Results 101 to 110 of about 547,647 (206)

Parameter and configuration study of the DSS-13 antenna drives [PDF]

open access: yes
The effects of different elevation and azimuth drive configurations on DSS-13 antenna performance are presented as well as a study of gearbox stiffness and motor inertia. Small motor inertia and rigid gearboxes would improve the pointing accuracy up to a
Gawronski, W., Mellstrom, J. A.
core   +1 more source

Dynamic modeling of the servovalves incorporated in the servo hydraulic system of the 70-meter DSN antennas [PDF]

open access: yes
As the pointing accuracy and service life requirements of the DSN 70 meter antenna increase, it is necessary to gain a more complete understanding of the servo hydraulic system in order to improve system designs to meet the new requirements.
Bartos, R. D.
core   +1 more source

An orientable, stabilized balloon-borne gondola for around-the-world flights [PDF]

open access: yes
A system capable of pointing a balloon-borne telescope at selected celestial objects to an accuracy of approximately 10 arc minutes for an extended period (weeks to months) without reliance on telemetry is described.
Lewin, W. H. G., Ricker, G. R.
core   +1 more source

Thermal-distortion analysis of a spacecraft box truss in geostationary orbit [PDF]

open access: yes
The Mission to Planet Earth enlists the use of a geostationary platform to support Earth science monitoring instruments. The strongback for a proposed geostationary platform is a deployable box truss that supports two large diameter passive microwave ...
Cosgrove, Patrick A.   +2 more
core   +1 more source

Deep learning and firearm wound classification: a pilot study. [PDF]

open access: yesFront Med (Lausanne)
Delogu G   +5 more
europepmc   +1 more source

Practicability of High-Accuracy Point Positioning

open access: yesThe Journal of Japan Institute of Navigation, 2006
Nobuaki Kubo, Un Kyo, Akio Yasuda
openaire   +2 more sources

Mobile eye tracking in the real world: Best practices. [PDF]

open access: yesJ Vis
Nolte D   +5 more
europepmc   +1 more source

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