1. Sandia National Laboratories,P.O. Box 5800,Electrical Science & Experiments Department,Albuquerque,NM,USA,87185-1152
2. Michigan Technological University,Mechanical Engineering-Engineering Mechanics, R.L. Smith Bldg 903, 1400 Townsend Drive,Houghton,MI,USA,49931
3. Michigan Technological University,Electrical and Computer Engineering, EERC Building 121, 1400 Townsend Drive,Houghton,MI,USA,49931