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Finite-Time Synchronization for Heterogeneous Complex Networks with Time-Varying Delays

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Applied mathematics 2020年第10期11卷 1000-1012页

作者： yicong ma Yali Tai School of Science Jimei University Xiamen China Chengyi University College Jimei University Xiamen China

This paper studies the problem of finite-time synchronization for a class of heterogeneous complex networks which not only have node time-varying delays and coupled time-varying delays but also contain uncertain disturbance. An appropriate controller is designed such that this type of network can be synchronized within a finite time. By constructing a proper Lyapunov function and using the finite-time stability theory, the sufficient conditions for the network to achieve finite-time synchronization are given and the finite time is estimated. Finally, the conclusions obtained are extended to the case of homogeneous complex networks with time-varying delays and uncertain disturbance.

关键词： Finite-Time Synchronization Heterogeneous Time-Varying Delays Uncertain Disturbance

Mechanisms of imperatorin on regulating Pglycoprotein in blood-brain barrier based on network pharmacology and in vitro experiment

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中国药理学与毒理学杂志 2023年第S1期37卷 17-18页

作者： SONG Yizhen YIN Wanxin ma yicong AN Yufan HUANG Jiaqi YAN Zhongjie WU Xiuwen WANG Yuanyu School of Pharmaceutical Sciences Hebei Medical UniversityShijiazhuang 050017China Department of Neurosurgery the Second Hospital of Hebei Medical UniversityShijiazhuang 050000China

OBJECTIVE To explore mecha⁃nisms of imperatorin on regulating P-glycoprotein(P-gp)in blood-brain barrier(BBB)based on net⁃work pharmacology combined with in vitro experi⁃*** Drug targets were predicted using the Pharmapper and Swiss targets data⁃bases;disease targets were obtained through the Genecards database;intersections between drugs and disease targets were screened by Cytoscape software;the obtained core targets were used to construct protein-protein interaction(PPI)network,gene ontology(GO)functions,and Kyoto encyclopedia of genes and genomes(KEGG)pathway enrichment *** effects of imperatorin(20,50,100μmol·L^(-1))on P-gp activity were monitored in hCMEC/D3 in vitro BBB model,and the effects of imperatorin on the expression of target proteins were verified using Western blot *** 55 drug targets and 3102 disease targets were obtained from the network pharmacology screening,and 37 core targets were obtained after the *** analysis showed that core targets were closely related to chemical synaptic trans⁃mission regulation,neurotransmitter receptor activity,protein kinase regulation activity,G proteincoupled receptor signaling pathway,neural active ligand receptor interaction pathway,PI3K-Akt sig⁃naling pathway,VEGF signaling pathway,etc..In vitro experimental validation suggested that all tested concentration groups of imperatorin signifi⁃cantly reduced the activity and expression of P-gp,which were achieved by significantly downregu⁃lating the phosphorylation levels of PI3K and Akt,and repressing the expression of VEGFR2 pro⁃*** Network pharmacology was used to predict the core targets and signaling pathways of imperatorin on regulating P-gp in BBB and relevant validation was conducted through in vitro experiments,providing a refer⁃ence basis for further exploration of the mecha⁃nisms of imperatorin on regulating P-gp in BBB.

关键词： imperatorin blood-brain barrier P-glycoprotein network pharmacology in vitro experiment

Expansion and improvement of ChinaMu by MuT-seq and chromosome-level assembly of the Mu-starter genome

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Journal of Integrative Plant Biology 2024年第4期66卷 645-659页

作者： Lei Liang Yuancong Wang Yanbin Han yicong Chen Mengfei Li Yibo Wu Zeyang ma Han Zhao Rentao Song State Key Laboratory of maize Bio-breeding Frontiers Science Center for Molecular Design BreedingJoint International Research Laboratory of Crop Molecular BreedingNational Maize Improvement CenterCollege of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100091China Institute of Crop Germplasm and Biotechnology Jiangsu Provincial Key Laboratory of AgrobiologyJiangsu Academy of Agricultural SciencesNanjing 210014China Sanya Institute of China Agricultural University Sanya 572025China Hainan Yazhou Bay Seed Laboratory Sanya 572025China

