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Statistic PID Tracking Control for Non-Gaussian Stochastic Systems Based on T-S Fuzzy Model

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International Journal of Automation and computing 2009年第1期6卷 81-87页

作者： Yang Yi hong Shen Lei gu School of Automation Southeast University Nanjing 210096 PRC School of Economics and Management Southeast University Nanjing 210096 PRC School of Instrumentation and Opto-Eiectronics Engineering Beihang University Beijing 100083 PRC

A new robust proportional-integral-derivative （PID） tracking control framework is considered for stochastic systems with non-Gaussian variable based on B-spline neural network approximation and T-S fuzzy model identification. The tracked object is the statistical information of a given target probability density function （PDF）, rather than a deterministic signal. Following B-spline approximation to the integrated performance function, the concerned problem is transferred into the tracking of given weights. Different from the previous related works, the time delay T-S fuzzy models with the exogenous disturbances are applied to identify the nonlinear weighting dynamics. Meanwhile, the generalized PID controller structure and the improved convex linear matrix inequalities （LMI） algorithms are proposed to fulfil the tracking problem. Furthermore, in order to enhance the robust performance, the peak-to-peak measure index is applied to optimize the tracking performance. Simulations are given to demonstrate the efficiency of the proposed approach.

关键词： Non-Gaussian systems probability density function statistic tracking control T-S fuzzy model proportional-integralderivative control.

The utility of two-dimensional shear wave elastography and texture analysis for monitoring liver fibrosis in rat model

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Hepatobiliary & Pancreatic Diseases International 2021年第1期20卷 46-52页

作者： Li-hong gu guang-Xiang gu Ping Wan Feng-Hua Li Qiang Xia Department of Liver Surgery Renji HospitalSchool of MedicineShanghai Jiaotong UniversityShanghai 200127China Department of Ultrasound Renji HospitalSchool of MedicineShanghai Jiaotong UniversityShanghai 200127China

Background:Liver fibrosis is a common pathological change caused by a variety of *** diagnosis and timely treatment can reverse or delay disease progression and improve the *** study aimed to assess the potential utility of two-dimensional shear wave elastography and texture analysis in dynamic monitoring of the progression of liver fibrosis in rat ***:Twenty rats were divided into control group(n=4)and experimental groups(n=4 per group)with carbon tetrachloride administration for 2,3,4,and 6 *** liver stiffness measurement was performed by two-dimensional shear wave elastography,while the optimal texture analysis subsets to distinguish fibrosis stage were generated by *** results of elastography and texture analysis were validated through comparing with ***:Liver stiffness measurement was 6.09±0.31 kPa in the control group and 7.10±0.41 kPa,7.80±0.93 kPa,8.64±0.93 kPa,9.91±1.13 kPa in the carbon tetrachloride induced groups for 2,3,4,6 weeks,respectively(P<0.05).By texture analysis,histogram and co-occurrence matrix had the most frequency texture parameters in staging liver *** operating characteristic curve of liver elasticity showed that the sensitivity and specificity were 95.0%and 92.5%to discriminate liver fibrosis and non-fibrosis,*** texture analysis,five optimal parameters were selected to classify liver fibrosis and ***:Two-dimensional shear wave elastography showed potential applications for noninvasive monitoring of the progression of hepatic fibrosis,even in mild *** analysis can further extract and quantify the texture features in ultrasonic image,which was a supplementary to further visual information and acquired high diagnostic accuracy for severe fibrosis.

关键词： Shear wave elastography Ultrasound Texture analysis Fibrosis Rat

Verification of a self-developed CFD-based multi-physics coupled code MPC-LBE for LBE-cooled reactor

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Nuclear Science and Techniques 2021年第5期32卷 84-100页

作者： Zhi-Xing gu Qing-Xian Zhang Yi gu Liang-Quan Ge guo-Qiang Zeng Mu-Hao Zhang bao-Jie Nie College of Nuclear Technology and Automation Engineering Chengdu University of TechnologyChengdu 610059China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China

To perform an integral simulation of a pool-type reactor using CFD code,a multi-physics coupled code MPC-LBE for an LBE-cooled reactor was proposed by integrating a point kinetics model and a fuel pin heat transfer model into self-developed CFD *** code verification,a code-to-code comparison was employed to validate the CFD ***,a typical BT transient benchmark on the LBE-cooled XADS reactor was selected for verification in terms of the integral or system *** on the verification results,it was demonstrated that the MPC-LBE coupled code can perform thermal-hydraulics or safety analyses for analysis for processes involved in LBE-cooled pool-type reactors.

