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Complex Dynamical Behaviors in a Dual Channel Supply Chain Model with Retailer's Service Input

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Journal of Systems Science & Complexity 2023年第3期36卷 1144-1168页

作者： zhang yapeng ZHOU Wei School of Mathematics and Physics Lanzhou Jiaotong UniversityLanzhou 730070China School of Traffic and Transportation Lanzhou Jiaotong UniversityLanzhou 730070China Key Laboratory of Railway Industry of Plateau Railway Transportation Intelligent Management and Control Lanzhou 730070China

Based on bounded rationality,this paper established a price game model of dual channel supply chain composed of manufacturers and *** to the eigenvalue of Jacobi matrix and Jury criterion,the stability of the equilibrium point is analyzed,and then the dynamic evolution process under the parameters of price adjustment speed and retailer's service input is studied through stability region,bifurcation diagram,maximum Lyapunov exponent diagram and attraction *** results show that the system enters chaos through flip and Neimark-Sacker bifurcation,and increase of price adjustment speed and service input value will make the system produce more dynamic *** addition,it can be found that the impact of service input value on itself is much greater than that on ***,when adjustment speed is selected as bifurcation parameter,the change curve of sales price is inconsistent,in which the change of retailers mainly remains in periodic state,while manufacturers will gradually enter ***,studies the evolution of attraction basin in which three kinds of attractors *** particular,coexistence of boundary attractors and internal attractors increases the complexity of ***,enterprises need to carefully adjust parameters of the game model to control the stability of system and maintain the long-term stability of market competition.

关键词： Bifurcation analysis boundary equilibrium coexistence of attractors flip bifurcation global bifurcation

间断焊接包管加固圆钢管构件轴压极限承载力研究

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建筑钢结构进展 2024年第6期26卷 84-93页

作者：孟文清严珮珮崔邯龙张亚鹏张陆旭王超河北工程大学土木工程学院河北邯郸056038 河北省结构工程装配式技术研究中心河北邯郸056038

为研究间断焊接包管加固杆件的轴心受压性能,设计了13组试件进行单调加载静力试验。对试件极限承载力、破坏模式、荷载-位移曲线和截面应变发展规律进行分析,对比了负载加固与非负载加固对试件极限承载力的影响。结果表明:包管构件的破... 详细信息

为研究间断焊接包管加固杆件的轴心受压性能,设计了13组试件进行单调加载静力试验。对试件极限承载力、破坏模式、荷载-位移曲线和截面应变发展规律进行分析,对比了负载加固与非负载加固对试件极限承载力的影响。结果表明:包管构件的破坏模式可分为整体失稳破坏和内管外伸段强度破坏;包管构件内外管协同工作、共同受力,内管和外管都在屈服后发生整体失稳破坏;负载加固与非负载加固试件的极限承载力基本一致,相差2.2%,非负载加固试件与未加固试件相比,极限承载力最大提高了479.9%。根据试验结果对包管构件的ABAQUS有限元模型进行修正,并用该模型分析了各主要影响因素对包管构件极限承载力的影响规律。提出了包管构件极限承载力经验计算公式,且公式计算结果与试验结果吻合较好。

关键词：间断焊接包管加固极限承载力轴压破坏模式计算公式

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输水管道沉管施工技术

水利水电施工 2024年第2期 29-33页

作者：张亚鹏王飞腾中国水利水电第十二工程局有限公司

随着社会的发展和城市化的进展,城市和部分地区需水量随之增加。为保证需水量,从水库或江河引水并用管道输送的输水工程也逐渐增多。输水工程线路一般线长面广。百色水库灌区工程输水管道涉及百色市右江区、田阳县、田东县等三县(区),... 详细信息

随着社会的发展和城市化的进展,城市和部分地区需水量随之增加。为保证需水量,从水库或江河引水并用管道输送的输水工程也逐渐增多。输水工程线路一般线长面广。百色水库灌区工程输水管道涉及百色市右江区、田阳县、田东县等三县(区),全线距离较长且地形复杂,其跨河水下管道,采用沉管法施工。本文阐述了管道沉管施工方法,介绍了沉管施工的技术要点。

关键词：输水管道沉管施工技术百色水库灌区

地理信息技术赋能流域环境检察监督的路径与实践研究

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地理空间信息 2024年第7期22卷 114-118页

作者：鄢斌王喆曈张亚鹏华中科技大学法学院湖北武汉430074 湖北喻家律师事务所湖北武汉430073 湖北省人民检察院湖北武汉430070

近年来,湖北省各检察机关在应用地理信息技术赋能自身履职方面取得了诸多成效。相关技术不仅改善了检察监督的工作效率,提高了办案人员的调查取证能力,还推动了法律监督窗口的适当前移,有利于流域治理主体间的协同配合。理论上,地理信... 详细信息

