Institution: | Department of Civil Engineering, Oregon State University, Corvallis, Oregon 97331. [(503) 737–6838 (voice), (503) 737–3099 (fax), (e-mail).];Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon 97331.;Chevron Research and Technology Company, 100 Chevron Way, Richmond, California 94802. |