First Author:   Hyungkee Young Baek Nova Southeastern University hybaek@nova.edu   3301 College Ave Davie, 33314, United States   1-954-262-5103(Phone) 1-954-262-5103(Fax) Second Author: David D. Cho Nova Southeastern University dcho@nova.edu   3301 College Ave Davie, 33314, United States   19542625194(Phone)