1. Department
of Environmental Engineering, Kongju National University, 275 Budae-dong, Cheonan, Chungnam 331-717, Republic of Korea
2. Climate
Change Research Division, Korea Institute of Energy Research, 152
Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Korea
3. Department
of Energy and Resources Engineering, Korea Maritime and Ocean University, Busan 606-791, Republic of Korea