Use of drugs in the prevention of motion sickness
Scopolamine and d-amphetamine in prevention of motion sickness
Wood, C. D.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Prevention of motion sickness in the slow rotation room by incremental increases in strength of stimulus
Preventing motion sickness in slow rotation room by incremental increases in strength of stimulus
Graybiel, A.↗
The prevention of electrical breakdown in spacecraft
Design manual to prevent electrical breakdown of high voltage equipment in spacecraft
Burrowbridge, D. R.↗
Prevention of coupled structure-propulsion instability /POGO/ on the space shuttle
Many liquid-propellant rocket vehicles have experienced longitudinal vibration, nicknamed pogo after the jumping stick, due to an instability arising from interaction of the vehicle structure with the propulsion system. These vibrations can produce an intolerable environment for astronauts and equipment, can overload vehicle structure, and can lead to loss of propulsion performance. A NASA monograph concerned with the prevention of pogo is well on its way toward publication and should serve as a useful guide to design for the Space Shuttle. The paper will briefly describe the nature of the pogo phenomenon, present a summary of past instabilities, relate the possible deleterious effects of pogo, and discuss the contents of the design criteria monograph. Finally, research tasks are recommended for support of pogo development activities on the Space Shuttle.
S. Rubin↗
Prevention of pressure build-up in electrochemical cells Patent
Preventing pressure buildup in electrochemical cells by reacting palladium oxide with evolved hydrogen
Donnelly, P. C.↗
Interval at sea-level pressure required to prevent decompression sickness in humans who fly in commercial aircraft after diving.
Sea-level pressure interval to prevent decompression sickness in humans flying in commercial aircraft after diving
Beckman, E. L.↗
Prevention of bedrest induced orthostatism by 9-alpha-fluorohydrocortisone
Nine-alpha-fluorohydrocortisone preventing bedrest induced orthostatism, considering plasma volume decrease effects on cardiovascular performance
Bohnn, B. J.↗
Prevention of reflex vestibular disturbances and motion sickness by natural means and by drugs
Reflex vestibular disturbances and motion sickness prevention in artificial gravity of rotating space base, by incremental adaptation tests and drugs
Graybiel, A.↗
Prevention of damage to delicate connectors during mounting of heavy engines for testing
Air-bearing-pad principle, combined with monitoring system of the air-bearing force, prevents damage between electrical and mechanical connectors joining a large engine system to the test stand during remote mating. Pad provides a cushion between engine and test stand.
Hendrickson, R. J.↗
Ceramic backup ring prevents undesirable weld-metal buildup
Removable ceramic backup material butted against weld zone back prevents weld metal buildup at that site. Method is successful with manual tungsten-inert gas /TIG/ welding of 316 corrosion resistant steel /CRES/ pieces with 0.76 cm throat diameter and 1.57 cm pipe internal diameter.
Leonard, G. E.↗
Prevention of rust in the ID weld and heat affected zone of CRES 347 NERVA lines. NERVA program
Rust prevention in stainless steel fluid transmission lines of nuclear engine for rocket vehicles
Fletcher, C. W.↗
Method of coating carbonaceous base to prevent oxidation destruction and coated base Patent
Vapor deposited laminated nitride-silicon coating for corrosion prevention of carbonaceous surfaces
Jewell, R. A.↗
Method of coating carbonaceous base to prevent oxidation destruction and coated base Patent
Flame or plasma spraying for molybdenum coating of carbon or graphite surfaces to prevent oxidative corrosion
Jewell, R. A.↗
Device for preventing high voltage arcing in electron beam welding Patent
Development of device to prevent high voltage arcing in electron beam welding
Hanchey, K. K.↗
Prevention of coupled structure-propulsion instability /pogo/, NASA space vehicle design criteria, structures
Space vehicle design criteria for prevention of coupled structure-propulsion instability
Source record↗
Prevention of electrical breakdown in spacecraft
Spacecraft-borne high voltage system breakdown prevention by avoiding high electric field and critical gas pressure
Burrowbridge, D. R.↗
Efficient baffle prevents oil backstreaming in diffusion pumps
High vacuum diffusion pump baffle, positioned immediately above pump stack, prevents vaporized pumping oil from entering and contaminating test chamber. Pumping vapors are collected and condensed on the baffle and flow back to pump base reservoir.
Meneghetti, J. R.↗
Prevention of cathode damage from positive ion bombardment
Mixed alkaline earth oxide compounds deposited into hole at cathode surface center prevent ion back bombardment damage to cathode by reducing oxide layer and by creating metallic diffusion along sides of hole for enhanced electron emission.
Bennett, W. H.↗