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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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Integral relations method efficiency and accuracy in solving incompressible turbulent boundary layer equations, noting acceptability for turbulent flows with small wake components
Low mass star evolution from helium burning to white dwarf, describing red giant and mass loss stages in model
Neutron core star models based on realistic nuclear matter calculations and hyperons equation of state
Tyrosine content and utilization in mouse liver, showing daily rhythm in composite metabolism rate
L-dihydroxyphenylalanine intraperitoneal injection effect on S-adenosylmethionine concentration in rat brain
Chemical composition and reducing capacity of Apollo 11 igneous rocks, breccia and soil fines, using semimicro X ray fluorescence
Method for predicting interaction produced by externally generated, oblique shock wave impinging on laminar or turbulent boundary layers
Error study for SS-1090 ATM sensor system, effects of atmospheric refraction, atmospheric attenuation, and earth albedo
Shell impact response and wave propagation in cylindrical and conical shells by experimental and analytical methods
Wind tunnel simulations of flow fields and aerothermodynamics of space shuttle orbiters
Simple argon model atoms used for calculating electron number densities for argon plasma discharges
Investigating bidirectional jet flap device for application to helicopter rotors
Grid turbulence interaction with uniform mean shear flow, examining initial disturbance length scale effects
Pneumatic and hydraulic fluidic power control systems, discussing moving part position servos and cold gas reaction systems
Lunar soil 12033 bulk chemical analysis, suggesting mixture of exotic component with local soil in 41/59 proportion
Apollo 12 lunar soils and igneous rocks from Ocean of Storms, determining major, minor and trace element composition with chemical, X ray fluorescence and spectrographic techniques
System for quantitative determination of leak rates in large pressurized compartments is described. Method uses pressure reference cylinder placed in thermal contact with internal environment of compartment. Construction of equipment and details of operational procedure are reported. Illustration of equipment is included.
Temporal and radial profiles are obtained 30 cm downstream from the anode for two peak arc currents (11.2 kA and 20 kA) and for various auxiliary magnetic fields (0, 1.0 T, and 2.0T) using the Thomson scattering technique. Average density and temperature are relatively constant for over 100 microseconds with significant fluctuations. Radial profiles obtained are relatively flat for 4 cm from the axis. Compared to earlier 20 cm data, the exhaust density has decreased significantly, the average temperature (4.6 eV) has not changed, and the density hole with an auxiliary magnetic field has enlarged.