Preface.
Department of Biological and Chemical Engineering, Faculty of Engineering, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma, 376-8515, Japan, enomoto@bce.gunma-u.ac.jp.
Atsushi
A
Enomoto
Masaya
M
Nagao
Sanetaka
S
Shirahata