中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共9条,第1-9条 帮助

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利用 GIS MCDA 进行滑坡敏感性绘图 –以塔吉克斯坦的帕米尔山 脉 Sarez 湖为例 学位论文  OAI收割
北京: 中国科学院大学, 2019
作者:  
SAIDALIEV ISMOIL
  |  收藏  |  浏览/下载:44/0  |  提交时间:2021/12/10
Processes involved in the second-year warming of the 2015 El Nio event as derived from an intermediate ocean model 期刊论文  OAI收割
SCIENCE CHINA-EARTH SCIENCES, 2017, 卷号: 60, 期号: 9, 页码: 1601-1613
作者:  
Zhang RongHua;  Gao Chuan
  |  收藏  |  浏览/下载:24/0  |  提交时间:2018/01/11
Processes involved in the second-year warming of the 2015 El Nio event as derived from an intermediate ocean model CNKI期刊论文  OAI收割
2017
作者:  
ZHANG RongHua;  GAO Chuan
  |  收藏  |  浏览/下载:7/0  |  提交时间:2024/12/18
Energy and exergy analyses of finishing process in cotton textile production 期刊论文  OAI收割
international journal of exergy, 2015, 卷号: 18, 期号: 3
作者:  
Yin, Hua;  Guo, Huafang
收藏  |  浏览/下载:37/0  |  提交时间:2016/12/01
Thermal analyses of LiFePO4/graphite battery discharge processes 期刊论文  OAI收割
journal of power sources, 2013, 卷号: 243, 页码: 181-194
作者:  
Jiang, Fangming;  Peng, Peng;  Sun, Yiqiong
收藏  |  浏览/下载:35/0  |  提交时间:2016/01/07
Study on the servo system of large telescope based on the internal model pid control strategy (EI CONFERENCE) 会议论文  OAI收割
IEEE 2011 10th International Conference on Electronic Measurement and Instruments, ICEMI 2011, August 16, 2011 - August 18, 2011, Chengdu, China
Li H.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
Mid-frequency surface error test with a Foucault apparatus (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Li J.;  Li J.;  Xuan B.;  Li J.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
Testing of mid-frequency surface error is of the first importance for fast optics  especially for large aperture aspherics. Foucault test plays a dominant role for surface error inspection before the digital interferometer age  but it seems to have faded out these days because no quantitative results turn out. However  an interferometer with high resolution CCDs is either unavailable or unaccessible in the process of manufacture. As its advantages are realized and recognized for the second time  Foucault test is going back to the stage again. A new theory of calculating the contrast of the shadow pattern of Foucault test is put forward in this paper and some modifications are discussed upon the analyses of the limitation of traditional Foucault apparatus. A paraboloidal mirror was fabricated and tested by the modified Foucault apparatus whose effect has been proved to be great. The methods of controlling mid-frequency error are described in the other paper at this conference- "Multi-mode combine manufacturing technology for large aperture aspheric mirrors"1.  
Study of microsphere plate photomultiplier tube (EI CONFERENCE) 会议论文  OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang X.;  Li Y.;  Li Y.;  Li Y.;  Li Y.
收藏  |  浏览/下载:42/0  |  提交时间:2013/03/25
The photomultiplier tube (PMT) that can work in different wavelength is an important detector device in remote sense technology. Microsphere plate using glass beads 50to 70m in diameter sintered together is the core component of the microsphere plate photomultiplier tube It is a novel two-dimension electron multiplier. The electrons gain for a single plate is about 1017 and do not have the phenomenon of ion-feedback. Furthermore the fabrication process is very easy. In this paper  much interest was put on the microsphere plate photomultiplier tube. Based on the analyses from the theory and the experiment result  we point out the key technology for fabricating PMT is how to obtain glass beads with narrow range in diameter and how to sinter the glass beads with a sufficient pylome. Factors affect the gradating technology and sintering process along with the solution to them is presented. In the last  the structure scheme and technological characteristic for fabricating microsphere plate photomultiplier tube were given. The pulse rising-time of MSP-PMT is below 400ps suitable to the detection of high-speed pulse. As easy to be fabricated and has great advantage over MCP multiplier in the ratio of performance to price  the microsphere plate photomultiplier tube is a promising dim-light detector.  
Study on color difference estimation method of medicine biochemical analysis (EI CONFERENCE) 会议论文  OAI收割
ICO20: Illumination, Radiation, and Color Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Zhou Y.;  Zhou F.;  Wang C.
收藏  |  浏览/下载:46/0  |  提交时间:2013/03/25
The biochemical analysis in medicine is an important inspection and diagnosis method in hospital clinic. The biochemical analysis of urine is one important item. The Urine test paper shows corresponding color with different detection project or different illness degree. The color difference between the standard threshold and the test paper color of urine can be used to judge the illness degree  therefore  it can be used in hospital  so that further analysis and diagnosis to urine is gotten. The color is a three-dimensional physical variable concerning psychology  the estimation method of color difference in urine test can have better precision and facility than the conventional test method with one-dimensional reflectance  calibrating organization and family  while reflectance is one-dimensional variable  it can make an accurate diagnose. The digital camera is easy to take an image of urine test paper and is used to carry out the urine biochemical analysis conveniently. On the experiment  so its application prospect is extensive.  the color image of urine test paper is taken by popular color digital camera and saved in the computer which installs a simple color space conversion (RGB &rarr XYZ &rarr L*a*b*) and the calculation software. Test sample is graded according to intelligent detection of quantitative color. The images taken every time were saved in computer  and the whole illness process will be monitored. This method can also use in other medicine biochemical analyses that have relation with color. Experiment result shows that this test method is quick and accurate