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Chinese Journal of Electronics 2024年第1期33卷 264-273页

作者： Tingling WANG Xiaohe YAN School of Electric Engineering North China University of Water Resources and Electric Power wenzhou polytechnic

With the rapid development of industrial parks, its load model research has become a hot spot. In order to study the load of power system in industrial park, based on the characteristics of the industrial park load, a comprehensive load admittance static model with full voltage range adaptability is considered, and a comprehensive load model of distribution network of the industrial park is established. A complete parameter identification of the model is carried out through chaos particle swarm optimization. The simulation results show that the model can effectively describe the load characteristics of the distribution network in industrial parks.

关键词： Chaos Adaptation models Analytical models Parameter estimation Induction motors Simulation Distribution networks

Multi-level temporal feature fusion with feature exchange strategy for multiple object tracking

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Optoelectronics Letters 2024年第8期20卷 505-512页

作者： GE Yisu YE Wenjie ZHANG Guodao LIN Mengying College of Computer Science and Artificial Intelligence Wenzhou University School of Computer Science and Technology Zhejiang Normal University Department of Digital Media Technology Hangzhou Dianzi University College of Intelligent Manufacturing Wenzhou Polytechnic

With the deepening of neural network research, object detection has been developed rapidly in recent years, and video object detection methods have gradually attracted the attention of scholars, especially frameworks including multiple object tracking and detection. Most current works prefer to build the paradigm for multiple object tracking and detection by multi-task learning. Different with others, a multi-level temporal feature fusion structure is proposed in this paper to improve the performance of framework by utilizing the constraint of video temporal consistency. For training the temporal network end-to-end, a feature exchange training strategy is put forward for training the temporal feature fusion structure efficiently. The proposed method is tested on several acknowledged benchmarks, and encouraging results are obtained compared with the famous joint detection and tracking framework. The ablation experiment answers the problem of a good position for temporal feature fusion.

关键词： A

Design of Medical Rehabilitation Experience System Based on Extended Reality

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计算机科学与技术汇刊（中英文版） 2024年第1期11卷 6-7页

作者： Zhengjie Xu Qi Zhang Kaidi Xue Hongjia Yang Luyao Wang Haolong Yang Artificial Intelligence College Zhejiang Dongfang PolytechnicWenzhouChina Metropolitan College Boston UniversityBostonUSA

This project integrates Extended Reality technology with medical rehabilitation,integrating cloud *** experience systems,adaptation platforms,and digital scene *** is a innovative application research in the era of metaverset medical *** project uses the Maya engine for the creation of digital assets,with Unity as the main functional development platform and PICO4 as the core device,to achieve interactive and fun experience effects for various rehabilitation training *** solves the problems of patients being dull,low participation,lack of confidence in traditional rehabilitation *** well as the inability of medical staff to monitor patient progress in real time and adjust rehabilitation plans better.

关键词： Relabilitation Extended Reality Interaction Unity

Privacy Enhanced Mobile User Authentication Method Using Motion Sensors

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Computer Modeling in Engineering & Sciences 2024年第3期138卷 3013-3032页

作者： Chunlin Xiong Zhengqiu Weng Jia Liu Liang Gu Fayez Alqahtani Amr Gafar Pradip Kumar Sharma Shenzhen Institutes of Advanced Technology Chinese Academy of SciencesShenzhen518052China Sangfor Technologies Inc. Shenzhen518055China School of Data Science and Artificial Intelligence Wenzhou University of TechnologyWenzhou325035China College of Computer Science&Technology Zhejiang University of TechnologyHangzhou310023China Software Engineering Department College of Computer and Information SciencesKing Saud UniversityRiyadh12372Saudi Arabia Math&Computer Science Department Faculty of ScienceMenofia UniversityShebin El-KomEgypt Computing Science Department University of AberdeenAberdeenUK

