The internal constitutions of the inner planets and the moon
Internal structures of moon and inner planets
GEOLOGY↗
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Results for “MACS”
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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The escape of helium from the earth's atmosphere
Escape of helium from earth atmosphere
EARTH ATMOSPHERE↗
Spectrum of hydromagnetic waves in the exosphere
Spectrum of hydromagnetic waves in exosphere due to magnetic storms
SPECTRUM↗
Process analysis and synthesis
Perception and recognition with respect to communications theory - handwriting simulation
RECOGNITION↗
Least squares estimation of regression coeffi- cients in a special class of polynomial models
Least squares estimation of regression coefficients of balanced polynomials
LEAST SQUARES METHOD↗
Valve designed with elastic seat
Absolute valve closure is accomplished by a machined valve with an axially annular channel which changes the outlet passage into a thin tubular elastic seat member with a retainer backup ring. The elasticity of the seat provides tight conformity to ball irregularity.
Mac Glashan, W. F., Jr.↗
Improved fluid control valve extends diaphragm life
Wear resistance of flexible diaphragms in fluid control valves is increased by incorporating a soft rubber washer at the bottom of the piston, a flexible buffer between the diaphragm and the valve seat, and a fluid feedback arrangement. The stress and wear of components at the valve seat are minimized.
Mac Glashan, W. F.↗
Advances in pumping technology and rocket- engine turbopump applications
Turbopumps for liquid propellant rocket engines
TURBOPUMP↗
Design Study of a Solar Hydrogen Propulsion and Power System Quarterly Report, 17 May 1963 - 17 Aug. 1963
Component relationships for solar propulsion-power system - cryogenic storage, solar concentrator size, and thrust level
CRYOGENIC STORAGE↗
Snap-8 corrosion program quarterly progress report, period ending 28 feb. 1965
SNAP-8 corrosion program - hydrogen solubility in sodium-potassium, permeability of hydrogen and deuterum through stainless steel, and phase equilibria
SNAP-8↗
Mechanics of a coned rotating net
Analysis of deformations, stresses, and vibration modes of rotating net in hypersonic air stream
DEFORMATION↗
Characteristics of environmental test equipment at the langley research center
Description of aerospace environmental test equipment
AEROSPACE↗
Advanced liquid propulsion systems
Advanced liquid propellants for spacecraft propulsion - nitrogen tetroxide and hydrazine
PROPULSION↗
The motion of ascending and descending spheres
Measurements of self-induced motions of spheres ascending and descending in deep water tank
Mac Cready, P. B., Jr.↗
Tensile-strength apparatus applies high strain-rate loading with minimum shock
Tensile-strength testing apparatus employs a capillary bundle through which a noncompressible fluid is extruded and a quick-release valve system. This apparatus applies the test loads at relatively constant very high strain rates with minimal shock and vibration to the tensile specimen and apparatus.
Cotrill, H. E., Jr.↗
Rotating mandrel speeds assembly of plastic inflatables
Rotating mandrel permits the accurate cutting, forming, and sealing of plastic gores for assembly of an inflatable surface of revolution. The gores remain on the mandrel until the final seam is reached. Tolerances are tightly controlled by the mandrel configuration.
Mac Fadden, J. A.↗
Remote preamplifier circuit maintains stability over wide temperature range
Circuit remains stable over a wide temperature range while preamplifying light signals falling on a photocell and transmitting them through a transmission line to a remote amplifier. The circuits preamplifier consists of a grounded emitter NPN stage followed by a PNP emitter.
Mac~naughton, R. G.↗