Results 101 to 110 of about 17,100 (191)

Subselenean tunneler melting head design: A preliminary study [PDF]

open access: yes
The placement of base facilities in subsurface tunnels created as a result of subsurface mining is described as an alternative to the establishing of a base on the lunar surface. Placement of the base facilities and operations in subselenean tunnels will
Engblom, Bill   +4 more
core   +1 more source

Challenges in the development of the orbiter atmosphere revitalization subsystem [PDF]

open access: yes
The space shuttle orbiter atmospheric revitalization subsystem provides thermal and contaminant control as well as total- and oxygen partial-pressure control of the environment within the orbiter crew cabin.
Decrisantis, A.   +6 more
core   +1 more source

Advancement and emerging challenges in electric-field assisted manufacturing: a review. [PDF]

open access: yesInt J Adv Manuf Technol
Kamal SM   +4 more
europepmc   +1 more source

Properties data for opening the Galileo's partially unfurled main antenna [PDF]

open access: yes
An investigation was conducted into the friction and wear behavior of both unlubricated and dry-film-lubricated (Tiolube 460) titanium alloy (Ti-6Al-4V) in contact with an uncoated high-nickel-content superalloy (Inconel 718) both in vacuum and in air ...
Miyoshi, Kazuhisa, Pepper, Stephen V.
core   +1 more source

Small business innovation research. Abstracts of completed 1987 phase 1 projects [PDF]

open access: yes
Non-proprietary summaries of Phase 1 Small Business Innovation Research (SBIR) projects supported by NASA in the 1987 program year are given. Work in the areas of aeronautical propulsion, aerodynamics, acoustics, aircraft systems, materials and ...

core   +1 more source

NASA Tech Briefs Index, 1977, volume 2, numbers 1-4 [PDF]

open access: yes
Announcements of new technology derived from the research and development activities of NASA are presented. Abstracts, and indexes for subject, personal author, originating center, and Tech Brief number are presented for ...

core   +1 more source

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