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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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At least 1,387 records · Page 77

The ring laser inertial sensor.

Ring laser inertial sensor for aerospace systems obtaining high accuracy angular resolution and mechanical simplicity

ANGULAR VELOCITY↗

Concerning the flow about ring-shaped cowlings Part VI : further measurements on inlet devices

The present report presents as a supplement to the fourth report (available as ATI 5045, Air Materiel Command) in the series of investigations concerning the flow about ring-shaped cowlings further wind-tunnel measurements on inlet devices which are to show the influence of the radius of the nose of the cowling on the flow conditions. Moreover, a simple rule for the design of such arrangements, containing a hub in the interior, is suggested.

AIR FLOW - ENGINE COWLINGS↗

Interstellar Scattering and the Einstein Ring PKS 1830-211

High frequency (22 GHz) data have been used two resolve two compact components of the strong gravitational lens PKS 1830-211. The two bright components are at opposite sides of a one arcsecond diameter Einstein ring.

gravitational lens Einstein ring interstellar scat↗