Introduction to Communication Studies is an introductory textbook on the theories of and approaches to communication studies for first -year students. It reflects the dynamic evolution of communication studies in the recent past, introducing new insights and approaches to communication media and digital communication.

Acknowledging the unique requirements of the African communication environment, the text is illuminated with a range of uniquely South and southern African examples to contextualise the theory, with chapters written by leading academic authors from East and Southern Africa.

The recent development of easy-to-use sources and detectors of terahertz radiation has enabled growth in applications of terahertz (Thz) imaging and sensing. This vastly adaptable technology offers great potential across a wide range of areas, and the Handbook of terahertz technology for imaging, sensing and communications explores the fundamental principles, important developments and key applications emerging in this exciting field.
Part one provides an authoritative introduction to the fundamentals of terahertz technology for imaging, sensing and communications. The generation, detection and emission of waves are discussed alongside fundamental aspects of surface plasmon polaritons, terahertz near-field imaging and sensing, room temperature terahertz detectors and terahertz wireless communications. Part two goes on to discuss recent progress and such novel techniques in terahertz technology as terahertz bio-sensing, array imagers, and resonant field enhancement of terahertz waves. Fiber-coupled time-domain spectroscopy systems (THz-TDS), terahertz photomixer systems, terahertz nanotechnology, frequency metrology and semiconductor material development for terahertz applications are all reviewed. Finally, applications of terahertz technology are explored in part three, including applications in tomographic imaging and material spectroscopy, art conservation, and the aerospace, wood products, semiconductor and pharmaceutical industries.
With its distinguished editor and international team of expert contributors, the Handbook of terahertz technology for imaging, sensing and communications is an authoritative guide to the field for laser engineers, manufacturers of sensing devices and imaging equipment, security companies, the military, professionals working in process monitoring, and academics interested in this field.
Examines techniques for the generation and detection of terahertz wavesDiscusses material development for terahertz applicationsExplores applications in tomographic imaging, art conservation and the pharmaceutical and aerospace industries

This book gives the fundamental principles and device design techniques for surface acoustic wave filters. It covers the devices in widespread use today: bandpass and pulse compression filters, correlators and non-linear convolvers and resonators. The newest technologies for low bandpass filters are fully covered such as unidirectional transducers, resonators in impedance element filters, resonators in double-mode surface acoustic wave filters and transverse-coupled resonators using waveguides.
The book covers the theory of acoustic wave physics, the piezoelectric effect, electrostatics at a surface, effective permittivity, piezoelectric SAW excitation and reception, and the SAW element factor. These are the main requirements for developing quasi-static theory, which gives a basis for the non-reflective transducers in transversal bandpass filters and interdigital pulse compression filters. It is also needed for the reflective transducers used in the newer devices.
* A thorough revision of a classic on surface acoustic wave filters first published in 1985 and still in print
* Uniquely combines easy -to -understand principles with practical design techniques for all the devices in widespread use today
* Complete coverage of all the latest devices which are key to mobile phones, TVs and radar systems
* Includes a new foreword by Sir Eric Albert Ash

Introduction to Fiber Optics is well established as an introductory text for engineers, managers and students. It meets the needs of systems designers, installation engineers, electronic engineers and anyone else looking to gain a working knowledge of fiber optics with a minimum of maths. Review questions are included in the text to enable the reader to check their understanding as they work through the book.
The new edition of this successful book is now fully up to date with the new standards, latest technological developments and includes a new chapter on specifying optical components.
Whether you are looking for a complete self-study course in fiber optics, a concise reference text to dip into, or a readable introduction to this fast moving technology, this book has the solution.
* A practical, no-nonsense guide to fiber optics
* Up-to-date coverage that minimises mathematics
* New material on specifying optical components

Digital Dilemmas is a groundbreaking ethnographic, mixed method approach to understanding dynamics of power and resistance as they are played out around the future of the internet. M. I. Franklin looks at the way that publics, governments, and multilateral institutions are being redefined and reinvented in digital settings that are ubiquitous and yet controlled by a relative few. Franklin does this through three original and wide-ranging case studies that get at the way that computer-mediated power relations play out "on the ground" through a mixture of overlapping online and offline activity, at personal, community, and transnational levels. Case studies include online activities around homelessness and street papers in the U.S. and around the world, digital and human rights activism carried out though the United Nations, and the ongoing battle between proprietary and free and open source software proponents. The result is a thought-provoking and seminal work on the way that the new paradigms of power and resistance forged online reshape localized and traditional power structures offline.

