机构

• 长春光学精密机械与物... [1]
• 水生生物研究所 [1]
• 武汉物理与数学研究所 [1]
• 广州能源研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2020 [1]
• 2016 [1]
• 2007 [1]
• 2000 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 新型人工浮岛强化降解污染物机理及应用研究 期刊论文  OAI收割 水处理技术, 2020, 卷号: 46, 期号: 5, 页码: 81 作者:  孔令为;  王齐瑞;  汪璐;  张义   |  收藏  |  浏览/下载：54/0  |  提交时间：2020/08/04 new type artificial floating island  natural polymer materials  slow-release solid carbon  luffa sponge  corncob  新型人工浮岛  天然高分子材料  缓释固体碳源  丝瓜络  玉米芯   Progress of new carbon material research in perovskite solar cells 期刊论文  OAI收割 acta physica sinica, 2016, 卷号: 65, 期号: 5 作者:  Wang Jun-Xia;  Bi Zhuo-Neng;  Liang Zhu-Rong;  Xu Xue-Qing 收藏  |  浏览/下载：28/0  |  提交时间：2016/12/05 perovskite solar cells  new carbon materials  counter electrode  electron and hole transport materials   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. 收藏  |  浏览/下载：28/0  |  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.   Recent advances in the application of C-13 and N-15 NMR spectroscopy to soil organic matter studies 期刊论文  OAI收割 AUSTRALIAN JOURNAL OF SOIL RESEARCH, 2000, 卷号: 38, 期号: 4, 页码: 769-787 作者:  Mathers, NJ;  Mao, XA;  Xu, ZH;  Saffigna, PG;  Berners-Price, SJ 收藏  |  浏览/下载：28/0  |  提交时间：2015/12/01 new NMR techniques  soil carbon pools  residue decomposition  magnetic materials  soil organic nitrogen