中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共13条，第1-10条 帮助

条数/页： 排序方式：
Buckling of planar curved beams with finite prebuckling deformation 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2024, 卷号: 305, 页码: 23
作者:  Li, Jiacheng;  Pan, Fei;  Guo, Shu;  Chen, Yuli;  Su, Yewang
  |  收藏  |  浏览/下载：4/0  |  提交时间：2024/11/14
基于衬底集成空心波导的气体检测性能研究 期刊论文  OAI收割
量子电子学报, 2023, 卷号: 40
作者:  黄文彪;  方勇华;  刘家祥;  司赶上;  李振钢
  |  收藏  |  浏览/下载：5/0  |  提交时间：2024/11/20
Non-uniform distribution of adsorptive fouling along hollow fiber membrane: Characterization and quantification 期刊论文  OAI收割
SEPARATION AND PURIFICATION TECHNOLOGY, 2018, 卷号: 205, 页码: 159-168
作者:  Wang, Xiaomao;  Mu, Situ;  Xiao, Kang;  Fan, Huiju;  Liu, Chun
  |  收藏  |  浏览/下载：59/0  |  提交时间：2019/06/20
Study of CEPC performance with different collision energies and geometric layouts 期刊论文  OAI收割
CHINESE PHYSICS C, 2016, 卷号: 40, 期号: 8
作者:  Xiao M(肖铭);  Gao J(高杰);  Wang D(王逗);  Su F(苏峰);  Wang YW(王毅伟)
  |  收藏  |  浏览/下载：18/0  |  提交时间：2017/07/25
Effect of geometrical parameters on flow and heat transfer performances in multi-stream spiral-wound heat exchangers 期刊论文  OAI收割
applied thermal engineering, 2015, 卷号: 89, 页码: 1104-1116
作者:  Lu, Xing;  Zhang, Gaopeng;  Chen, Yi-tung;  Wang, Qiuwang;  Zeng, Min
收藏  |  浏览/下载：45/0  |  提交时间：2015/11/18
Optimum design of the carbon fiber thin-walled baffle for the space-based camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yan Y.; Gu S.; An Y.; Jin G.
收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25
The thin-walled baffle design of the space-based camera is an important job in the lightweight space camera research task for its stringent quality requirement and harsh mechanical environment especially for the thin-walled baffle of the carbon fiber design. In the paper  an especially thin-walled baffle of the carbon fiber design process was described and it is sound significant during the other thin-walled baffle design of the space camera. The designer obtained the design margin of the thin-walled baffle that structural stiffness and strength can tolerated belong to its development requirements through the appropriate use of the finite element analysis of the walled parameters influence sensitivity to its structural stiffness and strength. And the designer can determine the better optimization criterion of thin-walled baffle during the geometric parameter optimization process in such guiding principle. It sounds significant during the optimum design of the thin-walled baffle of the space camera. For structural stiffness and strength of the carbon fibers structure which can been designed  the effect of the optimization will be more remarkable though the optional design of the parameters chose. Combination of manufacture process and design requirements the paper completed the thin-walled baffle structure scheme selection and optimized the specific carbon fiber fabrication technology though the FEM optimization  and the processing cost and process cycle are retrenchment/saved effectively in the method. Meanwhile  the weight of the thin-walled baffle reduced significantly in meet the design requirements under the premise of the structure. The engineering prediction had been adopted  and the related result shows that the thin-walled baffle satisfied the space-based camera engineering practical needs very well  its quality reduced about 20%  the final assessment index of the thin-walled baffle were superior to the overall design requirements significantly. The design method is reasonable and efficient to the other thin-walled baffle that mass and work environment requirement is requirement harsh. 2011 SPIE.  
Optimal multiresolution dynamic models generation based on triangle importance (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Image Analysis and Signal Processing, IASP'2010, April 12, 2010 - April 14, 2010, Xiamen, China
作者:  Zhao J.;  Zhang S.
收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25
In this paper  we propose an efficient method to generate optimal multiresolution dynamic models. By the method  we define the triangle importance degree as a weight parameter to be embedded to the edge contraction cost  so the new metric can not only measure distance error but also reflect geometric variation of local areas. A deformation degree weight is appended to the aggregated edge contraction cost for the whole animation  thus sharp features on areas with large deformation can be preserved. In addition  a process of mesh optimization and validity check can further alleviate the geometric distortion of the approximations. Our approach is efficient in operation  easy for implementation  and as a result high quality of dynamic approximations with well-preserved fine details can be generated at any given frame. 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.  
Animated models coarsening with local area distortion and deformation degree control (EI CONFERENCE) 会议论文  OAI收割
International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China
作者:  Zhang S.;  Zhao J.
收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25
In computer graphics applications  mesh coarsening is an important technique to alleviate the workload of visualization processing. Compared to the extensive works on static model approximation  very little attentions have been paid to animated models. In this paper  we propose a new method to approximate animated models with local area distortion and deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion measurement as a basic hierarchy. Also  we define a deformation degree parameter to be embedded into the aggregated quadric errors  so areas with large deformation during the animation can be successfully preserved. 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 sharp features can be generated at any given frame. 2010 SPIE.  
Estimating leaf area index by inversion of reflectance model for semiarid natural grasslands 期刊论文  iSwitch采集
Science in china series d-earth sciences, 2009, 卷号: 52, 期号: 1, 页码: 66-84
作者:  Zhang Na;  Zhao YingShi
收藏  |  浏览/下载：28/0  |  提交时间：2019/05/10