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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European summer temperatures since Roman times SCI/SSCI论文  OAI收割
2016
作者:  
Luterbacher J.;  Werner, J. P.;  Smerdon, J. E.;  Fernandez-Donado, L.;  Gonzalez-Rouco, F. J.
  |  收藏  |  浏览/下载:49/0  |  提交时间:2017/11/09
Millennial minimum temperature variations in the Qilian Mountains, China: evidence from tree rings SCI/SSCI论文  OAI收割
2014
作者:  
Wang Y.;  Zhang Y.;  Zhang Y.
收藏  |  浏览/下载:62/0  |  提交时间:2014/12/24
Climatic implications of a 3585-year tree-ring width chronology from the northeastern Qinghai-Tibetan Plateau 期刊论文  OAI收割
QUATERNARY SCIENCE REVIEWS, 2010, 卷号: 29, 期号: 17-18, 页码: 2111-2122
作者:  
Liang EY(梁尔源)
收藏  |  浏览/下载:20/0  |  提交时间:2011/04/26
Climatic implications of a 3585-year tree-ring width chronology from the northeastern Qinghai-Tibetan Plateau SCI/SSCI论文  OAI收割
2010
作者:  
Xu Y.;  Xu Y.
收藏  |  浏览/下载:27/0  |  提交时间:2012/06/08
Reconstruction of temperature series of China for the last 1000 years 期刊论文  iSwitch采集
CHINESE SCIENCE BULLETIN, 2007, 卷号: 52, 期号: 23, 页码: 3272-3280
作者:  
Wang ShaoWu;  Wen XinYu;  Luo Yong;  Dong WenJie;  Zhao ZongCi
收藏  |  浏览/下载:23/0  |  提交时间:2019/10/08
Variation's of near-surface atmospheric CO2 and H2O concentrations during summer on Muztagata 期刊论文  OAI收割
SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 2006, 卷号: 49, 期号: 1, 页码: 18-26
作者:  
Yao TD(姚檀栋);  Xu BQ(徐柏青)
收藏  |  浏览/下载:21/0  |  提交时间:2010/06/08
Phase characteristics of laser beam in fibers (EI CONFERENCE) 会议论文  OAI收割
5th International Workshop on Adaptive Optics for Industry and Medicine, August 29, 2005 - September 1, 2005, Beijing, China
作者:  
Wang L.;  Wang L.;  Liu J.;  Liu J.;  Liu J.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
The phase changing rates1 of laser beam in single mode polarization maintaining fiber (PMF)  Yb-doped rectangular inner cladding dual-clad fiber (DCF) and Yb-doped large-mode-area dual-clad fiber (LMF) are investigated by means of interference under situations with different exterior disturbance  for situations that all the fibers are used as transmission medium only  as well as amplifying medium with the last two. In this paper  phase fluctuation characteristics of the beam transmitted through the fibers with no amplification are presented. The results show that the phase fluctuation frequencies of the laser beam transmitted through these three kinds of fibers are mainly in the range of 100-200Hz  100-300Hz and 80-400Hz respectively in normal laboratory environment. The phase fluctuation frequencies of the laser beam transmitted through the DCF  in cases of when the environment temperature is changing  a constant pressure is applied to the fiber and when vibration is applied  are mainly in the range of 100-600Hz  100Hz-300Hz and 100-500Hz respectively. In the same cases  for the LMF  the phase fluctuation frequencies are mainly in the range of 150-600Hz  100-400Hz and 100-1000Hz  respectively. It indicates that for realizing phase stabilization  the bandwidth of any potential phase control2 system has to be in the range of a few kilohertz.  
Reconstruction of precipitation variation from tree rings in recent 1000 years in Delingha, Qinghai SCI/SSCI论文  OAI收割
2005
作者:  
Huang L.
收藏  |  浏览/下载:27/0  |  提交时间:2012/06/08