$B6&F18&5fJs9p=q(B


$B8&5f6hJ,(B $B0lHL8&5f(B

$B8&5f2]Bj(B

$B%l!<%@%G!<%?F12=$K$h$k%5%O%j%sBP1~L}I:N.M=B,%7%9%F%`$N@:EY8~>e$K4X$9$k8&5f(B
$B8&5fBeI= $BN)@5Bg3XCO5e4D6-2J3XIt(B
$B8&5fBeI=(B $B65
$B8&5fBeI=(B $B8eF#??B@O:(B

$B8&5fJ,C4!?=jB0!??&L>(B
$B!!(B
$B;a!!!!L>(B
$B=j!!!!B0(B
$B?&!!!!L>(B

1

$B5\EDBgJe(B $BN)@5Bg3XCO5e4D6-2J3XIt(B $B=u

2

$BGr_7K.CK(B $BKLBgDc298&(B $B=u65

$B8&5fL\E*(B $BKLBgJ]M-$NN.I9%l!<%@$d3$MN%l!<%@!"%*%[!<%D%/N.I98&5f%;%s%?!<4QB,Ec20>e$K@_CV$5$l$F$$$kA%Gu%l!<%@$N%l!<%@2hA|$+$i!"%j%"%k%?%$%`$K99?7$5$l$k3$N.%G!<%?$r?dDj$7!"$=$N%G!<%?$G3$N.%7%_%e%l!<%7%g%s$K$h$j?dDj$5$l$k3$N.J,I[$rJd@5$7!"L}I:N.%7%_%e%l!<%7%g%s$N@:EY$r8~>e$5$;$k$3$H$rL\E*$H$9$k!#4pK\$H$J$k%7%_%e%l!<%7%g%s$K$D$$$F$O!"%J%[%H%+;v8N$K$*$1$kI:Ce%G!<%?$K$h$j8!>Z$r7P$F!"F|K\3$(B-$B%*%[!<%D%/3$$rBP>]$H$7$?3$0h$K$*$1$kL}I:N.$N%7%_%e%l!<%H$,2DG=$K$J$C$F$$$k!#K\8&5f$G$O!">e5-%l!<%@$Ge$N8!>Z$r9T$&!#(B
Fig.1$BA%Gu%l!<%@2hA|!J(B2004$BG/(B2$B7n(B24$BF|(BAM9:00$B!K(B$B!!(BFig2. $BA%Gu%l!<%@2hA|$h$jF@$i$lI=AXN.B.!J(B2004$BG/(B2$B7n(B24$BF|(BAM9:00$B!K(B$B!!(BFig.3$B3$N.$N?tCM%7%_%e%l!<%7%g%s7k2L!J(B2004$BG/(B2$B7n(B24$BF|(BAM9:00$B!K(B
$B8&5fFbMF!&@.2L(B $BK\8&5f$K$*$1$k$B-!L}I:N.%7%_%e%l!<%7%g%s%7%9%F%`$N9=C[(B
$B-"8=CO4QB,$K$h$kA%Gu%l!<%@%G!<%?$N$B-#L}I:N.%7%_%e%l!<%7%g%s@:EY$N8!>Z(B
$B!!-!$K$*$$$F$O!"4pK\$H$J$kL}I:N.%7%_%e%l!<%7%g%s%7%9%F%`$O3$N.%7%_%e%l!<%7%g%s%U%'!<%:$HL}I:N.%7%_%e%l!<%7%g%s%U%'!<%:$N(B2$B$D$N7W;;%U%'!<%:$h$j9;@5$5$l!"4{$K9=C[:Q$_$G$"$j!"6-3&>r7o$r%*%[!<%D%/3$$rBP>]$K$7$?%7%_%e%l!<%7%g%s$KBP1~$G$-$k$h$&2~NI$7$?!#(B
$B!!-"$K$D$$$F$O!"%7%_%e%l!<%7%g%s$N=EMW$J%Q%i%a!<%?$G$"$kFsl$N%G!<%?$rFig.1$B$O!"A%Gu%l!<%@2hA|!J(B2004$BG/(B2$B7n(B24$BF|(BAM9:00$B!K(B
Fig.2$B$O!"F1;~9o$NA%Gu%l!<%@2hA|$h$j5a$a$?I=AXN.B.$NJ,I[(B
Fig.3$B$O!"F1;~9o$N5$>]D#Ds6!$NIw8~!&IwB.J,I[%G!<%?$rMxMQ$7$?3$N.$N?tCM%7%_%e%l!<%7%g%s!JL}I:N.%7%_%e%l!<%7%g%s$N:G=i$N%U%'!<%:!K$N7k2L$r<($9!#A%Gu%l!<%@$h$jI=AXN.B.$r5a$a$k:]!"A%Gu%l!<%@$N;~4VE*$KO"B3$9$k%l!<%@!<%(%3!<2hA|$KBP$7$F!"N%;6(BFFT$B$r9T$$!"(Bx$BJ}8~!"(By$BJ}8~$NGH?t!J(Brad/m$B!K$H3Q<~GH?t&X!J(Brad/s$B!K$N6u4V$K$*$$$F!"(B3$B.?6I}GH$+$i$N0\F0NL$rCj=P$7I=AXN.B.$rF@$?$,!"(BFig.2$B$NI=AXN.B.$NJ?6QE*$J%Y%/%H%kNL$H(BFig.3$B$K<($93$N.$N?tCM%7%_%e%l!<%7%g%s7k2L$r8+$k$HA%Gu%l!<%@$+$iF@$i$l$?I=AXN.B.$O!"6I=jE*$J2hA|$K5Z$\$9%N%$%:$N1F6A$,$"$j!"?tCM%7%_%e%l!<%7%g%s$rJd40$9$k%G!<%?$H$7$F;HMQ$K6!$9$k$?$a$K$O!"99$J$k8!>Z$,I,MW$G$"$k!#(B
$B!!$3$N$?$a!"-#$K$D$$$F$O!"-!$K-"$N%G!<%?$rZ$r9T$&M=Dj$G$"$C$?$,!"%l!<%@%G!<%?$N2hA|2r@O7k2L$h$jF@$i$l$?GHB.!"GH8~$H%7%_%e%l!<%7%g%s$h$j$($i$l$?N.B.!"N.8~$H$NHf3S$r9T$&$3$H$K$h$j@:EY8!>Z$r9T$C$?:]$N8!>Z$G7k2LE*$KDj@-E*$J8!>Z$7$+=PMh$:!"%l!<%@%G!<%?F12=$K$h$k@:EY8!>Z$O
Fig.1$BA%Gu%l!<%@2hA|!J(B2004$BG/(B2$B7n(B24$BF|(BAM9:00$B!K(B$B!!(BFig2. $BA%Gu%l!<%@2hA|$h$jF@$i$lI=AXN.B.!J(B2004$BG/(B2$B7n(B24$BF|(BAM9:00$B!K(B$B!!(BFig.3$B3$N.$N?tCM%7%_%e%l!<%7%g%s7k2L!J(B2004$BG/(B2$B7n(B24$BF|(BAM9:00$B!K(B

$B!!(B