中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Achieving a strong polypropylene/aluminum alloy friction spot joint via a surface laser processing pretreatment 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 卷号: 50, 页码: 103-114
作者:  
Han, S. C.;  Wu, L. H.;  Jiang, C. Y.;  Li, N.;  Jia, C. L.
  |  收藏  |  浏览/下载:23/0  |  提交时间:2021/02/02
Achieving a strong polypropylene/aluminum alloy friction spot joint via a surface laser processing pretreatment 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 卷号: 50, 页码: 103-114
作者:  
Han, S. C.;  Wu, L. H.;  Jiang, C. Y.;  Li, N.;  Jia, C. L.
  |  收藏  |  浏览/下载:22/0  |  提交时间:2021/02/02
Panoramic aerial camera image motion measurement using a hybrid system (EI CONFERENCE) 会议论文  OAI收割
2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China
作者:  
Jia P.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
Image motion compensation is significantly important for aerial camera photograph. To execute the compensation  we must determine the image motion exactly. This paper proposes a method of real-time image motion measurement for panoramic aerial cameras based on image processing using a hybrid system. Two cameras are simultaneously used in the hybrid system. One main linear CCD for imaging  while the other auxiliary low resolution high frame rate area CCD for determining the image motion based on 2D spatial correlation. The demanding computational requirements for the real-time 2D spatial correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 IEEE.  
Pre-process technique study of a high performance remote image sensor structural Finite Element Analysis (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:  
Zhang L.;  Xu Y.-S.;  Zhang L.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
High precision structural Finite Element Analysis (FEA) results are required in the development of a remote image sensor. HperMesh and MSC. Nastran are employed in the image sensor structural FEA. This paper discusses some technical issues about the Finite Element (FE) modeling of the image sensor. In order to obtain authentic analysis results  the part-to-whole handling schema  i.e. handling method and research work is implemented in a small part of the model firstly and a revised method is used in the whole structural in succession  has been proposed. Some emphasis is mainly put on the FE handling of bolted joint  bearing and inter-element connection. The interface handling methods  such as CBEAM plus partial MPC bolted joint model  hybrid element bearing model and RBE3 beam-to-solid connection  have been produced and successfully implemented in the image sensor structural FEA. 2010 IEEE.