关键词： LBE-cooled pool-type reactor Computational fluid dynamics Multi-physics coupling code Safety analysis code Verification

Involvement of long non-coding RNAs in pear fruit senescence under high-and low-temperature conditions

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Horticultural Plant Journal 2023年第2期9卷 224-236页

作者： Yuhang Zhou Xueping Wang Kaijie Qi Jianping bao Shaoling Zhang Chao gu Centre of Pear Engineering Technology Research State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjing210095China College of Plant Science Tarim UniversityAlaer843300XinjiangChina

Pear fruit senescence under high-and low-temperature conditions has been reported to be mediated by *** non-coding RNAs(lncRNAs),which can function as competing endogenous RNAs that interact with microRNAs,may also be involved in temperature-affected fruit *** on the transcriptome and microRNA sequencings,in this study,3330 lncRNAs were isolated from Pyrus pyrifolia *** these lncRNAs,2060 and 537 were responsive to high-and low-temperature conditions,*** these differentially expressed lncRNAs,82 and 24 correlated to the mRNAs involved in fruit senescence under high-and low-temperature conditions,***,three lncRNAs were predicted to be competing endogenous RNAs(ceRNAs)that interact with the microRNAs involved in fruit senescence,while one and two ceRNAs were involved in fruit senescence under high-and low-temperature conditions,respectively.A dual-luciferase assay showed that the interaction of an lncRNA with a microRNA disrupts the action of the microRNA on the expression of its target mRNA(s).Furthermore,four alternative splicing-derived lncRNAs interacted with miR172i homologies(Novel_88 and Novel_69)to relieve the repressed expression of their target and produce an miR172i *** analysis of microRNA expression suggested that Novel_69 is likely involved in the cleavage of the pre-miR172i hairpin to generate mature *** together,lncRNAs are involved in pear fruit senescence under high-or low-temperature conditions through ceRNAs and the production of microRNA.

关键词： Pyrus pyrifolia Long non-coding RNA(lncRNA) Fruit senescence High-temperature Low-temperature lncRNA-microRNA-mRNA interaction

A Combinational Power Analysis Method against Cryptographic Hardware

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China Communications 2015年第1期12卷 99-107页

作者： guO Zheng gu Dawu LU Haining LIU Junrong XU Sen bao Sigang gu Haihua School of Electronic Information and Electrical Engineering Shanghai JiaoTong University Shanghai Viewsource Information Science & Technology Co. Ltd. Shanghai Huahong Integrated Circuit Co. Ltd.

Power analysis is a non-invaslve attack against cryptographic hardware, which effectively exploits runtime power consumption characteristics of circuits. This paper proposes a new power model which combines Hamming Distance model and the model based on the template value of power consumption in combinational logic circuit. The new model can describe the power consumption characteristics of sequential logic circuits and those of combinational logic as well. The new model can be used to improve the existing power analysis methods and detect the information leakage of power consumption. Experimental results show that, compared to CPA（Correlation Power Analysis） method, our proposed attack which adopt the combinational model is more efficient in terms of the number of required power traces.

关键词： cryptographic hardware side channel attack power analysis combinational logic

Elsinochrome A photosensitizers:Alternative drugs for photodynamic therapy

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Journal of Innovative Optical Health Sciences 2015年第1期8卷 4-13页

作者： Tinghui Li hong Deng Jingquan Zhao Ying gu Department of Laser Medicine Chinese PLA General HospitalBeijing 100853 People's Republic of China Department of Dermatology 309 Hospital of PLABeijing 100091People's Republic of China Beijing National Laboratory for Molecular Sciences(BNLMS) Key Laboratory of PhotochemistryInstitute of Chemistry Chinese Academy of SciencesBeijing 100190 People's Republic of China

Photodynamic therapy(PDT)has already been a multifunctional modality for various tumors and nontumorous ***,the development of photosensitizers is relatively delayed,compared with the tremendous progress in laser *** A(EA),a per-ylenequinonoid pigment from China,has all the typical advantages of ***-over,singlet oxygen quantum yield of EA is superior to other kinds of photosensitizers and EA could be artifially biosynthesized at present,which make it an alternative candidate for *** review,the photophysics,photochemistry,photobiology and chemical or biological syntheses of EA photosensitizers are brielty ***,the future prospects of EA photosensitizers are also proposed.

关键词： Elsinochrome A photodynamic therapy potochemisty photophysics photobiology

Histological Outcome of Fuzheng Huayu plus Entecavir Combination Therapy in Chronic Hepatitis B Patients with Significant Liver Fibrosis

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Journal of Clinical and Translational Hepatology 2020年第3期8卷 277-284页

作者： hong-Lian gui Chang-Qing Zhao Yan Wang hong-Tu gu Wei-Jing Wang Wei Cai Qing guo Shi-San bao Lie-Ming Xu Qing Xie Department of Infectious Diseases Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Liver Cirrhosis Shuguang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina Department of Infectious Diseases Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdongChina Department of Infectious Diseases Ruijin North HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Discipline of Pathology School of Medicine Sciences and Bosch InstituteCharles Perkin CentreUniversity of SydneyNew South WalesAustralia

