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  • 1
    facet.materialart.
    Unknown
    Determination of Electromagnetic Properties of Mesh Material Using Advanced Radiometer Techniques (1985)
    In:  CASI
    Details
    Publication Date: 2014-09-18
    Description: The need for a large diameter deployable antenna to map soil moisture with a 10 kilometer or better resolution using a microwave radiometer is discussed. A 6 meter deployable antenna is also needed to map sea surface temperature on the Navy Remote Ocean Sensor System (NROSS). Both of these deployable antennas require a mesh membrane material as the reflecting surface. The determination of the electromagnetic properties of mesh materials is a difficult problem. The Antenna and Microwave Research Branch (AMRB) of Langley Research Center was asked to measure the material to be used on MROSS by NRL. A cooperative program was initiated to measure this mesh material using two advanced radiometer techniques.
    Keywords: COMMUNICATIONS AND RADAR
    Type: Large Space Antenna Systems Technol., 1984, Pt. 2; p 737-756
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Comparison of water immersion and saline infusion as a means of inducing volume expansion in man (1975)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The study compares the natriuresis induced by head-out water immersion to that of a standard saline infusion and assesses the relative effectiveness of these two techniques as volume determinants of renal sodium and water handling in humans in a seated posture. The data obtained show that the volume stimulus of immersion is identical to that of standard saline-induced extracellular fluid volume expansion (ECVE) in normal seated subjects. The ability of head-out water immersion to induce a natriuresis without a concomitant increase in total blood volume and with a decrease in body weight suggests that water immersion may be preferred as an investigative tool for assessing the effects of ECVE in man.
    Keywords: AEROSPACE MEDICINE
    Type: Journal of Applied Physiology; 39; July 197
    Format: text
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    NASA TECHNICAL REPORTS
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