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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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Two experiments were carried out during the 1997 winter season across the Straits of Mackinac and Lake Superior. C-band radar backscatter signatures of various ice types and open water were measured.
The overall scope of this NESC study was to identify (or develop) a tool, methodology, or process that can inspect a ceramic capacitor and consistently return repeatable grain size distribution results. It is important to note that the development of a machine learning technique was considered as an option for this study, but only if an existing automated tool was not available. This report explains why the Electron Backscatter Diffraction analysis method for grain structure and size distribution was deemed a suitable candidate for this work.
Coupling between oppositely directed traveling waves in He-Ne ring laser in form of mutual backscattering of energy from each beam into direction of other
Diurnal variation in electron densities and temperatures in F region above Puerto-Rico, using backscatter measurements
Alpha particle backscattering performs a chemical analysis of surfaces. The apparatus uses a curium source and a semiconductor detector to determine the energy spectrum of the particles. This in turn determines the chemical composition of the surface after calibration to known samples.
Transmission, and backscatter coefficients for electron irradiated aluminum, and stainless steel foils
Laser light backscatter investigation of air flow velocity in contaminated atmospheres for application to clear air turbulence detectors
Investigating Venus backscattering by Doppler effect on reflected radar signals
Incoherent backscatter observations of F region during solar eclipse
External biosensor using optical backscatter for continuous determination of blood oxygenation in humans and animals
Enhanced radiation backscatter, using ground based ruby laser output and jet aircraft-borne instruments, correlated with clear air turbulence
Electron content and equivalent slab thickness from radar backscatter measurements, noting F layer peak height and electron and ion temperatures diurnal variation
Lunar radar backscattering data for Apollo program obtained over lunar-like terrain by scatterometer using echoes from fan-beam antenna
Backscatter and diffusion for fast cosmic ray charged particles in random magnetic field
Ground based optical radar backscatter observations of local aerosol concentrations correlated with clear air turbulence experienced by jet aircraft
Optical radar measurement of backscattering from mesopause region during July and August 1967
Comparison of radar backscatter and rocket probe measurements of ionospheric electron temperature
Documentation of Explorer 32 electron temperature measurements used in comparisons with backscatter measurements at Jicamarca