1. Dept. of Civil Engineering, Univ. of Colorado, Boulder, CO 80301 (corresponding author).
2. Independent Consultant; formerly, Research Associate, Dept. of Civil Engineering, Univ. of Colorado, Boulder, CO 80301.
3. Patent Examiner, Korean Intellectural Property Office, South Korea; formerly, Graduate Research Assistant, Dept. of Civil Engineering, Univ. of Colorado, Boulder, CO 80301.
4. Dept. of Civil Engineering, Univ. of Texas, Austin, TX 78712.