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	A Multispectral Denoising Framework for Seismic Random Noise Attenuation 期刊论文 OAI收割 IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2022, 卷号: 60, 页码: 17 作者: Lin, Yi; Zhang, Jinhai \| 收藏 \| 浏览/下载：55/0 \| 提交时间：2022/07/04 Tensors Noise measurement Noise reduction Transforms Attenuation Time-frequency analysis Matrix decomposition 3-D tensor low rank multispectral denoising framework (MDF) random noise attenuation seismic data processing
	Replay attack detection based on distortion by loudspeaker for voice authentication 期刊论文 OAI收割 MULTIMEDIA TOOLS AND APPLICATIONS, 2019, 卷号: 78, 期号: 7, 页码: 8383-8396 作者: Ren, Yanzhen; Fang, Zhong; Liu, Dengkai; Chen, Changwen \| 收藏 \| 浏览/下载：50/0 \| 提交时间：2019/08/16 Automatic Speaker Verification (ASV) Replay Attack Detection (RAD) Loudspeaker Low-frequency attenuation Spoofing attack
	Extracting Low-Frequency Information from Time Attenuation in Elastic Waveform Inversion 期刊论文 OAI收割 PURE AND APPLIED GEOPHYSICS, 2017, 卷号: 174, 期号: 3, 页码: 1303-1314 作者: Guo, Xuebao; Liu, Hong; Shi, Ying; Wang, Weihong \| 收藏 \| 浏览/下载：14/0 \| 提交时间：2017/11/16 Elastic Waveform Inversion Frequency Filtering Low Frequency Time Attenuation Time Domain
	Time domain full waveform inversion based on frequency attenuation 期刊论文 OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2016, 卷号: 59, 期号: 10, 页码: 3777-3787 作者: Guo Xue-Bao; Liu Hong; Shi Ying \| 收藏 \| 浏览/下载：28/0 \| 提交时间：2017/11/20 Time domain full waveform inversion Frequency attenuation Low frequency GPU
	Multi-parameters decoupling method with Lamb wave sensor for improving the selectivity of label-free liquid detection (EI CONFERENCE) 会议论文 OAI收割 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11, June 5, 2011 - June 9, 2011, Beijing, China 作者: Zhou L. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 The anti-symmetric modes (A01 mode for low frequency A 03 mode for high frequency) and symmetric modes (S0 mode) produced by Lamb wave sensor are used to detect multi-parameters of a liquid such as its density sound velocity and viscosity. These modes are found to be very different to the parameters. For example the A01 mode is very sensitive to the liquid's density but the A03 mode is sensitive to its sound velocity. The measurements of the attenuation with S0 mode can give out liquid's viscosity after its density been determined by A 01 mode. That could be a way to distinguish an unknown liquid with high sensitivity or to solve the problem of the selectivity of label free detection on biosensors. 2011 IEEE.
	Low drive-voltage and high-bandwidth electro-optic modulators based on BaTiO3 thin-film waveguides (EI CONFERENCE) 会议论文 OAI收割 Science and Technology of Dielectrics for Active and Passive Photonic Devices - 210th Electrochemical Society Meeting, October 29, 2006 - November 3, 2006, Cancun, Mexico Sun D. G.; Fu X. H.; Liu Z. F.; Ho S. T.; Wessels B. W. 收藏 \| 浏览/下载：45/0 \| 提交时间：2013/03/25 We investigated electro-optic modulator structures to target low drive voltage high-speed modulation and small device size with c-axis grown BaTiO3/MgO ferro-electric thin films. In this study the calculations are focused on the ideal thin film with a quadratic relation between the half-wave drive voltage V and the interaction length L in the electro-optic modulation case we obtained in previous work. With the quadratic electro-optic modulating relation and the optimal rib waveguide structure of BaTiO3/MgO thin films the frequency-voltage-size performances for 2.5GHz 10GHz 40GHz and 100GHz modulation bandwidths have been obtained under half-wave drive voltages of 0.8V 1.6V 3.0V and 4.8V respectively for the ideal film with r51=730 pm/V at 1550nm wavelength where both the phase velocity matching condition and the conductor induced microwave attenuation are considered. The required device lengths to achieve these four typical values of modulation bandwidth are 3.3 mm 0.8 mm 0.4 mm and 0.2 mm respectively. With the c-axis grown BaTiO3/MgO crystal thin films and the quadratic electro-optic modulating relation an electro-optic coefficient of reff=180 pm/V for the c-axis grown BaTiO3/MgO ferro-electric thin films was measured which is relatively far from the ideal value of r51=560 pm/V. copyright The Electrochemical Society.