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	Applying maximally stable extremal regions and local binary patterns for guide-wire detecting in percutaneous coronary intervention 期刊论文 OAI收割 IET IMAGE PROCESSING, 2019, 卷号: 13, 期号: 13, 页码: 2579-2586 作者: Pusit, Prasong; Xie, Xiao-Liang; Hou, Zeng-Guang \| 收藏 \| 浏览/下载：52/0 \| 提交时间：2020/03/30 blood vessels medical image processing surgery image sequences video signal processing image filtering object detection X-ray imaging object tracking stroke width variation filter region detection local binary patterns guide-wire recognition conventional MSER methods maximally stable extremal regions guide-wire position anatomical skeleton contours training data X-ray video sequence percutaneous coronary intervention surgery region area range filter X-ray video monitoring guide-wire tip detection modified multifilters training templates
	Solutions of Jimbo-Miwa Equation and Konopelchenko-Dubrovsky Equations 期刊论文 OAI收割 ACTA APPLICANDAE MATHEMATICAE, 2010, 卷号: 112, 期号: 2, 页码: 181-203 作者: Cao, Bintao \| 收藏 \| 浏览/下载：17/0 \| 提交时间：2018/07/30 Jimbo-Miwa Konopelchenko-Dubrovsky Stable-range Logarithmic stable-range
	Stable-Range Approach to Short Wave and Khokhlov-Zabolotskaya Equations 期刊论文 OAI收割 ACTA APPLICANDAE MATHEMATICAE, 2009, 卷号: 106, 期号: 3, 页码: 433-454 作者: Xu, Xiaoping \| 收藏 \| 浏览/下载：25/0 \| 提交时间：2018/07/30 Stable range Short wave Khokhlov-Zabolotskaya Symmetry transformation Exact solution
	Disc varifocal mechanism to improve efficiency of scene matching navigation system (EI CONFERENCE) 会议论文 OAI收割 2009 2nd International Conference on Future Information Technology and Management Engineering, FITME 2009, December 13, 2009 - December 14, 2009, Sanya, China 作者: Zhang C.-L. 收藏 \| 浏览/下载：20/0 \| 提交时间：2013/03/25 In order to meet special requests of optical imaging sensor in scene matching navigation system a disc varifocal mechanism is proposed for the flight vehicles of long flying time and range. Within small space occupied it can obtain real images with various resolutions. Moreover using plate traveling-wave Ultrasonic Motor as its driven motor can reduce energy loss improve control precision and ensure image obtaining being real-time and stable. Disc varifocal mechanism driven by plate traveling-wave Ultrasonic Motor is high-response and variation in load doesn't affect its performance parameter. Therefore applying disc varifocal mechanism in scene matching navigation system combing software and hardware can obviously improve the accuracy real-time and robust of scene matching navigation system. The experiment showed that when the weight of mechanism was 1.5kg the shortest starting was 0.6ms and the shortest shutoff was 0.5ms. 2009 IEEE.
	Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE) 会议论文 OAI收割 ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China Liang F.; Hu J. 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/03/25 The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS several key techniques as follows are introduced. Firstly the unique system configuration four axes mutually intersecting at the center of the SS is adopted which ensures the shape of the focus be maintained circular during the writing period. Secondly an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly to guarantee the linear velocity to accord with the exposure character of the photoresist all the time an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m and the steep sides of the lines are parallel to each other.
	Exchange rings satisfying the n-stable range condition, II 期刊论文 OAI收割 ALGEBRA COLLOQUIUM, 2003, 卷号: 10, 期号: 1, 页码: 1-8 作者: Chen, HY; Li, FA \| 收藏 \| 浏览/下载：13/0 \| 提交时间：2018/07/30 exchange ring n-stable range condition
	On ideals of regular rings 期刊论文 OAI收割 ACTA MATHEMATICA SINICA-ENGLISH SERIES, 2002, 卷号: 18, 期号: 2, 页码: 347-356 作者: Chen, HY; Li, FA \| 收藏 \| 浏览/下载：18/0 \| 提交时间：2018/07/30 regular ring comparability stable range one Roth's problem
	Exchange rings having ideal-stable range one 期刊论文 OAI收割 SCIENCE IN CHINA SERIES A-MATHEMATICS, 2001, 卷号: 44, 期号: 5, 页码: 579-586 作者: Chen, HY; Li, F \| 收藏 \| 浏览/下载：15/0 \| 提交时间：2018/07/30 exchange ring stable range condition diagonal reduction