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As the number of simultaneously active groups increases, IP multicast suffers from scalability problem. In backbone networks, the state scalability problem is even more serious. In this paper, we propose a novel scheme, called AMBTS, which uses the concept of aggregated mul-ticast, and employs tree splitting before aggregating. We design an algorithm to(More)
The integration is a crucial step to improve visual design and analysis management in the product development process. The CAx/PDM information management and integration was analyzed to build a special-purpose project platform. It was used in digital design for swinging angle milling head. Using the integrated structure of PDM and CAx, the platform is able(More)
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