With the development of hardware devices and the upgrading of smartphones,a large number of users save privacy-related information in mobile devices,mainly smartphones,which puts forward higher demands on the protection of mobile users’privacy *** present,mobile user authenticationmethods based on humancomputer interaction have been extensively studied due to their advantages of high precision and non-perception,but there are still shortcomings such as low data collection efficiency,untrustworthy participating nodes,and lack of *** this end,this paper proposes a privacy-enhanced mobile user authentication method with motion sensors,which mainly includes:(1)Construct a smart contract-based private chain and federated learning to improve the data collection efficiency of mobile user authentication,reduce the probability of the model being bypassed by attackers,and reduce the overhead of data centralized processing and the risk of privacy leakage;(2)Use certificateless encryption to realize the authentication of the device to ensure the credibility of the client nodes participating in the calculation;(3)Combine Variational Mode Decomposition(VMD)and Long Short-TermMemory(LSTM)to analyze and model the motion sensor data of mobile devices to improve the accuracy of model *** experimental results on the real environment dataset of 1513 people show that themethod proposed in this paper can effectively resist poisoning attacks while ensuring the accuracy and efficiency of mobile user authentication.

关键词： Mobile authentication blockchain federated learning smart contract certificateless encryption VMD LSTM

Simulation of Surface-Induced Morphology Transition and Phase Diagram of Linear Triblock Copolymers under Spherical Confinement

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Chinese Journal of Polymer Science 2023年第1期41卷 166-178页

作者： Ji Wu Shang-Ting Chen Shi-Ben Li Lu-Ming Liu Xiang-Hong Wang Wen-Chang Lang Key Laboratory of Surface modification of Polymer Materials Wenzhou PolytechnicWenzhou325035China Department of Physics Wenzhou UniversityWenzhou325035China Department of Mechanical Engineering Shanghai Technical Institute of Electronics&InformationShanghai201411China

In this work,the nanostructures and phase diagrams of lamella-forming and cylinder-forming ABC linear triblock copolymers confined in spherical cavities are investigated on the basis of real-space self-consistent field *** designate specific monomer-monomer interactions and block composition and study morphology transformation under spherical confinement with a neutral *** potentially valuable morphological structures,such as two-or three-colored spheres,rotational structures,and biconcave disklike structures,are identified in the phase diagrams constructed on confining *** confinement induces an obvious transformation of self-assembled structures,which still retain some of the conformational properties of bulk *** then focus on phase morphology under preferential *** can smooth out differences in block ratios,and similar structures can be assembled from block copolymers with different *** incorporate a non-centrosymmetric feature into our spherical confinement model and design a Janus adsorption field to explore unpredictable microphase *** show that the unbalance of the block ratio causes adsorption to exert a stable shaping effect on *** influence of confinement on the degree of freedom of polymer chains disrupts the influence of adsorption on the complexity and transformation activity of self-assembled *** theoretical results correspond to recent experimental observations and contribute to the field functional material synthesis.

关键词： Triblock copolymer Self-assembly structure Phase transition Three-dimensional confinement Surface adsorption

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Adaptive Barebones Salp Swarm Algorithm with Quasi-oppositional Learning for Medical Diagnosis Systems: A Comprehensive Analysis

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Journal of Bionic Engineering 2022年第1期19卷 240-256页

作者： Jianfu Xia Hongliang Zhang Rizeng Li Zhiyan Wang Zhennao Cai Zhiyang Gu Huiling Chen Zhifang Pan Department of General Surgery The Second Affiliated Hospital of Shanghai University(Wenzhou Central Hospital)Wenzhou325000ZhejiangPeople’s Republic of China Soochow University SuzhouJiangsuPeople’s Republic of China Department of Computer Science and Artificial Intelligence Wenzhou UniversityWenzhou325035People’s Republic of China School of Artificial Intelligence Jilin International Studies UniversityChangchun130000People’s Republic of China wenzhou polytechnic Wenzhou325035People’s Republic of China The First Affiliated Hospital of wenzhou Medical University Wenzhou325000People’s Republic of China

