We obtained several displacement time series from the Sichuan permanent GPS net and processed the 1-Hz data observed during a few days before the 2008 Ms8.0 Wenchuan earthquake by double-difference instantaneous posit...We obtained several displacement time series from the Sichuan permanent GPS net and processed the 1-Hz data observed during a few days before the 2008 Ms8.0 Wenchuan earthquake by double-difference instantaneous positioning technique. We filtered the data by the spatial stacking and the modified sidereal filte- ring methods to reduce correlation bias in space and time. The results indicate that these methods can improve the precision significantly.展开更多
广东电信宽带SDP边缘接入产品,是一个基于零信任网络接入模型构建的云办公安全访问解决方案。方案采用了软件定义边界(Software Defined Perimeter)的安全框架,通过在泛在宽带网络中构建叠加虚拟网络(Overlay Network)的方式,重建以身...广东电信宽带SDP边缘接入产品,是一个基于零信任网络接入模型构建的云办公安全访问解决方案。方案采用了软件定义边界(Software Defined Perimeter)的安全框架,通过在泛在宽带网络中构建叠加虚拟网络(Overlay Network)的方式,重建以身份为中心的零信任安全体系,其主要目标是满足中小型企业快速搭建安全访问云办公网络的需求,解决企业传统模式的资源统一管理难、分级管控难、安全能力不足、效率低下等问题,实现企业当前无边界网络下的安全需求,为客户提供按需、动态的可信访问。展开更多
基金supported by the National Natural Science Foundation of China(40974012)the Special Foundation for Seismic Research(200808080)the Director Foundation of Institute of Seismology,China Earthquake Administration(IS201156063)
文摘We obtained several displacement time series from the Sichuan permanent GPS net and processed the 1-Hz data observed during a few days before the 2008 Ms8.0 Wenchuan earthquake by double-difference instantaneous positioning technique. We filtered the data by the spatial stacking and the modified sidereal filte- ring methods to reduce correlation bias in space and time. The results indicate that these methods can improve the precision significantly.
文摘广东电信宽带SDP边缘接入产品,是一个基于零信任网络接入模型构建的云办公安全访问解决方案。方案采用了软件定义边界(Software Defined Perimeter)的安全框架,通过在泛在宽带网络中构建叠加虚拟网络(Overlay Network)的方式,重建以身份为中心的零信任安全体系,其主要目标是满足中小型企业快速搭建安全访问云办公网络的需求,解决企业传统模式的资源统一管理难、分级管控难、安全能力不足、效率低下等问题,实现企业当前无边界网络下的安全需求,为客户提供按需、动态的可信访问。