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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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This dataset contains raw data from the CLAMPS 1 Halo Photonics StreamLine Doppler Lidar at the Rolling Meadows Golf Course site. CLAMPS 1 deployed during fall-winter 2022 (10/3/22-12/27/23) and summer-fall 2023 (6/16/23-10/1/23).
This dataset contains thermodynamic profiles retrieved through TROPoe from AERI data at the Rolling Meadows Golf Course in Oklahoma.
We present an improved analysis of the energy spectrum of energetic neutral hydrogen from the heliosheath observed with the IBEX -Lo sensor on the Interstellar Boundary EXplorer from the years 2009 to 2012. This analysis allows us to study the lowest energies between 10 and 100 eV although various background sources are more intense than the targeted signal over broad areas of the sky. The results improve our knowledge of the interaction region between our heliosphere and the interstellar plasma because these neutral atoms are direct messengers from the low-energy plasma in the heliosheath. We find a roll-over of the energy spectrum below 100 eV, which has major implications for the pressure balance of the plasma in the inner heliosheath. The results can also be compared directly with in situ observations of the Voyager 1 and 2 spacecraft.
Cold rolling and aging effects on sharp-notch properties of beta titanium sheet alloy
An extensible boom, carrying three separate electric conductor tapes, can be rolled into a compact storage drum. The tape is curved in cross section so that the boom automatically forms a tube as it is extended.
Five-ball fatigue tester and rolling-contact disk machine used to study elastohydrodynamic lubrication effect on fatigue life
Viscous damping in roll of blunt body and hemisphere-cone forebody during planetary entry
Potential of oil lubricated rolling-element bearing system for Brayton cycle space power turbomachinery
Pressure distributions on flat plate delta wing swept 65 deg at hypersonic speeds at angles of attack from 65 deg to 115 deg and angles of roll from 0 deg to 25 deg at 90 deg angle of attack
Free flight tunnel testing of swept wing aircraft model to determine roll effectiveness of differentially deflected horizontal tail
Analytical investigation of reentry behavior of flying wind tunnel test vehicle with some effects of threshold and torque level of roll-rate control system
Ductility and production techniques of cross rolled beryllium sheet
Rolling-element bearing material technology, examining fatigue effect of material properties and processing variables
Five-ball fatigue tester makes possible the study of rolling element phenomena. The device consists of a driven test ball pyramided upon four lower balls positioned by a separator and free to rotate in an angular contact raceway.
Early detection method locates damage or small defects in rolling element bearings of critical machine components. This detection method operates on the principle that an impact is generated each time a defect in an otherwise smooth surface is in intimate moving contact with another smooth surface.
Plastic deformation during cold rolling of high strength titanium alloy strips