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Computer program gives blade-to-blade solution of the two-dimensional, subsonic, compressible, nonviscous flow problem for a circular or straight infinite cascade of tandem or slotted turbomachine blades. The method of solution is based on the stream function using iterative solution of nonlinear finite-difference equations.
EUV emission line radiative lifetime measurement by foil-excitation technique, noting correction for cascading, He II and transition probabilities for N II and O III
Intensity ratios effect of forbidden Fe and Ca transitions in solar corona on Fe/Ca ratio, noting cascading configurations
NH emission systems radiative lifetimes and SiD and SiH transition probabilities measured, noting effects of radiative cascading
Bremsstrahlung and photoneutrons from electron- photon cascades in thick tungsten and tantalum targets bombarded with low energy electrons
Ionization spectrometer for hadron energy measurement, analyzing instrument accuracy by Monte Carlo model for nuclear-EM cascade in iron absorber
Nonequilibrium flow adjacent to cooling tube wall confining cascade arc plasma electrical discharge
Program generates initial laminar conditions, such as in Falkner-Skan similarity flows, or turbulent equilibrium profiles. Initial profile input data is used. Combination with inviscid-freestream calculations to predict entire flow field in turbine cascade or around airfoil is possible.
Computer program, TSONIC, combines velocity gradient and finite difference methods to obtain numerical solution for ideal, transonic, compressible flow for axial, radial, or mixed flow cascade of turbomachinery blades.
Synchronous counter design incorporating cascaded binary stages driven by previous stages and inputs through NAND gates
Structure of three dimensional transonic shear flow in turbomachine cascade examined in context of time dependent computer experiment
Cascade arc technique for investigating arc plasma at extremely high pressures in selected gases
Improved intranuclear cascade model for estimating cross sections in spacecraft shield design
N-port networks interconnection by NASAP-70 transfer function capability for large scale circuit problems, considering Laemmel and Cascade Parameter methods
Absorbed dose equivalent from high energy neutrons and protons incident on tissue, using nucleon- meson cascade calculations
Cascade mountains volcanic ash deposits elemental abundances correlation by computerized gamma ray spectra analysis of TRIGA reactor activated glass separates
Reduced nebular helium abundances, using capture- cascade and collisional excitation calculations
The primary cosmic ray proton and He spectra from 50 GeV to 2000 GeV have been measured by an ionization spectrometer flown on a balloon. At low energies, the energies of individual events are determined to within + or - 30%. At higher energies, the cascade is not fully contained within the four mean free path thick spectrometer and the problems of estimating the energies of these events are discussed. The proton spectrum continued with constant exponent = -2.7 + or - 0.1 up to energies greater than 1000 GeV. This spectrum was in agreement with the results at the low energies. There was no evidence for a spectral break at about 1000 GeV observed.