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Showing 51,176 through 51,200 of 64,267 results

Resistance Spot Welding: Fundamentals and Applications for the Automotive Industry (Synthesis Lectures on Welding Engineering)

by Menachem Kimchi David H. Phillips

The book begins with thorough coverage of Resistance Spot Welding fundamentals and principles, including concepts such as Lobe Curves, contact resistance vs. electrode force, dynamic resistance, heat balance challenges, nugget growth, machine types and power supplies, and electrodes. Subsequent chapters address challenges and approaches to important topics of welding advanced high-strength steels, such as DP, TRIP, TWIP, and Press Hardening Steel, as well as aluminum alloys. Welding issues associated with the various coatings used on these steels are addressed. The final chapters are dedicated to weld quality, monitoring, testing, computational modeling, and common automotive production issues such as the welding of multiple sheet stack-ups and a brief overview of associated codes and standards. The second edition includes updated chapters and additional information, such as expanded information on welding aluminum to steel, a new section on alternative welding and joining methods, and updates on monitoring and control as well as welding issues associated with the latest advanced high-strength steels.

Resistance to the Current: The Dialectics of Hacking (Information Policy)

by Johan Soderberg Maxigas

How hacking cultures drive contemporary capitalism and the future of innovation.In Resistance to the Current, Johan Söderberg and Maxigas examine four historical case studies of hacker movements and their roles in shaping the twenty-first-century&’s network society. Based on decades of field work and analysis, this intervention into current debates situates an exploding variety of hacking practices within the contradictions of capitalism. Depoliticized accounts of computing cultures and collaborative production miss their core driver, write Söderberg and Maxigas: the articulation of critique and its recuperation into innovations.Drawing on accounts of building, developing, and running community wireless networks, 3D printers, hackerspaces, and chat protocols, the authors develop a theoretical framework of critique and recuperation to examine how hackers—who have long held a reputation for being underground rebels—transform their outputs from communal, underground experiments to commercial products that benefit the state and capital. This framework allows a dialectical understanding of contemporary social conflicts around technology and innovation. Hackers&’ critiques of contemporary norms spur innovation, while recuperation turns these innovations into commodified products and services. Recuperation threatens the autonomy of hacker collectives, harnessing their outputs for the benefit of a capitalist system.With significant practical implications, this sophisticated multidisciplinary account of technology-oriented movements that seek to challenge capitalism will appeal to science and technology readers interested in innovation studies, user studies, cultural studies, and media and communications.

Resistance Training Methods: From Theory to Practice (Lecture Notes in Bioengineering)

by Alejandro Muñoz-López Redha Taiar Borja Sañudo

This book reviews the main principles of resistance training, from basics to modern insights. It includes practical ways to develop most of the strength training methods, including monitoring and testing procedures. It merges practical tips with knowledge about the scientific background concerning program and periodization. It describes procedures for special populations, such as elderly or women.Gathering contributions by authoritative researchers and professors in the fields of sport science and biomechanics, this book provides an integrated view of strength training programming, and describes the most important biological factors associated with this type of training. The evidence-based and detailed description of each single mechanism to be trained to enhance performance is covered in depth. Thanks to its strong academic background, an being self-contained, this book offers a valuable reference guide for advanced undergraduate and graduate students in sports science, as well as an inspiring guide for sport and health researchers and professional trainers alike.

Resistant Starch: Sources, Applications and Health Benefits (Institute of Food Technologists Series #75)

by Daniel Granato Gastón Ares

The discovery of resistant starch is considered one of the major developments in our understanding of the importance of carbohydrates for health in the past twenty years. Resistant starch, which is resistant to digestion and absorption in the human small intestine with complete or partial fermentation in the large intestine, is naturally present in foods. Resistant Starch: Sources, Applications and Health Benefits covers the intrinsic and extrinsic sources of resistant starch in foods, and compares different methods of measuring resistant starch and their strengths and limitations. Applications in different food categories are fully covered, with descriptions of how resistant starch performs in bakery, dairy, snack, breakfast cereals, pasta, noodles, confectionery, meat, processed food and beverage products.

