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Hybrid genetic Algorithms with Fuzzy Logic Controller

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Journal of Systems Engineering and Electronics 2001年第3期12卷 9-15页

作者： Zheng Dawei & gen mitsuo Department of Industrial and Systems Engineering, Ashikaga Institute of Technology, 326, Japan Department of Industrial and Systems Engineering Ashikaga Institute of Technology 326 Japan

In this paper, a new implementation of genetic algorithms (GAs) is developed for the machine scheduling problem, which is abundant among the modern manufacturing systems. The performance measure of early and tardy completion of jobs is very natural as one's aim, which is usually to minimize simultaneously both earliness and tardiness of all jobs. As the problem is NP-hard and no effective algorithms exist, we propose a hybrid genetic algorithms approach to deal with it. We adjust the crossover and mutation probabilities by fuzzy logic controller whereas the hybrid genetic algorithm does not require preliminary experiments to determine probabilities for genetic operators. The experimental results show the effectiveness of the GAs method proposed in the paper.

关键词： Machine scheduling problem Hybrid genetic algorithms Fuzzy logic.

Multidirection Update-Based Multiobjective Particle Swarm Optimization for Mixed No-Idle Flow-Shop Scheduling Problem

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Complex System Modeling and Simulation 2021年第3期1卷 176-197页

作者： Wenqiang Zhang Wenlin Hou Chen Li Weidong Yang mitsuo gen the College of Information Science and Engineering Henan University of Technologyand also with Henan Key Laboratory of Grain Photoelectric Detection and ControlZhengzhou 450001China the Fuzzy Logic Systems Institute Fukuoka 820-0067Japanand also with Tokyo University of ScienceTokyo 162-8601Japan

The Mixed No-Idle Flow-shop Scheduling Problem(MNIFSP)is an extension of flow-shop scheduling,which has practical significance and application prospects in production *** improve the efficacy of solving the complicated multiobjective MNIFSP,a MultiDirection Update(MDU)based Multiobjective Particle Swarm Optimization(MDU-MoPSO)is proposed in this *** the biobjective optimization problem of the MNIFSP with minimization of makespan and total processing time,the MDU strategy divides particles into three subgroups according to a hybrid selection *** subgroup prefers one convergence *** subgroups are individually close to the two edge areas of the Pareto Front(PF)and serve two objectives,whereas the other one approaches the central area of the PF,preferring the two objectives at the same *** MDU-MoPSO adopts a job sequence representation method and an exchange sequence-based particle update operation,which can better reflect the characteristics of sequence differences among *** MDU-MoPSO updates the particle in multiple directions and interacts in each direction,which speeds up the convergence while maintaining a good distribution *** experimental results and comparison of six classical evolutionary algorithms for various benchmark problems demonstrate the effectiveness of the proposed algorithm.

关键词： multiobjective optimization Particle Swarm Optimization(PSO) Mixed No-Idle Flow-shop Scheduling Problem(MNLFSP) multidirection update

A DE NOVO APPROACH FOR SYSTEM RELIABILITY OPTIMIZATION BY BICRITERIA 0-1 LINEAR PROGRAMMING UNDER GUB STRUCTURE

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A DE NOVO APPROACH FOR SYSTEM RELIABILITY OPTIMIZATION BY BI...

Exploring the novel role of oligodendrocyte precursor cells in phagocytosis:beyond myelinogenesis

第二届系统科学与系统工程国际会议

作者： Hyunchul Kim Kenichi Ida and mitsuo gen Soongsil Graduate School of Information Science Seoul Korea Ashikaga Institute of technology Ashikaga Japan 326

＜正＞ generally, the optimization problem of system reliability such as unit selection and allocation problem have been formulated as a single objective nonlinear integer problem and solved by various optimization te...

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Neural Regeneration Research 2025年第2期20卷 473-474页

作者： gen Hamanaka Ken Arai Neuroprotection Research Laboratories Departments of Radiology and NeurologyMassachusetts General Hospital and Harvard Medical SchoolCharlestownMAUSA

Roles of oligodendrocyte precursor cells in the central nervous system:Oligodendrocyte precursor cells(OPCs)have long been recognized for their critical role as precursors to oligodendrocytes,the primary myelin-producing *** precursors,OPCs mature and differentiate into oligodendrocytes,which contribute significantly to the formation of myelin sheaths around *** myelination,which is critical for the conduction of salutatory nerve impulses in the cerebral white matter,underscores the classical role of oligodendrocytes in central nervous system(CNS)***,because oligodendrocytes are differentiated cells that cannot proliferate.

关键词： critical system conduction

Insight Into the Separation-of-Variable Methods for the Closed-Form Solutions of Free Vibration of Rectangular Thin Plates

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 329-355页

作者： Yufeng Xing Ye Yuan gen Li Institute of Solid Mechanics Beihang University(BUAA)Beijing100191China

The separation-of-variable(SOV)methods,such as the improved SOV method,the variational SOV method,and the extended SOV method,have been proposed by the present authors and coworkers to obtain the closed-form analytical solutions for free vibration and eigenbuckling of rectangular plates and circular cylindrical *** taking the free vibration of rectangular thin plates as an example,this work presents the theoretical framework of the SOV methods in an instructive way,and the bisection–based solution procedures for a group of nonlinear eigenvalue ***,the explicit equations of nodal lines of the SOV methods are presented,and the relations of nodal line patterns and frequency orders are *** is concluded that the highly accurate SOV methods have the same accuracy for all frequencies,the mode shapes about repeated frequencies can also be precisely captured,and the SOV methods do not have the problem of missing roots as well.

