! " ∆ $" ∆ %" ∆ &" !# " " # " Z !# # Y dP x dP P ' ( !# +, " !# ( - 0 . - . ! 7 ) " . ! ,41" ,31" # . . 0 3 6 = $5 ∆ $ + % 5 ∆ % 6 = $5 ∆ $ + % 5 ∆ % " " ! / -12 8 / ! !# 3 " * 6 9 # = = 2 7 "+ # = 2 2" ! . ' 7 ; / / " " 6 ∆ =ρ ∆ ρ ∆ " < 6 =ρ ' 3 # 2 '2= * = = < " ; / !# . # ) " # . = : ∆ =ρ ∆ , 1/ !# ∆ = - / !# = ; !# 3 ,41" 3 ,31 = > . / + @ " / @ 3 = # ? 2 " / / 9 >3 / B C9 , D ;1 6 / ) ; E ; F 3 "/ 9 ; !# . 9 ( !# G * . = >3 ) = 6 = 6 D 150 !# " ' 6 ' . / ; 150 75 25 50 %:+H G I%2" 50 100 ' J +H G I%2 - 150 . $:J + A"K& + G < 2" I&2 !# 6 A : $ ; ( 6 " % . " & " ": . !# " : =+ > #" " " = 2" . × =$ 6 ρ 3+ 2 4+ 2 (+ 2 +72 J"J%$ J"M & $ %:+L G I%2 J"JMK% J J % %:+L G I%2 J": % J J J"JA: :":$K & %:+L G I%2 J J J"$JJ J"M%J J" J J"J: J"$:J $" K J J"JA: J"JM&K J+L G I%2 : A"K+ G I&2 J :"KK $ " K N %:"M& 3 " O NJ P NJ"J:& + 2 Q N J"J + 2 3 ) +Θ2 = = π % G% Θ = &π K !" ( @ # $ % - +R 3# / / . " 2 = = = % % [ ] & # $ % +F !# . " 2 - / = % / ' = [ ] '( M b G% = Y = % − G% dy x = % & = y h $% & $% [ ] [ ] x dx ) '( = ) % = ( % + % ) = + '( - !# . " 3 3" / = = * = = + - >3 / 3 . ' B/ / 3 ) +SSB2 3 T = T + × % AJ >3 6 D / 3 N %J D / 3 ) !# D / 3 ) = !# , - / . '/ 3 -OP" 3 4 = = - / ' 3 # " ' !# / / 3 < / A$ * + 7 %, " 3 / . 3$-4$/ !# T T = + -+ . 3-4 V 3 -3B4B 0 !? / > / . / . 3 & !# . ( . " 3 " 0 3 / . ? U 6 !? / )" @ / 3 > / / / A% !# = ) !# !? # ' ; / " 3" = + % ± (%θ ) = − >3 − % % + % % − 6 !# / !? A& & !# 3 B 9 W 0 3 !# 3 / / W = - !# / % 6 = - / - . >3 / 3 #= 3= +4 % + ( % 2 4= +3 % + ( % 2 (= +4 % + 3 % 2 '/ / . = = + % A - / ' / 6 - B = !! B = $ $% % SSB B + / SSB = $ $% = ( $ '% $% % + '% ) B = !! B = SSB B = + $ SSB % = $ % % #6 = = = A: