Bimetal sensor for averaging temperature measurement of nonuniform temperature profiles
Tungsten-stainless steel sensor for averaging temperature measurement of nonuniform temperature profiles
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Tungsten-stainless steel sensor for averaging temperature measurement of nonuniform temperature profiles
Ion temperature determination by variations of satellite induced ion trap currents - Electron 2 satellite measurements of ion temperatures in ionosphere
Aerial measurement of radiation temperatures over Mt. Fuji and Tokyo areas applied to determine ground and water surface temperatures
Temperature coefficients for resistivity of n- and p-type germanium and silicon near room temperature
Seasonal and latitudinal variations of average surface temperature and vertical profile of atmospheric temperature on Mars based on thermal equilibrium model
Aerial radiation temperature measurement, damping factor of atmosphere and determination of ground and water surface temperatures by radiometry
Recombination rate of electrons in high pressure helium-like plasma with gas temperature fixed at 300 K and electron temperature varied between 300-2000 K
Time dependent variations in sky emission temperature, anomalous sky temperature variation with zenith distance on calm nights, lunar linear polarization - millimeter wavelengths
Chromosome of temperature-sensitive mutant of bacillus subtilis 168, observing multiforked replication at normal temperature and transfer of DNA
Thermal conductivity of multilayer and mixed powder high temperature insulation systems over wide temperature range and vacuum conditions
Bonding of flat metal surfaces utilizes low temperature melting intermediate material, pulse heating, and pressure application to produce strong, electrically conductive bond resistant to melting at temperatures well above melting point of intermediate material. Little or no intermediate material remains at the interface.
Thermodynamic temperature drop at liquid-vapor interface in high temperature lithium heat pipes
Development of procedure for scaling of experimental turbine vane airfoil temperatures from low to high gas temperatures
Description of the design and operation of a radiometer which derives atmospheric temperature profiles on the basis of spectral measurements in eight optical filter channels. The radiometer achieves its eight-channel capability by sequentially viewing the eight optical filters mounted in a rotating filter wheel, with a single IR detector and electronic amplification channel processing the signal for all the filters. The advantages and disadvantages of this sequential approach as compared to eight 'parallel' radiometric channels are discussed. The proposed radiometer provides a relative calibration accuracy between seven out of the eight channels of better than 0.1% rms of the full dynamic range. The absolute accuracy achievable between in-flight calibrations of six minutes, or between two-hour calibrations using optical temperature correction factors, is better than an rms value of 0.15% of full scale. The radiometric correlation between the in-flight calibration source of the instrument and a reference standard blackbody is better than an rms value of 0.5% of full scale.
Various design characteristics and performance achievements of the vertical temperature profile radiometer (VTPR) are discussed. It is shown that the VTPR provides a relative calibration accuracy of better than 0.1% rms of the full dynamic range and has been operating successfully in space on the ITOS spacecraft for more than eleven months. The absolute accuracy achievable between in-flight calibrations of 6 minutes, or between 2-hour calibrations using optical temperature correction factors, is better than an rms value of 0.15% of full scale. The radiometric correlation between the VTPR in-flight calibration source and a reference standard blackbody is better than an rms value of 0.5% of full scale.
Metallic conduction mechanicsms are probably not important in lunar materials because of the small amounts of free metal and metallic oxides present. This is confirmed by the extremely low conductivities measured to date and the fact that the conductivity increases with temperature. The major conduction mechanicsm appears to be ionic. This conduction mechanism is very strongly controlled by temperature, by deviations from stoichiometry, by electric field strengths, and by oxygen fugacity.
The problem of microwave thermal emission from a half-space random medium is solved. We consider a laminar structure which has a nonuniform temperature distribution in the vertical direction. A radiative transfer approach is applied. For constant absorption and scattering coefficients, the brightness temperature is determined by a simple closed-form formula. Physical interpretations and numerical results are illustrated and discussed for the various cases.
Equations assuming a Jahn-Teller type effect for the d band electrons in V3Si compounds are given, and the results of free-energy change calculations by using some approximations based on these equations are depicted. The tetragonal structure is converted to cubic as the temperature rises past T sub m which is calculated as 13 K. by the Batterman-Barrett method and is measured to be 20-5 K. Other parameters such as change of C sub p with temperature are predicted better.