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A two-stage restoration of distorted underwater images using compressive sensing and image registration

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Advances in Manufacturing 2021年第2期9卷 273-285页

作者： Zhen Zhang Yu-Gui Tang kuo yang School of Mechatronic Engineering and Automation Shanghai UniversityShanghai 200444People’s Republic of China

Imaging through a time-varying water surface exhibits severe non-rigid geometric distortions and motion ***,although the water surface possesses smoothness and temporal periodicity,random fluctuations are inevitable in an actual video ***,considering the distribution of information,the image structure contributes more to the *** this paper,a new two-stage restoration method for distorted underwater video sequences is *** the first stage,salient feature points,which are selected through multiple methods,are tracked across the frames,and the motion fields at all pixels are estimated using a compressive sensing solver to remove the periodic *** the second stage,the combination of a guided filter algorithm and an image registration method is applied to remove the structural-information-oriented residual ***,the experiment results show that the method outperforms other state-of-the-art approaches in terms of the recovery effect and time.

关键词： Periodic wave Random wave Compressive sensing(CS) Image registration(IR) Structural information

Theoretical Calculation of Energy Spectrum of YGG:Cr^(3+)and Thermal Shifts of Its R-Lines

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Communications in Theoretical Physics 2009年第5期51卷 914-918页

作者： yang kuo ZHANG Ji-Ping College of Physical Science and Technology Sichuan University Chengdu 610065 China Physical Department of A＇ba Teachers College Wenchuan 623000 China

With the strong-field scheme and trigonal bases, the complete d3 energy matrix in a trigonally distorted cubic-field has been constructed. By diagonalizing this matrix, the energy spectrum of YGG：Cr^3＋ at normal pressure and low temperature has been calculated. The g factor of the ground-state has been evaluated in terms of the energy spectrum. At the same time, by using the wavefunctions obtained from diagonalizing the complete d^3 energy matrix and Thermal Shifts theory, we calculate the thermal shifts of the sharp lines of YGG：Cr^3＋ and determine the relevant parameters. The calculated results are all in good agreement with the optical-spectrum and EPR experimental data. It is demonstrated that the obtained wavefunctions and the values of parameters are reasonable.

关键词： optical propenty electron-phonon interaction electronic structure thermal shift g factor

Properties of the Measurement Phase Operator in Dual-Mode Entangle Coherent States

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Chinese Physics Letters 2011年第6期28卷 122-125页

作者： HOU Shen-Yong yang kuo Department of Mathematics Yangtse River Normal UniversityChongqing 408003 Department of Physics A'ba Teachers CollegeChengdu 611741

A class of measurement phase operators of dual-mode is defined and their properties in a class of entangle coherent states are *** results indicate that the entangle coherent states display some non-classical squeezed... 详细信息

关键词： angle coherent operators

Effect of Banxiaxiexin Tang on treatment of functional dyspepsia: a Meta-analysis of randomized controlled trials

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Journal of Traditional Chinese Medicine 2014年第2期34卷 140-144页

作者： Yongkang Gan Huayi Liu Liu yang kuo yang School of Traditional Chinese Medicine Tianjin University of Traditional Chinese Medicine Department of Spleen and Stomach Tianjin Academy of Traditional Chinese Medicine Affiliated Hospitial

OBJECTIVE: To evaluate the efficacy of Banxiaxiexin Tang compared with Western Medicine in the treatment of functional dyspepsia(FD) through ***: Literature was searched in the following databases: MEDLINE, Excerpta Medica Database, Chinese Medical Current Contents, China Science and Technology Database, Chinese Biomedical Literature Database, and China National Knowledge Infrastructure. Randomized controlled trials evaluating the efficacy of Banxiaxiexin Tang for the treatment of FD were selected according to certain standards including clear general situation of patients, specific diagnostic criteria, definite clinical outcomes, etc. Articles were evaluated with quality assessment standards in the Cochrane Handbook for Systematic Reviews of Interventions. Meta-analysis was conducted with RevMan 5.0.23 ***: Ten articles with a total of 972 patients were included. The comparison of efficacy between Banxiaxiexin Tang and Western Medicine showed a combined effect size [OR=2.75, 95% CI(1.86-4.07)]andcombinedeffectofvalueofZ=5.07(P<0.000 01),suggesting a significant difference between the ***: Banxiaxiexin Tang was more effective thanWestern Medicine in treating FD.

