), ▁September ▁ 6 – 9 , ▁Ka oh si ung , ▁Taiwan . ▁ ▁S - Y . ▁Chen , ▁ 2 0 0 7 , ▁Grad ient - B ased ▁Struct ural ▁and ▁CF D ▁Global ▁Sh ape ▁Opt im ization ▁with ▁Sm art DO ▁and ▁the ▁Response ▁Sm o othing ▁Technology , ▁Pro ceed ings ▁of ▁the ▁ 7 th ▁World ▁Congress es ▁of ▁Struct ural ▁and ▁Mult id is cipl inary ▁Opt im ization ▁( W CS MO 7 ), ▁CO EX ▁Se oul , ▁ 2 1 – 2 5 ▁May ▁ 2 0 0 7 , ▁Korea ▁ ▁S - Y . ▁Chen , ▁J . ▁W . C . ▁L iao ▁and ▁V . ▁Ts ai , ▁ 2 0 0 7 ▁“ Im pro ving ▁the ▁R eli ability ▁and ▁Us ability ▁of ▁Struct ural ▁Sh aping ▁Opt im ization ▁– The ▁Cont our ▁Natural ▁Sh ape ▁Function ”, ▁Journal ▁of ▁Chinese ▁Institute ▁of ▁Engine ers , ▁Vol . ▁ 3 0 ▁( to ▁be ▁published ). ▁ ▁S - Y . ▁Chen , ▁Nov ▁ 2 0 0 2 , ▁" Integr ating ▁A NS YS ▁with ▁Modern ▁N umer ical ▁Opt im ization ▁Te chni ques ▁- ▁Part ▁I ▁: ▁Con j ug ate ▁Fe as ible ▁Dire cit on ▁Method , ▁ 2 0 0 2 ▁Taiwan ▁Area ▁A NS YS ▁Users ▁Conference . ▁ ▁S - Y . ▁Chen , ▁Nov ▁ 2 0 0 2 , ▁" Integr ating ▁A