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Quantitative evaluation and spatial differentiation of eco-environmental livability in Zhejiang Province, China

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Journal of Mountain Science 2020年第6期17卷 1491-1508页

作者： wang Yi ZHU ying-ming YU Mao-jun XU Jing School of Economics and Management Nanjing University of Science and TechnologyNanjing 210094China Industrial Cluster Decision-making Consulting Research Base in Jiangsu Nanjing 210094China Anhui Institute of Economics Hefei 230051China Tourism and Social Administration College Nanjing Xiaozhuang UniversityNanjing 211171China

The scientific analyses of the spatial patterns of regional eco-environment livability,along with the explorations of the correlations between ecoenvironments and population and economic activity distributions,are of major significance in the guidance of the coordinated development between social economies,natural resources,and *** this study,the topography,climate,hydrology,land cover,air quality,and the dangers presented by natural hazards in the study area were investigated in order to establish an evaluation model for the regional eco-environmental ***,the observed spatial patterns and regional differences in the eco-environmental livability,as well as their relationships with the distributions of population and economic activities in Zhejiang Province,were *** results showed that the ecoenvironmental livability in Zhejiang Province displayed a gradual decreasing trend from southwest to northeast,as well as from the mountains to the hills,valleys,and plains *** the compartmentalization of the eco-environmental livability,it was observed that the lowest livable area covered the largest population,accounting for approximately 29.64%of the total population in the study *** higher livable areas covered the widest land areas,accounting for approximately 26.15%of the total ***,it was found that the eco-environmental livability in the mountain areas was higher than that in the plain areas in Zhejiang ***,the ecoenvironmental livability was found to have a significant exponential relationship with the population and GDP densities of Zhejiang Province,with the R^2 of the curve-fittings reaching 0.835 and 0.656,***,it was determined that the coefficient of the exponential function was negative,which indicated that a strong negative relationship existed between the eco-environmental livability and densities of the population and economic *** was assumed that the impacts

关键词： Eco-environment Livability Quantitative evaluations Spatial differentiation Zhejiang Province

Characteristic Insights on Industrial Cyber Security and Popular Defense Mechanisms

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China Communications 2021年第1期18卷 130-150页

作者： ming Wan Jiawei Li ying Liu Jianming Zhao Jiushuang wang School of Information Liaoning UniversityShenyang 110036China School of Electronic and Information Engineering Beijing Jiaotong UniversityBeijing 100044China Shenyang Institute of Automation Chinese Academy of SciencesShenyang 110016China

Due to the deep integration of information technology and operational technology,networked control systems are experiencing an increasing risk of international cyber *** practice,industrial cyber security is a significant topic because current networked control systems are supporting various critical infrastructures to offer vital utility *** comparing with traditional IT systems,this paper first analyzes the uncontrollable cyber threats and classified attack characteristics,and elaborates the intrinsic vulnerabilities in current networked control systems and novel security challenges in future Industrial *** that,in order to overcome partial vulnerabilities,this paper presents a few representative security mechanisms which have been successfully applied in today’s industrial control systems,and these mechanisms originally improve traditional IT defense technologies from the perspective of industrial ***,several popular security viewpoints,adequately covering the needs of industrial network structures and service characteristics,are proposed to combine with burgeoning industrial information *** target to provide some helpful security guidelines for both academia and industry,and hope that our insights can further promote in-depth development of industrial cyber security.

关键词： industrial cyber threats industrial characteristics vulnerabilities security mechanisms and viewpoints

Anisotropy of two-dimensional ReS_(2)and advances in its device application

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Rare Metals 2021年第12期40卷 3357-3374页

作者： Ya-Di Cao ying-Hui Sun Su-Fei Shi Rong-ming wang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface ScienceSchool of Mathematics and PhysicsUniversity of Science and Technology BeijingBeijing100083China Department of Chemical and Biological Engineering Rensselaer Polytechnic InstituteTroyNY 12180USA Department of Electrical Computer and Systems EngineeringRensselaer Polytechnic InstituteTroyNY 12180USA

Two-dimensional(2D)transition metal dichalcogenides(TMDCs)have attracted growing interest regarding their potential applications in next-generation electronic and optoelectronic *** to their atomic thickness and tunable bandgap,they exhibit unique mechanical,electrical,and optical *** a specific member of the TMDC family,rhenium disulfide(ReS_(2))has stimulated intensive interest due to its anisotropic crystal structure,weak inter-layer coupling,and anisotropic electrical and optical *** this review,we summarize the distinct crystal structure and intrinsic anisotropic properties of ReS_(2),followed by an introduction to its synthesis *** current applications of ReS_(2)and its heterojunctions are presented based on its anisotropic *** review not only provides a timely summary of the current applications of ReS_(2)and its heterojunctions,but also inspires new approaches to develop other innovative devices based on 2D materials with a low lattice symmetry.

