802.11 Wireless LAN Fundamentals gives networking engineers and IT professionals the knowledge they need to design, deploy, manage, and troubleshoot their own wireless local-area networks (WLANs). Starting with an overview of the technology and architecture of WLANs, the book goes on to explain services and advanced features that such applications can provide. Most importantly, it provides practical design guidance and deployment recommendations.

The first book to cover conceptual quantum chemistry, Atomic Charges, Bond Properties, and Molecular Energies deftly explores chemical bonds, their intrinsic energies, and the corresponding dissociation energies, which are relevant in reactivity problems. This unique first-hand, self-contained presentation develops relatively uncomplicated but physically meaningful approaches to molecular properties by providing derivations of all the required formulas from scratch, developed in Professor Fliszar's laboratory. This book is vitally relevant to organic- and biochemists, molecular biologists, materials scientists, and nanoscientists.

Plant neurobiology is a newly emerging field of plant sciences. It covers signalling and communication at all levels of biological organization – from molecules up to ecological communities. In this book, plants are presented as intelligent and social organisms with complex forms of communication and information processing. Authors from diverse backgrounds such as molecular and cellular biology, electrophysiology, as well as ecology treat the most important aspects of plant communication, including the plant immune system, abilities of plants to recognize self, signal transduction, receptors, plant neurotransmitters and plant neurophysiology. Further, plants are able to recognize the identity of herbivores and organize the defence responses accordingly. The similarities in animal and plant neuronal/immune systems are discussed too. All these hidden aspects of plant life and behaviour will stimulate further intense investigations in order to understand the communicative plants in their whole complexity.

Today's home wireless networks offer tremendous advantages over hard-wired networks-among them, unprecedented portability and, of course, the freedom from wires strung all over your house! Unless you have a firm grasp on all the latest networking technologies, though, wireless networks won't free you from digging your way through a collection of confusing, jargon-riddled manuals; dealing with obscure configuration modes; and finally, hoping somehow it will all work once you flip the switch. If you want a home wireless network without the headaches, then Complete Wireless Home Networking: Windows XP Edition, by wireless networking authority Paul Heltzel, is for you. Written in an engaging, conversational style, this book offers reliable advice on determining your equipment needs, then guides you through each step of building a wireless network-installation, setup, configuration, and troubleshooting. And with minimal fuss, you'll have a home wireless network that's fast, secure, and optimized for your physical environment and computing requirements. Whether you're accessing the Internet from your back yard, sending jobs to a printer downstairs, or transferring files effortlessly, you'll wonder how you got by without a wireless network.

A well reported outcome of the current expansion in the use of computers within all areas of academic, commercial and industrial life, is the growing number of users without formal training in programming or computer technology. Such users wish simply to employ the machine as a tool in their daily work, and are not interested in becoffiing computer professionals or in understanding the details of their application system. People within this category come from a very wide range of educational and professional backgrounds, each individual ideally requiring a system carefully matched to the technical, psychological and social needs of his occupation. The chapters in this volume are concerned with the satisfaction of this ideal.

Now you can have the awesome benefits of wireless LANs without falling victim to their notorious security flaws. Leading wireless security expert Lee Barken shows you practical workarounds and fixes for the vulnerabilities in today's WLANs, introduces high-security wireless protocols new to the marketplace, and offers step-by-step instructions for protecting all your wireless information, from the home to the enterprise.This is the definitive and easy-to-use WLAN security book you've been searching for-whether you're a network administrator,security specialist, manager, or home user.

This book explains the basics of WLAN technology, how to install and set up a basic WLAN system, and key security options that should be considered.

This book presents the Java(TM) 2 Platform, Micro Edition (J2ME(TM)) standards that support the development of applications for consumer devices such as mobile phones, two-way pagers, and wireless personal organizers. To create these standards, Sun collaborated with such consumer device companies as Motorola, Nokia, NTT DoCoMo, Research In Motion, Samsung, Siemens, Sony Ericsson, and many others. The result is a highly portable, small-footprint application development environment that brings the unique capabilities of Java technology, including platform independence and enhanced security, to the rapidly growing wireless market.

This is the first comprehensive book to address the design of RF MEMS-based circuits for use in high performance wireless systems. A groundbreaking research and reference tool, the book enables you to understand the realm of applications of RF MEMS technology; become knowledgeable of the wide variety and performance levels of RF MEMS devices; and partition the architecture of wireless systems to achieve greater levels of performance. This innovative resource also guides you through the design process of RF MEMS-based circuits, and establishes a practical knowledge base for the design of high-yield RF MEMS-based circuits. The book features exercises and detailed case studies on working RF MEMS circuits that help you decide what approaches best fit your design constraints. This unified treatment of RF MEMS-based circuit technology opens up a new world of solutions for meeting the unique challenges of low power/portable wireless products.

In 1973, Carl Sagan published The Cosmic Connection, a daring view of the universe, which rapidly became a classic work of popular science and inspired a generation of scientists and enthusiasts. This seminal work is reproduced here for a whole new generation to enjoy. In Sagan's typically lucid and lyrical style, he discusses many topics from astrophysics and solar system science, to colonization, terraforming and the search for extraterrestrials. Sagan conveys his own excitement and wonder, and relates the revelations of astronomy to the most profound human problems and concerns: issues that are just as valid today as they were thirty years ago. New to this edition are Freeman Dyson's comments on Sagan's vision and the importance of the work, Ann Druyan's assessment of Sagan's cultural significance as a champion of science, and David Morrison's discussion of the advances made since 1973 and what became of Sagan's predictions. Who knows what wonders this third millennium will reveal, but one thing is certain: Carl Sagan played a unique role in preparing us for them.

Straight from the field, this is the definitive guide to hacking wireless networks. Authored by world-renowned wireless security auditors, this hands-on, practical guide covers everything you need to attack - or protect - any wireless network.

Driven by the rapidly escalating capacity demands of emerging wireless systems, researchers have developed a wide array of novel signal processing techniques for use in such systems. Now, two leading researchers synthesize the field's vast new literature, giving working engineers practical guidance for designing advanced wireless receivers.

Written for those in the telecom, datacom and infocom industries, this provocative text deals with the development of the wireless communications industry and technology during the coming ten to fifteen years

As a basic introduction to wireless networking, Wireless Networks First-Step assumes that readers have no previous wireless experience. The book provides an overview of wireless networking, along with details of applicable standards and technologies. Newcomers to wireless technologies will find practical information along with an abundance of examples. Case studies throughout the chapters provide real-world implementation examples, presented in a non-technical fashion. Implementation details are discussed only to the extent that readers can identify what type of wireless network may be appropriate for their needs. Wireless Networks First-Step, written by Jim Geier, begins with a basic introduction to wireless networks and an explanation of radio wave communications. It then reviews different types of wireless networks including WPANs (wireless personal area networks), WLANs (wireless local area networks), wireless MANs (metropolitan area networks), and WWANs (wireless wide area networks). The final section covers security threats to wireless networks, and solutions to combat these threats.

This informative text describes how to build wireless sensor networks from the layers of the communication protocol through the design of network nodes. It also describes the design features of the wireless devices themselves.

Розглядаючи Україну як колонію Російської імперії, автор викладає основні етапи діяльності більшовицьких організацій в Україні, створення КП(б)У 1918 року та її діяльність. Відкидає генетичний зв'язок КП(б)У з УСДРП та РУП.