1. F. Zeng, J. Tang and X. Zhang, IEEE Trans. Dielectr. Electr. Insul., 24, 367 (2015).
2. S. H. Han, H. W. Park, T. H. Kim and D. W. Park, Clean Tech., 17, 250 (2011).
3. J. B. Kim and J. Y. Ryu, J. KSWM., 37, 546 (2020).
4. R. J. Van Brunt and J. T. Herron, IEEE Trans. Dielectr. Electr. Insul, 25, 75 (1990).
5. L. Qin, J. Han, G. Wang, H. J. Kim and I. Kawaguchi, Sci. Res. Conf. Environ. Pollut. Public Health, 126 (2010).