中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共9条,第1-9条 帮助

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Effect of Rare-Earth Ionic Radius on Microstructure and Electrical Property of Rare-Earth Zirconate Ceramics 期刊论文  OAI收割
RARE METAL MATERIALS AND ENGINEERING, 2016, 卷号: 45, 期号: 8, 页码: 2003-2008
作者:  
Xia Xiaoliang;  Liu Zhanguo;  Ouyang Jiahu;  Jin Yujun
收藏  |  浏览/下载:35/0  |  提交时间:2016/11/02
Assessment of mobilities of the B2Phase in the nickel-chromium-aluminum system 会议论文  OAI收割
12th IUMRS International Conference on Advanced Materials, IUMRS-ICAM 2013, Qingdao, China, September 22, 2013 - September 28, 2013
作者:  
Zhang HY;  Tian JS;  Liang LH(梁立红);  Wei H;  Zheng Q
收藏  |  浏览/下载:29/0  |  提交时间:2017/05/27
The shape edge measure of automobile airbag based on image processing (EI CONFERENCE) 会议论文  OAI收割
2012 IEEE 5th International Conference on Advanced Computational Intelligence, ICACI 2012, October 18, 2012 - October 20, 2012, Nanjing, China
作者:  
Li Y.;  Wang Z.;  Wang Z.;  Li Y.;  Li Y.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
At present  micrometer is used for measure the shape edge of automobile airbag. There are some shortcomings in this method. The number of test points is limited. Test data is not comprehensive. Detection speed is slow and a fixture can only test a kind of airbag. The method of airbag shape edge detection based on image processing is researched in this paper. The image of airbag is collected by CCD  and then it is sent to the computer to be processed and segmented. The edge of image is extracted through Canny edge detection algorithm in order to acquire shape edge of airbag in this paper  and the image similarity degree are calculated to provide the information of matching in the template matching process. Finally the comprehensive test shape edge of airbag is realized. The experimental results show that the detection method is effective feasible  intuitive and clear. 2012 IEEE.  
Roughness analysis of optical surfaces by X-ray scattering (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China
作者:  
Chen B.;  Chen B.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
A grazing incidence x-ray scattering (XRS) method  Order perturbation theory (FOPT)  is stated briefly and an experimental facility based on an improved X-ray diffraction has been introduced  which can work with high performance. The x-ray scattering distributions of two super smooth silicon samples measured at the incidence angle 0.2 degree  as the x-ray wavelength is 0.154 nm  have been given and analyzed by the FOPT to give information about the surface profiles. As a comparison  the root mean square (RMS) surface roughness  grey-scale maps and one-dimensional power spectral density (1D PSD) have been derived from the atomic-force microscope (AFM) data. The results evaluated by FOPT are in good agreement with that of AFM  which indicates that x-ray scattering method is a practical characterization for the investigation of super smooth surfaces. 2011 IEEE.  
An improved algorithm to generate high quality progressive animation models (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Biomedical Engineering and Computer Science, ICBECS 2010, April 23, 2010 - April 25, 2010, Wuhan, China
作者:  
Zhao J.;  Zhang S.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
In computer graphics  investigation has been made in many years in progressive models generation to alleviate the workload of visualization processing. However  most of the existing algorithms only focus on static meshes  and very little works are to deal with animation models. In this paper  we propose an improved method for generating progressive multiresolution animation models. By the method we first use a normal deviation parameter to improve the famous QEM method as our basic edge contraction metric to generate a base hierarchy. The sequence of the simplified models is generated progressively from the first frame to the last one. Based on the edge contraction sequence in the previous frame  the contraction order in the current frame is adjusted according to the deformation degree. We demonstrate that our method works efficiently and can generate better approximations with well-preserved features than previous methods. 2010 IEEE.  
A local feature based simplification method for animated mesh sequence (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:  
Wang B.;  Wang B.;  Zhao J.;  Zhang S.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
Although animated meshes are frequently used in numerous domains  only few works have been proposed until now for simplifying such data. In this paper  we propose a new method for generating progressive animated models based on local feature analysis and deformation area preservation. We propose the use of solid angle and height value for a non-hyperbolic vertex to define the local feature parameter. This local factor is embedded to the vertex quadric error matrix when calculating the edge collapse cost. In order to preserve the areas with large deformation  we add deformation degree weight to the aggregated quadric errors when computing the unified edge contraction sequence. Finally  a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast  easy to implement  and as a result good quality dynamic approximations with well-preserved fine details can be generated at any given frame. 2010 IEEE.  
DOA estimation algorithm of UWB signal based on unitary circuit array (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者:  
Zhang X.;  Chen X.;  Chen X.;  Chen X.;  Zhang X.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
A new algorithm to approximate deforming models based on torsion detection (EI CONFERENCE) 会议论文  OAI收割
2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010, September 23, 2010 - September 25, 2010, Chengdu, China
作者:  
Zhang S.;  Wang G.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
An improved discrete particle swarm optimization algorithm for TSP (EI CONFERENCE) 会议论文  OAI收割
2007 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Workshops, WI-IAT Workshops 2007, November 2, 2007 - November 5, 2007, Silicon Valley, CA, United states
作者:  
Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25