近年来,湖北省各检察机关在应用地理信息技术赋能自身履职方面取得了诸多成效。相关技术不仅改善了检察监督的工作效率,提高了办案人员的调查取证能力,还推动了法律监督窗口的适当前移,有利于流域治理主体间的协同配合。理论上,地理信息技术赋能流域环境检察监督的主要路径可概括为数据收集共享、算法自动分析、人工核查研判、模型优化更新4个步骤。实践中,当前流域检察监督对地理信息技术的应用尚处于初级阶段,因此检察机关今后可考虑在参与地方时空数据平台建设、健全外聘技术专家库等方面发力,不断提升自身数字化水平。

关键词：数字检察地理信息技术应用流域治理法律监督

Enhanced Harris Hawks Optimization Integrated with Coot Bird Optimization for Solving Continuous Numerical Optimization Problems

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Computer Modeling in Engineering & Sciences 2023年第11期137卷 1635-1675页

作者： Hao Cui Yanling Guo Yaning Xiao Yangwei Wang Jian Li yapeng zhang Haoyu zhang College of Mechanical and Electrical Engineering Northeast Forestry UniversityHarbin150040China

Harris Hawks Optimization(HHO)is a novel meta-heuristic algorithm that imitates the predation characteristics of Harris Hawk and combines Lévy flight to solve complex multidimensional ***,the basic HHO algorithm still has certain limitations,including the tendency to fall into the local optima and poor convergence *** Bird Optimization(CBO)is another new swarm-based optimization *** originates from the regular and irregular motion of a bird called Coot on the water’s *** the framework of CBO is slightly complicated,it has outstanding exploration potential and excellent capability to avoid falling into local optimal *** paper proposes a novel enhanced hybrid algorithm based on the basic HHO and CBO named Enhanced Harris Hawks Optimization Integrated with Coot Bird Optimization(EHHOCBO).EHHOCBO can provide higher-quality solutions for numerical optimization *** first embeds the leadership mechanism of CBO into the population initialization process of *** way can take full advantage of the valuable solution information to provide a good foundation for the global search of the hybrid ***,the Ensemble Mutation Strategy(EMS)is introduced to generate the mutant candidate positions for consideration,further improving the hybrid algorithm’s exploration trend and population *** further reduce the likelihood of falling into the local optima and speed up the convergence,Refracted Opposition-Based Learning(ROBL)is adopted to update the current optimal solution in the *** 23 classical benchmark functions and the IEEE CEC2017 test suite,the performance of the proposed EHHOCBO is comprehensively evaluated and compared with eight other basic meta-heuristic algorithms and six improved *** results show that EHHOCBO can achieve better solution accuracy,faster convergence speed,and a more robust ability to jump out of local optima than other advanced optimizers in

关键词： Harris hawks optimization coot bird optimization hybrid ensemblemutation strategy refracted opposition-based learning

Principle, traits and functions of electrochemical fingerprint of Chinese traditional medicine

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Chinese Science Bulletin 2007年第20期52卷 2753-2765页

作者： zhang TaiMing LIANG YiZeng YUAN Bin DING Feng zhang yapeng CHEN WenYan Research Center for Modernization of Chinese Herbal Medicine College of Chemistry and Chemical Engineering Central SouthUniversity Changsha 410083 China

In regard to such challenging analysis problems as scientific identification and quality evaluation of Chinese traditional medicine, the electrochemical fingerprint technique of Chinese traditional medi- cine has been researched. The principle, traits, functions, etc., of the electrochemical fingerprint have detailedly been analyzed and discussed by the B-Z oscillatory system using malonic acid as main dissipation substance, characterized by the fact that different influences of different Chinese traditional medicines on the mechanism of the oscillatory reaction cause different changes of the shape of the potential-time curve of the oscillatory system under the conditions of constant tem- perature and pressure. An economical, simple and convenient, easy pushing and effective scientific method for distinguishing and evaluating multifarious Chinese traditional medicines has success- fully been put forward.

关键词：中医电化学检测方法药物分析中药

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转体支座研究现状及测力支座应用评述

市政技术 2024年第3期42卷 35-42页

作者：张亚鹏李方林丁建刚张华邢江甘肃公航旅天庄高速公路管理有限公司甘肃天水741000 中铁七局第三工程有限公司陕西西安710032 长安大学公路学院陕西西安710064

通过对常规转体系统技术进行分析,总结了传统转体支座在结构形式、材料、应力状态、称重试验等方面的研究现状。针对常规转体系统功能单一的局限性,基于某跨陇海铁路特大桥等项目,介绍了一种新型的智能测力转体支座。该新型智能测力转... 详细信息

