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浏览/检索结果: 共11条，第1-10条 帮助

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Research on rapid concentration field reconstruction method for two-dimensional geometric paths based on laser absorption spectroscopy 期刊论文  OAI收割
MEASUREMENT, 2025, 卷号: 241
作者:  Li, Qi;  Tang, Qixing;  Zhang, Yujun;  Gao, Hua;  Rao, Yuan
  |  收藏  |  浏览/下载：51/0  |  提交时间：2024/11/20
A Novel Method for Recognizing Space Radiation Sources Based on Multi-Scale Residual Prototype Learning Network 期刊论文  OAI收割
SENSORS, 2023, 卷号: 23, 期号: 10, 页码: 25
作者:  Liu, Pengfei;  Guo, Lishu;  Zhao, Hang;  Shang, Peng;  Chu, Ziyue
  |  收藏  |  浏览/下载：16/0  |  提交时间：2023/12/13
Regional Differences and Influential Factors of Open Public Space in Chinese Cities Based on Big Earth Data 期刊论文  OAI收割
SUSTAINABILITY, 2020, 卷号: 12, 期号: 6, 页码: 16
作者:  Wang, Penglong;  Ma, Yanyan;  Zhao, Xueyan;  Wang, Bao;  Wang, Jianghao
  |  收藏  |  浏览/下载：29/0  |  提交时间：2020/05/19
An airSea manta-ray robot in 5G OGCE 会议论文  OAI收割
Beijing, China, March 22-24, 2019
作者:  Yuan MZ(苑明哲);  Lv Y(吕毅);  Wang ZF(王忠锋);  Lv Z(吕志)
  |  收藏  |  浏览/下载：143/0  |  提交时间：2019/08/03
Assessing the changes in land use and ecosystem services in Changzhou municipality, Peoples' Republic of China, 1991-2006 期刊论文  OAI收割
ECOLOGICAL INDICATORS, 2014, 卷号: 42, 期号: 1, 页码: 95-103
Li, F.; Ye, Y. P.; Song, B. W.; Wang, R. S.; Tao, Y.
收藏  |  浏览/下载：30/0  |  提交时间：2015/03/23
关联开放数据在图书情报服务的应用逻辑分析 期刊论文  OAI收割
现代图书情报技术, 2013, 卷号: Z, 期号: 228, 页码: 13-18
顾立平(Ku Liping)
收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25
Application of precision harmonic gear drive in focusing mechanism of space camera (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
A kind of precision harmonic gear drive in the focusing mechanism of space camera is studied  which adopt external meshing complex wave transmission mode. Wave generator is combined with an elliptic cam and a flexible bearing around it. Flexspline is a structure of single wave with the same teeth. The output shaft is supported by a single cross-roller bearing. Ball screws connected the output shaft translate the rotational motion to the linear motion  and drive the focusing mirror repeated moving along the linear guide. The output rigid wheel is connected with absolute encoder to detect displacement of focusing movement. It has the characteristics of big transmission ratio  high precision  compact structure  high efficiency and smooth running etc. According to the practical application of this harmonic gear drive in the space camera  the location relationship between the displacement of focusing structure and the focal plane movement is derived  and the system error is analyzed  its accuracy is tested with the open-loop control method. Experimental results show that transmission ratio of the instrument is 1:70  repeated positional accuracy is 2m  which meet the requirements for use. 2010 SPIE.  
A digital open-loop Doppler processing prototype for deep-space navigation 期刊论文  OAI收割
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2009, 卷号: 52, 期号: 12, 页码: 1849-1857
作者:  
收藏  |  浏览/下载：52/0  |  提交时间：2015/08/25
A digital open-loop Doppler processing prototype for deep-space navigation 期刊论文  OAI收割
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2009, 卷号: 52, 期号: 12, 页码: 1849-1857
作者:  Jian NianChuan;  Shang Kun;  Zhang SuJun;  Wang MingYuan;  Shi Xian
收藏  |  浏览/下载：54/0  |  提交时间：2010/07/30
A digital open-loop Doppler processing prototype for deep-space navigation 期刊论文  OAI收割
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2009, 卷号: 52, 期号: 12, 页码: 1849
作者:  Jian NianChuan;  Shang Kun;  Zhang SuJun;  Wang MingYuan;  Shi Xian
  |  收藏  |  浏览/下载：19/0  |  提交时间：2021/12/06