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	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.
	Cross-Calibration of GF-1 PMS Sensor with Landsat 8 OLI and Terra MODIS 期刊论文 OAI收割 IEEE Transactions on Geoscience and Remote Sensing, 2016, 卷号: 54, 期号: 8, 页码: 4847-4854 作者: Gao, Hailiang; Gu, Xingfa; Yu, Tao; Sun, Yuan; Liu, Qiyue 收藏 \| 浏览/下载：39/0 \| 提交时间：2017/04/24 MICROWAVE-FREQUENCIES DIELECTRIC-PROPERTIES COMPLEX PERMITTIVITY VEGETATION
	Optimal configuration for vibration frequencies in a ring of harmonic oscillators: The nonidentical mass effect 期刊论文 OAI收割 FRONTIERS OF PHYSICS, 2015, 卷号: 10, 期号: 3, 页码: 327-338 作者: Liu, Shuai; Zhang, Guo-Yong; He, Zhiwei; Zhan, Meng 收藏 \| 浏览/下载：27/0 \| 提交时间：2015/07/20 synchronization vibration frequencies normal modes complex systems
	Studies on complex frequencies in frequency domain full waveform inversion 期刊论文 OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2014, 卷号: 57, 期号: 7, 页码: 2302-2313 作者: Cao Shu-Hong; Chen Jing-Bo \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2018/09/26 Complex frequencies Frequency domain full waveform inversion Initial model
	Circular Layered Waveguide Use for Wideband Complex Permittivity Measurement of Lossy Liquids 期刊论文 OAI收割 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2014, 卷号: 63, 期号: 3, 页码: 694 Skresanov, VN; Eremenko, ZE; Kuznetsova, ES; Wu, Y; He, YS 收藏 \| 浏览/下载：33/0 \| 提交时间：2015/04/14 Absorbing liquid attenuation and phase coefficients circular metal waveguide complex permittivity (CP) electromagnetic characteristics microwave frequencies waveguide
	Color videos' multichannel combination for bandwidth reduction and fast frequency domain processing (EI CONFERENCE) 会议论文 OAI收割 2nd International Workshop on Education Technology and Computer Science, ETCS 2010, March 6, 2010 - March 7, 2010, Wuhan, Hubei, China 作者: Li S. 收藏 \| 浏览/下载：18/0 \| 提交时间：2013/03/25 The real color video consumes much transfer bandwidth and the resource of the hardware. A new approach is introduced to process the real color video images in real-time using color components combination to fit to the limited transmission bandwidth. The Y U V planes of video images are packed to construct a 2 dimensional complex array. Through the decomposition of frequency domain the Y U V frequency can be got respectively by performing Fourier transform a time on the specific complex array. These frequencies can be filtered to generate the final filtered images. The experiment results show that the proposed algorithm is 3X speed compared to the traditional algorithm and it reduces 1/3 bandwidth of video data stream. 2010 IEEE.
	Synthesis and optical properties of two novel chlorobismuthate(III) complexes: 8-Hydroxyquinolinium (4)K-2 BiCl6 (2)center dot 6H(2)O (1) and 8-hydroxyquinolinium (6) Bi2Cl10 BiCl5(H2O) center dot 6H(2)O (2) 期刊论文 OAI收割 Journal of Molecular Structure, 2008, 卷号: 875, 期号: 1-3, 页码: 570-576 Y. J. Wang and L. Xu 收藏 \| 浏览/下载：15/0 \| 提交时间：2013/01/22 chlorobismuthate(III) complex 4 crystal structure 4'-bipyridinium photoluminescence x-ray-diffraction crystal-structures stretching frequencies vibrational-spectra phase-transitions chloroantimonates(iii) pentachloroantimonate 8-hydroxyquinoline (c10h8n2h2)sbcl5