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A Multi-Objective Particle Swarm Optimization Algorithm Based on Decomposition and Multi-Selection Strategy

Computers, materials & Continua 2025年第1期82卷 997-1026页

作者： li ma Cai Dai Xingsi Xue Cheng Peng School of Computer Science Shaanxi Normal UniversityXi’an710119China Fujian Provincial Key Laboratory of Big Data Mining and Applications Fujian University of TechnologyFuzhou350118China Information Construction and management Center and Institute of Artificial Intelligence and Educational New Productivity Ningxia Normal UniversityGuyuan756099China

The multi-objective particle swarm optimization algorithm(MOPSO)is widely used to solve multi-objective optimization *** the article,amulti-objective particle swarm optimization algorithmbased on decomposition and multi-selection strategy is proposed to improve the search ***,two update strategies based on decomposition are used to update the evolving population and external archive,***,a multiselection strategy is *** first strategy is for the subspace without a non-dominated *** the neighbor particles,the particle with the smallest penalty-based boundary intersection value is selected as the global optimal solution and the particle far away fromthe search particle and the global optimal solution is selected as the personal optimal solution to enhance global *** second strategy is for the subspace with a non-dominated *** the neighbor particles,two particles are randomly selected,one as the global optimal solution and the other as the personal optimal solution,to enhance local *** third strategy is for Pareto optimal front(PF)discontinuity,which is identified by the cumulative number of iterations of the subspace without non-dominated *** the subsequent iteration,a new probability distribution is used to select from the remaining subspaces to ***,an adaptive inertia weight update strategy based on the dominated degree is designed to further improve the search ***,the proposed algorithmis compared with fivemulti-objective particle swarm optimization algorithms and five multi-objective evolutionary algorithms on 22 test *** results show that the proposed algorithm has better performance.

关键词： Multi-objective optimization multi-objective particle swarm optimization decomposition multi-selection strategy

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Advances in Graphene‑Based Electrode for Triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： Bin Xie Yuanhui Guo Yun Chen Hao Zhang Jiawei Xiao maoxiang Hou Huilong liu li ma Xin Chen Chingping Wong State Key Laboratory of Precision Electronic manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-based TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based TENGs.

关键词： Triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor

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习近平文化思想:学理依据、出场语境与实践路径

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长江师范学院学报 2025年第1期41卷 7-13页

作者：李佳榕马莉宁夏大学马克思主义学院宁夏银川750021

习近平文化思想是中华文明的智慧结晶,为物质文明与精神文明相协调的本质要求提供强有力的保证。习近平文化思想是马克思主义文化理论的发展、中华优秀传统文化的传承、中国共产党文化建设的延续和社会主义文化强国建设的需要,科学地回... 详细信息

习近平文化思想是中华文明的智慧结晶,为物质文明与精神文明相协调的本质要求提供强有力的保证。习近平文化思想是马克思主义文化理论的发展、中华优秀传统文化的传承、中国共产党文化建设的延续和社会主义文化强国建设的需要,科学地回答了中国之问、世界之问、人民之问、时代之问,彰显了习近平文化思想的价值意义。在探究形成依据和价值意义的基础上,明确贯彻习近平文化思想务必坚持理论与实践相结合、领导与人民相统一、物质与精神共发展、国际与国内相关联的实践方法,把习近平文化思想落到实处,为建设社会主义现代化强国打下坚实的思想基础。

关键词：习近平文化思想学理依据出场语境实践路径

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Global Existence and Blow-Up Results for a Classical Semilinear Parabolic Equation

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Chinese Annals of mathematics,Series B 2013年第4期34卷 587-592页

作者： li ma Department of mathematics Henan Normal university

The author studies the boundary value problem of the classical semilinear parabolic equations

关键词： Positive solution Global existence Blow-up Omega limit

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Eigenvalue Estimates and L^1 Energy on Closed manifolds

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Acta mathematica Sinica,English Series 2014年第10期30卷 1729-1734页

作者： li ma Department of mathematics He'nan Normal university

In this paper, we study lichnerowicz type estimate for eigenvalues of drifting Laplacian operator and the decay rates of L1 and L2 energy for drifting heat equation on closed Riemannian manifolds with weighted measure.

关键词： Drifting Laplacian lichnerowicz type result eigenvalue estimate monotonicity

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Mean-square exponential stability for stochastic time-varying delay systems with markovian jumping parameters:a delay decomposition approach

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Journal of Systems Engineering and Electronics 2011年第5期22卷 816-824页

作者： li ma Feipeng Da Key Laboratory of Measurement and Control for Complex Systems of Engineering Ministry of Education Research Institute of Automation Southeast University Nanjing 210096 E R. China College of Electronic and Information Engineering Jiangsu University Zhenjiang 212013 P. R. China

The mean-square exponential stability problem is investigated for a class of stochastic time-varying delay systems with markovian jumping parameters. By decomposing the delay interval into multiple equidistant subintervals, a new delay-dependent and decay-rate-dependent criterion is presented based on constructing a novel Lyapunov functional and employing stochastic analysis technique. Besides, the decay rate has no conventional constraint and can be selected according to different practical conditions. Finally, two numerical examples are provided to show that the obtained result has less conservatism than some existing ones in the literature.