关键词： Transition metal dichalcogenides(TMDCs) Rhenium disulfide Anisotropic property Heterojunction Functional device

Dynamic characteristics of the planetary gear train excited by time-varying meshing stiffness in the wind turbine

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International Journal of Minerals,Metallurgy and Materials 2018年第9期25卷 1104-1112页

作者： Rui-ming wang Zhi-ying Gao Wen-rui wang Yang Xue De-yi Fu State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute School of Mechanical Engineering University of Science and Technology Beijing

Wind power has attracted increasing attention as a renewable and clean energy. Gear fault frequently occurs under extreme environment and complex loads. The time-varying meshing stiffness is one of the main excitations. This study proposes a 5 degree-of-freedom torsional vibration model for the planetary gear system. The influence of some parameters(e.g., contact ratio and phase difference) is discussed under different conditions of a single teeth pair and double pairs of teeth. The impact load caused by the teeth face fault, ramped load induced by the complex wind conditions, and the harmonic excitation are investigated. The analysis of the time-varying meshing stiffness and the dynamic meshing force shows that the dynamic design under different loads can be made to avoid resonance, can provide the basis for the gear fault location of a wind turbine, and distinguish the fault characteristics from the vibration signals.

关键词： wind turbine planetary gear time-varying meshing stiffness dynamic characteristics

Subpopulation genetic structure of a plant panmictic population of Castanea sequinii as revealed by microsatellite markers

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Frontiers in Biology 2007年第2期2卷 187-195页

作者： wang ying KANG ming HUANG Hongwen Wuhan Botanical Garden Chinese Academy of SciencesWuhan 430074China Graduate School of the Chinese Academy of Science Beijing 100039China

Castanea squinii Dode,an endemic tree widely distributed in China,plays an important role both in chestnut breeding and forest ecosystem *** spatial genetic structure within and among populations is an important part of the evolutionary and ecological genetic dynamics of natural populations,and can provide insights into effective conservation of genetic *** the present study,the spatial genetic structure of a panmictic natural population of *** in the Dabie Mountain region was investigated using microsatellite *** prescreened microsatellite loci generated 29-33 alleles each,and were used for spatial autocorrelation *** on Moran’s I coefficient,a panmictic population of *** in the Dabie Mountain region was found to be lacking a spatial genetic *** results suggest that a high pollen-mediated gene flow among subpopulations counteract genetic drift and/or genetic differentiation and plays an important role in maintaining a random and panmictic population structure in *** ***,a spatial genetic structure was detected in each subpopulation’s scale(0.228 km),with all three subpopulations showing significant fine-scale *** genetic variation was found to be nonrandomly distributed within 61 m in each subpopulation(Moran’s I positive values).Although Moran’s I values varied among the different subpopulations,Moran’s I in all the three subpopulations reached the expected values with an increase in distances,suggesting a generally patchy distribution in the *** fine-scale structure seems to reflect restricted seed dispersal and microenvironment selection in *** results have important implications for understanding the evolutionary history and ecological process of the natural population of *** and provide baseline data for formulating a conservation strategy of Castanea species.

关键词： Castanea sequinii genetic diversity genetic structure microsatellite panmictic population spatial autocorrelation

Fuzzy Topology Based on Residuated Lattice-Valued Logic

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Acta Mathematica Sinica,English Series 2001年第1期17卷 89-102页

作者： ming Sheng ying State Key Laboratory of Intelligent Technology and Systems Department of Computer Science and Technology Tsinghua University

We use a semantical method of complete residuated lattice-valued logic to give a general- ization of fuzzy topology as a partial answer to a problem by Rosser and Turquette.

关键词： Fuzzy topology Residuated lattice Many-valued logic Semantics

Mulberry leaf flavonoids protect against glucotoxicity-induced INS-1 cell apoptosis

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Journal of Traditional Chinese Medicine 2019年第2期39卷 153-159页

作者： wang ying Li ming Yu Xuesong He Sheng Wu Xinrong wang Yan School of Chemistry Engineering Guangdong Pharmaceutical University School of Biosciences and Biopharmaceutics Guangdong Pharmaceutical University Department of Pharmacy General Hospital of Guangzhou Military Command of People's Liberation Army School of Traditional Chinese Medicine Guangdong Pharmaceutical University

