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Chinese Academy of Sciences Institutional Repositories Grid
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Six-year removal of co-dominant grasses alleviated competitive pressure on subdominant grasses but dominant shrub removal had neutral effects in a subalpine ecosystem 期刊论文  OAI收割
GLOBAL ECOLOGY AND CONSERVATION, 2020, 卷号: 23
作者:  
Li, Wenjin;  Knops, Johannes M. H.;  Png, G. Kenny;  Yan, Xi;  Dong, Huan
  |  收藏  |  浏览/下载:46/0  |  提交时间:2020/11/25
Effect of loss of plant functional group and simulated nitrogen deposition on subalpine ecosystem properties on the Tibetan Plateau 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 卷号: 631-632
作者:  
Li, Wenjin;  Zhang, Rulan;  Liu, Shuangshuang
  |  收藏  |  浏览/下载:53/0  |  提交时间:2019/11/26
Testing biodiversity-ecosystem functioning relationship in the world's largest grassland: overview of the IMGRE project 期刊论文  OAI收割
LANDSCAPE ECOLOGY, 2015, 卷号: 30, 期号: 9, 页码: 1723-1736
作者:  
Wu, Jianguo;  Naeem, Shahid;  Elser, James;  Bai, Yongfei;  Huang, Jianhui
  |  收藏  |  浏览/下载:20/0  |  提交时间:2019/06/04
Spatial patterns of soil nutrients, plant diversity, and aboveground biomass in the Inner Mongolia grassland: before and after a biodiversity removal experiment 期刊论文  OAI收割
LANDSCAPE ECOLOGY, 2015, 卷号: 30, 期号: 9, 页码: 1737-1750
作者:  
Rowe, Helen;  Bai, Yongfei;  Huang, Jianhui;  Han, Xingguo;  Wu, Jianguo
  |  收藏  |  浏览/下载:36/0  |  提交时间:2019/06/04
Testing biodiversity-ecosystem functioning relationship in the world's largest grassland: overview of the IMGRE project 期刊论文  OAI收割
LANDSCAPE ECOLOGY, 2015, 卷号: 30, 期号: 9, 页码: 1723-1736
作者:  
Wu, Jianguo;  Naeem, Shahid;  Elser, James;  Bai, Yongfei;  Huang, Jianhui
  |  收藏  |  浏览/下载:38/0  |  提交时间:2022/09/13
Spatial patterns of soil nutrients, plant diversity, and aboveground biomass in the Inner Mongolia grassland: before and after a biodiversity removal experiment 期刊论文  OAI收割
LANDSCAPE ECOLOGY, 2015, 卷号: 30, 期号: 9, 页码: 1737-1750
作者:  
Yuan, Fei;  Wu, Jianguo;  Li, Ang;  Rowe, Helen;  Bai, Yongfei
  |  收藏  |  浏览/下载:41/0  |  提交时间:2022/09/13
Experiments on Channel Evolution due to Dam Removal in Taiwan 期刊论文  OAI收割
Journal of Mountain Science, 2014, 卷号: 11, 期号: 6, 页码: 1396-1405
WANG Hsiao-Wen; CHENG Ying-Che; LIN Chung-Yi
收藏  |  浏览/下载:52/0  |  提交时间:2014/11/18
Soil salinity management with drip irrigation and its effects on soil hydraulic properties in north China coastal saline soils EI期刊论文  OAI收割
2012
作者:  
Wan Shuqin;  Jiang Shufang
收藏  |  浏览/下载:24/0  |  提交时间:2014/12/31
Mechanisms and Factors Affecting Sorption of Microcystins onto Natural Sediments 期刊论文  OAI收割
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 卷号: 45, 期号: 7, 页码: 2641-2647
作者:  
Wu, Xingqiang
收藏  |  浏览/下载:38/0  |  提交时间:2011/06/30
Brazing RB-SiC used in large aperture space optical system (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Materials and Products Manufacturing Technology, ICMPMT 2011, October 28, 2011 - October 30, 2011, Chengdu, China
Zhang B.; Zhang Z.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
Because of the sic material's superior optical characteristic  machine characteristic and hot characteristic  it becomes currently the space big aperture reflector choose firstly1. For larger aperture sic mirror  it is not economical and safe to make the monolithic body directly 2  3. The SiC mirror brazed assembly with several segments can solve these problems. In this paper  one 600 mm sic plane mirror as demonstration welded with 3 radial segments is roughly grinded to the required figure at first  then the mirror is finely grinded and polished by the technology of CCOS  the mirror figure error is less than 1/20 ( = 632.8nm) in RMS finally. The problems of the preferential removal near braze joint are solved. The methods of reducing the residual stress of mirror are discussed. At last  some measurements and experiments are carried on  and the results conclude that the brazed SiC mirror can meet the requirement of large aperture optical systems. (2011) Trans Tech Publications.