1. Korea Advanced Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu Daejeon 305-353, Korea
2. Idaho National Laboratory, P.O. Box 1625, MS 3840, Idaho Falls, Idaho 83415
3. CEA-Cadarache, 13108 St. Paul lez Durance, France
4. Institute for Energy Technology, P.O. Box 173, N-1751 Halden, Norway