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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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Pneumatic flow comparator provides simple go, no-go evaluation of individual tubes. Flow characteristics of tubes used to form the walls of regeneratively cooled combustors must be identical within very close tolerances to ensure equally distributed coolant flow throughout the combustor wall.
Methods for isolation of low concentration pigments of the cocklebur species are described. The methods entail two step chromatography so that the different sorption properties of the various pigments in varying column parameters can be utilized. Columnar and thin layer methods are compared. Many conditions influence separability of the chloroplasts.
Comparative studies of some simple viscoelastic theories
Comparative evaluation of ablative materials in arc plasma jets
Analysis of comparators used in CSM high gain antenna tracking system
Comparative braking performance of various aircraft on grooved and ungrooved pavements
Comparative models of magnetoplasma, discussing wave propagation in cold plasma, warm plasma and microscopic model
Continuous IR radiation source using electrically heated Mo ribbon, comparing emission from V shape and flat portions
Air and saline P-V curves of rat lungs after hyperoxia, comparing hyperoxia effects to surfactant washout on pulmonary compliance
Hyperoxia compared to surfactant washout on pulmonary compliance in rats
Comparative performance analysis of double focused and quadrupole mass spectrometers
Sharpness of cracks compared with Wells crack opening displacements
Comparative in-flight thrust measurements of SERT 2 ion thrustor
Comparative evaluation of attitude control system
FM threshold extension for system performance improvement, comparing impulse noise elimination, correlation detection and delta modulation signal processing techniques implemented at demodulator output
Optical image comparator for examination of field ion micrographs
Luminescence petrography of Apollo 12 rocks and comparative features in Apollo 11 rocks, terrestrial rocks, and meteorites
Development of pulsed differential comparator circuit