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End-to-end simulation of the C-ADS Injector II with a 3-D field map 期刊论文  OAI收割
CHINESE PHYSICS C, 2013, 卷号: 37, 页码: UNSP 047003
作者:  
Wang, WS;  Liu, SH;  Jia, H;  Li, C;  Xu, XB
  |  收藏  |  浏览/下载:25/0  |  提交时间:2016/03/29
Monte Carlo simulation of light propagation in human tissue models (EI CONFERENCE) 会议论文  OAI收割
3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009, June 11, 2009 - June 13, 2009, Beijing, China
作者:  
Wang Z.;  Wang L.;  Wang L.;  Wang L.;  Wang Z.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
In this paper  in order to be more sensitive to the volumetric changes of capillaries in the skin  the photon propagation process in human brain tissue and skin tissue with various source and detector separation distances were simulated based on the Monte Carlo method. The human brain model and the skin model that were used in our experiments have five layers and seven layers  the separation distance of source and detector should be approximately eight millimeters. Future work was discussed at the end of the paper. 2009 IEEE.  respectively. The backscattered intensity from every layer of the human tissue model was obtained by marking the deepest layer that every photon can reach. The simulation results of brain model indicated that the source-detector separation distance should be selected at three centimeters for studies on the actions of the brain nerve cells  
Study of high precision non-contact measurement based on CCD (EI CONFERENCE) 会议论文  OAI收割
4th International Conference on Information Technology and Applications, ICITA 2007, January 15, 2007 - January 18, 2007, Harbin, China
Lin L.; Yun F.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
In this paper a method that measures relatively positionrelationshipquickly and accurately between two vehicles both on a horizontal plane is introduced. When the linear CCD camera placed on the end of manipulator scans two point targets located on the other vehicle  by virtue of the spatial intersection principle and trigonometry theorem  the relative position relationship between the loading vehicles and launching ones can be gotten(i.e. the spatial coordinate parameters of x  y  z and the angle displacement ). At the same time the paper establishes that the measurement error of length is less than 1mm  by analysis of thee rror analysis and the simulation of computer. The angle displacement is less than 3  which satisfies the technical requests. So the vehicle orientation and loading missiles can be both done at the shortest time. It meets the demand of centralization between the measurement and execution. Forboth automatic transshipment and spatial position relationship measurement  the study is valuable. And the manipulator is measure device as well as executive one so that residual inherent error decreases according to identical reference principle. Therefore the measure precision can be improved greatly.  
Application of linear CCD for position measurement (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Fu Y.;  Liu L.;  Liu L.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
A method that measures relatively position relation between two vehicles fleetly and accurately that are both on a horizontal plane is proposed in the article. When manipulator rotates horizontally  that of angle is less than 26  the linear CCD vidicon that is on the end of manipulator on the loading vehicle scans two point targets that are on the launching vehicle  which satisfies technical requests. So the method is feasible. The research is not only significant for missile of automatic transshipment  and then we can utilize spatial intersection principle and trigonometry theorem to get relatively position relationship. I.e. the coordinate parameters: x  but also is valuable in theoretic research on method of measuring spatial position relationship.  y  z  . Error analysis and the simulation on computer validate: the measurement error of length is less than 0.84mm