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Author: Junwei Gu
Publisher: John Wiley & Sons
ISBN: 3527350993
Category : Technology & Engineering
Languages : en
Pages : 309
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Book Description
Polymer Matrix Wave-Transparent Composites One-stop reference on important recent research accomplishments in the field of polymer matrix wave-transparent composites Polymer Matrix Wave-Transparent Composites: Materials, Properties, and Applications is a unique book that focuses on polymer matrix wave-transparent composites for electromagnetic wave transmission of a certain frequency, discussing various aspects of design, fabrication, structure, properties, measurement methods, and mechanisms, along with practical applications of functional polymer composites in industrial fields ranging from aircraft radomes, to radomes for ground, shipborne, and airborne purposes, to radomes for 5G communication, to printed circuit boards and beyond. Edited by four highly qualified academics and contributed to by well-known experts in the field, Polymer Matrix Wave-Transparent Composites includes detailed discussion on sample topics such as: Interface between the reinforced fiber and polymer matrix, including basic concepts, characterization, and the most common method of functionalization for the interface Mechanism of wave-transparent, factors that influence wave-transparent performance, and fabrication techniques Processes of hand paste molding, pressure bag molding, laminated molding, resin transfer molding (RTM), and winding molding Physical and chemical properties of the inorganic fibers (glass fibers and quartz fibers) and organic fibers (aramid fibers, ultra-high molecular weight polyethylene fibers and poly-p-phenylene benzobisoxazole fibers) Polymer Matrix Wave-Transparent Composites is an essential reference on the latest research in the field for researchers and related professionals, as well as for individuals who are not familiar with the field and wish to gain a holistic understanding in one place.
Author: Junwei Gu
Publisher: John Wiley & Sons
ISBN: 3527350993
Category : Technology & Engineering
Languages : en
Pages : 309
Get Book
Book Description
Polymer Matrix Wave-Transparent Composites One-stop reference on important recent research accomplishments in the field of polymer matrix wave-transparent composites Polymer Matrix Wave-Transparent Composites: Materials, Properties, and Applications is a unique book that focuses on polymer matrix wave-transparent composites for electromagnetic wave transmission of a certain frequency, discussing various aspects of design, fabrication, structure, properties, measurement methods, and mechanisms, along with practical applications of functional polymer composites in industrial fields ranging from aircraft radomes, to radomes for ground, shipborne, and airborne purposes, to radomes for 5G communication, to printed circuit boards and beyond. Edited by four highly qualified academics and contributed to by well-known experts in the field, Polymer Matrix Wave-Transparent Composites includes detailed discussion on sample topics such as: Interface between the reinforced fiber and polymer matrix, including basic concepts, characterization, and the most common method of functionalization for the interface Mechanism of wave-transparent, factors that influence wave-transparent performance, and fabrication techniques Processes of hand paste molding, pressure bag molding, laminated molding, resin transfer molding (RTM), and winding molding Physical and chemical properties of the inorganic fibers (glass fibers and quartz fibers) and organic fibers (aramid fibers, ultra-high molecular weight polyethylene fibers and poly-p-phenylene benzobisoxazole fibers) Polymer Matrix Wave-Transparent Composites is an essential reference on the latest research in the field for researchers and related professionals, as well as for individuals who are not familiar with the field and wish to gain a holistic understanding in one place.
Author: Paul A. Pagnato
Publisher: Transparency Press
ISBN: 9781936961450
Category :
Languages : en
Pages : 360
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Book Description
Author: Wei Lu
Publisher: CRC Press
ISBN: 1040050689
Category : Technology & Engineering
Languages : en
Pages : 325
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Book Description
This book reveals the latest research findings and innovations in electromagnetic wave absorption and shielding by exploring the design and application of absorbent materials, the optimization of shielding structures and the improvement of testing and evaluation methods. From conductive materials to magnetic materials, and composite materials to nanomaterials, Electromagnetic Wave Absorption and Shielding Materials details the characteristics and advantages of various absorbent materials and explains their applications in electromagnetic wave absorption and shielding. It then introduces the different methods of electromagnetic shielding, including structural shielding and material shielding. The book also studies experimental and testing techniques, including measurement methods and evaluation criteria for electromagnetic wave absorption performance. The book will be of interest to researchers and graduate students in electromagnetic compatibility, materials science and engineering.
