& " " " '() " " $ ! " ! " & " " " # ! ! " '() & " " " # ! % # ! , # ! / '() + -+ + ! " & " " " # ! * '() ! " & " " " '() ≠ -+ ! " # ! . ! " & " " " + '(() " " -+ " " " " " " " " - " " " 2 " " " + -+ " ! " " " # ! &3 " & 0 ! " " '() " " 6 1 # ! " '(() " " " " % 7 2 " 2 " : " " "8 2 ! " 9 " " ** 7 ! " " ' )7 '-) 7 ' )7 ' )7 ' )7 " "2" 8 " ;< 2 - " ; " ; " " " " ; " ! " " " ; " " - " ;2 " " " ; " " " ; " # ! " '((() "2" 8 " " " 4 ! " & " "8 = " " " " 8 " 8 " " " " " ! "> " " " " 5 # ! " "" " " 2 ! " " # ! ! " # ! % & " "8 = " " " 8 " & " 8 " = " ! "> " @ & " $ ! "= E ! " " 8 "< " $ " 2 ! ! "= ! E H 2 - ") " "8 "2" $ " " " " ! " " ? " 8 " . # ! " '() "2 " " : 8 " < "< 9 = π:> 2 - # ! / " '(() - " " 7 - π: F 7: $ 7? 2 π π " - 2 " " "< " - < " "8 :" = " , # ! $ $ ! " "< " FG' E " " ! " " E " "" ' 7 ) 7 $ " * # ! & " " " 6#C6 ! "> " "" ! AB6C(D 8 " " " " ! " ? 8 " " " "" " " " " " " " "8 " 2 2 " " 2 " " 7 ! " π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π 6 ! %&0&( $ π %7( $ π %8( %708( ! 2 " >< % & 2 " % 9&: (! % 9&9( : " '() $π% 69 ?O # ! " π H " " " ? 2 2 2 " ( ! , ; $ <=+ ! ,>! " " =" " " %. '() ! " 69 ?O # ! %/ '(() * ,, &; &; @ @ ? ? &; $ 9&: $ ? &; $ $ π ! F &; &; $ π? &;"?" & &; $ @&% &;( &; $π &; $ π@% ! &;( 69 ?O &;"?" & F 5 ** K % : 54 K % : 14 $ 5 41 K 5 . $ 5 4. F ;,-! " &; $ # ! &; 9&: $ π $ @% &;( $ π@% &;( 14 $ 5 4. F ;, 9 %0 '((() ! " 69 ?O # ! %1 '(D) * ,, * / * . * ,, * / &; &; @ @ ? 9&: &; $ ! F % /4 K 9&: $π ? &; &; $ ? &; $ $ π? &; &:@& &; $ &; $ @&% &;( $π &; $ π@% ! &;( F5 .K%: 14 $ 5 41 K 5 .5 $ 5 4. F * . ! " &:@& &; # ! %4 9&: $ ? &; $ $ π $ π? &; &; $π &; 14 $ 5 41 K 5 .5 F * ,. ! " # ! *5 " 2 P D 9 " " " : " '() "! " π! 2 = " " " 2 "! %P & " " " > 2 = Q2 " > 9 = /? ,$# % M', ) /? ,$ " 8 " " " " " ! 2 "8 " M',) " 2 = 8 " R ! /? .M : " '() ! " " " " " " " " " " " " ? " " ?* & 7 & 7 : ?* ?* ?* ?* ?* ?* ?* ?* ?* ?* ! " " 2 "! *P & : " '() * # ! ! " " " 2 " 2* :" < @ : " '(() 0 AA = / 7F 0. D E @2 F " @ F H @ F2 @L F 2 ? 7 F % *5 ? " ! " F ?* F 5>14 " 2 ?% 2 ?* F 2 ?* Fπ 2 ?* F F 5>// % 7 ? E 2 " "2 2 " " " 2 - "< 2 - " "2 ! " ? F 5>,.S% F 5>%* " # ! *, #OE " < 7F 7 ?* K π ?* F >54 K 5>/, F >0* ?* ?* ?*$ ?* F >1 S% F 5>45 E UU 7 F %2 ?* F % : 5>14 F >01 K 2? F 5>/, K 5>%* F 5>10 7 2 < ?O % ?* $ ** #OE 2: F π: K 2? 