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Influence of Kerr Effect on Second-Order Nonlinearity Induced Transparency

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Wuhan University Journal of Natural Sciences 2024年第1期29卷 67-73页

作者： zhang zhiqiang ZHOU Yanhui College of Architectural Engineering Zhengzhou Business UniversityZhengzhou 451200HenanChina Quantum Information Research Center Shangrao Normal UniversityShangrao 334001JiangxiChina

We theoretically study the effect of Kerr effect on the second-order nonlinearity induced transparency in a double-resonant optical cavity *** show that in the presence of the Kerr effect,as the strength of the Kerr effect increases,the absorption curve exhibits an asymmetric-symmetric-asymmetric transition,and the zero absorption point shifts with the increase of the Kerr ***,by changing the strength of the Kerr effect,we can control the width of the transparent window,and the position of the zero-absorption point and meanwhile change the left and right width of the absorption *** asymmetry absorption curve can be employed to improve the quality factor of the cavity when the frequency detuning is tuned to be around the right *** simple dependence of the zeroabsorption point on the strength of Kerr effect suggests that the strength of Kerr effect can be measured by measuring the position of the zero-absorption point in a possible application.

关键词： Kerr effect second-order nonlinearity induced transparency nonlinear optics quantum optics

Integrated Active Suspension and Anti-Lock Braking Control for Four-Wheel-Independent-Drive Electric Vehicles

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Chinese Journal of Mechanical Engineering 2024年第1期37卷 87-98页

作者： Ze Zhao Lei zhang Xiaoling Ding zhiqiang zhang Shaohua Li Liang Gu National Engineering Research Center for Electric Vehicles Beijing Institute of TechnologyBeijing 100081China State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures Shijiazhuang Tiedao UniversityShijiazhuang 050043China

This paper presents an integrated control scheme for enhancing the ride comfort and handling performance of a four-wheel-independent-drive electric vehicle through the coordination of active suspension system(ASS)and anti-lock braking system(ABS).First,a longitudinal-vertical coupled vehicle dynamics model is established by integrating a road input *** the coupling mechanisms between longitudinal and vertical vehicle dynamics are *** ASS-ABS integrated control system is proposed,utilizing an H∞controller for ASS to optimize load transfer effect and a neural network sliding mode control for ABS ***,the effectiveness of the proposed control scheme is evaluated through comprehensive tests conducted on a hardware-in-loop(HIL)test *** HIL test results demonstrate that the proposed control scheme can significantly improve the braking performance and ride comfort compared to conventional ABS control methods.

关键词： Four-wheel-independent-drive electric vehicles Active suspension system(ASS) Anti-lock braking system(ABS) Vertical-longitudinal vehicle dynamics

Effect of icosahedral phase formation on the stress corrosion cracking(SCC)behaviors of the as-cast Mg-8%Li(in wt.%)based alloys

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Journal of Magnesium and Alloys 2024年第1期12卷 225-236页

作者： Shuo Wang Daokui Xu Dongliang Wang zhiqiang zhang Baojie Wang Key Lab of Electromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang110819China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016China Engineering Research Center of Advanced Materials Preparing Technology Ministry of EducationNortheastern UniversityShenyang110819China School of Environmental and Chemical Engineering Shenyang Ligong UniversityShenyang110159China Binzhou Institute of Technology BinzhouShandong Province256606China Shandong Key Laboratory of Advanced Aluminium Materials and Technology BinzhouShandong Province256606China

Through exploring the stress corrosion cracking(SCC)behaviors of the as-cast Mg-8%Li and Mg-8%Li-6%Zn-1.2%Y alloys in a 0.1 M NaCl solution,it revealed that the SCC susceptibility index(I_(SCC))of the Mg-8%Li alloy was 47%,whilst the I_(SCC)of the Mg-8%Li-6%Zn-1.2%Y alloy was 68%.Surface,cross-sectional and fractography observations indicated that for the Mg-8%Li alloy,theα-Mg/β-Li interfaces acted as the preferential crack initiation sites and propagation paths during the SCC *** regard to the Mg-8%Li-6%Zn-1.2%Y alloy,the crack initiation sites included the I-phase and the interfaces of I-phase/β-Li andα-Mg/β-Li,and the preferential propagation paths were the I-phase/β-Li andα-Mg/β-Li ***,the SCC of the two alloys was concerned with hydrogen embrittlement(HE)mechanism.

