CORC

浏览/检索结果: 共18条,第1-10条 帮助

已选(0)清除 条数/页:   排序方式:
机动车排放超细颗粒物在线监测技术研究进展 期刊论文
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:13/0  |  提交时间:2021/03/15
Spectral analysis of alkane gases of coal spontaneous combustion with a small quantity sample 期刊论文
Meitan Xuebao/Journal of the China Coal Society, 2015, 卷号: 40, 期号: [db:dc_citation_issue], 页码: 371-376
作者:  Liang, Yun-Tao;  Sun, Yong;  Luo, Hai-Zhu;  Tang, Xiao-Jun;  Feng, Wen-Bin
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/02
On-line concentration and pressurized capillary electrochromatography analysis of five beta-agonists in human urine using a methacrylate monolithic column 期刊论文
ELECTROPHORESIS, 2015, 卷号: 36, 页码: 2720-2726
作者:  Chen, Zongbao;  Zhang, Lan;  Lu, Qiaomei;  Ye, Qing;  Zhang, Lin
收藏  |  浏览/下载:3/0  |  提交时间:2019/11/21
On-line capillary electrophoresis enrichment by combining chitosan trapping with surfactant assisted sample stacking for the ultratrace determination of organic acids in Plateau alfalfa roots 期刊论文
ANALYTICA CHIMICA ACTA, 2013, 卷号: 789
-
收藏  |  浏览/下载:3/0  |  提交时间:2014/12/05
Energy transfer in Y3Al5O12:Ce 3, Pr3+ and CaMoO4:Sm3, Eu 3 phosphors (EI CONFERENCE) 会议论文
Zhang J.; Wang L.; Jin Y.; Zhang X.; Hao Z.; Wang X.-J.
收藏  |  浏览/下载:31/0  |  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.  
On-line concentration and determination of tobacco-specific N-nitrosamines by cation-selective exhaustive injection-sweeping-micellar electrokinetic chromatography 期刊论文
talanta, 2010
Yang, Youyou; Nie, Honggang; Li, Chenchen; Bai, Yu; Li, Ning; Liao, Jie; Liu, Huwei
收藏  |  浏览/下载:6/0  |  提交时间:2015/11/10
Dome design and coupled thermal-mechanical analysis of supersonic missile (EI CONFERENCE) 会议论文
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:43/0  |  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.  
On-line Supervising System for Boiler Combustion of Power Station 会议论文
Asia-Pacific Power and Energy Engineering Conference (APPEEC), MAR 28-31, 2009
作者:  Zhou, Shoujun;  Zhao, Youen;  Guo, Min;  Tian, Maocheng
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/31
植物黄酮类化合物的分离分析方法研究 学位论文
博士: 中国科学院研究生院, 2008
罗米娜
收藏  |  浏览/下载:43/0  |  提交时间:2013/04/27
Study of Respirable Coal Mine Dust Concentration Detecting Method Based on Curve Fitting and Volume Calculation Method 会议论文
International Symposium on Information Science and Engineering, DEC 20-22, 2008
作者:  Cheng Xue-zhen;  Hao Hai-tao;  Li Liang-bao;  Cao Mao-yong
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/31


©版权所有 ©2017 CSpace - Powered by CSpace