SEARCH · Engineering Papers

Results for “attenuator”

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.

SourceResearch connectionFrom yearThrough year

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 307 records · Page 17

All sources NASA NTRS DOE OSTI

NASA NTRS1966

Solid-Propellant Rocket Exhaust Effects /SPREE/ and methods of attenuation, volume I - Project summary

Solid propellant rocket exhaust effects and methods of attenuation - project summary

SOLID PROPELLANT ROCKET ENGINE↗

NASA NTRS1966

Attenuation of sinusoidal disturbances in nonviscous liquid flowing in a long line with distributed leakage

Attenuation of sinusoidal disturbances in nonviscous liquid flowing in long line with distributed leakage

ACOUSTIC ATTENUATION↗

NASA NTRS1965

Attenuation measurements in the field

Attenuation and amplitude of P head wave measured on cinder and rock formations using wave equation

WAVE EQUATION↗

NASA NTRS1965

Velocities and attenuations of head-wave amplitudes observed in lunar analog rocks

Velocities and attenuations of seismic wave amplitudes observed in rock analog to lunar surface

WAVE ATTENUATION↗

NASA NTRS1966

Theoretical investigation of ultrasonic attenuation for free electrons in the presence of a magnetic field

Attenuation of transverse and longitudinal ultrasonic waves in presence of magnetic field for various values of phonon wave number and electron mean free path

FREE ELECTRON↗

NASA NTRS1966

A new effect in the low magnetic field ultrasonic attenuation of impure superconducting niobium

Low magnetic field ultrasonic attenuation of impure superconducting niobium

ACOUSTIC ATTENUATION↗

NASA NTRS1967

A new effect in the low magnetic field ultrasonic attenuation of impure superconducting niobium.

Changes in ultrasonic attenuation of superconducting niobium at low magnetic fields, considering effects of low critical field impurity phases

IMPURITY↗

NASA NTRS1967

Experimental investigation of harmonic ion cyclotron wave propagation and attenuation.

Harmonic ion cyclotron wave propagation and attenuation investigated experimentally

WAVE PROPAGATION↗

NASA NTRS1967

Amplitude-independent ultrasonic attenuation in superconducting lead.

Temperature and frequency effects on amplitude- independent longitudinal ultrasonic attenuation in superconducting lead

ACOUSTIC ATTENUATION↗

NASA NTRS1967

On the order parameter dependence of ultrasonic attenuation in the mixed state.

Ultrasonic attenuation measurements at high magnetic fields in mixed state for clean and dirty limits

TEMPERATURE EFFECT↗

NASA NTRS1967

Hypersonic attenuation in superconducting mercury at 9 GHz.

Longitudinal ultrasound attenuation in polycrystalline superconducting mercury at 9.3 GHz, studying temperature dependence

ACOUSTIC ATTENUATION↗

NASA NTRS2018

Hybrid Estimates of Path Attenuation for the DPR

The purpose of this study is to investigate ways to combine estimates from the Surface Reference and Hitschfeld-Bordan methods into a hybrid path attenuation estimate and to study its performance using dual-frequency radar data provided by the Dual-Frequency Precipitation Radar (DPR) on board the Global Precipitation Mission (GPM) satellite.

DPR↗

NASA NTRS1994

Improved Coupled Z-R and k-R Relations and the Resulting Ambiguities in the Determination of the Vertical Distribution of Rain from the Radar Backscatter and the Integrated Attenuation

Several algorithms to calculate a rain-rate profile from a single-frequency air- or space-borne radar backscatter profile and a given path-integrated attenuation have been proposed.

radar↗

NASA NTRS1961