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Distributed Finite-Time Integral Sliding-Mode Control for Multi-Agent Systems with Multiple Disturbances Based on Nonlinear Disturbance Observers

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Journal of Systems Science & Complexity 2021年第3期34卷 995-1013页

作者： yang Yize LIU Fan yang hongyong LI Yuling LIU Yuanshan School of Information and Electrical Engineering Ludong UniversityYantai 264025China

This paper proposes a finite-time consensus control algorithm based on nonlinear integral sliding-mode control for second-order multi-agent systems(MASs)with mismatched and matched ***,a nonlinear finite-time disturbance observer is established to estimate the states and mismatched disturbances of the ***,a dynamic integral sliding-mode(ISM)surface is designed by employing the estimates of mismatched ***,based on the designed ISM and disturbance observer,the discontinuous or continuous campsite control protocols are respectively developed to guarantee the consensus for MASs in finite time with active anti-disturbance ***,numerical simulation results illustrate the effectiveness of the proposed consensus control algorithm.

关键词： Finite-time consensus integral sliding-mode control mismatched disturbances multiagent systems super-twisting algorithm

Stateless overlay multicast with in-packet bloom filters

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The Journal of China Universities of Posts and Telecommunications 2017年第5期24卷 44-52页

作者： Tian Shengwen Wang Jingyu yang hongyong Cui Guanghai School of Information and Electrical Engineering Ludong University State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications

Due to the difficulty of deploying Internet protocol （IP） multicast on the Internet on a large scale, overlay multicast has been considered as a promising alternative to develop the multicast communication in recent years. However, the existing overlay multicast solutions suffer from high costs to maintain the state information of nodes in the multicast forwarding tree. A stateless overlay multicast scheme is proposed, in which the multicast routing information is encoded by a bloom filter （BF） and encapsulated into the packet header without any need for maintaining the multicast forwarding tree. Our scheme leverages the node heterogeneity and proximity information in the physical topology and hierarchically constructs the transit-stub overlay topology by assigning geometric coordinates to all overlay nodes. More importantly, the scheme uses BF technology to identify the nodes and links of the multicast forwarding tree, which improves the forwarding efficiency and decreases the false-positive forwarding loop. The analytical and simulation results show that the proposal can achieve high forwarding efficiency and good scalability.

关键词： overlay multicast BF Intemet node coordinate network awareness

Compound Zhebei granules combined with chemotherapy for the treatment of refractory acute leukemia: a randomized clinical trial

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Journal of Traditional Chinese Medicine 2016年第5期36卷 606-612页

作者： Hou Li yang Shulian yang Wenhua Zhou Yuhong Liu Feng yang hongyong Sun Weizheng Li Dongyun Xu Yamei Chen Xinyi Department of Oncology and Hematology Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine Department of Hematology Langfang Chinese Medicine Hospital Affiliated to Hebei Medical University Department of Hematology First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine Department of Hematology Chinese Medicine Hospital of Zhejiang Province Department of Hematology Xiyuan Hospital Affiliated to China Academy of Chinese Medical Sciences Department of Hematology First Affiliated Hospital of Guangzhou University of Chinese Medicine Department of Hematology First Affiliated Hospital of Heilongjiang University of Chinese Medicine

OBJECTIVE: To observe the effect of compound Zhebei granules(CZBG) with chemotherapy in the treatment of refractory acute ***: In this multicenter, double-blind, placebo-controlled clinical trial, we used a central(online) randomization system to assign 235 patients to two treatment groups. A total of 118 patients received chemotherapy combined with CZBG(4 g,twice daily) and 117 patients received chemotherapy plus placebo. The clinical efficacy was evaluated at the end of one chemotherapeutic ***: In the full analysis set, in which deaths due to disease progression were regarded as inefficacy, the rates of complete remission(CR) and partial remission(CR + PR) were 32.35% and 50.00%,respectively, for the chemotherapy combined with CZBG group, and 23.08% and 35.58%, respectively,for the chemotherapy plus placebo group. There was a statistically significant difference between the two groups according to a ysis set(PPχ2test(P < 0.05). In the per protocol analS), the CR(33.67%),CR+PR(52.04%) response rates for the chemotherapy plus CZBG group were significantly different from the response rates of the control group(CR:24.24% and CR+PR: 37.37%), respectively(P < 0.05).CONCLUSION: CZBG plus chemotherapy can improve the clinical remission rate of refractory acute leukemia after one just one therapeutic cycle.

