1. Professor, Engineering Dept., Nova Scotia Agricultural College, P.O. Box 550, Truro, Nova Scotia, Canada B2N 5E3.
2. Assistant Professor, Dept. of Process Engineering and Applied Science, Dalhousie Univ., 1360 Barrington St., Halifax, Nova Scotia, Canada B3J 1Z1 (corresponding author). E-mail: jamiesrc@dal.ca
3. Research Associate, Engineering Dept., Nova Scotia Agricultural College, P.O. Box 550, Truro, Nova Scotia, Canada B2N 5E3.
4. Graduate Student, Dept. of Process Engineering and Applied Science, Dalhousie Univ., 1360 Barrington St., Halifax, Nova Scotia, Canada B3J 1Z1.
5. Associate Professor, Engineering Dept., Nova Scotia Agricultural College, P.O. Box 550, Truro, Nova Scotia, Canada B2N 5E3.