LEADER 00839nam0 2200277 450 001 000020541 005 20090212112305.0 010 $a0198533527 100 $a20081212d1979----km-y0itay50------ba 101 0 $aeng 102 $aGB 105 $aa-------001yy 200 1 $aIdeas of space$eEuclidean, non-Euclidean, and relativistic$fJeremy Gray 210 $aOxford$cClarendon press$d1979 215 $aIX, 224 p.$cill.$d23 cm 500 10$aIdeas of space$947530 610 1 $aGeometria non euclidea 610 1 $aGeometria euclidea 676 $a516$v21$9Geometria 700 1$aGray,$bJeremy J.$f<1947- >$053883 801 0$aIT$bUNIPARTHENOPE$c20081212$gRICA$2UNIMARC 912 $a000020541 951 $aG 516 /2$bG 256$cDSA$d2008 951 $aS 516/2$bS A, 1064$cDSA$d2009 996 $aIdeas of space$947530 997 $aUNIPARTHENOPE LEADER 03391nam 2200565 450 001 9910807664203321 005 20221206095449.0 010 $a1-60807-119-7 035 $a(CKB)2560000000254517 035 $a(EBL)1675144 035 $a(SSID)ssj0001437323 035 $a(PQKBManifestationID)12606496 035 $a(PQKBTitleCode)TC0001437323 035 $a(PQKBWorkID)11461053 035 $a(PQKB)11513138 035 $a(Au-PeEL)EBL1675144 035 $a(OCoLC)948810917 035 $a(CaBNVSL)mat09100144 035 $a(IEEE)9100144 035 $a(MiAaPQ)EBC1675144 035 $a(EXLCZ)992560000000254517 100 $a20200730d2014 uy 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aUnderstanding quartz crystals and oscillators /$fRamo?n M. Cerda 210 1$aNorwood, Massachusetts :$cArtech House,$d[2014] 210 2$a[Piscataqay, New Jersey] :$cIEEE Xplore,$d[2014] 215 $a1 online resource (325 p.) 225 1 $aArtech House microwave library 300 $aDescription based upon print version of record. 311 $a1-60807-118-9 320 $aIncludes bibliographical references and index. 327 $aUnderstanding Quartz Crystalsand Oscillators; Contents; Preface; Acknowledgments; 1 Quartz Crystals; 1.1 Introduction; 1.2 Mother Nature Used Quartz First; 1.3 The Curie Brothers; 1.4 Piezoelectricity; 1.5 Quartz; 1.6 Left-Handed and Right-Handed Quartz; 1.7 Quartz Is Anisotropic; 1.8 A Timeline of Quartz Crystals and Oscillators; 1.9 Important Definitions; 1.9.1 Time; 1.9.2 Second; 1.9.3 Frequency; 1.9.4 Nominal Frequency; 1.9.5 Clock; 1.9.6 Room Frequency or 25°C Frequency; 1.9.7 Fractional Frequency; 1.9.8 Allan Deviation; 1.9.9 Accuracy, Precision, and Stability; 1.9.10 Accuracy. 327 $a1.9.11 Precision1.9.12 Stability; 1.9.13 Frequency Stability; 1.9.14 Short-Term Frequency Stability; 1.9.15 Medium-Term Frequency Stability; 1.9.16 Long-Term Frequency Stability; 1.9.17 Aging and Drift; 1.9.18 Ambient Temperature; 1.9.19 Frequency-Temperature Stability (Frequency Versus Temperature Stability); 1.9.20 Tolerance ; 1.9.21. 330 $a"Quartz, unique in its chemical, electrical, mechanical, and thermal properties, is used as a frequency control element in applications where stability of frequency is an absolute necessity. Without crystal controlled transmission, radio and television would not be possible in their present form. The quartz crystals allow the individual channels in communication systems to be spaced closer together to make better use of one of most precious resources -- wireless bandwidth. This book describes the characteristics of the art of crystal oscillator design, including how to specify and select crystal oscillators. While presenting various varieties of crystal oscillators, this resource also provides microwave engineers with MathCad and Genesys simulations."--$cUnedited summary from book. 410 0$aArtech House microwave library. 606 $aOscillators, Crystal 615 0$aOscillators, Crystal. 676 $a621.381533 700 $aCerda$b Ramo?n M.$01622953 801 0$bCaBNVSL 801 1$bCaBNVSL 801 2$bCaBNVSL 906 $aBOOK 912 $a9910807664203321 996 $aUnderstanding quartz crystals and oscillators$93957081 997 $aUNINA LEADER 01407nam 2200409Ka 450 001 9910696893503321 005 20250409163023.0 035 $a(CKB)5470000002381943 035 $a(OCoLC)234316965 035 $a(EXLCZ)995470000002381943 100 $a20080721d2008 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aProfile of hired farmworkers $ea 2008 update /$fWilliam Kandel 205 $a2008 update. 210 1$a[Washington, D.C.] :$cU.S. Dept. of Agriculture, Economic Research Service,$d[2008] 215 $aiv, 59 pages $cdigital, PDF file 225 1 $aEconomic research report ;$vno. 60 300 $aTitle from title screen (viewed on July 21, 2008). 300 $a"July 2008." 320 $aIncludes bibliographical references (pages 42-48). 517 $aProfile of hired farmworkers 606 $aAgricultural laborers$zUnited States$vStatistics 606 $aAgricultural wages$zUnited States$vStatistics 608 $aStatistics.$2lcgft 615 0$aAgricultural laborers 615 0$aAgricultural wages 700 $aKandel$b William$01354351 712 02$aUnited States.$bDepartment of Agriculture.$bEconomic Research Service. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910696893503321 996 $aProfile of hired farmworkers$93482993 997 $aUNINA