1. Postdoctoral Research Associate, Agricultural and Biological Engineering Dept., Univ. of Florida, Rogers Hall, P.O. Box 110570, Gainesville, FL 32611 (corresponding author).
2. Professor, Agricultural and Biological Engineering Dept., Univ. of Florida, Rogers Hall, P.O. Box 110570, Gainesville, FL 32611.
3. Distinguished Professor, Agricultural and Biological Engineering Dept., Univ. of Florida, Rogers Hall, P.O. Box 110570, Gainesville, FL 32611.