1. Old Dominion University,Electrical Engineering Technology,Norfolk,VA,USA
2. University of Stavanger,Department of Electrical Engineering and Computer Science,Rogaland,Norway
3. Electrical and Computer Engineering, Virginia Commonwealth University,Richmond,VA,USA
4. Norwegian University of Science and Technology,Department of Electric Power Engineering,Trondheim,Norway
5. eKare, Inc.,Fairfax,VA,USA