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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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Trajectories for launch vehicles and approximate solution for propagation of covariance matrix of errors through thrust and coast
Modification of a McLeod gage eliminates errors in measuring absolute pressure of gases in the vacuum range. A valve which is internal to the gage and is magnetically actuated is positioned between the mercury reservoir and the sample gas chamber.
Neon isotopes cancel frequency pushing errors arising from unequal gain in the two contracirculating beams of a helium-neon filled discharge tube used in a ring laser.
Error in induced electric field modes under Stix coil resulting from assumption of orthogonality of natural plasma mode - Bessel function
Error minimization in shock tube investigation of bromine dissociation rates in presence of rare gases
Transmission system with degradation of binary coded data due to bit errors
Analysis of thermal test errors resulting from imperfectly collimated solar simulation beams - relative energy flux density and relative energy in penumbrae of various shadowing objects
Tracking errors at S-band and C-band frequencies resulting from diurnal, seasonal, and annual changes in earths atmosphere
Distinctive features and errors in short term memory for English vowels
Errors in Gemini rendezvous radar interferometer due to antenna ellipticity and coupling of adjacent antennas
Diurnal temperature and wind variation measured by instrumentation aboard meteorological rockets - detection of possible errors in temperature measurements in upper stratosphere
Error analysis of celestial-inertial navigation for low thrust electrically propelled interplanetary space vehicles
Influence on trajectory determination of error in tracking station location and station time and frequency synchronization
Analysis of integration error in lunar orbit trajectory program and effect of selenopotential parameters on solution vector
Linearized error analysis of onboard primary navigation systems for Apollo lunar module
Parasitic torques of squeeze-film cylindrical journal bearings in output axis of high performance gyroscopes, discussing tolerance errors
Apparatus reduces Time Base Error /TBE/ in the playback of digital data from magnetic recording equipment. The apparatus uses a magnet which employs a servo position control of the tape by which the playback data clock is phase locked with a fixed frequency reference signal.
Dynamic simulation errors for coupled loop models for digital differential and electronic differential analyzers