关键词： Separation-of-variable method Rayleigh quotient nodal line eigenvalue equation bisection method

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人教版初中化学新教材语境变化分析与启示

教学与管理 2025年第1期 53-57页

作者：杨加根江苏省东台市安丰镇中学江苏东台224221

2024年人教版义务教育化学教材在继承传统教材的基础上有所发展和创新。从新教材的“本土化语境”“思辨性语境”“人民性语境”三个方面进行梳理,发现新教材的“本土化语境”进一步强化,“思辨性语境”负消正长,“人民性语境”更加理... 详细信息

2024年人教版义务教育化学教材在继承传统教材的基础上有所发展和创新。从新教材的“本土化语境”“思辨性语境”“人民性语境”三个方面进行梳理,发现新教材的“本土化语境”进一步强化,“思辨性语境”负消正长,“人民性语境”更加理性科学,继而针对语境调整变化探讨对今后教学的启示,为一线教师化学教学实践提供参考。

关键词：人教版初中化学新教材语境分析

Infiltration by monocytes of the central nervous system and its role in multiple sclerosis: reflections on therapeutic strategies

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Neural Regeneration Research 2025年第3期20卷 779-793页

作者： Guangyong Zhang Qing Yao Chubing Long Pengcheng Yi Jiali Song Luojia Wu Wei Wan Xiuqin Rao Yue Lin gen Wei Jun Ying Fuzhou Hua Department of Anesthesiology the Second Affiliated Hospital of Nanchang UniversityNanchangJiangxi ProvinceChina Key Laboratory of Anesthesiology of Jiangxi Province NanchangJiangxi ProvinceChina

Mononuclear macrophage infiltration in the central nervous system is a prominent feature of neuroinflammation. Recent studies on the pathogenesis and progression of multiple sclerosis have highlighted the multiple roles of mononuclear macrophages in the neuroinflammatory process. Monocytes play a significant role in neuroinflammation, and managing neuroinflammation by manipulating peripheral monocytes stands out as an effective strategy for the treatment of multiple sclerosis, leading to improved patient outcomes. This review outlines the steps involved in the entry of myeloid monocytes into the central nervous system that are targets for effective intervention: the activation of bone marrow hematopoiesis, migration of monocytes in the blood, and penetration of the blood–brain barrier by monocytes. Finally, we summarize the different monocyte subpopulations and their effects on the central nervous system based on phenotypic differences. As activated microglia resemble monocyte-derived macrophages, it is important to accurately identify the role of monocyte-derived macrophages in disease. Depending on the roles played by monocyte-derived macrophages at different stages of the disease, several of these processes can be interrupted to limit neuroinflammation and improve patient prognosis. Here, we discuss possible strategies to target monocytes in neurological diseases, focusing on three key aspects of monocyte infiltration into the central nervous system, to provide new ideas for the treatment of neurodegenerative diseases.

关键词： blood–brain barrier macrophages monocytes multiple sclerosis neuroinflammation review therapy

Contact theory and algorithm

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Science China(Technological Sciences) 2021年第8期64卷 1775-1790页

作者： SHI gen-Hua University of Chinese Academy of Sciences Beijing100049China DDA-NMM Company Beijing100026China School of Qilu Transportation Shandong UniversityJinan250100China

In discontinuous computations,contacts between two general blocks A and B are common and represent a fundamental *** paper presents a mathematically proven theory and algorithm to address this *** the proposed approach,a reference point a0 is selected from block A,and the contacts between blocks A and B are transferred to the contact of the reference point a0 and the entrance block E(A,B).Discontinuity related computations DEM,DDA,and FEM can use this mathematically proven theory and algorithm directly.

关键词： contact discontinuity entrance block computational geometry

High-temperature failure mechanism and defect sensitivity of TC17 titanium alloy in high cycle fatigue

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Journal of Materials Science & Technology 2022年第27期122卷 128-140页

作者： gen Li Chengqi Sun State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of Sciences School of Engineering Science University of Chinese Academy of Sciences

Crack initiation is an essential stage of fatigue process due to its direct effect on fatigue ***,for titanium alloys in high-temperature high cycle fatigue(HCF),the crack initiation mechanisms remain unclear and the understanding for the defect sensitivity is also *** this study,a series of fatigue tests and multi-scale microstructure characterizations were conducted to explore the high-temperature failure mechanism,and the coupled effect of temperature and defect on TC17 titanium alloy in *** was found that an oxygen-rich layer(ORL)was produced at specimen surface at elevated temperatures,and brittle fracture of ORL at surface played a critical role for surface crack initiation in ***,internal crack initiation with nanograins at high temperatures was a novel finding for the titanium *** on energy dispersive spectroscopy,electron backscatter diffraction and transmission electron microscope characterizations,the competition between surface and internal crack initiations at high temperatures was related to ORL at surface and dislocation resistance in inner *** fatigue strengths of smooth specimens decreased at elevated temperatures due to the lower dislocation *** the fatigue strengths of the specimens with defect were not very sensitive to the ***,a fatigue strength model considering the coupled effect of temperature and defect was proposed for TC17titanium alloy.

关键词： TC17 titanium alloy High temperature Defect High cycle fatigue Oxygen-rich layer Rough area