LEADER 00933nam2 2200265 450 001 000031765 005 20220113132335.0 100 $a20171128d1968----km-y0itay50------ba 101 0 $aeng 102 $aUS 105 $ay-------001yy 200 1 $aElectron beam and laser beam technology$fedited by L. Marton and A. B. El-Kareh 210 $aNew York$aLondon$cAcademic press$d1968 215 $aX, 300 p.$cill.$d24 cm 461 0$1001000031758$12001$aAdvances in electronics and electron physics 500 10$aElectron beam and laser beam technology$92570293 610 1 $aFisica nucleare 676 $a539.7$v14$9Fisica atomica e nucleare 700 1$aEl-Kareh,$bA. B.$01073920 701 1$aMarton,$bL.$014802 801 0$aIT$bUNIPARTHENOPE$c20171128$gREICAT$2UNIMARC 912 $a000031765 951 $aP1 AEP 537.5/4 [5]$b11873$cPIST$d2017 996 $aElectron beam and laser beam technology$92570293 997 $aUNIPARTHENOPE LEADER 05528nam 22006974a 450 001 9911019967403321 005 20200520144314.0 010 $a9786610551712 010 $a9781280551710 010 $a1280551712 010 $a9780470052785 010 $a0470052783 010 $a9780470052778 010 $a0470052775 035 $a(CKB)1000000000356785 035 $a(EBL)269140 035 $a(OCoLC)475995890 035 $a(SSID)ssj0000249197 035 $a(PQKBManifestationID)11216426 035 $a(PQKBTitleCode)TC0000249197 035 $a(PQKBWorkID)10205955 035 $a(PQKB)11221377 035 $a(MiAaPQ)EBC269140 035 $a(Perlego)2775736 035 $a(EXLCZ)991000000000356785 100 $a20060309d2006 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aSpaceborne antennas for planetary exploration /$fedited by William A. Imbriale 210 $aHoboken, N.J. $cWiley-Interscience$dc2006 215 $a1 online resource (594 p.) 225 1 $aDeep-space communications and navigation series 300 $aDescription based upon print version of record. 311 08$a9780470051504 311 08$a0470051507 320 $aIncludes bibliographical references and index. 327 $aSpaceborne Antennas for Planetary Exploration; Table of Contents; Foreword; Preface; Acknowledgments; Contributors; Chapter 1: Introduction; 1.1 Technology Drivers; 1.1.1 Frequency Bands Allocated to Deep-Space Communications; 1.1.2 Frequency Bands Recommended for Proximity Links; 1.2 Analysis Techniques for Designing Reflector Antennas; 1.2.1 Radiation-Pattern Analysis; 1.2.2 Feed-Horn Analysis; 1.2.3 Spherical-Wave Analysis; 1.2.4 Dual-Reflector Shaping; 1.2.5 Dichroic Reflector Analysis; 1.2.6 Mesh Analysis; 1.3 Wire Antennas; 1.3.1 Theoretical Formulation 327 $a1.3.2 Arbitrarily Shaped Wires and Wire Junctions1.4 Microstrip Antenna: Analysis, Design, and Application; 1.4.1 Introduction; 1.4.2 Technical Background; 1.4.3 Analysis, Design, and CAD Tools; 1.4.4 Spacecraft Applications; 1.4.5 Summary and Conclusion; 1.5 Antenna Measurements; 1.5.1 Far-Field Measurements; 1.5.2 Near-Field Measurements; 1.5.3 Conclusions; References; Chapter 2: The Early Years; 2.1 Explorer I; 2.2 Pioneers 3 and 4; 2.3 Project Ranger; 2.3.1 High-Gain Antenna System; 2.3.2 Omni Antennas; 2.4 Surveyor; 2.4.1 Surveyor Radio Switching and Antenna System 327 $a2.4.2 The High-Gain Planar Antenna ArrayReferences; Chapter 3: The Planetary Flybys; 3.1 The Mariner Series; 3.1.1 Mariners 1 and 2; 3.1.2 Mariner 5; 3.1.3 Mariner 10; 3.2 Voyager Mission to the Outer Planets; 3.2.1 Voyager S-/X-Band Antenna Subsystem; 3.2.2 Requirements; 3.2.3 Voyager High-Gain Antenna; 3.2.4 Voyager S-Band Feed and Low-Gain Antenna Design; 3.2.5 Voyager Frequency Selective Surface (FSS) Subreflector; References; Chapter 4: The Mars Missions; 4.1 Overview of Missions to Mars; 4.2 NASA Mars OrbiterdLanders; 4.2.1 Mariners 3 and 4; 4.2.2 Mariners 6 and 7 327 $a4.2.3 Mariners 8 and 94.2.4 Viking; 4.2.5 Mars Observer; 4.2.6 Mars Global Surveyor; 4.2.7 Mars Climate Orbiter; 4.2.8 Mars Polar Lander; 4.2.9 Mars Odyssey; 4.3 Mars Rovers; 4.3.1 Mars Pathfinder; 4.3.2 Mars Exploration Rovers; 4.4 Continued Mars Exploration; References; Chapter 5: The Orbiters; 5.1 Magellan to Venus; 5.1.1 The Magellan Spacecraft; 5.1.2 The High-Gain Antenna Subsystem; 5.1.3 The Medium-Gain Antenna; 5.1.4 The Magellan Altimeter Antenna; 5.2 The Galileo Antenna System; 5.2.1 Mission Description; 5.2.2 Requirements; 5.2.3 High-Gain Antenna Trade-off Studies 327 $a5.2.4 Post-Challenger Modifications5.2.5 High-Gain Antenna Design Selected; 5.2.6 Radio Frequency System-High-Gain Antenna; 5.2.7 Low-Gain Antenna System; 5.2.8 Conclusions; 5.3 The Cassini High-Gain Antenna Subsystem; 5.3.1 High-Gain Antenna Requirements and Constraints; 5.3.2 Configuration Selection; 5.3.3 Antenna Modeling and Subsystems Design; 5.3.4 Antenna Performance at S-Band; 5.3.5 Antenna Performance at X-Band; 5.3.6 Antenna Performance at Ku-Band; 5.3.7 Antenna Performance at Ka-Band; 5.3.8 Conclusions; References; Chapter 6: Spaceborne SAR Antennas for Earth Science 327 $a6.1 Introduction 330 $aJPL spacecraft antennas-from the first Explorer satellite in 1958 to current R & DSpaceborne Antennas for Planetary Exploration covers the development of Jet Propulsion Laboratory (JPL) spacecraft antennas, beginning with the first Explorer satellite in 1958 through current research and development activities aimed at future missions. Readers follow the evolution of all the new designs and technological innovations that were developed to meet the growing demands of deep space exploration.The book focuses on the radio frequency design and performance of antennas, but covers envi 410 0$aDeep-space communications and navigation series. 