01435nam--2200469---450-99000101486020331620050906154007.088-350-8396-20101486USA010101486(ALEPH)000101486USA01010148620020305d1990----km-y0itay0103----baitaIT||||||||001yyTempo ed educazione nel post-modernoGiuseppe VicoBresciaLa scuolac1990221 p.20 cmPedagogia 200062001Pedagogia 20006001-------2001EducazioneSaggiTempoPercezione153.753VICO,Giuseppe<1938- >460137ITsalbcISBD990001014860203316II.4. 953(VI B 329)108074 LMVI BII.4. 953a(VI B 329 BIS)108073 LMVI BII.4. 953b(VI B 329 A)108072 LMVI BBKUMAPATTY9020020305USA011221PATTY9020020305USA011223PATTY9020020305USA01122420020403USA011742PATRY9020040406USA011710COPAT69020050906USA011540ANNAMARIA9020120330USA010855Tempo ed educazione nel post-moderno252742UNISA01082nam0-22003611i-450-99000547593020331620010829120000.0000547593USA01000547593(ALEPH)000547593USA0100054759320010829d1980-------|0enac50------baengUS|||| |||||<<The>> newly industrializing countries in the world economiyBela BalassaNew YorkPergamon Press1980455 p.23 cm.New York330.9172America Centrale. Messico21BALASSA,Bela32105Pergamon PressITSOL20120104990005475930203316DIP.TO SCIENZE ECONOMICHE - (SA)DS 300 330.9172 bal250 DISES300 330.9172 bal250 DISESBKDISES20121027USA01153220121027USA011613Newly industrializing countries in the world economiy1128612UNISAUSA792407049nam 2200661 450 991014412120332120180612234330.01-281-84090-497866118409070-470-75444-30-470-75445-110.1002/9780470754443(CKB)1000000000555290(EBL)366851(SSID)ssj0000241320(PQKBManifestationID)11186529(PQKBTitleCode)TC0000241320(PQKBWorkID)10298739(PQKB)10357126(MiAaPQ)EBC366851(CaBNVSL)mat08040420(IDAMS)0b00006485f0ed7e(IEEE)8040420(PPN)250787792(OCoLC)264716940(EXLCZ)99100000000055529020171024d2008 uy engur|n|---|||||txtccrSatellite communications systems engineering atmospheric effects, satellite link design and system performance /Louis J. Ippolito, JrChichester : $bWiley, ,c2008[Piscataqay, New Jersey] :IEEE Xplore,[2008]1 online resource (396 p.)Wiley series on wireless communications and mobile computingDescription based upon print version of record.0-470-72527-3 Includes bibliographical references and index.List of Acronyms -- Preface -- Chapter 1 Introduction to Satellite Communications -- 1.1 Early History of Satellite Communications -- 1.2 Some Basic Communications Satellite System Definitions -- 1.3 Regulatory Process for Satellite Communications -- 1.4 Overview of Book Structure and Topics -- References -- Chapter 2 Satellite Orbits -- 2.1 Kepler's Laws -- 2.2 Orbital Parameters -- 2.3 Orbits in Common Use -- 2.4 Geometry of GSO Links -- References -- Problems -- Chapter 3 Satellite Subsystems -- 3.1 Satellite Bus -- 3.2 Satellite Payload -- References -- Chapter 4 The RF Link -- 4.1 Transmission Fundamentals -- 4.2 System Noise -- 4.3 Link Performance Parameters -- References -- Problems -- Chapter 5 Link System Performance -- 5.1 Link Considerations -- 5.2 Uplink -- 5.3 Downlink -- 5.4 Percent of Time Performance Specifications -- References -- Problems -- Chapter 6 Transmission Impairments -- 6.1 Radiowave Frequency and Space Communications -- 6.2 Radiowave Propagation Mechanisms -- 6.3 Propagation Below About 3 GHz -- 6.4 Propagation Above About 3 GHz -- 6.5 Radio Noise -- References -- Problems -- Chapter 7 Propagation Effects Modeling and Prediction -- 7.1 Atmospheric Gases -- 7.2 Clouds and Fog -- 7.3 Rain Attenuation -- 7.4 Depolarization -- 7.5 Tropospheric Scintillation -- References -- Problems -- Chapter 8 Rain Fade Mitigation -- 8.1 Power Restoral Techniques -- 8.2 Signal Modification Restoral Techniques -- 8.3 Summary -- References -- Problems -- Chapter 9 The Composite Link -- 9.1 Frequency Translation (FT) Satellite -- 9.2 On-Board Processing (OBP) Satellite -- 9.3 Comparison of FT and OBP Performance -- 9.4 Intermodulation Noise -- 9.5 Link Design Summary -- References -- Problems -- Chapter 10 Satellite Multiple Access -- 10.1 Frequency Division Multiple Access -- 10.2 Time Division Multiple Access -- 10.3 Code Division Multiple Access -- References -- Problems -- Chapter 11 The Mobile Satellite Channel -- 11.1 Mobile Channel