1. Graduate research assistant, Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, SD.
2. Agricultural and Bioprocess Engineer, USDA-ARS, North Central Agricultural Research Laboratory, Brookings, SD. Mention of a trade name, propriety product or specific equipment does not constitute a guarantee or warranty by the United States Department of Agriculture and does not imply approval of a product to the exclusion of others that may be suitable.
3. Corresponding author. Phone: 604-693-3241. Fax: 605-693-5240. E-mail address: krosentr@ngirl.ars.usda.gov
4. Professor, Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, SD.