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Ubiquitous Computing

Ubiquitous Computing PDF Author: Stefan Poslad
Publisher: John Wiley & Sons
ISBN: 1119965268
Category : Technology & Engineering
Languages : en
Pages : 474

Book Description
This book provides an introduction to the complex field of ubiquitous computing Ubiquitous Computing (also commonly referred to as Pervasive Computing) describes the ways in which current technological models, based upon three base designs: smart (mobile, wireless, service) devices, smart environments (of embedded system devices) and smart interaction (between devices), relate to and support a computing vision for a greater range of computer devices, used in a greater range of (human, ICT and physical) environments and activities. The author details the rich potential of ubiquitous computing, the challenges involved in making it a reality, and the prerequisite technological infrastructure. Additionally, the book discusses the application and convergence of several current major and future computing trends. Key Features: Provides an introduction to the complex field of ubiquitous computing Describes how current technology models based upon six different technology form factors which have varying degrees of mobility wireless connectivity and service volatility: tabs, pads, boards, dust, skins and clay, enable the vision of ubiquitous computing Describes and explores how the three core designs (smart devices, environments and interaction) based upon current technology models can be applied to, and can evolve to, support a vision of ubiquitous computing and computing for the future Covers the principles of the following current technology models, including mobile wireless networks, service-oriented computing, human computer interaction, artificial intelligence, context-awareness, autonomous systems, micro-electromechanical systems, sensors, embedded controllers and robots Covers a range of interactions, between two or more UbiCom devices, between devices and people (HCI), between devices and the physical world. Includes an accompanying website with PowerPoint slides, problems and solutions, exercises, bibliography and further reading Graduate students in computer science, electrical engineering and telecommunications courses will find this a fascinating and useful introduction to the subject. It will also be of interest to ICT professionals, software and network developers and others interested in future trends and models of computing and interaction over the next decades.

Ubiquitous Computing

Ubiquitous Computing PDF Author: Stefan Poslad
Publisher: John Wiley & Sons
ISBN: 1119965268
Category : Technology & Engineering
Languages : en
Pages : 474

Book Description
This book provides an introduction to the complex field of ubiquitous computing Ubiquitous Computing (also commonly referred to as Pervasive Computing) describes the ways in which current technological models, based upon three base designs: smart (mobile, wireless, service) devices, smart environments (of embedded system devices) and smart interaction (between devices), relate to and support a computing vision for a greater range of computer devices, used in a greater range of (human, ICT and physical) environments and activities. The author details the rich potential of ubiquitous computing, the challenges involved in making it a reality, and the prerequisite technological infrastructure. Additionally, the book discusses the application and convergence of several current major and future computing trends. Key Features: Provides an introduction to the complex field of ubiquitous computing Describes how current technology models based upon six different technology form factors which have varying degrees of mobility wireless connectivity and service volatility: tabs, pads, boards, dust, skins and clay, enable the vision of ubiquitous computing Describes and explores how the three core designs (smart devices, environments and interaction) based upon current technology models can be applied to, and can evolve to, support a vision of ubiquitous computing and computing for the future Covers the principles of the following current technology models, including mobile wireless networks, service-oriented computing, human computer interaction, artificial intelligence, context-awareness, autonomous systems, micro-electromechanical systems, sensors, embedded controllers and robots Covers a range of interactions, between two or more UbiCom devices, between devices and people (HCI), between devices and the physical world. Includes an accompanying website with PowerPoint slides, problems and solutions, exercises, bibliography and further reading Graduate students in computer science, electrical engineering and telecommunications courses will find this a fascinating and useful introduction to the subject. It will also be of interest to ICT professionals, software and network developers and others interested in future trends and models of computing and interaction over the next decades.

Marconi

Marconi PDF Author: Marc Raboy
Publisher: Oxford University Press
ISBN: 0199313601
Category : Technology & Engineering
Languages : en
Pages : 888

