机构

• 高能物理研究所 [2]
• 长春光学精密机械与物... [1]
• 数学与系统科学研究院 [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2012 [1]
• 2009 [1]
• 2008 [1]
• 2001 [1]

学科主题

• Physics [2]

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Stability of closed timelike curves in a Galileon model 期刊论文  OAI收割 JOURNAL OF HIGH ENERGY PHYSICS, 2012, 期号: 3, 页码: 9 作者:  Evslin, J 收藏  |  浏览/下载：25/0  |  提交时间：2016/04/08 Classical Theories of Gravity  Cosmology of Theories beyond the SM  Space-time Singularities   Exact solutions for shells collapsing towards a pre-existing black hole 期刊论文  OAI收割 PHYSICS LETTERS B, 2009, 卷号: 679, 期号: 2, 页码: #REF! 作者:  Liu, Y;  Zhang SN(张双南);  Zhang, SN 收藏  |  浏览/下载：25/0  |  提交时间：2016/04/12 Black holes  Classical theories of gravity  Space-time singularities   Study on bandwidth mutual-benefit between the azimuth and pitch in an optoelectronic tracking system (EI CONFERENCE) 会议论文  OAI收割 MEMS/MOEMS Technologies and Applications III, November 12, 2007 - November 14, 2007, Beijing, China 作者:  Guo J.;  Guo J.;  Chen J. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 Two-axis optoelectronic tracking equipments generally use such mode that azimuth and pitch system are independently controlled. It leads to the two structures completely uncoupled  therefore  and reduces the state space dimension. But the main problem is that the rotational inertia of azimuth is much larger than that of pitch  it is an effective control mode to the two-axis photoelectric tracking equipments.  which leads its dynamic tracking performance is worse. So to find a more suitable mechanics and more effective control strategy is necessary. Considering the tracking ability  this paper designs BMC (bandwidth mutual compensation) to uniformly correct the error of both the azimuth and pitch system in real time  it is realized by cross coupling control to the azimuth and pitch. The simulation result verified that compared with classical uncoupling system BMS not only guarantees the state space dimension but improves systematic tracking performance about 2   On AdS/CFT correspondence of EYM fields 期刊论文  OAI收割 SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY, 2001, 卷号: 44, 期号: 4, 页码: 445-451 作者:     |  收藏  |  浏览/下载：11/0  |  提交时间：2018/07/30 EYM field  conformal space  classical space-time  conformal infinity