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Water Quality Policy and Management in Asia - - Bog - Taylor & Francis Ltd - Plusbog.dk

Water Quality Policy and Management in Asia - - Bog - Taylor & Francis Ltd - Plusbog.dk

Asia''s 48 countries have an estimated 1.757 billion urban population and 2.4 billion people in rural areas (or approximately 60 per cent of the global population). Divided into central, eastern, southern, south-eastern and western regions, the continent is also extremely heterogeneous in terms of water quality conditions. The policies and management practices vary significantly from one country to another, and even within one country, depending on specific economic, political, social, environmental, legal and institutional factors. In order to appreciate the complexities associated with water quality policy and management, it is important to acknowledge the multiplicity of interrelated and often conflicting events, issues, actors and interests, both within and outside the water sector that impact them. This complexity, alongside institutional inability for systematic and coordinated collaboration, are potent reasons as to why, in the second decade of the 21st century, formulation and implementation of efficient water quality management policies benefitting humankind and the environment have still not been achieved. The book was originally published as a special issue of the International Journal of Water Resources Development.

DKK 1106.00
1

Water Quality Policy and Management in Asia - - Bog - Taylor & Francis Ltd - Plusbog.dk

Water Quality Policy and Management in Asia - - Bog - Taylor & Francis Ltd - Plusbog.dk

Asia''s 48 countries have an estimated 1.757 billion urban population and 2.4 billion people in rural areas (or approximately 60 per cent of the global population). Divided into central, eastern, southern, south-eastern and western regions, the continent is also extremely heterogeneous in terms of water quality conditions. The policies and management practices vary significantly from one country to another, and even within one country, depending on specific economic, political, social, environmental, legal and institutional factors. In order to appreciate the complexities associated with water quality policy and management, it is important to acknowledge the multiplicity of interrelated and often conflicting events, issues, actors and interests, both within and outside the water sector that impact them. This complexity, alongside institutional inability for systematic and coordinated collaboration, are potent reasons as to why, in the second decade of the 21st century, formulation and implementation of efficient water quality management policies benefitting humankind and the environment have still not been achieved. The book was originally published as a special issue of the International Journal of Water Resources Development.

DKK 320.00
1

Two-Dimensional Nanostructures - Mahmood Aliofkhazraei - Bog - Taylor & Francis Ltd - Plusbog.dk

Two-Dimensional Nanostructures - Mahmood Aliofkhazraei - Bog - Taylor & Francis Ltd - Plusbog.dk

After the 2010 Nobel Prize in Physics was awarded to Andre Geim and Konstantin Novoselov "for groundbreaking experiments regarding the two-dimensional material graphene," even more research and development efforts have been focused on two-dimensional nanostructures. Illustrating the importance of this area in future applications, Two-Dimensional Nanostructures covers the fabrication methods and properties of these materials. The authors begin with discussions on the properties, size effect, applications, classification groups, and growth of nanostructures. They then describe various characterization and fabrication methods, such as spectrometry, low-energy electron diffraction, physical and chemical vapor deposition, and molecular beam epitaxy. The remainder of the text focuses on mechanical, chemical, and physical properties and fabrication methods, including a new mechanical method for fabricating graphene layers and a model for relating the features and structures of nanostructured thin films. With companies already demonstrating the capabilities of graphene in a flexible touch-screen and a 150 GHz transistor, nanostructures are on their way to replacing silicon as the materials of choice in electronics and other areas. This book aids you in understanding the current chemical, mechanical, and physical processes for producing these "miracle materials."

DKK 1022.00
1

Social Media and Law Enforcement Practice in Poland - - Bog - Taylor & Francis Ltd - Plusbog.dk

Social Media and Law Enforcement Practice in Poland - - Bog - Taylor & Francis Ltd - Plusbog.dk

This book explores the role of social media in the daily practice of Polish criminal justice and how social media is, in turn, reshaping this practice. Based on empirical research, it confronts common beliefs about how police officers, prosecutors, and judges use social media in their work. Readers will find answers to the following questions: Which social media platforms are popular among law enforcement officers in Poland? How do the police use social media to investigate and prosecute crimes? What are the strategies for using social media to communicate with the community? What strategies are most successful? The findings in this book challenge some popular beliefs and theories about social media in criminal justice. As the first book to explore the use of social media in criminal justice outside of English-speaking countries, this collection of academic research will be of interest to academics focusing on criminology, criminal justice, and policing and will be useful to police leaders and officers, police social media administrators, prosecutors, and judges, who may be inspired by the research to implement new successful and more effective practices. The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons Attribution-NonCommercial (CC-BY-NC) 4.0 International license. The costs of the Open Access publication were covered by the University of Warsaw under the Excellence Initiative Research University Action I.2.4 Supporting Open Access Publications.

