$B66IZ$G$9(B $B!!I%ED$5$s!"%U%8%?%/$5$s!!(B $B!!%*%U?H$G$O6=L#$"$kOC$rJ9$+$;$F$$$?$@$$$F!!M-Fq$&$4$6$$$^$9(B $B!!LLGr$+$C$?$G$9(B $B!!$^$?!!$d$j$^$7$g$&(B $B!!5JCc%`%D%_F2!!$N!!%V%i%C%/%j%9%H$K:\$C$?;v!!4V0c$J$7$G$9$M(B $B!!(B ---- $B66IZ6=@k(B o-hashitomi@iae.kyoto-u.ac.jp