OBJECTIVE:To investigate the effect of mulberry leaf flavonoids (MLF) on apoptosis of pancreatic cells induced by high ***:Long exposure to high glucose induces apoptosis of pancreaticβcells, which can lead to diabetes. In this study, we used the rat insulinoma cell line, INS-1. High glucose (33.3 mM) was used to establish a glucotoxicity model. The MTT assay was used to evaluate the MLF effect on cell ***-1 cells were treated with various concentra-tions of MLF (125, 250 and 500 mg/L) for 24 h, and then stimulated with 5.5 or 33.3 mM glucose for 48 ***, the cell supernatants were collected for enzyme-linked immunosorbent assay to determine the level of superoxide dismutase (SOD), catalase(CAT), glutathione peroxidase (GSH-Px), malondialdehyde (MDA), monocyte chemoattractant protein1 (MCP-1), tumor necrosis factor a (TNF-α) and interleukin 6 (IL-6). Western blotting was used to determine the expression of Bcl-2, Bax, caspase-3 and Caspase-9. Cell apoptosis was measured by Annexin V-FITC/propidium iodide double staining and flow ***:MLF (125-500 mg/L) improved cell viability. Furthermore, MLF (250 and 500 mg/L) inhibited apoptosis induced by high glucose. The anti-apoptosis effect of MLF was associated with increased SOD, CAT and GSH-Px expression, as well as reduced MDA levels in high-glucose-treated INS-1cells. Moreover, MLF upregulated Bcl-2 expression,downregulated Bax expression, and reduced the expression of caspase-3 and Caspase-9. Finally, MLF decreased the secretion of inflammatory cytokines and insulin in high-glucose-induced INS-1 ***:MLF is a potential therapeutic agent for preventing diabetes and related disorders.

关键词： Morus Plant leaves In suli no ma Flavon oids Toxicity Apoptosis

Regulatory role of calpain in neuronal death

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Neural Regeneration Research 2018年第3期13卷 556-562页

作者： Si-ying Cheng Shu-chao wang ming Lei Zhen wang Kun Xiong Xiangya Medical School Central South University Department of Anatomy and Neurobiology School of Basic Medical Sciences Central South University

Calpains are a group of calcium-dependent proteases that are over activated by increased intracellular calcium levels under pathological conditions. A wide range of substrates that regulate necrotic, apoptotic and autophagic pathways are affected by calpain. Calpain plays a very important role in neuronal death and various neurological disorders. This review introduces recent research progress related to the regulatory mechanisms of calpain in neuronal death. Various neuronal programmed death pathways including apoptosis, autophagy and regulated necrosis can be divided into receptor interacting protein-dependent necroptosis, mitochondrial permeability transition-dependent necrosis, pyroptosis and poly （ADP-ribose）polymerase 1-mediated parthanatos. Calpains cleave series of key substrates that may lead to cell death or participate in cell death. Regarding the investigation of calpain-mediated programed cell death, it is necessary to identify specific inhibitors that inhibit calpain mediated neuronal death and nervous system diseases.

关键词： nerve regeneration calpain calpastatin central nervous system apoptosis autophagy B-cell lymphoma cyclin-dependent kinases mitochondrial permeability transition neural regeneration

考虑社会学习的产品定价和质量决策——参照效应与消费者异质性的影响

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管理工程学报 2025年第1期39卷 196-213页

作者：李锋魏莹华南理工大学工商管理学院暨南大学管理学院广州品牌创新发展研究基地

消费者通过观察电商平台的产品评论信息更新对产品质量的感知,这种社会学习行为直接影响消费者的购买决策以及企业的产品质量和价格策略。本文考虑消费者购买过程中的两种参照效应:学习参照和体验参照。前者指购买前消费者关于产品质量... 详细信息

消费者通过观察电商平台的产品评论信息更新对产品质量的感知,这种社会学习行为直接影响消费者的购买决策以及企业的产品质量和价格策略。本文考虑消费者购买过程中的两种参照效应:学习参照和体验参照。前者指购买前消费者关于产品质量的预判对社会学习的效果产生参照效应;后者指学习更新后的质量感知对于消费者购买后的质量体验形成参照。本文构建多智能体模型,以产品评论信息为载体,研究消费者社会学习中的参照效应以及消费者异质性对企业产品质量和价格决策的影响,之后进一步讨论了平台信息策略和企业区别定价策略的效果。研究发现:首先,社会学习中的学习参照效应导致企业降低价格、提高质量且从中受损;而体验参照效应提高用户评价信息均值和集中度,从而使企业提高定价且从中受益。总体而言,社会学习行为有利于企业但参照效应对企业不利。其次,消费者对于产品质量感知的差异程度影响社会学习和参照效应的效果。当质量感知差异程度较低时,考虑参照效应的社会学习行为对企业的价格和质量决策的影响不明显;当感知差异增大到一定程度时,会显著降低企业的价格并影响质量决策。再次,企业从消费者质量先验感知差异程度中受益,但受损于质量后验体验的差异程度。和统一价格策略相比,区别定价能够提高企业收益,但对质量决策影响甚微。最后,平台与卖方共享消费者信息可以减少企业的机会损失,而与买方共享分类统计信息对企业决策影响不大。研究结果同时提供了丰富的管理启示。

关键词：社会学习参照效应质量区别定价智能体建模与仿真

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