DKK 561.00
1

Radio Wave Propagation and Channel Modeling for Earth-Space Systems - - Bog - Taylor & Francis Ltd - Plusbog.dk

Radio Wave Propagation and Channel Modeling for Earth-Space Systems - - Bog - Taylor & Francis Ltd - Plusbog.dk

The accurate design of earth–space systems requires a comprehensive understanding of the various propagation media and phenomena that differ depending on frequencies and types of applications. The choice of the relevant channel models is crucial in the design process and constitutes a key step in performance evaluation and testing of earth–space systems. The subject of this book is built around the two characteristic cases of satellite systems: fixed satellites and mobile satellite systems. Radio Wave Propagation and Channel Modeling for Earth–Space Systems discusses the state of the art in channel modeling and characterization of next-generation fixed multiple-antennas and mobile satellite systems, as well as propagation phenomena and fade mitigation techniques. The frequencies of interest range from 100 MHz to 100 GHz (from VHF to W band), whereas the use of optical free-space communications is envisaged. Examining recent research advances in space-time tropospheric propagation fields and optical satellite communication channel models, the book covers land mobile multiple antennas satellite- issues and relative propagation campaigns and stratospheric channel models for various applications and frequencies. It also presents research and well-accepted satellite community results for land mobile satellite and tropospheric attenuation time-series single link and field synthesizers. The book examines aeronautical communications channel characteristics and modeling, relative radio wave propagation campaigns, and stratospheric channel model for various applications and frequencies. Propagation effects on satellite navigation systems and the corresponding models are also covered.

DKK 468.00
1

Microwave Propagation and Remote Sensing - Pranab Kumar Karmakar - Bog - Taylor & Francis Ltd - Plusbog.dk

Microwave Propagation and Remote Sensing - Pranab Kumar Karmakar - Bog - Taylor & Francis Ltd - Plusbog.dk

Because prevailing atmospheric/troposcopic conditions greatly influence radio wave propagation above 10 GHz, the unguided propagation of microwaves in the neutral atmosphere can directly impact many vital applications in science and engineering. These include transmission of intelligence, and radar and radiometric applications used to probe the atmosphere, among others. Where most books address either one or the other, Microwave Propagation and Remote Sensing: Atmospheric Influences with Models and Applications melds coverage of these two subjects to help readers develop solutions to the problems they present. This reference offers a brief, elementary account of microwave propagation through the atmosphere and discusses radiometric applications in the microwave band used to characterize and model atmospheric constituents, which is also known as remote sensing. Summarizing the latest research results in the field, as well as radiometric models and measurement methods, this book covers topics including: - - Free space propagation - - - Reflection, interference, polarization, and other key aspects of electromagnetic wave propagation - - - Radio refraction and its effects on propagation delay - - - Methodology of estimating water vapor attenuation using radiosonde data - - - Knowledge of rain structures and use of climatological patterns to estimate/measure attenuation of rain, snow, fog, and other prevalent atmospheric particles and human-made substances - - - Dual/multifrequency methodology to deal with the influence of clouds on radiometric attenuation - - - Deployment of microwaves to ascertain various tropospheric conditions - - - Composition and characteristics of the troposphere, to help readers fully understand microwave propagation - - - Derived parameters of water, free space propagation, and conditions and variable constituents such as water vapor and vapor pressure, density, and ray bending -

DKK 810.00
1

Mobile Communications Handbook - - Bog - Taylor & Francis Ltd - Plusbog.dk

Mobile Communications Handbook - - Bog - Taylor & Francis Ltd - Plusbog.dk

With 26 entirely new and 5 extensively revised chapters out of the total of 39, the Mobile Communications Handbook, Third Edition presents an in-depth and up-to-date overview of the full range of wireless and mobile technologies that we rely on every day. This includes, but is not limited to, everything from digital cellular mobile radio and evolving personal communication systems to wireless data and wireless networks Illustrating the extraordinary evolution of wireless communications and networks in the last 15 years, this book is divided into five sections: - Basic Principles - provides the essential underpinnings for the wide-ranging mobile communication technologies currently in use throughout the world. - Wireless Standards contains technical details of the standards we use every day, as well as insights into their development. - Source Compression and Quality Assessment covers the compression techniques used to represent voice and video for transmission over mobile communications systems as well as how the delivered voice and video quality are assessed. - Wireless Networks examines the wide range of current and developing wireless networks and wireless methodologies. - Emerging Applications explores newly developed areas of vehicular communications and 60 GHz wireless communications. - Written by experts from industry and academia, this book provides a succinct overview of each topic, quickly bringing the reader up to date, but with sufficient detail and references to enable deeper investigations. Providing much more than a "just the facts" presentation, contributors use their experience in the field to provide insights into how each topic has emerged and to point toward forthcoming developments in mobile communications.