Propagation -- 11.2 Narrowband Channel.11.3 Wideband Channel -- 11.4 Multi-Satellite Mobile Links -- References -- Appendix A Satellite Signal Processing Elements -- A.1 Analog Systems -- A.2 Digital Baseband Formatting -- A.3 Digital Source Combining -- A.4 Digital Carrier Modulation -- A.5 Summary -- References -- Appendix B Error Functions and Bit Error Rate -- B.1 Error Functions -- B.2 Approximation for BER -- Index.Provides an invaluable, detailed and up-to-date coverage of atmospheric effects and their impact on satellite communications systems design and performance. Significant progress has been made in the last decade in the understanding and modelling of propagation effects on radio wave propagation in the bands utilized for satellite communications. This book provides a comprehensive description and analysis of all atmospheric effects of concern for today's satellite systems, and the tools necessary to design the links and to evaluate system performance. This book will serve as an excellent reference to communications engineers, wireless network and system engineers, system designers and graduate students in satellite communications and related areas. Key features: . Provides the state of the art in communications satellite link design and performance from the practicing engineer perspective / concise descriptions, specific procedures and comprehensive solutions . Contains the calculations and tools necessary for evaluating system performance . Provides a complete evaluation of atmospheric effects, modelling and prediction . Focuses on the satellite free-space link as the primary element in the design and performance for satellite communications, and recognizes the importance of free-space considerations such as atmospheric effects, frequency of operation and adaptive mitigation techniques . Contains sample calculations and step-by-step methods for calculating many propagation effects Dr. Louis Ippolito, over a brilliant career has done it all. He's carried out satellite research at NASA, designed satellite systems for the aerospace industry, and taught satellite engineering at The George Washington University. Now, in a comprehensive and highly readable book, he has encapsulated his knowledge in clear and quite intelligent form. His completely up-to-date book covers the latest innovations that range from mobile satellites to millimeter wave satellites and associated rain fade mitigation technologies. His chapters on propagation effects modeling and prediction, RF transmission impairments and link systems performance are truly outstanding. If you want to understand satellite communications and RF propagation, you need Dr. Ippolito's book. Dr. Joseph N. Pelton, Former Dean, International Space University, founding President of the Society of Satellite Professionals International (SSPI), and author of a number of books on satellite communications including Wireless and Satellite Telecommunications.Wiley series on wireless communications and mobile computing.Artificial satellites in telecommunicationBroadband communication systemsArtificial satellites in telecommunication.Broadband communication systems.621.382621.3825Ippolito Louis J.976736CaBNVSLCaBNVSLCaBNVSLBOOK9910144121203321Satellite communications systems engineering2225011UNINA01341nam 2200385Ia 450 99639087340331620221108033339.0(CKB)1000000000667855(EEBO)2240951550(OCoLC)12529602(EXLCZ)99100000000066785519850909d1700 uy |engurbn||||a|bb|The Julian and Gregorian year, or, The difference betwixt the old and new-stile[electronic resource] shewing, that the reformed churches should not alter their old-stile, but that the Romanists should return to itLondon Printed for Richard Sare ...1700[4], 26, [2] pReproduction of original in Huntington Library.Attributed to John Willis. cf. NUC pre-1956.Errata: p. [4]Advertisement: p. [1]-[2] at end.eebo-0113Calendar, JulianCalendar, GregorianCalendar, Julian.Calendar, Gregorian.Willes John1646 or 7-1700.1001064EAAEAAm/cWaOLNBOOK996390873403316The Julian and Gregorian year, or, The difference betwixt the old and new-stile2352004UNISA