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In this study, an iterative learning control (ILC) algorithm is proposed to improve synchronous errors in rigid tapping. In rigid tapping, the displacements of the z‐axis and spindle must be kept synchronous to prevent damage. Using learning control provides better commands for both the z‐axis and spindle dynamics, improving the synchronicity of the output responses of the z‐axis and spindle. The...
With the growing of Internet, voice over IP (VoIP) becomes more popular telephony application. VoIP is an Internet protocol, which is used for voice transmission over Internet. The main advantages of VoIP are low calling expense, low construction cost, easy scalability, and good voice quality. McAfee Labs pointed out that VoIP technology is still very progressive, but VoIP defense strategies are lagging...
Current group communication applications need to overcome inter-domain and heterogeneous multicast transport challenges. All-IP multicast over Internet is proposed to achieve the efficiency and transparency on IP multicast packet delivery not only for native IP multicast domains, but also for non-IP multicast supported domains. To guarantee the efficient IP multicast packet delivery over heterogeneous...
Based on the identification and emotion, volunteers participated regional affairs, expressed their enthusiasm and the execution to the local affairs. Compared to public, volunteers provided interpretation and the service of environmental protection; they still had to comprehend the importance of ecology better than the others and carried higher sensibility to the environment. Therefore, this research...
With rapid growth of broadband network deployment and multimedia streaming development, IP multicast networks soon become a delivery mechanism for real-time broadcasting television content. Unlike analog television broadcasting, IPTV is to provide two-way interactive service for viewers to access the selected program channel with high quality multimedia presentation and fast channel surfing capability...
With rapid development of wireless technologies, current user mobile devices can support to access various wireless networks such as Wi-Fi 802.11 Wireless LANs, 3G cellular networks, etc. Due to requirements of multicast mobility for multimedia services, the convergence of wired and wireless network has been a necessary trend in Next Generation Networks (NGN). The issues of multicast and mobility...
In this paper, we propose a centralized control and management (CCM) architecture to support PIM-SM multicast protocol in IP/MPLS network. With the integration of IP and MPLS multicast routing mechanism, we justify that CCM framework can improve multicast capabilities such as dynamic group management, control algorithm for multicast routing and resource reservation. Most current schemes for multicast...
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