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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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Capillary gas chromatography mass spectrometry combined by molecular separators applied to methane pyrolysis product analysis
Hydrodynamics of plasma flow in pericapillary spaces, postulating fluid annulus outside capillary wall as plasma reservoir responsible for hematocrit ratios
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.
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.
Test program for capillary needle colloidal thrustor technology with various tip geometries, materials, and propellants
Fabrication of aluminum oxide thin film window for capillary type photomultiplier tubes
Intrarenal capillary hydrostatic pressure effect on hemodynamically induced changes in sodium excretion
Autoinized resonance transitions of He at 206.2- 192.2 A using He continuum produced by capillary spark, also producing He II line spectra
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.
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.
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.
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.
Liquid He surface layer thickness as function of temperature, considering capillary waves effect due to gravity
Spacecraft propellant expulsion systems, comparing capillary with conventional techniques
Development of liquid separating system using capillary device connected to flexible bladder storage chamber
Lubrication for bearings by capillary action from oil reservoir of porous material
Soldering device particularly suited to making high quality wiring joints for aerospace engineering utilizing capillary attraction to regulate flow of solder
Spacecraft propellant expulsion systems, comparing capillary with conventional techniques