摘要:该文在分析流式视频传输原理的基础上,讨论了流式视频与注释相结合的网络点播学习系统的特点和功能,并提出了相应的系统模型。 关键词:视频点播;流式视频;注释;个性化学习 中图分类号:TP311文献标识码:A文章编号:1009-3044(2010)11-2734-02 The Design of Annotation for Video on Demand Learning System
A numerical study of the motion particulates follow along a circularly vibrating screen deck was done using the three dimensional Discrete Element Method (DEM).