中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Suitability of revision to MUSLE for estimating sediment yield in the Loess Plateau of China SCI/SSCI论文  OAI收割
2016
作者:  
Luo Y.;  Yang, S. T.;  Liu, X. Y.;  Liu, C. M.;  Zhang, Y. C.
  |  收藏  |  浏览/下载:22/0  |  提交时间:2017/11/09
HER2 in gastric cancer: Comparative analysis of three different antibodies using whole-tissue sections and tissue microarrays 期刊论文  OAI收割
WORLD JOURNAL OF GASTROENTEROLOGY, 2013, 卷号: 19
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  |  收藏  |  浏览/下载:18/0  |  提交时间:2020/10/26
Distribution of gyroscope accuracy parameters for E-O stabilization platform (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.;  Jiang H.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
E-O stabilization platform performance is partly decided by gyroscope precision  so it is important to choose a gyroscope with proper accuracy for an E-O stabilization platform. Based on the method of using a gyroscope in practice  gyroscope error model is established. With the gyroscope error model gyroscope accuracy parameters  that is bias repeatability  bias stability  scale factor  scale factor nonlinearity  output noise and bandwidth  are separately analyzed. According to the concretely required performance indices for an E-O platform  means of distribution of gyroscope accuracy parameters is proposed. A MEMS gyroscope is tested to get the parameters. Bias stability of the gyroscope is 0.08 /s while the bandwidth is 60 Hz. Output noise both at zero input and at nonzero input is analyzed by means of PSD to get the result that nonzero output noise is higher than zero output noise. Frequency response result of the gyroscope is dealt by means of correlation analysis. With all the tested result and the method of distribution of gyroscope accuracy parameters  it is clear that how the gyroscope errors works in an E-O servo system. The principle of distribution of gyroscope accuracy parameters is helpful for choosing appropriate gyroscope for an E-O platform. 2011 IEEE.  
Study on the influence and disposal method of the micro-cracks of optical components (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Xuan B.;  Xie J.-J.;  Xie J.-J.;  Zhang H.;  Zhang H.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
Micro-crack is one of the most effective factor to the intensity and service life of optical components. Owing to the micro-crack on surface  actual strength of optical components is reduced severely  even less than ten-percent of its theoretical strength. According to fracture mechanics  the mechanisms of the formation and propagation of micro-crack and the growth theory of sub-critical micro-crack are discussed in the paper firstly. Based on practice  an on-line test method disposing etching holes-the molecule-infiltrating method and the principles of acid-etching method disposing micro-crack are described. Followed by the demolishing mechanism of abrasives and a more reasonable removal redundancy of fine-grinding and polishing during  optical production is given by using abrasives in different-size orderly. 2009 SPIE.