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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A State-Dependent Hypoplastic Bounding Surface Model for Gassy Sand 期刊论文  OAI收割
JOURNAL OF MARINE SCIENCE AND ENGINEERING, 2023, 卷号: 11, 期号: 3, 页码: -
作者:  
Wang, Mingyuan;  Sun, Jizhu;  Wang, Yong
  |  收藏  |  浏览/下载:18/0  |  提交时间:2023/08/02
Experimental and Modeling Study of Kinetics for Hydrate Decomposition Induced by Depressurization in a Porous Medium 期刊论文  OAI收割
FRONTIERS IN ENERGY RESEARCH, 2021, 卷号: 9, 页码: 16
作者:  
Ruan, Xuke;  Xu, Chun-Gang;  Yan, Ke-Feng;  Li, Xiao-Sen
  |  收藏  |  浏览/下载:9/0  |  提交时间:2023/11/20
环渤海芦苇湿地磷的吸附容量及释放风险评估 期刊论文  OAI收割
环境科学, 2020, 卷号: 41, 期号: 2, 页码: 728-733
作者:  
宋佳伟;  徐刚;  张扬;  吕迎春
  |  收藏  |  浏览/下载:42/0  |  提交时间:2020/07/08
Industrialization of a FeSiBNbCu nanocrystalline alloy with high B-s of 1.39T and outstanding soft magnetic properties 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2018, 卷号: 29, 期号: 22, 页码: 19517-19523
作者:  
Zhang, Guoyang;  Liu, Xincai;  Li, Run-wei;  Li, Hu;  He, Aina
  |  收藏  |  浏览/下载:53/0  |  提交时间:2018/12/04
Industrialization of a FeSiBNbCu nanocrystalline alloy with high B-s of 1.39T and outstanding soft magnetic properties 期刊论文  OAI收割
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2018, 卷号: 29, 期号: 22, 页码: 19517-19523
作者:  
Li, Run-wei;  Liu, Xincai;  Xiao, Huiyun;  Wang, Anding;  Zhao, Chengliang
  |  收藏  |  浏览/下载:46/0  |  提交时间:2018/12/04
An approach to computing topographic wetness index based on maximum downslope gradient SCI/SSCI论文  OAI收割
2011
作者:  
Pei T.
收藏  |  浏览/下载:26/0  |  提交时间:2012/06/08
Investigation of changes in properties of water under the action of a magnetic field 期刊论文  OAI收割
Science in China Series G-Physics Mechanics & Astronomy, 2008, 卷号: 51, 期号: 11, 页码: 1621-1632
X. F. Pang; B. Deng
收藏  |  浏览/下载:28/0  |  提交时间:2012/04/13
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:24/0  |  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.