1. Department of Chemistry, The University of Texas at Arlington, Arlington, Texas 76019
2. Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019
3. LTV, Dallas, Texas 75267
4. Department of Engineering, Arkansas State University, State University (Jonesboro), Arkansas 72467
5. Department of Computer Science, Mathematics and Physics, Arkansas State University, State University (Jonesboro), Arkansas 72467