A uniquely practical DSP text, this book gives a thorough understanding of the principles and applications of DSP with a minimum of mathematics, and provides the reader with an introduction to DSP applications in telecoms, control engineering and measurement and data analysis systems.
The new edition contains:
- Expanded coverage of the basic concepts to aid understanding
- New sections on filter sysnthesis, control theory and contemporary topics of speech and image recognition
- Full solutions to all questions and exercises in the book
- A complete on-line resource
The on-line resource offers instructors and students complete lecture notes, lecture videos, PowerPoint slides for presentations, final exams and solutions, project exercises, URLs to DSP applet experiment animations and e-meeting software for direct communication with the authors.
Assuming the reader already has some prior knowledge of signal theory, this textbook will be highly suitable for undergraduate and postgraduate students in electrical and electronic engineering taking introductory and advanced courses in DSP, as well as courses in communications and control systems engineering. It will also prove an invaluable introduction to DSP and its applications for the professional engineer.
- Expanded coverage of the basic concepts to aid understanding, along with a wide range of DSP applications
- New textbook features included throughout, including learning objectives, summary
sections, exercises and worked examples to increase accessibility of the text
- Full solutions to all questions and exercises included in the book, with extra resources on-line

There are many data communications titles covering design, installation, etc, but almost none that specifically focus on industrial networks, which are an essential part of the day-to-day work of industrial control systems engineers, and the main focus of an increasingly large group of network specialists.
The focus of this book makes it uniquely relevant to control engineers and network designers working in this area. The industrial application of networking is explored in terms of design, installation and troubleshooting, building the skills required to identify, prevent and fix common industrial data communications problems - both at the design stage and in the maintenance phase.
The focus of this book is 'outside the box'. The emphasis goes beyond typical communications issues and theory to provide the necessary toolkit of knowledge to solve industrial communications problems covering RS-232, RS-485, Modbus, Fieldbus, DeviceNet, Ethernet and TCP/IP. The idea of the book is that in reading it you should be able to walk onto your plant, or facility, and troubleshoot and fix communications problems as quickly as possible. This book is the only title that addresses the nuts-and-bolts issues involved in design, installation and troubleshooting that are the day-to-day concern of engineers and network specialists working in industry.
* Provides a unique focus on the industrial application of data networks
* Emphasis goes beyond typical communications issues and theory to provide the necessary toolkit of knowledge to solve industrial communications problems
* Provides the tools to allow engineers in various plants or facilities to troubleshoot and fix communications problems as quickly as possible

Readers will use this knowledge to develop the required techniques for design, installation and maintenance of their own fiber optic systems.
* Ideal for those with some background in communications but without previous knowledge of fiber optics
* Provides a comprehensive treatment of the fundamentals of fiber optic systems and their individual components
* Places emphasis on practical techniques of component installation and system design

TCP/IP (Transmission Control Protocol/Internet Protocol) is the suite of communications protocols used to connect hosts on the Internet. TCP/IP uses several protocols, the two main ones being TCP and IP. TCP/IP is built into the UNIX operating system and is used by the Internet, making it the de facto standard for transmitting data over networks. The TCP/IP suite of protocols has become a dominant technology due to its widespread use and reliability, while Ethernet is fast becoming a de facto industrial networking standard.
* A practical hands-on book that covers troubleshooting and maintenance of TCP/IP networks
* Provides a solid understanding of the application of TCP/IP from an engineering perspective
* Complete coverage from networking fundamentals to Internet-enabled control systems

This book offers a thorough review of research on intelligent communication systems, focusing on the applications of artificial intelligence to telecommunications that help realize user-friendly interfaces.
Intelligent Communication Systems presents the direct result of more than a decade of the author's experiences, research activity, and education in applying artificial intelligence to telecommunications technology. In this book, several fundamental research areas are covered. Some of the areas covered are human-friendly interfaces for telecommunication services with such concepts as Telesensation and HyperReality, computer vision, and the telecommunication description method based on state space. In artificial intelligence research state space is the set of all attainable states of a problem and the possible alternative courses of action to determine the best solution to the problem.

Signal Processing for Active Control sets out the signal processing and automatic control techniques that are used in the analysis and implementation of active systems for the control of sound and vibration. After reviewing the performance limitations introduced by physical aspects of active control, Stephen Elliott presents the calculation of the optimal performance and the implementation of adaptive real time controllers for a wide variety of active control systems.
Active sound and vibration control are technologically important problems with many applications. 'Active control' means controlling disturbance by superimposing a second disturbance on the original source of disturbance. Put simply, initial noise + other specially-generated noise or vibration = silence or controlled noise].
This book presents a unified approach to techniques that are used in the analysis and implementation of different control systems. It includes practical examples at the end of each chapter to illustrate the use of various approaches.
This book is intended for researchers, engineers, and students in the field of acoustics, active control, signal processing, and electrical engineering.

