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ON FUZZY h-IDEALS OF HEMIRINGS

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Journal of Systems Science & Complexity 2007年第3期20卷 470-478页

作者： Xueling MA and jianming zhan Department of Mathematics Hubei Institute for Nationalities Enshi 445000 China.

The concept of quasi-coincidence of a fuzzy interval value in an interval valued fuzzy set is considered. In fact, this concept is a generalized concept of the quasi-coincidence of a fuzzy point in a fuzzy set. By using this new concept, the authors define the notion of interval valued （∈, ∈ Vq）fuzzy h-ideals of hemirings and study their related properties. In addition, the authors also extend the concept of a fuzzy subgroup with thresholds to the concept of an interval valued fuzzy h-ideal with thresholds in hemirings.

关键词： Hemirings h-ideals interval valued (∈ ∈ Vq)-fuzzy h-ideals interval valued fuzzy h-ideals with thresholds.

ON (∈,∈ ∨q)-FUZZY FILTERS OF BL-ALGEBRAS

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Journal of Systems Science & Complexity 2008年第1期21卷 144-158页

作者： Xueling MA jianming zhan Department of Mathematics Hubei Institute for Nationalities Enshi 445000 China.

The authors introduce the notions of （∈, ∈ ∨q）-fuzzy Boolean （implicative, positive implicative, and fantastic） filters in BL-algebras, present some characterizations on these generalized fuzzy filters, and describe the relations among these generalized fuzzy filters. It is proved that an （∈, ∈ ∨q）fuzzy filter in a BL-algebra is Boolean （implicative） if and only if it is both positive implicative and fantastic.

关键词： BL-algebra filter (∈ ∈ ∨q)-fuzzy Boolean (implicative positive implicative and fantastic) filter.

Three-Way Behavioral Decision Making With Hesitant Fuzzy Information Systems:Survey and Challenges

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IEEE/CAA Journal of Automatica Sinica 2023年第2期10卷 330-350页

作者： jianming zhan Jiajia Wang Weiping Ding Yiyu Yao the School of Mathematics and Statistics Hubei Minzu UniversityEnshi 445000China Xidian University Xi’an 710126China IEEE the School of Computer Science and Technology Nantong UniversityNantong 226019China the Department of Computer Science University of ReginaRegina S4S 0A2Canada

Three-way decision(T-WD)theory is about thinking,problem solving,and computing in *** decision making(BDM)focuses on effective,cognitive,and social processes employed by humans for choosing the optimal object,of which prospect theory and regret theory are two widely used *** hesitant fuzzy set(HFS)captures a series of uncertainties when it is difficult to specify precise fuzzy membership *** by the principles of three-way decisions as thinking in threes and integrating these three topics together,this paper reviews and examines advances in three-way behavioral decision making(TW-BDM)with hesitant fuzzy information systems(HFIS)from the perspective of the past,present,and ***,we provide a brief historical account of the three topics and present basic ***,we summarize the latest development trends and examine a number of basic issues,such as one-sidedness of reference points and subjective randomness for result values,and then report the results of a comparative analysis of existing ***,we point out key challenges and future research directions.

关键词： Hesitant fuzzy information system(HFIS) prospect theory regret theory three-way decision(T-WD)

GENERALIZED FUZZY FILTERS OF BL-ALGEBRAS

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Applied Mathematics(A Journal of Chinese Universities) 2007年第4期22卷 490-496页

作者： Ma Xueling zhan jianming Xu Yang Dept. of Math. Hubei Institute for Nationalities Enshi 445000 China. Dept. of Appl. Math. Southwest Jiaotong University Chengdu 610031 China.

The concept of quasi-coincidence of a fuzzy interval value with an interval valued fuzzy set is considered. In fact, this is a generalization of quasi-coincidence of a fuzzy point with a fuzzy set. By using this new idea, the notion of interval valued （∈,∈ ∨q）-fuzzy filters in BL-algebras which is a generalization of fuzzy filters of BL-algebras, is defined, and related properties are investigated. In particular, the concept of a fuzzy subgroup with thresholds is extended to the concept of an interval valued fuzzy filter with thresholds in BL-algebras.

关键词： filter interval valued (∈,∈ ∨q)-fuzzy filter interval valued fuzzy filter with thresholds.

Measuring the resilience of an airport network

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Chinese Journal of Aeronautics 2019年第12期32卷 2694-2705页

作者： Yanjun WANG jianming zhan Xinhua XU Lishuai LI Ping CHEN Mark HANSEN College of Civil Aviation Nanjing University of Aeronautics and AstronauticsNanjing 210016China Department of Aeronautics and Astronautics Massachusetts Institute of TechnologyCambridge 02139USA Air Traffic Management Bureau Beijing 100012China Xiamen Airlines Xiamen 361006China Department of Systems Engineering and Engineering Management City University of Hong KongKowloonHong KongChina State Key Laboratory of Air Traffic Management System and Technology Nanjing 210000China Department of Civil and Environmental Engineering University of CaliforniaBerkeleyCA 94720USA

