中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共8条,第1-8条 帮助

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Eccentric drop of a control rod in the guide tube with annular gap flow 期刊论文  OAI收割
NUCLEAR ENGINEERING AND DESIGN, 2023, 卷号: 415, 页码: 17
作者:  
  |  收藏  |  浏览/下载:12/0  |  提交时间:2024/02/26
The main and added effects of heat on mortality in 33 Chinese cities from 2007 to 2013 期刊论文  OAI收割
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING, 2023, 卷号: 17, 期号: 7, 页码: 81
作者:  
  |  收藏  |  浏览/下载:17/0  |  提交时间:2024/01/04
The lightweight design of the inner framework of the opto-electronic stabilization platform based on finite element analysis (EI CONFERENCE) 会议论文  OAI收割
2011 IEEE 18th International Conference on Industrial Engineering and Engineering Management, IE and EM 2011, September 3, 2011 - September 5, 2011, Changchun, China
Zou Q.; Ma H.-L.; Hu Y.; Ding J.-W.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
The airborne opto-electronic stabilization platform should have the characteristics of high requirements for stability  tracking accuracy and lightweight. In order to verify the rationality of the main load-bearing structure  the inner-gimbal  finite element analysis was performed. Because of the poor working conditions of the airborne opto-electronic stabilization platform and the wide range of working temperature variation  -45 C 60 C  according to the actual working environment  air-resistance and temperature were added to the loads of the inner-gimbal in analysis. What's more  based on the analysis results  lightweight design was performed to the initial model and 64.37% of mass was decreased. The remarkable effect was obtained. This research is going to be instructive to design and production of the airborne opto-electronic stabilization platform in the future. 2011 IEEE.  
Nonclassicality of photon-added squeezed vacuum states 期刊论文  OAI收割
CHINESE PHYSICS B, 2010, 卷号: 19, 页码: 6
作者:  
Si Kun;  Ji Xiao-Hui;  Jia Huan-Yu
  |  收藏  |  浏览/下载:11/0  |  提交时间:2018/05/31
Analysis of impact of gyroscope synthetical error on an electric-optical stabilized control system (EI CONFERENCE) 会议论文  OAI收割
3rd International Conference on BioMedical Engineering and Informatics, BMEI 2010, October 16, 2010 - October 18, 2010, Yantai, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.;  Jiang H.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
The spectral feature analysis of semiconductor thin disk laser (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China
作者:  
Li J.;  Wang L.-J.;  Wang L.-J.;  Ning Y.-Q.;  Li J.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
The semiconductor thin disk laser is a new type of semiconductor laser. This work gives the basic operation function of semiconductor disk laser  and analyses the heat effect by the experimentally measured photoluminescence spectrum of the laser chip at different pump power and different temperature. We can see that: with increasing pump power  the thermal effects of the gain material becomes seriously and causes the saturation of carrier lifetime  so the electron-hole pair created in the absorbtion layer have no enough time to rate to one of the wells  and the non-radiative recombination happens in the barrier. When the thermal effects becomes stronger  the chip will not lasing. This phenomenon is from the smaller energy offset between barrier and quantum well. We optimize the original structure design and experimental technology. A non-absorbing AlGaAs layer who is transparent to the pumping and laser wavelength is added to confine the carriers in the quantum wells. At the same time a DBR with double reflecting band is induced to improve the absorbing efficiency of the pumping light. The single QW is replaced by the three narrow QWs  This three QWs structure can add the quantum state of QW  increase the recombination probability of carriers in the QWs and reduce the heat effect. The chemical etch equipment is also improved to control the surface unevenness to be within 50 nm.  
Field-aided collection in gainp2 top solar cells 期刊论文  iSwitch采集
Solar energy materials and solar cells, 2003, 卷号: 80, 期号: 3, 页码: 265-272
作者:  
Chen, MB;  Cui, RQ;  Zhang, ZW;  Lu, JF;  Wang, LX
收藏  |  浏览/下载:24/0  |  提交时间:2019/05/12
Field-aided collection in GaInP2 top solar cells 期刊论文  OAI收割
solar energy materials and solar cells, 2003, 卷号: 80, 期号: 3, 页码: 265-272
Chen MB; Cui RQ; Zhang ZW; Lu JF; Wang LX; Chi WY; Xiang XB; Liao XB
收藏  |  浏览/下载:68/0  |  提交时间:2010/08/12