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Health Indicator of Bearing Constructed by rms-CUMSUM and GRRMD-CUMSUM With Multifeatures of Envelope Spectrum 期刊论文
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2021, 卷号: 70
作者:  Meng, Jiadong;  Yan, Changfeng;  Chen, Guangyi;  Liu, Yaofeng;  Wu, Lixiao
收藏  |  浏览/下载:9/0  |  提交时间:2021/10/14
Timing analysis of Swift J1658.2-4242's outburst in 2018 with Insight-HXMT, NICER and AstroSat 期刊论文
Journal of High Energy Astrophysics, 2019, 卷号: 24, 页码: 30-40
作者:  HXMT
收藏  |  浏览/下载:44/0  |  提交时间:2022/02/08
Accretion  accretion disks  Black hole physics  X-rays: binaries:  Swift J1658.2-4242  Astrophysics - High Energy Astrophysical Phenomena  Abstract: We present the observational results from a detailed timing analysis of the black hole candidate Swift J1658.2-4242 during its 2018 outburst with the observations of Hard X-ray Modulation Telescope (Insight-HXMT), Neutron Star Interior Composition Explorer (NICER) and AstroSat in 0.1-250 keV. The evolution of intensity, hardness and integrated fractional root mean square (rms) observed by Insight-HXMT and NICER are presented in this paper. Type-C quasi-periodic oscillations (QPOs) observed by NICER (0.8-3.5 Hz) and Insight-HXMT (1-1.6 Hz) are also reported in this work. The features of the QPOs are analyzed with an energy range of 0.5-50 keV. The relations between QPO frequency and other characteristics such as intensity, hardness and QPO rms are carefully studied. The timing and spectral properties indicate that Swift J1658.2-4242 is a black hole binary system. Besides, the rms spectra of the source calculated from the simultaneous observation of Insight-HXMT, NICER and AstroSat support the Lense-Thirring origin of the QPOs. The relation between QPO phase lag and the centroid frequency of Swift J1658.2-4242 reveals a near zero constant when < 4Hz and a soft phase lag at 6.68 Hz. This independence follows the same trend as the high inclination galactic black hole binaries such as MAXI J1659-152.  
Difference between the surface electromyogram signals recorded from the right hand and left hand 期刊论文
Proceedings - 2017 Chinese Automation Congress, CAC 2017, 2017, 卷号: 2017-January, 页码: 4906-4909
作者:  Zeng, Haibin;  Li, Ke;  Tian, Xincheng;  Wei, Na;  Song, Rui
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/12
Difference Between the Surface Electromyogram Signals Recorded From the Right Hand and Left Hand 会议论文
Chinese Automation Congress (CAC), OCT 20-22, 2017
作者:  Zeng, Haibin;  Li, Ke;  Tian, Xincheng;  Wei, Na;  Song, Rui
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/31
Experimental Research and Analysis on Rotor Winding Inter-turn Short Circuit Fault in DFIG 会议论文
作者:  Ur Rehman, Attiq;  Chen, Yu;  Wang, Lulu;  Zhao, Yihan;  Yin, Yonghong
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/02
In-situ stress suppression of hydrogenated a-CNxfilm prepared via Ar gas introduction 期刊论文
Surface and Interface Analysis, 2016
作者:  Wang, Qi;  He, Deyan;  Zhang, Junyan
收藏  |  浏览/下载:3/0  |  提交时间:2017/01/13
Micro water dissolution machining principle and its application in ultra-precision processing of KDP optical crystal 期刊论文
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2015, 卷号: 58, 页码: 1877-1883
作者:  Gao Hang;  Wang Xu;  Teng XiaoJi;  Guo DongMing
收藏  |  浏览/下载:7/0  |  提交时间:2019/12/09
Roughness analysis of optical surfaces by X-ray scattering (EI CONFERENCE) 会议论文
2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China
Meng Y.; Chen B.; Chen C.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
A grazing incidence x-ray scattering (XRS) method  Order perturbation theory (FOPT)  is stated briefly and an experimental facility based on an improved X-ray diffraction has been introduced  which can work with high performance. The x-ray scattering distributions of two super smooth silicon samples measured at the incidence angle 0.2 degree  as the x-ray wavelength is 0.154 nm  have been given and analyzed by the FOPT to give information about the surface profiles. As a comparison  the root mean square (RMS) surface roughness  grey-scale maps and one-dimensional power spectral density (1D PSD) have been derived from the atomic-force microscope (AFM) data. The results evaluated by FOPT are in good agreement with that of AFM  which indicates that x-ray scattering method is a practical characterization for the investigation of super smooth surfaces. 2011 IEEE.  
Effect of a reducing pressure drop stick in the flow field of a cyclone separator 期刊论文
2010, 2010
Liu Chengwen; Wang Lianze; Wang Jianjun; Liu Qiusheng
收藏  |  浏览/下载:2/0
Growth and characterization of algan/gan heterostructure using unintentionally doped aln/gan superlattices as barrier layer 期刊论文
Superlattices and microstructures, 2009, 卷号: 45, 期号: 2, 页码: 54-59
作者:  Zhang, M. L.;  Wang, X. L.;  Xiao, H. L.;  Wang, C. M.;  Yang, C. B.
收藏  |  浏览/下载:30/0  |  提交时间:2019/05/12


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