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Li Chunyu
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《Geoscience Frontiers》 2025年第4期I0006-I0006,共1页
Li Chunyu(1904-1988),born in the Weihui City,Henan Province.He graduated from the Department of Geology at Peking University in 1928 and received his doctoral degree from the University of Berlin,Germany in 1937.He wa... Li Chunyu(1904-1988),born in the Weihui City,Henan Province.He graduated from the Department of Geology at Peking University in 1928 and received his doctoral degree from the University of Berlin,Germany in 1937.He was elected as an Academician of the Chinese Academy of Sciences in 1955.Li Chunyu was a renowned Chinese geologist and tectonist.He made significant contributions to the regional geological surveys,geological mapping,and mineral exploration in areas such as the Qinling Mountains,Sichuan Basin,and the Qinghai-Tibetan Plateau.Notably,he was the first to discover mélange in China and emerged as the leading figure advocating for the study of plate tectonic theory in the country. 展开更多
关键词 regional geological surveysgeological mappingand geological mapping Qinling Mountains mineral exploration regional geological surveys TECTONICS Sichuan Basin GEOLOGY
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Robinson-Ursescu定理在Frechet空间中的形成
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作者 过榴晓 丘京辉 《江南大学学报(自然科学版)》 CAS 2005年第5期541-544,共4页
由局部凸F-范空间中闭凸集值映射的性质,推导出Frechet空间上集值映射的Robinson-Ursescu定理、开映照与闭图定理形式.
关键词 FRECHET空间 凸集值映射 Robinson-Ursescu定理 开映照与闭图定理
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浅论促进地理信息产业健康发展的法治保障
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作者 王保立 《地理信息世界》 2013年第2期16-19,共4页
推进测绘地理信息依法行政对于促进地理信息产业健康发展具有保驾护航的重要作用。本文概述了我国测绘地理信息市场的发展形势,分析了制约地理信息产业健康发展所面临的主要问题和挑战,提出了规范市场秩序、优化发展环境的重点任务和促... 推进测绘地理信息依法行政对于促进地理信息产业健康发展具有保驾护航的重要作用。本文概述了我国测绘地理信息市场的发展形势,分析了制约地理信息产业健康发展所面临的主要问题和挑战,提出了规范市场秩序、优化发展环境的重点任务和促进地理信息产业做大做强的保障服务措施。 展开更多
关键词 测绘地理信息 依法行政 行业管理
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Revolutionizing Tissue Clearing and 3-Dimensional Imaging:Transparent Embedding Solvent System for Uniform High-Resolution Imaging
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作者 Yating Yi Hu Zhao 《Biomedical Engineering Frontiers》 2025年第1期583-587,共5页
Combining transparent embedding with sectioning is likely to be the future direction for tissue clearing and 3-dimensional(3D)imaging.A newly published transparent embedding system,TESOS(Transparent Embedding Solvent ... Combining transparent embedding with sectioning is likely to be the future direction for tissue clearing and 3-dimensional(3D)imaging.A newly published transparent embedding system,TESOS(Transparent Embedding Solvent System),ensures consistent submicron resolution imaging throughout the entire sample,and can be compatible with different microscopy systems.This method shows great potential in connectome mapping,and might be an optimal option for future 3D multiplex immunofluorescence and RNA in situ hybridization imaging.Additional efforts would be needed to innovate labeling,imaging,and data processing strategies to fully utilize the potential of transparent embedding systems in highresolution imaging of large-scale samples. 展开更多
关键词 rna situ hybridizat connectome mappingand microscopy systemsthis tissue clearing submicron resolution imaging d multiplex immunofluorescence embedding solvent system ensures transparent embedding
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