Drilling fluid for Dome F Project in Antarctica

LDepartment ofApt)lied Plysics, thcutc), ofEngineering, Hbkkoido U}tiversity, Kita-13, Nishi-8, Kita-ku, Sxpporo 060 :institute ofLow Tlemperature Sbience, Hbkkaido Lbeiver:sity, Kita-19, ?Vishi-8, Kita-ku, kpporo 060 ]Department ofA`techanical Ehgineering, ?VLrguoha Uitivensity of 1lechnotqgy, Kbmitomioko-cho, IVtrgaeko 940-21 `thtionat institute ofPolarResearch, 9-1O Ktzga i-chome, ftabashi-ku, Tblya 173