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Chinese Academy of Sciences Institutional Repositories Grid
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Study on surface fitting algorithm applied in manufacturing of CFETR VV 期刊论文  OAI收割
FUSION ENGINEERING AND DESIGN, 2021, 卷号: 170
作者:  
Fan, Xiaosong;  Gu, Yongqi;  Ji, Haibiao;  Zheng, Yuanyang;  Liu, Zhihong
  |  收藏  |  浏览/下载:38/0  |  提交时间:2021/08/30
Calibration method of instrument line shape for infrared radiometer 期刊论文  OAI收割
ACTA PHYSICA SINICA, 2021, 卷号: 70
作者:  
Sun Yong-Feng;  Xu Liang;  Shen Xian-Chun;  Wang Yu-Hao;  Xu Han-Yang
  |  收藏  |  浏览/下载:38/0  |  提交时间:2021/08/30
Three-dimensional thermal weight function method for the interface crack problems in bimaterial structures under a transient thermal loading 期刊论文  OAI收割
JOURNAL OF THERMAL STRESSES, 2016, 卷号: 39, 期号: 4, 页码: 371-385
作者:  
Wu, Huaping;  Li, Long;  Chai, Guozhong;  Song F(宋凡);  Kitamura, Takayuki
收藏  |  浏览/下载:28/0  |  提交时间:2017/12/18
Classification of hyperspectral image based on SVM optimized by a new particle swarm optimization (EI CONFERENCE) 会议论文  OAI收割
2012 2nd International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2012, June 1, 2012 - June 3, 2012, Nanjing, China
作者:  
Gao X.;  Yu P.;  Yu P.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
Support Vector Machine (SVM) is used to classify hyperspectral remote sensing image in this paper. Radial Basis Function (RBF)  which is most widely used  is chosen as the kernel function of SVM. Selection of kernel function parameter is a pivotal factor which influences the performance of SVM. For this reason  Particle Swarm Optimization (PSO) is provided to get a better result. In order to improve the optimization efficiency of kernel function parameter  firstly larger steps of grid search method is used to find the appropriate rang of parameter. Since the PSO tends to be trapped into local optimal solutions  a weight and mutation particle swam optimization algorithm was proposed  in which the weight dynamically changes with a liner rule and the global best particle mutates per iteration to optimize the parameters of RBF-SVM. At last  a 220-bands hyperspectral remote sensing image of AVIRIS is taken as an experiment  which demonstrates that the method this paper proposed is an effective way to search the SVM parameters and is available in improving the performance of SVM classifiers. 2012 IEEE.  
A local feature based simplification method for animated mesh sequence (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Computer Engineering and Technology, ICCET 2010, April 16, 2010 - April 18, 2010, Chengdu, China
作者:  
Wang B.;  Wang B.;  Zhao J.;  Zhang S.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
Although animated meshes are frequently used in numerous domains  only few works have been proposed until now for simplifying such data. In this paper  we propose a new method for generating progressive animated models based on local feature analysis and deformation area preservation. We propose the use of solid angle and height value for a non-hyperbolic vertex to define the local feature parameter. This local factor is embedded to the vertex quadric error matrix when calculating the edge collapse cost. In order to preserve the areas with large deformation  we add deformation degree weight to the aggregated quadric errors when computing the unified edge contraction sequence. Finally  a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast  easy to implement  and as a result good quality dynamic approximations with well-preserved fine details can be generated at any given frame. 2010 IEEE.  
Miniaturize photoelectric stable platform (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China
Xue W.-Q.; Wang Y.-Y.; Dai M.
收藏  |  浏览/下载:79/0  |  提交时间:2013/03/25
In order to reduce the size and weight of the gimbal in a traditional stable platform and correct the disadvantage in size of the payload  the paper first improves the gimbal which is an important component of a stable photoelectric platform  that also is an important factor in affecting the size and weight of a stability platform. In this paper  a closed-form solution of 3-DOF manipulator is designed according mechanical arm design principles. This manipulator is formed by a three joint axes whose extended line is intersected at one point. A standard orthogonal coordinate system is set up for each rod in the manipulator. And then  rotation transformation matrix expression is obtained. At last in this paper  the manipulator arm-shaped method for solving solutions is description  and also  each parameter of the gimbal is calculated when the photoelectric detection devices at bottom reach the expected position. Test results show that the photoelectric stability platform with gimbal we designed is smaller  lighter and simpler than that traditional. Also  the packaging and size of the photoelectric will not be affected with this open structure. 2010 IEEE.  
A new algorithm to approximate deforming models based on torsion detection (EI CONFERENCE) 会议论文  OAI收割
2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010, September 23, 2010 - September 25, 2010, Chengdu, China
作者:  
Zhang S.;  Wang G.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
Semi-weight function method on computation of stress intensity factors in dissimilar materials 期刊论文  OAI收割
Applied Mathematics and Mechanics (English Edition), 2004, 卷号: 25, 期号: 11, 页码: 1241-1248
作者:  
Ma KP(马开平);  Liu CT(柳春图)
收藏  |  浏览/下载:581/27  |  提交时间:2009/08/03