Results 261 to 270 of about 241,092 (307)

The effect of temperature on shuttle glow

Nature, 1986
The glow on ram surfaces of the Space Shuttle has been reported from a series of photographic observations made during several orbiter missions. These measurements have shown that the spectrum of the glow is a continuum, has a spectral peak at 680 nm, and the brightness decreases with altitude.
G. R. Swenson, S. B. Mende, E. J. Llewellyn   +2 more
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Effects of Delta Wing Separation on Shuttle Dynamics

Journal of Spacecraft and Rockets, 1973
The unsteady aerodynamics of a candidate delta-wing shuttle orbiter have been investigated. Three potentially dangerous flow separation phenomena involving the delta wing have been identified, each of which could seriously compromise the flight dynamics.
J. PETER REDING, LARS E. ERICSSON
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Dynamic Effects from the Space Shuttle Liftoff

Engineering, Construction, and Operations in Space V, 1996
This paper presents a study of the dynamic effects of the Space Shuttle launches on the ground support structures at Launch Pad 39A at the NASA-Kennedy Space Center. Pressure and structural acceleration data recently recorded at the Kennedy Space Center in support of a 1990-1992 study were reviewed and incorporated with additional recordings of similar
Barsoum, Fady F., Carroll, William F.
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Shuttle Environment Effects On Coated Mirrors

SPIE Proceedings, 1987
oated mirrors used in optical instrument payloads designed for use at ultraviolet wave-lengths face the risk that molecular contamination, in small amounts, can degrade reflectivity. This can be particularly damaging if a combination of solar ultraviolet radiation and organic gases are present, resulting in photopolymerization of hydrocarbon tars onto ...
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Effect of gap flow on shuttle heat transfer

Cryogenics, 2000
A comprehensive analysis is performed to investigate the effect of the oscillating flow of gap fluid on the shuttle heat transfer in reciprocating expanders. For a sinusoidal motion of displacer over cylinder having an axial temperature gradient, a new exact expression for shuttle heat transfer is derived from the analytical solution of the velocity ...
Ho-Myung Chang, Dae-Jong Park, Sangkwon Jeong   +2 more
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Catalytic surface effects experiment on the Space Shuttle

16th Thermophysics Conference, 1981
A Space Shuttle experiment planned to measure the surface catalytic efficiency of the baseline high-temperature reusable surface insulation (HRSI) during earth entry is described. A spray-on overcoat, with high catalytic efficiency, will be used as a comparative basis for determining the HRSI surface catalytic efficiency through surface temperature ...
D. STEWART, J. RAKICH, M. LANFRANCO
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Effective placement of chips on a shuttle mask

SPIE Proceedings, 2003
An effective algorithm was developed to prepare a mask layout from several chip databases. The underlying idea is solving so called “strip packing” problems, which actually have been very common in many industries. A major difference between applications is the definition of cost function used in a particular packing problem.
Shih-Ying Chen, Eric C. Lynn
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Thyroid Status of Space Shuttle Crewmembers: Effects of Iodine Removal

Aviation, Space, and Environmental Medicine, 2011
Iodine is often used for water purification and has been used throughout the U.S. space program. Because of concern about potential effects on crewmembers' thyroid function, in 1997 a system was implemented on board the Space Shuttles to remove iodine from water before it was consumed.
Scott M, Smith, Sara R, Zwart, Kathleen A, McMonigal, Carolyn L, Huntoon   +3 more
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Effects of potential environmental interferents on kinesin-powered molecular shuttles

Nanoscale, 2012
Biomolecular motor-powered active transport represents an alternate means for analyte processing in nanoscale biosensors and bioanalytical devices. For example, a prototype "smart dust" biosensor has recently been reported in which the motor protein kinesin processes antibody-functionalized microtubules (MTs) to capture and separate optically tagged ...
Marlene, Bachand, George D, Bachand
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Effects of stimulus modality on the shuttle activity in rats

Behavioural Brain Research, 2004
Shuttle activity during repeated presentation of irrelevant auditory (white band noise) and visual (darkness) stimuli was studied in 32 male Möll-Wistar rats. The subjects were randomly divided into two groups. In Group ND the auditory stimulus was used in the first habituation session, and the visual stimulus in the second habituation session.
Tomasz, Werka, Grazyna, Walasek, Krystyna, Swirszcz   +2 more
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