Modification of DSIF SCM feeds Final report, 11 Jun. 1963 - 7 Jan. 1964
Multimode rectangular horn for pattern shaping and monopulse capability in Cassegrain antenna feed
TRACKING ANTENNA↗
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Results for “Feed”
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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Experimental investigation of a high-voltage isolation device for ion-thrustor propellant feed
Operating range extension of high voltage isolation device for propellant feed system of ion thrustor
THRUSTOR↗
Cassegrain antenna feed system, model ASF-108 FINAL engineering report
Design and performance characteristics of Cassegrain antenna feed system
FEED SYSTEM↗
Surface tension storage and feed systems for ion engines.
Zero-g vapor feed system with no moving parts, noting ion engine testing, propellant use efficiency and surface tension storage
WEIGHTLESSNESS↗
A zero gravity mercury propellant feed system.
Zero-gravity mercury feed system for mercury- electron bombardment spacecraft engines
MERCURY VAPOR↗
Synthesis of improved feeds for large circular paraboloids.
Improved feed synthesis using multimodes for large circular paraboloids at Parkes
PARABOLIC REFLECTOR↗
Surface tension storage and feed systems for ion engines.
Surface tension propellant storage and feed systems for zero-g ion engines
PROPELLANT STORAGE↗
Propellant feed ducting and engine gimbal lines for the Saturn vehicle
Liquid propellant feed ducting and engine gimbal lines for Saturn vehicles
LIQUID PROPELLANT↗
Analytical and experimental study of boiler instabilities due to feed-system - Subcooled region coupling
Instabilities occurring in forced-flow, electrically heated, downflow boiler due to feed system-subcooled region coupling
INSTABILITY↗
Flow meter and prototype mercury feed system development Summary report, 14 Jun. 1965 - 5 Feb. 1967
Flow meter and prototype mercury propellant feed system
FEED SYSTEM↗
Antenna feed efficiency
Program for computing efficiency of circular paraboloidal antenna feed system
ANTENNA↗
Slow speed tachometer for measuring weld wire and carriage feeds
Slow speed tachometer for measuring weld wire and carriage feeds
TACHOMETER↗
A turnstile conical-scan feed to improve tracking-antenna performance on Apollo instrumented ships
Turnstile conical scan feed to improve tracking antenna performance on Apollo-instrumented ships
TELEMETRY↗
Dual turbopump liquid hydrogen feed system experience
Design and development of dual turbopump liquid hydrogen feed system
ENGINEERING DEVELOPMENT↗
The design of a very high power, very low noise Cassegrain feed system for a planetary radar.
Cassegrain feed for 85-ft-diam antenna of planetary radar system noting operative conditions, polarization capabilities and performance data
FEED SYSTEM↗
Aerospace feeding - acceptability of bite-size and dehydrated foods.
Space flight feeding - acceptability of bite-size and dehydrated foods
DIET↗
Feeding-associated alterations in striatal neurotransmitter release
Published evidence suggests a role for dopaminergic (DA) brain pathways in feeding-associated behaviors. Using the novel technique of brain microdialysis of striatal extracellular fluid (ECF) as an index of DA release, Church et al. described increases in levels of DA when animals had limited access to pellets, but not with free access. Dopamine release from the nucleus accumbens did increase with free access to pellets post starvation or after food reward. We used permanently implanted microdialysis probes to measure ECF levels of DA, DOPAC, HVA, and large neutral amino acids (LNAA) for up to 72 hours after implantation among rats experiencing different dietary regimens.
NASA Discipline Regulatory Physiology↗
Improved Optimization Method for Array Feed Calculations
Reflector antenna optimization schemes using array feeds have been used to recover antenna losses resulting from antenna distortions and aberrations and to generate contour coverage patterns.
focal plane array feed antennas gain optimization ↗