Production of Low Concentration Particulate Aerosols by a Sonic Disseminator Technique
Ultrasonic vibrator for producing stable, low concentration, bacterial spore aerosol
ULTRASONICS↗
SEARCH · Engineering Papers
Results for “Particulates”
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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Particulate damping in solid propellant combustion instability.
Aluminum powder damping of HF instability in solid propellant combustion in vortex burner
COMBUSTION STABILITY↗
Remote size measurements of particulate products of heterogeneous combustion.
Rocket chamber pressure influence on particle size measurements of heterogeneous combustion products of solid propellants containing aluminum
COMBUSTION PRODUCT↗
Particulate damping in solid-propellant combustion instability.
Aluminum powder damping of HF instability in solid propellant combustion in vortex burner
SOLID PROPELLANT↗
An experiment on particulate damping in a two- dimensional hydrogen-oxygen combustor
Damping in two dimensional hydrogen-oxygen combustor
Heidmann, M. F.↗
A new method for the determination of particulate contamination levels for surface cleanliness of fluid systems
Levels of contamination in fluid systems can be determined by a definition of a particle by a mathematical model, a method for calculating the tolerance limits of contamination, and an estimation of the probability that the contamination on the surface will migrate with the fluid in the system.
Source record↗
Study of environmental effects upon particulate radiation induced absorption bands in spacecraft thermal control coating pigments Final report, 22 May 1967 - 27 Jan. 1969
Environmental effects of charged particle and simulated solar electromagnetic radiation on optical properties of spacecraft thermal control materials
Source record↗
Infrared emissivities of silicates - Experimental results and a cloudy atmosphere model of spectral emission from condensed particulate mediums.
IR emissivities of powdered silicates and cloudy atmosphere model of spectral emission for radiative transfer in condensed powder
Conel, J. E.↗
A study of environmental effects upon particulate radiation-induced absorption bands in spacecraft thermal control coating pigments.
Simulated solar wind environment effects on zinc oxide/potassium silicate and lanthanum oxide/ potassium silicate spacecraft thermal control coating pigments
Douglas, N. J.↗
Thermal conductivity of a particulate sample in an environment that simulates the planet Mars
Thermal conductivity tests on glass particles in simulated Martian environment
Fountain, J. A.↗
Definition of experimental studies for determining gaseous and particulate cloud environment of manned spacecraft and applications to cometary physics Final report
Cosmic gas environment surrounding manned spacecraft
Lilienfeld, P.↗
Mineralogy and petrology of coarse particulate material from the lunar surface at Tranquillity Base
Shock metamorphic granular mafic holocrystalline lithic fragments, microbreccia, glass and anorthosite from Apollo 11 lunar surface material at Tranquillity Base
Butler, J. C.↗
Thermal and particulate radiation effects on potting polymers
Clear potting polymers, investigating temperature and ionizing particle irradiation effects on properties
Beatty, M. E., III↗
Nature of particulate matter in comets as determined from infrared observations
Bright comets particles albedo, absorptivity and size observation by combined IR and optical photometry
Odell, C. R.↗
Air quality aerometric data for the city of Cleveland from 1967 to 1970 for sulphur dioxide, suspended particulates, and nitrogen dioxide
The NASA Lewis Research Center is assisting the City of Cleveland, Ohio, in its effort to monitor its air pollution. This report describes the Cleveland program of the past 4 years and the supportive Lewis program currently being developed. The data accumulated by Cleveland over the past 4 years are presented together with some preliminary statistical analyses indicating in a semiquantitive manner the degree of air pollution existing within the boundaries of Cleveland.
Neustadter, H. E.↗
Noctilucent clouds in daytime - Circumpolar particulate layers near the summer mesopause.
Explore the source record for details and available documents.
Donahue, T. M.↗
Principle sources and dispersal patterns of suspended particulate matter in nearshore surface waters of the northeast Pacific Ocean and the Hawaiian Islands
There are no author-identified significant results in this report.
Carlson, P. R.↗
Principal sources and dispersal patterns of suspended particulate matter in nearshore surface waters of the northeast Pacific Ocean and the Hawaiian Islands
The author has identified the following significant results. Numerous geologic features can be discerned on ERTS-1 imagery of the northwestern Olympic Peninsula, Washington, and southern Vancouver Island, British Columbia. A thick homoclinal sequence of north-dipping Tertiary marine strata along the northwestern Olympic Peninsula is readily discernible because of the banded nature of its outcrop. The submarine basalt on which the sequence rests shows as a high, rugged ridge. Within the sedimentary sequence, alternating sandstone and siltstone members 100 m or more thick show in the southeast corner of the image. Broad folds in this banded sequence and faults that cut it can be detected. One large fault, the Pysht River fault, and a large syncline in sandstone and siltstone east of it show prominently on the image. Numerous lineations on the image of southern Vancouver Island correlate with faults shown on Muller's map. Particularly prominent are the Leech River and San Juan faults along the southernmost part of the island.
Carlson, P. R.↗