Low-frequency sound velocity in CO sub 2 near the critical point
LF sound velocity measurement in carbon dioxide near critical point, noting existence of logarithmic divergence
Carome, E. F.↗
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Results for “sounding”
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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Attenuation of sound in soft-walled circular ducts
Broadband sound attenuation in soft walled /low acoustic impedance/ circular ducts found dependent on frequency
Rice, E. J.↗
A preliminary analysis technique for speech sound classification
Analysis method permitting English speech sound recognition by computer for different speakers
Niederjohn, R. J.↗
Personality and respiratory responses to sound and light
Ego strength relationship to respiration in response to sound and light simulation tested in subjects balanced for alertness-drowsiness by EEG criteria
Burch, N. R.↗
Sound radiation from rigid flow spoilers correlated with fluctuating forces
Sound radiation from rigid flow spoilers correlated with fluctuating forces, measuring jet-pipe drag and lift components with transducers
Heller, H. H.↗
A gyroless control system for sub-arc-second solar pointing of a sounding rocket payload
Gyroless attitude control system for pointing Aerobee sounding rocket payload at sun using solar sensors
Gabris, E. A.↗
Statistical models of the density and wind profiles in the mesosphere based on 208 soundings
Statistical mesosphere temperature, density and wind profiles models based on rocket soundings
Casey, J. F.↗
Possibilities for sounding the atmosphere from a geosynchronous spacecraft
Atmospheric vertical temperature sounding from geosynchronous satellite, discussing instrumentation, cloud cover and wind effects, etc
Krauss, R.↗
Attenuation of plane wave and higher order mode sound propagation in lined ducts
Perturbation method to obtain analytical expressions for attenuation of plane wave sound propagation in lined ducts
Doak, P. E.↗
Collection efficiency for inertial impaction and sounding rocket collection of meteoric dust
Meteoritic dust collection in upper atmosphere by sounding rocket, discussing efficiency of sampling configurations for inertial impaction
Kornblum, J. J.↗
Radiation of sound from an unflanged circular duct with flow
Sound radiation from unflanged circular waveguide duct with flow, calculating reflection coefficients, directivity pattern and power for comparison with approximate methods
Drischler, J. A.↗
A new reaction control approach for sounding rockets
High performance reaction pointing control systems for sounding rockets, using proportional control of differential thrust and adaptive control of thrust magnitude
Gabris, E. A.↗
Tone-burst technique measures high-intensity sound absorption
Tone-burst technique, in which narrow-bandwidth, short-duration sonic pulse is propagated down a standing-wave tube, measures sound absorbing capacity of materials used in jet engine noise abatement. Technique eliminates effects of tube losses and yields normal-incidence absorption coefficient of specimen.
Powell, J. G.↗
Simultaneous measurement of atmospheric dust by laser and balloon sounding techniques Final report, 1 Nov. 1968 - 30 Jun. 1970
Simultaneous measurement of atmospheric dust by laser and balloon sounding
Rosen, J. M.↗
Sound propagation from a moving source Final report
Application of ray tracing method to computer program for estimation of sound intensity from rising space vehicle
Buell, C. E.↗
Techniques for evaluating the sound absorption of materials at high intensities
Shock tube procedure and tone-bust technique for evaluating sound absorption of materials at high intensities
Powell, J. G.↗
Attitude control system for sounding rockets Patent
Development of attitude control system for sounding rocket stabilization during ballistic phase of flight
Robbins, H. J.↗
Relations among loudness, loudness level, and sound pressure level
Numerical analysis of loudness, loudness level, and sound-pressure level of pure tones of steady noise that does not exceed critical bandwidth
Howes, W. L.↗