1. 1Presenter and corresponding author. Hankook Tire Company Ltd., Research and Development Center, 23-1 Jang-dong, Yuseong-gu, Daejeon 305-725, Republic of Korea. E-mail: spingks@hankooktire.com
2. 2Hankook Tire Company Ltd., Research and Development Center, 23-1 Jang-dong, Yuseong-gu, Daejeon 305-725, Republic of Korea. E-mail: bcjung@hankooktire.com