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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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Development and flight test of inflatable disk- gap-band parachute for high altitude deployment from sounding rockets
Theoretical transit time of magnetostatic spin waves propagated at microwave frequencies in normally magnetized disk
Evaluation of absolute free energy of rigid-disk system at very high compression
Upper and lower bounds on partition functions for finite systems of rigid disks and spheres for high density limit
Spiral patterns of disk-like galaxies explained in terms of density waves that are collective modes of stellar system analogous to plasma waves
Quick-opening, intermittent flow valve requires a small amount of electrical energy to open and which closes by the restoring action of a rubber stop. This eddy current disk valve opens in less than 100 microseconds and takes only 10 joules of energy.
Nonlinear waves in plasmas and disk-like galaxies
Photometric study of brightness distribution across Martian disk, and analysis of limb darkening
Flight test of disk-gap band parachute deployed at low supersonic speed and low dynamic pressure to obtain performance data on planetary entry parachute configurations
Stability and dynamical response of small portions of differentially rotating stellar disks, noting decaying nonaxisymmetrical instabilities, epicyclic frequency, surface density, etc
Secular increase of stellar noncircular velocities in disk portions of galactic systems, noting gravitational disturbances
Computer program determines the natural frequencies of a turbine disk of variable thickness subjected to uniform rotation and radial temperature gradients by using Rayleigh-Ritzs procedure. The program involves the potential and kinetic energy expressions for a circular flat plate of variable thickness.
Inflation, and drag characteristics of disk gap band parachute in simulated low density Mars atmosphere
Magnetohydrodynamic flow of incompressible viscous electrically conducting fluid over rotating disk
Flight test of l0-foot nominal-diameter disk-gap band parachute to determine deployment and inflation, opening shock loads, drag efficiency, and stability characteristics
Flow and temperature field analysis of a plane disk slinger seal
Partially wetted rotating disk theory, obtaining pressure gradient, frictional resistance and flow characteristics