606 $aSpace vehicles$xRadio antennas 606 $aArtificial satellites in telecommunication 607 $aOuter space$xExploration$xEquipment and supplies 615 0$aSpace vehicles$xRadio antennas. 615 0$aArtificial satellites in telecommunication. 676 $a629.43/54 701 $aImbriale$b W. A$g(William A.)$01609892 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9911019967403321 996 $aSpaceborne antennas for planetary exploration$94418247 997 $aUNINA LEADER 04508nam 22007095 450 001 9910299448203321 005 20200703071701.0 010 $a94-017-8020-X 024 7 $a10.1007/978-94-017-8020-9 035 $a(CKB)3710000000262449 035 $a(EBL)1967226 035 $a(OCoLC)894351075 035 $a(SSID)ssj0001372429 035 $a(PQKBManifestationID)11881958 035 $a(PQKBTitleCode)TC0001372429 035 $a(PQKBWorkID)11305050 035 $a(PQKB)10401171 035 $a(DE-He213)978-94-017-8020-9 035 $a(MiAaPQ)EBC1967226 035 $a(PPN)182096688 035 $a(EXLCZ)993710000000262449 100 $a20141015d2015 u| 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aLandscapes and Landforms of Namibia /$fby Andrew Goudie, Heather Viles 205 $a1st ed. 2015. 210 1$aDordrecht :$cSpringer Netherlands :$cImprint: Springer,$d2015. 215 $a1 online resource (164 p.) 225 1 $aWorld Geomorphological Landscapes,$x2213-2090 300 $aDescription based upon print version of record. 311 $a94-017-8019-6 320 $aIncludes bibliographical references and index at the end of each chapters. 327 $aFrom the Contents: Geological and tectonic background -- Climate past and present -- Long-term geomorphological history -- Geomorphological regions -- Brandberg -- Brukkaros Volcano -- Cunene River, the oshanas, bedrock channel and major falls -- Erongo Mountains: Ameib, Bulls Parties, Phillips Cave -- Etendeka Plateau and the Messum Crater -- Etosha Pan -- Gamsberg Plateau -- Giant?s Playground dolerite complex -- Gobabeb and the Central Namib inselbergs and weathering phenomena -- Kolmanskop barchans -- Kuiseb Canyon, Gravel Plains, Calcretes and Gramadullas -- Naukluft Tufsa. 330 $aThe landscapes of Namibia are of world-class quality in beauty, diversity and interest. This book provides the first ever overview of the most important of these landscapes, explains why they look as they do, and evaluates why they are of note. Writing from a geomorphological perspective, the authors introduce the key processes and controls which influence landscape and landform development in Namibia. Geological and tectonic background, climate now and in the past, vegetation and animals (including humans) are all identified as crucial factors influencing the landscape of Namibia today. The book presents twenty one richly-illustrated case studies of the most significant landscapes of Namibia, ranging from the iconic Etosha Pan at the heart of the biggest wildlife conservation area in the north, to the famous dunes and ephemeral river at Sossus Vlei in the heart of the Namib desert. Each case study also contains a full list of the key references to the scientific work on that landscape. The authors provide an assessment of the current state of conservation of these landscapes, and their importance to tourism. The book is recommended reading for anyone with a professional or amateur interest in the spectacular and intriguing landscapes of this part of southern Africa. It provides a useful handbook for those travelling around Namibia, and an invaluable reference guide for those interested in how landscapes develop and change. 410 0$aWorld Geomorphological Landscapes,$x2213-2090 606 $aGeomorphology 606 $aPhysical geography 606 $aEnvironmental geology 606 $aEnvironmental geology 606 $aGeomorphology$3https://scigraph.springernature.com/ontologies/product-market-codes/J16010 606 $aPhysical Geography$3https://scigraph.springernature.com/ontologies/product-market-codes/J16000 606 $aGeoecology/Natural Processes$3https://scigraph.springernature.com/ontologies/product-market-codes/U21006 615 0$aGeomorphology. 615 0$aPhysical geography. 615 0$aEnvironmental geology. 615 0$aEnvironmental geology. 615 14$aGeomorphology. 615 24$aPhysical Geography. 615 24$aGeoecology/Natural Processes. 676 $a111.85 700 $aGoudie$b Andrew$4aut$4http://id.loc.gov/vocabulary/relators/aut$0275815 702 $aViles$b Heather$4aut$4http://id.loc.gov/vocabulary/relators/aut 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910299448203321 996 $aLandscapes and Landforms of Namibia$92525806 997 $aUNINA