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Speed Control System Based on Fuzzy Neural Network of BLDCM

第37届中国控制会议

作者： wei-jie tang Shao-Yong Cao School of Industrial Automation Beijing Institute of Technology

DC motor is widely used in various fields for its good starting and speed regulating *** many cases,it is necessary to control the speed of the motor *** the conventional PID control algorithm can solve most of the control problems,the conventional PID control algorithm also has many defects,for example,parameters cannot adapt to the change of the *** fuzzy control does not rely on the mathematical model of the control system,and simulates the control experience of human control,which has high *** this paper,the fuzzy control is combined with the conventional PID control to control the speed of the DC *** parameters are adaptively obtained by fuzzy control *** control system model is set up in Simulink,and the control algorithm is deployed on the hardware platform through the automatic code *** the hardware-in-the-loop（HIL） experiment,the algorithm is quickly verified.

关键词： DC motor Fuzzy PID HIL Experiment Automatic Code Generation

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Speed Control System Based on Fuzzy Neural Network of BLDCM

Photoinduced radical sulfur dioxide insertion with asymmetric cyclization of alkenes: accessing β-chiral sulfones bearing S-stereocentric cyclic sulfinamides

第37届中国控制会议

作者： Shao-Yong CAO wei-jie tang School of Industrial Automation Zhuhai College of Bejing Institute of Technology

A fuzzy neural network controller is designed for control of the BLDCM rotor speed in our *** controller uses the BP network as the basic *** rules,fuzzy variables and membership functions are integrated by Mamdani fuzzy control method in the network structure and parameters;BP algorithm is applied to adjust the weights of the network,which is equal with membership,enabling the features of fuzzy control with fuzzy reasoning,fuzzy decision-making,self-learning neural networks,adaptive and parallel data *** simulation result shows fuzzy neural network control method improves the static and dynamic performance compared to the other two control methods（traditional PI and fuzzy control）.The speed increases faster,the overshoot reduces significantly,the motor speed reaches stability quickly at rated speed,added anti-interference *** speed control system overall shows high reliability,stability and *** conclusion,the fuzzy neural network control,when used in permanent magnet brushless DC motor speed control system,greatly improves the dynamic and static performance and the anti-interference capability of the *** is with high practical value.

关键词： Fuzzy Neural Network BLDCM Speed Control System

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Science China Chemistry 2025年第1期68卷 257-263页

作者： Jiapian Huang Chenxin Wang Xu Wang Xiaoyu Zhou wei Xiao jie Wu School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies Taizhou University State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences School of Chemistry and Chemical Engineering Henan Normal University

The generation of various β-chiral sulfones bearing chiral cyclic sulfinamides through photoredox-catalyzed sulfur dioxide insertion with asymmetric radical cyclization is described. This method features a broad substrate scope and excellent stereospecificity. Computational studies reveal that the dispersion interaction between sulfinyl group and CH2SO2Ph group plays a crucial role in the stereoselectivity control.

关键词： β-chiral sulfones chiral cyclic sulfinamides sulfur dioxide insertion asymmetric radical cyclization stereoselectivity

Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： jie Wang wei Wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

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重谈酵母遗传学

生物化学与生物物理进展 2010年第1期37卷 5-6页

作者：杨真威唐捷中国科学院生物物理研究所北京100101

遗传学是研究生物的遗传与变异的科学,是研究基因的结构、功能、变异、传递和表达规律的学科.遗传学发展的早期,遗传学家们研究的对象很广泛,随着时代的发展。

关键词： yeast genetics Saccharomyces cerevisiae RNA splicing-related proteins genetic screen

Catalyst–Support Interaction in Polyaniline‑Supported Ni_(3)Fe Oxide to Boost Oxygen Evolution Activities for Rechargeable Zn‑Air Batteries

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Nano-Micro Letters 2025年第1期17卷 176-190页

作者： Xiaohong Zou Qian Lu Mingcong tang jie Wu Kouer Zhang Wenzhi Li Yunxia Hu Xiaomin Xu Xiao Zhang Zongping Shao Liang An Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and TechnologyNanjing University of Information Science and TechnologyNanjing 210044People’s Republic of China Department of Chemistry The Chinese University of Hong KongMa Lin BuildingShatinHong Kong SAR 999077People’s Republic of China WA School of Mines:Minerals Energy and Chemical Engineering(WASM‑MECE)Curtin UniversityPerthWA 6102Australia Research Institute for Advanced Manufacturing The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Research Institute for Smart Energy The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China

Catalyst–support interaction plays a crucial role in improving the catalytic activity of oxygen evolution reaction(OER).Here we modulate the catalyst–support interaction in polyaniline-supported Ni_(3)Fe oxide(Ni_(3)Fe oxide/PANI)with a robust hetero-interface,which significantly improves oxygen evolution activities with an overpotential of 270 mV at 10 mA cm^(-2)and specific activity of 2.08 mA cm_(ECSA)^(-2)at overpotential of 300 mV,3.84-fold that of Ni_(3)Fe *** is revealed that the catalyst–support interaction between Ni_(3)Fe oxide and PANI support enhances the Ni–O covalency via the interfacial Ni–N bond,thus promoting the charge and mass transfer on Ni_(3)Fe *** the excellent activity and stability,rechargeable Zn-air batteries with optimum Ni_(3)Fe oxide/PANI are assembled,delivering a low charge voltage of 1.95 V to cycle for 400 h at 10 mA cm^(-2).The regulation of the effect of catalyst–support interaction on catalytic activity provides new possibilities for the future design of highly efficient OER catalysts.

