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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 703 records · Page 39

Post-stressed concrete foundation may reduce machinery vibration

Post-stressing concrete mat foundation reduces excessive vibrations in machinery. The mat is stressed in compression after the machinery is mounted, thus closing any cracks in it, altering the distribution of the soil subgrade reaction on the mat, and changing the mat-subgrade natural frequency.

Fistedis, S. H.↗

Post-Apollo lunar mission planning.

Mission planning for post-Apollo period including selection of lunar landing sites and definition of preferred scientific activity

ASTRONAUT PERFORMANCE↗

Post-landing tracking data analysis

Surveyor 7 post-landing tracking data analysis, and determining selenocentric location of probe and geocentric locations of tracking stations

Winn, F. B.↗