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CORC

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Apparent singularities of D-finite systems 期刊论文
JOURNAL OF SYMBOLIC COMPUTATION, 2019, 卷号: 95, 页码: 217-237
作者:  Chen, Shaoshi;  Kauers, Manuel;  Li, Ziming;  Zhang, Yi
收藏  |  浏览/下载：29/0  |  提交时间：2020/01/10
Reconstruction of two-dimensional velocity distribution in scramjet by laser absorption spectroscopy tomography 期刊论文
APPLIED OPTICS, 2019, 卷号: 58, 页码: 205-212
作者:  Qu, Qianwei;  Cao, Zhang;  Xu, Lijun;  Liu, Chang;  Chang, Liuyong
收藏  |  浏览/下载：13/0  |  提交时间：2019/12/30
Well-posedness of a class of two-point boundary value problems associated with ordinary differential equations 期刊论文
ADVANCES IN DIFFERENCE EQUATIONS, 2018
作者:  Liu, Ruyi;  Wu, Zhen
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/11
Classical and weak solutions of the partial differential equations associated with a class of two-point boundary value problems 期刊论文
BOUNDARY VALUE PROBLEMS, 2018
作者:  Ma, Ning;  Wu, Zhen
收藏  |  浏览/下载：4/0  |  提交时间：2019/12/11
THE CONVERGENT GENERALIZED CENTRAL PATHS FOR LINEARLY CONSTRAINED CONVEX PROGRAMMING 期刊论文
SIAM JOURNAL ON OPTIMIZATION, 2018, 卷号: 28, 期号: 2, 页码: 1183-1204
作者:  Qian, Xun[1];  Liao, Li-Zhi[2];  Sun, Jie[3];  Zhu, Hong[4]
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/24
Stability analysis for a class of caputo fractional time-varying systems with nonlinear dynamics 期刊论文
Lecture Notes in Electrical Engineering, 2018, 卷号: 459, 页码: 383-395
作者:  Guo, Y.;  Ma, B.
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30
POSITIVE SOLUTIONS FOR A 2nTH-ORDER p-LAPLACIAN BOUNDARY VALUE PROBLEM INVOLVING ALL DERIVATIVES 期刊论文
ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS, 2013
作者:  Ding, Youzheng;  Xu, Jiafa;  Zhang, Xiaoyan
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/23
A multiplicity result of positive solutions for a class of multi-parameter ordinary differential systems 期刊论文
ACTA MATHEMATICAE APPLICATAE SINICA-ENGLISH SERIES, 2012, 卷号: 28, 期号: 4, 页码: 653-662
作者:  Cheng, XY;  Yan, XL
收藏  |  浏览/下载：1/0  |  提交时间：2015/12/16
Positive solutions for a multi-parameter system of second-order ordinary differential equations 期刊论文
SCIENCE CHINA-MATHEMATICS, 2011, 卷号: 54, 期号: 5, 页码: 959-972
作者:  Cheng XiYou;  Zhang ZhiTao
收藏  |  浏览/下载：9/0  |  提交时间：2018/07/30
A hybrid median filter for enhancing dim small point targets and its fast implementation (EI CONFERENCE) 会议论文
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：18/0  |  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.  

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