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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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Identification of finite memory, time discrete linear systems by Kiefer-Wolfowitz stochastic approximation procedures, presenting two algorithms for sequential identification
Double stochastic approximation algorithm for minimizing mean square error in finite expansion of unknown probability distribution functions
Trapped mode wave propagation for cold uniform magnetoplasma cylinder in free space, studying dipole modes and one-wave approximation
Stochastic approximation algorithms for adaptive linear discrete time system identification using noisy input
Temperature profile calculations for high pressure electric arcs using diffusion approximation for radiant flux density, taking energy transfer into account
Rational approximation for coefficients used in calculating hydrogenic photoionization Gaunt factors
Rotational excitation and scattering cross sections for rigid diatomic molecules reduced to yield distorted wave approximation, resulting in inelastic transition probabilities
Stochastic approximation procedure minimizing mean square error criterion for system identification, estimation and decomposition of mixtures
High energy scattering approximation valid from small to large angles, discussing errors and proton scattering by He
Approximate ionization potentials for high ionization stages of elements with atomic numbers 31 to 92 obtained by binding energy calculations
Viscous convergent-divergent nozzle flow slender channel approximations, discussing roles of nozzle geometry, Reynolds number and wall temperature, calculating velocity, enthalpy, etc
Differential approximation for radiant energy loss in nonequilibrium plasma generated from truncated Taylor series expansion of radiation source function
Impact parameter versions of two state and Born approximations to calculate single excitation cross sections of H atoms ground state collisions
Hydrogen-hydrogen excitation collisions by impact parameter treatment, investigating rotation coupling influence in four state cross sections approximation
Robbins-Monro stochastic approximation method using algorithms for identifying finite memory time-discrete time-stationary linear system from noisy input-output measurements
Uniqueness theorem and successive approximations for delay functional differential equations, noting scalar problems
Stochastic approximation applied to sampled data system parameters including sampling interval
Radiant energy transfer in absorbing and emitting media, noting approximate equations reduced to correct optically thin and thick limits for multidimensional problems