Vintage Radio, Television and Hi-Fi are highly popular 'modern antiques' - and offer the added challenge for restorers of the repair of classic valve-based circuits. This highly readable book encompasses all aspects of buying, collecting, restoring, repairing, sourcing parts, professional services, clubs and societies, etc. Covering the technical side as well as collecting, this book offers the most comprehensive coverage available.

The first half of the book deals primarily with technical aspects of restoration, what components are needed and where they can be found. The second half of the book provides a wealth of useful information: names and addresses of clubs and societies, auctions and antique fairs; a professional services directory; how to get hold of service data. Armed with this book the enthusiast will be able to tackle the restoration of a vintage machine with confidence.
A highly popular type of 'modern antique'
Covers technical aspects of classic valve-based circuitry
The most complete work for vintage audio and TV enthusiasts, dealers and repairers

The audio amplifier is at the heart of audio design. Its performance determines largely the performance of any audio system. John Linsley Hood is widely regarded as the finest audio designer around, and pioneered design in the post-valve era. His mastery of audio technology extends from valves to the latest techniques. This is John Linsley Hood's greatest work yet, describing the milestones that have marked the development of audio amplifiers since the earliest days to the latest systems.

Including classic amps with valves at their heart and exciting new designs using the latest components, this book is the complete world guide to audio amp design.
John Linsley Hood is responsible for numerous amplifier designs that have led the way to better sound, and has also kept up a commentary on developments in audio in magazines such as The Gramophone, Electronics in Action and Electronics and Wireless World. He is also the author of The Art of Linear Electronics and Audio Electronics published by Newnes.

Complete world guide to audio amp design written by world famous author
Covers classic amps to new designs using latest components
includes the best of valves as well as best of transistors

Contributors and Acknowledgements: ADC Broadcast. Alcatel. Agilent(Hewlett Packard) Andrews Antennas. BBC. Barco. Baird. Boeing industries. Canon lenses. CPI-Eimac Dolby laboritories. E2V. Harris Broadcast. Hitachi-Denshi. Farnsworth. Ikegami. JVC. KDKA. Marconi. Marconi plc. NTL. nVision. Pace. Panasonic. Pixel Instruments(J.Cooper). Quantel. Sony. Tektronix. Thales multimedia. Thomson. Zworykin.

PV has traditionally been used for electric power in space. Solar panels on spacecraft are usually the sole source of power to run the sensors, active heating and cooling, and communications. Photovoltaics for Space: Key Issues, Missions and Alternative Technologies provides an overview of the challenges to efficiently produce solar power in near-Earth space and beyond: the materials and device architectures that have been developed to surmount these environmental and mission-specific barriers. The book is organized in four sections consisting of detailed introductory and background content as well as a collection of in-depth space environment, materials processing, technology, and mission overviews by international experts. This book will detail how to design and optimize a space power system's performance for power-to-weight ratio, effectiveness at end of operational life (EOL) compared to beginning of operational life (BOL), and specific mission objectives and goals. This book outlines the knowledge required for practitioners and advanced students interested in learning about the background, materials, devices, environmental challenges, missions, and future for photovoltaics for space exploration.

Emerging Practices in Telehealth: Best Practices in a Rapidly Changing Field is an introduction to telehealth basics, best practices and implementation methods. The book guides the reader from start to finish through the workflow implementation of telehealth technology, including EMRs, clinical workflows, RPM, billing systems, and patient experience. It also explores how telehealth can increase healthcare access and decrease disparities across the globe. Practicing clinicians, medical fellows, allied healthcare professionals, hospital administrators, and hospital IT professionals will all benefit from this practical guidebook.

The relentless advances in all areas of information and communication technology, intelligent systems, and related domains have continued to drive innovative research. Most of these works have attempted to contribute in some form towards improving human life in general and have become indispensable elements of our day-to-day lives. The evolution continues at an accelerated pace while the world faces innumerable challenges and rapid advances in artificial intelligence, wireless communication, sensors, cloud and edge computing, and biomedical sciences. These advances must be documented and studied further in order to ensure society's continual development. The Handbook of Research on Evolving Designs and Innovation in ICT and Intelligent Systems for Real-World Applications disseminates details of works undertaken by various groups of researchers in emerging areas related to information and communication technology, electronics engineering, intelligent systems, and allied disciplines with real-world applications. Covering a wide range of topics such as augmented reality and wireless sensor networks, this major reference work is ideal for industry professionals, researchers, scholars, practitioners, academicians, engineers, instructors, and students.