Publications>Journals>Journal of Clinical and Translational Hepatology>Article Full Text ORIGINAL ARTICLE OPEN ACCESS Histological Outcome of Fuzheng Huayu plus Entecavir Combination Therapy in Chronic Hepatitis B Patients with Significant Liver Fibrosis hong-Lian gui#,1,Chang-Qing Zhao#,2,Yan Wang3,hong-Tu gu2,Wei-Jing Wang1,4,Wei Cai1,Qing guo1,Shi-San bao5,Lie-Ming Xu*,2 and Qing Xie*,1 Author information Journal of Clinical and Translational Hepatology 2020;8(3):277-284DOI:10.14218/JCTH.2020.00004 Abstract Background and Aims:To evaluate the efficacy of Fuzheng Huayu(FZHY),a Chinese herbal formula,plus entecavir(ETV)in regression of liver fibrosis in chronic hepatitis B(CHB)patients with significant fibrosis/***:The current study was a two-center,randomized,double-blind and placebo-controlled pilot ***-two currently untreated chronic hepatitis B patients with Ishak fibrosis score≥3 points were identified and 1:1 randomized into FZHY plus ETV combination and placebo plus ETV *** second liver biopsy was performed after 48-week *** improvement and regression of fibrosis were *** changes in different collagen features in paired liver biopsies were evaluated by dual-photon microscopy for both ***:Forty-nine patients completed the full course of treatment;forty-six of them underwent second liver biopsy(for which twenty-two were in the combination group and twenty-four were in the control group).Compared to those in the control group,patients in the combination group had significantly higher rate of fibrosis regression(82%vs.54%)(p<0.05).Furthermore,the necroinflammatory improvement was greater in the combination group than in the control group(59%vs.25%,p<0.05).Among the more than 80 collagen parameters in the dual-photon analysis,5 decreased significantly in the combination group compared to the control group(p<0.05).However,no significant improvement was detected in either biochemical,virologi

关键词： Chronic hepatitis B Fibrosis Fuzheng Huayu tablet Entecavir

Study on ultrasonic spray technology for the coating of vascular stent

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Science China(Technological Sciences) 2011年第12期54卷 3358-3370页

作者： YI hong HUANG Jie gu XingZhong NI ZhongHua Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments School of Mechanical Engineering Southeast University Nanjing 210096 China

The ultrasonic spray technology is studied by the method of theoretical derivation, CFD simulation, spray particle diameter detection and analysis, and experimental analysis. And the ultrasonic spray process for the coating of vascular stent is also optimized. Firstly, the ultrasonic atomization physical model is established and the equation of atomization particle diameter is derived. Secondly, the ultrasonic atomization process is simulated by the CFD method, and shows three atomization patterns： incomplete atomization pattern, critical atomization pattern and jet atomization pattem. The critical amplitude and power equation for ultrasonic atomization is derived. Thirdly, experiment is conducted to study the influence of parameters including power, gas pressure, and surface tension. The results show that the spray is stable though few particles are likely to collide each other during spray moving, and the droplet diameter is about 10μm. The Rosin-Rammler distribution equation for ultrasonic spray is created, and the uniform index number is between 7.11 and 11.48. The uniformity of spray particle diameter, the efficiency of adjustment and the energy consumption are better than traditional spray technology. Lastly, the ultrasonic spray process parameters for stent coating are optimized to eliminate the common defects and obtain fine coating.

关键词： vascular stent ultrasonic atomization spray process particle size surface coating

Dependence of Initial Capacity Irreversibility on Oxygen Framework Chemistry in Li-Rich Layered Cathode Oxides

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Energy & Environmental Materials 2024年第5期7卷 57-67页

作者： Xiao Li Yibin Zhang bao Qiu guoxin Chen Yuhuan Zhou Qingwen gu Zhaoping Liu Ningbo Institute of Materials Technology&Engineering(NIMTE) Chinese Academy of SciencesNingbo 315201China College of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences(UCAS)Beijing 100049China

The undesirable capacity loss after first cycle is universal among layered cathode materials,which results in the capacity and energy *** key to resolving this obstacle lies in understanding the effect and origin of specific active Li sites during discharge *** this study,focusing on Ah-level pouch cells for reliability,an ultrahigh initial Coulombic efficiency(96.1%)is achieved in an archetypical Li-rich layered oxide *** the structure and electrochemistry analysis,we demonstrate that the achievement of high-capacity reversibility is a kinetic effect,primarily related to the sluggish Li mobility during oxygen *** oxygen reduction through small density would induce the oxygen framework contraction,which,according to Pauli repulsion,imposes a great repulsive force to hinder the transport of tetrahedral *** tetrahedral Li storage upon deep oxygen reduction is experimentally visualized and,more importantly,contributes to 6%Coulombic efficiency enhancement as well as 10%energy density improvement for pouch cells,which shows great potentials breaking through the capacity and energy limitation imposed by intercalation chemistry.

关键词： irreversible capacity loss Li transport kinetics Li-rich layered oxides oxygen framework chemistry tetrahedral Li