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| | The inversion of seismic surface wave dispersion is one of the important methods for exploring the structure of the earth's interior, in this paper, problems on inversion calculation are discussed in detail and the upper crustal structure of Qinghai area is inversed by using the information of Gansu Seismic network. | | 利用地震面波频散反演,是探测地球内部结构的重要手段之一。本文详细地讨论了面波频散反演计算中的具体问题,并利用甘肃台网资料反演出青海地区上地壳模型。 | | 文摘来源 | | It is studied that size of the area of region for calculating modulated small earthquake ratio using earthquake catalogue recorded by Gansu seismic network since 1988.Modulated small earthquake ratio is calculated respectively in five regions chosen in Gansu Province and its vicinity.Results show that an appliable minimum area is 6 square degree. | | 利用甘肃省地震台网1988年以来的地震目录,对计算小震调制比的区域面积选取作了研究,发现存在一个适用的最小面积,其大小约为6个平方度. | | 文摘来源 | | The technological scheme and design method of building Security Firewall of Gansu Seismic Information Network through Netfilter/iptablestechniques are introduced.The firewall disposition script of this system is completely showed,and the implementation strategy of every function is detailedly explained.Finally,the advantages and disvantages of netfilter/iptables techniques are objectively analyzed. | | 介绍了应用netfilter/iptables技术构建甘肃地震信息网络安全防火墙的技术方案和设计思想。较完整地给出了甘肃地震信息网的防火墙配置脚本,并对每个功能的实现策略作了详尽的解释。客观地分析了netfilter/iptables技术的优点和不足。 | | 文摘来源 | |   | | << 更多相关文摘 |
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