The Salp Swarm Algorithm(SSA)may have trouble in dropping into stagnation as a kind of swarm intelligence *** paper developed an adaptive barebones salp swarm algorithm with quasi-oppositional-based learning to compensate for the above weakness called *** the proposed QBSSA,an adaptive barebones strategy can help to reach both accurate convergence speed and high solution quality;quasi-oppositional-based learning can make the population away from traping into local optimal and expand the search *** estimate the performance of the presented method,a series of tests are ***,CEC 2017 benchmark test suit is used to test the ability to solve the high dimensional and multimodal problems;then,based on QBSSA,an improved Kernel Extreme Learning Machine(KELM)model,named QBSSA–KELM,is built to handle medical disease diagnosis *** the test results and discussions state clearly that the QBSSA is superior to and very competitive to all the compared algorithms on both convergence speed and solutions accuracy.

关键词： Salp swarm algorithm Bare bones Quasi-oppositional based learning Function optimizations Kernel extreme learning machine

Conformational Behavior of Single Circular Semiflexible Polyelectrolyte in the Presence of Multivalent Counterions

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Chinese Journal of Polymer Science 2023年第3期41卷 448-458,I0010页

作者： Zhi-Yong Yang Wen-Long Lin Ai-Hua Chai Dan Lu Nian-Qian Kang Lin-Xi Zhang Department of Physics Jiangxi Agricultural UniversityNanchang 330045China Lucheng College Wenzhou PolytechnicWenzhou 325006China College of data science Jiaxing UniversityJiaxing 314001China Department of Physics Zhejiang UniversityHangzhou 310027China

Langevin dynamics simulations are employed to explore the effects of chain stiffness and electrostatic interaction(EI) on the conformational behavior of a circular semiflexible polyelectrolyte(CSPE) in presence of trivalent *** investigate the effect of bending energy b and the dimensionless Bjerrum length A on the conformational behavior of the CSPE with a fixed chain *** competition among the EIs,chain stiffness and entropy of the system leads to rich conformations for the *** the b is less than or equal to 50,The shape of the CSPE changes from a oblate ring to a rod at small A,then to a toroid at intermediate A,and finally to a globule at very large ***,the globular conformation is not observed for large *** addition,we find that the number of torus ring increases with A increase,while decreases with b *** study should be helpful in gaining insight into the conformational behaviour of charged biopolymer.

关键词： Langevin dynamics simulation Circular semiflexible polyelectrolyte Trivalent counterions Electrostatic interaction

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A Double Adaptive Random Spare Reinforced Sine Cosine Algorithm

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Computer Modeling in Engineering & Sciences 2023年第9期136卷 2267-2289页

作者： Abdelazim G.Hussien Guoxi Liang Huiling Chen Haiping Lin Department of Computer and Information Science Linköing UniversityLinköing4189Sweden Faculty of Science Fayoum UniversityFayoum63514Egypt Department of Information Technology Wenzhou PolytechnicWenzhou325035China Artificial Intelligence Wenzhou UniversityWenzhou325035China College of Information Engineering Hangzhou Vocational&Technical CollegeHangzhou310018China

Many complex optimization problems in the real world can easily fall into local optimality and fail to find the optimal solution,so more new techniques and methods are needed to solve such *** algorithms have received a lot of attention in recent years because of their efficient performance and simple *** Cosine Algorithm(SCA)is a recent Metaheuristic algorithm that is based on two trigonometric functions Sine&***,like all other metaheuristic algorithms,SCA has a slow convergence and may fail in sub-optimal *** this study,an enhanced version of SCA named RDSCA is suggested that depends on two techniques:random spare/replacement and double adaptive *** first technique is employed in SCA to speed the convergence whereas the second method is used to enhance exploratory searching *** evaluate RDSCA,30 functions from CEC 2017 and 4 real-world engineering problems are ***,a nonparametric test called Wilcoxon signed-rank is carried out at 5%level to evaluate the significance of the obtained results between RDSCA and the other 5 variants of *** results show that RDSCA has competitive results with other metaheuristics algorithms.

