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1. |
Record Nr. |
UNINA9910454373603321 |
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Autore |
Siwiak Kazimierz |
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Titolo |
Radiowave propagation and antennas for personal communications / / Kazimierz Siwiak, Yasaman Bahreini |
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Pubbl/distr/stampa |
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Norwood, Massachusetts : , : Artech House, , ©2007 |
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[Piscataqay, New Jersey] : , : IEEE Xplore, , [2007] |
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ISBN |
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Edizione |
[3rd ed.] |
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Descrizione fisica |
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1 online resource (499 p.) |
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Collana |
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Artech House mobile communications library |
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Disciplina |
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Soggetti |
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Radio - Antennas |
Radio wave propagation |
Mobile communication systems |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Introduction -- Fixed-site antennas -- Radio communication channel -- Radio frequency spectrum -- Communication using earth-orbiting satellites -- Radiowave propagation over a smooth earth -- Radiowave propagation: urban and suburban paths -- Signals in multipath propagation -- Receiver sensitivity and transmitted fields -- Simulated human body devices -- Loops, dipoles, patch antennas -- Radio communication system designs -- Appendix: A. FORTRAN program: the near field of dipoles and helices -- B. FORTRAN code: the near field of loops -- C. Digital communications codes and character sets -- D. HF propagation models. |
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Sommario/riassunto |
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This newly revised and expanded edition of the Artech House classic, Radiowave Propagation and Antennas for Personal Communications, offers a current and comprehensive introduction to the practice and underpinnings of personal communications. Every chapter has been updated to explain how the latest ultra-wide band technology affects all aspects of personal communications. The third edition covers important innovations such as wireless local networks, personal networks, and MIMO techniques. Written for a broad spectrum of readers, this practical resource is useful to experienced engineers |
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designing systems, EE professors teaching fundamentals, or technology consultants needing a quick, cohesive overview. In addition to its accessible coverage of technology and theory, this unique volume examines how radio waves and wireless devices affect the human body. |
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2. |
Record Nr. |
UNINA9910458930403321 |
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Autore |
Gargarella Roberto <1964-> |
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Titolo |
The legal foundations of inequality : constitutionalism in the Americas, 1776-1860 / / Roberto Gargarella [[electronic resource]] |
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Pubbl/distr/stampa |
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Cambridge : , : Cambridge University Press, , 2010 |
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ISBN |
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1-107-20491-7 |
0-511-84732-7 |
1-282-63065-2 |
9786612630651 |
0-511-74987-2 |
0-511-74912-0 |
0-511-74332-7 |
0-511-74225-8 |
0-511-75061-7 |
0-511-74440-4 |
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Descrizione fisica |
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1 online resource (ix, 273 pages) : digital, PDF file(s) |
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Collana |
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Cambridge studies in the theory of democracy ; ; 8 |
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Disciplina |
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Soggetti |
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Constitutional history - Latin America |
Constitutional history - United States |
Equality before the law - Latin America |
Equality before the law - United States |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from publisher's bibliographic system (viewed on 05 Oct 2015). |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Introduction -- Radicalism : honoring the general will -- Conservativism : the moral cement of society -- Liberalism : between tyranny and anarchy -- The quest for equality. |
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Sommario/riassunto |
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The long revolutionary movements that gave birth to constitutional |
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democracies in the Americas were founded on egalitarian constitutional ideals. They claimed that all men were created equal with similar capacities and also that the community should become self-governing. Following the first constitutional debates that took place in the region, these promising egalitarian claims, which gave legitimacy to the revolutions, soon fell out of favor. Advocates of a conservative order challenged both ideals and favored constitutions that established religion and created an exclusionary political structure. Liberals proposed constitutions that protected individual autonomy and rights but established severe restrictions on the principle of majority rule. Radicals favored an openly majoritarian constitutional organization that, according to many, directly threatened the protection of individual rights. This book examines the influence of these opposite views during the 'founding period' of constitutionalism in countries including the United States, Argentina, Colombia, Chile, Ecuador, Mexico, Peru, and Venezuela. |
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