DKK 810.00
1

Wireless and Mobile Networking - Mahbub Hassan - Bog - Taylor & Francis Ltd - Plusbog.dk

Wireless and Mobile Networking - Mahbub Hassan - Bog - Taylor & Francis Ltd - Plusbog.dk

There has been phenomenal uptake of wireless and mobile networking technologies in the past decades. Significant developments have taken place during this time making the wireless technology more affordable, effective, and reliable. This book explains the fundamental principles and protocols of key existing and emerging wireless networking technologies. The book begins with a review of the fundamentals of wireless communications. It covers the basic theories and terminologies of coding and modulation, which maps digital information to the underlying signal, as well as the models to capture the dynamics of wireless signal propagation in the environment. It provides in-depth coverage of the WiFi evolution covering both the mainstream WiFi, which operates in 2.4/5GHz with new versions targeting 6GHz, as well as some of the niche WiFi standards that operate outside the mainstream bands such as 802.11af in 700MHz TV bands, 802.11ah in 900MHz to connect the Internet of Things (IoT), and 802.11ad/ay in 60GHz to support multi-gigabit applications. The book covers the fundamental concepts of cellular networks, examines the advancements brought forth by each generation, and discusses new applications and the underpinning wireless technologies promised by 5G. It also covers a recently developed long-range low-power wireless networking technology called LoRa, which is the fastest growing technology to connect millions of IoT sensors and devices throughout the world. The concluding chapters examine emerging wireless paradigms such as Artificial Intelligence for wireless networking, sensing with wireless signals, and mobile networking with flying base stations carried by drones and unmanned aerial vehicles (UAVs). With many worked-out examples, illustrative figures, and multiple choice questions, this book is an ideal for students and a valuable reference for anyone working in this rapidly evolving field.

DKK 505.00
1

High Frequency Communication and Sensing - Ahmet (waveworks Tekin - Bog - Taylor & Francis Ltd - Plusbog.dk

High Frequency Communication and Sensing - Ahmet (waveworks Tekin - Bog - Taylor & Francis Ltd - Plusbog.dk

High Frequency Communication and Sensing: Traveling-Wave Techniques introduces novel traveling wave circuit techniques to boost the performance of high-speed circuits in standard low-cost production technologies, like complementary metal oxide semiconductor (CMOS). A valuable resource for experienced analog/radio frequency (RF) circuit designers as well as undergraduate-level microelectronics researchers, this book: - Explains the basics of high-speed signaling, such as transmission lines, distributed signaling, impedance matching, and other common practical RF background material - Promotes a dual-loop coupled traveling wave oscillator topology, the trigger mode distributed wave oscillator, as a high-frequency multiphase signal source - Introduces a force-based starter mechanism for dual-loop, even-symmetry, multiphase traveling wave oscillators, presenting a single-loop version as a force mode distributed wave antenna (FMDWA) - Describes higher-frequency, passive inductive, and quarter-wave-length-based pumped distributed wave oscillators (PDWOs) - Examines phased-array transceiver architectures and front-end circuits in detail, along with distributed oscillator topologies - Devotes a chapter to THz sensing, illustrating a unique method of traveling wave frequency multiplication and power combining - Discusses various data converter topologies, such as digital-to-analog converters (DACs), analog-to-digital converters (ADCs), and GHz-bandwidth sigma-delta modulators - Covers critical circuits including phase rotators and interpolators, phase shifters, phase-locked loops (PLLs), delay-locked loops (DLLs), and more It is a significantly challenging task to generate and distribute high-speed clocks. Multiphase low-speed clocks with sharp transition are proposed to be a better option to accommodate the desired timing resolution. High Frequency Communication and Sensing: Traveling-Wave Techniques provides new horizons in the quest for greater speed and performance.

DKK 920.00
1

Wireless Network Performance Enhancement via Directional Antennas: Models, Protocols, and Systems - - Bog - Taylor & Francis Ltd - Plusbog.dk

Wireless Network Performance Enhancement via Directional Antennas: Models, Protocols, and Systems - - Bog - Taylor & Francis Ltd - Plusbog.dk

Directional antenna technologies have made significant advancements in the last decade. These advances have opened the door to many exciting new design opportunities for wireless networks to enhance quality of service (QoS), performance, and network capacity. In this book, experts from around the world present the latest research and development in wireless networks with directional antennas. Their contributed chapters provide detailed coverage of the models, algorithms, protocols, and applications of wireless networks with various types of directional antennas operating at different frequency bands. Wireless Network Performance Enhancement via Directional Antennas: Models, Protocols, and Systems identifies several interesting research problems in this important field, providing an opportunity to learn about solid solutions to these issues. It also looks at a number of practical hardware designs for the deployment of next-generation antennas, as well as efficient network protocols for exploitation of directional communications. The book is organized into six sections: - Directional Antennas - – covers the hardware design of different types of antennas - - Directional MAC - – focuses on the principles of designing medium access control (MAC) protocols for directional networks - - Millimeter Wave - – explores different design aspects of millimeter wave (mm-Wave) systems, which operate in higher-frequency bands (such as 60 GHz) - - MIMO - – explains how to establish a multiple-input, multiple-output (MIMO) antenna system and describes how it operates in a cognitive radio network - - Advanced Topics - – looks at additional topics such as beamforming in cognitive radio networks, multicast algorithm development, network topology management for connectivity, and sensor network lifetime issues - - Applications - – illustrates some important applications, such as military networks and airborne networking, that benefit from directional networking designs - With this book, researchers and engineers will be well-equipped to advance the research and development in this important field. If you’re new to this field, you will find this book to be a valuable reference on basic directional networking principles, engineering design, and challenges.

DKK 476.00
1