Department of Mechanical Engineering;
Pukyong National University;
Busan;
Korea;
Department of R & D;
Newmarine Engineering co.;
Ltd.;
Busan;
Korea;
Department of Electric Energy;
Dongwon Science and Technology University;
Busan;
Korea;
Polymer Buoy; Polyethylene Float; Weight Reduction; Structure Analysis; Stability Evaluation;