1. Graduate Student, School of Engineering, Univ. of Alaska, Anchorage, AK 99508.
2. Assoc. Professor, School of Engineering, Univ. of Alaska, Anchorage, AK 99508 (corresponding author).
3. Graduate Student, Dept. of Mechanical Engineering, Univ. of Houston, Houston, TX 77204-4006.
4. Professor, Dept. of Mechanical Engineering, Univ. of Houston, Houston, TX 77204-4006.
5. Research Associate, School of Engineering, Univ. of Alaska, Anchorage, AK 99508.