关键词： Dyspepsia Randomized controlled trials Meta-analysis Banxiaxiexin Tang

Numerical Study of Interaction Efficiency for a 170GHz Megawatt-Level Coaxial-Gyrotron

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Chinese Journal of Electronics 2016年第5期25卷 980-985页

作者： QIN Mimi yang kuo LUO Wenguang LUO Yong HUANG Yong School of Electrical and Information Engineering Guangxi University of Science and Technology School of Physical Electronic University of Electronics Science and Technology of China Institute of Applied physics A’ba Teachers College

The beam-wave interaction efficiency of a 170GHz megawatt-level corrugated coaxial-gyrotron operating with TE;mode was studied numerically. According to the self-consistent nonlinear theory, the efficiencies of two types of coaxial resonator were calculated and compared. Taking into account electronic velocity spread and cavity wall resistivity, the beam-wave interactions of improved cavity were investigated. The relationships between efficiency and magnetic field, voltage, current, beam radius, velocity ratio, and parameters of groove are presented. The results show that the voltage and magnetic field have great influence on efficiency, but the current and velocity spread do slightly. The optimized geometry parameters can improve efficiency, reduce the impact of velocity spread on efficiency, and achieve around 48.6% electronic efficiency and 1.7MW output power at 5% velocity spread and 6.896×10;Ωm resistivity.

关键词： Coaxial–gyrotron Corrugated Efficiency Interaction Simulation

Enhancing the Tribological Performance of Conductive Grease Through the Modification of Polypyrrole with Ionic Liquids

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China Petroleum Processing & Petrochemical Technology 2024年第3期26卷 158-172页

作者： Xia Yanqiu Chen Wenhao Jiang Zhirong yang kuo School of Energy Power and Mechanical Engineering North China Electric Power UniversityBeijing 102206China

This study prepared four types of ionic liquid-modified polypyrrole(IL-modified PPy)as conductive additives and investigated their tribological performance and conductivity in polytetrafluoroethylene lubricating *** results indicated that IL-modified PPy effectively enhanced the anti-wear performance and conductivity of the base *** the additives,1-octyl-3-methylimidazolium tetrafluoroborate([OMIm][BF4])modified PPy showed superior performance compared to the other three additives,with the best effect observed at a mass fraction of 0.5%.X-ray photoelectron spectroscopy analysis revealed that IL-modified PPy forms a stable friction chemical film during the friction process,effectively enhancing the lubrication performance and conductivity of the base *** indicates broad potential applications in the field of conductive lubrication.

关键词： conductive lubricating grease ILs modified PPy anti-friction and anti-wear additive

2D profiling of tumor chemotactic and molecular phenotype at single cell resolution using a SERS-microfluidic chip

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Nano Research 2022年第5期15卷 4357-4365页

作者： Yizhi Zhang Lei Wu kuo yang Shenfei Zong Zhuyuan Wang Yiping Cui Advanced Photonics Center School of Electronic Science and EngineeringSoutheast UniversityNanjing 210096China Department of Biomedical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 211106China

Emerging single-cell technologies create new opportunities for unraveling tumor ***,the development of high-content phenotyping platform is still at its ***,we develop a microfluidic chip for two-dimensional(2D)profiling of tumor chemotactic and molecular features at single cell *** cells were captured by the triangular micropillar arrays in the cell-loading channel,facilitating downstream single-cell *** 2D phenotyping,the chemotactic properties of tumor cells were visualized through cellular migratory behavior in microchannels,while their protein expression was profiled with multiplex surface enhanced Raman scattering(SERS)nanovectors,in which Raman reporter-embedded gold@silver core-shell nanoparticles(Au@Ag REPs)were modified with DNA aptamers targeting cellular surface *** a proof of concept,breast cancer cells with diverse phenotypes were tested on the chip,demonstrating the capability of this platform for simultaneous chemotactic and molecular *** chip is expected to provide a powerful tool for investigating tumor heterogeneity and promoting clinical precision medicine.

