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X-ray image defect recognition method for pipe weld based on improved convolutional neural network 期刊论文
Hanjie Xuebao/Transactions of the China Welding Institution, 2020, 卷号: 41, 期号: 1, 页码: 7-11
作者:  Fan, Ding;  Hu, Ande;  Huang, Jiankang;  Xu, Zhenya;  Xu, Xu
收藏  |  浏览/下载:26/0  |  提交时间:2020/11/14
Cramér Rao Lower Bound Derivation of Parameter Estimation for Hypersonic Platform SAR-GMTI 会议论文
International Conference on Signal Processing Proceedings, ICSP, 2018-08-12
作者:  Zhou, R.;  Zhao, Q.;  Zhang, L.;  Sun, J.
收藏  |  浏览/下载:65/0  |  提交时间:2019/12/30
Investigation on Stretch Forming Process of Thick Double-Curved Aluminium Alloy component 会议论文
Journal of Physics: Conference Series
作者:  Fang, T.;  Xiaoxing, L.;  Yulong, G.
收藏  |  浏览/下载:5/0  |  提交时间:2019/12/30
Research on Reduction Method for Measurement by Hot Wire Anemometer on Non-Calibrated Conditions [热线风速仪非标定工况下测试修正方法研究] 期刊论文
Tuijin Jishu/Journal of Propulsion Technology, 2018, 卷号: 39, 页码: 2094-2101
作者:  Zhang, Y.-W.;  Quan, Y.-K.
收藏  |  浏览/下载:7/0  |  提交时间:2019/12/30
A parameter correction algorithm for PTZ camera based on parameter refinement strategy and hierarchical feature matching 期刊论文
Guangdianzi Jiguang/Journal of Optoelectronics Laser, 2015, 卷号: 26, 期号: [db:dc_citation_issue], 页码: 1997-2007
作者:  Cui, Zhi-Gao;  Li, Ai-Hua;  Wang, Tao;  Xu, Bin;  Cai, Yan-Ping
收藏  |  浏览/下载:6/0  |  提交时间:2019/12/02
Interpolation algorithms based on Rife-Vincent window for discrete Fourier transforms of damped signals 期刊论文
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2015, 卷号: 51, 期号: [db:dc_citation_issue], 页码: 1-7
作者:  Diao, Ruipeng;  Meng, Qingfeng;  Fan, Hong
收藏  |  浏览/下载:5/0  |  提交时间:2019/12/02
Structural design of primary mirror subassembly for space telescope (EI CONFERENCE) 会议论文
2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan
Xu H.
收藏  |  浏览/下载:49/0  |  提交时间:2013/03/25
In order to design a large aperture primary mirror with the diameter of 1150 mm  the parameters impacting on gravity deformation of the mirror were analyzed and discussed in detail  including material selection  diameter-thickness ratio  the number of the support points  location selection and lightweight structure  etc. A novel space mirror structure system was put forward  and its back was opened and supported by six points on back. The dynamic and static and thermal characteristics were analyzed based on the finite element method. Analysis results showed the surface figure accuracy reached to RMS 14.5nm under the action of gravity load along the optical axis direction and the first-order natural frequency was 214Hz which met to the designed indexes requirements. (2013) Trans Tech Publications  Switzerland.  
Structural design of large aperture rectangular mirror for space telescope (EI CONFERENCE) 会议论文
2nd International Conference on Civil Engineering and Transportation, ICCET 2012, October 27, 2012 - October 28, 2012, Guilin, China
Li Z.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
Structural design of large aperture mirror is one of the key technologies for space telescope development. To meet the requirements of high stiffness  strength and thermal dimensional stability  some factors such as support scheme  materials selection  lightweight design and flexible support design were taken into account. The three supports location of the mirror was determined according to the modal analytical solution. By adjusting the parameters of flexure hinge  influences of gravity  assembly stress and thermal stress on the mirror were reduced obviously. Finite element analysis (FEA) results indicate that the surface accuracy reach to rms10.2nm and 10.8nm under the gravity along optical axis direction and 5C uniform temperature rise respectively  the fundamental frequency of the mirror component is 268Hz. Dynamics test shows that the first order natural frequency is 256Hz  which shows an error less than 5% compared to FEA results. (2013) Trans Tech Publications  Switzerland.  
An iterative interpolation FFT method based on long-range leakage compensation 期刊论文
Zhendong yu Chongji/Journal of Vibration and Shock, 2013, 卷号: 32, 期号: [db:dc_citation_issue], 页码: 1-6
作者:  Diao, Rui-Peng;  Meng, Qing-Feng
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/03
Analyzing the Accuracy of the Binocular Stereo Locating System for Meridian Visualization 会议论文
作者:  Lin, Xuehua;  Chen, Xin
收藏  |  浏览/下载:3/0  |  提交时间:2019/11/21


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