以VOCs的催化氧化为主题,利用Web of Science数据库对4654篇论文进行了数据处理,并通过文献计量学的方法分析了该主题的发展趋势与研究现状.结果表明,近25年期间,VOCs催化氧化相关课题的研究底蕴丰富,发展前景良好,年度发文数量呈指数...以VOCs的催化氧化为主题,利用Web of Science数据库对4654篇论文进行了数据处理,并通过文献计量学的方法分析了该主题的发展趋势与研究现状.结果表明,近25年期间,VOCs催化氧化相关课题的研究底蕴丰富,发展前景良好,年度发文数量呈指数型增长趋势.中国是世界上发表VOCs催化氧化为主题的论文最多的国家,占研究总量的34%;研究最深的机构和期刊分别是中国科学院大学(6.66%)和Applied Catalysis B-Environmental(11.68%);Chemistry和Engineering是最受欢迎的科目.此外,对近年来的研究热词分析表明,应用于VOCs催化氧化的催化剂中,最热门的元素是Mn,实验中最常见的VOCs类底物是甲苯.总结了常见的催化剂物质和VOCs底物,这反映了目前的主要研究方向,也为今后的研究提供了指导.展开更多
The 3D location and dipole orientation of light emitters provide essential information in many biological,chemical,and physical systems.Simultaneous acquisition of both information types typically requires pupil engin...The 3D location and dipole orientation of light emitters provide essential information in many biological,chemical,and physical systems.Simultaneous acquisition of both information types typically requires pupil engineering for 3D localization and dual-channel polarization splitting for orientation deduction.Here we report a geometric phase helical point spread function for simultaneously estimating the 3D position and dipole orientation of point emitters.It has a compact and simpler optical configuration compared to polarization-splitting techniques and yields achromatic phase modulation in contrast to pupil engineering based on dynamic phase,showing great potential for single-molecule orientation and localization microscopy.展开更多
文摘以VOCs的催化氧化为主题,利用Web of Science数据库对4654篇论文进行了数据处理,并通过文献计量学的方法分析了该主题的发展趋势与研究现状.结果表明,近25年期间,VOCs催化氧化相关课题的研究底蕴丰富,发展前景良好,年度发文数量呈指数型增长趋势.中国是世界上发表VOCs催化氧化为主题的论文最多的国家,占研究总量的34%;研究最深的机构和期刊分别是中国科学院大学(6.66%)和Applied Catalysis B-Environmental(11.68%);Chemistry和Engineering是最受欢迎的科目.此外,对近年来的研究热词分析表明,应用于VOCs催化氧化的催化剂中,最热门的元素是Mn,实验中最常见的VOCs类底物是甲苯.总结了常见的催化剂物质和VOCs底物,这反映了目前的主要研究方向,也为今后的研究提供了指导.
基金supported by the National Natural Science Foundation of China(Nos.62105368,62275268,and 62375284)the Science and Technology Innovation Program of Hunan Province(No.2023RC3010)。
文摘The 3D location and dipole orientation of light emitters provide essential information in many biological,chemical,and physical systems.Simultaneous acquisition of both information types typically requires pupil engineering for 3D localization and dual-channel polarization splitting for orientation deduction.Here we report a geometric phase helical point spread function for simultaneously estimating the 3D position and dipole orientation of point emitters.It has a compact and simpler optical configuration compared to polarization-splitting techniques and yields achromatic phase modulation in contrast to pupil engineering based on dynamic phase,showing great potential for single-molecule orientation and localization microscopy.
