The World Health Organization(WHO)defines health as“a state of complete physical,mental and social well-being and not merely the absence of disease or infirmity”(WHO,2017),and mental health is defined as not only th...The World Health Organization(WHO)defines health as“a state of complete physical,mental and social well-being and not merely the absence of disease or infirmity”(WHO,2017),and mental health is defined as not only the absence of mental illness,but also the presence of psychological well-being.An expanding body of evidence highlights the relationship between nature(such as urban greenspace)and health(Li et al.,2019;Flaxman et al.,2020).展开更多
Traffic network is an importance asp ect of researching controllable parameters of an urban spatial morpholo-gy.Based on GIS,traffic network str ucture complexity can be understood by using fractal geometry in which t...Traffic network is an importance asp ect of researching controllable parameters of an urban spatial morpholo-gy.Based on GIS,traffic network str ucture complexity can be understood by using fractal geometry in which th e length-radius dimension describes change of network density,and ramification-radius dimension describes complexity and accessibility of urban network.It i s propitious to analyze urban traffic network and to understand dynamic c hange process of traffic network using expanding f ractal-dimension quantification.Meanwhile the length-radius dimension and ramifica-tion-radius dimension could be rega rd as reference factor of quantitative describing urban traffic network.展开更多
基金National Natural Science Foundation of China(No.82001996)Fundamental Research Funds for the Central Universities of China.
文摘The World Health Organization(WHO)defines health as“a state of complete physical,mental and social well-being and not merely the absence of disease or infirmity”(WHO,2017),and mental health is defined as not only the absence of mental illness,but also the presence of psychological well-being.An expanding body of evidence highlights the relationship between nature(such as urban greenspace)and health(Li et al.,2019;Flaxman et al.,2020).
文摘Traffic network is an importance asp ect of researching controllable parameters of an urban spatial morpholo-gy.Based on GIS,traffic network str ucture complexity can be understood by using fractal geometry in which th e length-radius dimension describes change of network density,and ramification-radius dimension describes complexity and accessibility of urban network.It i s propitious to analyze urban traffic network and to understand dynamic c hange process of traffic network using expanding f ractal-dimension quantification.Meanwhile the length-radius dimension and ramifica-tion-radius dimension could be rega rd as reference factor of quantitative describing urban traffic network.
