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浏览/检索结果: 共13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 An Orthogonal Subspace Decomposition Method for Cross-Modal Retrieval 期刊论文  OAI收割 IEEE INTELLIGENT SYSTEMS, 2022, 卷号: 37, 期号: 3, 页码: 45-53 作者:  Zeng, Zhixiong;  Xu, Nan;  Mao, Wenji;  Zeng, Daniel   |  收藏  |  浏览/下载：39/0  |  提交时间：2022/09/19 Semantics  Representation learning  Task analysis  Matrix decomposition  Automation  Interference  Intelligent systems  Cross-modal Retrieval  Representation Learning  Orthogonal Decomposition   Orthogonal sparse fractal coding algorithm based on image texture feature 期刊论文  OAI收割 IET IMAGE PROCESSING, 2019, 卷号: 13, 期号: 11, 页码: 1872-1879 作者:  Cao, Jian;  Zhang, Aihua;  Shi, Lei   |  收藏  |  浏览/下载：224/0  |  提交时间：2019/10/11 image coding  feature extraction  fractals  data compression  image texture  image reconstruction  orthogonal codes  image colour analysis  transforms  decomposition  matrix algebra  orthogonal sparse grey level  sparse decomposition  decoding speed  orthogonal sparse fractal coding algorithm  image reconstruction quality  image texture feature extraction  fractal image compression coding algorithm  grey description feature extraction  orthogonal sparse grey level transform   Finite element and experimental studies of the formation mechanism of edge defects during machining of SiCp/Al composites 期刊论文  OAI收割 International Journal of Machine Tools & Manufacture, 2014, 卷号: 84, 页码: 9-16 L. Zhou; Y. Wang; Z. Y. Ma; X. L. Yu 收藏  |  浏览/下载：28/0  |  提交时间：2015/01/14 SiCp/Al composites  Formation mechanism  Edge defects  Orthogonal  cutting experiment  Finite element  reinforced plastic composites  burr formation processes  metal-matrix  composites  feed direction  exit  delamination  ceramics  reduction   Molecularly imprinted matrix solid-phase dispersion coupled to micellar electrokinetic chromatography for simultaneous determination of triazines in soil, fruit, and vegetable samples 期刊论文  OAI收割 ELECTROPHORESIS, 2012, 卷号: 33, 期号: 15, 页码: 2454-2463 作者:  Wen, Yingying;  Chen, Lingxin;  Li, Jinhua;  Ma, Yanling;  Xu, Shoufang 收藏  |  浏览/下载：35/0  |  提交时间：2013/03/08 Matrix solid-phase dispersion  Micellar electrokinetic chromatography  Molecularly imprinted polymers  Orthogonal design  Triazines   甜菊糖大孔吸附树脂吸附分离工艺条件的正交设计优化 期刊论文  OAI收割 应用化工, 2011, 卷号: 40, 期号: 6, 页码: 945-948 作者:  刘永峰;  邸多隆;  邸多隆;  黄新异 收藏  |  浏览/下载：19/0  |  提交时间：2012/10/18 甜菊糖  大孔吸附树脂  矩阵分析法  正交设计  separation  macroporous adsorption resin  matrix analysis method  orthogonal design   The approximate state transition matrix based on non-orthogonal decomposition and its application in orbit determination 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2010, 卷号: 53, 期号: 3, 页码: 555-561 作者:  Chen WuShen;  Ma JingYuan;  Zhang Jing;  Lu BenKui 收藏  |  浏览/下载：27/0  |  提交时间：2011/11/23 Unit Vector Method  state transition matrix  non-orthogonal decomposition   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.   Modified incomplete orthogonal factorization methods using Givens rotations 期刊论文  OAI收割 COMPUTING, 2009, 卷号: 86, 期号: 1, 页码: 53-69 作者:  Bai, Zhong-Zhi;  Yin, Jun-Feng   |  收藏  |  浏览/下载：29/0  |  提交时间：2018/07/30 Preconditioner  Givens rotation  Incomplete orthogonal factorization  Nonsymmetric matrix   Numerical study on incomplete orthogonal factorization preconditioners 期刊论文  OAI收割 JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2009, 卷号: 226, 期号: 1, 页码: 22-41 作者:  Bai, Zhong-Zhi;  Duff, Iain S.;  Yin, Jun-Feng   |  收藏  |  浏览/下载：20/0  |  提交时间：2018/07/30 Preconditioning  Givens rotation  Incomplete orthogonal factorization  Nonsymmetric matrix  Normal equations   Based on Householder transform of the Zernike polynomial wave front fitting method to solve active optics correction force (EI CONFERENCE) 会议论文  OAI收割 Infrared Materials, Devices, and Applications, November 12, 2007 - November 15, 2007, Beijing, China 作者:  Wu X.-X. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 Corrective force solving is a critical technology of the active optics. A method to solve active optics corrective force is introduced  which is based on Householder transform of Zernike polynomial wave front fitting  this method is different from the traditional least square method and Gram-Schmid orthogonal method  because it does not bring ill-conditioned polynomial without constructing normal equation  so it can avoid calculation error  wave front fitting is precision. Based on the coefficient of the Zernike polynomial and the response function of the each actuator  the stiffness matrix of the primary mirror is built  and then adopting the damp least square method to calculate corrective force. Based on this method  cp400m test mirror is simulated many times  the calculation result approve: if the Householder transform is adopted  wave front fitting is precision  the result is stabilization and corrective effectiveness is better.