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您的检索式：作者名="LV Zhenghui"
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| 1 | Epidemiological and clinical features of children with the Omicron BA.5.2 subvariant in Guangzhou显示文摘Dear Editor,Coronavirus disease 2019(COVID-19)is a novel infectious disease caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).Compared with previous variants,Omicron strains are more easily transmissible,have a greater ability to evade the human immune response,and are characterized as naturally virulence attenuated.1 During the early stages of the COVID-19 pandemic,it became apparent that children were less easily infected than adults. | Feng Li Yinghua He Xianglong Lan Lu Li Fei Gu Zhao Ye Lv Wang Zhenghui Cen Weichun Zhu Haisheng Yu | 2023 | Signal Transduction and Targeted Therapy2023，8，5： | 0 |
| 2 | Evaluation of Traffic Network between Tourist Attractions Based on GIS in Tai’an City显示文摘Tai’an City is rich in tourism resources,and there are many A-class tourist attractions.Based on the functions and characteristics of geographic information system(GIS),as well as the spatial distribution characteristics and distribution structure of tourist attractions,the research methods of nearest-neighbor distance,connectivity,accessibility and closeness analysis are used to analyze road traffi c distribution between tourist attractions in Tai’an City.①The R value of the nearest-neighbor point is 0.27,which proves that tourist attractions in Tai’an City are in the state of clustering,and the spatial distance of tourist attractions in clustering area is small.②Theβindex andγindex of connectivity are 1.42 and 0.58,respectively,indicating that the traffi c network connectivity between tourist attractions is low,there is no dense traffi c network,and the optimal combination of tourism resources in tourist attractions is not high.③The accessibility index Ai is 37.68 km,indicating that the accessibility is low and the traffi c between tourist attractions is not perfect.The research results will provide the reference for scientifi c,systematic and objective comprehensive evaluation of existing A-class scenic areas and traffi c conditions in Tai’an City. | GAO Zhikang ZHAO Weijun LIU Xiaomei ZHANG Guanghe LV Zhenghui WU Sizheng QU Yunzan | 2020 | Journal of Landscape Research2020，12，6： | 0 |
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