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	A hybrid median filter for enhancing dim small point targets and its fast implementation (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Multimedia and Signal Processing, CMSP 2011, May 14, 2011 - May 15, 2011, Guilin, Guangxi, China Yang Q. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 Weak stars and middle altitude orbit satellites or high altitude orbit satellites are presented as dim point targets in images of astronomical observation. They have low intensity and occupy few pixels in image. In most situations the background of sky is always ununiform and there exists pulse noises. Thus results in targets submerging in background noises and low signal noise ratio (SNR). Median filter is an effective method for removing pulse noise. But it can blur image after modifying gray of non-noise pixels when image has low SNR. A hybrid median filter algorithm is proposed to process low SNR dim point targets image. The newly proposed method can suppress the pulse noises also can increase target $SNR$ and does not add extra fake targets. The time complexity of median filter is O(N2)(N is the widow size) and is difficult to implement in hardware. For quasi real time application a fast implementation of our hybrid median filter is proposed to reduce the time complexity to O(N). Experimental results show that the newly proposed algorithm is superior to ordinary median filter and fast median filter by comparing visual effect and performance. 2011 IEEE.
	Application of improved UKF algorithm in initial alignment of SINS (EI CONFERENCE) 会议论文 OAI收割 2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce, AIMSEC 2011, August 8, 2011 - August 10, 2011, Zhengzhou, China Su W. X. 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 In order to improve the initial alignment accuracy and convergence rate of the SINS system proposed the improved UKF algorithm (AUKF) based on the Unscented Kalman Filter (UKF). Noise statistical characteristics are mostly unknown in real systems when it was effected by the initial value errors and dynamic model errors AUKF algorithm can real-time adjust the covariance of the state vector and observation vector and balance the right ratio of the state information and observation information in the filter results thereby improving the system performance. The experimental results show: The Improved UKF Algorithm enhances the convergence speed and alignment accuracy effectively. 2011 IEEE.
	Understanding the enhancement of coating's thermal cracking resistance by multiple segmentation 会议论文 OAI收割 2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, Guangzhou, China, SEP 16-18, 2011 作者: Chen XJ(陈学军); Chen GN(陈光南); Chen XJ(陈学军) 收藏 \| 浏览/下载：42/0 \| 提交时间：2013/02/26 Coatings Crack initiation Cracking (chemical) Cracks Design Finite element method Stress intensity factors Thermal shock Thermal stress Cracking behavior Driving forces Experimental observation Hollow cylinders Multiple segmentation Outer surface Principle of superposition Segmentation crack Segmentation cracks Segmented coatings Steady state Thermal cracking Thermal shock resistance Thermal transients
	Study of three-mode parametric instability (EI CONFERENCE) 会议论文 OAI收割 8th Edoardo Amaldi Conference on Gravitational Waves, June 21, 2009 - June 26, 2009, New York, NY, United states Liang F.; Zhao C.; Gras S.; Ju L.; Blair G. 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 The effect of parametric instability in advanced interferometric gravitational wave detectors is a potential problem for their proper operation. Great efforts have been made to study the onset of parametric instabilities and to find ways to control them. Here we present an experimental design for studying parametric instability in a 72 m cavity with suspended high quality fused silica mirrors. With 5 W input power and 20 kW circulation power inside the cavity it is predicted that parametric instability will occur. The resonant condition of parametric instability can be met by thermally tuning the radius of curvature of a test mass. We will present simulation results of parametric gains for different radii of curvature of a test mass. The simulation results will provide the basis for designing the thermal tuning and observation parametric instability experiments. This will provide a test bed for studying parametric instability and its control for next generation detectors. 2010 IOP Publishing Ltd.
	THE EXPERIMENTAL-OBSERVATION AND NUMERICAL PREDICTION OF PLANAR ENTRY FLOW AND DIE SWELL FOR MOLTEN POLYETHYLENES 期刊论文 OAI收割 JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1995, 卷号: 59, 期号: 2-3, 页码: 129-153 作者: AHMED, R; LIANG, RF; MACKLEY, MR \| 收藏 \| 浏览/下载：26/0 \| 提交时间：2019/04/09 Die Swell Experimental Observation Planar Entry Flow Polyethylene Melt Numerical Simulation Wagner Integral Equation