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论习近平大历史观的核心要义与时代价值

南京航空航天大学学报(社会科学版) 2025年第1期27卷 1-10页

作者：熊峰江苏省习近平新时代中国特色社会主义思想研究中心南京航空航天大学基地

随着中国特色社会主义不断取得伟大成就,中华民族迎来伟大复兴光明前景,同时也面临着一系列困难挑战。对此,习近平总书记在推动马克思主义历史观中国化时代化的基础上,创造性地提出大历史观,为我们观察、把握和引领时代,解答中国之问和... 详细信息

随着中国特色社会主义不断取得伟大成就,中华民族迎来伟大复兴光明前景,同时也面临着一系列困难挑战。对此,习近平总书记在推动马克思主义历史观中国化时代化的基础上,创造性地提出大历史观,为我们观察、把握和引领时代,解答中国之问和时代之问提供了新的思想指引。习近平大历史观是对马克思主义历史观的继承、创新和发展,其核心要义主要体现在立足“以史为鉴”,强调坚定历史自信、增强历史主动、反对历史虚无主义;立足“现实的人”,强调人民是历史的创造者、坚持以人民为中心和人民至上;立足人类社会发展大趋势,强调坚持和发展中国特色社会主义、走中国式现代化道路;立足人类命运和世界前途,强调推动构建人类命运共同体、弘扬全人类共同价值。习近平大历史观是我们认识世界和改造世界的科学世界观和方法论,为加强党的建设与自我革命,推进与拓展中国式现代化,引领塑造人类文明新形态提供了强大思想武器。

关键词：大历史观唯物史观人类命运共同体人类文明新形态

螺栓连接装配式墙板结构连接节点本构模型及体系建模方法

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工程科学与技术 2025年第1期57卷 145-156页

作者：熊峰吴朝安冉明明钟亚超王宇豪四川大学深地科学与工程教育部重点实验室四川成都610065 四川大学破坏力学与工程防灾减灾四川省重点实验室四川成都610065 四川大学建筑与环境学院四川成都610065

螺栓连接装配式墙板结构体系具有建造快速、施工便捷、连接可靠、可拆卸和可修复等优势,适合低多层乡村住宅建筑,近年来工程应用逐渐增多。该体系预制墙板之间采用离散的干式螺栓连接,受力时接缝处产生滑移变形,与传统的现浇剪力墙结构... 详细信息

螺栓连接装配式墙板结构体系具有建造快速、施工便捷、连接可靠、可拆卸和可修复等优势,适合低多层乡村住宅建筑,近年来工程应用逐渐增多。该体系预制墙板之间采用离散的干式螺栓连接,受力时接缝处产生滑移变形,与传统的现浇剪力墙结构或湿法连接的剪力墙结构存在本质区别,为了分析结构体系的整体性,建立适合该结构体系的“非等同现浇”的抗震设计方法具有重要意义。本文结合已进行的螺栓连接节点轴向拉伸试验和剪切试验,提出螺栓连接节点拉伸和剪切的本构模型。在此基础上,将单个螺栓连接节点简化为3个平动自由度(x、y、z)的非线性弹簧,模拟连接节点的力学行为,建立简化计算模型。借助螺栓连接预制墙板的拟静力试验结果验证了螺栓连接节点简化模型的有效性,显示可用于分析结构体系的抗震性能。基于节点简化模型,依托Midas Gen软件,提出了螺栓连接装配式墙板结构体系的建模方法。以实际工程为例,建立了该结构的设计模型,并进行在小震、中震作用下的弹性分析及大震作用下的弹塑性时程分析。结果表明:在各地震工况下,螺栓连接装配式墙板结构体系侧向位移较小,层间位移角分别小于弹性位移角限值的1/1200和弹塑性层间位移角限值的1/120,符合规范要求,螺栓连接节点承载力满足抗震需求,墙板角部混凝土没有被压溃,说明螺栓连接装配式墙板结构体系抗震性能优越。研究成果可为螺栓连接装配式墙板结构体系的工程建设提供设计依据,为该新型结构体系的推广奠定理论基础。

关键词：装配式混凝土墙板结构螺栓连接本构模型体系建模方法抗震设计

基于BiblioShiny的脑卒中步行功能领域研究现状及前沿分析

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医学综述 2025年第2期31卷 241-245,256页

