989 resultados para Ballou, Hosea, 1771-1852.


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针对基于Web的通信存在的弱点,提出了安全Web服务器的概念,并以此为目标,提出并实现了一种基于BLP形式化模型的安全Web服务器系统。

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反射地震方法一般用于地下地质结构的探测.本文采用南海东北部的一条地震测线

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大容量低频组合气枪震源已成功应用于南海北部海陆联测实验及陆上水库实验

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We report on the first study of N+ -implanted silicon on insulator by energy-filtered imaging using an Opton electron microscope CEM 902 equipped Castaing-Henry electron optical system as a spectrometer. The inelastic images, energy window set at DELTA-E = 16 eV and DELTA-E = 25 eV according to plasmon energy loss of crystal Si and of silicon nitride respectively, give much structure information. The interface between the top silicon layer and the upper silicon nitride layer can be separated into two sublayers.

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