排序方式： 共有69条查询结果，搜索用时 0 毫秒
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笔者曾于《华东铀矿地质》(2003．1期)上撰写了“浅谈南方老区铀矿资源潜力评价中的物探工作”一文。最近，又有机会同年轻同行一起参与此类项目的成果报告编写工作，期间，年轻的同行们围绕着物探工作提出了这样那样的问题。笔者深为他们好学上进的精神所感动，故以对话的形式再次撰写“再谈南方老区铀资源潜力评价中的物探工作”。作为与年轻同行的再次业务交流吧。 相似文献
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广东省基础地理信息数据库设计的关键技术 总被引：1，自引：0，他引：1
介绍广东省基础地理信息数据库设计的关键技术，包括软、硬件及网络环境、系统体系结构、系统运行模式、数据库的组织结构、系统的功能等方面的技术，为同行业的数据库建设提供参考。 相似文献
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男女学生在地理学习中有何差异，差异何在，笔者经过一年多来调查研究、观测统计，掌握一些资料，並提出一些浅见以便和同行们商榷。 相似文献
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《极地研究(英文版)》2012,23(2):F0003-F0003
1 Aims and Scope
Advances in Polar Science （APS） is an international, peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration. APS is a comprehensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research. Its primary purpose is to publish achievements in fundamental research, applied research and high-tech research focused or based on the polar regions, and to report the latest discoveries, inventions theories and methodologies in polar research. The scope of the journal covers a range of disciplines including polar glaciology, polar oceanography, polar atmospheric science, polar space physics, polar geology, polar geophysics, polar geochemistry, polar biology and ecology, polar medicine, Antarctic astronomy, polar environment observation, polar engineering as well as polar information service and management. 相似文献
Advances in Polar Science （APS） is an international, peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration. APS is a comprehensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research. Its primary purpose is to publish achievements in fundamental research, applied research and high-tech research focused or based on the polar regions, and to report the latest discoveries, inventions theories and methodologies in polar research. The scope of the journal covers a range of disciplines including polar glaciology, polar oceanography, polar atmospheric science, polar space physics, polar geology, polar geophysics, polar geochemistry, polar biology and ecology, polar medicine, Antarctic astronomy, polar environment observation, polar engineering as well as polar information service and management. 相似文献
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《极地研究(英文版)》2012,23(1):F0003-F0003
Advances in Polar Science （APS） is an international, peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration. APS is a comprehensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research. 相似文献
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采用激光诱导荧光技术(laser induced fluorescence-LIF)对同向流动环境中具有不同喷口高宽比(aspect ratio-AR)、射流比(velocity ratio-VR)的椭圆喷口射流与圆喷口射流的标量物质浓度场进行可视化和定量化研究。系统研究了同向流动环境中椭圆喷口射流浓度场的各种掺混稀释特性:中心线稀释度,射流扩展宽度,下游不同断面上的时均浓度分布和紊动强度分布。采用紊流理论和量纲分析方法对实验数据进行分析讨论,给出同向流动环境中受动量控制的椭圆射流稀释度预报方法,提出该类椭圆射流稀释度预报方法归并到已有圆射流系列预报模型中的实现途径,比较了具有相同出口超值动量Me0的圆射流与椭圆射流的沿程稀释度变化。由于椭圆射流比圆射流具有更高的稀释度增长比率,说明椭圆射流比圆射流具有更好的掺混稀释效果。 相似文献