▁companies ▁of ▁the ▁United ▁Kingdom ▁Category : Struct ural ▁engineering <0x0A> </s> ▁D w ight ▁B ark ley ▁( born ▁ 7 ▁January ▁ 1 9 5 9 ) ▁is ▁a ▁professor ▁of ▁mathematics ▁at ▁the ▁University ▁of ▁War wick . ▁ ▁Education ▁and ▁career ▁ ▁B ark ley ▁obtained ▁his ▁Ph D ▁in ▁physics ▁from ▁the ▁University ▁of ▁Texas ▁at ▁Austin ▁in ▁ 1 9 8 8 . ▁▁ ▁He ▁then ▁spent ▁one ▁year ▁at ▁Cal tech ▁working ▁with ▁Philip ▁S aff man ▁followed ▁by ▁three ▁years ▁at ▁Pr inc eton ▁University ▁where ▁he ▁worked ▁with ▁Y ann ís ▁K ever k id is ▁and ▁Steven ▁Or sz ag . ▁In ▁ 1 9 9 2 ▁he ▁was ▁awarded ▁both ▁NS F ▁and ▁NAT O ▁post do ctor al ▁fellow ships . ▁In ▁ 1 9 9 4 ▁he ▁joined ▁the ▁fac ulty ▁at ▁the ▁University ▁of ▁War wick . ▁ ▁Research ▁ ▁B ark ley ▁studies ▁waves ▁in ▁exc itable ▁media ▁such ▁as ▁the ▁Bel ou so v – Z hab ot in sky ▁reaction , ▁heart ▁t issue , ▁and ▁neur ons . ▁He ▁is ▁the ▁author ▁of ▁the ▁B ark ley ▁Model ▁of ▁exc itable ▁media ▁and ▁discover er ▁of ▁the ▁role ▁of ▁E uclidean ▁symmetry ▁in ▁spir al - wave ▁dynamics . ▁ ▁In ▁ 1 9 9 7 , ▁La ure tte ▁T uck erman ▁and ▁D w ight ▁B ark ley ▁co ined ▁the ▁term ▁" b if ur cation ▁analysis ▁for ▁time ▁ste ppers "