a
Department of Chemical Engineering and Materials Science, Chung-Ang University, 221, Heukseok-dong, Dongjak-gu, Seoul, Korea (South)
E-mail: jong@cau.ac.kr
;
Fax: +82-2-824-3495
;
Tel: +82-2-816-5269
b
School of Mechanical Engineering, Chung-Ang University, 221, Heukseok-dong, Dongjak-gu, Seoul, Korea (South)