Bai Wei, male, born in 1977, PhD. His research interest include the analysis of dielectric spectra of biological ceils and its application in biophysics and biochemistry field. To whom correspondence should be addressed. E-mail: zhaoks@ bnu. edu. cn Zhao Kongshuang, male, born in 1955, PhD, Professor of Beijing Normal University. His research field include the analysis for dielectic relaxation spectroscopy on the biological and heterogeneous systems.