ChinaMu is the largest sequence-indexed Mutator(Mu)transposon insertional library in maize(Zea mays).In this study,we made significant improvements to the size and quality of the ChinaMu *** developed a new Mu-tag isolation method Mu-Tn5-seq(MuT-seq).Compared to the previous method used by ChinaMu,MuT-seq recovered 1/3 more germinal insertions,while requiring only about 1/14 of the sequencing volume and 1/5 of the experimental *** MuT-seq,we identified 113,879 germinal insertions from 3,168 Mu-active F1 *** also assembled a high-quality genome for the Mu-active line Mu-starter,which harbors the initial active MuDR element and was used as the pollen donor for the mutation *** the Mu-starter genome,we recovered 33,662(15.6%)additional germinal insertions in 3,244(7.4%)genes in the Mu-starter *** Mu-starter genome also improved the assignment of 117,689(54.5%)germinal *** newly upgraded ChinaMu dataset currently contains 215,889 high-quality germinal *** insertions cover 32,224 pan-genes in the Mu-starter and B73Ref5 genomes,including 23,006(80.4%)core genes shared by the two *** a test model,we investigated Mu insertions in the pentatricopeptide repeat(PPR)superfamily,discovering insertions for 92%(449/487)of PPR genes in ChinaMu,demonstrating the usefulness of ChinaMu as a functional genomics resource for maize.

关键词： ChinaMu Mutator MuT-seq PPR gene Zea mays

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基于自适应牵制控制的时变时滞复杂网络同步

盐城工学院学报（自然科学版） 2020年第4期33卷 30-35页

作者：马益聪邰亚丽集美大学理学院福建厦门361021 集美大学诚毅学院福建厦门361021

针对一类节点含时变时滞的复杂网络模型的同步问题,提出一种简单有效的自适应牵制控制方法。设计了一个自适应控制器,对复杂网络的部分节点实施牵制控制;构造适当的Lyapunov函数,给出网络和其孤立节点达到全局指数渐近同步的充分条件;... 详细信息

针对一类节点含时变时滞的复杂网络模型的同步问题,提出一种简单有效的自适应牵制控制方法。设计了一个自适应控制器,对复杂网络的部分节点实施牵制控制;构造适当的Lyapunov函数,给出网络和其孤立节点达到全局指数渐近同步的充分条件;最后通过数值仿真实验验证了文中方法的有效性。

关键词：时变时滞自适应牵制控制全局指数渐近同步

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面向云计算环境的CFD数据可视化分析服务

电子技术应用 2023年第3期49卷 118-123页

作者：牟泓宇马轶聪淮晓永华北计算机系统工程研究所北京100083

针对目前CFD(Computational Fluid Dynamics)软件数据可视化分析所需计算量大且操作不灵活的问题,面向CFD数据可视化分析需求,实现了一个CFD数据可视化分析服务原型软件。在该原型软件中,研究了自适应客户端的服务自适应QoS(Quality of ... 详细信息

针对目前CFD(Computational Fluid Dynamics)软件数据可视化分析所需计算量大且操作不灵活的问题,面向CFD数据可视化分析需求,实现了一个CFD数据可视化分析服务原型软件。在该原型软件中,研究了自适应客户端的服务自适应QoS(Quality of Service)优化技术,降低不同客户端计算环境对服务质量的影响;研究设计了基于消息中间件的服务集成接口,提高了服务使用的灵活性。面向云计算环境的CFD数据可视化分析服务发挥了云端服务器的性能优势,应用了“云+端”的开发新模式,具备灵活性和可扩展性。

关键词：可视化分析云平台服务架构消息中间件

基于服务架构的OpenFOAM求解客户端设计

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电子技术应用 2023年第3期49卷 124-129页

作者：马轶聪牟泓宇淮晓永华北计算机系统工程研究所北京100083

针对OpenFOAM解算软件缺乏GUI功能用户交互体验性差问题,研究设计了一个OpenFOAM求解客户端软件。设计了基于服务的“云+端”计算架构,设计开发了一个OpenFOAM求解器服务,GUI客户端远程调用访问求解器服务,并集成可视化服务实现了数据... 详细信息

针对OpenFOAM解算软件缺乏GUI功能用户交互体验性差问题,研究设计了一个OpenFOAM求解客户端软件。设计了基于服务的“云+端”计算架构,设计开发了一个OpenFOAM求解器服务,GUI客户端远程调用访问求解器服务,并集成可视化服务实现了数据可视化分析功能,实现了云端协同的求解计算功能;研究设计了基于界面模板的动态GUI界面生成方法,实现了客户端软件界面用户自定义配置功能。该软件支持基于服务的功能扩展集成,支持用户界面自定义、求解器用户设置界面自定义功能,用户界面友好,可扩展性强。通过实际的算例进行解算,验证表明了客户端软件能够通过远程调用云端求解服务、可视化服务实现完整的求解计算流程。