作者：熊凤邵鑫熊时誉南昌大学第一附属医院康复医学科南昌330006 南昌大学第一附属医院高新医院科教科南昌330096

目的通过BiblioShiny分析全球脑卒中步行功能领域的研究现状与前沿热点。方法检索Web of Science核心合集数据库中关于脑卒中步行功能的研究文献,检索时间为2014年7月31日至2024年7月31日。采用BiblioShiny对国家、机构、关键词等进行... 详细信息

目的通过BiblioShiny分析全球脑卒中步行功能领域的研究现状与前沿热点。方法检索Web of Science核心合集数据库中关于脑卒中步行功能的研究文献,检索时间为2014年7月31日至2024年7月31日。采用BiblioShiny对国家、机构、关键词等进行数据分析。结果最终纳入脑卒中步行功能领域的研究7612篇文献,2014—2024年该领域的学术文献发表数量整体呈现持续增长的趋势。美国、中国的发文量分别位居世界第一、第二。关键词分析展示了疾病、机制、功能、评估、治疗和研究方法这六方面的热点研究,其中stroke(脑卒中)、rehabilitation(康复)、gait(步态)、balance(平衡)、walking(步行)是共现频率排名前5的关键词。Assistive technology(辅助技术)、wearable sensor(可穿戴传感器)、robotic exoskeleton(机器人外骨骼)、motor impairment(运动障碍)、gait assessment(步态评估)是近几年研究的前沿主题。结论在过去的十年中,全球对脑卒中步行功能的研究兴趣持续增长,缺血性脑卒中人群受到更多的关注,改善步行速度和平衡功能是康复重点。

关键词：脑卒中步行康复机器人文献计量学

Arsenite oxidation by three types of manganese oxides

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Journal of Environmental Sciences 2006年第2期18卷 292-298页

作者： feng xiong-han ZU Yan-qun TAN Wen-feng LIU Fan College of Resources and Environment Huazhong Agricultural University Wuhan 430070 China College of Resources and Environment Yunnan Agricultural University Kunming 650201 China

Oxidation of As（Ⅲ） by three types of manganese oxides and the effects ofpH, ion strength and tartaric acid on the oxidation were investigated by means of chemical analysis, equilibrium redox, X-ray diffraction （XRD） and transmission electron microscopy （TEM）. Three synthesized Mn oxide minerals, bimessite, cryptomelane, and hausmannite, which widely occur in soil and sediments, could actively oxidize As（Ⅲ） to As（Ⅴ）. However, their ability in As（Ⅲ）-oxidation varied greatly depending on their structure, composition and surface properties. Tunnel structured cryptomelane exhibited the highest ability of As （Ⅲ） oxidation, followed by the layer structured birnessite and the lower oxide hausmannite. The maximum amount of As （Ⅴ） produced by the oxidation was in the order （mmol/kg） of cryptomelane （824.2）〉 bimessite （480.4）〉 hausmannite （117.9）, As pH increased from the very low value（pH 2.5）, the amount of As（Ⅲ） oxidized by the tested Mn oxides was firstly decreased, then negatively peaked in pH 3.0 6.5, and eventually increased remarkably. Oxidation of As（Ⅲ） by the Mn oxides had a buffering effects on the pH variation in the solution. It is proposed that the oxidative reaction processes between As （Ⅲ） and biruessite（or cryptomelane） are as follows：（1） at lower pH condition：（MnO2）x＋ H3AsO3 ＋ 0.5H^＋=0.5H2AsO4^- ＋ 0.5HAsO4^2- ＋Mn〉^2＋（MnO2）x-1 ＋ H2O; （2） at higher pH condition：（MnO2）x ＋ H3AsO3 = 0.5H2AsO4^- ＋ 0.5HAsO4^2- ＋ 1.5H^＋＋（MnO2）x-1. MnO. With increase of ion strength, the As（Ⅲ） oxidized by bimessite and cryptomelane decreased and was negatively correlated with ion strength. However, ion strength had little influence on As （Ⅲ） oxidation by the hausmarmite. The presence of tartaric acid promoted oxidation of As（Ⅲ） by birnessite. As for cryptomelane and hansmannite, the same effect was observed when the concentration of tartaric acid was below 4 mmol/L, otherwise the oxidized As（Ⅲ） decreased. These findings are of great significance in improving our understanding

