Turbofan-engine noise suppression.
Program for perceived noise levels reduction on ground of turbofan powered commercial transport by acoustically absorptive lining of ducts
Marsh, A. H.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Study of acoustical treatments for jet-engine nacelles.
Nacelle treatment using broad band resonator for turbofan engine from aerodynamic and acoustical criteria
Marsh, A. H.↗
An acoustical study of the Kiwi B nuclear rocket
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Ailman, C. M.↗
Duct-lining materials and concepts
Acoustic characteristics evaluation of duct lining materials and design of acoustically absorptive aircraft inlets and fan ducts
Feder, E.↗
Ground-runup tests of acoustically treated inlets and fan ducts
Ground performance tests on noise intensity of turbofan engine ducts modified by acoustic linings
Marsh, A. H.↗
Noise predictions and economic effects of nacelle modifications to McDonnell Douglas DC-8 airplanes
Noise predictions and economics of nacelle modifications to DC-8 aircraft
Marsh, A. H.↗
Gravity model comparison using GEOS-1 long arc orbital solutions
Gravity mathematical models compared and verified using Explorer 29 /GEOS 1/ long arc orbital solutions
Lerch, F. J.↗
Evaluation of the Goddard range and range rate at Rosman by intercomparison with GEOS-1 long arc orbital solutions
Goddard range and range rate tracking system at Rosman, N.C., evaluated using Explorer 29 /GEOS 1/ long arc orbital solutions
Lerch, F. J.↗
Intercomparison of the minitrack and optical tracking networks using GEOS-1 long arc orbital solutions, part 1
Minitrack and optical tracking networks compared using Explorer 29 /GEOS 1/ long arc orbital solutions
Lerch, F. J.↗
An intercomparison of some results from GEOS-1 data based on secor short arc vs optical long arc reference orbits
US Army SECOR and optical tracking networks compared using Explorer 29 /GEOS 1/ long arc orbital solutions
Lerch, F. J.↗
Development of ion implantation techniques for microelectronics
Ion implantation process for fabricating active devices in high bandgap semiconductor materials for high temperature operation
Dunlap, H. L.↗
Gravity model comparison using GEOS 1 long- arc orbital solutions
Gravity model comparison using geodetic satellite long arc orbital solutions
Lerch, F. J.↗
GEOS I tracking station positions on the SAO standard earth /C-5/
GEOS 1 tracking station positions on SAO standard earth C-5 model
Brooks, R. L.↗
Evaluation of the Goddard range and range rate system at Rosman by intercomparison with GEOS 1 long-arc orbital solutions
Evaluation of Goddard range and range rate system at Rosman by intercomparison with GEOS 1 long-arc orbital solutions
Lerch, F. J.↗
Trifunctional alcohol
New trifunctional alcohol derived from trimer acid and novel method of preparation
Hutchison, J. J.↗
GEOS-2 and 13th order terms of the geopotential
Resonance of Explorer 36 satellite with 13th order terms of geopotential
Douglas, B. C.↗
The presence of deep levels in ion implanted junctions.
Deep trapping levels caused by ion implantation doping, discussing level effects on electrical characteristics of zinc implanted GaAs diodes
Hunsperger, R. G.↗
Development of ion implantation techniques for microelectronics
Ion implantation techniques for p-n junction diodes of silicon carbide and gallium arsenide
Dunlap, H. L.↗