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This paper proposes a cross-layer optimization method for video streaming over Wireless Multimedia Sensor Networks (WMSNs). It is based on an algorithm that dynamically maps MPEG-4 video packets to 802.11s appropriate access categories. In 802.11s mesh networks, packets are differentiated and higher priorities are given to forward packets. When queue length of AC2 fills up, forward packets are remapped...
Skid-steered mobile robots are widely used because of the simplicity of mechanism and high reliability. However, understanding of the kinematics and dynamics of such a robotic platform is challenging due to the complex wheel/ground interactions and kinematic constraints. In this paper, we attempt to develop a kinematic and dynamic modeling scheme to analyze the skid-steered mobile robot. We model...
Two transformer-based laminated core models are proposed and prototyped for determining the exciting power (or/and specific total iron loss) occurred at the joints and the silicon steel lamination, and some measured and calculated results are presented in the paper. The product-level models also can be used to investigate the over-saturation and the relevant electromagnetic behavior of power transformer...
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