1. Department of Mechanical EngineeringThe University of Texas at Austin204 E. Dean Keeton Street, Stop C2200AustinTX78712USA
2. SAITSamsung Electronics, San 14‐1 NongseoGyeonggiYongin446‐712Republic of Korea
3. Department of PhysicsHankuk University of Foreign LanguageSan 89 WangsanGyeonggiYongin449‐791Republic of Korea