ew ail , ▁Cal tech ▁▁ 1 9 9 8 ▁K end all ▁N . ▁Hou k , ▁U CLA ▁▁ 1 9 9 9 ▁Peter ▁B . ▁Der van , ▁Cal tech ▁▁ 2 0 0 0 ▁Dr . ▁William ▁Andrew ▁God d ard ▁III , ▁Cal tech ▁▁ 2 0 0 1 ▁Peter ▁M . ▁R ent ze pis , ▁U C ▁Ir v ine ▁▁ 2 0 0 2 ▁Robert ▁H . ▁Gr ub bs , ▁Cal tech ▁▁ 2 0 0 3 ▁Ar ie h ▁War sh el , ▁US C ▁▁ 2 0 0 4 ▁Christopher ▁Re ed , ▁U C ▁R ivers ide ▁▁ 2 0 0 5 ▁Fred ▁W ud l , ▁U CLA ▁▁ 2 0 0 6 ▁G . ▁K . ▁S ury a ▁P rak ash , ▁US C ▁L oker ▁H ydro car bon ▁Research ▁Institute ▁▁ 2 0 0 7 ▁Barbara ▁Fin l ays on - P itt s , ▁U C ▁Ir v ine ▁▁ 2 0 0 8 ▁Joan ▁S . ▁Valent ine , ▁U CLA ▁▁ 2 0 0 9 ▁Richard ▁B . ▁Kan er , ▁U CLA ▁▁ 2 0 1 0 ▁Dennis ▁A . ▁D ough ert y , ▁Cal tech ▁▁ 2 0 1 1 ▁Karl ▁O . ▁Chr iste , ▁US C ▁▁ 2 0 1 2 ▁John ▁Ber ca w , ▁Cal tech ▁▁ 2 0 1 3 ▁Mark ▁E . ▁Thompson , ▁US C ▁▁ 2 0 1 4 ▁William ▁J .