关键词： Refractory acute leukemia Zhebei granules Chemotherapy remission rate Randomized clinical trial

Effect of a Carbon Fibre-steel Fibre-graphite Conductive Filler on the Electrothermal Properties of Cementitious Materials

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 141-151页

作者： FAN Yanan WEI Hong ZHENG hongyong DU Hongxiu Department of Architecture and Environmental Engineering Taiyuan UniversityTaiyuan 030032China College of Civil Engineering Taiyuan University of TechnologyTaiyuan 030032China

Carbon fibre,steel fibre and graphite were used as conductive fillers to prepare cementitious materials with excellent electrothermal *** electrically conductive cementitious materials with different volume dosages were analysed through compressive and flexural strength,electrochemical impedance spectroscopy and temperature rise *** equivalent circuit model was established to study the electrically conductive heat generation mechanism in the electrically conductive cementitious *** results indicate that the mechanical properties of cementitious composite materials with a ternary conductive phase are better than those of pristine cementitious materials because the fibrous filler improves their mechanical ***,the incorporation of graphite in the material reduces its *** fibrous and point-like conductive phase materials into the cementitious material enhances the overall conductive pathway and considerably reduces the electrical resistance of the cementitious material,enhancing its conductive *** volume ratios of carbon fibre,steel fibre and graphite that achieve an optimal complex doping in the cementitious material were 0.35%,0.6%and 6%,*** was determined using the mutation point of each circuit element parameter as the percolation *** addition,at a certain safety voltage,there is a uniform change between the internal and surface temperatures of the conductive cementitious material,and the heating effect in this materialis is considerably better than that in the pristine cementitious material.

关键词： cementitious composites conductive fillers electrothermal properties electrochemical impedance spectroscopy

具有干扰的多自主体系统的群集运动与速度同步

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复杂系统与复杂性科学 2015年第1期12卷 85-91页

作者：褚福芳杨洪勇鲁东大学信息与电气工程学院山东烟台264025

针对具有干扰的二阶多自主体系统,提出了一种应用个体局部信息的分布式控制协议,给出了具有领航者的自主群体在受到外界干扰时取得群集运动与速度同步的充分条件。首先,对自主体设计一个干扰观测器。然后,基于观测器设计分布式控制协议... 详细信息

针对具有干扰的二阶多自主体系统,提出了一种应用个体局部信息的分布式控制协议,给出了具有领航者的自主群体在受到外界干扰时取得群集运动与速度同步的充分条件。首先,对自主体设计一个干扰观测器。然后,基于观测器设计分布式控制协议,保证了具有领航者的自主群体能够取得群集运动与速度同步。最后通过例子进行仿真,结果表明结论的有效性。

关键词：分布式控制群集运动速度同步干扰观测器

一种高聚类幂律可调网络异质配置模式下的公共品博弈研究

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复杂系统与复杂性科学 2017年第2期14卷 52-58页

作者：苗萍杨洪勇鲁东大学信息与电气工程学院山东烟台264025

为了研究网络结构与演化博弈之间的关系,提出了一种基于网络内部"三角结构"与"内部演化"演化机制的高聚类幂律可调的网络模型。该网络模型具有无标度网络幂律分布的特性,且具有更高的聚类系数。在该网络模型的基础上,研究了异质配置模... 详细信息

为了研究网络结构与演化博弈之间的关系,提出了一种基于网络内部"三角结构"与"内部演化"演化机制的高聚类幂律可调的网络模型。该网络模型具有无标度网络幂律分布的特性,且具有更高的聚类系数。在该网络模型的基础上,研究了异质配置模式的公共品博弈,即根据网络中的节点与其一层邻居和二层邻居中合作者数目的多少来决定公共品博弈中合作者的投入差异,并通过一个调节因子来调节投入差异的异质性程度。最后仿真证明,该异质配置模式演化博弈模型在高聚类幂律可调网络模型上可以快速达到纳什均衡,且存在一个调节因子的最佳范围能够促进合作的涌现。

