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浏览/检索结果: 共10条，第1-10条 帮助 限定条件 发表日期：2005     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序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 Fabrication and electron emission of carbon microtubes (EI CONFERENCE) 会议论文 Technical Digest of the 18th International Vacuum Nanoelectronics Conference, IVNC 2005, July 10, 2005 - July 14, 2005, Oxford, United kingdom Wang W.; Xia Y.; Lei D.; Chen S.; Liu L.; Chen M.; Liang J. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 Carbon nanotubes have been attracting attention because of their unique physical properties and their application potential for field emission cathode. Carbon nanotubes possess the following properties favorable for field emission material  such as a high aspect ratio and sharp tip  high chemical stability  high mechanical strength  stable at high temperature. Some research works on carbon nanotubes field emitter and field emission display have been reported. Here  a kind of carbon microtubes and its field emission properties are introduced. They have some different properties with carbon nanotubes  and the density is lower than carbon nanotubes bundles. These carbon microtubes are directly synthesized by liquidoid epitaxy method on silicon substrates at low temperature. The field emission properties of carbon microtubes are reported too. Carbon microtubes film is synthesized in liquid by electrolysis. The graphite plate is as anode  and n-silicon substrate with resistivity of 4-8 cm is as cathode. The electrolysis current is about 5-8mA/cm2  and applied voltage is 800-1500V. Temperatures of the methanol base solution is maintained at 60C in process of deposition of carbon microtubes. Carbon microtubes film is observed by scanning electron microscopy(SEM)  as shown in fig.1(a  b). The wall's thickness of carbon microtube is about 60nm. The diameter of carbon microtube is about 0.8 m. Raman spectrum of carbon microtubes film shows the two peaks at 1342and 1560cm-1. The field emission properties of carbon microtubes are measured in high vacuum chamber(10-5Pa). The emission area of carbon microtubes is 0.5cm 0.5cm. The threshold of field emission of the carbon microtubes film is about 3.6V/ m. Field emission property of carbon microtubes film is shown in fig.2. Another  when the electric field between anode and cathode is 10V/ m  the electric field distribution on single carbon microtube is also given after calculation according to electric field theory. Fig 3 shows that electric field distribution vertical section on the of single carbon microtube top with 2 m of highness. These results may help us to understand field emission properties of carbon microtubes. According to research results  it is found that liquidoid synthesis is simple method to produce carbon microtubes cold cathode material  and the carbon microtubes have better field emission properties. 2005 IEEE.   Cr2O3掺杂Pb(Mn1/3Sb2/3)0.05Zr0.47Ti0.48O3压电陶瓷的性质 期刊论文 硅酸盐学报, 2005, 卷号: 第33卷, 页码: P1060-1064 作者:  Alhabib BINKOU1;  YU Yixin1;  SUN Gang2;  哈比比3;  余贻鑫3 收藏  |  浏览/下载：3/0  |  提交时间：2019/11/26 optimal power flow/static security region/static voltage stability region/practical dynamic security region/quadratic programming/cost function   Analysis and estimate of the influence of the leakage inductance of the charging transformer primary on the amplitude stability of the PFN charging voltage 期刊论文 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005, 卷号: 547, 期号: 40577, 页码: 313 Fu, LX（傅禄欣） 收藏  |  浏览/下载：15/0  |  提交时间：2012/05/03 line-type modulator  DeQing regulation  leakage inductance  PFN charging voltage  amplitude stability   A bilevel programming model for the reactive power optimization 会议论文 作者:  Wang, Guang-Min;  Wang, Shu-Fen;  Fan, Heng;  Wan, Zhong-Ping 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/05 reactive power optimization  voltage stability  bilevel programming model  genetic algorithm  simulated annealing algorithm   Fuzzy logic controlled particle swarm for reactive power optimization considering voltage stability 会议论文 7th International Power Engineering Conference, IPEC2005, 29 November 2005 through 2 December 2005 作者:  Zhang, W.;  Liu, Y. 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/31 Evolutionary computation  Fuzzy system  Particle swarm optimization  Reactive power optimization  Voltage stability   Voltage stability affected by on-load tap changer considering excitation reactance of induction motor 会议论文 Canadian Conference on Electrical and Computer Engineering 2005, 1 May 2005 through 4 May 2005 作者:  Liang, Wang;  Yutian, Liu;  Zhaowen, Luan 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/31 Excitation reactance  On-load tap changer  Voltage stability   Power transmission paths based voltage stability assessment 会议论文 2005 IEEE/PES Transmission and DistributionConference and Exhibition - Asia and Pacific, 15 August 2005 through 18 August 2005 作者:  Wang, Liang;  Liu, Yutian;  Luan, Zhaowen 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/31 Power transmission paths  Reactive power  Voltage stability assessment   Fuzzy logic controlled particle swarm for reactive power optimization considering voltage stability 会议论文 International Power Engineering Conference (IPEC), NOV 29-DEC 02, 2005 作者:  Zhang, W.;  Liu, Y. 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/31 evolutionary computation  fuzzy system  particle swarm optimization  reactive power optimization  voltage stability   The small-disturbance voltage stability analysis through adaptive AR model based on PMU 会议论文 2005 IEEE/PES Transmission and DistributionConference and Exhibition - Asia and Pacific, 15 August 2005 through 18 August 2005 作者:  Xu, Chao;  Liang, Jun;  Yun, Zhihao;  Zhang, Li 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/31 Adaptive AR model  Phasor Measuring Unit  Small-disturbance Voltage Stability   The small-disturbance voltage stability analysis through adaptive AR model based on PMU 会议论文 2005 IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific, 15 August 2005 through 18 August 2005 作者:  Xu, Chao;  Liang, Jun;  Yun, Zhihao;  Zhang, Li 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/31 Adaptive AR model  Phasor Measuring Unit  Small-disturbance Voltage Stability