SEARCH · Engineering Papers
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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Long period of nonperiodic librational motion about equilateral points of restricted three-body problem
Longitude distribution of solar proton flares as function of recurrence period
Electric analog simulation of periodic nonuniform heat transfer mechanism in film boiling from coated plate
Atmospheric tides, shorter period gravity waves and shear waves
Long period hydromagnetic waves in magnetosphere and coupling to solar wind studied by Explorer XIV
Periodic motion around triangular libration point in restricted four-body problem of earth-moon-sun system
Flux, energy distribution and density of ions and electrons in magnetosphere plasma during solar activity period determined by OGO-C electrostatic probes
Short period seismic radiation patterns from underground nuclear explosions and small magnitude earthquakes, noting propagation characteristics
Circadian periodicity, adrenal corticosteroid, and electroencephalogram of normal man
Computer program uses an iterative method to construct precisely periodic orbits which dynamically approximate solutions that converge to precise dynamical solutions in the limit of the sequence. The method used is a modification of the generalized Newton-Raphson algorithm used in analyzing two point boundary problems.
Long period variations in eccentricity and perigee for Nimbus 2 explained in terms of earth zonal harmonic coefficents, plus first order earth oblateness perturbations
Compression of plasmasphere during geomagnetically disturbed periods
Prototype space flight experiment package for study of circadian periodicity in pocket mice
Period analyses of continuous electroencephalogram recordings on Gemini 7 pilots during orbital flight
Methods of eliminating short period terms from Hamiltonian by means of canonical transformation
Secular acceleration of periodical motion of comets
Neutral hydrogen period in hot model universe evolution
Unsteady heat transfer from closed gas system to plane metal surface with periodic pressure and temperature oscillations on gas