关键词： Catalyst-support interaction Supported catalysts Heterointerface Oxygen evolution reaction Zn-air batteries

A six-variable quasi-3D isogeometric approach for free vibration of functionally graded graphene origami-enabled auxetic metamaterial plates submerged in a fluid medium

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 157-176页

作者： wei CHEN Zhihong tang Yufen LIAO Linxin PENG College of Civil Engineering University of South China College of Civil Engineering and Architecture Guangxi University Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education Guangxi University

This paper presents, for the first time, an effective numerical approach based on the isogeometric analysis(IGA) and the six-variable quasi-three dimensional(3D)higher-order shear deformation theory(HSDT) to study the free vibration characteristics of functionally-graded(FG) graphene origami(GOri)-enabled auxetic metamaterial(GOEAM) plates submerged in a fluid medium. The plate theory incorporates the thickness stretching and the effects of transverse shear deformation without using any shear correction factors. The velocity potential function and Bernoulli's equation are used to derive the hydrodynamic pressure acting on the plate surface. Both horizontally and vertically immersed plate configurations are considered here in the form of inertia *** plates are composed of multilayer GOEAMs, with the GOri content varying through the plate's thickness in a layer-wise manner. This design results in graded auxetic *** material properties are evaluated by mixing rules and a genetic programming(GP)-assisted micromechanical model. The governing equations of motion for the FG-GOEAM plates immersed in a fluid medium are derived by Hamilton's principle. After validating the convergence and accuracy of the present model, a comprehensive parametric study is carried out to examine the effects of the GOri content, GOri distribution pattern, GOri folding degree, fluid level, immersed depth, and geometric parameter on the natural frequencies of the FG-GOEAM plates. The results show that the natural frequencies for the four GOri distribution patterns increase with the increase in the layer number when the lay number is fewer than 10, and then stabilize after the layer number reaches ***, in general, the natural frequency of the FG-GOEAM plate in a vacuum or fluid increases when the GOri content increases, while decreases when the GOri folding degree increases. Some additional findings related to the numerical results are presented in the conclusions. It is belie

关键词： Equations of motion

Integration of perioperative features and intragraft TCF7L2 expression to predict lipid metabolic disorder in liver transplant recipients

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Science China Life Sciences 2025年第1期68卷 297-299页

作者： Junbin Zhou Rongli wei Guanghan Fan Zhengxing Lian Xuanyu Zhang Linsong tang Zhetuo Qi Haiyang Xie Shusen Zheng Qiang wei Xiao Xu Department of Hepatobiliary and Pancreatic Surgery People's Hospital of LishuiAffiliated Lishui Hospital of Wenzhou Medical UniversityThe First Affiliated Hospital of Lishui University NHFPC Key Laboratory of Combined Multi-Organ Transplantation Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province Department of Hepatobiliary and Pancreatic SurgeryHangzhou First People's Hospital Department of Hepatobiliary and Pancreatic Surgery The First Affiliated HospitalZhejiang University School of Medicine Department of Urology The Second Affiliated HospitalZhejiang University School of Medicine Department of Hepatobiliary and Pancreatic Surgery Department of Liver TransplantationShulan (Hangzhou) Hospital Hangzhou Medical College Zhejiang University School of Medicine

Dear Editor, Liver transplantation(LT) is the only curative therapy for patients with endstage liver disease(He et al., 2023; Ling et al., 2022). Post-transplant hypertriglyceridemia(PTHT), which has an incidence of up to 32.8% in 6 months after LT, is one of the major post-transplant complications(Toshima et al., 2020).

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胆汁酸衍生物的生物活性研究新进展

生命科学 2017年第1期29卷 90-96页

作者：毛世伟汤杰杨帆华东师范大学化学与分子工程学院上海分子治疗与新药创制工程技术研究中心上海200062

胆汁酸是一类由含1~3个羟基的刚性甾体骨架和带有末端羧基的烷烃支链构成的内源性甾体类天然产物,具有多种生物活性。基于胆汁酸骨架的结构修饰及其生物活性研究对于药理学和药物发现具有重要意义。现仅就2013年以来胆汁酸衍生物及其生... 详细信息

胆汁酸是一类由含1~3个羟基的刚性甾体骨架和带有末端羧基的烷烃支链构成的内源性甾体类天然产物,具有多种生物活性。基于胆汁酸骨架的结构修饰及其生物活性研究对于药理学和药物发现具有重要意义。现仅就2013年以来胆汁酸衍生物及其生物活性研究方面的最新进展进行简要综述。

关键词：胆汁酸衍生物生物活性药物发现