通过对常规转体系统技术进行分析,总结了传统转体支座在结构形式、材料、应力状态、称重试验等方面的研究现状。针对常规转体系统功能单一的局限性,基于某跨陇海铁路特大桥等项目,介绍了一种新型的智能测力转体支座。该新型智能测力转体支座将应力传感器等设备集成到常规转体支座中,具有实时监测支座内部应力状态、数据远程传输和应力异常报警等功能。目前,该新型智能测力转体支座仍存在一定局限性,包括功能整合程度低、无法监测撑脚位置的应力状态等。该研究成果为今后转体桥梁的进一步发展提供了新的思路,对测力支座的深入研究也具有一定的参考和借鉴意义。

关键词：转铰转体系统测力支座转体桥梁研究现状应用

An Improved Gorilla Troops Optimizer Based on Lens Opposition-Based Learning and Adaptive β-Hill Climbing for Global Optimization

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Computer Modeling in Engineering & Sciences 2022年第5期131卷 815-850页

作者： Yaning Xiao Xue Sun Yanling Guo Sanping Li yapeng zhang Yangwei Wang College of Mechanical and Electrical Engineering Northeast Forestry UniversityHarbin150040China

Gorilla troops optimizer(GTO)is a newly developed meta-heuristic algorithm,which is inspired by the collective lifestyle and social intelligence of *** to othermetaheuristics,the convergence accuracy and stability of GTOwill deterioratewhen the optimization problems to be solved becomemore complex and *** overcome these defects and achieve better performance,this paper proposes an improved gorilla troops optimizer(IGTO).First,Circle chaotic mapping is introduced to initialize the positions of gorillas,which facilitates the population diversity and establishes a good foundation for global ***,in order to avoid getting trapped in the local optimum,the lens opposition-based learning mechanism is adopted to expand the search ***,a novel local search-based algorithm,namely adaptiveβ-hill climbing,is amalgamated with GTO to increase the final solution *** to three improvements,the exploration and exploitation capabilities of the basic GTOare greatly *** performance of the proposed algorithm is comprehensively evaluated and analyzed on 19 classical benchmark *** numerical and statistical results demonstrate that IGTO can provide better solution quality,local optimumavoidance,and robustness compared with the basic GTOand five other wellknown ***,the applicability of IGTOis further proved through resolving four engineering design problems and training multilayer *** experimental results suggest that IGTO exhibits remarkable competitive performance and promising prospects in real-world tasks.

关键词： Gorilla troops optimizer circle chaotic mapping lens opposition-based learning adaptiveβ-hill climbing

木香烃内酯通过调控circ_0000285/miR-409-3p影响胃癌细胞恶性表型

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肿瘤药学 2024年第2期14卷 193-202页

作者：刘昭郑志超张亚鹏任玉川阳泉市第一人民医院肿瘤内科山西阳泉045001 辽宁省肿瘤医院胃外科辽宁沈阳110042

目的探讨木香烃内酯对胃癌细胞恶性表型的影响及可能机制。方法体外培养胃癌细胞HGC-27,采用不同剂量(2.5、10、40μmol·L^(-1))木香烃内酯干预HGC-27细胞24 h,或转染circ_0000285小干扰RNA至HGC-27细胞后培养24 h。采用40μmol·L^(-1... 详细信息

目的探讨木香烃内酯对胃癌细胞恶性表型的影响及可能机制。方法体外培养胃癌细胞HGC-27,采用不同剂量(2.5、10、40μmol·L^(-1))木香烃内酯干预HGC-27细胞24 h,或转染circ_0000285小干扰RNA至HGC-27细胞后培养24 h。采用40μmol·L^(-1)木香烃内酯干预转染circ_0000285过表达载体的HGC-27细胞24 h。CCK-8法和克隆形成实验检测细胞增殖,流式细胞仪检测细胞凋亡,划痕实验和Transwell检测细胞迁移和侵袭,Western blotting检测细胞中Bcl-2、Bax、E-cadherin和N-cadherin蛋白表达,RT-qPCR检测circ_0000285和miR-409-3p表达,双荧光素酶报告基因实验验证circ_0000285和miR-409-3p的调控关系。结果木香烃内酯可降低HGC-27细胞的OD值、集落形成数、迁移距离、侵袭数,以及Bcl-2、N-cadherin蛋白表达水平,提高细胞凋亡率及Bax、E-cadherin蛋白表达水平,并呈剂量依赖性。木香烃内酯可抑制HGC-27细胞中circ_0000285的表达,促进miR-409-3p表达。干扰circ_0000285表达可降低HGC-27细胞的增殖、迁移能力,并促进细胞凋亡。circ_0000285可靶向结合并负调控miR-409-3p。过表达circ_0000285可逆转木香烃内酯对HGC-27细胞恶性表型的影响。结论木香烃内酯可能通过调控circ_0000285/miR-409-3p轴抑制胃癌细胞的恶性生物学行为。

关键词：木香烃内酯胃癌 circ_0000285 miR-409-3p 细胞增殖迁移侵袭凋亡