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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 1,009 records · Page 56
All sourcesNASA NTRSDOE OSTI
NASA NTRS1969

Liquid laser cavities

Liquid laser cavities have plenum chambers at the ends of the capillary cell which are terminated in transparent optical flats. By use of these cavities, several new europium chelates and a terbium chelate can provide laser action in solution at room temperature.

Bjorklund, S.↗
NASA NTRS1969

Restricted-flow junction between liquids

Allowing a liquid to seep through a long crack in glass provides means for restricting its flow for long periods without attention. The length of the crack prevents the plugging to which capillaries are susceptible.

Vango, S. P.↗
NASA NTRS1970

Fuse and switch functions combined within a single housing

Fuswitch provides both switch and fuse functions within a single housing. A mercury capillary is used to alternately vaporize and condense the mercury within a reservoir. The housing is impervious to mercury and the fuse portion of the device operates on the principle of the self-healing mercury fuse.

Cohn, E. M.↗
NASA NTRS1970

Water surface depth instrument

Measurement gage provides instant visual indication of water depth based on capillary action and light diffraction in a group of solid, highly polished polymethyl methacrylate rods. Rod lengths are adjustable to measure various water depths in any desired increments.

Davis, Q. C., IV↗
NASA NTRS1970

Combining micro dry column chromatography and mass spectrometry

Dry column chromatography principles applied in microscale produce technique to minimize time in preparing and analyzing colorless constituents of soluble mixtures. Glass pipette microcolumns filled with finely sieved adsorbents permit capillary attraction and separation in 3 to 15 minutes. Technique is adaptable to gas chromatography.

Bauman, A. J.↗
NASA NTRS1970

Economic method for measuring ultra-low flow rates of fluids

Capillary tube flowmeter measures ultra-low flows of very corrosive fluids /such as chlorine trifluoride and liquid fluorine/ and other liquids with reasonable accuracy. Flowmeter utilizes differential pressure transducer and operates on the principle that for laminar flow in the tube, pressure drop is proportional to flow rate.

Bogdanovic, J. A.↗
NASA NTRS1969

Water separating system Patent

Development of liquid separating system using capillary device connected to flexible bladder storage chamber

Beauregard, W. W.↗
NASA NTRS1971

Soldering device Patent

Soldering device particularly suited to making high quality wiring joints for aerospace engineering utilizing capillary attraction to regulate flow of solder

Booth, F. W.↗