Discrete X-ray sources - A theoretical appraisal
Discrete galactic and extragalactic X ray and gamma ray sources observation, discussing energy spectra, emission mechanisms, properties and suggested models
Burbidge, G.↗
SEARCH · Search NASA
Results for “Discretization”
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.
On the capacity of a cascade of identical discrete memoryless nonsingular channels
Capacity calculation of N identical discrete memoryless nonsingular channels cascade, discussing dependence on eigenvalues and eigenvectors of subchannel transition matrices
Simon, M. K.↗
On primal and dual methods for solving discrete optimal control problems
Primal and dual algorithms for discrete optimal control incorporating antijamming procedures
Polak, E.↗
Some relations between the discrete and continuous minimum time problems
Continuous and discrete minimum time problems relationships and state space portraits during application of optimal strategies to system
Pokoski, J.↗
Sub-optimal control of discrete systems with bounded state and control variables
Suboptimal control of discrete input system with bounded state and control variables, developing algorithm for on-line computation
Boland, J. S., III↗
Optimal control of nonlinear discrete time systems by mathematical programming
Nonlinear discrete time sampled systems optimal control by dynamic programming, with application to stochastic systems
Tabak, D.↗
A new method of recursive estimation in discrete linear systems
Gain of optimal filter and predictor, using recursive estimation in discrete linear systems
Kashyap, R. L.↗
Use of discrete sonic jets as boundary-layer trips in hypersonic flow
Discrete sonic jets as boundary layer trips producing turbulent hypersonic flows with negligible intrinsic drag and downstream distortions
Cary, A. M., Jr.↗
Exponential absolute stability of discrete systems
Nonlinear discrete systems absolute stability exponential property proved by modified frequency condition, applying analog transformation to Szego-Kalman equations
Siljak, D. D.↗
Factorization of spectra by discrete Fourier transforms
Discrete Fourier transform method for factoring spectral density functions, calculating absolute error
Rino, C. L.↗
On the stability of linear discrete dynamic systems
Equilibria stability of linear discrete dynamic systems involving elastic, nonconservative, dissipative and gyroscopic forces, using Liapunov-type energy method
Walker, J. A.↗
A survey of discrete Kalman-Bucy filtering with unknown noise covariances
Discrete Kalman-Bucy linear filtering with inaccurate noise covariances, considering optimal and suboptimal systems, error analysis, probability theory, etc
Weiss, I. M.↗
Necessary conditions for discrete parameter stochastic optimization problems
Discrete parameter stochastic optimization problems necessary conditions, deriving maximum principle
Kushner, H. J.↗
A discrete-time differential dynamic programming algorithm with application to optimal orbit transfer
Differential dynamic programming algorithm for discrete time orbit transfer optimization
Gershwin, S. B.↗
Input-output properties of multiple-input, multiple-output discrete systems. I
Linear discrete feedback systems uniqueness, existence and stability under various input-output conditions
Desoer, C. A.↗
Cold-air investigation of a turbine with transpiration-cooled stator blades. 2 - Stage performance with discrete hole stator blades
Cold air tests on axial flow turbine with transpiration cooled discrete hole stator blades to determine coolant flow ejection effect on turbine aerodynamic performance
Behning, F. P.↗
Nuclear rocket shielding methods, modification, updating, and input data preparation. Volume 4 - One-dimensional, discrete ordinates transport technique Final progress report
One dimensional, discrete ordinates transport technique for use with nuclear rocket shielding methods, modification, updating, and data input preparation - Vol. 4
Disney, R. K.↗
Nuclear rocket shielding methods, modification, updating, and input data preparation. Volume 5 - Two-dimensional, discrete ordinates transport technique Final progress report
Two dimensional, discrete ordinates transport technique for use with nuclear rocket shielding methods, modification, updating, and data input preparation - Vol. 5
Disney, R. K.↗