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ADJUSTMENT OF WIND AND PRESSURE FIELDS IN THE BOUNDARY LAYER
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作者 Xu Yinzi Wu Rongsheng Department of Atmospheric Sciences,Nanjing University,Nanjing 《Acta meteorologica Sinica》 SCIE 1990年第1期27-37,共11页
The vertical transport of mass at the top of the boundary layer is considered as a link between the boundary layer and free atmosphere.The adjustment of the wind and pressure fields in the boundary layer is studied un... The vertical transport of mass at the top of the boundary layer is considered as a link between the boundary layer and free atmosphere.The adjustment of the wind and pressure fields in the boundary layer is studied under the consideration of the interaction between the boundary layer and free atmosphere.The vertical motion at the top of the boundary layer is evaluated.The results show that the distinguished differ- ences of the present results from classical Ekman layer do exist and they are discussed in the paper. 展开更多
关键词 PBL ADJUSTMENT OF WIND AND PRESSURE FIELDS IN THE BOUNDARY layer
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High contrast ratio,high uniformity multiple quantum well spatial light modulators
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作者 黄寓洋 刘惠春 +7 位作者 Wasilewski Z R Buchanan M Laframboise S R 杨晨 崔国新 边历峰 杨辉 张耀辉 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2010年第3期62-65,共4页
Our latest research results on GaAs-A1GaAs multiple quantum well spatial light modulators are presented. The thickness uniformity of the epitaxial layers across the 3-inch wafer grown by our molecular beam epitaxy is ... Our latest research results on GaAs-A1GaAs multiple quantum well spatial light modulators are presented. The thickness uniformity of the epitaxial layers across the 3-inch wafer grown by our molecular beam epitaxy is better than 0.1% and the variation of cavity resonance wavelength within the wafer is only 0.9 nm. A contrast ratio (CR) of 102 by varying bias voltage from 0 to 6.7 V is achieved after fine tuning the cavity by etching an adjust layer. Both theoretical and experimental results demonstrate that incorporating an adjust layer is an effective tuning method for obtaining high CR. 展开更多
关键词 spatial light modulator multiple quantum well UNIFORMITY contrast ratio adjust layer matching condition
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