关键词：流场解算服务架构 OpenFOAM GUI

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先天性全白甲症一家系报告

中华皮肤科杂志 1992年第6期25卷 418-418页

作者：马逸聪郑耀和汕头大学医学院附属第一医院皮肤科

先征者男,23岁,本院口腔科见习生。出生就发现全部指(趾)甲均为白色,无自觉不适。一向健康,极少用药。无外伤史,双亲非近亲结婚。体检:各系统检查未发现异常。皮肤科检查:20

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预制装配部分包覆高强型钢-超高性能混凝土组合梁受弯承载力试验研究

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建筑结构学报 2024年第2期45卷 95-106页

作者：郝宁杨勇薛亦聪冯世强于云龙马慕达曹燕妮西安建筑科技大学土木工程学院陕西西安710055 西安建筑科技大学结构工程与抗震教育部重点实验室陕西西安710055

为了降低大跨度和重载结构的质量及工程造价,提出一种差异化使用超高性能混凝土(UHPC)和普通混凝土并结合使用高强型钢的钢-混凝土组合梁,即预制装配部分包覆高强型钢-超高性能混凝土组合梁(PPECB)。设计5根配置蜂窝型钢的预制装配部分... 详细信息

为了降低大跨度和重载结构的质量及工程造价,提出一种差异化使用超高性能混凝土(UHPC)和普通混凝土并结合使用高强型钢的钢-混凝土组合梁,即预制装配部分包覆高强型钢-超高性能混凝土组合梁(PPECB)。设计5根配置蜂窝型钢的预制装配部分包覆高强型钢-超高性能混凝土组合梁(PPECCB)和2根配置实腹型钢预制装配部分包覆高强型钢-超高性能混凝土组合梁(PPESCB),并进行受弯性能静力试验,对其破坏模式、应变发展和受弯承载力进行分析,研究高强型钢翼缘厚度、高强型钢腹板形式、箍筋形式、混凝土翼缘叠合板形式对其受弯承载力的影响。研究结果表明:PPECB破坏模式包括叠合面的黏结破坏和典型的弯曲破坏,发生弯曲破坏的组合梁表现出更良好的延性和整体工作性能;当高强型钢翼缘厚度从6 mm增加到10 mm和14 mm时,PPECB的受弯承载力分别提高23.6%和25.8%;相较于PPECCB,PPESCB的受弯承载力和刚度均有显著提高;配箍形式对PPESCB开裂荷载无明显影响,但采用C形箍筋的PPESCB,其屈服荷载和峰值荷载均高于闭合箍筋PPESCB的;带键槽叠合板PPECCB的受弯承载力优于钢筋桁架叠合板PPECCB的。提出了PPECB的受弯承载力计算式,其计算结果与试验结果吻合良好。

关键词：高强型钢-超高性能混凝土组合梁部分包覆预制装配静力试验受弯性能

Adaptive broadband beamformer for nonuniform linear array based on second order cone programming

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Journal of Systems Engineering and Electronics 2009年第2期20卷 278-282页

作者： Chen Peng Hou Chaohuan ma Xiaochuan Cao Zhiqian Liang yicong Yan Sheng Inst.of Acoustics Chinese Academy of Sciences Beijing 100080 P. R. China Xi'an Inst.of Electromechanical Information Technology Xi'an 710065 P. R. China

Adaptive broadband beamforraing is a key issue in array applications. The adaptive broadband beamformer with tapped delay line （TDL） structure for nonuniform linear array （NLA） is designed according to the rule of minimizing the beamformer＇s output power while keeping the distortionless response （DR） in the direction of desired signal and keeping the constant beamwidth （CB） with the prescribed sidelobe level over the whole operating band. This kind of beamforming problem can be solved with the interior-point method after being converted to the form of standard second order cone programming （SOCP）. The computer simulations are presented which illustrate the effectiveness of our beamformer.

关键词： information processing technique adaptive broadband beamformer tapped delay line nonuniformlinear array constant beamwidth second order cone programming