Resistencia: Un año en el espacio

by Scott Kelly

Antes de conquistar Marte, debemos aprender a sobrevivir en el espacio. Un libro ejemplar sobre el triunfo de la imaginación humana, la fuerza de voluntad y las maravillas infinitas de la galaxia. Scott Kelly es el hombre que más tiempo ha pasado en el espacio, 340 días, durante los cuales ha visto y vivido cosas que prácticamente ninguno de nosotros veremos o experimentaremos nunca. A través de su increíble historia, Kelly nos revela un entorno absolutamente hostil al ser humano y cuáles fueron los retos más extremos que tuvo que afrontar: los devastadores efectos corporales, la tristeza y la soledad que conlleva estar separado de los seres queridos, el total y absoluto aislamiento de todas las comodidades terrestres, los catastróficos riesgos de chocar contra basura espacial y, aún peor, la amenaza angustiante de ser incapaz de ayudar si algo malo ocurre en casa. En Resistencia la humanidad, la compasión, el sentido del humor, el entusiasmo y la determinación de este héroe moderno resuenan en cada una de sus palabras. Su mensaje es una fuente de inspiración para generaciones futuras y su relato personal cautiva desde la primera página.

Resisting Global Toxics: Transnational Movements for Environmental Justice

by David Naguib Pellow

Every year, nations and corporations in the "global North" produce millions of tons of toxic waste. Too often this hazardous material--linked to high rates of illness and death and widespread ecosystem damage--is exported to poor communities of color around the world. In Resisting Global Toxics,David Naguib Pellow examines this practice and charts the emergence of transnational environmental justice movements to challenge and reverse it. Pellow argues that waste dumping across national boundaries from rich to poor communities is a form of transnational environmental inequality that reflects North/South divisions in a globalized world, and that it must be theorized in the context of race, class, nation, and environment. Building on environmental justice studies, environmental sociology, social movement theory, and race theory, and drawing on his own research, interviews, and participant observations, Pellow investigates the phenomenon of global environmental inequality and considers the work of activists, organizations, and networks resisting it. He traces the transnational waste trade from its beginnings in the 1980s to the present day, examining global garbage dumping, the toxic pesticides that are the legacy of the Green Revolution in agriculture, and today's scourge of dumping and remanufacturing high tech and electronics products. The rise of the transnational environmental movements described in Resisting Global Toxicscharts a pragmatic path toward environmental justice, human rights, and sustainability.

Resistive Switching

by Daniele Ielmini Rainer Waser

With its comprehensive coverage, this reference introduces readers to the wide topic of resistance switching, providing the knowledge, tools, and methods needed to understand, characterize and apply resistive switching memories. Starting with those materials that display resistive switching behavior, the book explains the basics of resistive switching as well as switching mechanisms and models. An in-depth discussion of memory reliability is followed by chapters on memory cell structures and architectures, while a section on logic gates rounds off the text. An invaluable self-contained book for materials scientists, electrical engineers and physicists dealing with memory research and development.

Resistive Switching: Oxide Materials, Mechanisms, Devices and Operations (Electronic Materials: Science & Technology)

by Jennifer Rupp Daniele Ielmini Ilia Valov

This book provides a broad examination of redox-based resistive switching memories (ReRAM), a promising technology for novel types of nanoelectronic devices, according to the International Technology Roadmap for Semiconductors, and the materials and physical processes used in these ionic transport-based switching devices. It covers defect kinetic models for switching, ReRAM deposition/fabrication methods, tuning thin film microstructures, and material/device characterization and modeling. A slate of world-renowned authors address the influence of type of ionic carriers, their mobility, the role of the local and chemical composition and environment, and facilitate readers’ understanding of the effects of composition and structure at different length scales (e.g., crystalline vs amorphous phases, impact of extended defects such as dislocations and grain boundaries). ReRAMs show outstanding potential for scaling down to the atomic level, fast operation in the nanosecond range, low power consumption, and non-volatile storage. The book is ideal for materials scientists and engineers concerned with novel types of nanoelectronic devices such as memories, memristors, and switches for logic and neuromorphic computing circuits beyond the von Neumann concept.

