采用Web of Science核心合集数据库和中国知网数据库(CNKI)获得文献数据,运用文献计量学方法和CiteSpace(6.2.R4)、VOSviewer(版本号1.6.19)软件,以辐射敏感基因检测作为生物剂量计的研究主题在文献、作者、机构、期刊等方面进行分析。...采用Web of Science核心合集数据库和中国知网数据库(CNKI)获得文献数据,运用文献计量学方法和CiteSpace(6.2.R4)、VOSviewer(版本号1.6.19)软件,以辐射敏感基因检测作为生物剂量计的研究主题在文献、作者、机构、期刊等方面进行分析。WOS数据库结果显示,2000—2023年,在辐射敏感基因检测作为生物剂量计研究主题的文献总量从3篇增长到297篇;美国是这个领域中研究比较活跃的国家,中国发文量排世界第7;Radiation Research,International Journal of Radiation Biology,Scientific Reports,Health Physics等是该研究主题的重要学术期刊同时也有较高的共被引频次;关键词聚类反映出该领域主要研究方向为DNA损伤-修复、细胞凋亡、p53信号通路、体内-体外试验、生物剂量计模型。共被引文献显示基因FDXR作为生物剂量计的研究是最近引用量最多的文献,也是该领域研究热点。CNKI数据库结果分析显示单个基因(MDM2、GADD45、XPC、FDXR、HPRT)剂量-效应关系研究是国内该领域主要研究方向。同时提示基因集群检查为基因检测作为生物剂量计未来研究方向。展开更多
以石槽村煤矿宝塔山砂岩含水层为工程背景,构建了含水层三维可视化模型,通过单孔、多孔非稳定流模型对该可视化模型进行验证,并对顶板泄水点位置反演预估。结果表明:采区顶板群孔非稳定流模型数据与观测孔放水实测数据拟合性好,模型可...以石槽村煤矿宝塔山砂岩含水层为工程背景,构建了含水层三维可视化模型,通过单孔、多孔非稳定流模型对该可视化模型进行验证,并对顶板泄水点位置反演预估。结果表明:采区顶板群孔非稳定流模型数据与观测孔放水实测数据拟合性好,模型可信度高;含水层数值重构最优解为6个分区,即Ⅰ高渗中储水区、Ⅱ中渗高储水区、Ⅲ高渗高储水区、Ⅳ低渗中储水区、Ⅴ低渗低储水区、Ⅵ中渗中储水区;井下泄水点位置在G1-1观测点和F1-3观测点之间,泄水量为150~200 m 3/d。展开更多
At present,China is facing new strategic opportunities as well as risks and challenges in its development.Faced with the challenges brought by current global major risks,China urgently needs to build a group of world-...At present,China is facing new strategic opportunities as well as risks and challenges in its development.Faced with the challenges brought by current global major risks,China urgently needs to build a group of world-class enterprises as ballast stones.Accelerating the development of a number of world-class enterprises is an important support for China to enhance its comprehensive strength and international competitiveness,and is crucial for the realization of the strategic blueprint for socialist modernization.After more than forty years of reform and opening up,Chinese enterprises have rapidly developed and grown stronger,with their position rising and their influence in the global market increasing continuously.However,Chinese enterprises are“large in size but not yet strong enough”.In this context,this paper systematically analyzes the practical significance and theoretical connotation of building world-class enterprises and the status quo of building world-class enterprises in China and takes CNOOC as an example to deeply analyze the practices of large central enterprises to build world-class enterprises at the levels of group and subsidiaries,providing a reference for Chinese enterprises to accelerate their progress towards world-class enterprises.展开更多
文摘采用Web of Science核心合集数据库和中国知网数据库(CNKI)获得文献数据,运用文献计量学方法和CiteSpace(6.2.R4)、VOSviewer(版本号1.6.19)软件,以辐射敏感基因检测作为生物剂量计的研究主题在文献、作者、机构、期刊等方面进行分析。WOS数据库结果显示,2000—2023年,在辐射敏感基因检测作为生物剂量计研究主题的文献总量从3篇增长到297篇;美国是这个领域中研究比较活跃的国家,中国发文量排世界第7;Radiation Research,International Journal of Radiation Biology,Scientific Reports,Health Physics等是该研究主题的重要学术期刊同时也有较高的共被引频次;关键词聚类反映出该领域主要研究方向为DNA损伤-修复、细胞凋亡、p53信号通路、体内-体外试验、生物剂量计模型。共被引文献显示基因FDXR作为生物剂量计的研究是最近引用量最多的文献,也是该领域研究热点。CNKI数据库结果分析显示单个基因(MDM2、GADD45、XPC、FDXR、HPRT)剂量-效应关系研究是国内该领域主要研究方向。同时提示基因集群检查为基因检测作为生物剂量计未来研究方向。
文摘以石槽村煤矿宝塔山砂岩含水层为工程背景,构建了含水层三维可视化模型,通过单孔、多孔非稳定流模型对该可视化模型进行验证,并对顶板泄水点位置反演预估。结果表明:采区顶板群孔非稳定流模型数据与观测孔放水实测数据拟合性好,模型可信度高;含水层数值重构最优解为6个分区,即Ⅰ高渗中储水区、Ⅱ中渗高储水区、Ⅲ高渗高储水区、Ⅳ低渗中储水区、Ⅴ低渗低储水区、Ⅵ中渗中储水区;井下泄水点位置在G1-1观测点和F1-3观测点之间,泄水量为150~200 m 3/d。
文摘At present,China is facing new strategic opportunities as well as risks and challenges in its development.Faced with the challenges brought by current global major risks,China urgently needs to build a group of world-class enterprises as ballast stones.Accelerating the development of a number of world-class enterprises is an important support for China to enhance its comprehensive strength and international competitiveness,and is crucial for the realization of the strategic blueprint for socialist modernization.After more than forty years of reform and opening up,Chinese enterprises have rapidly developed and grown stronger,with their position rising and their influence in the global market increasing continuously.However,Chinese enterprises are“large in size but not yet strong enough”.In this context,this paper systematically analyzes the practical significance and theoretical connotation of building world-class enterprises and the status quo of building world-class enterprises in China and takes CNOOC as an example to deeply analyze the practices of large central enterprises to build world-class enterprises at the levels of group and subsidiaries,providing a reference for Chinese enterprises to accelerate their progress towards world-class enterprises.