The effective disposal of daily city infrastructure cases is an important issue for urban management. To more effectively utilize a large amount of historical cases data collected and accumulated in the urban grid man...The effective disposal of daily city infrastructure cases is an important issue for urban management. To more effectively utilize a large amount of historical cases data collected and accumulated in the urban grid management system, and to analyze their spatial distribution pattern information for city managers, this study used the comparative kernel density analysis method in two types of cases (i.e. power facilities and traffic guardrail) in Xicheng District, Beijing for the year 2016 and 2017. This research analyzes them at different scales (300 m, 600 m, 1,200 m), and the experiment results show that the method of comparative kernel density analysis is able to provide an intuitively spatial visualization distribution analysis of city infrastructure related cases. The quantitative information of spatial agglomeration degree is helpful for city managers making decision.展开更多
近年来,由于网络和移动技术的推动,公民科学得到了迅速的发展和普及。公民参与科学项目成为科学研究的新趋势,对于提升公民科学素养、推动公民教育有着重要意义。基于Web of Science核心合集数据库,利用WOS对2000—2019年国外公民科学...近年来,由于网络和移动技术的推动,公民科学得到了迅速的发展和普及。公民参与科学项目成为科学研究的新趋势,对于提升公民科学素养、推动公民教育有着重要意义。基于Web of Science核心合集数据库,利用WOS对2000—2019年国外公民科学项目案例的年发文数量、学科类别进行基础分析,同时使用可视化软件CiteSpace绘制知识图谱,对研究机构发文量、作者、被引文献、关键词聚类进行分析,并在此基础上指出案例特点。最后,从研究领域、机构平台及公民参与度等方面对未来我国公民科学项目案例研究提出建议。展开更多
文摘The effective disposal of daily city infrastructure cases is an important issue for urban management. To more effectively utilize a large amount of historical cases data collected and accumulated in the urban grid management system, and to analyze their spatial distribution pattern information for city managers, this study used the comparative kernel density analysis method in two types of cases (i.e. power facilities and traffic guardrail) in Xicheng District, Beijing for the year 2016 and 2017. This research analyzes them at different scales (300 m, 600 m, 1,200 m), and the experiment results show that the method of comparative kernel density analysis is able to provide an intuitively spatial visualization distribution analysis of city infrastructure related cases. The quantitative information of spatial agglomeration degree is helpful for city managers making decision.
文摘近年来,由于网络和移动技术的推动,公民科学得到了迅速的发展和普及。公民参与科学项目成为科学研究的新趋势,对于提升公民科学素养、推动公民教育有着重要意义。基于Web of Science核心合集数据库,利用WOS对2000—2019年国外公民科学项目案例的年发文数量、学科类别进行基础分析,同时使用可视化软件CiteSpace绘制知识图谱,对研究机构发文量、作者、被引文献、关键词聚类进行分析,并在此基础上指出案例特点。最后,从研究领域、机构平台及公民参与度等方面对未来我国公民科学项目案例研究提出建议。