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浏览/检索结果: 共9条,第1-9条 帮助

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AFM-Based observation and robotic nano-manipulation 专著  OAI收割
Singapore:Science Press and Springer Nature Singapore Pte Ltd, 2020
作者:  
Yuan S(袁帅);  Liu LQ(刘连庆);  Wang ZD(王志东)
  |  收藏  |  浏览/下载:21/0  |  提交时间:2021/03/14
AFM nanomanipulation with tip morphology estimation and positioning compensation 会议论文  OAI收割
Bangkok, Thailand, April 1-14, 2019
作者:  
Hou J(侯静);  Wu CD(吴成东);  Wang ZD(王志东);  Yuan S(袁帅);  Yu P(于鹏)
  |  收藏  |  浏览/下载:33/0  |  提交时间:2020/01/04
Bayesian Morphological Clock Methods Resurrect Placoderm Monophyly and Reveal Rapid Early Evolution in Jawed Vertebrates 期刊论文  OAI收割
SYSTEMATIC BIOLOGY, 2017, 卷号: 66, 期号: 4, 页码: 499-516
作者:  
King, Benedict;  Qiao, Tuo;  Lee, Michael S. Y.;  Zhu, Min;  Long, John A.
  |  收藏  |  浏览/下载:32/0  |  提交时间:2017/08/01
Fracture morphology pattern transition dominated by the crack tip curvature radius in brittle metallic glasses 期刊论文  OAI收割
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 卷号: 617, 页码: 89
Gao, M; Ding, DW; Zhao, DQ; Bai, HY; Wang, WH
收藏  |  浏览/下载:44/0  |  提交时间:2015/04/14
Tip-splitting instability and transition to seaweed growth during alloy solidification in anisotropically preferred growth direction 期刊论文  OAI收割
Acta Materialia, 2014, 卷号: 66, 页码: 219-231
Y. Chen; B. Billia; D. Z. Li; H. Nguyen-Thi; N. M. Xiao; A. A. Bogno
收藏  |  浏览/下载:21/0  |  提交时间:2014/04/18
Growth of ZnO films under different oxygen partial pressures by metal organic chemical vapour deposition (EI CONFERENCE) 会议论文  OAI收割
2009 International Symposium on Liquid Crystal Science and Technology, August 2, 2009 - August 5, 2009, Kunming, China
作者:  
Gao X.;  Zhao J.;  Tang W.;  Wang C.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
Accurate Estimation of Tip Shape for Reconstructing AFM Image 会议论文  OAI收割
Traverse City, MI, June 2-5, 2009
作者:  
Yuan S(袁帅);  Liu LQ(刘连庆);  Miao L(缪磊);  Dong ZL(董再励);  Wang YC(王越超)
  |  收藏  |  浏览/下载:23/0  |  提交时间:2012/06/06
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.  
The dislocation structure evolution of deformation band and crack formation in a copper bicrystal with a perpendicular grain boundary 期刊论文  OAI收割
Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2004, 卷号: 372, 期号: 1-2, 页码: 221-228
Y. Li; S. X. Li; G. Y. Li
收藏  |  浏览/下载:22/0  |  提交时间:2012/04/14