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Results for “marsh”

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 307 records · Page 17

Turbofan-engine noise suppression.

Program for perceived noise levels reduction on ground of turbofan-powered commercial transport by acoustically absorptive lining of ducts

NOISE REDUCTION↗

Turbofan-engine noise suppression.

Program for perceived noise levels reduction on ground of turbofan powered commercial transport by acoustically absorptive lining of ducts

Marsh, A. H.↗

Duct-lining materials and concepts

Acoustic characteristics evaluation of duct lining materials and design of acoustically absorptive aircraft inlets and fan ducts

Feder, E.↗