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浏览/检索结果: 共27条，第1-10条 帮助

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Liquid-level response measurement using high-speed videogrammetry with robust multiple sphere tracking 期刊论文  OAI收割
MEASUREMENT, 2024, 卷号: 228, 页码: 18
作者:  Tong, Xiaohua;  Shi, Haibo;  Ye, Zhen;  Chen, Peng;  Liu, Ziqi
  |  收藏  |  浏览/下载：21/0  |  提交时间：2024/05/14
Synchronous X-ray/Optical QPOs from the Black Hole LMXB MAXI J1820+070 期刊论文  OAI收割
Monthly Notices of the Royal Astronomical Society, 2021
作者:  HXMT
  |  收藏  |  浏览/下载：52/0  |  提交时间：2022/02/08
black hole physics  Low Mass X-ray Binaries  accretion  accretion  discs  stars: individual (MAXI J1820+070)  Astrophysics - High Energy  Astrophysical Phenomena  Abstract: We present high-speed optical photometry from SAAO and SALT on the black hole LMXB MAXI J1820+070 (ASSASN-18ey), some of it simultaneous with NICER, Swift and Insight-HXMT X-ray coverage. We detect optical Quasi-Periodic Oscillations (QPOs) that move to higher frequencies as the outburst progresses, tracking both the frequency and evolution of similar X-ray QPOs previously reported. Correlated X-ray/optical data reveal a complex pattern of lags, including an anti-correlation and a sub-second lag that evolve over the first few weeks of outburst. They also show correlated components separated by a lag equal to the QPO period roughly centered on zero lag, implying that the inter-band variability is strongly and consistently affected by these QPOs at a constant phase lag of roughly ±Ю The synchronisation of X-ray and optical QPOs indicates that they must be produced in regions physically very close to each other  we thus propose that they can be explained by a precessing jet model, based on analogies with V404 Cyg and MAXI J1348-630.  
Cyclical helping hands: seasonal tailwinds differentially affect migrating Oriental Storks (Ciconia boyciana) travel speed 期刊论文  OAI收割
AVIAN RESEARCH, 2020, 卷号: 11, 期号: 1, 页码: 1-8
作者:  Fan, Shujuan;  Zhao, Qingshan;  Li, Hongbin;  Zhu, Baoguang;  Dong, Shubin
  |  收藏  |  浏览/下载：30/0  |  提交时间：2021/08/31
Fractional Order Based Modeling and Identification of Coupled Creep and Hysteresis Effects in Piezoelectric Actuators 期刊论文  OAI收割
IEEE-ASME TRANSACTIONS ON MECHATRONICS, 2020, 卷号: 25, 期号: 2, 页码: 1036-1044
作者:  Liu, Lei;  Yun, Hai;  Li, Qing;  Ma, Xiaofei;  Chen, Si-Lu
  |  收藏  |  浏览/下载：23/0  |  提交时间：2020/12/16
Extended kalman predictive filter and its application in theodolite system 会议论文  OAI收割
Beijing, China, 2019-07-12
作者:  Changming, Lu;  Xin, Gao;  Zhiguo, Li;  Meilin, Xie;  Yu, Cao
  |  收藏  |  浏览/下载：58/0  |  提交时间：2019/09/20
Sliding Mode Observer-Based Parameter Identification and Disturbance Compensation for Optimizing the Mode Predictive Control of PMSM 期刊论文  OAI收割
Energies, 2019, 卷号: 12, 期号: 10, 页码: 22
作者:  M.Shao;  Y.T.Deng;  H.W.Li;  J.Liu;  Q.Fei
  |  收藏  |  浏览/下载：24/0  |  提交时间：2020/08/24
The Key Technology of Large Telescope Tracking System Based on Integrated Super-low Speed Bearingless Motor 会议论文  OAI收割
SPIE Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III（Vol. 10706）, Austin, Texas, United States, 2018-6-10
作者:  Changzhi Ren;  XiajieZhang;  JinXu;  XiaoliSong;  ZhongyuYue
  |  收藏  |  浏览/下载：51/0  |  提交时间：2019/02/12
Motion-Blur-Free High-Speed Video Shooting Using a Resonant Mirror 期刊论文  OAI收割
SENSORS, 2017, 卷号: 17, 期号: 11
作者:  Inoue, Michiaki;  Gu, Qingyi;  Jiang, Mingjun;  Takaki, Takeshi;  Ishii, Idaku
  |  收藏  |  浏览/下载：48/0  |  提交时间：2018/10/10
Learning A Superpixel-Driven Speed Function for Level Set Tracking 期刊论文  OAI收割
IEEE TRANSACTIONS ON CYBERNETICS, 2016, 卷号: 46, 期号: 7, 页码: 1498-1510
作者:  Zhou, Xue;  Li, Xi;  Hu, Weiming
  |  收藏  |  浏览/下载：25/0  |  提交时间：2016/10/20
微创血管介入手术机器人系统的设计与控制 会议论文  OAI收割
中国控制会议, 西安，中国, 2013.07
作者:  奉振球;  侯增广
收藏  |  浏览/下载：21/0  |  提交时间：2016/06/23