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ROBUST CONSENSUS FOR MULTI-AGENT SYSTEMS OVER UNBALANCED DIRECTED NETWORKS

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Journal of Systems Science & Complexity 2014年第6期27卷 1121-1137页

作者： LI Dequan WANG Xiaofan yin zhixiang School of Science Anhui University of Science and Technology Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China

In this paper,a distributed consensus protocol is proposed for discrete-time single-integer multi-agent systems with measurement noises under general fixed directed *** time-varying control gains satisfying the stochastic approximation conditions are introduced to attenuate noises,thus the closed-loop multi-agent system is intrinsically a linear time-varying stochastic difference *** the mean square consensus convergence analysis is developed based on the Lyapunov technique,and the construction of the Lyapunov function especially does not require the typical balanced network topology condition assumed for the existence of quadratic Lyapunov ***,the proposed consensus protocol can be applicable to more general networked multi-agent systems,particularly when the bidirectional and/or balanced information exchanges between agents are not *** the proposed protocol,it is proved that the state of each agent converges in mean square to a common random variable whose mathematical expectation is the weighted average of agents' initial state values;meanwhile,the random variable's variance is bounded.

关键词： Consensus directed network distributed algorithm stochastic approximation.

Integer Programming Problem Based on Plasmid DNA Computing Model

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Chinese Journal of Electronics 2017年第6期26卷 1284-1288页

作者： yin zhixiang CUI Jianzhong YANG Jing School of Mathematics and Big Data Anhui University of Science and Technology Huainan Union University

A DNA algorithm by operating on plasmids was presented to solve a special integer programming, a typical hard computing problem. The DNA algorithm employed double-stranded molecules to encode variables of 0-1 programming problem, the encoded DNA molecules were inserted into circular plasmids as foreign DNA molecules. Followed by, a series of enzymatic treatments to plasmids were performed in order to find feasible solutions to the given problem. The final optimum was obtained by applying founded feasible solutions to object function. Compared with other DNA algorithms of integer programming problem, the proposed algorithm is simple, error-resistant, above all, feasible. Our work clearly showed the distinct advantages of plasmid DNA computing model when solving integer related programming problem.

关键词： DNA computing 0-1 programming Plasmid

Probe Machine Based Computing Model for Maximum Clique Problem

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Chinese Journal of Electronics 2022年第2期31卷 304-312页

作者： CUI Jianzhong yin zhixiang TANG Zhen YANG Jing Department of Computer Huainan Union University School of Electronic and Information Engineering Anhui University of Science & Technology School of Mathematics Physics and Statistics Shanghai University of Engineering Science School of Mathematics and Big Data Anhui University of Science & Technology

Probe machine(PM) is a recently reported mathematic model with massive parallelism. Herein,we presented searching the maximum clique of an undirected graph with six vertices. We constructed data library containing n sublibraries, each sublibrary corresponded to a vertex in the given graph. Then, probe library according to the induced subgraph was designed in order to search and generate all maximal cliques. Subsequently,we performed probe operation, and all maximal cliques were generated in parallel. The advantages of the proposed model lie in two aspects. On one hand, solution to NP-complete problem is generated in just one step of probe operation rather than found in vast solution *** the other hand, the proposed model is highly *** work demonstrates that PM is superior to TM in terms of searching capacity when tackling NP-complete problem.

关键词： Probe machine NP-complete Maximum clique problem

Job shop scheduling problem based on DNA computing

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Journal of Systems Engineering and Electronics 2006年第3期17卷 654-659页

作者： yin zhixiang Cui Jianzhong Yang Yan Ma ying Dept. of Mathematics and Physics Anhui Univ. of Science and Technology Huainan 232001 P.R. China

To solve job shop scheduling problem, a new approach-DNA computing is used in solving job shop scheduling problem. The approach using DNA computing to solve job shop scheduling is divided into three stands. Finally, optimum solutions are obtained by sequencing A small job shop scheduling problem is solved in DNA computing, and the ＂operations＂ of the computation were performed with standard protocols, as ligation, synthesis, electrophoresis etc. This work represents further evidence for the ability of DNA computing to solve NP-complete search problems.

关键词： DNA computing job shop scheduling problem weighted tournament.

基于边坡稳定性的SHM开采端帮特厚煤层影响参数研究

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应用基础与工程科学学报 2015年第1期23卷 56-67页

作者：殷志祥董慧辽宁工程技术大学建工学院辽宁阜新123000

SHM(Superior Highwall Miners)端帮采煤技术主要针对露天矿坡下薄煤层开采,为了解决端帮特厚煤层开采所需提供的影响参数问题,弄清楚多层开采所引起边坡变形和应力重新分布机理,保证边坡稳定安全,应用边坡稳定理论和FLAC3D数值模拟的手... 详细信息

SHM(Superior Highwall Miners)端帮采煤技术主要针对露天矿坡下薄煤层开采,为了解决端帮特厚煤层开采所需提供的影响参数问题,弄清楚多层开采所引起边坡变形和应力重新分布机理,保证边坡稳定安全,应用边坡稳定理论和FLAC3D数值模拟的手段,以某露天矿为工程背景,计算分析了边坡角、SHM开采层数的顺序、煤柱宽高和间距等重要影响参数对边坡稳定性的作用影响.计算结果表明,开采后边坡稳定系数减小;边坡角越大,稳定系数越小;开挖层数增加,稳定系数减小;煤柱高度越高、宽度越小、间距越大,稳定系数越小.通过理论分析和数值模拟,给出了较优的具体参数值,为弄清SHM开采特厚煤层所引起露天矿边坡变形机理,防止滑坡灾害产生,确定开采流程和重要参数尺寸设定提供了依据.

