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浏览/检索结果: 共54条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 A novel damaged-based numerical manifold method to simulate the failure process of brittle rocks from damage evolution to crack initiation, propagation and coalescence 期刊论文  OAI收割 ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, 2023, 卷号: 155, 期号: -, 页码: 452 作者:  Cao, Yongsheng;  Yu, Qinglei;  Zhou, Guanglei;  Yu, Xianyang;  Xu, Xiaodong   |  收藏  |  浏览/下载：121/0  |  提交时间：2023/08/02 Numerical manifold method  Damage and fracture behavior  Heterogeneity  Crack initiation  Crack evolution technique   Advances in modeling, assessment, and prevention of geotechnical and geological disasters 期刊论文  OAI收割 FRONTIERS IN EARTH SCIENCE, 2022, 卷号: 10, 期号: -, 页码: - 作者:  Fu, Xiaodong;  Yang, Yongtao;  Wang, Min;  Zhang, Zetian   |  收藏  |  浏览/下载：6/0  |  提交时间：2023/08/02 geotechnical and geological disaster  mechanical property  modeling method  risk assessment  prevention technique   A visual and full-field method for detecting quench and normal zone propagation in HTS tapes 期刊论文  OAI收割 Superconductor Science and Technology, 2021, 卷号: 35, 期号: 2 作者:  Wang,Shudan;  Guan,Mingzhi;  Chen,Jiaxiang;  Wang,Xingzhe;  Zhou,Youhe   |  收藏  |  浏览/下载：58/0  |  提交时间：2022/01/18 HTS coated tape  quench and propagation  quench detection method  thermoelastic strain-rate  DIC full-field technique   A GENERAL TWO-LEVEL SUBSPACE METHOD FOR NONLINEAR OPTIMIZATION 期刊论文  OAI收割 JOURNAL OF COMPUTATIONAL MATHEMATICS, 2018, 卷号: 36, 期号: 6, 页码: 881-902 作者:  Chen, Chong;  Wen, Zaiwen;  Yuan, Yaxiang   |  收藏  |  浏览/下载：32/0  |  提交时间：2019/03/05 Nonlinear optimization  Convex and nonconvex problems  Subspace technique  Multigrid/multilevel method  Large-scale problems   Modeling the Earth's magnetosphere under the influence of solar wind with due northward IMF by the AMR-CESE-MHD model 期刊论文  OAI收割 SCIENCE CHINA-EARTH SCIENCES, 2015, 卷号: 58, 期号: 7, 页码: 1235-1242 作者:  Wang Juan;  Du AiMin;  Zhang Ying;  Zhang TieLong;  Ge YaSong   |  收藏  |  浏览/下载：18/0  |  提交时间：2017/12/07 numerical simulation  magnetosphere  magnetohydrodynamic model  adaptive mesh refinement technique  the space-time conservation element and solution element method   Modeling the Earth's magnetosphere under the influence of solar wind with due northward IMF by the AMR-CESE-MHD model 期刊论文  OAI收割 SCIENCE CHINA-EARTH SCIENCES, 2015, 卷号: 58, 期号: 7, 页码: 1235-1242 作者:  Wang Juan;  Du AiMin;  Zhang Ying;  Zhang TieLong;  Ge YaSong 收藏  |  浏览/下载：22/0  |  提交时间：2015/09/28 numerical simulation  magnetosphere  magnetohydrodynamic model  adaptive mesh refinement technique  the space-time conservation element and solution element method   Null compensator testing convex freeform surface mirror with CGH technology (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Future Optical Materials and Circuit Design, FOMCD 2012, December 27, 2012 - December 28, 2012, Xiamen, China 作者:  Zhang Z.-Y.;  Zhang Z.-Y.;  Zhang B.-Z. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 The Computer Generated Hologram (CGH) technique is the main method for optical testing the free form surface.For testing a convex free form surface mirror  a CGH element with the surface testing  interferometer and free form mirror precise position function was designed by use of appropriative software  the testing precision was less than 0.011(=632.8nm) in RMS value by this means. (2013) Trans Tech Publications  Switzerland.   A fast target recognition algorithm based on MSA and MSR (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Industrial Control and Electronics Engineering, ICICEE 2012, August 23, 2012 - August 25, 2012, Xi'an, China 作者:  Wang Y.;  Liu G.;  Wang Y.;  Wang Y.;  Wang Y. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 This paper presents a new fast target recognition algorithm  the proposed method is based on Multi-scale Auto convolution(MSA) and Multi-scale Retinex(MSR). As shown by the comparison with original MSA  it appears that this new technique solves the problem that MSA algorithm is sensitive to illumination and the computational load is significantly reduced to 1/8th of that of the original MSA algorithm  it is also robust to affine transform  light projective transform  noise  thin fog  occlusion and illumination change. the performed experiments show that it has fast searching speed  and can accurately recognize and locate target in real scenes. 2012 IEEE.   Improved method of target detection on optoelectronic hybrid joint transform correlator in cluttered scences (EI CONFERENCE) 会议论文  OAI收割 2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011, September 23, 2011 - September 25, 2011, Hefei, China 作者:  Yang L.;  Yang L. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 A classical joint transform correlator (JTC) usually yields large correlation sidelobes as well as a large correlation peak width  strong zero-order peak  and low diffraction efficiency  which make the detection ability of JTC lower. To overcome these difficulties  firstly  a joint power spectrum (JPS) subtraction technique in Fourier plane was proposed  where reference image power spectrum and object image power spectrum are subtracted from the JPS before inverse Fourier-transform operation  it is obvious that the modified JPS removes the zero-order term. Secondly  a fringe-adjusted filter (FAF) was presented to suppress sidelobes and noises. The modified JPS is multiplied by a FAF before the inverse Fourier-transform operation to obtain the cross-correlation peak. Computer simulations demonstrated the improved method can obviously remove zero-order diffraction and effectively suppress the sidelobes and noises compared with classic JTC  and then improve the detection ability for JTC. Experimental results presented the sharp correlation peak and also confirmed the method effectiveness. (2012) Trans Tech Publications  Switzerland.   Image mosaic technique based on the information of edge (EI CONFERENCE) 会议论文  OAI收割 2012 3rd International Conference on Digital Manufacturing and Automation, ICDMA 2012, July 31, 2012 - August 2, 2012, Guilin, Guangxi, China 作者:  Wang Y.-Q. 收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25 Image mosaic is an important branch in the field of image processing. This paper designs and realizes an image mosaic technique based on the information of edge. The technology is suitable for engineering application. First of all  two images of the adjoining frames are processed by convolution operation  get the edge images. And then we cut edge image into pieces and compute their spatial frequency. According to the value of the spatial frequency select reasonable registration model group. We compute correlation strength and the value of movement offset which are the model group and the current frame edge image. We can complete image mosaic by them. We use video sequence which of the resolution is 1024 * 768 do the experiment. The results show that the method has good effect and strong adaptability. Algorithm is high efficiency which running time is 24 ms. It is suitable for real-time processing requirements of the application. This method is an effective mosaic technique which is suitable for engineering application. 2012 IEEE.