A method for semi-automatically generating NaI
NaI scintillation spectrometer response function matrices semiautomatic generation, using standard source spectra to obtain normalized Compton continua
Harris, D. W.↗
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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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Operation and application of a three-stage closed-cycle regenerative refrigerator in the 6.5K region
Three-stage Gifford-MacMahon cycle regenerative refrigerator in 6.5 K region, using lead shot matrices for coldest regenerators
Cohen, B. M.↗
Stored program concept for analog computers
Optimization of three-stage matrices, modularization, and black boxes design techniques provides for automatically interconnecting computing component inputs and outputs in general purpose analog computer. Design also produces relatively inexpensive and less complex automatic patching system.
Hannauer, G., III↗
Frame modal analysis
Computer model calculates natural frequencies and modal displacements of three-dimensional frame structures, and generates stiffness and mass matrices. Structures may be divided into several substructures prior to calculation of modal characteristics.
Guyan, R. J.↗
Insolubilization process increases enzyme stability
Enzymes complexed with polymeric matrices contain properties suggesting application to enzyme-controlled reactions. Stability of insolubilized enzyme derivatives is markedly greater than that of soluble enzymes and physical form of insolubilized enzymes is useful in column and batch processes.
Billingham, J.↗
Voter comparator switch provides fail safe data communications system - A concept
System indicates status of computers and controls operational modes. Two matrices are used - one relating to permissible system states, the other relating to requested system states. Concept is useful to designers of digital data transmission systems and time shared computer systems.
Koczela, L. J.↗
Hydrogen-oxygen electrolytic regenerative fuel cells
X ray diffraction analysis of matrices of hydrogen-oxygen electrolytic regenerative fuel cells
Astrin, R. F.↗
Direct methods for the solution of systems of linear equations with sparse coefficient matrix and related topics Final report, 1 Dec. 1967 - 31 Aug. 1970
Deriving algorithms for computations involving sparse matrices
Tewarson, R. P.↗
A density matrix approach to multiconfiguration calculations
Determination of density matrix components for multiconfiguration wave functions and Hamiltonian interaction matrices
Harriman, J. E.↗
Calculation of tables of inverses and determinants of finite segments of the Hilbert matrix
Calculating tables of inverses and determinants of finite segments of Hilbert matrices using variable precision rational arithmetic
Cuthill, E.↗
Drive circuit utilizing two cores Patent
Reliable magnetic core circuit apparatus with application in selection matrices for digital memories
Zottarelli, L. J.↗
Process for producing dispersion strengthened nickel with aluminum Patent
Process for producing dispersion strengthened nickel with aluminum comprising metallic matrices embedded with oxides or other hyperfine compounds
Orth, N. W.↗
Pendulum impact resistance of tungsten-fiber metal-matrix composites
Impact strength of Cu, Cu-Ni alloy and superalloy matrices reinforced with W fibers, studying temperature, heat treatment and fiber content and toughness effects
Petrasek, D. W.↗
Pauli-algebraic operators in polarization optics
Analysis and synthesis of linear optical systems involving polarization effects by Pauli algebra of complex second order matrices
Whitney, C.↗
Geometrically nonlinear structural analysis by direct stiffness method
Modified Newton-Raphson stiffness matrices and initial value formulations to geometrically nonlinear structural analysis for beam and plane stress triangular elements
Haisler, W. E.↗
Jones's matrix representation of optical instruments. I - Beam splitters
Jones reflection and transmission matrices representation for beam splitters, investigating reversibility and action on incident light amplitude and/or phase
Fymat, A. L.↗
Computer program to generate attitude error equations for a gimballed platform
Computer program for solving attitude error equations related to gimballed platform is described. Program generates matrix elements of attitude error equations when initial matrices and trigonometric identities have been defined. Program is written for IBM 360 computer.
Hall, W. A., Jr.↗