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A Quantitative Study of Factors Influence on Evacuation in Building Fire Emergencies 期刊论文  OAI收割
IEEE Transactions on Computational Social Systems, 2018, 卷号: 5, 期号: 2, 页码: 544-552
作者:  
Yuling Hu;  Xiao Wang;  Fei-Yue Wang
  |  收藏  |  浏览/下载:14/0  |  提交时间:2018/10/09
The impacts of interannual climate variability and agricultural inputs on water footprint of crop production in an irrigation district of China 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2013, 卷号: 444, 页码: 498-507
作者:  
Sun, Shikun;  Wu, Pute;  Wang, Yubao;  Zhao, Xining;  Liu, Jing
收藏  |  浏览/下载:44/0  |  提交时间:2016/01/06
An ecological dynamics model of algae growth in Taihu Lake and the analysis of its influencing factors 会议论文  OAI收割
1st International Conference on Energy and Environmental Protection, ICEEP 2012, Hohhot, China, JUN 23-24, 2012
作者:  
Liu QQ(刘青泉);  Gao Y(高永);  Xu XF(许旭峰);  Liu QQ(刘青泉)
收藏  |  浏览/下载:30/0  |  提交时间:2013/02/26
The research of the accurate measure of static transfer function for the TDI CCD camera (EI CONFERENCE) 会议论文  OAI收割
3rd International Photonics and OptoElectronics Meetings, POEM 2010, November 2, 2010 - November 5, 2010, Wuhan, China
Guo-Ning L.; Long-Xu J.; Jian-Yue R.; Wen-Hua W.; Shuang-Li H.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
In the test course of static transfer function of TDI CCD camera  because of the influence that gets environmental and artificial etc. factor  the value of static transfer function measured at any time is between unceasing fluctuation  so  make accuracy reduce. To solve this problem  a kind of accurate measurement technique of static transfer function is put forward. First  before carrying out the measure of static quiet of transfer function  the best test point of transfer function of the TDI CCD camera must be determined  it is parallel to guarantee the rectangle target surface of parallel optical pipe and camera focal plane maintenance parallel  and again guarantee target strip in rectangle target and TDI CCD in camera focal plane maintenance vertical. TDI CCD catches rectangle target image  per 1000 lines of target mark image as a measures sample of static transfer function  exclude because of atmosphere tremble twisted  vague rectangle target mark image  retain 500 distinct and steady target mark image as measure sample set. Then  calculate the static transfer function of each measure sample respectively  take the average of all static quiet transfer function in measure sample set as the static transfer function of camera. Finally  the measure of the static transfer function for TDI CCD camera makes error analysis. Experimental results indicate that the value of the static transfer function of TDI CCD camera measured with this kind of method is 0.2923  with before measurement technique comparison  the value of static transfer function has raised 0.02  makes the accuracy of the measure of static transfer function have gotten raising.  
Impacts of agricultural land management on soil quality after 24 years: a case study in Zhangjiagang County, China 期刊论文  iSwitch采集
NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH, 2011, 卷号: 54, 期号: 4, 页码: 261-273
作者:  
Qi, Y. B.;  Huang, B.;  Darilek, J. L.
收藏  |  浏览/下载:43/0  |  提交时间:2019/10/10
Geometrical modulation transfer function of different active pixel of CMOS APS (EI CONFERENCE) 会议论文  OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China
作者:  
Li J.;  Liu J.;  Liu J.;  Liu J.;  Li J.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
The geometrical Modulation Transfer Function (MTF) of CMOS APS (active pixel sensor) is analyzed in this paper. Advanced APS have been designed and fabricated where different pixel shapes such as square  rectangle and L shape  were placed  because the amplifier circuit and other function circuits inter pixel of APS take up some pixel area. MTF is an important figure of merit in focal plane array imaging sensors. Research on analyzing the MTF for the proper pixel shape is currently in progress for a centroidal configuration of a target position. MTF will give us a more complete understanding of the tradeoffs opposed by the different pixel designs and by the signal processing conditions. Based on image sensor sampling and reconstructing model  the MTF expression of any active pixel shape has been deduced in this paper. According to actual pixel shape  three different active area pixels were analyzed  they were square  rectangle  and L shape  their Fill Factor (FF) is 30%  44% and 55%  respectively. Results of simulation experiments indicate that different pixel geometrical characteristics contribute significantly to the figures of their MTF. Different geometrical shape of active sensitive area of pixel and different station in pixel would influence MTF figures. The analysis results are important in designing better APS pixel and more important in analyzing imaging system performance of APS subpixel precision system.