中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Geometry-based propagation of temporal constraints 期刊论文  OAI收割
INFORMATION SYSTEMS FRONTIERS, 2017, 卷号: 19, 期号: 4, 页码: 855-868
作者:  
Li, Zhaoyu;  Xu, Rui;  Cui, Pingyuan;  Xu, Lida;  He, Wu
  |  收藏  |  浏览/下载:35/0  |  提交时间:2019/12/12
Quantum statistics of the collective excitations of an atomic ensemble inside a cavity 期刊论文  OAI收割
PHYSICAL REVIEW A, 2012, 卷号: 85, 期号: 2, 页码: 23801
作者:  
Sun, CP
收藏  |  浏览/下载:20/0  |  提交时间:2014/04/25
Observation of N-Shaped Negative Differential Resistance in GaAs-Based Modulation-Doped Field Effect Transistor with InAs Quantum Dots 期刊论文  OAI收割
japanese journal of applied physics, 2010, 卷号: 49, 期号: 10, 页码: art. no. 104002
Li YQ (Li Yueqiang); Wang XD (Wang Xiaodong); Xu XN (Xu Xiaona); Liu W (Liu Wen); Chen YL (Chen Yanling); Yang FH (Yang Fuhua); Tan PH (Tan Pingheng); Zeng YP (Zeng Yiping)
收藏  |  浏览/下载:37/0  |  提交时间:2010/11/14
Fabrication technique of large-scale lightweight SiC space mirror (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Zhang G.;  Zhang G.;  Zhang G.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
Silicon carbide (SiC) is a new type candidate material for large-scale lightweight space mirror. Its low thermal distortion  high stiffness  high optical quality  and its dimensional stability are better than other traditional optical substrate materials such as ULE  Zerodure  Beryllium (Be) and so on. In this paper  the lightweight silicon carbide space mirror blank was fabricated by reaction sintering. As a space born mirror material  silicon carbide must be an optical grade ceramic. So we prepared the silicon carbide green body with gel-casting method. Then some carbon materials were supplemented into the green body which will bring reaction-sintering with silicon in a vacuum furnace during 1500-1600C  ultimately the reaction bonded silicon carbide was made. The diameter of SiC space mirror blank we have made is 680mm. If expanding the size of the vacuum furnace  bigger mirror blank can be obtained. The test results show that the mechanical and thermal properties of RB-SiC are excellent with bending strength of 350MPa  fracture toughness of 4.1 MPa·m1/2 and coefficient of thermal expansion(CET) of 2.6710-6/K. The surface roughness(RMS) could be better than 3nm.  
Two organically templated niobium and zinconiobium fluorophosphates: Low temperature hydrothermal syntheses of NbOF(PO4)(2)(C2H10N2)(2) and Zn-3(NbOF)(PO4)(4)(C2H10N2)(2) 期刊论文  OAI收割
Inorganic Chemistry, 2007, 卷号: 46, 期号: 1, 页码: 231-237
G. Z. Liu; S. T. Zheng; G. Y. Yang
收藏  |  浏览/下载:20/0  |  提交时间:2013/04/01
On the (2+1)-dimensional integrable inhomogeneous Heisenberg ferromagnet equation 期刊论文  OAI收割
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 卷号: 75, 期号: 10, 页码: 3
作者:  
Zhang, Zhen-Huan;  Deng, Ming;  Zhao, Wei-Zhong;  Wu, Ke
  |  收藏  |  浏览/下载:12/0  |  提交时间:2018/07/30