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Vascular inflammation in the central nervous system

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Neural Regeneration Research 2022年第8期17卷 1728-1730页

作者： Xinying Guo zhen zhao Center for Neurodegeneration and Regeneration Zilkha Neurogenetic Institute and Department of Physiology and NeuroscienceKeck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA Neuroscience Graduate Program Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA

Vasculature is the interface between tissue and *** consists of endothelial cells,mural cells including vascular smooth muscle cells and pericytes,and other perivascular cells including macrophages and fibroblasts(Sweeney et al.,2019).The vascular system not only delivers oxygen and nutrients,but also shuttles the immune cells *** the first line of defense,the vascular system also senses the changes in surrounding tissue,particularly *** inflammation can occur in blood vessels of all sizes in any *** has a complex etiology,including infections such as coronavirus disease-19(COVID-19),and chronic condi t ions such as diabetes,hypertension and neurodegenerative diseases(Hanafi et al.,2020).Excessive vascular inflammation is clinically known as vasculitis,diagnosed by blood test,imaging and *** not only thickens the blood vessel wall,causing blood flow reduction and insufficient delivery of oxygen and nutrients,but also triggers inflammatory responses in secondary sites,or even the whole body.

关键词： inflammation al. Vascular

Study on the static properties of spiral springs under static loading

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Applied Mathematics and Mechanics(English Edition) 2021年第11期42卷 1571-1580页

作者： Zhixiang LI zhen zhao Caishan LIU Qingyun WANG School of Aeronautic Science and Engineering Beihang UniversityBeijing 100191China State Key Laboratory for Turbulence and Complex Systems College of EngineeringPeking UniversityBeijing 100871China

Spiral springs have a wide range of applications in various *** a result of the complexity of friction,few theoretical analyses of spring belts under static loading have been carried *** the piecewise smooth property of the whole contact area,a simplified static model of spiral springs under loading is established in this ***,three main stress and friction distribution areas of the spring belt are proposed,namely,internal,transitional,and external *** the outermost side of the spring is not subject to any pressure,a recursive method is adopted from the outside to the *** model provides the parameter conditions,i.e.,the internal and external forces are independent or ***,the case that the whole contact region of the spring belt has one subregion,two subregions,and three subregions is *** model gives a theoretical basis for the parameter optimization of spiral springs.

关键词： spiral spring simplified static model recursive method piecewise smooth feature

Tuning Thermal Gelling Behavior of N-isopropylacrylamide Based Copolymer through Introducing Cucurbit[8]uril Ternary Complex on Side-chain

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Chinese Journal of Polymer Science 2016年第10期34卷 1251-1260页

作者： hai-li ma hao chen sheng-zhen hou 谭业邦 School of Chemistry and Engineering Shandong University Jinan 250100 China

Thermo-gelation polymers have attracted increasing attention over decades. However, rare facile tuning method of sol-gel transition temperature restricted the wider application. Preceding study indicated that supramolecular interactions demonstrated a powerful means to control the structure and property of polymeric materials. Here we designed an N-isopropylacrylamide （NIPAM） based thermo-sensitive copolymer with naphthyl （Np） on its side chain. Positive-charged side-chain ternary complex was formed with cucurbit[8]uril （CB[8]） and methylviologen （MV2＋） via CB[8]-enhanced intermolecular charge-transfer （CT） interaction. Introducing the ternary complex CB[8]/MV2＋/Np on side-chain altered microstructure of macromolecular chains and led to a strong tendency for thermo gelation. Altering content of CB[8] and MV2＋ changed content of the positive-charged side-chain ternary complex and varied gelation temperature. Therefore, introducing supramolecular interaction endowed the hydrogel with tunable gelation property.

关键词： Thermo-sensitive copolymer Supramolecular chemistry Cucurbituril Charge transfer interaction Gelation.

Shuffled frog leaping algorithm with non-dominated sorting for dynamic weapon-target assignment

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Journal of Systems Engineering and Electronics 2023年第4期34卷 1007-1019页

作者： zhao Yang LIU Jicheng JIANG Ju zhen Ziyang College of Automation Engineering Nanjing University of Aeronautics and AstronautsNanjing 211106China

The dynamic weapon target assignment(DWTA)problem is of great significance in modern air ***,DWTA is a highly complex constrained multi-objective combinatorial optimization *** improved elitist non-dominated sorting genetic algorithm-II(NSGA-II)called the non-dominated shuffled frog leaping algorithm(NSFLA)is proposed to maximize damage to enemy targets and minimize the self-threat in air combat *** NSFLA,the shuffled frog leaping algorithm(SFLA)is introduced to NSGA-II to replace the inside evolutionary scheme of the genetic algorithm(GA),displaying low optimization speed and heterogeneous space search *** improvements have also been raised to promote the internal optimization performance of ***,the local evolution scheme,a novel crossover mechanism,ensures that each individual participates in updating instead of only the worst ones,which can expand the diversity of the ***,a discrete adaptive mutation algorithm based on the function change rate is applied to balance the global and local ***,the scheme is verified in various air combat *** results show that the proposed NSFLA has apparent advantages in solution quality and efficiency,especially in many aircraft and the dynamic air combat environment.

