中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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基于统计实验的水文序列一致性测度比较分析 期刊论文  OAI收割
水力发电学报, 2020, 卷号: 39, 期号: 12, 页码: 47
作者:  
牛静怡;  谢平;  吴林倩;  桑燕芳;  吴子怡
  |  收藏  |  浏览/下载:38/0  |  提交时间:2021/03/15
Experimental investigations of the evolution of step-pools in rills with heterogeneous soils in Yuanmou Dry-Hot Valley, SW China 期刊论文  OAI收割
CATENA, 2020, 卷号: 194, 页码: 104690
作者:  
Deng Qingchun;  Liu Hui;  Cheng Weihua;  Yang Haiqing;  Liu Gangcai
  |  收藏  |  浏览/下载:33/0  |  提交时间:2020/10/23
The research on statistical properties of TDI-CCD imaging noise (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu Y.-Y.; Shen X.-H.; He G.-X.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
TDI-CCD can improve the sensitivity of space camera without any degradation of spatial resolution which is widely used in aerospace imaging devices. The article describes the basic working principle and application characteristics of TDI-CCD devices  analyses the composition of TDI-CCD imaging noise  and propose a new method to analyze TDI-CCD imaging noise with statistical probability distribution. In order to estimate the distribution of gray values affect by noise we introduced the concept of skewness and kurtosis. We design an experiment using constant illumination light source  take image with TDI-CCD working at different stage such as stage 16  stage 32  stage 48  stage 64 and stage 96  analyse the characteristics of image noise with the method we proposed  experimental results show that the gray values approximately meet normal distribution in large sample cases. 2011 SPIE.  
Optimization of nutritional conditions for nattokinase production by Bacillus natto NLSSE using statistical experimental methods 期刊论文  OAI收割
PROCESS BIOCHEMISTRY, 2005, 卷号: 40, 期号: 8, 页码: 2757-2762
作者:  
Liu, JG;  Xing, JM;  Chang, TS;  Ma, ZY;  Liu, HZ
收藏  |  浏览/下载:35/0  |  提交时间:2013/10/25