Resilience is the ability of a system to withstand and stay operational in the face of an unexpected disturbance or unpredicted changes. Recent studies on air transport system resilience focus on topology characteristics after the disturbance and measure the robustness of the network with respect to connectivity. The dynamic processes occurring at the node and link levels are often ignored. Here we analyze airport network resilience by considering both structural and dynamical aspects. We develop a simulation model to study the operational performance of the air transport system when airports operate at degraded capacity rather than completely shutting down. Our analyses show that the system deteriorates soon after disruptive events occur but returns to an acceptable level after a period of time. Static resilience of the airport network is captured by a phase transition in which a small change to airport capacity will result in a sharp change in system punctuality. After the phase transition point, decreasing airport capacity has little impact on system performance. Critical airports which have significant influence on the performance of whole system are identified, and we find that some of these cannot be detected based on the analysis of network structural indicators alone. Our work shows that air transport system’s resilience can be well understood by combining network science and operational dynamics.

关键词： Air transport Complex networks Network resilience Resilience indicator Transportation resilience

Modeling and Simulation of Adaptive Surface Tracked Vehicle Based on RecurDyn

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Open Journal of Modelling and Simulation 2013年第4期1卷 37-41页

作者： Wei Chen jianming zhan Hang Zhou Faculty of Mechanical Engineering and Mechanics Ningbo University Ningbo China

In order to improve the adaptability of the tracked vehicle in the road and strengthen the grip of the tracked vehicle, a track surface adaptive mechanism was provided. In theory, it has been proved practically. Meanwhile, RecurDyn, which is a multi-body kinematics software, was used to build a multi-body soft hybrid model, based on structure, elasticity, linear damping adaptive tracked vehicle;meanwhile the model was used to carry on the kinematics simulation. Through the comparison between simulated motion trail and that of traditional motion trail, this paper analyzed the deviation of the motion trail and also simulated the motion trail of the warped surface so as to test the adaptive ability of the mechanism. According to the results, the adaptive mechanism was equipped with great surface adaptability. It can also adapt to the complex warped surface, and enjoy a damping effect.

关键词： Warped Surface Adaptation Tracked Vehicle Modeling and Simulation Adaptive Mechanism

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液流悬浮超光滑加工硬脆材料去除机理

农业机械学报 2008年第11期39卷 164-168页

作者：曹志强詹建明张富北京七星华创电子股份有限公司宁波大学工学院吉林大学机械科学与工程学院

结合动态压痕断裂力学和粒子冲击磨损理论,建立了纳米磨粒冲击工件表面微观粗糙峰的理论模型,研究了加工区内材料的去除机理,并进行了铝合金和K9玻璃液流悬浮加工实验。理论分析和实验结果表明,液流悬浮超光滑加工是加工液中的纳米磨粒... 详细信息

结合动态压痕断裂力学和粒子冲击磨损理论,建立了纳米磨粒冲击工件表面微观粗糙峰的理论模型,研究了加工区内材料的去除机理,并进行了铝合金和K9玻璃液流悬浮加工实验。理论分析和实验结果表明,液流悬浮超光滑加工是加工液中的纳米磨粒冲击工件表面实现对表面粗糙峰微去除的过程,能够在K9玻璃表面获得无加工变质层和亚表面损伤的纳米级超光滑表面。

关键词：硬脆材料超光滑表面液流悬浮加工机理微去除

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非球面柔顺研抛的边缘效应机理研究

中国机械工程 2013年第12期24卷 1587-1591页

作者：詹建明章民庆宁波大学宁波315211

在整个非球面柔顺研抛的过程中,如果运动速度、进给速度和外加压力都不发生变化,非球面边缘区域的研抛进给路径是其他区域的一半,所以理论上边缘区域去除量应该更少,但实验结果正好相反。针对该边缘效益,从研抛过程的基础动力学状态转... 详细信息

在整个非球面柔顺研抛的过程中,如果运动速度、进给速度和外加压力都不发生变化,非球面边缘区域的研抛进给路径是其他区域的一半,所以理论上边缘区域去除量应该更少,但实验结果正好相反。针对该边缘效益,从研抛过程的基础动力学状态转换过程入手,重新研究了柔顺研抛的工艺过程,发现在边缘区域虽然加工时间以线性方式减少一半,但接触压力以二阶幂指数方式由原值递增至无穷大,决定去除效率的因素中,接触压力比加工时间更占主导,所以边缘区域实际去除量会更多。

关键词：非球面柔顺研抛适应性边缘效应成形机理

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机器人超声研抛自由曲面的精加工系统

中国机械工程 2000年第8期11卷 852-854页

作者：詹建明赵继祝佩兴吉林大学

论述自由曲面精密加工领域内机器人的应用背景 ;介绍机器人超声弹性研抛系统的构成及工作原理 ;建立面向自由曲面的机器人加工系统的控制模型 ;实验证实该系统方案的可行性和技术的先进性。

关键词：自由曲面机器人超声加工弹性研抛超声研抛