关键词：高聚类系数幂律可调异质配置演化博弈

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具有领航者的时延多智能体系统的群集运动

计算机研究与发展 2011年第2期48卷 203-208页

作者：杨洪勇曹科才张嗣瀛鲁东大学信息科学与工程学院山东烟台264025 南京邮电大学自动化学院南京210046 青岛大学复杂性科学研究所山东青岛266071

计算机技术、网络技术和通信技术的飞速发展,推动着无人驾驶飞行器的编队控制、传感器网络的分布控制、卫星的姿态控制等多智能体系统的建模与应用的逐步深入,也吸引了越来越多的研究者致力于多智能体系统的动态编队控制的研究.研究了... 详细信息

计算机技术、网络技术和通信技术的飞速发展,推动着无人驾驶飞行器的编队控制、传感器网络的分布控制、卫星的姿态控制等多智能体系统的建模与应用的逐步深入,也吸引了越来越多的研究者致力于多智能体系统的动态编队控制的研究.研究了具有不同的通信时延和不同的输入时延的移动多智能体算法的群集运动.假设多智能体系统由n个智能体和1个Leader组成,网络连接拓扑是静态有向连通图,智能体Leader为拓扑图的全局可达节点.应用频率域的广义Nyquist判据分析了具有不同的通信时延和不同的输入时延的移动多智能体算法,应用Greshgorin圆盘定理和曲线的曲率理论研究了具有领航者的多智能体算法的群集运动,得到保证系统一致性的收敛条件.该一致性条件是一个应用节点局部信息的分散式条件,只与输入时延有关,而与通信时延无关.最后,通过计算机仿真验证了本文结论的有效性.

关键词：多智能体系统不同时延群集分散式一致性条件

联合连通拓扑下的二阶多自主体系统有限时间包容控制

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智能系统学报 2017年第2期12卷 188-195页

作者：庄昊杨洪勇鲁东大学信息与电气工程学院山东烟台264025

针对具有多领航者的二阶网络化系统群集运动问题,提出了一种有限时间收敛的包容控制算法。在此基础上,运用现代控制理论、代数图论和矩阵论等分析工具对所提出的控制算法进行理论分析,得到了当通信拓扑为动态联合连通时,二阶网络化系统... 详细信息

针对具有多领航者的二阶网络化系统群集运动问题,提出了一种有限时间收敛的包容控制算法。在此基础上,运用现代控制理论、代数图论和矩阵论等分析工具对所提出的控制算法进行理论分析,得到了当通信拓扑为动态联合连通时,二阶网络化系统在有限时间内实现群集运动的收敛条件。通过此包容控制算法,使得系统在静态拓扑和联合连通条件下均在有限时间内收敛到目标区域内。最后,应用系统仿真验证了所得结论的正确性。

关键词：多领航者群集运动有限时间联合连通包容控制

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网络化分布式协作系统的最大同步

复杂系统与复杂性科学 2016年第4期13卷 62-67页

作者：王付永杨洪勇鲁东大学信息与电气工程学院山东烟台264025

基于网络化系统的拓扑结构特性,研究了分布式系统的最大同步问题。提出了一种应用个体局部信息的线性分布式控制协议。运用现代控制理论、代数图论和SIA等理论工具,对控制算法进行了稳定性分析,得到了网络化系统的最大同步收敛条件。最... 详细信息

基于网络化系统的拓扑结构特性,研究了分布式系统的最大同步问题。提出了一种应用个体局部信息的线性分布式控制协议。运用现代控制理论、代数图论和SIA等理论工具,对控制算法进行了稳定性分析,得到了网络化系统的最大同步收敛条件。最后应用仿真实验验证了所得结论的正确性。

关键词：网络化系统最大同步分布式控制有向图联合连通