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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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At least 487 records · Page 27

All sources NASA NTRS DOE OSTI

NASA NTRS1968

Cavity reactor critical experiment, volume 2

Cavity reactor critical experiments with full gaseous core of uranium hexafluoride, and mockup experiments using sheet fuel

Kunze, J. F.↗

NASA NTRS1968

A critical examination of discrete lattice and dispersed barrier hardening

Critical assessment of discrete lattice and dispersed barrier hardening theories of thermally activated deformation of metals

Ono, K.↗

NASA NTRS1967

Comparison of measured and Monte-Carlo calculated gamma dose in the tungsten water- moderated critical assembly.

Evaluation and comparison of measured and Monte Carlo calculated gamma dose in Tungsten Water-Moderated Rocket Reactor critical assembly

Klann, P.↗

NASA NTRS1967

Surface dependence of the critical pinning current density in type-II superconducting foils.

Critical pinning current density for initiating flux flow in Pb-Bi type II superconducting foils, noting dependence on surface to volume ratio

Joiner, W. C. H.↗

NASA NTRS1968

Orientational dependence of the flux-flow resistivity and critical current density in type-II superconducting foils.

Flux-flow resistivity and critical current density orientational dependence in Pb alloys type 2 superconducting foils under magnetic field, discussing Lorentz force

Joiner, W. C. H.↗

NASA NTRS1968

The lunar perturbation of the critical frequency of the F2-layer at low latitudes.

Semidiurnal lunar perturbation of critical frequency of F 2 layer at low latitudes from IGY-IGC and IQSY data

Rush, C. M.↗

NASA NTRS1968

Criticality studies of a nuclear light bulb engine.

Nuclear light bulb engine studied for critical fuel mass and design changes effects

Latham, T. S.↗

NASA NTRS1968

Critical surfaces for commercial Nb sub 3 Sn ribbon and Nb-25 percent Zr wire.

Critical surfaces for niobium stannides ribbon and niobium zirconium wire

Ahlgren, G. W.↗

NASA NTRS1968

A simplified approach for determining the information content and critical error sources of earth-based radio tracking data.

Navigational accuracy dependence on spacecraft geometry, determining information content and critical error sources of earth based Doppler radio tracking data

Curkendall, D. W.↗

NASA NTRS1969

Computer program analyzes whirl critical speeds and bearing loads for shafts coupled by nonlinear springs to machine housing

Computerized method of analysis predicts bearing loads, shaft deflections, and critical speeds for shafts coupled by rolling contact bearings to the machine housing. The bearing nonlinearities, casing as well as rotor dynamics, and rotor-imbalance forcing functions are all included in the system dynamics analysis.

Severud, L. K.↗

NASA NTRS1969

Natural gas flow through critical nozzles

Empirical method for calculating both the mass flow rate and upstream volume flow rate through critical flow nozzles is determined. Method requires knowledge of the composition of natural gas, and of the upstream pressure and temperature.

Johnson, R. C.↗

NASA NTRS1968