GraduateSchool;
SchoolofMechanicalEngineering;
KyungpookNationalUniversity;
Daegu;
SouthKorea;
EngineeringTribologyResearchInstitute;
KyungpookNationalUniversity;
Daegu;
SouthKorea;
SchoolofMechanicalEngineering;
KyungpookNationalUniversity;
Daegu;
SouthKorea;