中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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An overview of contour detection approaches 期刊论文  OAI收割
International Journal of Automation and Computing, 2018, 卷号: 15, 期号: 6, 页码: 656-672
作者:  
Gong XY(宫新一);  Hu Su;  De Xu;  Zhengtao Zhang;  Fei Shen
  |  收藏  |  浏览/下载:54/0  |  提交时间:2019/05/08
An Overview of Contour Detection Approaches 期刊论文  OAI收割
International Journal of Automation and Computing, 2018, 卷号: 15, 期号: 6, 页码: 656-672
作者:  
Xin-Yi Gong;  Hu Su;  De Xu;  Zheng-Tao Zhang;  Fei Shen
  |  收藏  |  浏览/下载:14/0  |  提交时间:2021/02/23
氮磷钾对黄芩生长与有效成分累积的影响 期刊论文  OAI收割
中国土壤与肥料, 2012, 期号: 02, 页码: 56-61
曹鲜艳; 徐福利; 王渭玲; 王静; 黄淑华; 张晓虎; 何军
收藏  |  浏览/下载:38/0  |  提交时间:2014/08/27
Numerical simulation on efficient spinning technology based on multi-point adjusting principle (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011, April 9, 2011 - April 11, 2011, Guilin, China
Gong X. P.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
In order to realize high efficiency and flexible manufacturing for rotary surfaces  equivalent stress in sheet metal's center region and bendable rollers active region exceeds yield stress  efficient spinning technology (EST) is researched. It is the combination of multi-point forming and traditional spinning. Principle of EST is described  and plastic deformation is generated  traditional spinning method is compared with it  experimental result accords with simulation result. Feasibility of EST is validated by simulation and experimental results. (2011) Trans Tech Publications.  and characteristics of it are analyzed. Finite element analysis (FEA) model of disc-shape part is established  EST process is analyzed  equivalent stress and plastic strain distributions are analyzed. EST equipment is developed  and the experiments are made. Results indicate: EST process consists of four stages  
Laser pulse coded signal frequency measuring device based on DSP and CPLD (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, May 24, 2011 - May 26, 2011, Beijing, China
作者:  
Zhang H.-B.;  Wang T.-F.;  Guo R.-H.;  Li Y.;  Li Y.
收藏  |  浏览/下载:38/0  |  提交时间:2013/03/25
Laser pulse code is an anti-jamming measures used in semi-active laser guided weapons. On account of the laser-guided signals adopting pulse coding mode and the weak signal processing  it need complex calculations in the frequency measurement process according to the laser pulse code signal time correlation to meet the request in optoelectronic countermeasures in semi-active laser guided weapons. To ensure accurately completing frequency measurement in a short time  it needed to carry out self-related process with the pulse arrival time series composed of pulse arrival time  calculate the signal repetition period  and then identify the letter type to achieve signal decoding from determining the time value  number and rank number in a signal cycle by Using CPLD and DSP for signal processing chip  designing a laser-guided signal frequency measurement in the pulse frequency measurement device  improving the signal processing capability through the appropriate software algorithms. In this article  we introduced the principle of frequency measurement of the device  described the hardware components of the device  the system works and software  analyzed the impact of some system factors on the accuracy of the measurement. The experimental results indicated that this system improve the accuracy of the measurement under the premise of volume  real-time  anti-interference  low power of the laser pulse frequency measuring device. The practicality of the design  reliability has been demonstrated from the experimental point of view.  
Control strategies and error compensation methods of high precision gyro stabilized platform (EI CONFERENCE) 会议论文  OAI收割
30th Chinese Control Conference, CCC 2011, July 22, 2011 - July 24, 2011, Yantai, China
Deng K.; Cong S.; Shen H.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
Retrospect and prospect of active principles from Chinese herbs in the treatment of dementia 期刊论文  OAI收割
ACTA PHARMACOLOGICA SINICA, 2010, 卷号: 31, 期号: 6, 页码: 649-664
作者:  
Wang, Ying;  Huang, Lu-qi;  Tang, Xi-can;  Zhang, Hai-yan
  |  收藏  |  浏览/下载:20/0  |  提交时间:2019/01/08