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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共13条,第1-10条 帮助

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Global Critical Drought Thresholds of Terrestrial Carbon Sink-Source Transition 期刊论文  OAI收割
GLOBAL CHANGE BIOLOGY, 2025, 卷号: 31, 期号: 3, 页码: e70129
作者:  
Guo, Wenwen;  Huang, Shengzhi;  Liu, Laibao;  Leng, Guoyong;  Huang, Qiang
  |  收藏  |  浏览/下载:5/0  |  提交时间:2025/04/21
A risk-based approach for accurately delineating the extent of soil contamination: The role of additional sampling in transition zones 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2024, 卷号: 908, 页码: 168231
作者:  
Tao, Huan;  Luo, Lingzhi;  Li, You;  Zhao, Dan;  Cao, Hongying
  |  收藏  |  浏览/下载:23/0  |  提交时间:2024/01/04
The negative-positive feedback transition thresholds of meteorological drought in response to agricultural drought and their dynamics 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2024, 卷号: 906, 页码: 15
作者:  
Wei, Xiaoting;  Huang, Shengzhi;  Li, Jianfeng;  Huang, Qiang;  Leng, Guoyong
  |  收藏  |  浏览/下载:25/0  |  提交时间:2023/12/22
H-mode operation in helium plasma with tungsten divertor and low input torque in EAST 期刊论文  OAI收割
NUCLEAR FUSION, 2020, 卷号: 60
作者:  
Zhang, B.;  Gong, X.;  Qian, J.;  Ding, R.;  Huang, J.
  |  收藏  |  浏览/下载:61/0  |  提交时间:2020/10/26
Climate-induced abrupt shifts in structural states trigger delayed transitions in functional states 期刊论文  OAI收割
ECOLOGICAL INDICATORS, 2020, 卷号: 115, 页码: 8
作者:  
Hao, Yanbin;  Liu, Wenjun;  Xu, Xingliang;  Munson, Seth M.;  Kang, Xiaoming
  |  收藏  |  浏览/下载:26/0  |  提交时间:2021/03/18
A new model of the L-H transition and H-mode power threshold 期刊论文  OAI收割
PLASMA SCIENCE & TECHNOLOGY, 2018, 卷号: 20, 期号: 9, 页码: 12
作者:  
Wu, Xingquan;  Xu, Guosheng;  Wan, Baonian;  Rasmussen, Jens Juul;  Naulin, Volker
  |  收藏  |  浏览/下载:28/0  |  提交时间:2019/12/11
On the role of the edge density profile for the L-H transition power threshold in ASDEX Upgrade 期刊论文  OAI收割
PLASMA PHYSICS AND CONTROLLED FUSION, 2016, 卷号: 58, 期号: 2, 页码: 025004
作者:  
Shao, L. M.;  Wolfrum, E.;  Ryter, F.;  Birkenmeier, G.;  Laggner, F. M.
收藏  |  浏览/下载:24/0  |  提交时间:2017/07/28
L-H power threshold studies with tungsten/carbon divertor on the EAST tokamak 期刊论文  OAI收割
RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2016, 卷号: 171, 期号: 5-6, 页码: 359-373
作者:  
Chen, L.;  Xu, G. S.;  Gao, W.;  Zhang, L.;  Nielsen, A. H.
收藏  |  浏览/下载:31/0  |  提交时间:2017/12/18
Ray feature analysis for volume rendering 期刊论文  OAI收割
MULTIMEDIA TOOLS AND APPLICATIONS, 2015, 卷号: 74, 期号: 18, 页码: 7621-7641
作者:  
Yang, Fei;  Yang, Feng;  Li, Xiuli;  Tian, Jie
收藏  |  浏览/下载:25/0  |  提交时间:2015/10/13
Theoretical analysis of 980nm high power Vertical External-cavity Surface-emitting Semiconductor Laser (VECSEL) (EI CONFERENCE) 会议论文  OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang L.-J.;  Wang L.-J.;  Ning Y.-Q.;  Qin L.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
By using bottom-emitting structure  we will develop laser diode (LD) pumped 980 nm VECSEL with active region of InGaAs/GaAsP/AlGaAs system. Because the thickness of barrier layer and absorption layer exceed that of quantum well  single well approximation model (KP method) can be used to calculate the band structure of VECSEL. The Schrodinger equation of finite deep potential well can be adopted to calculate the energy level structures of electron  heavy and light holes. According to the transition selection rule  we theoretically obtained the emitting wavelength of VECSEL and calculated quasi-Femi energy of valence band and conduction band based on the analysis of energy level structure of electron and holes. By analyzing the gain of strained quantum wells  we calculated the gain of VECSEL using transition matrix elements of electron  heavy and light holes. We give out the threshold gain  output power and other characteristic parameters. We will study the configuration of VECSEL and pumping scheme. We designed external cavity mirror  active region and bottom-emitting structure. A LD-pumped vertical external cavity surface-emitting laser whose output power is greater than 1.0 W can be predicted.