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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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Drill with modified cutting faces permits one-step drilling operation without chatter upon contact and premature wear. The modification of the drill, which has the same diameter as that of the desired hole, consists of a groove across the bottom of each of the cutting faces of the drill flutes.
Spectra and space-time correlations of fluctuating pressures at wall beneath supersonic turbulent boundary layer perturbed by steps and shock waves
Gas dynamics in nonequilibrium two-step rocket nozzle design
One-step methods for numerical integration of initial value problems in ordinary differential equations applied to celestial mechanics
Rectangular-to-cylindrical stepped mode transducer using homogenous waveguides for efficient antenna systems
Unsteady heat transfer from rotating disk due to step change in local wall heat flux with large suction
High speed fluidic logic circuitry for pneumatic stepping motor
Initial steps in oxidation of nickel surface studied using low energy back-reflection electron diffraction
Simulated space environment life testing of step- servo assembly for radiation experiments on OSO D satellite
Predictor-corrector algorithm applicable to numerical integration of satellite orbits in multirevolution steps
High speed fluidic logic circuitry for pneumatic stepping motor
Analysis divided into step and ridge regions used to obtain linearized PH solution to Reynolds equation, neglecting side leakage
Stepping drive has been designed for precise incremental angular positioning of scale models of spacecraft about a horizontal axis in order to accurately measure antenna receiving and transmitting characteristics. Positioning is insured by spring-loaded, self-locking plungers.
Magnetic core circuit for supplying power to bi-directional stepping motors
Multi-step Runge-Kutta methods using method of quadratures
Breadboard flueric circuitry used to drive pneumatic stepping motors