research overview Research and development of a hybrid gas-electric engine for aircraft applications. Engineering design of a 'green' aircraft concept based on the blended wing body concept and hybrid propulsion.
selected publications chapter The Hyperion 2.1 Green Aircraft Project 2013 In-situ real-time visualization of solidifying an melting metallic alloys. 243-247. 2001 Vertically staggered patterns on free convective flow. 367-375. 1979 journal article Inclusive double-helicity asymmetries in neutral-pion and eta-meson production in <(p) over right arrow> + <(p) over right arrow> collisions at √s=200 GeV. Physical Review D. 2014 Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p plus p collisions at √s=200 and 62.4 GeV. Physical Review D. 2014 Cold-Nuclear-Matter Effects on Heavy-Quark Production at Forward and Backward Rapidity in d + Au Collisions at √sNN = GeV. Physical Review Letters. 2014 Azimuthal-Angle Dependence of Charged-Pion-Interferometry Measurements with Respect to Second- and Third-Order Event Planes in Au plus Au Collisions at √SNN=200 GeV. Physical Review Letters. 2014 Heavy-flavor electron-muon correlations in p plus p and d plus Au collisions at √sNN=200 GeV. Physical Review C: Nuclear Physics. 2014 Epigenomic alterations define lethal CIMP-positive ependymomas of infancy. Nature. 445-+. 2014 Azimuthal anisotropy of π0 and η mesons in Au plus Au collisions at √sNN=200 GeV. Physical Review C. 2013 Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central d plus Au Collisions at √sNN=200 GeV. Physical Review Letters. 2013 Nuclear Modification of ψ′, χc, and J/ψ Production in d plus Au Collisions at √sNN=200 GeV. Physical Review Letters. 2013 Chemical stratification and solidification in a differentially heated melt. Journal of Alloys and Compounds. 197-209. 2003 Radioscopic visualization of melting, alloying and solidification of pure Al and Al-Cu. Journal of Alloys and Compounds. 175-189. 2003 Double-diffusive convective flow and interface morphology during transient Ga-5% In alloy melting. Journal of Crystal Growth. 170-182. 2000 In-situ observed pore formation during solidification of aluminium. ISIJ International. 364-372. 2000 In situ observation of concentrational stratification and solid-liquid interface morphology during Ga-5% In alloy melt solidification. Journal of Crystal Growth. 590-606. 1999 Directional solidification and melting of eutectic GaIn. Crystal Research and Technology. 1129-1140. 1999 Growth rate effects during indium-antimony crystal growth. Crystal Research and Technology. 275-283. 1999 Visualization study of melting and solidification in convecting hypoeutectic Ga-In alloy. International Journal of Heat and Mass Transfer. 2537-2548. 1998 Compositional effects on solidification of congruently melting InSb. Crystal Research and Technology. 717-731. 1998 Interface dynamics during indium antimonide crystal growth. Crystal Research and Technology. 707-716. 1998 Experimental study of stability in a layer of a model alloy with a liquid miscibility gap. Heat and Mass Transfer. 193-199. 1997 Natural convection in isopycnic liquid. International Communications in Heat and Mass Transfer. 849-855. 1997 A threshold for onset of natural convection in binary metallic alloys. Heat and Mass Transfer. 489-498. 1997 Steady natural convection in a two-layer system of immiscible liquids. International Journal of Heat and Mass Transfer. 2799-2812. 1997 A radioscopic technique to study convective fluid dynamics in opaque liquid metals. Journal of Fluid Mechanics. 29-41. 1997 Experimental study of natural convection in a model alloy with a miscibility gap. International Journal of Heat and Mass Transfer. 2595-2605. 1997 In-situ visualization of off-stoichiometric equilibrium crystal growth within indium antimonide: Antimony-rich composition. Journal of Crystal Growth. 