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Accurately measurement of ion mobility behavior in transformer oil is critical for reasonable designing and safely operating HVDC transformers due to its electric field distribution determined by the ion migration in the oil. In this paper, we aim to investigate the effect of electrode configuration on the testing accuracy of ion mobility via the reversal polarity method. Both parallel plane electrode...
Asymptotic properties and strong consistency in the analysis of recursive estimation for stochastic regression models are important and fundamental. However, almost all of the existing results concerning the strong consistency of the least-squares estimates are established for non-explosive autoregressive models with exogenous inputs under the persistent excitation condition. In this paper, we establish...
With the primary gas gun, the dynamic properties of copper have been studied under high pressure. Hugoniot curve of metal materials have been obtained, which can be used to study the high-pressure equation of state. The parameters of the state equation has been obtained. The error of the experimental analysis results show that the experimental methods and results are credible.
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