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inventorsdoe quasiturbine technology powertrain global congress advanced qurbine energy pioneersdepartment technologyenergy control stokesapc-100pollution rufus technologydr. enginesalternative saint-hilairemulti-fuel stokesdr.giles technologyadvanced automotive propulsion dr. giles saint-hilaire engine multi-fuel powerplants myron stokes d gpc sheila ronisqurbinefuture