phytochemicals 发表于 2025-3-23 11:03:15
Area-Species Incidence RecordingA low-cost method for collecting extensive data from many bird-watchers at a controlled access site is described. The constraints on data collection are discussed and the uses that might be made of the data are outlined.滑动 发表于 2025-3-23 17:41:54
Are Hunting Losses of Young Black Ducks (,) Too High?ess than that of young Mallard ringed throughout Canada in 1968–1981, 51.8% ± 0.62%, but not than those of young Mallard ringed in Ontario, 47.8% ± 1.26% and Quebec, 37.9% ± 2.53%. The corresponding kill-rates were 24.8% for Black Ducks and 24.2% for Mallard ringed in Ontario, 25.6% for Black DucksRecess 发表于 2025-3-23 20:13:18
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Philip M. North,Byron J. T. Morgantodetectors and finishing with homodyne and heterodyne loops.Starting with a historical overview, presenting analog, digital, andoptical PLLs, discussing phase noise analysis, and includingcircuits/algorithms for data synchronization, this volume contains newtechniques being used in this field. Highlights of 978-1-4757-8388-9978-0-306-47314-2Monocle 发表于 2025-3-24 08:00:13
s and finishing with homodyne and heterodyne loops.Starting with a historical overview, presenting analog, digital, andoptical PLLs, discussing phase noise analysis, and includingcircuits/algorithms for data synchronization, this volume contains newtechniques being used in this field. Highlights ofstressors 发表于 2025-3-24 12:14:38
http://reply.papertrans.cn/88/8768/876754/876754_17.pngDAMN 发表于 2025-3-24 18:34:13
Jocelyn R. Dales and finishing with homodyne and heterodyne loops.Starting with a historical overview, presenting analog, digital, andoptical PLLs, discussing phase noise analysis, and includingcircuits/algorithms for data synchronization, this volume contains newtechniques being used in this field. Highlights oftextile 发表于 2025-3-24 20:34:12
Keith V. Darbywing topics:..- The transmitter and receiver for phase-modulated coherent lightwave systems..- Method for performance analysis of phase-modulated optical signals..- Direct-detection DPSK signal with fiber nonlinearities, degraded by nonlinear phase noise and intrachannel effects..- Wavelength-divisiCommemorate 发表于 2025-3-25 00:55:28
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