Evaporative Cooling Garment System /ECGS/, part 1 Final report

Evaporative Cooling Garment System /ECGS/ for body cooling during extravehicular activity in spac

Emergency Evaporative Coolant Garment System/Liquid-Cooled Garment /EECGS/LCG/, phase 2 Final report

Emergency evaporative coolant liquid cooled garment syste

Evaporative Cooling Garment System /ECGS/, part 2 Final report

Evaporative Cooling Garment System /ECGS/ for body cooling during extravehicular activity in space - typical design verification test ru

NACA Technical Reports

"The theory of the hydraulic analogy -- that is, the analogy between water flow with a free surface and two-dimensional compressible gas flow -- and the limitations and conditions of the analogy are discussed. A test was run using the hydraulic analogy as applied to the flow about circular cylinders of various diameters at subsonic velocities extending into the supercritical range. The apparatus and techniques used in this application are described and criticized" (p. 311)

NACA Technical Notes

From Introduction: "The development of the measuring apparatus and techniques is presented herein. The application of the analogy to flows through nozzles and about circular cylinders at subsonic velocities extending into supercritical range is also presented.

The temporal and spatial variations of low frequency geomagnetic pulsations at polar cusp and cap latitudes

Geomagnetic field measurements at two Antarctic stations are compared during two weeks in the local summer (January 1-15, 1992). Low frequency (0.6-6 mHz) pulsations are observed at each station near local magnetic noon. The same wave packets appear in some cases also at the other station, although with a significant attenuation, more clearly in the morning sector; the waves show a near noon reversal of the polarization sense from counter-clockwise in the morning to clockwise in the afternoon indicating a westward and an eastward propagation, respectively

A new southern high-latitude index

We have developed and examined a new regional geomagnetic index AES-80, defined similarly to the classical auroral electrojet AE index, using data from five Antarctic stations located at corrected geomagnetic latitudes about 80 °S. Because only sparse ground-based information can be derived from auroral latitudes in the Southern Hemisphere, and because no index comparable to AE can be constructed from locations in the south, the possibility of using AES-80 as a measure of high latitudes and polar cap activity is investigated. As a global average activity level indicator, it is found that in general AES-80 gives results rather similar to the classical AE index. However AES-80 provides a more robust measure of the occurrence of high-latitude geomagnetic activity.Key words. Magnetospheric physics (auroral phenomena; polar cap phenomena)