Results 81 to 90 of about 9,331 (178)

Analytical study of interior noise control by fuselage design techniques on high-speed, propeller-driven aircraft [PDF]

open access: yes
The acoustical treatment mass penalties required to achieve an interior noise level of 80 dBA for high speed, fuel efficient propfan-powered aircraft are determined.
Balena, F. J.   +2 more
core   +1 more source

Novel Electrospun Polycaprolactone/Calcium Alginate Scaffolds for Skin Tissue Engineering. [PDF]

open access: yesMaterials (Basel), 2022
Echeverria Molina MI   +4 more
europepmc   +1 more source

NASA Tech Briefs, October 1990 [PDF]

open access: yes
Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical' Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life ...

core   +1 more source

LDEF: A bibliography with abstracts [PDF]

open access: yes
The Long Duration Exposure Facility (LDEF) was a free-flying cylindrical structure that housed self-contained experiments in trays mounted on the exterior of the structure.
Gouger, H. Garland
core   +1 more source

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