关键词： dynamic weapon-target assignment(DWTA)problem shuffled frog leaping algorithm(SFLA) air combat research

Approximate solutions to fractional differential equations

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Applied Mathematics and Mechanics(English Edition) 2023年第10期44卷 1791-1802页

作者： Yue LIU zhen zhao Yanni ZHANG Jing PANG College of Sciences Inner Mongolia University of TechnologyHohhot 010051China Department of Mathematics and Computer Science Hetao CollegeBayannur 015000Inner Mongolia Autonomous RegionChina Inner Mongolia Key Laboratory of Statistical Analysis Theory for Life Data and Neural Network Modeling Hohhot 010051China College of Mathematics and Statistics Ningbo UniversityNingbo 315211Zhejiang ProvinceChina College of Science Liaoning University of TechnologyJinzhou 121001Liaoning ProvinceChina

In this paper, the time-fractional coupled viscous Burgers' equation(CVBE)and Drinfeld-Sokolov-Wilson equation(DSWE) are solved by the Sawi transform coupled homotopy perturbation method(HPM). The approximate series solutions to these two equations are obtained. Meanwhile, the absolute error between the approximate solution given in this paper and the exact solution given in the literature is analyzed. By comparison of the graphs of the function when the fractional order α takes different values, the properties of the equations are given as a conclusion.

关键词： Caputo fractional derivative coupled viscous Burgers'equation(CVBE) Drinfeld-Sokolov-Wilson equation(DSWE) Sawi transform homotopy perturbation method(HPM)

Prediction of Spatiotemporal Evolution of Urban Traffic Emissions Based on Taxi Trajectories

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International Journal of Automation and computing 2021年第2期18卷 219-232页

作者： zhen-Yi zhao Yang Cao Yu Kang zhen-Yi Xu Department of Automation University of Science and Technology of ChinaHefei 230026China Department of Automation and State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230026China Institute of Advanced Technology University of Science and Technology of ChinaHefei 230088China Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefei 230088China

With the rapid increase of the amount of vehicles in urban areas,the pollution of vehicle emissions is becoming more and more *** prediction of the spatiotemporal evolution of urban traffic emissions plays a great role in urban planning and policy *** existing methods usually focus on estimating vehicle emissions at historical or current moments which cannot well meet the demands of future *** work has started to pay attention to the evolution of vehicle emissions at future moments using multiple attributes related to emissions,however,they are not effective and efficient enough in the combination and utilization of different *** address this issue,we propose a joint framework to predict the future evolution of vehicle emissions based on the GPS trajectories of taxis with a multi-channel spatiotemporal network and the motor vehicle emission simulator(MOVES)***,we first estimate the spatial distribution matrices with GPS trajectories through map-matching *** matrices can reflect the attributes related to the traffic status of road networks such as volume,speed and ***,our multi-channel spatiotemporal network is used to efficiently combine three key attributes(volume,speed and acceleration)through the feature sharing mechanism and generate a precise prediction of them in the future ***,we adopt an MOVES model to estimate vehicle emissions by integrating several traffic factors including the predicted traffic states,road networks and the statistical information of urban *** evaluate our model on the Xi′an taxi GPS trajectories *** show that our proposed network can effectively predict the temporal evolution of vehicle emissions.

关键词： Vehicle emission prediction spatiotemporal gragh convolution GPS trajectories motor vehicle emission simulator(MOVES)model feature sharing

A new meshless approach for bending analysis of thin plates with arbitrary shapes and boundary conditions

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Frontiers of Structural and Civil Engineering 2022年第1期16卷 75-85页

作者： Wei DU Xiaohua zhao Huiming HOU zhen WANG Department of Civil and Environmental Engineering Shantou UniversityShantou 515063China Key Laboratory of Structure and Wind Tunnel of Guangdong Higher Education Institutes Shantou 515063China

An efficient and meshfree approach is proposed for the bending analysis of thin *** approach is based on the choice of a set of interior points,for each of which a basis function can be *** deflection is then approximated as the linear combination of those basis *** traditional meshless methods,present basis functions are defined in the whole domain and satisfy the governing differential equation for ***,no domain integration is needed,while the unknown coefficients of deflection expression could be determined through boundary conditions by using a collocation point *** efficiency and accuracy of the approach are shown through numerical results of plates with arbitrary shapes and boundary conditions under various loads.

关键词： plate bending meshless method collocation

Mixed Two-and Eight-level Fractional Factorial Split-plot Designs Containing Clear Effects

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Acta Mathematicae Applicatae Sinica 2016年第4期32卷 995-1004页

作者： Ye YUAN sheng-li zhao School of Statistics Qufu Normal University

Fractional factorial split-plot （FFSP） designs are useful in practical experiments. When the num- bers of levels of the factors are not all equal in an experiment, mixed-level design is selected. This paper investigates the conditions of a resolution III or IV FFSP design with both two-level and eight-level factors to have various clear effects, including two types of main effects and three types of two-factor interaction compo- nents.

关键词： split-plot design mixed-level design clear

Ordered Reproducing Hilbert Spaces over C^2

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Acta Mathematica Sinica,English Series 2008年第3期24卷 503-510页

作者： sheng zhao HOU Jie WANG Department of Mathematics Suzhou University Suzhou 215006 P R China Department of Mathematics Shanxi Normal University Linfen 041004 P. R. China

In this paper, we study the relation between the ordered reproducing Hilbert space and its reproducing kernel. A complete description of a similar and unitary equivalence of two quasi-invariant subspaces generated by ... 详细信息

关键词： ordered reproducing Hilbert spaces quasi-invariant subspaces