JOINT COMMUNICATIONS AND SENSING Authoritative resource systematically introducing JCAS technologies and providing valuable information and knowledge to researchers and engineers Based on over six years of dedicated research on joint communications and sensing (JCAS) by the authors, their collaborators, and students, Joint Communications and Sensing is the first book to comprehensively cover the subject of JCAS, which is expected to deliver huge cost and energy savings, and therefore has become a hallmark of future 6G and next generation radar technologies. The book has three parts. Part I presents the basic JCAS concepts and applications and the basic signal processing algorithms to support JCAS. Part II covers communications-centric JCAS designs that describe how sensing can be integrated into communications networks such as 5G and 6G. Part III presents ways to integrate communications in various radar sensing technologies and platforms. Specific sample topics covered in Joint Communications and Sensing include: Three categories of JCAS systems, potential sensing applications of JCAS, signal processing fundamentals, and channel models for communications and radar Frameworks for perceptive mobile networks (PMNs), system modifications to enable PMN sensing, and PMN system issues Orthogonal time-frequency space waveform-based JCAS for IoT, including signal models, echo pre-processing, and target parameter estimation Joint Communications and Sensing provides valuable information and knowledge to researchers and engineers in the communications and radar sensing communities and industries, enabling them to upskill and prepare for JCAS technology research and development. The text is of particular interest to engineers in the wireless communications industry who are pursuing new capabilities in 6G.

Sensors for Ranging and Imaging is a comprehensive textbook and professional reference that provides a solid background in active sensing technology. This new edition has been comprehensively updated and expanded to include the latest radar technologies. Beginning with an introductory section on signal generation, filtering and modulation, the book follows with chapters on radiometry (infrared and microwave) as a background to the active sensing process. The core of the book is concerned with active sensing, starting with active ranging and active imaging sensors (operational principles, components), and goes through the derivation of the radar (and lidar) range equations, and the detection of echo signals, both fundamental to the understanding of radar, sonar and lidar imaging. Further chapters cover signal propagation of both electromagnetic and acoustic energy, and target and clutter characteristics. The remainder of the book involves the basics of the range measurement process, active imaging with an emphasis on noise and linear frequency modulation techniques, Doppler processing, and target tracking. This systematic and thorough guide to ranging and imaging sensors is invaluable for graduate students studying sensing systems and industry professionals wishing to expand or update their knowledge. It offers clear, detailed explanations alongside worked examples to provide readers with an in-depth understanding of the material.

Now in its Third Edition, Fundamentals of Optical Waveguides continues to be an essential resource for any researcher, professional or student involved in optics and communications engineering. Any reader interested in designing or actively working with optical devices must have a firm grasp of the principles of lightwave propagation. Katsunari Okamoto continues to present this difficult technology clearly and concisely with several illustrations and equations. Optical theory encompassed in this reference includes coupled mode theory, nonlinear optical effects, finite element method, beam propagation method, staircase concatenation method, along with several central theorems and formulas. Silicon photonics devices such as coupled resonator optical waveguides (CROW), lattice-form filters, and AWGs are also fully described. This new edition gives readers not only a thorough understanding the silicon photonics devices for on-chip photonic network, but also the capability to design various kinds of devices.

The latest advances in several emerging technologies such as AI, blockchain, privacy-preserving algorithms used in localization and positioning systems, cloud computing and computer vision all have great potential in facilitating social distancing. Benefits range from supporting people to work from home to monitoring micro- and macro- movements such as contact tracing apps using Bluetooth, tracking the movement and transportation level of a city and wireless positioning systems to help people keep a safe distance by alerting them when they are too close to each other or to avoid congestion. However, implementing such technologies in practical scenarios still faces various challenges. This book aims to lay the foundations of how these technologies could be adopted to realize and facilitate social distancing to better manage pandemics and future outbreaks. Starting with basic concepts, models and practical technology-based social distancing scenarios, the authors present enabling wireless technologies and solutions which could be widely adopted to encourage social distancing. They include symptom prediction, detection and monitoring of quarantined people and contact tracing. In the future, smart infrastructures for next-generation wireless systems should incorporate a pandemic mode in their standard architecture and design.