Book Description
A little over a century ago, the world went wireless. Cables and all their limiting inefficiencies gave way to a revolutionary means of transmitting news and information almost everywhere, instantaneously. By means of "Hertzian waves," as radio waves were initially known, ships could now make contact with other ships (saving lives, such as on the doomed S.S. Titanic); financial markets could coordinate with other financial markets, establishing the price of commodities and fixing exchange rates; military commanders could connect with the front lines, positioning artillery and directing troop movements. Suddenly and irrevocably, time and space telescoped beyond what had been thought imaginable. Someone had not only imagined this networked world but realized it: Guglielmo Marconi. As Marc Raboy shows us in this enthralling and comprehensive biography, Marconi was the first truly global figure in modern communications. Born to an Italian father and an Irish mother, he was in many ways stateless, working his cosmopolitanism to advantage. Through a combination of skill, tenacity, luck, vision, and timing, Marconi popularized--and, more critically, patented--the use of radio waves. Soon after he burst into public view at the age of 22 with a demonstration of his wireless apparatus in London, 1896, he established his Wireless Telegraph & Signal Company and seemed unstoppable. He was decorated by the Czar of Russia, named an Italian Senator, knighted by King George V of England, and awarded the Nobel Prize for Physics--all before the age of 40. Until his death in 1937, Marconi was at the heart of every major innovation in electronic communication, courted by powerful scientific, political, and financial interests. He established stations and transmitters in every corner of the globe, from Newfoundland to Buenos Aires, Hawaii to Saint Petersburg. Based on original research and unpublished archival materials in four countries and several languages, Raboy's book is the first to connect significant parts of Marconi's story, from his early days in Italy, to his groundbreaking experiments, to his protean role in world affairs. Raboy also explores Marconi's relationshps with his wives, mistresses, and children, and examines in unsparing detail the last ten years of the inventor's life, when he returned to Italy and became a pillar of Benito Mussolini's fascist regime. Raboy's engrossing biography, which will stand as the authoritative work of its subject, proves that we still live in the world Marconi created.

Transition in Power

Transition in Power PDF Author: Peter J. Hugill
Publisher: Rowman & Littlefield
ISBN: 1498544231
Category : Political Science
Languages : en
Pages : 331

Book Description
Hegemonic transitions are never clear, and they usually emerge from a period of multi-polarity in the world-system. Two types of state tend to contend for power: trading states and territorial states, although most states are never “pure” and tend to contain within them multiple polities with different agendas. This book describes the hegemonic transition between two major trading states, Britain and America. British decline began in the late Victorian era, but the transition to American power was slow, and other states also sought hegemony. Transitions between trading states focus on economic struggle, though struggles between trading and territorial states and between territorial states are marked by armed conflict. In 1919 President Woodrow Wilson saw three arenas of competition developing between Britain and America: in international transportation, international communication, and petroleum. But Britain was challenged economically by America as early as 1861 via the Morrill Tariff, her economic hegemony was gone by the 1880s, and she was “defeated” by 1947. From the 1880s on both America and Germany sought to replace Britain as hegemonic power not only through their implementation of protectionist economic policies, but also through the adoption of revised versions of the world-economy, through new technologies, and, in the case of Germany, military power. Britain struggled to stay in place. Britain’s world-economy was that of a pure trading state. Maritime trade in organic materials was organized through global capitalism and control over submarine cable telecommunications rather than territorial possession. America’s rise was greatly helped by being a capitalist power in possession of a secure territorial base in the mid-section of the North American continent, but America suffered from multiple polities competing for power, with the South particularly problematic. Germany developed a radically new world-economy that synthesized resources using organic chemistry. German science and technology began to diffuse to American corporate laboratories before World War One. After that war, diffusion to American laboratories and universities was massive and helped secure American hegemony.

Low Power UWB CMOS Radar Sensors

Low Power UWB CMOS Radar Sensors PDF Author: Hervé Paulino
Publisher: Springer Science & Business Media
ISBN: 1402084099
Category : Technology & Engineering
Languages : en
Pages : 239

Book Description
Low Power UWB CMOS Radar Sensors deals with the problem of designing low cost CMOS radar sensors. The radar sensor uses UWB signals in order to obtain a reasonable target separation capability, while maintaining a maximum signal frequency below 2 GHz. This maximum frequency value is well within the reach of current CMOS technologies. The use of UWB signals means that most of the methodologies used in the design of circuits and systems that process narrow band signals, can no longer be applied. Low Power UWB CMOS Radar Sensors provides an analysis between the interaction of UWB signals, the antennas and the processing circuits. This analysis leads to some interesting conclusions on the types of antennas and types of circuits that should be used. A methodology to compare the noise performance of UWB processing circuits is also derived. This methodology is used to analyze and design the constituting circuits of the radar transceiver. In order to validate the design methodology a CMOS prototype is designed and experimentally evaluated.

100 Years of Radio in South Africa, Volume 2

100 Years of Radio in South Africa, Volume 2 PDF Author: Sisanda Nkoala
Publisher: Springer Nature
ISBN: 3031407067
Category : Social Science
Languages : en
Pages : 201

Book Description
The book brings together media scholars and practitioners to deliberate on the role and influence of radio broadcasting in South Africa over the past 100 years. The publication will add to the existing body of knowledge on radio in this context by being among one of the few to consider radio broadcasting in South Africa. Essentially, the book will make a distinct contribution focusing on a critique of the medium’s role in community-building and culture making among others. While the book will provide relevant theoretical frameworks, it also aims to include the voices of media practitioners who can reflect on the importance of this medium from a more realistic perspective. Volume 2 focuses on the impact of digitization on radio in South Africa, and considers the future of radio in South Africa.