关键词： Magnesium-lithium alloy Stress corrosion cracking I-phase Fracture analysis

Analyzing the transportation infrastructure-rural industry integration relationship in China

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Chinese Journal of Population,Resources and Environment 2024年第2期22卷 157-166页

作者： Jun He zhiqiang zhang Zhiyun Tan Shudan Zheng School of Economics and Management Chongqing Normal UniversityChongqing 400000China Chongqing Vocational College of Light Industry Chongqing 401329China

Transportation infrastructure is crucial to China’s economic growth because it substantially contributes to the holistic development of rural primary,secondary,and tertiary *** study innovatively examines transportation infrastructure and urbanization levels to explore,both theoretically and empirically,their relationship with the holistic development of primary,secondary,and tertiary industries in rural China,and the mediating role of urbanization on this *** employed fixed-effects models,the entropy weight approach,mixed regression,and generalized method of moments to analyze the data of 30 provinces across China from 2013 to *** results indicate that the construction of transportation infrastructure directly fosters the collective advancement of such industries in rural areas and that urbanization partially mediates the transportation infrastructure-rural industry integration ***,the western region shows disparities in the integrated development of these *** analysis reveals that foreign investments amplify the positive influence of transportation infrastructure on rural industry ***,the enhancement of rural transportation infrastructure,promotion of urbanization,implementation of strategic planning,and strengthening of support mechanisms are crucial aspects in the comprehensive development of rural industries and the achievement of rural revitalization in China.

关键词： Transportation infrastructure Integrated development of rural industries Urbanization development

Origin of tradeoff between movement velocity and attachment duration of kinesin motor on a microtubule

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Chinese Physics B 2024年第2期33卷 557-566页

作者：刘玉颖张志强 Department of Physics College of ScienceChina Agricultural UniversityBeijing 100083China Basic Ministry Space Engineering UniversityBeijing 101416China

Kinesin-1 motor protein is a homodimer containing two identical motor domains connected by a common long coiledcoil stalk via two flexible neck linkers. The motor can step on a microtubule with a velocity of about 1 μm·s-1and an attachment duration of about 1 s under physiological conditions. The available experimental data indicate a tradeoff between velocity and attachment duration under various experimental conditions, such as variation of the solution temperature,variation of the strain between the two motor domains, and so on. However, the underlying mechanism of the tradeoff is unknown. Here, the mechanism is explained by a theoretical study of the dynamics of the motor under various experimental conditions, reproducing quantitatively the available experimental data and providing additional predictions. How the various experimental conditions lead to different decreasing rates of attachment duration versus velocity is also explained.

关键词： motor protein velocity detachment time processivity

黄河流域生态保护迈向高质量发展的特征——植被绿度、生产力和降水利用效率的差异性变化

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Engineering 2024年第3期34卷 109-119页

作者： Yang Yu Ting Hua Liding Chen zhiqiang zhang Paulo Pereira Jixian National Forest Ecosystem Observation and Research Station National Ecosystem Research Network of China(CNERN)School of Soil and Water ConservationBeijing Forestry UniversityBeijing 100083China School of Soil and Water Conservation Beijing Forestry UniversityBeijing 100083China State Key Laboratory of Earth Surface Processes and Resource Ecology Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Institute of Land Surface System and Sustainable Development Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Environmental Management Laboratory Mykolas Romeris UniversityVilnius 08303Lithuania

Globally,vegetation has been changing *** vegetation-water dynamic is key to understanding ecosystem structure and functioning in water-limited *** satellite monitoring has detected global vegetation ***,a vegetation greenness increase does not mean that ecosystem functions *** intricate interplays resulting from the relationships between vegetation and precipitation must be more adequately *** this study,satellite data,for example,leaf area index(LAI),net primary production(NPP),and rainfall use efficiency(RUE),were used to quantify vegetation dynamics and their relationship with rainfall in different reaches of the Yellow River Basin(YRB).A sequential regression method was used to detect trends of NPP sensitivity to *** results showed that 34.53%of the YRB exhibited a significant greening trend since *** them,20.54%,53.37%,and 16.73%of upper,middle,and lower reach areas showed a significant positive trend,*** showed a similar trend to LAI in the YRB upper,middle,and lower reaches.A notable difference was noted in the distributions and trends of RUE across the upper,middle,and lower ***,there were significant trends in vegetation-rainfall sensitivity in 16.86%of the YRB’s middle reaches—14.08%showed negative trends and 2.78%positive trends.A total of 8.41%of the YRB exhibited a marked increase in LAI,NPP,and ***,strategic locations reliant on the correlation between vegetation and rainfall were identified and designated for restoration planning purposes to propose future ecological restoration *** analysis indicates that the middle reach of the YRB exhibited the most significant variation in vegetation greenness and *** present study underscores the significance of examining the correlation between vegetation and rainfall within the context of the high-quality development strategy of the *** outcomes of our analysis and the

