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Loss in terms of windage and bearing friction is an important origin of inertia error to be compensated in brake dynamometer testing, acquisition of which has always been a troublesome problem. An indirect method of loss measurement using speed data under null pipeline pressure is described in this paper. Mathematical model of resistance torque or energy loss is calculated by regression of collected...
With a micropump, the release rate of drug delivery is able to be controlled easily to maintain the therapeutic efficacy. A high-performance piezoelectric cantilever-valve micropump was investigated for this purpose. The effect of valves on the output performance of the PZT micropump was analyzed at first. With taking into account the influence of liquid added mass and added damping on the natural...
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