2 # ! $ D ! Σ4 ! Σ , $ Σ A , F F ? 7?$? = ! D E 2? F " B C 2 69 *% # ! ?, $ 2? F F 5>,* >54 T 5>%* F 5>1/ " ! @ " @ " " @ 2 2 2 "= " 2 F 5>%5 ! " # ! *. ! " # ! */ " 2 : " '(() " " 2* @ 2 " @ " @ " @ " @ " : " " > 9 " " " " IM$' ?%) $MJ < ' 2 " > > " " < " ! 9 8 : " Σ4" 7 71 ! > ) ! " " " @ " " 2 > " - < " " " " " " " "" " " " " " F 5>% 4 " & V7= V7= - " & & 2 7 F & V7 F Σ =- " # ! 2 " " " 2 " < ?6 ( *1 # ! " '((() &$%= - " "" U 2 L FΣ # 7 L V " "2 #F H F H VF " " ! "8 " - 7 2 7 & 2 8 " < - - 8 2 ! " # ! 7 " 2 " ! - ' 7 " " ? L+ S ?* ' ?%) ,5 # ! " '() " " " 8 " " ?* $,>% ; $# ; "' " " ! 2 " % $# $ ; $(; 7)% K U+' ! " 7) K U++ # ! % ; $ ; $ $,>, F $U' ") " ) $,>5 S '" " 2 " ? K = 9 " 2 # 8 " " " ) M ?* 2 - " :" " " 2 " 8 ! " - 2 " 2 " *4 69 " > 7& = " " - 7 EG ! " 7V F Σ ' $ *0 V< " S 2 " - 2 " "2 2 "" F H F < 2 K Σ- "2 $ D " ? E UU > " "2 ! Σ4 ! Σ , $ Σ A , F F " '(() "" 2F " F F2 -F 2 @2 F " @ F H @ F2 @L F 2 " ! " ! D E D E " 2 - " > " "> "" "< @ :" @ " @ " 0 AA = " - ! " " 9 " '() $ M $*>/ , $,>5 $,>, L ? ! " # ! ,% " " & " '(() " C " & " '(() % (C L+ & ??& &$ ?% 8 σ! ' 8 ' & 8 L &$ ? 8 σ! σ < < < 8 '! ' $ ! " " " & " # ! ,* " (C 2 ! = σ " ! ' 2 σ <=+ <=;+ "<= 9 "<= : "<=;< @& @% &;( @& &; " 6" " & 2 F 2 " $ $ σ <=+ <=;+ 2 ! " - : " " # ! ! " ,/ # ! ,1 " ! " " " " " 'E) " '(D) ! " '(() W7 8 $ <=<=9+ "" " X ,. K2 σ <=+> <= ; " J " σF M @? = # ! " '(() 0? 1H2 H IH0J ? " '((() N ! ! ' ) ,, ) σ <=+> <= ; "<=99 "<=>; "<=>! " " # ! ! " '() W σ ! M @? " " σ " ! % * ! " " '(() % & " " $ " 2 "X <= 9 "<= : 9 M ? I% % %J , ! " # ! ,0 ! " " " " " '(D) ! " '((> 9 " ) " " " '(D) ! " '((> 9 ) ?* ?* # # ?* 6 # ? # ? ?* ?* ?* ?* 6 ?* ?* ! " " ; " ! " " 'D) " σ "" " 2 ,4 # ! -" ! "' " # %> % 8" & " ??0 $ & ? > " ρσ &;" ??0 $ & ? # ! " " " " " . ! " 7 " 'D() " " E " # ! .% " ) 8 & @! ??& $ 0?&G ' @ &; ??& $ 0?&G ' " L " "8 @2 " -" @ " : @ @ σ; F 5 62 E " " 62 ! " 8" & " ??0 $ & ? ??& $ 0?& "( 62 " $0 $0 " 0 @? ! , + %σ ! <,+>( @& ! " ,;< %σ ! "<,99( C 2 " σ;' 8 & 2 "( K " " " %' '<( ! ρ σ8L $ %' '<( ! ρ σ8L $ K σ " σ $ " 'D() C 2 " σ;= %?.) σ "C % σ $C % " .5 # ! " " 2 2 5" : σ;Z 5 " : # ! .