关键词： oxidation of As(Ⅲ) As(Ⅴ) Mn oxides pH ion strength tartaric acid

Exploratory study of logistics service quality scale based on online shopping malls

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第6期8卷 926-931页

作者： feng Yi-xiong ZHENG Bing TAN Jian-rong State Key Lab. of CAD ＆ CG Zhejiang University Hangzhou 310027 China College of Economics ＆ Management Dalian University Dalian 116622 China

Online shopping has already become the new mode that a lot of customers try to adopt. At the same time, the online shopping could not be successfully completed without logistics service. Logistics service quality (LSQ) has significant impact on revenue and profitability. This paper presents the issue from the perspective of the customer, and explores the initial factors of LSQ based on the online shopping through in-depth interview and the Delphi method. The survey uses a standard 7-point Likert-type scale to measure the LSQ. Empirical research results are shown in detail to confirm seven LSQ dimensions with Chinese characteristics, including timeliness quality, personal contact quality, order quality, order discrepancy handling, order condition and convenience. Statistical analyses of the investigation were conducted to test the reliability and validity of the LSQ evaluation model.

关键词： Online shopping Logistics service Logistics service quality (LSQ) Dimensions of LSQ

螺栓钢板连接预制混凝土轴压性能及承载力计算公式

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工程科学与技术 2025年第1期57卷 167-176页

作者：杨延婷葛琪左文豪李国熊峰吕洋孟永杰刘鹏宋瑛涵四川大学建筑与环境学院四川成都610065 中建三局第一建设工程有限责任公司湖北武汉430000

预制混凝土墙板结合夹心保温技术可大幅提升墙体的保温隔热性,提高建造速度和节能效率。本文设计了螺栓钢板拼接预制混凝土夹心墙板试件,开展试件的轴向压力荷载试验,研究其轴压性能,提出了考虑螺栓钢板拼接影响下的墙板轴心受压极限承... 详细信息

预制混凝土墙板结合夹心保温技术可大幅提升墙体的保温隔热性,提高建造速度和节能效率。本文设计了螺栓钢板拼接预制混凝土夹心墙板试件,开展试件的轴向压力荷载试验,研究其轴压性能,提出了考虑螺栓钢板拼接影响下的墙板轴心受压极限承载力计算公式。试验结果表明:夹心墙板破坏模式主要为螺栓钢板节点上方以及墙趾两端混凝土的压溃,混凝土面板与夹心保温层在墙体底部轻微分层,墙体侧面出现较大竖向裂缝。将试件的试验轴向荷载承载力与本文提出的公式及现有的公式进行了对比,结果表明:国内现有公式计算值与试验值的差值百分比为5%,国外现有计算公式与试验值的差值百分比为45.7%~77.2%,然而本文提出的公式与试验值差值百分比仅为0.4%。国外现有的公式非常保守,本文提出的公式能够准确预测此种螺栓连接墙板的轴向承载力。在试验研究基础上,考虑了长细比、墙体厚度、连接件布置、混凝土边肋等参数,进一步建立有限元模型验证本文提出的公式。分析结果表明:数值模型的计算结果与本文提出的计算公式误差在–8.05%~2.65%之内,国内现有公式和国外现有公式与计算值误差分别在–2.25%~8.58%和41.61%~78.41%范围内,本文公式预测结果较为准确。最后,分析了各个参数对螺栓钢板拼接预制混凝土夹心墙板轴向承载能力的影响,发现墙板的配筋率对极限承载力无明显影响;合理布置GFRP连接件、设置竖向混凝土肋、减小墙板长细比和增加混凝土板厚度可以提高墙体承载性能。

关键词：预制混凝土夹心墙体螺栓钢板连接轴压性能有限元分析承载力计算公式

Estimation of the anisotropy of hydraulic conductivity through 3D fracture networks using the directional geological entropy

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International Journal of Mining Science and Technology 2024年第2期34卷 137-148页

作者： Chuangbing Zhou Zuyang Ye Chi Yao Xincheng Fan feng xiong School of Infrastructure Engineering Nanchang UniversityNanchang 330031China b School of Resource and Environmental Engineering Wuhan University of Science and TechnologyWuhan 430081China School of Engineering China University of GeosciencesWuhan 430074China

