H.T. Chua - National University of Singapore
K.C. Ng - Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 117576, Singapore
A. Malek - National University of Singapore
T. Kashiwagi - Tokyo University of Agriculture and Technology
A. Akisawa - Tokyo University of Agriculture and Technology
B.B. Saha - Tokyo University of Agriculture and Technology