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CAS IR Grid
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地理科学与资源研究所 [1]
长春光学精密机械与物... [1]
青岛生物能源与过程研... [1]
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OAI收割 [4]
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The effect of pH, nitrate, iron (III) and bicarbonate on photodegradation of oxytetracycline in aqueous solution
期刊论文
OAI收割
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2018, 卷号: 356, 页码: 239-247
作者:
Li, Chanjuan
;
Zhang, Dahai
;
Peng, Jialin
;
Li, Xianguo
  |  
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2018/09/06
Oxytetracycline
Photodegradation
Ph
Comprehensive Effect
Simulated Sunlight
南方某河流型水源腥臭味物质识别与控制研究
学位论文
OAI收割
博士, 北京: 中国科学院研究生院, 2016
作者:
郭庆园
收藏
  |  
浏览/下载:61/0
  |  
提交时间:2017/07/07
腥臭味,嗅味物质识别,全二维气相色谱-高分辨飞行时间质谱,嗅味活性值,嗅味协同/抑制效应
Septic odor, Odorant identification, Comprehensive two-dimensional gas chromatography with time of flight mass spectrometry, Odor activity value, Synergistic and suppressing effect
Evaluation and optimization of the spatial organization of the petrochemical industry in China
SCI/SSCI论文
OAI收割
2013
Liu H.
;
Jin F. J.
;
Liu Y.
;
Ding J. X.
;
Xu X.
收藏
  |  
浏览/下载:46/0
  |  
提交时间:2014/12/24
petrochemical industry
spatial organization
layout optimization
maximum coverage model
comprehensive layout coefficient
spatial effect
Evaluation of the operating range for ground-based infrared imaging tracking system (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Zhang Z.-D.
收藏
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浏览/下载:50/0
  |  
提交时间:2013/03/25
Ground-based infrared imaging tracking system (GIITS) is of great importance for aerial target warning and guard. The operating range is one of the key performance specifications
on the other
which should be calculated
calculate the radiation power received on the detector in order to analysis whether the output signal meets the detection requirements or not
analyzed and studied during the whole GIITS design process. The operating range is mostly influenced by a few factors
without considering the effect of the background radiation. By improving of the traditional method
including atmospheric attenuation
a new operating range calculation model of the GIITS was established based on two requirements. One is that the image size of observed target should meet the requirement of the processor signal extraction. The number of the pixel occupied by target image should be more than 9. The other is that the signal noise ratio (SNR) of the GIITS should not be less than 5 to meet the requirements of the target detection probability and spatial frequency. The SNR calculation equation in form of energy is deduced and the radiation characteristic of the observed target and background are analyzed. When evaluate the operating range of the GIITS using the new method
the performance of GIITS and feature of target and background. This paper firstly makes analysis and summarization on the definite localizations of the traditional operating range equation of the GIITS. The localizations are mainly in two aspects. On one hand
we should successively calculate two operating range values according to two requirements mentioned above and choose the minimum value as the analytic result. In the end
the dispersion of the image and the effect of image dispersion are not considered in the traditional method
an evaluation of operating range for fighter aircraft is accomplished as an example. The influence factors in every aspect on operating range were explored by the calculated result. The new operating range calculation model provides the theoretical basis for the design and applications as well as the comprehensive evaluation of a GIITS. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).