关键词： gold@silver nanoparticles surface enhanced Raman spectroscopy microfluidic chip single cell analysis two-dimensional(2D)phenotype profiling

Link Prediction based on Tensor Decomposition for the Knowledge Graph of COVID-19 Antiviral Drug

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Data Intelligence 2022年第1期4卷 134-148页

作者： Ting Jia Yuxia yang Xi Lu Qiang Zhu kuo yang Xuezhong Zhou Institute of Medical Intelligence School of Computer and Information TechnologyBeijing Jiaotong UniversityBeijing 100044China BNRIST/Department of Automation Tsinghua UniversityBeijing 100084China

Due to the large-scale spread of COVID-19,which has a significant impact on human health and social economy,developing effective antiviral drugs for COVID-19 is vital to saving human *** biomedical associations,e.g.,drug-virus and viral protein-host protein interactions,can be used for building biomedical knowledge *** on these sources,large-scale knowledge reasoning algorithms can be used to predict new links between antiviral drugs and *** utilize the various heterogeneous biomedical associations,we proposed a fusion strategy to integrate the results of two tensor decomposition-based models(i.e.,CP-N3 and Compl Ex-N3).Sufficient experiments indicated that our method obtained high performance(MRR=0.2328).Compared with CP-N3,the mean reciprocal rank(MRR)is increased by 3.3%and compared with Compl Ex-N3,the MRR is increased by 3.5%.Meanwhile,we explored the relationship between the performance and relationship types,which indicated that there is a negative correlation(PCC=0.446,P-value=2.26 e-194)between the performance of triples predicted by our method and edge betweenness.

关键词： Link prediction Knowledge graph COVID-19 Antiviral drug prediction Tensor decomposition

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An Event Analysis of Bitcoin Based on a Novel DRE Methods

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Journal of Systems Science and Information 2023年第2期11卷 139-159页

作者： Yao YUE Yuying SUN kuo yang Shouyang WANG School of Economics and Management University of Chinese Academy of SciencesBeijing 100190China Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190ChinaCenter for Forecasting ScienceChinese Academy of SciencesBeijing 100190China Minsheng Financial Leasing Co. Ltd.Shanghai 210000China School of Economics and Management University of Chinese Academy of SciencesBeijing 100190ChinaAcademy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190ChinaCenter for Forecasting ScienceChinese Academy of SciencesBeijing 100190China

Since Bitcoin came into the world,modelling and analyzing the underlying characteristics of Bitcoin has attracted increasing *** paper uses a framework including decomposition,reconstruction and extraction method(DRE)to analyze price fluctuations based on ultra-high-frequency data from Dec.1,2019,to Nov.30,***,the ensemble mode decomposition(EMD)is employed to decompose the Bitcoin hourly spot price into 13 intrinsic mode functions(IMF)plus a ***,the IMFs are reconstructed into high-frequency components,low-frequency components and a trend based on fine-to-coarse ***,the intraday volatility analysis based on LM test is applied on 15-minutes frequency data to detect discontinuous jump arrivals and extract jump from realized quadratic *** results show that three components of reconstruction can be identified as short term fluctuations process caused by microstructure noise,the shocks affected by major events,and a long-term trend based on inelastic supply and rigid *** find that approximately 40%of jumps can be matched with the news from the public news database(Factiva),and the jump sizes are larger than that of stock *** finding indicates that the Bitcoin market has more irregularly noise and unforeseen shocks from unscheduled events.

关键词： Bitcoin EMD jump realized variation