关键词： Sine cosine algorithm global optimization swarm intelligence meta-heuristic algorithms

Design of Teaching System of Industrial Robots Using Mixed Reality Technology

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Computers, Materials & Continua 2022年第10期73卷 1317-1327页

作者： Guwei Li Yun Yang Zhou Li Jingchun Fan Zhejiang Dongfang polytechnic WenZhou325000China Compugen Ltd. TorontoM2 J4A6Canada

Traditional teaching and learning about industrial robots uses abstract instructions,which are difficult for students to ***,there are safety issues associated with the use of practical training *** address these problems,this paper developed an instructional system based on mixed-reality(MR)technology for teaching about industrial *** Siasun T6A-series robots were taken as a case study,and the Microsoft MR device HoloLens-2 was used as the instructional ***,the parameters of the robots were analyzed based on their structural ***,the robot modules were decomposed,and 1:1 three-dimensional(3D)digital reproductions were created in ***,a library of digital models of the robot components was established,and a 3D spatial operation interface for the virtual instructional system was created in ***,a C#code framework was established to satisfy the requirements of interactive functions and data transmission,and the data were saved in JSON *** this way,a key technique that facilitates the understanding of spatial structures and a variety of human-machine interactions were ***,an instructional system based on HoloLens-2 was established for understanding the structures and principles of *** results showed that the instructional system developed in this study provides realistic 3D visualizations and a natural,efficient approach for human-machine *** system could effectively improve the efficiency of knowledge transfer and the student’s motivation to learn.

关键词： Mixed reality space interaction instructional system

Modulatory effects of transcutaneous auricular vagus nerve stimulation (taVNS) on attentional processes

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General Psychiatry 2023年第6期36卷 512-522页

作者： Yuxin Chen Haoyu Yang Faguang Wang Xuejing Lu Li Hu CAS Key Laboratory of Mental Health Institute of PsychologyChinese Academy of SciencesBeijingChina Department of Psychology Universityof ChineseAcademy of SciencesBeijingChina School of Intelligent Manufacturing Wenzhou PolytechnicWenzhouZhejiangChina

Background The modulatory effect of transcutaneous auricular vagus nerve stimulation(taVNS)on attention has varied in previous *** inconsistency might be attributed to the combined influence of the modulation effect on the different attentional functions,including alerting,orienting and executive *** We aimed to preliminarily examine the modulatory effectsoftaVNS on *** Fifty-nine healthy participants were recruited and were randomly assigned to taVNS(receiving taVNS for 20 minutes)or control(receiving taVNS for 30 seconds)*** participants underwent a dot-probe task before and after the taVNS/control *** behavioural performance and electroencephalographic signals during pre-and post-tests were recorded,and different observed variables were extracted and analysed to characterise different attentional *** We observed that active taVNS applied at the left ear significantly improved the overall behavioural performance,that is,shorter reaction time(RT)and lower intra-individual reaction time variability(lIRTV)for right-hand responses when compared with the control *** addition,active taVNS resulted in larger P3 and movement-related cortical potential(MRCP)amplitudes associated with right-hand reactions than the control *** taVNS also decreased the difference between the pre-and post-tests in the power spectral density of spontaneous high-αband oscillations at C4 ***,parallel mediation models for right-hand responses showed that the change of P3 amplitude mediated the effects of taVNS on RT and *** contrast,the change of MRCP amplitude suppressed the effect of taVNS on the *** Our results provided behavioural and brain evidence supporting the effects of taVNS on different attentional systems,and their interaction further shaped behavioural performance,suggesting a promising role of taVNS in cognitive enhancement.

关键词： stimulation vagus behaviour