1. Mechanical EngineeringPukyong National University Busan Republic of Korea
2. Institute of Economic ResearchKyoto University Kyoto Japan
3. Department of Materials Science and EngineeringPukyong National University Busan Republic of Korea
4. Department of Chemical EngineeringWollo University Kombolcha Ethiopia
5. Greenhouse Gas LaboratoryKorea Institute of Energy Research Daejeon Republic of Korea