1. Professor, Dept. of Chemical Engineering, National Taiwan Univ. of Science and Technology, 43 Keelung Rd., Section 4, Taipei 106, Taiwan (corresponding author). E-mail: KU508@mail.ntust.edu.tw
2. Master, Dept. of Chemical Engineering, National Taiwan Univ. of Science and Technology, 43 Keelung Rd., Section 4, Taipei 106, Taiwan.
3. Ph.D. Candidate, Dept. of Chemical Engineering, National Taiwan Univ. of Science and Technology, 43 Keelung Rd., Section 4, Taipei 106, Taiwan.