中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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机动车排放超细颗粒物在线监测技术研究进展 期刊论文  OAI收割
大气与环境光学学报, 2020, 卷号: 15
作者:  
康士鹏;  余同柱;  桂华侨;  员永兴;  王焕钦
  |  收藏  |  浏览/下载:35/0  |  提交时间:2021/03/15
Energy transfer in Y3Al5O12:Ce 3, Pr3+ and CaMoO4:Sm3, Eu 3 phosphors (EI CONFERENCE) 会议论文  OAI收割
作者:  
Wang L.;  Wang X.-J.;  Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
Non-radiative energy transfers (ET) from Ce3 to Pr3+ in Y3Al5O12:Ce3  Pr3+ and from Sm3 to Eu3 in CaMoO4:Sm3  Eu3 are studied based on photoluminescence spectroscopy and fluorescence decay patterns. The result indicates an electric dipoledipole interaction that governs ET in the LED phosphors. For Ce3 concentration of 0.01 in YAG:Ce3  Pr3+  the rate constant and critical distance are evaluated to be 4.510-36 cm 6 s-1 and 0.81 nm  respectively. An increase in the red emission line of Pr3+ relative to the yellow emission band of Ce 3  on increasing Ce3 concentration is observed. This behavior is attributed to the increase of spectral overlap integrals between Ce3 emission and Pr3+ excitation due to the fact that the yellow band shifts to the red spectral side with increasing Ce3 concentration. In CaMoO4:Sm3  Eu3  Sm 3Eu3 transfer occurs from 4G5/2 of Sm3 to 5D0 of Eu3. The rate constant of 8.510-40 cm6 s-1 and the critical transfer distance of 0.89 nm are evaluated. 2010 Elsevier B.V. All rights reserved.  
Dome design and coupled thermal-mechanical analysis of supersonic missile (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 22, 2009, Shanghai, China
Xing-qiao A.; Qun W.; Hong-guang J.
收藏  |  浏览/下载:59/0  |  提交时间:2013/03/25
A review of high-speed flow pressure and aerodynamic heating effect on Supersonic missile's dome is given. The dome should have excellent properties in optical  mechanical and chemical characteristics. A design of dome on supersonic mode is described according to tactical guide line of a missile. The dome made of quartz which is about 8mm thick and 141mm in window diameter. To check up the reliability of the dome  a reasonable finite element model (FEM) of dome is established  and a thermal-mechanical Analysis to the dome by finite element software NASTRAN has carried on  through these can obtained the distribution of temperature field and stress field when the speed is 2.3Ma. The results indicated that the stress was concentrated in the joint of the dome end and the Missile Section  and the maximum stress was 16.4Mpa. The stress of other nodes was smaller than the allowable stress of quartz glass. Reference to the results of the analysis  a lightweight revision to the dome structural dimension and a new method of dome fixing have put forward  which can reduce the stress concentration. 2009 SPIE.  
植物黄酮类化合物的分离分析方法研究 学位论文  OAI收割
博士: 中国科学院研究生院, 2008
罗米娜
收藏  |  浏览/下载:50/0  |  提交时间:2013/04/27
On-line concentration of peptides and proteins with the hyphenation of polymer monolithic immobilized metal affinity chromatography and capillary electrophoresis 期刊论文  OAI收割
electrophoresis, 2005, 卷号: 26, 期号: 11, 页码: 2172-2178
作者:  
Zhang, LY;  Zhang, LH;  Zhang, WB;  Zhang, YK
收藏  |  浏览/下载:23/0  |  提交时间:2010/11/30
On-line concentration of proteins in pressurized capillary electrochromatography coupled with electrospray ionization-mass spectrometry 期刊论文  OAI收割
electrophoresis, 2005, 卷号: 26, 期号: 7-8, 页码: 1398-1405
作者:  
Liang, Z;  Zhang, LH;  Duan, JC;  Yan, C;  Zhang, WB
收藏  |  浏览/下载:21/0  |  提交时间:2010/11/30
Determination of ciprofloxacin in plasma by micelle capillary electrophoresis on-line sweeping concentration technique 期刊论文  OAI收割
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY, 2004, 卷号: 32, 期号: 4, 页码: 485-488
作者:  
Zhao, YY;  Yang, GL;  Yan, HY;  Yu, Q;  Chen, Y
  |  收藏  |  浏览/下载:22/0  |  提交时间:2019/04/09
On-line concentration of neutral and charged species in capillary electrochromatography with a methacrylate-based monolithic stationary phase 期刊论文  OAI收割
electrophoresis, 2004, 卷号: 25, 期号: 3, 页码: 421-427
作者:  
Ping, GC;  Zhang, YK;  Zhang, WB;  Zhang, L;  Zhang, LH
收藏  |  浏览/下载:24/0  |  提交时间:2010/11/30