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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 199 records · Page 11

All sources NASA NTRS DOE OSTI

NASA NTRS1967

A study of the strengths and widths of lines in the 9.4 and 10.4 micron CO sub 2 bands.

Laser measurements of 9.4 and 10.4 micron lines widths and strengths in carbon dioxide

Mccubbin, T. K., Jr.↗

NASA NTRS1967

Static DC to sinusoidal AC inverter using techniques of high-frequency pulse-width modulation.

HF pulse width modulation applied to DC to sinusoidal AC inverter to provide LF sine wave output without LF transformer or filter

Babaa, I. M. H.↗

NASA NTRS1968

Semiempirical formulas for the electron-impact widths and shifts of isolated ion lines in plasmas.

Electron impact widths and shifts of isolated plasma ion lines, using Bethe-Born approximation for cross sections with semiempirical Gaunt factors

Griem, H. R.↗

NASA NTRS1968

Natural line widths of Moessbauer absorbers of variable low temperatures.

Clamping system for maintaining natural line widths of Mossbauer absorbers at varying temperatures

Dash, J. G.↗

NASA NTRS1968

A study of the strengths and widths of lines in the 9.4 and 10.4 mu CO sub 2 bands.

Strengths and widths of lines in 9.4 and 10.4 mu carbon dioxide bands by measuring transmittance vs pressure, using curve of growth method

Mccubbin, T. K., Jr.↗

NASA NTRS1967

The slow motion of a sphere through a viscous fluid towards a plane surface. II - Small gap widths, including inertial effects.

Hydrodynamic force experienced by sphere moving slowly through viscous fluid towards plane surface at small gap widths, including inertial effects

Brenner, H.↗

NASA NTRS1968

On the stability of pulse-width-modulated feedback systems.

Pulse width modulated feedback systems stability, discussing Nyquist criterion for sample data systems

Skoog, R. A.↗

NASA NTRS1968

Linear voltage-amplitude to pulse-width conversion utilizing a controlled unijunction monostable multivibrator.

Circuit for linear voltage amplitude to pulse width conversion using controlled unijunction monostable multivibrator

Hammond, W. E.↗

NASA NTRS1969

Theory for finite-width high-speed self-acting gas-lubricated slider /and partial-arc/ bearings.

Pressure distribution in finite width high speed self acting gas lubricated slider and partial arc bearings, noting trailing edge conditions and side leakage effects

Elrod, H. G., Jr.↗

NASA NTRS1969

Long-term variations in the width of Jupiter's belts

Measurements on long term variations in width of Jupiter belts

Bronshten, V. A.↗

NASA NTRS1970

Design analysis and performance of a 2.5 kVA pulse-width-modulated static inverter

Circuits and performance of pulse width modulated dc to ac static inverter

Birchenough, A. G.↗

NASA NTRS1970

Design and construction of a pulse-width- modulated signal generator, part 1 Annual report

Pulse-width modulated signal generator

Honnell, M. A.↗

NASA NTRS1969

An estimate of line width and pressure from the high resolution spectrum of Jupiter at 11,000 angstrom units

Pressure and line width estimate from high resolution image tube spectra of Jupiter at 11,000 A

Farmer, C. B.↗

NASA NTRS1969

An inexpensive multichannel scaler with channel widths of less than 1 mu sec

Multistop time-to-pulse-height conversion unit to extend capability of pulse height analyzer for multichannel time analysis with narrow channel widths

Silverberg, E. C.↗

NASA NTRS1970