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Design and analysis of radial supports for a large aperture prism
会议论文
Shanghai, China, 2021-10-28
作者:
Wen, Wansha
;
Ruan, Ping
;
Lv, Tao
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浏览/下载:112/0
  |  
提交时间:2022/03/18
large aperture prism
radial support
finite element analysis
optical surface evaluation
Design of control system for atmospheric dispersion correctors based on UMAC
会议论文
Beijing, China, 2021-7(23-25)
作者:
Xu J(徐进)
;
Kou SF(寇松峰)
;
Le ZY(乐中宇)
;
Gu BZ(顾伯忠)
;
Yang SH(杨世海)
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  |  
浏览/下载:15/0
  |  
提交时间:2022/04/01
Astronomical Telescope
Atmospheric Dispersion
Atmospheric Dispersion Correctors
Control Sys- tem Design
ELT-HIRES the High Resolution Spectrograph for the ELT: Status of the polarization ray tracing tool for the polarimetric unit
会议论文
Virtual, Online, United states, 2020-12-14
作者:
Di Varano, I.
;
Yuan S(袁沭)
;
Woche, M.
;
Strassmeier, K.G.
;
Weber, M.
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  |  
浏览/下载:42/0
  |  
提交时间:2021/02/10
ELT instruments
integrated modeling
spectropolarimetry
Mueller matrix
polarization ray tracing
ELT-HIRES the High Resolution Spectrograph for the ELT: simulation results of polarimetric aberrations for the Polarimetric module
会议论文
Munich, GERMANY, 2019-06-24
作者:
Di Varano, I
;
Yuan S(袁沭)
;
Woche, M.
;
Strassmeier, K. G.
;
Weber, M.
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  |  
浏览/下载:38/0
  |  
提交时间:2019/12/30
Elt Instruments
Integrated Modeling
Spectropolarimetry
Mueller Matrix
Polarization Ray Tracing
Identification of multiple outdoor contaminant sources with monitoring station data
会议论文
18th International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes, HARMO 2017, Bologna, Italy, 2017-10-09
作者:
Xue, Yu
;
Zhai, Zhiqiang John
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  |  
浏览/下载:4/0
  |  
提交时间:2019/12/02
Research progress of large optics in the TMT MOBIE
会议论文
作者:
Zhang, Weili
;
Lu, Qi
;
Gao, Wenlan
;
Wang, Jianguo
;
Wei, Zhaoyang
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  |  
浏览/下载:16/0
  |  
提交时间:2017/12/25
Chemically Reactive Pollutant Dispersion over Urban Street Canyons
会议论文
The 13th International Conference on Atmospheric Sciences and Applications to Air Quality (ASAAQ13), 日本神户
作者:
Tangzheng Du
;
Chun-Ho Liu
;
Yubo Zhao
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  |  
浏览/下载:12/0
  |  
提交时间:2016/01/27
CO2PipeHaz: quantitative hazard assessment for next generation CO2 pipelines
会议论文
12th International Conference on Greenhouse Gas Control Technologies (GHGT), Austin, TX, 2014-10-05
作者:
Woolley, Robert M.
;
Fairweather, Michael
;
Wareing, Christopher J.
;
Falle, Samuel A. E. G.
;
Mahgerefteh, Haroun
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浏览/下载:8/0
  |  
提交时间:2019/12/09
CCS
CO2
multi-phase flow
atmospheric dispersion
mathematical modelling
pipeline depressurisation
experimental measurement
Evaluation of the operating range for ground-based infrared imaging tracking system (EI CONFERENCE)
会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
Zhang B.
;
Zhang Z.-D.
;
Zhang S.-M.
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浏览/下载:33/0
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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).
THE DESIGN AND RESEARCH OF ATMOSPHERIC POLLUTION DISPERSION SIMULATION EVALUATION INFORMATION SYSTEM
会议论文
成都, 2010年1月1日
-
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浏览/下载:2/0
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提交时间:2019/12/09
ATMOSPHERIC POLLUTION
INTEGRATION
SIMULATION
EVALUATION
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