On the interchange stability of the Van Allen belt
Interchange stability of Van Allen belt in electrostatic approximation
RADIATION BELT↗
SEARCH · Search NASA
Results for “interchangeable”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
A general computer program for the determination of radiant-interchange configuration and form factors - Confac I
Numerical method for determining geometric radiant interchange factors used in radiant heat transfer and illumination - Fortran IV digital computer program utilizing method
NUMERICAL ANALYSIS↗
A general computer program for the determination of radiant-interchange configuration and form factors - Confac II
General computer program for determining radiant- interchange configuration and form factors used in radiant heat transfer and illumination
ILLUMINATION↗
Ionospheric stabilization of the interchange mode
Ionospheric stabilization of interchange mode for stability analysis of particles trapped in radiation belt
STABILIZATION↗
Corrections and additions to the paper entitled ''On the interchange stability of the Van Allen belt.''
Approximation error on interchange stability of Van Allen belt corrected
MAGNETOHYDRODYNAMIC STABILITY↗
Laboratory arc furnace features interchangeable hearths
Laboratory arc furnace using rapidly interchangeable hearths gains considerable versatility in casting so that buttons or special shaped castings can be produced. It features a sight glass for observation.
Armstrong, J. L.↗
X-ray source uses interchangeable target anodes to vary X-ray wavelength
Compact laboratory X ray tube generates X rays of various wavelengths by using interchangeable target anodes. The wavelength of the X rays depends on the metal from which the anode is made.
Shields, R. A.↗
Ionospheric stabilization of the interchange mode.
Ionospheric stabilization of interchange mode calculation applied to electron debris of Star Fish event, noting role of ionospheric current
STAR FISH PROJECT↗
Interchange of group C beta hemolytic streptococci among dogs and monkeys confined in dynamic flow atmospheric systems
Interchange of group C beta hemolytic streptococci among dogs and monkeys confined in dynamic flow atmospheric systems
King, J. G., III↗
Two notes on perturbation theory. 1 - Interchange theorems and the variation principle. 2 - PV in a different notation
Interchange theorems and variational principle in perturbation theory
Epstein, S. T.↗
LM and CSM S-band antenna tracking studies. Electronics assembly interchangeability study. Volume 1 - Small signal analysis
Small signal characteristics and estimated limits of interchangeable electronics assembly for Apollo tracking antenna system
Robinson, L. H., Jr.↗
Empirical determination of radiation interchange factors Final report
Techniques for measuring radiant interchange factors relative to spacecraft thermal design
Bobco, R. P.↗
Surface roughness effects on radiant energy interchange
Surface roughness effects on thermal radiant energy interchange between opaque interacting surfaces formulated for unequal temperature adjoint plates
Hering, R. G.↗
Radiation interchange factors Quarterly report, 7 Jun. - 1 Sep. 1968
Empirical and analytical techniques for determining thermal radiation interchange factors
Source record↗
Experimental determination of radiative interchange factors - Analytical basis and exploratory measurements
Total radiative interchange kernel measurements, describing remote excitation/detection
Bobco, R. P.↗
Laboratory method for assessing homogeneity and interchangeability of thermocouple wires
Laboratory method assessing homogeneity and interchangeability of thermocouple wires, considering thermoelectric properties of widely separated wire from same spool
Powell, R. L.↗
Connector interchangeability
The application is discussed of the general rules of ANSI Y14.5 in designing connectors for interchangeability, and lowering costs. The general rules are applied to actural connector designs, and existing specifications are identified that (1) reject better quality products than those accepted, (2) accept products which should be rejected, and (3) impose unnecessary, nonfunctional costly requirements.
Berilla, T.↗
Accretion onto magnetized neutron stars - Structure and interchange instability of a model magnetosphere
A self-consistent model is analyzed for the spherical infall of weakly magnetized plasma into the magnetosphere of a slowly rotating, strongly magnetized neutron star. It is shown that spherical infall is probably a good approximation for X-ray sources which accrete from a stellar wind. The location of the standoff shock which halts the hypersonic infall is estimated along with the emission from the shocked layer. The location of the equilibrium magnetopause and the structure of the magnetic field within it are calculated; it is found that the magnetic poles are true cusps and that the entry of gas due to equilibrium flow across a cusp is almost certainly dominated by the interchange instability near the magnetic equator. The energy principle is applied to derive necessary conditions for the occurrence of this instability. The results indicate that the strong magnetic-pressure gradient stabilizes the gas unless moderately strong radiative cooling takes place and that the cooled plasma enters the magnetosphere as long filaments capable of moving between field lines. The rate at which the equilibrium magnetopause can 'absorb' mass and momentum is derived, the validity of the approximations employed is discussed, and the likely evolution of the sinking filaments is outlined to show that the spatial distribution of the plasma is determined mainly by the dynamics and thermodynamics of the filaments rather than the magnetic-field structure.
Arons, J.↗