中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共8条,第1-8条 帮助

条数/页: 排序方式:
Separation of a new triterpenoid saponin together with six known ones from Clematis tangutica (Maxim.) Korsh and evaluation of their cytotoxic activities 期刊论文  OAI收割
NATURAL PRODUCT RESEARCH, 2021
作者:  
Wei, Yangfei;  Chen, Tao;  Wang, Shuo;  Shen, Cheng;  Yan, Shuping
  |  收藏  |  浏览/下载:52/0  |  提交时间:2021/11/18
Synthesis, crystal structure, and optical properties of Ba2SbO2SX (X = Br, I) oxy-chalcohalides 期刊论文  OAI收割
JOURNAL OF SOLID STATE CHEMISTRY, 2019, 卷号: 278
作者:  
Luo, Mengjia;  Bu, Kejun;  Liu, Yiting;  Wang, Ruiqi;  Zhang, Xian
  |  收藏  |  浏览/下载:150/0  |  提交时间:2019/12/26
A new Ca3MgSi2O8 compound and some of its thermodynamic properties 期刊论文  OAI收割
JOURNAL OF SOLID STATE CHEMISTRY, 2017, 卷号: 255, 页码: 145-149
作者:  
Bao, Xinjian;  Zhang, Yanyao;  Zhang, Zhigang;  Zhang, Lifei;  Liu, Xiaoyang
  |  收藏  |  浏览/下载:36/0  |  提交时间:2017/11/24
A glycine ligand coordinated hybrid complex constructed from hexanuclear copper clusters and octamolybdates 期刊论文  OAI收割
Inorganic Chemistry Communications, 2011, 卷号: 14, 期号: 9, 页码: 1546-1549
X. Y. Jiang; X. Y. Wu; R. M. Yu; D. Q. Yuan; W. Z. Chen
收藏  |  浏览/下载:37/0  |  提交时间:2012/06/06
Study on infrared transparent radar double band-pass filter (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Mechatronics and Materials Processing, ICMMP 2011, November 18, 2011 - November 20, 2011, Guangzhou, China
Jia H. Y.; Feng X. G.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
To realize the functions of infrared transparent as well as radar double- pass Band  A Y loop and Y slot compound element Frequency Selective Surface (FSS) structure is proposed  which takes an infrared transparent inductive mesh as a substrate. The proposed structure is analyzed based on Galerkin spectral method. The transitivity of infrared (3um-5um) as well as the radar double passed band with two resonance frequencies (31GHz and 54GHz) is discussed. The result reveals that this structure has function of infrared transparent as well as stable radar double-band filter with effective shielding effect on S-band and C-band radar electromagnetic waves. The design with multiple passband is suitable for radar/IR composite guidance and it also offers a kind of new thinking way of design for multi-mode compound guidance systems. 2011 Trans Tech Publications.  
High resolution gray-scale modulation method based on linear superposition for LED displays (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Control, Automation and Systems Engineering, CASE 2011, July 30, 2011 - July 31, 2011, Singapore, Singapore
Feng Y.; Xu X.; Miao C.; Ding T.
收藏  |  浏览/下载:12/0  |  提交时间:2013/03/25
Design of compound Fresnel-R lenses for new high-efficient photovoltaic concentrator (EI CONFERENCE) 会议论文  OAI收割
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII, August 1, 2010 - August 4, 2010, San Diego, CA, United states
作者:  
Liu H.;  Liu H.;  Liu H.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
A new design of compound Fresnel-R concentrator is presented which is composed of two lenses: a primary lens (Fresnel lens) that works by total internal reflection at outer facets but refraction at inner facets  and a secondary lens that works by refraction. In contrast to previous Fresnel lens concentrator  this design increases the acceptance angle  improves the irradiance uniformity on the solar cell  and reduces the aspect ratio significantly. Another outstanding advantage of this concentrator is the fact that it mainly works by performing total internal reflection  reducing chromatic dependence as well as Fresnel losses. An optical efficiency more than 80% can be achieved. Moreover  in order to reduce the influence of manufacture accuracy and to increase the optical efficiency further  the central part of the bottom of the secondary lens which directly adhered to the solar cell is designed as a cone-shaped prism to collect the sunlight that doesn't reach the solar cell. 2010 SPIE.  
Compound telescope (EI CONFERENCE) 会议论文  OAI收割
Novel Optical Systems Design and Optimization IX, August 15, 2006 - August 16, 2006, San Diego, CA, United states
作者:  
Liu H.;  Liu H.;  Sun Q.;  Li F.;  Liu H.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25