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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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Atmospheric and Surface Backscatter: Dynamic Range and Spatial Variability Effects on Lidar Design and Performance
Although nearly all the airborne and orbiting active laser sensors to date have operated at near nadir pointing angles, in either lidar or altimeter mode, we anticipate dual-mode instruments such as GLAS to emerge and impact the remote sensing community in the next decade.
Characterization of Global Near-Nadir Backscatter for Remote Sensing Radar Design
This characterization is performed for a variety of surface types using data from TRMM, Seasat, and Topex. An assessment of the relative calibration accuracy of these sensors is also presented.
Measurement of Aerodynamic Roughness Using Radar Backscatter Over Vegetated Surfaces
This paper describes a potential mechanism for remotely inferring the wind regime by using synthetic-aperture radar data to describe the roughness of the surface, and describes a project to estimate the practicality of such a mechanism.
Change Monitoring of Antarctic Sea Ice Using NSCAT Dual-Polarized Backscatter Measurements
Polar sea ice characteristics and the timing of seasonal transitions are important parameters in the study of polar processes and climate changes.
NDE of Hidden Flaws in Aging Aircraft Structures Using Obliquely Backscattered Ultrasonic Signals (OBUS)
Corrosion is a relatively slow material degradation process to which metallic structures of aircraft are subjected during service and it can appear in many forms.
Backscattering silicon spectrometer (BASIS): sixteen years in advanced materials characterization
A broad spectrum of materials that BASIS has explored to resolve the dynamics from pico- to nano-seconds using the quasielastic neutron scattering technique.
Modeling stimulated Brillouin backscatter from the inner laser cones during indirect drive inertial confinement fusion experiments at the National Ignition Facility
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Reflection and backscattering of IR light from free space laser plasmas in air
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Effect of Dry Electropolishing on the Electron Backscatter Diffraction Mapping of Dissimilar Titanium Welds
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The Measurement of Grain Size by Electron Beam Backscattered Diffraction
The method of electron back-scatter diffraction provides an analytic means to identify crystalline phase and the grain size of structural materials. The need to utilize imaging parameters consistent with revealing the contributing microstructural scale is often overlooked through packaged imaging scripts. It is shown that imaging parameters consistent with a post processing assessment of low misorientation angles between boundaries are achievable as using pixel sizes on the order of 10 1 nm.