期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
DISTRIBUTION OF DISSOLVED AND PARTICULATE TRACE METALS IN ANOXIC SEAWATER, SAANICH INLET, B . C. CANADA 被引量:1
1
作者 詹滨秋 c.s.wong K.W.Johnson 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 1992年第1期75-83,共9页
This paper discusses the spatial and seasonal distribution character of dissolved and paniculate trace metals in the anoxic seawater of Saanich Inlet, B.C., Canada. The study showed that concentration of dissolved and... This paper discusses the spatial and seasonal distribution character of dissolved and paniculate trace metals in the anoxic seawater of Saanich Inlet, B.C., Canada. The study showed that concentration of dissolved and paniculate trace metals in anoxic seawater is closely related to (1) the concentration of H2S and the depth of the O2-H2S interface, (2) the exchange of seawater in Saanich Inlet with outside seawater, (3) biotic action, and (4) the flushing event. The study was based in part on the ratio between trace metals and nutrients. There was a steep change in the concentration of dissolved trace metals at the O2-H2S interface. The concentration of dissolved trace metals in the H2S-controlled zone was dependent on the H2S there. The suspended matter in Saanich Inlet comes from the Hero Strait seawater, phytoplankton production and resuspension of flushed-up sediments. The concentration of particulate trace metals was rather low in Saanich Inlet and tended to increase with depth. The total 展开更多
关键词 DISTRIBUTION TRACE metal seawater
下载PDF
All-Optical Wavelength Conversion with Amplitude Equalization and Pulse Shaping
2
作者 C.W.Chow c.s.wong H.K.Tsang 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期491-492,共2页
A dual-wavelength-injection-locked (DWIL) Fabry-Perot (FP) laser is used as an all-optical wavelength converter and regenerator. Regenerated pulses have narrower pulse-width of 37ps. Power penalty and extinction-ratio... A dual-wavelength-injection-locked (DWIL) Fabry-Perot (FP) laser is used as an all-optical wavelength converter and regenerator. Regenerated pulses have narrower pulse-width of 37ps. Power penalty and extinction-ratio improvement of 1.5dB and 4dB respectively were achieved. 展开更多
关键词 EDFA on in as of MODE FP All-Optical Wavelength Conversion with Amplitude Equalization and Pulse Shaping with DBM
原文传递
Pulse Generation by Mode-Beating in a Dual-Wavelength Injection-Locked Laser
3
作者 C.W.Chow c.s.wong H.K.Tsang 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期-,共2页
Generating of repetition-rate tunable optical pulses is achieved by mode-beating within a CW-operated Fabry-Perot laser. The repetition-rate was tunable from 6GHz to 32GHz and may be synchronized by a low frequency (5... Generating of repetition-rate tunable optical pulses is achieved by mode-beating within a CW-operated Fabry-Perot laser. The repetition-rate was tunable from 6GHz to 32GHz and may be synchronized by a low frequency (500MHz) optical input. 展开更多
关键词 MODE on as by Pulse Generation by Mode-Beating in a Dual-Wavelength Injection-Locked Laser FP in
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部