中国科学院机构知识库网格
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Strong and weak interactions of rational vector rogue waves and solitons to any n-component nonlinear Schrodinger system with higher-order effects 期刊论文  OAI收割
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2022, 卷号: 478, 期号: 2257, 页码: 23
作者:  
Weng, Weifang;  Zhang, Guoqiang;  Yan, Zhenya
  |  收藏  |  浏览/下载:55/0  |  提交时间:2022/04/02
Proofreading of DNA polymerase: a new kinetic model with higher-order terminal effects 期刊论文  OAI收割
JOURNAL OF PHYSICS-CONDENSED MATTER, 2017, 卷号: 29, 期号: 2, 页码: 25101
作者:  
Ou-Yang, ZC;  Song, YS;  Shu, YG;  Zhou, X;  Li, M
  |  收藏  |  浏览/下载:148/0  |  提交时间:2017/12/21
Transition, coexistence, and interaction of vector localized waves arising from higher-order effects 期刊论文  OAI收割
ANNALS OF PHYSICS, 2015, 卷号: 362, 页码: 130-138
作者:  
Liu, Chong;  Yang, Zhan-Ying;  Zhao, Li-Chen;  Yang, Wen-Li
  |  收藏  |  浏览/下载:17/0  |  提交时间:2018/05/31
Dynamics of Controllable Optical Rogue Waves in Presence of Quintic Nonlinearity and Nonlinear Dispersion Effects 期刊论文  OAI收割
COMMUNICATIONS IN THEORETICAL PHYSICS, 2014, 卷号: 62, 页码: 701-706
作者:  
Ma Xiao-Xiao;  Zhao Li-Chen;  Liu Chong;  Yang Zhan-Ying;  Yang Wen-Li
  |  收藏  |  浏览/下载:29/0  |  提交时间:2018/07/05
A Local Image Enhancement Method Based on Adjacent Pixel Gray Order-preserving Principle 会议论文  OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者:  
Fan XP(范晓鹏);  Cai TF(蔡铁峰);  Zhu F(朱枫)
收藏  |  浏览/下载:45/0  |  提交时间:2013/12/26
The paper is committed in local image enhancement. At first, the authors propose an adjacent pixel gray order-preserving principle. Adjacent pixel gray order-preserving principle is the basement of local enhancement method which ensures that there is no distortion in processed image. And then, the authors propose an iterative algorithm, which could stretch gray-scale difference of adjacent pixels in premise of not changing gray magnitude relationship between adjacent pixels. At last, the authors propose a totally reference image quality assessment method based on adjacent pixel gray order-preserving principle. According to this quality assessment method, the authors made a set of comparative experiments with local histogram equalization and method. Experimental results show that the proposed enhancement method can get higher score and provide better visual effects, fully demonstrating its effectiveness. According to this quality assessment method, the proposed method shows a good effectiveness, through experimental results and comparison with local histogram equalization method.  
Double-swing method used for polishing off-axis aspherical mirrors (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Chen Y.;  Song S.-M.;  Xuan B.;  Wang P.;  Li J.-F.
收藏  |  浏览/下载:50/0  |  提交时间:2013/03/25
Measuring the system gain of the TDI CCD remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004, Beijing, China
Ya-xia L.; Hai-ming B.; Jie L.; Jin R.; Zhi-hang H.
收藏  |  浏览/下载:70/0  |  提交时间:2013/03/25
The gain of a TDI CCD camera is the conversion between the number of electrons recorded by the TDI CCD and the number of digital units (counts) contained in the CCD image"[1]. TDI CCD camera has been a main technical approach for meeting the requirements of high-resolution and lightweight of remote sensing equipment. It is useful to know this conversion for evaluating the performance of the TDI CCD camera. In general  a lower gain is better. However  the resulting slope is the gain of the TDI CCD. We did the experiments using the Integration Sphere in order to get a flat field effects. We calculated the gain of the four IT-EI-2048 TDI CCD. The results and figures of the four TDI CCD are given.  this is only true as long as the total well depth (number of electrons that a pixel can hold) of the pixels can be represented. High gains result in higher digitization noise. System gains are designed to be a compromise between the extremes of high digitization noise and loss of well depth. In this paper  the mathematical theory is given behind the gain calculation on a TDI CCD camera and shows how the mathematics suggests ways to measure the gain accurately according to the Axiom Tech. The gains were computed using the mean-variance method  also known as the method of photon transfer curves. This method uses the effect of quantization on the variance in the measured counts over a uniformly illuminated patch of the detector. This derivation uses the concepts of signal and noise. A linear fit is done of variance vs. mean