中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共9条,第1-9条 帮助

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Modeling Heterogeneity in Direct Infectious Disease Transmission in a Compartmental Model 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2016, 卷号: 13, 期号: 3
作者:  
Kong, Lingcai;  Wang, Jinfeng;  Han, Weiguo;  Cao, Zhidong
收藏  |  浏览/下载:49/0  |  提交时间:2016/10/20
Modeling Heterogeneity in Direct Infectious Disease Transmission in a Compartmental Model SCI/SSCI论文  OAI收割
2016
作者:  
Kong L. C.;  Wang, J. F.;  Han, W. G.;  Cao, Z. D.
  |  收藏  |  浏览/下载:44/0  |  提交时间:2017/11/09
Homogeneous phase separation in polymer:fullerene bulk heterojunction organic solar cells 期刊论文  OAI收割
ORGANIC ELECTRONICS, 2015, 卷号: 25, 页码: 266-274
作者:  
Xu, Wei-Long;  Wu, Bo;  Zheng, Fei;  Wang, Hua-Bin;  Wang, Yu-Zhu
  |  收藏  |  浏览/下载:118/0  |  提交时间:2018/03/15
Synthesis of Cellulose Acetates with Low Degree of Substituent and Their Water Solubility 期刊论文  OAI收割
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2008, 卷号: 29, 期号: 10, 页码: 2115-2117
作者:  
Cao Yan;  Li Hui-Quan;  Zhang Yi;  Zhang Jun;  He Jia-Song
  |  收藏  |  浏览/下载:18/0  |  提交时间:2019/04/09
Synthesis of Cellulose Acetates with Low Degree of Substituent and Their Water Solubility 期刊论文  OAI收割
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2008, 卷号: 29, 期号: 10, 页码: 2115-2117
作者:  
Cao Yan;  Li Hui-Quan;  Zhang Yi;  Zhang Jun;  He Jia-Song
收藏  |  浏览/下载:27/0  |  提交时间:2013/10/08
A simple model for reconstructing geomagnetic field intensity with (10)be production rate and its application in loess studies 期刊论文  iSwitch采集
Science in china series d-earth sciences, 2008, 卷号: 51, 期号: 6, 页码: 855-861
作者:  
Xian Feng;  An ZhiSheng;  Wu ZhenKun;  Beck, J. Warren;  Yu HuaGui
收藏  |  浏览/下载:40/0  |  提交时间:2019/05/10
High power VCSEL device with periodic gain active region (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China
作者:  
Zhang Y.;  Liu Y.;  Liu Y.;  Liu Y.;  Qin L.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
High power vertical cavity surface emitting lasers with large aperture have been fabricated through improving passivation  lateral oxidation and heat dissipation techniques. Different from conventional three quantum well structure  a periodic gain active region with nine quantum wells was incorporated into the VCSEL structure  with which high efficiency and high power operation were expected. The nine quantum wells were divided into three groups with each of them located at the antinodes of the cavity to enhance the coupling between the optical field and the gain region. Large aperture and bottom-emitting configuration was used to improve the beam quality and the heat dissipation. A maximum output power of 1.4W was demonstrated at CW operation for a 400m-diameter device. The lasing wavelength shifted to 995.5nm with a FWHM of 2nm at a current of 4.8A due to the internal heating and the absence of active water cooling. A ring-shape farfield pattern was induced by the non-homogeneous lateral current distribution in large diameter device. The light intensity at the center of the ring increased with increasing current. A symmetric round light spot at the center and single transverse mode operation with a divergence angle of 16 were observed with current beyond 4.8A.  
Homogeneous acetylation and regioselectivity of cellulose in a new ionic liquid 期刊论文  OAI收割
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2006, 卷号: 27, 期号: 3, 页码: 592-594
作者:  
Wu, J;  Zhang, H;  Zhang, J;  He, JS
  |  收藏  |  浏览/下载:15/0  |  提交时间:2019/04/09
Polydispersity of ethylene sequence length in metallocene ethylene/alpha-olefin copolymers. I. Characterized by thermal-fractionation technique 期刊论文  OAI收割
journal of polymer science part b-polymer physics, 2002, 卷号: 40, 期号: 9, 页码: 813-821
Zhang FJ; Liu JP; Fu Q; Huang HY; Hu ZJ; Yao S; Cai XY; He TB
收藏  |  浏览/下载:209/37  |  提交时间:2010/11/03