Resistivity Recovery in Fe and FeCr alloys

by Begoña Gómez-Ferrer

This book covers the Resistivity Recovery (RR) technique, underlying its physical principles, performance and problematic. A concise review on the state of the art is provided, showing the advances in radiation modelling, linking both experimental and theoretical fields. The reader will find a data compilation and comparison of up-to-date results obtained from the European Fusion Development Agreement model alloys.

Resistor-based Temperature Sensors in CMOS Technology (Analog Circuits and Signal Processing)

by Sining Pan Kofi A.A. Makinwa

This book describes the background, principles, implementations, characterization, and future trends of temperature sensors made from silicon resistors in CMOS technology, including their readout circuits. Readers will benefit from the latest research of CMOS temperature sensors, and could learn about various precision analog techniques such as phase detection, continuous-time ΔΣ ADC, zoom ADC, FIR-DAC, dynamic element matching, OTA linearization, etc.

Resolving Water Conflicts Workbook (Social-Environmental Sustainability)

by Chris Maser Lynette De Silva

This book works to build trust, consensus, and capacity to enhance understanding through a water conflict management framework designed to bolster collaborative skills. Built on case-studies analysis and hands-on real-life applications, it addresses issues of water insecurity of marginalized systems and communities, global water viability, institutional resilience, and the inclusion of faith-based traditions for climate action. The authors assess the complexities of climate challenges and explain how to create sustainable, effective, and efficient water approaches for an improved ecological and socioeconomic future within the UN's Sustainable Development Goals.

Resonance Effects of Excitons and Electrons

by Dieter Suter Ion Geru

This book presents the various types of resonance effects on excitons, biexcitons and the local electronic centers (LEC) in solids, such as paramagnetic and paraelectric resonances on excitons, exciton acoustic resonance at intra- and interband transitions, radio-optical double resonance on excitons, hole-nuclear double resonance on localized biexcitons, ENDOR and acoustic ENDOR on LEC. The criteria for the generation of coherent photons, phonons and magnons by excitons are explained. The interactions of excitons and biexcitons with paramagnetic centers and nuclear spins, the indirect interaction between the PC through a field of excitons as well as the quasienergy spectrum of excitons and spin systems are discussed. It is proved that the interaction of paramagnetic centers with excitons increases the spin relaxation rate of paramagnetic centers in comparison with the case of their interaction with free carriers. The giant magneto-optical effects in semi-magnetic semiconductors are theoretically interpreted. In recent years, a new perspective has been added to these systems and their interactions: They can be used for storing and processing information in the form of quantum bits (qubits), the building blocks of quantum computers. The basics of this emerging technology are explained and examples of demonstration-type quantum computers based on localized spins in solids are discussed.

Resonant MEMS

by Gary K. Fedder Jan G. Korvink Osamu Tabata Fabien Josse Oliver Brand Isabelle Dufour Stephen Heinrich Christofer Hierold

Part of the AMN book series, this book covers the principles, modeling and implementation as well as applications of resonant MEMS from a unified viewpoint. It starts out with the fundamental equations and phenomena that govern the behavior of resonant MEMS and then gives a detailed overview of their implementation in capacitive, piezoelectric, thermal and organic devices, complemented by chapters addressing the packaging of the devices and their stability. The last part of the book is devoted to the cutting-edge applications of resonant MEMS such as inertial, chemical and biosensors, fluid properties sensors, timing devices and energy harvesting systems.

Resonant Power Converters

by Marian K. Kazimierczuk Dariusz Czarkowski

This book is devoted to resonant energy conversion in power electronics. It is a practical, systematic guide to the analysis and design of various dc-dc resonant inverters, high-frequency rectifiers, and dc-dc resonant converters that are building blocks of many of today's high-frequency energy processors. Designed to function as both a superior senior-to-graduate level textbook for electrical engineering courses and a valuable professional reference for practicing engineers, it provides students and engineers with a solid grasp of existing high-frequency technology, while acquainting them with a number of easy-to-use tools for the analysis and design of resonant power circuits. Resonant power conversion technology is now a very hot area and in the center of the renewable energy and energy harvesting technologies.