关键词： SHM端帮采煤技术露天矿端帮采煤特厚煤层稳定性影响因素 FLAC3D数值模拟

Consensus Control for Networks of Agents with Fixed Topology and Quantized Communication 25th

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Consensus Control for Networks of Agents with Fixed Topology...

频率法测试网架结构杆件轴力影响因素的试验研究

第25届中国控制与决策会议

作者： Dequan Li Jinfeng Wang zhixiang yin School of Science Anhui University of Science and Technology

ISBN: (纸本)9781467355339

In this paper, without assuming balanced network topologies, we address the weighted average consensus problem for discrete-time single-integrator multi-agent systems with logarithmic quantized information communication. By incorporating the generalized quadratic Lyapunov function with the discrete-time Bellman-Gronwall inequality, a new upper bound about the quantization precision parameter of the infinite-level logarithmic quantizer is derived to design quantized protocol, under which agents in strongly connected directed networks can attain weighted average consensus. The obtained new upper bound clearly characterizes the intimate relationship between the quantization precision parameter and the directed network topology property. The proposed quantized protocol takes the joint effects of information quantization and network topology into consideration, and therefore, it is in particular applicable to digital networks where bidirectional and/or balanced message passing among agents is not available.

关键词： Consensus Double Stochasticity Logarithmic Quantization Digraph

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防灾减灾工程学报 2017年第5期37卷 809-814,854页

作者：殷志祥张晶辽宁工程技术大学建筑工程学院辽宁阜新123000 江苏中和建筑设计有限公司江苏南京210009

大跨度空间网架结构健康检测中杆件轴力无损测试方法至关重要。繁杂和不便现场实施的轴力测试已经影响到健康检测的实用性。探索频率法测试杆件轴力影响因素的变化直接关系到该方法的实用性。针对影响频率法测试空间网架结构杆件轴力的... 详细信息

大跨度空间网架结构健康检测中杆件轴力无损测试方法至关重要。繁杂和不便现场实施的轴力测试已经影响到健康检测的实用性。探索频率法测试杆件轴力影响因素的变化直接关系到该方法的实用性。针对影响频率法测试空间网架结构杆件轴力的因素研究,能使频率法测试结构杆件轴力时可综合考虑各方面因素,得到精确的数据。通过杆件模型试验分别考虑了杆件轴力、杆件长度、截面及边界条件4因素对杆件自身频率的影响,基于梁弯曲振动理论与数值计算对试验结果进行分析。结果表明,杆件长度、截面及边界条件对杆件自身频率影响较大,杆件轴力对杆件频率影响相对较小,但4个因素对杆件频率影响均呈线性变化且影响程度各不同,可以为频率法测试结构杆件频率时提供参考标准。

关键词：健康监测无损检测频率法杆件轴力边界条件

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影响大跨度PC铁路桥悬浇施工挠度因素

辽宁工程技术大学学报（自然科学版） 2015年第3期34卷 377-381页

作者：殷志祥何向之辽宁工程技术大学土木与交通学院辽宁阜新123000

大跨度预应力混凝土桥梁广泛采用悬臂法施工,悬臂法施工给桥梁结构带来不断变化的复杂应力和变形,诸多因素的变化影响着桥梁的预抛高.为研究影响施工中预应力混凝土铁路桥梁挠度的结构自重、温度、混凝土收缩徐变、预应力损失、混凝土... 详细信息

大跨度预应力混凝土桥梁广泛采用悬臂法施工,悬臂法施工给桥梁结构带来不断变化的复杂应力和变形,诸多因素的变化影响着桥梁的预抛高.为研究影响施工中预应力混凝土铁路桥梁挠度的结构自重、温度、混凝土收缩徐变、预应力损失、混凝土加载龄期等的程度,结合某大跨径桥梁实际工程,应用MIDAS/Civil软件模拟了各影响因素对桥梁的挠度影响程度,将就温度、混凝土徐变以及预应力损失对桥梁挠度的影响进行敏感性分析研究,得到了混凝土徐变、预应力损失与大跨度铁路桥梁施工挠度的关系曲线,提出了具体可控措施.

关键词：铁路桥梁挠度控制大跨度预应力桥梁挠度悬浇施工

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高阶电离层延迟对不同区域测站坐标的影响

测绘科学 2018年第4期43卷 38-42,65页

作者：殷志祥孙明博安徽大学资源与环境工程学院合肥230601 中国白城兵器试验中心吉林白城137001

针对如何有效控制、改正甚至消除不同区域与时段的电离层高阶项延迟对全球导航卫星系统定位结果产生的影响,该文选取了不同区域内有代表性的IGS基准站1999—2003年的观测数据进行解算,并详细分析了各测站坐标受高阶电离层延迟影响的规... 详细信息

针对如何有效控制、改正甚至消除不同区域与时段的电离层高阶项延迟对全球导航卫星系统定位结果产生的影响,该文选取了不同区域内有代表性的IGS基准站1999—2003年的观测数据进行解算,并详细分析了各测站坐标受高阶电离层延迟影响的规律。在此基础上,总结出测站的高阶项改正与测站区域地理位置的关系,并探究产生这种影响的原因。最后从全球的角度研究了电离层高阶项改正对基准站坐标的影响。结果表明,要获得高精度的定位结果,需要顾及高阶电离层延迟的影响,尤其是在赤道以及地球两极区域的精密定位,此外,需要顾及电离层变化活跃期的影响。

关键词：高阶电离层延迟不同区域不同时段基准站坐标