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浏览/检索结果: 共22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 Combining Prior Knowledge With CNN for Weak Scratch Inspection of Optical Components 期刊论文  OAI收割 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2021, 卷号: 70, 期号: 1, 页码: 11 作者:  Hou, Wei;  Tao, Xian;  Xu, De   |  收藏  |  浏览/下载：21/0  |  提交时间：2021/03/08 Convolutional neural network (CNN)  direction-sensitive convolution (DSC)  local maximum index (LMI)  optical component  weak scratch inspection   On the Derivation of Geometric Optical Kernels for Directional Thermal Radiation 期刊论文  OAI收割 EARTH AND SPACE SCIENCE, 2020, 卷号: 7, 期号: 1, 页码: 13 作者:  Liu, Xiangyang;  Tang, Bo-Hui;  Li, Zhao-Liang;  Zhang, Xia;  Shang, Guofei   |  收藏  |  浏览/下载：50/0  |  提交时间：2020/05/19 thermal radiation directionality  geometric optical model  kernel function  component temperature difference  land surface temperature   On the Derivation of Geometric Optical Kernels for Directional Thermal Radiation 期刊论文  OAI收割 EARTH AND SPACE SCIENCE, 2020, 卷号: 7, 期号: 1, 页码: 13 作者:  Liu, Xiangyang;  Tang, Bo-Hui;  Li, Zhao-Liang;  Zhang, Xia;  Shang, Guofei   |  收藏  |  浏览/下载：25/0  |  提交时间：2020/05/19 thermal radiation directionality  geometric optical model  kernel function  component temperature difference  land surface temperature   The aerosol optical properties and PM2.5 components over the world's largest industrial zone in Tangshan, North China 期刊论文  OAI收割 ATMOSPHERIC RESEARCH, 2018, 卷号: 201, 页码: 226-234 作者:  Zhang, Kequan   |  收藏  |  浏览/下载：26/0  |  提交时间：2019/09/25 Tangshan  Industrial aerosols  Aerosol optical properties  PM2.5 chemical component   Object detection based on deformable part model 期刊论文  OAI收割 Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technology: Optical Test, Measurement Technology, and Equipment, 2016, 卷号: 9684, 页码: 96842P 作者:  Wei, Lei;  Xu, Zhiyong   |  收藏  |  浏览/下载：26/0  |  提交时间：2018/06/14 Feature Extraction  Manufacture  Object Detection  Optical Testing  Principal Component Analysis  Support Vector Machines   Structural design of large aperture rectangular mirror for space telescope (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Civil Engineering and Transportation, ICCET 2012, October 27, 2012 - October 28, 2012, Guilin, China 作者:  Li Z.;  Li Z. 收藏  |  浏览/下载：43/0  |  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.   Structural amelioration of 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012, October 12, 2012 - October 14, 2012, Jilin, China 作者:  Liu Y.;  Liu Y.;  Wang L.;  Wang L.;  Wang L. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) has an important application in laser display. We constructed and optimized a 920 nm OPS-VECSEL with active region of In0.09Ga0.91As quantum well (QW) system pumped by 808 nm laser diode module. By the finite element method  self-consistent solutions of the semiconductor electronic and optical equations are realized to calculate the characteristics parameters of OPS-VECSEL. The performances of device especially the mode  the threshold and the optical-optical translation efficiency were analyzed by dealing with different number of QWs (1  2 and 3) in one period  QW depth  barrier width  the component and dimension of the non-absorption layer. We chose an improved structure of them. On this basis  we ameliorated the number of QW periods and the simulation showed that in order to obtain high performance device  the choice of the number of QW periods must be cautious. (2013) Trans Tech Publications  Switzerland.   A multi-temporal wide swath hyperspectral image simulation approach 会议论文  OAI收割 34th Asian Conference on Remote Sensing 2013, ACRS 2013,, Bali, Indonesia, October 20, 2013 - October 24,2013 Sun, Xuejian; Wu, Taixia; Zhang, Lifu; Tong, Qingxi 收藏  |  浏览/下载：27/0  |  提交时间：2014/12/07 Matrix algebra  Classification (of information)  Independent component analysis  Linear transformations  Mathematical transformations  Optical sensors  Pixels  Remote sensing  Spectroscopy   Hyperspectral image for discriminating aphid and aphid damage region of winter wheat leaf 会议论文  OAI收割 2013 33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013,, Melbourne, VIC, Australia, July 21, 2013 - July 26,2013 Luo, Juhua; Huang, Wenjiang; Guan, Qingsong; Zhao, Jinling; Zhang, Jingcheng 收藏  |  浏览/下载：31/0  |  提交时间：2014/12/07 Principal component analysis  Crops  Damage detection  Geology  Infrared devices  Optical waveguides  Pixels  Reflection  Remote sensing  Spectroscopy