Resonant Scattering and Generation of Waves: Cubically Polarizable Layers (Mathematical Engineering Ser.)

by Lutz Angermann Vasyl V. Yatsyk

This monograph deals with theoretical aspects and numerical simulations of the interaction of electromagnetic fields with nonlinear materials. It focuses in particular on media with nonlinear polarization properties. It addresses the direct problem of nonlinear Electrodynamics, that is to understand the nonlinear behavior in the induced polarization and to analyze or even to control its impact on the propagation of electromagnetic fields in the matter. The book gives a comprehensive presentation of the results obtained by the authors during the last decade and put those findings in a broader, unified context and extends them in several directions.It is divided into eight chapters and three appendices. Chapter 1 starts from the Maxwell’s equations and develops a wave propagation theory in plate-like media with nonlinear polarizability. In chapter 2 a theoretical framework in terms of weak solutions is given in order to prove the existence and uniqueness of a solution of the semilinear boundary-value problem derived in the first chapter. Chapter 3 presents a different approach to the solvability theory of the reduced frequency-domain model. Here the boundary-value problem is reduced to finding solutions of a system of one-dimensional nonlinear Hammerstein integral equations. Chapter 4 describes an approach to the spectral analysis of the linearized system of integral equations. Chapters 5 and 6 are devoted to the numerical approximation of the solutions of the corresponding mathematical models. Chapter 7 contains detailed descriptions, discussions and evaluations of the numerical experiments. Finally, chapter 8 gives a summary of the results and an outlook for future work.

Resonant Tunneling: Quantum Waveguides of Variable Cross-Section, Asymptotics, Numerics, and Applications (Lecture Notes on Numerical Methods in Engineering and Sciences)

by Lev Baskin Pekka Neittaanmäki Boris Plamenevskii Oleg Sarafanov

This book studies electron resonant tunneling in two- and three-dimensional quantum waveguides of variable cross-sections in the time-independent approach. Mathematical models are suggested for the resonant tunneling and develop asymptotic and numerical approaches for investigating the models. Also, schemes are presented for several electronics devices based on the phenomenon of resonant tunneling. Compared to its first edition, this book includes four new chapters, redistributes the content between chapters and modifies the estimates of the remainders in the asymptotics of resonant tunneling characteristics. The book is addressed to mathematicians, physicists, and engineers interested in waveguide theory and its applications in electronics.

Resorbable Fiber-Forming Polymers for Biotextile Applications

by Chirag R. Gajjar Martin W. King

This book summarizes the properties and applications of conventional and commercially available fiber-forming, bioresorbable polymers, as well as those currently under study, for use as biotextiles. Factors affecting the performance of these biomaterials are presented, and precautionary measures to reduce premature, hydrolytic degradation during manufacturing and processing are discussed. Because of the structural requirements of medical devices and the technological advancements in synthetic fibers and textile technology, the new field of "Biotextiles" has evolved to exploit the potential of various woven, knitted, braided and non-woven textile structures for biomedical applications. Textile substrates provide certain unique mechanical properties to the medical device and because of an inherently high level of porosity, they can encourage cell growth and promote migration and proliferation. Bioresorbable devices that assist in the repair and regeneration of damaged tissues have in recent years replaced many of the permanent prosthetic devices. Thus, the topic of "Bioresorbable Biomaterials" generates much interest and research activity in the field of biomaterials science today. For this reason, the use of bioresorbable polymers as fibers is currently dominating the field of resorbable biomaterials for applications from sutures to tissue engineering scaffolds.

