针对内容中心网络(Content-centric Network,CCN)中现有的缓存替换策略考虑问题单一,直接删除替换内容的不足,提出一种基于通告转移机制(Notification Transfer Mechanism,NTM)的CCN网络缓存替换策略。结合动态内容流行度、缓存代价以...针对内容中心网络(Content-centric Network,CCN)中现有的缓存替换策略考虑问题单一,直接删除替换内容的不足,提出一种基于通告转移机制(Notification Transfer Mechanism,NTM)的CCN网络缓存替换策略。结合动态内容流行度、缓存代价以及时间因子求取内容缓存价值(Content Storage Value,CSV)。依据CSV值判定缓存替换内容,同时建立请求-响应的活动路径,替换内容沿活动路径存储在适合的节点,便于域内网络用户再次请求。仿真实验表明,相对于已有的几种缓存替换算法,该算法能够有效地提高CCN网络平均缓存命中率,降低路由平均请求跳数。展开更多
Rheological behavior of this article presents rapeseed oil. Dynamic viscosity of rapeseed oil was determined at temperatures between 40 ℃-90 ℃ and shear rates ranging from 3.3-120 s1. All types of oils studied Bingh...Rheological behavior of this article presents rapeseed oil. Dynamic viscosity of rapeseed oil was determined at temperatures between 40 ℃-90 ℃ and shear rates ranging from 3.3-120 s1. All types of oils studied Bingham fluid behavior in the temperature range from 313-363 K. Correlation coefficients have similar values to one for all oils studied.展开更多
文摘Rheological behavior of this article presents rapeseed oil. Dynamic viscosity of rapeseed oil was determined at temperatures between 40 ℃-90 ℃ and shear rates ranging from 3.3-120 s1. All types of oils studied Bingham fluid behavior in the temperature range from 313-363 K. Correlation coefficients have similar values to one for all oils studied.