Proposed new engineering standard for the solar constant and zero air mass solar spectral irradiance
Engineering standard for solar constant and zero air mass solar spectral irradiance from high altitude measurements
Thekaekara, M. P.↗
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Results for “Standardization”
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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Microwave cryogenic thermal-noise standards
Field operational waveguide noise standard with nominal noise temperature of 78.09 plus/minus 0.12 deg K is calibrated more precisely than before. Calibration technique applies to various disciplines such as microwave radiometry, antenna temperature and loss measurement, and low-noise amplifier performance evaluation.
Stelzried, C. T.↗
Standard deviation of vertical wind shear in the lower atmosphere
Determination of standard deviation of vertical wind shear in lower atmosphere
Fichtl, G. H.↗
Development, fabrication, testing, and delivery of advanced filamentary composite nondestructive test standards Final report
Development and fabrication of filament composite nondestructive test standards
Lewis, W. H.↗
Acceptance sampling for the normal distribution - Standard deviation unknown but assumed constant
Standard deviation estimates causing operating characteristic curves to be random variables in quality control acceptance sampling plans and methods for computing confidence limits
Sidik, S. M.↗
A study of metal oxygen and metal nitrogen systems for use as reduced pressure standards
Metal-oxygen and metal-nitrogen systems for use as reduced pressure standards using Sieverts apparatus
Lundin, C. E.↗
GSFC field operable atomic hydrogen standard research and development
Prototype atomic hydrogen maser standard for field operation
Peters, H. E.↗
An abundance analysis of the photometric standard 29 Psc
Atmospheric and abundance analyses of photoelectric standard star 29 Psc
Klinglesmith, D. A., III↗
Piston manometer as an absolute standard for vacuum-gauge calibration
Piston manometer used as absolute standard for calibrating and intercomparing vacuum gages in 10 to 500 microtorr range
Warshawsky, I.↗
Film boiling from spheres - A comparison of theory and data at standard and reduced gravity
Comparison of experimental and analytic film boiling heat transfer data for spheres emersed in liquid nitrogen at standard and reduced gravity
Hendricks, R. C.↗
A standard language for test and ground operations
Development of standard language for test and ground operations involving space shuttle ground support equipment
Paul, H. C.↗
Proposed standard values of the solar constant and the solar spectrum
Solar constant and zero air mass spectrum, discussing new standard values
Thekaekara, M. P.↗
Hydrogen-maser time and frequency standard at Agassiz Observatory
Hydrogen maser time and frequency standards at Agassiz observatory for long baseline interferometry via radio telescope, discussing Loran C
Levine, M. W.↗
Analysis of interferometrically measured wavelengths and their application as secondary standards of length
Thorium wavelength measurements by interferometry, noting weighted averages as secondary standards of length
Valero, F. P. J.↗
Standard values for the solar constant and its spectral components
Solar constant and spectral energy distribution standard values by high altitude aircraft, balloon and spacecraft measurements
Drummond, A. J.↗
An in situ, metal-gas, secondary-standard assembly for ultrahigh-vacuum instrumentation
In situ metal-gas secondary standard assembly for ultrahigh vacuum gage calibration, using repeatable pressure generation from binary erbium- hydrogen system
Outlaw, R. A.↗
Nondestructive-test standards for evaluation of fiber-reinforced composites
Advanced composite standards, representing potential variations occurring when composites are processed into finished structures, were designed, fabricated and tested. Testing methods utilized were ultrasonic C-scan, radiography, and infrared.
Pless, W. M.↗
Standard reference materials: Thermal conductivity of electrolytic iron, SRM 734, from 4 to 300 K
Thermal conductivity data were obtained by the axial one-dimensional heat flow method for a cylindrical rod 3.6 mm in diameter and 23 cm long with an electric heater at one end and a temperature controlled sink at the other. Variability of this iron was studied by means of electrical residual resistivity ratio measurements on 63 specimens. This study showed that with a two-hour anneal at 1000 C one can obtain a thermal conductivity Standard Reference Material that has variability of less than 1% in thermal conductivity.
Hust, J. G.↗