Bong-Ju Leea, Youn-Saup Yoonb and Myung-Bok Leec,*
aDepartment of Physics, Chosun University, Gwangju 61452, Korea
bDivision of Electrical and Electronic Engineering, Gwangju University, Gwangju 61743, Korea
cDivision of Mechanical and Metallic Mold Engineering, Gwangju University, Gwangju 61743, Korea
This Article2019; 20(4): 418-423
Published on Aug 31, 2019
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