中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共6条，第1-6条

帮助

条数/页：排序方式：
	In situ optical observations of keyhole dynamics during laser drilling 期刊论文 OAI收割 APPLIED PHYSICS LETTERS, 2013, 卷号: 103, 期号: 19, 页码: 194102/1-194102/4 作者: Chen M(陈猛); Wang YR(王育人); Yu G(虞钢); Lan D(蓝鼎); Zheng ZY(郑中玉) 收藏 \| 浏览/下载：37/0 \| 提交时间：2014/01/17 High speed photography Drilling assembly Drilling process Dynamics coupling Hole expansions In-situ optical observations Physical process Thin sandwich structures Unified process
	氧化沟污水处理系统的数值模拟与工艺优化学位论文 OAI收割博士, 北京: 中国科学院研究生院, 2012 作者: 李峥收藏 \| 浏览/下载：24/0 \| 提交时间：2017/01/09 贝叶斯推论 Bayesian inference 数值模拟 numerical simulation 综合指数 unified index 工艺优化 process optimization 氧化沟 oxidation ditch 污水处理 wastewater treatment
	Chaos synchronization between fractional-order unified chaotic system and Rossler chaotic system 会议论文 OAI收割 2012 International Conference on Materials Engineering and Automatic Control, ICMEAC 2012, Jinan, China, APR 27-29, 2012 作者: Wu XY; Cheng YL; Liu K; Yu XL; Wu XQ(吴先前) 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/02/26 Automation Control Process control Active control Analysis and simulation Asymptotic synchronization Chaos synchronization Chaotic attractors Chaotic dynamics Chaotic synchronization Different structure Drive systems Fractional-order unified chaotic system Rossler chaotic system Rossler system Unified chaotic systems
	Precision detection of CCD splicing based on template matching algorithm (EI CONFERENCE) 会议论文 OAI收割 IEEE 2nd International Conference on Computing, Control and Industrial Engineering, CCIE 2011, August 20, 2011 - August 21, 2011, Wuhan, China 作者: Zhang X.; Zhang X.; Yang L.; Zhang X.; Yang L. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 The remote sensing camera in large field and wide cover needs CCD with enough pixels. But the existing CCD cannot satisfy the practical needs. Therefore several pieces of CCD which has insufficient pixels are spliced to get a long CCD array with plenty of pixels. The precision requirements of CCD splicing are very strict so that the same high accuracies are required in the precision detection of CCD splicing. When detecting precision of CCD splicing the graphical markers with simple geometric structure in the CCD package are selected as templates. The position precision data of the graphical markers in each CCD are obtained using the template matching algorithm. Using the unified objective templates the focal plane which has multi-chip of CCD is detected by template matching algorithm. Experiment results show that the template matching algorithm can enhance the located precision of each CCD to 0.347m. The splicing precision detection with template matching algorithm can avoid the subjective error caused by the conventional detection method. And its results are more accurate. In addition without manual intervention in the process of precision detection the efficiency of precision detection is improved. 2011 IEEE.
	Modular aircraft simulation platform based on simulink (EI CONFERENCE) 会议论文 OAI收割 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010, August 4, 2010 - August 7, 2010, Xi'an, China Chen C.-Q.; Ji Y. 收藏 \| 浏览/下载：31/0 \| 提交时间：2013/03/25 Aircraft simulation platform is the most important supporting technology in the aircraft development process. This simulation platform can be used for validating the design of subsystem and also it provides the necessary data for the Aircraft design. Wind has great impact on the flight parameter. In order to accurately simulate the wind model and calculate the flight parameters a simulation modeling method for flight parameter simulation platform under wind field environment is established. Firstly the various sub-systems which affecting flight parameters are analyzed some mathematical models of the flight parameter simulation platform is established. Secondly the atmospheric wind field is studied to analyze the impact on its trajectory. Then the model is built in the Simulink toolbox in the Matlab which is based on the principles of hierarchy and modularity using C MEX S-function for the complex kinetic equations. Finally when the models have been established encapsulating models for several subsystem and assembling them for the Aircraft simulation platform based on the unified interface. The simulation tests (including the performance test of a certain gliding Aircraft the wind influence test of a certain uncontrolled aircraft) prove the simulation capability of the platform and its calculating step can reach 1 ms. Comparing simulation with field test data of a certain uncontrolled aircraft it shows that the relative deviation of range is 0.47% the relative deviation of maximal altitude is 2.1%. Taking relevant standards as a reference standard it is demonstrated the platform is reliable meets the engineering accuracy requirements. 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：32/0 \| 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.