1. Asst. Prof. of Civ. Engrg., South Dakota School of Mines and Tech., Rapid City, S.Dak.
2. Lect. of Civ. Engrg., Regional Engrg. Coll., Orissa State, India; formerly, Grad. Student, Dept. of Geological Engrg., South Dakota School of Mines and Tech., Rapid City, S.Dak.