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Vortex and unstability of bending boring bar caused by cutting fluid force are researched, with Timoshenko beam model and mated vibration model, based on which machining quality of BTA deep hole drilling and tools life can be promoted in practice. Linear equations of fluid force on boring bar is established first, stiffness coefficient and damping coefficient are gotten with Leono equation of unstable...
Single action segmentation is very important for the application of motion capture technique in many domains. In this paper, we propose an unsupervised approach to segment single actions from continuous captured motion sequences. The proposed method works by firstly finding the underlying structure of the input motion sequence. Consequently a point cloud of pairwise posture similarity matrix is constructed...
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