* E # 9 " " " @ ! " " $ ! @7 σ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ƒ'2 " 7 " 7 " / ' /, " /* K L" # ! " E '(D) L" ! " " " - / 7 ! " - . ( " > " , " "> G> " 2 - /% ! " ! * 2 # ! E 7 - " ! " E '((() 6 " ( / # ! % " "< " 5 ! M% ' 4/*) EA F G '2 " E K E '(() " < ( K ! " ? "< " $8 " ! " " " " " ") K ƒ' " ") K ƒ' ") " " 6.5\ (.5\ 6.5 - " 29 " E I J 29 ! " # ! /. ! " # ! // " & E '() 3= 3 7! " " < $ 8 $ ! < " 8 $ NNN$ $ 8 $ ;8& " " " " 8 8 $ 7 < E '() 2 - " " - " 7) K σ K 6" S F K -' S F K -π K σ K 6" S F K -' S F K -π $ π% K σ K 6" 7)% K σ K 6" 7) $ ' 7 7 " ! " " 69 < " " " " " 4 " ! P -H " 2 " " 3 ! - " - " 2 "" K * " 0 ! µ $ Σ 58 5 $ µF 9F M 9F - ! ;,->H $ ,><π $ -, :σ $ ,:, (C K " ! "<,-O9π $ ;,O9-π " , >: * ( <" " " /1 H H ! # ! E '(() % * " ' ! <,<-:20 $ ,:: % ! " E '() " - /0 # ! "2 " > - ! " " " " " " 5" "" " \ " 9 " " 9 9 ! <,9+σ" $ <,-> σ " <, :π $ -,>< ! " " 2 9 # ! /4 ! " E '((() " 7 D µ! % "= " - " " " " " " ' ) 8 > > : " " 05 E$* '7( )= ( # ! < : " 2 > " 8 " " > " ?*> < " - 0 ! % ( $ Σ 58 5 " 2 " " ! ! 9 9 9 5 " " " " < " ! - 9 " " ! > "2 " 7( # ! 0 "" "R > 7( ! = 2 "- " "" " VE( ! " "Q - '7 V " 2 ! 2 - " ) ! " # ! 0% " % "= E$* " 24 % 2 4 (C V " " ' ) " " ! 8 8 " - " " " " '-) " ! " 7( " " " " " ' " " 8 " " " " (= (= 2 " < - " " " - " " > ( 7E6 7& ' " " 9 " 9 " " > " > " "- " "- " " & " "" 2 ") ") " ! " 2 "> > (# (A&6 6# C 6C ") "" " " "8 " > E$* " 2 " " " ! * & "= " " " 0* # ! ! " E$* "" # ! 0, # ! 0/ ! " " 8 " 2 " * " " " " 8 " 2 "> " , " "> 2 ,I ;, 4 α E # ?* M F 5>5/0 '± 5>5 0)∆α K 5> 4 '± 5>*,) -, F 0> F 5 11 ∆α F ?* "! " 45 P D :, ? 2 " " 2 ! " 9, α " & 3 0. # ! ! " σπ ; ;# ; %#?% * I % C6 K % #; ; ?* ; ;A ; ( & " ! - - ; ; ; #?% ?* ; " -? &; π ?* ; ? ;#' ! -? &; ; $ -? &; " - &; " -@% &;( ! -@% &;( $ -@% &;( -@& = -?&,,, -@& = -?&=,,, ; &;= -@% &;( ! - &; $ - $ - &; " ;=- - 4-# ! ;=- = J) - 4-# =- =- -@? -@? $ ;=- = J) ; 4;= - ; 4;= -@? ?*)% K ! " # ! 00 6 ! " # ! 01 6 K 2* & 3 K 5 < &; " " ;&+ ! " ;&+ &G & ? &;G & ? &; " &: & G 4;G & 9&:G & ! &: & &; 4;G & 9&: G 4;G & 9&:G & π= π= = = 02= $ " ;&+ $ &: & &; " " :&O 4;G " -&+ " ;&:) # & " 9&: # & " " -&O ! " :&O $ " :&O " -&+ " ;&:) " 9& " -&O & % 3 K 6 6 ( ? ? ≡ ? #F % ' %?.) % # % ?* .$ $ $ ?F ' #)% 7 ' ?*)% ?* ( % #' ?*)% ? #? *?0 A' ?)% #? #?% #? % ?* % % * , . * ?%A ' ?*) ] ] ] * 04 # ! % ?F ?% ?' ?*)% ' %?.) ] ] ] * ?% *?0 *?0 # % % *?0 ?* / 0 1 4 5 ! " K 6D . ### . ?* ?% ?* ?* ( % , ( C A % 9&: < ! " ,( 9&: % & ( K , # ! 1 ! " # ! 15