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Author: Rajendra Mitharwal
Publisher:
ISBN:
Category :
Languages : fr
Pages : 166
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Book Description
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.
Author: Rajendra Mitharwal
Publisher:
ISBN:
Category :
Languages : fr
Pages : 166
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Book Description
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.
Author: Luca Mora
Publisher: Elsevier
ISBN: 0128154780
Category : Computers
Languages : en
Pages : 418
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Book Description
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
Author: Lee, In
Publisher: IGI Global
ISBN: 1605660574
Category : Computers
Languages : en
Pages : 2838
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Book Description
Enhances libraries worldwide through top research compilations from over 250 international authors in the field of e-business.
Author: Debashis De
Publisher: CRC Press
ISBN: 1482242842
Category : Computers
Languages : en
Pages : 368
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Book Description
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
Author: Sheng-Lung Peng
Publisher: Springer Nature
ISBN: 3030335968
Category : Technology & Engineering
Languages : en
Pages : 626
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Book Description
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.
Author: Khosrow-Pour, D.B.A., Mehdi
Publisher: IGI Global
ISBN: 1522575995
Category : Computers
Languages : en
Pages : 1946
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Book Description
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.
Author: Mubashir Husain Rehmani
Publisher: Springer
ISBN: 3319910027
Category : Technology & Engineering
Languages : en
Pages : 292
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Book Description
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.
Author: Daniel Dobkin
Publisher: Newnes
ISBN: 0123948304
Category : Technology & Engineering
Languages : en
Pages : 540
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Book Description
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
Author: Daniel Brunner
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110582112
Category : Science
Languages : en
Pages : 365
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Book Description
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.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 190
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Book Description
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.
