PNG  IHDRM pHYs N Nw#tIME 6oA"tEXtCreation Time01-Aug-2006 10:54:22h$tEXtSoftwareMATLAB, The Mathworks, Inc.RcIDATxۖ,@QWv_5M(a͋U) Ps?cW "@P$A (EH "@P$A (EH "@P$A (Ez8kYJ~?S@q4S@ P d6vrX˝:j38cE . ," FS@n̩ ) W!1dQˑLZrh6Q10," 3lcP HЎA1dQNHhEG YDr$,"*&@0EDa&h61({$hǠ('$8N#,"j9IN@ C"0 1pmtcP YZC $f' o@ a L$.4=cP Y_\ TGG YDr$,"*&@]3`YDf"}!1pXDZmqbȢ]'[/d߄5z?a{ED-g v?T,"*&c `ŠdQXoàP/K/̦Ϛ9o5}?4N`f!fN@g2|0;YDTL$.=L>] l( t rA1dѲR 1dQˑjMS`vH]4kbD貪rA1#|VCVVӈ`!ZGACAMqADa&%D"` J@a3pr13Őe-c ?'Q3;YDr$&%xo-3lS@]NKHRF"tlL F H.fP Y{-@+τWH&Mh94@qH]aR8(Bx: |z= HZ1bȢI%*G=+Rr{%陝P{(^QXІ!)?!X.QR93@*l|93km5l>/E^>uJJ,Qy؃KSlwC|ά(li,GmOn/=132XBbd7+񊹈 @OP{4PGDa& `t1(FB圀A1dqjhPFG}9KW!YrĄ%J}=Q#| ulC&\Bma"0#@Msfb('$<t%%;?ꆒ`Z,"IYCPL$x0HPhe%>Nt{ŜaB@+s%;ʙ(H&QkUC-t9? --+H]h62p) h7avv^1qɎ"# IЅ!?k"0 ƫȞ`r9H2X;(.z䀳Cp$qĖWDr 3G/'"*&@kh9 ;1 Sy6A<wtĘX :_q*ee +֪3ܜ 0;"Dr&(g'"*&cS@ڼ=LBh9zȄ.`/6^ Aѐ)29+o/i6( D.e͕K33ʉieBU0-(}0;1PDree;'m%;Oi8S"j9?c%ܿP&4AA3m$$(|PAXxQ ϯ6agϋG׮K-OH*?͠ΊN0qV+ TMd:!}]N*8h9R(DԈL(O$.1C.EpLQˋo6Q.~:ڷ7TˬSxL鲤poEWzm7p\.=!ᩎ҉5ώȳBvn.ֹ~Tr~etfSuHta~0m"pL5P2om,WUوj/,dSo6cЦWo+O/O?WU=9/X kqQ__w)&Ha)9iT[hY ;1~:UEW0{#%]5s?_v'}뻿M>iiy|-LCULso٥0=Rҕ؏Tm]v_ɓ^}BvҏB2(Z_!k@!E8aV/[* "k2ƒ4?._ŠCq 5kzՔ+V&oT~zp8=*Cdi)O=oQ O9 #-r{CR v+b Cdx Bx|@uOH\<S)6 'i| iЫ'u+< Aq>7Zg_dKӬt燫 /s2'{n]_ zvF5}[e-dz}&۳(F|]hc o5+Zۡdʑ<oˈ^q]]/l>KQ~\e%R6=|O)-Ӂ,P%;&tJӾ߳_9xD E7qDCn#6eᄐ>_`Voys`gF0}no{⎁WK_zn={tʯ].Q-R\z0}\%A=uL2vP_;Ubjh-0l@ cS"TYU=VEEz$nՙ]Q!(Vcۊ7/+/ >ʁ,N5µSgTDlU޹Jvf·סws>anzQˉL0tqs!PG^"ktahC*W"0%b؜WѽAN $4h;ҹ׾^zn )Tʮ?$#(_azزSDiwFxik?$'gGS+fA[wQ\LD%@"p`=Z-G)]y'pc|t#/TY{{CPͷ잗qE(#ބ 4.dCW<ހszXN)uN^}0i 't 7| ]t]-$PO_LV"jWh[BH55.f'i`餮n\A?^y)H7'g~6 CBe $K?}Utiw~}RU[]TVEH~bf+}PNw3F2S@!OMdi6k_N I `BbP YC5Ulf?WX{b^=v[W@!$k[DM`o5zzP(bg[E>s| U: !+HQ|h_Om1B1NWݓI?:bZ؊ b@.xd(91M1(,":==~} htrf >gA^nߗwm2"vt??>pdb;=ޏ;؊ٛeK[$k?N@֢CkDEJK 9B0e5+ŐEDꇭ>6Mp CIЎA1d(ǁ@@+:bȲQ&dQ1X@3" 3lcP{CΧ2,A@+:bZQD $f' +HDEx+$.ˇ0p,@IA1ZT#Fv !UDtv#VtĐED-G0 "b"taYD*{E~%t8Ơ8ȻC`DUn,0>$#,#`ED 2Y$.0PL$.4=cP Y<:!1d(j#dQ10(,".ЅfbqT'8&RҜTO} y=ʩo7m5mrL@PULei (W /w~3s2*nw:/aՑô;e: -3cht<2М=-0mAl˲̽Zf@8B&Nga.?JVc6֫P^3 :xp=tJ۾#.6v\A0^Pi^3 `yX,vq7_=8(←ܨ\RsW>}-?]PV@V\n&oG4,ʇãPGTvu3`6=uӼ]X3A1 @!) A (E