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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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Computer program constructs lists of xy-coordinate pairs that define contour curves for an arbitrary given function of two variables and transmits these lists to plotting equipment to produce contour plots. The principal subroutine, CONTUR, is independent of any specific system of plotting subroutines and equipment.
Computer program synthesizes a passive network by minimizing the difference in desired and actual frequency response. The program solves for the critical points of the error function /weighted least squares fit between calculated and desired frequency response/ by the multivariable Newton-Raphson method with components constrained to an admissible region.
Computer program calculates ideal gas thermodynamic properties for any species for which molecular constant data is available. Partial functions and derivatives from formulas based on statistical mechanics are provided by the program which is written in FORTRAN 4 and MAP.
Flexible, large scale digital computer program was designed for the solution of a wide range of multivariable parameter optimization problems. The program has the ability to solve constrained optimization problems involving up to one hundred parameters.
Computer programs for digital simulations of nominal interplanetary free fall trajectories
Computer programs for simulating booster nominal trajectories for interplanetary missions
Computer program for calculating off-design aerodynamic performance of axial flow compressor
Current computer programs for low thrust trajectory analysis using flyby and rendevous trajectories
Computer programs for generating lunar physical ephemeris
General computer program for calculating axisymmetric temperature field applied to gas turbine face seal thermal deformation
Computer programs for fuel sloshing in rigid axisymmetric tanks
On-line computer programs allowing for man machine interactions in linear circuits design
User guide for Langley time series analysis computer program used in analyzing random, stationary time series
Computer program documentation and user manual for steady state attitude control propulsion system - vol. 1
FORTRAN 4 computer program for gamma ray energy spectra, determining peak locations, peak areas and elemental abundances
Computer program for interpretation of residual gas analyzer mass spectra, considering vacuum environmental testing of spacecraft
Computer program is described for numerical solution of chemical equilibria in complex systems by using nonlinear algebraic equations. Free-energy minimization technique is used.
Conference papers on automated methods of computer program documentation