Jung Min Sohn, Ph.D. Department of Mineral Resources & Energy Engineering, Chonbuk National University 664-14, Duckjin-dong, Duckjin-gu, Jeonju, Jeonnbuk 561-756, Korea (Tel) 82-63-270-2361, (Fax) 82-63-270-2366 jmsohn@chonbuk.ac.kr , jmsohnrnd@yahoo.co.kr   Soo Ho Kim, Mr. Center for Ultramicrochemical Process Systems (CUPS), KAIST 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Korea (Tel) 82-42-869-3958, 8891, (Fax) 82-42-869-8890 soohokim@kaist.ac.kr