Author: Eric Lheurette
Publisher: John Wiley & Sons
ISBN: 1848215185
Category : Science
Languages : en
Pages : 240
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Book Description
Since the concept was first proposed at the end of the 20th Century, metamaterials have been the subject of much research and discussion throughout the wave community. More than 10 years later, the number of related published articles is increasing significantly. On the one hand, this success can be attributed to dreams of new physical objects which are the consequences of the singular properties of metamaterials. Among them, we can consider the examples of perfect lensing and invisibility cloaking. On other hand, metamaterials also provide new tools for the design of well-known wave functions such as antennas for electromagnetic waves. The goal of this book is to propose an overview of the concept of metamaterials as a perspective on a new practical tool for wave study and engineering. This includes both the electromagnetic spectrum, from microwave to optics, and the field of acoustic waves. Contents 1. Overview of Microwave and Optical Metamaterial Technologies, Didier Lippens. 2. MetaLines: Transmission Line Approach for the Design of Metamaterial Devices, Bruno Sauviac. 3. Metamaterials for Non-Radiative Microwave Functions and Antennas, Divitha Seetharamdoo and Bruno Sauviac. 4. Toward New Prospects for Electromagnetic Compatibility, Divitha Seetharamdoo. 5. Dissipative Loss in Resonant Metamaterials, Philippe Tassin, Thomas Koschny, and Costas M. Soukoulis. 6. Transformation Optics and Antennas, André de Lustrac, Shah Nawaz Burokur and Paul-Henri Tichit. 7. Metamaterials for Control of Surface Electromagnetic and Liquid Waves, Sébastien Guenneau, Mohamed Farhat, Muamer Kadic, Stefan Enoch and Romain Quidant. 8. Classical Analog of Electromagnetically Induced Transparency, Philippe Tassin, Thomas Koschny and Costas M. Soukoulis.
Author: Deborah Ascher Barnstone
Publisher: Routledge
ISBN: 1135996466
Category : Architecture
Languages : en
Pages : 304
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Book Description
Examining the transformation of transparency as a metaphor in West German political thought to an analogy for democratic architecture, this bookquestions the prevailing assumption in German architectural circles that transparency in governmental buildings can be equated with openness, accessibility and greater democracy. The Transparent State traces the development of transparency in German political and architectural culture, tying this lineage to the relationship between culture and national identity, a connection that began before unification of the German state in the eighteenth century and continues today. The Weimar Republic and Third Reich periods are examined although the focus is on the postwar period, looking at the use of transparency in the three projects for a national parliament - the 1949 Bundestag project by Hans Schwippert, the 1992 Bundestag building by Gunter Behnisch and the 1999 Reichstag renovation by Norman Foster. Transparency is an important issue in contemporary architectural practice; this book will appeal to both the practising architect and the architectural historian.
Author: Shiban Kishen Koul
Publisher: CRC Press
ISBN: 1000223663
Category : Computers
Languages : en
Pages : 310
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Book Description
This book discusses antenna designs for handheld devices as well as base stations. The book serves as a reference and a handy guide for graduate students and PhD students involved in the field of millimeter wave antenna design. It also gives insights to designers and practicing engineers who are actively engaged in design of antennas for future 5G devices. It offers an in-depth study, performance analysis and extensive characterization of novel antennas for 5G applications. The reader will learn about basic design methodology and techniques to develop antennas for 5G applications including concepts of path loss compensation, co-design of commercial 4G antennas with millimeter wave 5G antennas and antennas used in phase array and pattern diversity modules. Practical examples included in the book will help readers to build high performance antennas for 5G subsystems/systems using low cost technology. Key Features Provides simple design methodology of different antennas for handheld devices as well as base stations for 5G applications. Concept of path loss compensation introduced. Co-design of commercial 4G antennas with millimetre wave 5G antennas presented. Comparison of phased array versus pattern diversity modules discussed in detail. Fabrication and Measurement challenges at mmWaves and Research Avenues in antenna designs for 5G and beyond presented. Shiban Kishen Koul is an emeritus professor at the Centre for Applied Research in Electronics at the Indian Institute of Technology Delhi. He served as the chairman of Astra Microwave Products Limited, Hyderabad from 2009-2018. He is a Life Fellow of the Institution of Electrical and Electronics Engineering (IEEE), USA, a Fellow of the Indian National Academy of Engineering (INAE), and a Fellow of the Institution of Electronics and Telecommunication Engineers (IETE). Karthikeya G S worked as an assistant professor in Visvesvaraya technological university from 2013 to 2016 and completed his PhD from the Centre for Applied Research in Electronics at the Indian Institute of Technology Delhi in Dec.2019. He is a member of IEEE-Antenna Propagation Society and Antenna Test and Measurement society.
