COVID-19病例与城市人口规模的标度律及其时间演化 |
许刚, 焦利民, 李新虎, 肖逸雄, 宫鹏, 龚健雅 |
Scaling law of COVID-19 cases and city size and its evolution over time |
XU Gang, JIAO Limin, LI Xinhu, XIAO Yixiong, GONG Peng, GONG Jianya |
图5 美国不同区域COVID-19病例及其与人口规模标度指数的时间变化 |
Fig. 5 Daily variations of COVID-19 cases and deaths and their scaling exponents in four regions of the United States |
![]() |