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浏览/检索结果: 共10条,第1-10条 帮助

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GW170817/GRB170817A from a binary neutron star merger 影音  OAI收割
2017,
作者:  
Dai ZG(戴子高)
  |  收藏  |  浏览/下载:19/0  |  提交时间:2017/11/24
Solution structure of the human HSPC280 protein 期刊论文  OAI收割
PROTEIN SCIENCE, 2011, 卷号: 20, 期号: 1, 页码: 216-223
Lin, Jinzhong; Zhou, Tao; Wang, Jinfeng; 王金凤
收藏  |  浏览/下载:20/0  |  提交时间:2013/12/25
A Low Power CMOS Front-End for Photoplethysmographic Signal Acquisition with Robust DC Photocurrent Rejection 期刊论文  OAI收割
IEEE Transactions on Biomedical Circuits and Systems, 2008, 卷号: 2, 期号: 4
作者:  
Wong, A.K.Y.;  Kong-Pang Pun;  Yuan-Ting Zhang;  Ka Nang Leung
收藏  |  浏览/下载:17/0  |  提交时间:2015/08/21
The synthesis and field emission property of carbon nanotubes on carbon fibers substrate (EI CONFERENCE) 会议论文  OAI收割
Technical Digest of the 20th International Vacuum Nanoelectronics Conference, IVNC 07, July 8, 2008 - July 12, 2008, Chicago, IL, United states
Leyong Z.; Weibiao W.; Jingqiu L.; Yuxue X.; Da L.; Song C.; Haifeng Z.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
Using ferrocene as catalyst precursor  C2H2 as carbon source  carbon nanotubes (CNTs) with uniform density were synthesized on carbon fibers substrate by floating catalyst method. The morphology and microstructure were characterized by field emission scanning electron microscope (FESEM) and high-resolution transmission electron microscopy (HRTEM). The observation showed that the length of CNTs is about 2 m  the average space between adjacent CNTs is about 300 nm and the diameter of CNT is about 45 nm. The less dense "short and stubby" aligned CNTs films should have good electron field emission characteristics. The results of field emission showed that the emission current of CNTs/carbon fibers was 5 A at the field of 2.5 V/m  and the emission current can be 280 A with a field of 7 V/m (the specimen area is 0.25 cm2 and the distance between cathode and anode is 200 m). The calculation based on the F-N plot indicated that the field enhancement factor of CNTs tip is 499122. Using the conductivity and chemical stability of carbon fibers and the uniform and sparse density distribution of CNTs on carbon fibers substrate  the tip predominance of carbon nanotubes can be exerted  and simultaneously the effect of screening effects between adjacent carbon nanotubes on the field emission performance can also be effectively decreased. The CNTs synthesized on carbon fibers substrate has many predominances for the fabrication of cold cathode devices. For example  using the removability of carbon fibers  the cathode of CNTs/carbon fibers can be arbitrarily moved  enlaced or combined to form different patterns  and the cathode of CNTs/carbon fibers can be also fabricated in large size. Therefore  CNTs/carbon fibers may have potential application in field emission displays.  
句法加工的事件相关电位研究 期刊论文  OAI收割
人类工效学, 2007, 卷号: 13, 期号: 2, 页码: 53-56
作者:  
张清芳
  |  收藏  |  浏览/下载:24/0  |  提交时间:2011/01/11
胃电信号的检测及频谱研究 会议论文  OAI收割
中华医学会2001年全国胃电图和胃肠动力研讨会, 中国深圳, 2001
贺毓民; 柯熙政
收藏  |  浏览/下载:26/0  |  提交时间:2012/10/19
一种基于通孔最少化的多层通道布线算法 学位论文  OAI收割
硕士: 中国科学院上海冶金研究所  , 2001
罗志宏  
收藏  |  浏览/下载:195/0  |  提交时间:2012/03/06
甲壳质/壳聚糖及其衍生物的应用化学 期刊论文  OAI收割
海洋科学, 1998, 期号: 5, 页码: 25-29
作者:  
李鹏程;  宋金明
收藏  |  浏览/下载:26/0  |  提交时间:2013/10/08
海水中颗粒有机碳研究简述 期刊论文  OAI收割
海洋科学, 1996, 期号: 5, 页码: 21-23
刘文臣; 王荣
收藏  |  浏览/下载:24/0  |  提交时间:2013/10/08