6W j Kim, K Ji, A Ambike. Real-Time Operating Environment for Networked Control Systems [J]. IEEE Transactions on Automation Science and Engineering (S1545-5955), 2006, 3(3): 287-296.
7Tipsuwan Y, Chow M Y. Control Methodologies in Networked Control System [J]. Control Engineering Practice (S0967-0661), 2003, 11(10): 1099-1111.
8Li Jiang, Xiong-long Feng. Design and Application of Intelligent Virtual Reality System [R]. Artificial Reality and Telexistence-Workshops, 2006, ICAT'06, 16^th Intemational Conterence on. Istanbul: Computer Society, 2006: 89-92.
9Muirhead, B. , & Juwah, C. Interactivity in computer--mediated college and university education: A recent review of the literature[J]. Educational Technology & Society, 2004, (1).
10Hirumi, A. The design and sequencing of E--learning interactions:A grounded approach[J]. International Journal on Elearning, 2002, (1).