advanced Methodologies and Technologies in Network Architecture, Mobile Computing, and Data Analytics highlights the challenges associated with creating a strong network architecture in a perpetually online society. Readers will learn various methods in building a seamless mobile computing option and the most effective means of analyzing big data. This book is an important resource for information technology professionals, software developers, data analysts, graduate-level students, researchers, computer engineers, and IT specialists seeking modern information on emerging methods in data mining, information technology, and wireless networks.
Download or read book E Commerce and the Digital Economy written by Michael J. Shaw and published by Routledge. This book was released on 2015-05-15 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume in the "Advances in Management Information Systems" series offers a state-of-the-art survey of information systems research on electronic commerce. Featuring chapters by leading scholars and industry professionals, it provides the framework for understanding the business trends, emerging opportunities, and barriers to overcome in the rapid developments taking place in electronic business and the digital economy. Researchers, students, and practitioners - anyone interested in the current issues and future direction of electronic commerce, especially from the standpoint of information systems and information technology - will find this book to be an authoritative source of cutting-edge information. The volume is divided into four parts: Part I covers the fundamental issues of information technology standards and the transformation of industry structure; Part II focuses on B2B commerce; Part III investigates the management of mobile and IT infrastructure; and Part IV includes trust, security, and legal issues that undergird the success of e-commerce initiatives.
Download or read book Commerce Business Daily written by and published by . This book was released on 1999-03 with total page 2040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Modern RF Photonics written by Preetpaul Singh Devgan and published by Artech House. This book was released on 2018-01-31 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique new resource presents applications of modern RF photonic systems that use RF photonic components for commonly used signal processing systems. This book provides insight into how a variety of systems work together, including RF down conversion, analog to digital conversion, RF oscillators, and frequency identification. A comparison of analog versus digital systems is presented. Readers find in-depth coverage of analog delay lines using RF photonics, various system architectures, and details about RF photonic component performance. Signal processing utilizing RF photonics and the need for down conversion is discussed. The many advancements in analog delay line performance are explained, including those in photodetector, optical fibers, and optical and amplifier modulators. The book highlights the advantages of using oscillators utilizing RF photonics and explores the elements of phase noise, timing jitter, and optoelectronic oscillators. The benefits of signal identification, isolation, and separation of RF photonics are identified. Professionals are brought up to speed on RF frequency identification using optical injection locking. The book provides discussions on the fundamentals and advancements in integrated RF photonics and explains how to design an RF photonic downconverter. It covers additional applications of integrated photonic circuits and gives an explanation of why to use different modulation formats for different applications.
Download or read book More Than Screen Deep written by National Research Council and published by National Academies Press. This book was released on 1997-10-12 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The national information infrastructure (NII) holds the promise of connecting people of all ages and descriptionsâ€"bringing them opportunities to interact with businesses, government agencies, entertainment sources, and social networks. Whether the NII fulfills this promise for everyone depends largely on interfacesâ€"technologies by which people communicate with the computing systems of the NII. More Than Screen Deep addresses how to ensure NII access for every citizen, regardless of age, physical ability, race/ethnicity, education, ability, cognitive style, or economic level. This thoughtful document explores current issues and prioritizes research directions in creating interface technologies that accommodate every citizen's needs. The committee provides an overview of NII users, tasks, and environments and identifies the desired characteristics in every-citizen interfaces, from power and efficiency to an element of fun. The book explores: Technological advances that allow a person to communicate with a computer system. Methods for designing, evaluating, and improving interfaces to increase their ultimate utility to all people. Theories of communication and collaboration as they affect person-computer interactions and person-person interactions through the NII. Development of agents: intelligent computer systems that "understand" the user's needs and find the solutions. Offering data, examples, and expert commentary, More Than Screen Deep charts a path toward enabling the broadest-possible spectrum of citizens to interact easily and effectively with the NII. This volume will be important to policymakers, information system designers and engineers, human factors professionals, and advocates for special populations.
Download or read book Encyclopedia of Information Science and Technology written by Mehdi Khosrow-Pour and published by IGI Global Snippet. This book was released on 2009 with total page 4292 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This set of books represents a detailed compendium of authoritative, research-based entries that define the contemporary state of knowledge on technology"--Provided by publisher.
Download or read book Automatic Modulation Classification written by Zhechen Zhu and published by John Wiley & Sons. This book was released on 2015-02-16 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Automatic Modulation Classification (AMC) has been a key technology in many military, security, and civilian telecommunication applications for decades. In military and security applications, modulation often serves as another level of encryption; in modern civilian applications, multiple modulation types can be employed by a signal transmitter to control the data rate and link reliability. This book offers comprehensive documentation of AMC models, algorithms and implementations for successful modulation recognition. It provides an invaluable theoretical and numerical comparison of AMC algorithms, as well as guidance on state-of-the-art classification designs with specific military and civilian applications in mind. Key Features: Provides an important collection of AMC algorithms in five major categories, from likelihood-based classifiers and distribution-test-based classifiers to feature-based classifiers, machine learning assisted classifiers and blind modulation classifiers Lists detailed implementation for each algorithm based on a unified theoretical background and a comprehensive theoretical and numerical performance comparison Gives clear guidance for the design of specific automatic modulation classifiers for different practical applications in both civilian and military communication systems Includes a MATLAB toolbox on a companion website offering the implementation of a selection of methods discussed in the book
Download or read book Ubiquitous Computing Fundamentals written by John Krumm and published by CRC Press. This book was released on 2018-10-08 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: "...a must-read text that provides a historical lens to see how ubicomp has matured into a multidisciplinary endeavor. It will be an essential reference to researchers and those who want to learn more about this evolving field." -From the Foreword, Professor Gregory D. Abowd, Georgia Institute of Technology First introduced two decades ago, the term ubiquitous computing is now part of the common vernacular. Ubicomp, as it is commonly called, has grown not just quickly but broadly so as to encompass a wealth of concepts and technology that serves any number of purposes across all of human endeavor. While such growth is positive, the newest generation of ubicomp practitioners and researchers, isolated to specific tasks, are in danger of losing their sense of history and the broader perspective that has been so essential to the field’s creativity and brilliance. Under the guidance of John Krumm, an original ubicomp pioneer, Ubiquitous Computing Fundamentals brings together eleven ubiquitous computing trailblazers who each report on his or her area of expertise. Starting with a historical introduction, the book moves on to summarize a number of self-contained topics. Taking a decidedly human perspective, the book includes discussion on how to observe people in their natural environments and evaluate the critical points where ubiquitous computing technologies can improve their lives. Among a range of topics this book examines: How to build an infrastructure that supports ubiquitous computing applications Privacy protection in systems that connect personal devices and personal information Moving from the graphical to the ubiquitous computing user interface Techniques that are revolutionizing the way we determine a person’s location and understand other sensor measurements While we needn’t become expert in every sub-discipline of ubicomp, it is necessary that we appreciate all the perspectives that make up the field and understand how our work can influence and be influenced by those perspectives. This is important, if we are to encourage future generations to be as successfully innovative as the field’s originators.
