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Conventional researches on QoS provisioning in HFC networks have focused mainly on the upstream channels. However, due to changing network usage patterns, the provisioned capacity for downstream service flows is no longer sufficient. To provide QoS for downstream VoIP service flows in HFC networks, an adaptive committed information rate allocation algorithm is proposed. Given the maximum sustained...
In this paper, research results for improvement of tracking performance of servo-hydraulic shaking table are presented. Servo-hydraulic shaking table system is totally nonlinear due to the nonlinear flow property in a cylinder by actuation of servo valve. And it is demanded for the shaking table system to track arbitrary trajectories up to high frequency even at the extreme situations such as substantial...
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