With an extension of the geological entropy concept in porous media,the approach called directional entrogram is applied to link hydraulic behavior to the anisotropy of the 3D fracture networks.A metric called directional entropic scale is used to measure the anisotropy of spatial order in different *** with the traditional connectivity indexes based on the statistics of fracture geometry,the directional entropic scale is capable to quantify the anisotropy of connectivity and hydraulic conductivity in heterogeneous 3D fracture *** to the numerical analysis of directional entrogram and fluid flow in a number of the 3D fracture networks,the hydraulic conductivities and entropic scales in different directions both increase with spatial order(i.e.,trace length decreasing and spacing increasing)and are independent of the dip *** a result,the nonlinear correlation between the hydraulic conductivities and entropic scales from different directions can be unified as quadratic polynomial function,which can shed light on the anisotropic effect of spatial order and global entropy on the heterogeneous hydraulic behaviors.

关键词： 3D fracture network Geological entropy Directional entropic scale Anisotropy Hydraulic conductivity

Crack detection for wading-concrete structures using water irrigation and electric heating

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Frontiers of Structural and Civil Engineering 2023年第3期17卷 368-377页

作者： Jiang CHEN Zizhen ZENG Ying LUO feng xiong Fei CHENG Failure Mechanics and Engineering Disaster Prevention Key Laboratory of Sichuan Province Sichuan UniversityChengdu 610065China MOE Key Laboratory of Deep Earth Science and Engineering Sichuan UniversityChengdu 610065China College of Architecture and Environment Sichuan UniversityChengdu 610065China College of Biomass Science and Engineering Sichuan UniversityChengdu 610065China

Cracking in wading-concrete structures has a worse impact on structural safety compared with conventional concrete *** accurate and timely monitoring of crack development plays a significant role in the safety of wading-concrete *** heat-transfer rate near a crack is related to the flow velocity of the fluid in the *** on this,a novel crack-identification method for underwater concrete structures is *** method uses water irrigation to generate seepage at the interface of a crack;then,the heat-dissipation rate in the crack area will increase because of the convective heat-transfer effect near the *** information can be identified by monitoring the cooling law and leakage flow near *** proposed mobile crack-monitoring system consists of a heating system,temperature-measurement system,and irrigation system.A series of tests was conducted on a reinforcedconcrete beam using this *** crack-discrimination indexψwas defined,according to the subsection characteristics of the heat-source cooling *** effects of the crack width,leakage flow,and relative positions of the heat source and crack onψwere *** results showed that the distribution characteristics ofψalong the monitoring line could accurately locate the crack,but not quantify the crack ***,the leakage flow is sensitive to the crack width and can be used to identify it.

关键词： structural health monitoring underwater concrete structure fiber Bragg grating crack detection temperature tracer method

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Identification and prioritization of key health hazards to workers in roadway construction

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Transportation Safety and Environment 2022年第2期4卷 76-87页

作者： Shicong Mo Yuhong Wang feng xiong Department of Civil and Environment Engineering The Hong Kong Polytechnic UniversityHung Hom 999077Hong Kong SARChina College of Architecture and Environment Sichuan UniversityChengdu 610065China.

Although various rating systems have been developed to promote sustainable development in roadway construction,sustainability evaluation from the perspective of safeguarding workers’health is currently *** approaches were used in the study to identify and prioritize key health hazards to workers in roadway construction,including bibliometric analysis,questionnaire survey and analytic hierarchy process(AHP).Bibliometric analysis indicates that submicron particles and polycyclic aromatic compounds are the primary concerns of researchers,and ergonomics also attracts some attention.A questionnaire survey was conducted among construction workers in *** results suggest that the most frequently encountered occupational disorders by roadway construction workers are musculoskeletal disorders,heat stroke,respiratory health issues and hearing loss,and the most commonly encountered hazards are noise,dust,asphalt fumes,heat stress and some adverse working *** on associations between the health hazards and disorders were *** there are some discrepancies between the AHP scores provided by two groups of professionals in China,the commonly agreed top occupational hazards include dust,asphalt fumes,noise,high-/low-temperature stresses and chronic *** findings may be incorporated into rating systems for roadway construction to encourage the industry to adopt better practices for the well-being of workers.

关键词： sustainable construction occupational health roadway workers hazards and exposures analytic hierarchy process