关键词： Vegetation greenness Vegetation productivity Rainfall use efficiency Sensitivity Yellow River Basin

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萧萐父与中国哲学的现代转型

中国哲学史 2024年第3期 65-72页

作者：张志强内蒙古大学哲学学院

以张岱年、冯契、萧萐父为代表的学术共同体将马克思主义基本原理与中国传统哲学内容,在本体论、认识论、价值论、伦理学等层面深入结合,形成了一系列有创造性的表述、说法以及理论体系。萧萐父的早期启蒙说通过将“启蒙”观念诠释为一... 详细信息

以张岱年、冯契、萧萐父为代表的学术共同体将马克思主义基本原理与中国传统哲学内容,在本体论、认识论、价值论、伦理学等层面深入结合,形成了一系列有创造性的表述、说法以及理论体系。萧萐父的早期启蒙说通过将“启蒙”观念诠释为一个社会即将转型的自我批判以及哲学新动向,为探讨中国式现代化的活水源头以及中国哲学的现代转型,提供了思想动力。萧父晚年对“新人学”的设想,在“新心学”、“新理学”等从道德心性、本体论、知识论等角度理解中国哲学的现代转型之外,对先秦诸子人道主义思想和明清之际的人文主义思潮作了现代转化,核心要义是追求诗与哲学的互化,以及审美、契真、向善的统一,将中国哲学的人文精神拓展到一个新的面向。

关键词：萧萐父中国哲学史主体性中国式现代化早期启蒙说

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中国式现代化的文明意义

东南学术 2024年第3期 1-9,246页

作者：张志强中国社会科学院哲学研究所

中国式现代化的中国特色根基于中华文明,来自中国共产党人运用马克思主义对中华文明的激活再造。“第二个结合”提供了中国式现代化的文明视野和实现中国式现代化的文明路径。作为古老文明现代化和社会主义现代化的理论,中国式现代化理... 详细信息

中国式现代化的中国特色根基于中华文明,来自中国共产党人运用马克思主义对中华文明的激活再造。“第二个结合”提供了中国式现代化的文明视野和实现中国式现代化的文明路径。作为古老文明现代化和社会主义现代化的理论,中国式现代化理论是对世界现代化理论的创新和发展,也是对中国特色创造出的现代化新的共同特征的高度总结,其中蕴含着深刻的哲学突破,具有从中国实践中创造当代中国马克思主义的社会理论和文明理论的伟大意义。中国式现代化理论作为习近平新时代中国特色社会主义思想的重要组成部分,深刻体现了习近平新时代中国特色社会主义思想的世界观和方法论,是自信自强、守正创新的科学产物。

关键词：中国式现代化中华文明文化生命体古今中西之争

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中华之道:中华文明突出特性的哲学阐释

史学理论研究 2024年第3期 4-14,158页

作者：张志强中国社会科学院哲学研究所 100732

中华文明突出的连续性、创新性、统一性、包容性、和平性,是中华文明长期发展中形成的规律性特征,是中华文明发展规律的内涵。中华文明发展规律就是中华之道。中华之道是中华文明的形成发展之道,是中国所以为中国的原理性揭示,是中华民... 详细信息

中华文明突出的连续性、创新性、统一性、包容性、和平性,是中华文明长期发展中形成的规律性特征,是中华文明发展规律的内涵。中华文明发展规律就是中华之道。中华之道是中华文明的形成发展之道,是中国所以为中国的原理性揭示,是中华民族共同体团结凝聚的道理总结,也是中华文明和中华民族为人类永续发展贡献的智慧结晶。“五个突出特性”能够准确地刻画中华文明的本质规定性,能够精准呈现中华之道的内涵。连续性对中华之道具有奠基性意义,创新性是中华文明连续发展的内在根据,统一性是中华文明永续发展的内在要求,包容性是实现中华文明统一性的必要途径,和平性是中华文明包容性的价值表现。建设中华民族现代文明,就是要在坚持中华文明突出特性的前提下,充分实现中华文明突出特性的现代化,创造出中华文明的现代形态。中华民族现代文明,必定是对中华文明突出特性一气贯通中创造转化和创新发展的现代文明。

关键词：中华之道中华文明突出特性哲学阐释