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For the 126kV DC vacuum circuit breakers (VCBs) with multi-breaks, the continuous transition model, metal vapor and ion density are introduced to describe the dynamic mathematical model of dielectric recovery with intermediate frequency vacuum arcs. During the breaking process, the numerical simulation is employed to obtain the thickness of the sheath and the curves of the dielectric recovery strength...
Objective: To compare the signals of pulse-diagnosis of 2 kinds of liver disease patients: Fatty Liver Disease (FLD) and Cirrhosis. Methods: After collecting the pulse waves of patients with Fatty Liver, Cirrhosis, we do pretreatment, parameter extracting basing on harmonic fitting, modeling, and identification by unsupervised learning and supervised learning with cross-validation step by step for...
Objective: To build a viable method to analyze the Pulse-diagnosis signals by the combination of unsupervised learning and supervised learning. Methods: After collecting the pulse waves of patients with chronic obstructive pulmonary disease (COPD) and healthy volunteers, we do pretreatment, parameter extracting basing on harmonic fitting, modeling, and identification by unsupervised learning Principal...
Objective: To study the features in the pulse waves of women during pregnancy. Methods: To collect the pulse waves of pregnant women in different stage and compare them with normal women's. We choose continuous cycles waves with different period length and then do the LSQ regression by 12 harmonics fitting to build mathematical model and extract 193 parameters after pretreatment, then do classification...
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