Problems of intense magnetic field in gravitational collapse.
Electron Dirac and Schwinger magnetic moments behavior in magnetic fields during gravitational collapse, discussing electron pair creation effects
Canuto, V.↗
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Results for “COLLAPSE”
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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Gravitational collapse of rotating bodies.
Gravitational collapse of rotating bodies and effect on induced rotation of inertial frames
Cohen, J. M.↗
Collapse loads of partially loaded shallow spherical caps
Limit analysis for collapse loads of partially loaded plastic spherical caps
Dumesnil, C. E.↗
Collapse theory of dimple craters.
Collapse theory of dimple craters, analogies with terrestrial sink holes and dimple craters as channels for gas escape from interior
Okeefe, J. A.↗
Collapsible loop antenna for space vehicle Patent
Collapsible, space erectable loop antenna system for space vehicle
Mitchum, L. L., Jr.↗
Collapsing objects and the backward emission of light
Light emission from collapsing nonrotating gas in general relativity, noting restrictions on range and frequency shift
Jaffe, J.↗
Collapse loads of partially loaded clamped shallow spherical caps
Partially loaded clamped plastic shallow spherical caps collapse loads and stress and velocity distributions
Dumesnil, C. E.↗
Application of computer processed multispectral data to the discrimination of land collapse /sinkhole/ prone areas in Florida
Collapse prone land detected by multispectral scanning and photography with analog data processing
Coker, A. E.↗
Application of remote sensing to occurance of collapse sinkholes in the Alafia and Peace River Basins, Florida
Anticipating sinkhole collapse by using remote sensors to identify and delineate relic features
Coker, A. E.↗
Collapsible nozzle extension for rocket engines Patent
Development of collapsible nozzle extension for rocket engines
Darrow, W. E., Jr.↗
Application of computer processed multispectral data to the discrimination of land collapse /sinkhole/ prone areas in Florida
Application of computer processed multispectral data in discrimination of land collapse prone areas in Florida
Coker, A. E.↗
Collapsible antenna boom and transmission line Patent
Collapsible antenna boom and coaxial transmission line having inflatable inner tube
Rainwater, L. L.↗
Collapsible structure for an antenna reflector
A collapsible support for an antenna reflector for use in supporting spacecraft antennas is described. The support has a regid base and a number of struts which are pivoted at the base. The deployment of the struts and their final configuration for supporting the antenna are illustrated.
Trubert, M. R.↗
Collapsible pistons
A piston assembly is described for use in a hypervelocity gun comprising a forward cylindrical section longitudinally spaced from a rearward cylindrical section by an intermediate section. The intermediate section is longitudinally collapsible when subjected to a predetermined force, to allow the distance between the forward and rearward sections to be suddenly reduced.
Teng, R. N.↗
Performance of an isolated two-dimensional variable-geometry wedge nozzle with translating shroud and collapsing wedge at speeds up to Mach 2.01
A wind-tunnel investigation was conducted to determine the aeropropulsion performance (thrust-minus-drag) of a single-engine, variable-geometry, two-dimensional (2-D) wedge nozzle with simulated translating-shroud and collapsing-wedge mechanisms. The investigation was conducted statically and at Mach numbers from 0.60 to 2.01 at an angle of attack of 0 deg and at varied jet total-pressure ratios up to 21, depending on the Mach number. The results indicate that the isolated aeropropulsion performance of a variable-geometry two-dimensional wedge nozzle is competitive with axisymmetric nozzles at transonic and supersonic speeds, but the isolated performance is slightly inferior for static take-off and low subsonic speeds. With the use of a simple tertiary-air ejector, the static take-off performance was increased.
Maiden, D. L.↗
Collapsible corrugated horn antenna
Lightweight readily-collapsible device utilizes conical configuration of metal rings which permit flexible wall material to be smooth and flat when unit is extended.
Barthlome, D. E.↗
Neutrino damping of nonradial pulsations in gravitational collapse
Using simple classical neutron-gas models, it is shown that neutrino radiation may in some cases be more efficient than gravitational radiation for damping out nonradial pulsations during gravitational collapse. This implies that previous estimates of gravitational radiation from neutron-star or black-hole formation following supernovae may have been overly optimistic. Final conclusions for any particular model await detailed hydrodynamic calculations. However, this paper shows that neutrino damping is potentially important in such calculations and must be taken into account.
Kazanas, D.↗
Application of computer processed multispectral data to the discrimination of land collapse (sinkhole) prone areas in Florida
Data were collected near Bartow, Florida, for the purpose of studying land collapse phenomena using remote sensing techniques. Data obtained using the multispectral scanner system consisted of various combinations of 18 spectral bands ranging from 0.4-14.0 microns and several types of photography. The multispectral data were processed on a special-purpose analog computer in order to detect moisture-stressed vegetation and to enhance terrain surface temperatures. The processed results were printed on film to show the patterns of distribution of the proposed hydrogeologic indicators.
Coker, A. E.↗