Results 111 to 120 of about 4,945 (206)

Perspective and Potential of Smart Optical Materials [PDF]

open access: yes
The increasing requirements of hyperspectral imaging optics, electro/photo-chromic materials, negative refractive index metamaterial optics, and miniaturized optical components from microscale to quantum-scale optics have all contributed to new features ...
Choi, Sang H.   +8 more
core   +1 more source

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

CONDOR: Long endurance high altitude vehicle, volume 5 [PDF]

open access: yes
The results of a design study resulting in the proposed CONDOR aircraft are presented. The basic requirements are for the aircraft to maintain continuous altitude at or above 45,000 feet for at least a 3-day mission, be able to comfortably support a two ...
Andrews, L. Cullen   +6 more
core   +1 more source

Preliminary Investigation on Battery Sizing Investigation for Thrust Vector Control on Ares I and Ares V Launch Vehicles [PDF]

open access: yes
An investigation into the merits of battery powered Electro Hydrostatic Actuation (EHA) for Thrust Vector Control (TVC) of the Ares I and Ares V launch vehicles is described.
Miller, Thomas B.
core   +1 more source

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