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Electromagnetic Waves 2 examines antennas in the field of radio waves. It analyzes the conditions of use and the parameters that are necessary in order to create an effective antenna. This book presents antennas’ definitions, regulations and fundamental equations, and describes the various forms of antennas that can be used in radio: horns, waveguides, coaxial cables, printed and miniature antennas. It presents the characterization methods and the link budgets as well as the digital methods that make the fine calculation of radio antennas possible. Electromagnetic Waves 2 is a collaborative work, completed only with the invaluable contributions of Ibrahima Sakho, Hervé Sizun and JeanPierre Blot, not to mention the editor, Pierre-Noël Favennec. Aimed at students and engineers, this book provides essential theoretical support for the design and deployment of wireless radio and optical communication systems.
Electromagnetic Waves 1 examines Maxwell’s equations and wave propagation. It presents the scientific bases necessary for any application using electromagnetic fields, and analyzes Maxwell’s equations, their meaning and their resolution for various situations and material environments. These equations are essential for understanding electromagnetism and its derived fields, such as radioelectricity, photonics, geolocation, measurement, telecommunications, medical imaging and radio astronomy. This book also deals with the propagation of electromagnetic, radio and optical waves, and analyzes the complex factors that must be taken into account in order to understand the problems of propagation in a free and confined space. Electromagnetic Waves 1 is a collaborative work, completed only with the invaluable contributions of Ibrahima Sakho, Hervé Sizun and JeanPierre Blot, not to mention the editor, Pierre-Noël Favennec. Aimed at students and engineers, this book provides essential theoretical support for the design and deployment of wireless radio and optical communication systems.
The scientific and technical basis underpinning modern measurement techniques used for electromagnetic quantities and phenonema is necessarily wide-ranging, as the electromagnetic environment spans all possible frequencies and wavelengths. Measurements must be applicable in fields as varied as nanotechnologies, telecommunications, meteorology, geo-location, radio-astronomy, health, biology, and many others. In order to adequately cover the many different facets of the topic, this book provides examples from the entire range of the electromagnetic spectrum — covering frequencies from several hertz to terahertz, and considering wavelength distances ranging from nanometers to light-years in o...
This volume, which was produced under the aegis of France Tilicom R&D, Europe's leading communications R&D center, contains contributions from sixty specialists. It includes state of the art surveys of the theory and practice of network technology in the context of communicating objects. This concept considers the different facets of work ranging from radio frequency transmission and non fiber-optics, to voice recognition devices and software infrastructures, that activate objects in the human environment. This book attempts to answer these questions: How do objects communicate? How are they used? What can they do, today and tomorrow?
The growing popularity of advanced multimedia-rich applications along with the increasing affordability of high-end smart mobile devices has led to a massive growth in mobile data traffic that puts significant pressure on the underlying network technology. However, no single network technology will be equipped to deal with this explosion of mobile data traffic. While wireless technologies had a spectacular evolution over the past years, the present trend is to adopt a global heterogeneous network of shared standards that enables the provisioning of quality of service and quality of experience to the end-user. To this end, enabling technologies like machine learning, Internet of Things and di...
Publishes papers reporting on research and development in optical science and engineering and the practical applications of known optical science, engineering, and technology.
This is birdwatchingwatching, a hilarious true story about fathers and sons, the birds (not the bees), and the eccentricities of two very different species.
Master paediatric pain management with precision This practical guide equips nurses and healthcare professionals with evidence-based skills to effectively manage children's pain. Explore assessment techniques, pain relief strategies, and best practices for both hospital and community settings, with a focus on core knowledge, advanced insights, clinical scenarios, and practical tips. The fully updated third edition includes an expanded procedural sedation section, enhanced coverage of capnography for respiratory monitoring, a new quality improvement sciences section, and additional online MCQs and self-assessment material. Written by experienced authors, with contributions from global experts...
The classes and their interests are analyzed first, in an examination of the Breton economy, and then the social system and the political superstructure that preserved it. Finally, Professor Collins addresses the question of order itself. How did the elites preserve order? What order did they wish to preserve? His analysis suggests that early modern France was a much more unstable, mobile society than previously thought; that absolutism existed more in theory than in practice; and that local elites and the Crown compromised in mutually beneficial ways to maintain their combined control over society. They imposed a new order, one neither feudal nor absolutist, on a society reexamining the meaning of basic structures such as the relationship of the family and the individual, the role of women in society, and property.
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