On-line simulation of block-diagram systems.
Time and space on-line simulation of analog, digital and hybrid block diagram systems
Dertouzos, M. L.↗
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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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Estimation of gamma phase composition in nickel-base superalloys /based on geometric analysis of a four-component phase diagram/
Estimation of gamma phase composition in nickel base heat resistant alloys based on analysis of quaternary phase diagrams
Dreshfield, R. L.↗
Apollo logic diagram analysis guideline
Standardization guidelines for Apollo logic diagram in system safety analysis
Pleas, D. R.↗
Predicting ternary phase diagrams and quaternary excess free-energy using binary data
Ternary phase diagrams and quaternary excess free energy prediction using binary data, applied to Pb-Sn-Zn, Ag-Pd-Cu and Pb-Sn-Cd-Bi systems
Olson, N. J.↗
Magnetic phase diagram of Cs3Cu2C17.2H20
Magnetic phase diagram of hydrated cesium-copper carbide at 1.625 Neel temperature in external magnetic fields, giving equation for spin flop field temperature dependence
Butterworth, G. J.↗
On the use of slowness diagrams to represent wave reflections
Plane wave reflection decay rate representation by slowness diagrams
Crandall, S. H.↗
The log S-log z diagram for radio galaxies and its relation to cosmology
Log S /flux/-log Z /redshift/ diagram for radio galaxies, encouraging steady state cosmology
Burbidge, G. R.↗
Interpretation of the colour-colour diagram of M92
Color-color diagram of M92, computing synthetic stellar spectra for line absorption effect
Bell, R. A.↗
Mass loss, rotation, and the location of red supergiants in the H-R diagram
Red supergiants location in H-R diagram, discussing significance of mass loss, rotational mixing and neutrino emission as stellar model mechanisms
Chin, C.-W.↗
Thermochemistry of Cesium-oxygen Solutions and Their Gaseous Atmospheres, Estimated from a Phase Diagram
Thermochemistry of cesium-oxygen solutions and their gaseous atmospheres estimated from phase diagram
Tower, L. K.↗
Electromagnetic wave propagation and wave-vector diagram in space-time periodic media.
Analysis of TE and TM wave propagation in space-time periodic media such as dielectrics, isotropic plasmas and uniaxial plasmas. A numerical solution is obtained for media with sinusoidal periodicity. Wave-vector diagrams are plotted to facilitate studies of dipole radiation, wave propagation in waveguides and wave interactions with a half-space.
Elachi, C.↗
MIDAS, prototype Multivariate Interactive Digital Analysis System, phase 1. Volume 3: Wiring diagrams
The Midas System is a third-generation, fast, multispectral recognition system able to keep pace with the large quantity and high rates of data acquisition from present and projected sensors. A principal objective of the MIDAS Program is to provide a system well interfaced with the human operator and thus to obtain large overall reductions in turn-around time and significant gains in throughput. The hardware and software generated in Phase I of the overall program are described. The system contains a mini-computer to control the various high-speed processing elements in the data path and a classifier which implements an all-digital prototype multivariate-Gaussian maximum likelihood decision algorithm operating at 2 x 100,000 pixels/sec. Sufficient hardware was developed to perform signature extraction from computer-compatible tapes, compute classifier coefficients, control the classifier operation, and diagnose operation. The MIDAS construction and wiring diagrams are given.
Kriegler, F. J.↗
Flight control systems properties and problems. Volume 2: Block diagram compendium
A compendium of stability augmentation system and autopilot block diagrams is presented. Descriptive materials for 48 different types of aircraft systems are provided. A broad representation of the many mechanical approaches which have been used for aircraft control is developed.
Johnston, D. E.↗
Spectrophotometry of faint cluster galaxies and the Hubble diagram - An approach to cosmology
New spectrophotometric data are presented for large-redshift galaxies in clusters. A new approach to aperture corrections and the analysis of the Hubble diagram is outlined, including the explicit incorporation of evolutionary effects. The importance of selection effects on the usual methods of analysis are in principle overcome in the analysis, although the heterogeneity of the sample still makes conclusions about cosmology slightly suspect. Formal values of the deceleration parameter are derived under several sets of assumptions, yielding results between +0.33 and -1.27 with formal standard deviations of order 0.7.
Gunn, J. E.↗
Redetermination of the Fe-rich portion of the Fe-Ni-Co phase diagram
The iron rich portion of the Fe-Ni-Co ternary diagram was determined at four temperatures. The phase boundaries and tie-lines of the (alpha + gamma) phase field were measured by analyzing the alpha and gamma phases with an electron microprobe. Grain boundary allotrimorphs of the alpha phase were observed in the polished and etched sections of samples which were step cooled from the gamma phase into the (alpha + gamma) region. Widmanstaetten-type microstructures composed of gamma-precipitates were observed in samples which were directly heated from room temperature into the (alpha + gamma) region.
Widge, S.↗
Minimal-resource computer program for automatic generation of ocean wave ray or crest diagrams in shoaling waters
A computer program for studying linear ocean wave refraction is described. The program features random-access modular bathymetry data storage. Three bottom topography approximation techniques are available in the program which provide varying degrees of bathymetry data smoothing. Refraction diagrams are generated automatically and can be displayed graphically in three forms: Ray patterns with specified uniform deepwater ray density, ray patterns with controlled nearshore ray density, or crest patterns constructed by using a cubic polynomial to approximate crest segments between adjacent rays.
Poole, L. R.↗
The phase diagram and transport properties for hydrogen-helium fluid planets
The properties of pure hydrogen and helium are examined, taking into account metallic hydrogen, molecular hydrogen, and the molecular-metallic transition. Metallic hydrogen-helium mixtures are considered along with molecular hydrogen-helium mixtures, the total phase diagram, and minor constituents, including deuterium. The transport properties of the metallic and the molecular phase are also discussed, giving attention to electrical conductivity, thermal conductivity, viscosity, self-diffusion, interdiffusion, radiative opacity, and second-order transport coefficients.
Stevenson, D. J.↗