Resource Allocation and MIMO for 4G and Beyond

by Francisco Rodrigo Porto Cavalcanti

This book will be a comprehensive collection of advanced concepts related to 4th generation wireless communication systems. It will be divided into two main parts: resource allocation and transceiver architectures. These two research areas are at the core of the recent advances experimented by wireless communication systems. Each chapter will cover a relevant, timely, topic with two focuses: a first part which is of tutorial and survey nature, reviews the state of the art in that topic, followed by a more deep treatment including current research topics, case studies and performance analysis.

Resource Allocation and Performance Optimization in Communication Networks and the Internet

by Liansheng Tan

This book provides a comprehensive introduction to the underlying theory, design techniques and analytical results of wireless communication networks, focusing on the core principles of wireless network design. It elaborates the network utility maximization (NUM) theory with applications in resource allocation of wireless networks, with a central aim of design and the QoS guarantee. <P><P> It presents and discusses state-of-the-art developments in resource allocation and performance optimization in wireless communication networks. It provides an overview of the general background including the basic wireless communication networks and the relevant protocols, architectures, methods and algorithms.

Resource Allocation for OFDMA Systems (Wireless Networks)

by Chen Chen Xiang Cheng

This book introduces the sources and historic collection campaigns of resource allocation in wireless communication systems. The unique characteristics of MIMO-OFDMA systems are thoroughly studied and summarized. Remarks on resource allocation and spectrum sharing are also presented, which demonstrate the great value of resource allocation techniques, but also introduce distinct challenges of resource allocation in MIMO-OFDMA systems. Novel resource allocation techniques for OFDMA Systems are surveyed from various applications (e.g., for unicast, or multicast with Guaranteed BER and Rate, subcarrier and power allocation with various detectors, low-complexity energyefficient resource allocation, etc.) in this book.Due to the high mobility and low latency requirements of 5G wireless communications, this book discusses how to deal with the imperfect CSI. It also discusses how to deal with e.g., throughput maximization, outage probabilities maximization and guarantee, energy efficiency, physical-layer security issues with feedback channel capacity constraints, in order to characterize and understand the applications of practical scenes.This book will target professionals & researchers working in the fields of Wireless Communications and Networking, Resource Allocation and Transmissions. Advanced-level students in electrical engineering and computer science will also find this book useful as a secondary textbook.

Resource Allocation for Software Defined Networks (SpringerBriefs in Computer Science)

by Dariusz Gasior

The book is devoted to the selected resource allocation problems in Software- Defined Networks. Moreover, it covers results concerning Software Defined Wide Area Networks (SD-WANs) which is one of the current networking hot topics. The variety of different cases is considered including virtualization and information-centric paradigm. For each case, the mathematical model together with the problem formulation is given and some solution algorithms are proposed. The algorithms are discussed and evaluated, mostly with simulations.

Resource Allocation in Backscatter-Assisted Communication Networks

by Xiaozheng Gao Kai Yang Dusit Niyato Shimin Gong

This book investigates the resource allocation in backscatter-assisted communication networks. With the development of backscatter communications, integrating backscatter communication technology into traditional communication networks can improve the network performance significantly. To fully improve the performance of backscatter-assisted communication networks, resource allocation is of special importance. It is worth to mention that the resource allocation in backscatter-assisted communication networks is more challenging than that in traditional communication networks, and the tradeoff of the performance between backscatter communications and traditional communications needs to be carefully considered. In this book, considering that game theory is an attractive tool for developing and analyzing distributed, flexible, and autonomous networks, we develop the auction-based time scheduling schemes, contract-based time assignment scheme, and evolutionary game-based access point and service selection scheme for the backscatter-assisted radio-frequency-powered cognitive networks, where some important properties such as individual rationality are considered. We also employ the optimization approach and develop a relay mode selection and resource sharing scheme for backscatter-assisted hybrid relay networks to improve the throughput. We believe that the developed resource allocation schemes in this book can provide useful guidance for the design of backscatter-assisted communication networks and future Internet of Things. Graduate students, researchers, and engineers in the field of communication networks can benefit from the book.

