中国科学院机构知识库网格
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浏览/检索结果: 共5条,第1-5条 帮助

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Planetary boundaries: Guiding human development on a changing planet 期刊论文  OAI收割
SCIENCE, 2015, 卷号: 347, 期号: 6223, 页码: -
Steffen, Will; Richardson, Katherine; Rockstrom, Johan; Cornell, Sarah E.; Fetzer, Ingo; Bennett, Elena M.; Biggs, Reinette; Carpenter, Stephen R.; de Vries, Wim; de Wit, Cynthia A.; Folke, Carl; Gerten, Dieter; Heinke, Jens; Mace, Georgina M.; Persson, Linn M.; Ramanathan, Veerabhadran; Reyers, Belinda; Sorlin, Sverker
收藏  |  浏览/下载:101/0  |  提交时间:2016/05/12
Cost-benefit analysis for urban rainwater harvesting in Beijing SCI/SSCI论文  OAI收割
2010
Zuo J. B.; Liu C. M.; Zheng H. X.
收藏  |  浏览/下载:22/0  |  提交时间:2012/06/08
Cost-benefit analysis for urban rainwater harvesting in beijing 期刊论文  iSwitch采集
Water international, 2010, 卷号: 35, 期号: 2, 页码: 195-209
作者:  
Zuo Jianbing;  Liu Changming;  Zheng Hongxing
收藏  |  浏览/下载:27/0  |  提交时间:2019/05/10
FPD grayscale control based on sub-space division (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Information Engineering and Computer Science, ICIECS 2009, December 19, 2009 - December 20, 2009, Wuhan, China
Chang F.; Wang R.-G.; Zheng X.-F.; Ding T.-F.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
IAD-Si coatings on RB-SiC space mirrors for ultra-smooth surfaces (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Xu L.;  Wang X.;  Wang X.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
To eliminate surface limitation caused by Silicon impurity in RB-SiC space mirrors  a relatively thick Si film is deposited on well finished RB-SiC substrate by a new process-ion assisted depositing (IAD) to provide a better polishable surface. Testing results of IAD-Si properties are provided  showing that the amorphous film has great thermal shock resistance. Then  polishing experiments on 100.5m thick IAD-Si layers are accomplished focusing on smoother surface. Surface figure and micro-roughness of the coating after polished reach 0.026 RMS (=0.6328nm) and less than 0.5nm RMS respectively. Moreover  reflectivity of IAD-Si polished surface with reflective films increases higher than 4.5% than that of RB-SiC in 360-1100nm. High reflectivity and desirable thermal property make IAD-Si an attractive coating material for RB-SiC space mirrors. 2009 SPIE.