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Based on the continuity equation, the dynamic equation of the pump valve and the compressibility of the emulsion, the kinematics models of the pump valve in normal and valve spring abruption condition are established. The simulation results show that the loss of volumetric efficiency is inevitable because of the opening and closing hysteresis characteristic of the pump valve caused by the Westphal's...
When the residual of model did not agree with normal distribution or included abnormal data because of the intensive disturbed noise, the Lipschitz exponents calculated with the least square method would generate obvious deviation. In order to improve the robustness and the efficiency of the algorithm of the Lipschitz exponents of the wavelet singularity analysis, the weight function based on the...
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