Dependence of the high‐latitude lower thermospheric wind vertical vorticity and horizontal divergence on the interplanetary magnetic field
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Y.‐S. Kwak↗
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Results for “divergence”
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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Preliminary transonic performance results for solid and slotted turbojet nacelle afterbodies incorporating fixed divergent jet nozzles designed for supersonic operation
Transonic performance of three turbojet nozzle- afterbody configurations
JET NOZZLE↗
Effect of high-velocity fluid flow on the bending vibrations and static divergence of a simply supported pipe
Fluid flow velocity effects on frequency of bending vibrations of simply supported pipe
PIPE↗
A ''critical'' tracking task for man-machine research related to the operator's effective delay time. Part I - Theory and experiments with a first-order divergent controlled element
Compensatory tracking task to measure human operators time delay characteristics and tracking ability
OPERATOR PERFORMANCE↗
Experimental performance of a low-thrust, divergent-flow, contact-ionization electrostatic thrustor
Electrostatic ion thrustor employing cesium on tungsten contact ionization for satellite attitude control and stationkeeping missions
Lathem, W. C.↗
A correlation between passive and active tests of the beam divergence of a ruby laser.
Ruby laser test using scattering as indicator of crystal performance
Mcmahon, J. M.↗
Propulsion beam divergence effects Quarterly technical report
Experimental equipment for impingement test of electrostatic rocket exhaust jet
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Propulsion beam divergence effects Quarterly technical report
Test equipment, immersion tests, and spectral distribution of solar simulator for studying effects of electrostatic rocket exhaust impingement on spacecraft
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An analysis of the divergence problem in the Kalman filter.
Modeling errors in linear discrete stochastic system effects on Kalman filter state estimates
Price, C. F.↗
Divergences of the magnetic properties of CrBr sub 3 near the critical point.
Faraday effect for magnetic properties of chromium tribromide along various isotherms near critical point, confirming scaling laws
Ho, J. T.↗
Computer programs for determination of transonic flow parameters in a convergent-divergent nozzle
Programs based on equations that include functions for boundary values along nozzle axis yield different types of flow field configurations. Program's documentation details method of calculating subsonic flow field and sonic line, and describes modified method of characteristics for calculating supersonic flow downstream of sonic line.
Jaffe, B.↗
Propulsion beam divergence effects Quarterly technical report
Chemical effects of rocket exhaust impingement on spacecraft surfaces
Hall, D. F.↗
Electrostatic propulsion beam divergence effects on spacecraft surfaces Quarterly technical report, 25 Apr. - 24 Jul. 1970
Tolerance level for deleterius effects of electrostatic rocket exhaust impinging on spacecraft surfaces
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Experimental Investigation of Flutter and Divergence Characteristics of the Rocket-Motor Fin of the ASROC Missile
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Hanson, P. W.↗
Electrostatic propulsion beam divergence effects on spacecraft surfaces, volume 2
The third phase of a program to develop understanding of and tolerance-level criteria for the deleterious effects of electrostatic rocket exhaust (Cs, Cs(+), Hg, Hg(+)) and materials of rocket construction impinging on typical classes of spacecraft (S/C) surfaces was completed. Models of ion engine effluents and models describing the degradation of S/C surfaces by these effluents are presented. Experimental data from previous phases are summarized and Phase 2 data and analysis are presented in detail. The spacecraft design implications of ion engine contaminants are discussed.
Hall, D. F.↗
Electrostatic Propulsion Beam Divergence Effects on Spacecraft Surfaces. Volume 2, Addendum 1: Ion Time-of-flight Determinations of Doubly to Singly Ionized Mercury Ion Ratios from a Mercury Electron Bombardment Discharge
The analysis of ion exhaust beam current flow for multiply charged ion species and the application to propellant utilization for the thruster are discussed. The ion engine in use in the experiments is a twenty centimeter diameter electromagnet electron bombardment engine. The experimental technique to determine the multiply charged ion abundance ratios using ion time of flight is described. An analytical treatment of the discharge action in producing various ion species has been carried out.
Sellen, J. M., Jr.↗
Perturbation and Sensitivity Inequalities in Divergence Calculations
Two theorems are given and their application discussed for handling expressions which involve matrix inversion and multiplication.
Hall, J. L.↗
Equivalence Classes of Constant Divergence and Related Results
The maximum likelihood procedure is used for dealing with the problem of classifying into one of m distinct n-variate classes, an arbitrary n-channel multispectral measurement vector x.
Decell, H. P., Jr.↗