Resource Allocation in Decentralized Systems with Strategic Agents

by Ali Kakhbod

This thesis presents a significant contribution to decentralized resource allocation problems with strategic agents. The study focused on three classes of problems arising in communication networks. (C1). Unicast service provisioning in wired networks. (C2). Multi-rate multicast service provisioning in wired networks. (C3). Power allocation and spectrum sharing in multi-user multi-channel wireless communication systems. Problems in (C1) are market problems; problems in (C2) are a combination of markets and public goods; problems in (C3) are public goods. Dr. Kakhbod developed game forms/mechanisms for unicast and multi-rate multicast service provisioning that possess specific properties. First, the allocations corresponding to all Nash equilibria (NE) of the games induced by the mechanisms are optimal solutions of the corresponding centralized allocation problems, where the objective is the maximization of the sum of the agents' utilities. Second, the strategic agents voluntarily participate in the allocation process. Third, the budget is balanced at the allocations corresponding to all NE of the game induced by the mechanism as well as at all other feasible allocations. For the power allocation and spectrum sharing problem, he developed a game form that possesses the second and third properties as detailed above along with a fourth property: the allocations corresponding to all NE of the game induced by the mechanism are Pareto optimal. The thesis contributes to the state of the art of mechanism design theory. In particular, designing efficient mechanisms for the class of problems that are a combination of markets and public goods, for the first time, have been addressed in this thesis. The exposition, although highly rigorous and technical, is elegant and insightful which makes this thesis work easily accessible to those just entering this field and will also be much appreciated by experts in the field.

Resource Allocation in Network Function Virtualization: Problems, Models and Algorithms

by Song Yang Nan He Fan Li Xiaoming Fu

Network Function Virtualization (NFV) has recently attracted considerable attention from both research and industrial communities. Numerous papers have been published regarding solving the resource- allocation problems in NFV, from various perspectives, considering different constraints, and adopting a range of techniques. However, it is difficult to get a clear impression of how to understand and classify different kinds of resource allocation problems in NFV and how to design solutions to solve these problems efficiently.This book addresses these concerns by offering a comprehensive overview and explanation of different resource allocation problems in NFV and presenting efficient solutions to solve them. It covers resource allocation problems in NFV, including an introduction to NFV and QoS parameters modelling as well as related problem definition, formulation and the respective state-of-the-art algorithms.This book allows readers to gain a comprehensive understanding of and deep insights into the resource allocation problems in NFV. It does so by exploring (1) the working principle and architecture of NFV, (2) how to model the Quality of Service (QoS) parameters in NFV services, (3) definition, formulation and analysis of different kinds of resource allocation problems in various NFV scenarios, (4) solutions for solving the resource allocation problem in NFV, and (5) possible future work in the respective area.

Resource Allocation in Uplink OFDMA Wireless Systems: Optimal Solutions and Practical Implementations (IEEE Series on Digital & Mobile Communication #24)

by Elias Yaacoub Zaher Dawy

Tackling problems from the least complicated to the most, Resource Allocation in Uplink OFDMA Wireless Systems provides readers with a comprehensive look at resource allocation and scheduling techniques (for both single and multi-cell deployments) in uplink OFDMA wireless networks—relying on convex optimization and game theory to thoroughly analyze performance. Inside, readers will find topics and discussions on: Formulating and solving the uplink ergodic sum-rate maximization problem Proposing suboptimal algorithms that achieve a close performance to the optimal case at a considerably reduced complexity and lead to fairness when the appropriate utility is used Investigating the performance and extensions of the proposed suboptimal algorithms in a distributed base station scenario Studying distributed resource allocation where users take part in the scheduling process, and considering scenarios with and without user collaboration Formulating the sum-rate maximization problem in a multi-cell scenario, and proposing efficient centralized and distributed algorithms for intercell interference mitigation Discussing the applicability of the proposed techniques to state-of-the-art wireless technologies, LTE and WiMAX, and proposing relevant extensions Along with schematics and figures featuring simulation results, Resource Allocation in Uplink OFDMA Wireless Systems is a valuable book for?wireless communications and cellular systems professionals and students.

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