Author: Ribin Balachandran
Publisher: Springer Nature
ISBN: 3031479343
Category : Technology & Engineering
Languages : en
Pages : 198
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Book Description
Robotic research and developments in computing technologies including artificial intelligence have led to significant improvements in autonomous capabilities of robots. Yet, human supervision is advisable and, in many cases, necessary when robots interact with real-world, outside-lab environments. This is due to the fact that complete autonomy in robots has not yet been achieved. When robots encounter challenges beyond their capabilities, a viable solution is to include human operators in the loop, who can support robots through teleoperation, taking complete control or shared control. This monograph focuses on a special form of shared control, namely mixed-initiative, where the final command to the robot is a weighted sum of the commands from the operator and the autonomous controller. The weights (fixed or adaptive), called authority allocation (AA) factors, decide who has more control authority over the robot. Several research groups use different methods to adapt the AA factors online and the benefits of adaptive mixed-initiative shared control have been well established in terms of task completion success and operator usability. However, stability of the overall shared control framework, with communication time-delays between the operator and the robot, is a field that has not been examined extensively. This monograph presents methods to improve performance and stability in shared control so that the possibilities of its applications can be widened. Firstly, methods to improve the haptic feedback performance of teleoperation are developed. Secondly, methods to stabilize adaptive shared control systems, while still ensuring high teleoperation performance, are proposed. The methods are validated on multiple robotic systems and they were applied in several projects, both in space and terrestrial domains. With the aforementioned contributions, this monograph provides an overarching framework to improve synergy between humans and robots. The flexibility of the framework allows integration of existent teleoperation and shared control approaches, which further promotes synergy within the robotics community.
Author: William Thomson, Baron Kelvin
Publisher: Cambridge University Press
ISBN: 1108007678
Category : Religion
Languages : en
Pages : 734
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Book Description
Lectures describing the problems in explaining light propagation which inspired Einstein's theory of special relativity.
Author: Dorota Mokrosinska
Publisher: Routledge
ISBN: 0429652070
Category : Political Science
Languages : en
Pages : 216
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Book Description
This edited volume offers a critical discussion of the trade-offs between transparency and secrecy in the actual political practice of democratic states in Europe. As such, it answers to a growing need to systematically analyse the problem of secrecy in governance in this political and geographical context. Focusing on topical cases and controversies in particular areas, the contributors reflect on the justification and limits of the use of secrecy in democratic governance, register the social, cultural, and historical factors that inform this process and explore the criteria used by European legislators and policy-makers, both at the national and supranational level, when balancing interests on the sides of transparency and secrecy, respectively. This book will be of key interest to scholars and students of security studies, political science, European politics/studies, law, history, political philosophy, public administration, intelligence studies, media and communication studies, and information technology sciences.
Author: Leona Chandra Kruse
Publisher: Springer Nature
ISBN: 3030824055
Category : Computers
Languages : en
Pages : 408
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Book Description
This book constitutes the thoroughly refereed proceedings of the 16th International Conference on Design Science Research in Information Systems and Technology, DESRIST 2021, held in Kristiansand, Norway, in August 2021.* The 24 revised full research papers, included in the volume together with 6 short contributions and 7 prototype papers, were carefully reviewed and selected from 78 submissions. They are organized in the following topical sections: impactful sociotechnical design; problem and contribution articulation; design knowledge for reuse; emerging methods and frameworks for DSR; DSR and governance; the new boundaries of DSR. *Apart from the planned on-site event, the hybrid conference model was explored due to the Covid-19 pandemic.
