中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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特殊工况下的聚酰亚胺自润滑复合材料设计及摩擦磨损机理研究 学位论文  OAI收割
北京: 中国科学院大学, 2020
作者:  
段春俭
  |  收藏  |  浏览/下载:292/0  |  提交时间:2021/04/13
Vacancy effects on the formation of He and Kr cavities in 3C-SiC irradiated and annealed at elevated temperatures 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2016, 卷号: 389, 页码: 40-47
作者:  
Zang, Hang;  Wang, Zhiguang;  Yun, Di;  He, Chaohui;  Li, Tao
  |  收藏  |  浏览/下载:62/0  |  提交时间:2018/05/31
Experiment analysis of CO2 laser disturbance on long-wave infrared HgCdTe detector (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:  
Wang S.-W.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
Theoretical analysis and experimental study were carried out on the high-power CO2 laser disturbance to long-wave infrared (LWIR) HgCdTe detector in this paper. Based on the practical parameters of experiment  the theoretical model of temperature-rise is adopted to calculate the variation of the temperature with the time and the power of laser for laser irradiation on the detector. After that  the damage threshold is 110W/cm2. This experimental phenomenon well agrees with the results predicted by the theoretical calculation. The conclusions have a certain reference value for the laser defense of detector. 2011 IEEE.  the high-power laser damage mechanism to LWIR detector is discussed  and compares with the experimental results of laser irradiation the detector on the distance of 15km. The theoretical and experimental results demonstrate that the interference threshold of the detector is 20.5W/cm 2  
Optical characterization of bare CdSe and CdSe/CdS core/shell nanocrystals (EI CONFERENCE) 会议论文  OAI收割
ICO20: Biomedical Optics, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Liu L.;  Yu B.;  Liu L.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
Thiol-capped CdSe/CdS core/shell nanocrystals (NCs) which show high luminescence quantum yield are synthesized in an aqueous solution. UV-Vis absorption spectroscopy and photoluminescence (PL) spectroscopy are employed to analyze optical characters and stabilities of NCs. Furthermore  PL properties are studied in a temperature range between 77K and 300K. The PL peak position of bare CdSe NCs shifts toward shorter wavelengths and the band becomes sharper with decreasing temperature. On the same condition  the PL peak position of CdSe/CdS core/shell NCs keeps unconverted nearly with the variation of temperature. Photostability of bare CdSe NCs and CdSe/CdS core/shell NCs are compared under the 325nm laser irradiation. It takes 78 seconds that the PL intensity declines to the half for CdSe NCs  but 442 seconds for CdSe/CdS core/shell NCs. The fluorescence decay lifetime increases about six times after overcoating. The results indicate that the CdS shell can improve the low temperature PL stability and photostability of CdSe NCs effectively.  
Photosynthetic characteristics of linze jujube in conditions of high temperature and irradiation 期刊论文  iSwitch采集
SCIENTIA HORTICULTURAE, 2005, 卷号: 104, 期号: 3, 页码: 339-350
作者:  
Su, PX;  Liu, XM
收藏  |  浏览/下载:15/0  |  提交时间:2019/10/08