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Future Physics Programme of BESIII * 期刊论文  OAI收割
CHINESE PHYSICS C, 2020, 卷号: 44, 期号: 4, 页码: 40001
作者:  
Ablikim, M.;  Achasov, M. N.;  Adlarson, P.;  Ahmed, S.;  Albrecht, M.
  |  收藏  |  浏览/下载:255/0  |  提交时间:2020/06/16
Future Physics Programme of BESIII 期刊论文  OAI收割
CHINESE PHYSICS C, 2020, 卷号: 44, 期号: 4, 页码: 40001
作者:  
Ablikim, M.;  Achasov, M. N.;  Adlarson, P.;  Ahmed, S.;  Albrecht, M.
  |  收藏  |  浏览/下载:85/0  |  提交时间:2021/09/27
Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China 期刊论文  OAI收割
WATER, 2016, 卷号: 8, 期号: 10, 页码: 15
作者:  
Li, Yanzhong;  Liu, Changming;  Liang, Kang
  |  收藏  |  浏览/下载:33/0  |  提交时间:2019/09/26
Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China 期刊论文  OAI收割
WATER, 2016, 卷号: 8, 期号: 10, 页码: 15
作者:  
Li, Yanzhong;  Liu, Changming;  Liang, Kang
  |  收藏  |  浏览/下载:16/0  |  提交时间:2019/09/26
Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China 期刊论文  OAI收割
WATER, 2016, 卷号: 8, 期号: 10, 页码: 15
作者:  
Li, Yanzhong;  Liu, Changming;  Liang, Kang
  |  收藏  |  浏览/下载:12/0  |  提交时间:2019/09/26
Search for the lepton flavor violation process J/psi -> e mu at BESIII 期刊论文  OAI收割
PHYSICAL REVIEW D, 2013, 卷号: 87, 期号: 11
作者:  
BesIII Collaboration
收藏  |  浏览/下载:27/0  |  提交时间:2015/12/02
Level 0 and level 1 data processing for a type of hyper-spectral imager (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 21, 2009, Shanghai, China
Li X.; Yan C.
收藏  |  浏览/下载:74/0  |  提交时间:2013/03/25
Hyper-spectral imaging (HSI) is a kind of optical remote sensor that can simultaneously obtain spatial and spectral information of ground targets. We are now designing a data processing system for a type of space-borne push-broom HSI  then it performs radiometric and spectral calibration based on the ground calibration results and onboard calibration collection. The detailed algorithms for bad pixel replacement  which has 128 spectral channels covering the spectral range from 400nm to 2500nm. With its large amount of spectral channels  radiometric and spectral calibration were presented. After processing  the HSI collects large volume of spectral imaging data need to be efficiently and accurately processed and calibrated. In this paper  the digital numbers downlinked from the spacecraft can be converted into at-sensor absolute spectral radiance of ground targets  the detailed Level 0 and Level 1 data processing steps for the HSI were presented. The Level 0 processing refers to a set of tasks performed on the data downlinked from the spacecraft  thus providing accurate quantified spectral imaging data for various applications. 2009 SPIE.  including decoding to extract science data  separating the science data into files corresponding to different tasks (e.g. ground imaging  dark imaging  and onboard calibration)  checking data integrity and instrument settings  data format conversion  and Level 0 files creation. The Level 1 processing performs several steps on Level 0 data. Firstly  it corrects the image artifacts (mostly the SWIR smear effect)  subtracts the dark background  and performs the bad pixel replacement according to the prelaunch measurement  
Energy transfer and red phosphorescence in strontium aluminates doped with Cr3+, Eu2+ and Dy3+ (EI CONFERENCE) 会议论文  OAI收割
Dielectrics in Emerging Technologies -and- Persistent Phosphors - International Symposia, May 15, 2005 - May 20, 2005, Quebec City, QC, Canada
作者:  
Wang X.;  Wang X.;  Wang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
Cr3+ activated red (694 nm) long persistent phosphorescence originating from 2E-4A2 transition is observed in 4SrO·7Al2O3: Cr3+  Eu2+  Dy3+ system. It is demonstrated that the red phosphorescence is resulted from the conversion of Eu2+ activated blue phosphorescence through persistence energy transfer from Eu2+ to Cr3+. The excitation spectra of the 694 nm emission exhibit strong f-d band of Eu 2+  indicating the existence of the energy transfer. The dependence of lifetimes and intensities of the red and blue emissions on Cr3+ concentrations are studied. The intensity ratio of the red to blue emission bands obtained from photoluminescence spectra is in good agreement with that obtained from fluorescence lifetime measurements. The decay curves of the red phosphorescence at 694nm are also studied.