238-244. 1997 Numerical simulation of natural convection of gallium in a narrow gap. International Journal of Heat and Mass Transfer. 1169-1180. 1997 Visualizing convection and solidification in metallic alloys. JOM. 31-35. 1997 In situ visualization of constitutional supercooling within a Bridgman-Stockbarger system. Journal of Crystal Growth. 1-11. 1997 Visualization of Rayleigh-Benard convection in liquid metals. European Journal of Mechanics, B/Fluids. 447-454. 1997 Visualization of convective solidification in a vertical layer of eutectic Ga-In melt. Applied Physics A: Materials Science and Processing. 45-54. 1997 Radioscopic visualization of isothermal solidification of eutectic Ga-In alloy. Metallurgical and Materials Transactions B. 686-689. 1996 Steady Rayleigh-Benard convection in a two-layer system of immiscible liquids. Journal of Heat Transfer. 366-373. 1996 Steady natural convection in a double layer of immiscible liquids with density inversion. International Journal of Heat and Mass Transfer. 467-478. 1996 MODELING OF LIQUID ENCAPSULATED GALLIUM MELTS. Acta Astronautica. 805-812. 1995 PARTICLE DESIGN FOR DISPLACEMENT TRACKING VELOCIMETRY. Measurement Science and Technology. 682-689. 1995 A NOVEL VERTICAL BRIDGMAN-STOCKBARGER CRYSTAL-GROWTH SYSTEM WITH VISUALIZATION CAPABILITY. Measurement Science and Technology. 472-476. 1995 RADIOSCOPIC VISUALIZATION OF INDIUM-ANTIMONIDE GROWTH BY THE VERTICAL BRIDGMAN-STOCKBARGER TECHNIQUE. Journal of Crystal Growth. 408-410. 1995 VISUALIZATION OF DENSITY FIELDS IN LIQUID-METALS. International Journal of Heat and Mass Transfer. 2583-2587. 1994 VISUALIZATION OF LIQUID-SOLID INTERFACE MORPHOLOGIES IN GALLIUM SUBJECT TO NATURAL-CONVECTION. Journal of Crystal Growth. 414-425. 1994 CONVECTION IN MULTIPLE LAYERS OF IMMISCIBLE LIQUIDS IN A SHALLOW CAVITY .1. STEADY NATURAL-CONVECTION. International Journal of Multiphase Flow. 383-396. 1994 CONVECTION IN MULTIPLE LAYERS OF IMMISCIBLE LIQUIDS IN A SHALLOW CAVITY .2. STEADY THERMOCAPILLARY CONVECTION. International Journal of Multiphase Flow. 397-414. 1994 DENSITY INVERSION EFFECT ON TRANSIENT NATURAL-CONVECTION IN A RECTANGULAR ENCLOSURE. International Journal of Heat and Mass Transfer. 927-938. 1994 NATURAL-CONVECTION OF WATER IN A RECTANGULAR CAVITY INCLUDING DENSITY INVERSION. International Journal of Heat and Fluid Flow. 366-375. 1993 PENETRATIVE CONVECTION IN SUBLAYER OF WATER INCLUDING DENSITY INVERSION. Heat and Mass Transfer. 37-49. 1993 COUPLING OF NATURAL-CONVECTION FLOW ACROSS A VERTICAL DENSITY INVERSION INTERFACE. Heat and Mass Transfer. 471-479. 1993 THERMOCAPILLARY CONVECTION IN 2 IMMISCIBLE LIQUID LAYERS WITH FREE-SURFACE. Physics of fluids. A, Fluid dynamics. 1914-1927. 1993 NATURAL AND THERMOCAPILLARY CONVECTION IN 3 LAYERS. European Journal of Mechanics, B/Fluids. 635-655. 1993 SURFACE-TENSION AND BUOYANCY EFFECTS ON A FREE-FREE LAYER. European Journal of Mechanics, B/Fluids. 15-29. 1993 INTERACTION OF LOCAL INSTABILITIES DURING OSCILLATORY CONVECTION. Physical Review A: Atomic, Molecular and Optical Physics. 3410-3422. 1988 Nonsteady End Effects in Hele-Shaw Cells. Physical Review Letters. 1802-1804. 1986 Time dependent heat transfer in Hele-Shaw slots. International Communications in Heat and Mass Transfer. 159-167. 1985 Time-Dependent Free Convection in Vertical Slots. Physical Review Letters. 1599-1602. 1981
education and training Ph.D., Univ of Karlsruhe (Germany) 1980 M.S., Univ of Karlsruhe (Germany) 1976
awards and honors Rocky Mountain Section Educator of the Year, conferred by American Institute of Aeronautics and Astronautics, 2011 New Inventor of the Year, conferred by Office of Technology Transfer, 2010
geographic focus Africa Continent Europe Continent Finland Country Germany Country South Africa Country