关键词： stochastic systems time-varying delay markov chain linear matrix inequality (LMI).

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On a Class of Generalized Curve Flows for Planar Convex Curves

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Chinese Annals of mathematics,Series B 2021年第3期42卷 367-382页

作者： Huaqiao liU li ma School of mathematics and Statistics Henan UniversityKaifeng 475004HenanChina School of mathematics and Physics University of Science and Technology BeijingBeijing 100083China Department of mathematics Henan Normal universityXinxiang 453007HenanChina

In this paper,the authors consider a class of generalized curve flow for convex curves in the *** show that either the maximal existence time of the flow is finite and the evolving curve collapses to a round point with the enclosed area of the evolving curve tending to zero,i.e.,limt→T A(t)=0,or the maximal time is infinite,that is,the flow is a global *** the case that the maximal existence time of the flow is finite,they also obtain a convergence theorem for rescaled curves at the maximal time.

关键词： Curve flow Convex curve Longtime existence Convergence

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Sound Insulation Performance of Pyramidal Truss Core Cylindrical Sandwich Structure

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Acta Mechanica Solida Sinica 2022年第3期35卷 504-517页

作者： Yu-Zhou Wang li ma Center for Composite materials Harbin Institute of TechnologyHarbin 150080China

Recently,cylindrical structures have been exploited in various fields due to their excellent mechanical *** the increase in the application of cylindrical shell structures,researchers are paying more and more attention to its acoustic performance and sound insulation *** inserting the pyramidal truss lattice into the cylindrical shell structure,a cylindrical sandwich structure is obtained and the sound insulation performance of the structure is *** space-harmonic expansion method and the principle of virtual work are employed to establish a theoretical model for the acoustic analysis of cylindrical sandwich *** vibro-acoustic coupling is taken into account by imposing the velocity continuity condition at the fluid-solid *** sound transmission loss(STL)performance of the structure is examined by establishing both theoretical and finite element ***,the influence of various parameters on sound transmission loss is researched and analyzed.

关键词： Cylindrical sandwich structure Pyramidal truss core Sound transmission loss(STL) Vibro-acoustic coupling

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β-Arrestin-2 inhibits preference for alcohol in mice and suppresses Akt signaling in the dorsal striatum

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Neuroscience Bulletin 2013年第5期29卷 531-540页

作者： Haohong li Yezheng Tao li ma Xing liu Lan ma The State Key Laboratory of Medical Neurobiology and the Pharmacology Research Center Shanghai Medical Collegeand the Institute of Brain Science Fudan University

In this study,we investigated the role ofβ-arrestin-2in alcohol preference using the two-bottle choice and conditioned place preference procedures in wild-type（WT）andβ-arrestin-2 knockout（KO）*** and righting reflex tests were performed to test alcohol *** possible molecular signals regulated byβ-arrestin-2 were analyzed by Western *** found thatβ-arrestin-2 KO mice showed a marked increase in voluntary alcohol consumption without significant differences in preference for saccharin or aversion to *** animals also exhibited higher conditioned place preference scores for alcohol than WT ***,KO mice showed reduced sensitivity to alcohol and increased blood alcohol ***,after the free consumption of alcohol,the activities of protein kinase B and glycogen synthase kinase 3β（GSK3β）increased in the dorsal striatum of WT mice,but not in KO mice,which showed high basal activity of Akt in the dorsal *** results suggest thatβ-arrestin-2 negatively regulates alcohol preference and reward,likely through regulating the activation of signaling pathways including Akt/GSK3βin the dorsal striatum.

关键词： β-arrestin alcohol preference Akt

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Injectivity radius bound of Ricci flow with positive Ricci curvature and applications

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Frontiers of mathematics in China 2013年第5期8卷 1129-1137页

作者： li ma Anqiang ZHU Zhongyuan Institute of mathematics and Department of mathematics Henan Normal University Xinxiang 453007 China Department of mathematics Wuhan University Wuhan 430072 China

We study the injectivity radius bound for 3-d Ricci flow with bounded curvature. As applications, we show the long time existence of the Ricci flow with positive Ricci curvature and with curvature decay condition at i... 详细信息

关键词： Injectivity radius bound Ricci flow positive Ricci curvature global solution

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