Atentop 01 2003

Atentop 01 2003 PDF Author:
Publisher: AntenTop
ISBN:
Category :
Languages : en
Pages : 103

Book Description


Ultra Wideband

Ultra Wideband PDF Author: Boris Lembrikov
Publisher: BoD – Books on Demand
ISBN: 9533071397
Category : Computers
Languages : en
Pages : 470

Book Description
Ultra wideband technology is one of the most promising directions in the rapidly developing modern communications. Ultra wideband communication system applications include radars, wireless personal area networks, sensor networks, imaging systems and high precision positioning systems. Ultra wideband transmission is characterized by high data rate, availability of low-cost transceivers, low transmit power and low interference. The proposed book consisting of 19 chapters presents both the state-of-the-art and the latest achievements in ultra wideband communication system performance, design and components. The book is addressed to engineers and researchers who are interested in the wide range of topics related to ultra wideband communications.

Communications

Communications PDF Author: R. W. Burns
Publisher: IET
ISBN: 0863413307
Category : History
Languages : en
Pages : 652

Book Description
This book traces the evolution of communications from 500 BC, when fire beacons were used for signalling, to the 1940s, when high definition television systems were developed for the entertainment, education and enlightenment of society.

Tesla

Tesla PDF Author: W. Bernard Carlson
Publisher: Princeton University Press
ISBN: 0691165610
Category : Biography & Autobiography
Languages : en
Pages : 516

Book Description
“The gold standard for Tesla biography.”—Science “Superb.”—Nature The definitive account of Tesla's life and work Nikola Tesla was a major contributor to the electrical revolution that transformed daily life at the turn of the twentieth century. His inventions, patents, and theoretical work formed the basis of modern AC electricity, and contributed to the development of radio and television. Like his competitor Thomas Edison, Tesla was one of America's first celebrity scientists, enjoying the company of New York high society and dazzling the likes of Mark Twain with his electrical demonstrations. An astute self-promoter and gifted showman, he cultivated a public image of the eccentric genius. Even at the end of his life when he was living in poverty, Tesla still attracted reporters to his annual birthday interview, regaling them with claims that he had invented a particle-beam weapon capable of bringing down enemy aircraft. Plenty of biographies glamorize Tesla and his eccentricities, but until now none has carefully examined what, how, and why he invented. In this groundbreaking book, W. Bernard Carlson demystifies the legendary inventor, placing him within the cultural and technological context of his time, and focusing on his inventions themselves as well as the creation and maintenance of his celebrity. Drawing on original documents from Tesla's private and public life, Carlson shows how he was an "idealist" inventor who sought the perfect experimental realization of a great idea or principle, and who skillfully sold his inventions to the public through mythmaking and illusion. This major biography sheds new light on Tesla's visionary approach to invention and the business strategies behind his most important technological breakthroughs.

Wireless Technology

Wireless Technology PDF Author: Subal Kar
Publisher: CRC Press
ISBN: 1040154549
Category : Technology & Engineering
Languages : en
Pages : 275

Book Description
This book covers the active devices, circuits and systems including antennas used in the electromagnetic spectrum for wireless technology in the GHz to THz frequency range. It also includes the whole domain of digital communication techniques and its use in modern electronic communication including those in 5G and the forthcoming 6G mobile communication. The presentation of the book is in a concise yet complete way and stresses the physical and technical aspects with application view-points but using minimum possible mathematics. The book: Discusses the intricate differences and evolution of GHz (i.e. microwaves) to THz devices and circuits including antennas, useful for wireless technology in this higher frequency domain of electromagnetic spectrum, comparing those with their counter parts at lower RF frequency of KHz to MHz. Briefly discusses various wireless systems in the GHz frequency range—both analogue and digital; like RDAR and radio-aids to navigation, satellite communication, mobile communication, GPS and so forth. Highlights the need and usefulness of digital communication and covers various digital modulation techniques like PCM, ASK, FSK, PSK, QAM and also various analogue and digital multiplexing techniques like FDM, TDM, CDM, OFDM, and NOMA useful for modern digital communication. Discusses the new and emerging technology of wireless technology at THz frequency covering signal generation, waveguide and quasi-optic components including sensors and detectors, antennas, channel modelling, T-ray imaging and so forth. Covers the applications of THz for various emerging new applications like concealed weapon detection (CWD), standoff detection of explosives and abusive drugs, medical application of THz including the use of THz in forthcoming 6G mobile communication etc. This overall scenario of developments of wireless technology from GHz to THz frequency domain is expected to attract the interest of students, research scholars, professionals, and even the general readers alike with a new vision to have a quick yet in-depth glimpse of the progress of wireless technology in the modern times. It is primarily written for senior undergraduate students, post-graduate students, and academic researchers in the fields of electrical engineering, electronics and communication engineering, wireless communication, telecommunication, and computer engineering.