The influence of the moon's and sun's gravitational field upon the movement of an artificial earth satellite
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Yegorova, A. V.↗
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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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The general solution of problems concerning the movement of artificial earth satellites in the normal gravitation field of the earth
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Aksenov, Ye. P.↗
Change in movement coordination in man after prolonged confinement in a small chamber
Changes in human motor coordination after prolonged confinement in small chamber
BIODYNAMICS↗
Remotely operated gripper provides vertical control rod movement
Remote actuation of a gripper shaft affects vertical engagement between a drive shaft and control rod. A secondary function of the gripper is to provide remote indication of positive completion of the gripping or ungripping operation.
Hutter, E.↗
Analysis of thermal stresses and metal movement during welding Final report
Thermal stresses during welding, and buckling after welding
Maubuch, K.↗
Eye tracking of observer-generated target movements.
Visual tracking accuracy of self produced target motion compared to independent motion
Held, R.↗
Classification of the movement of an artificial earth satellite around the center of mass
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Beletskii, V. V.↗
Oculometer for remote tracking of eye movement
Prototype oculometer which tracks lateral eye position and measures the direction of the eyes optical axis, pupil size, and blink occurrence performs measurements on the subject on a real-time basis from a remote location.
Mason, K. A.↗
A FORTRAN code for computing the principle mass movements of inertia of composite bodies
FORTRAN program for computing principal mass moments of inertia of spacecraft treated as composite bodies
Cake, J. E.↗
A numerical analysis of the use of perforated walls to control shock location and movement in an internal compression supersonic inlet
Numerical analysis of shock control by using perforated walls in internal compression supersonic inlets
Matthews, C. W.↗
Human self-rotation by means of limb movements
Weightless astronaut self rotation by limb maneuvers producing pitch and yaw motion
Kane, T. R.↗
Analysis of thermal stress and metal movement during welding Final report
Welding thermal and residual stress analysis and material property and weld parameter effects on thermal stresses and elastoplastic deformation of aluminum alloys, steel, niobium, and tantalum
Andrews, J. B.↗
A stochastic model for eye movements during fixation on a stationary target
Stochastic model for observing motion of retinal image of target during visual fixation
Vasudevan, R.↗
Electrodynamic heating and movement of the thermosphere
Thermosphere heating due to auroral electrojets, discussing thermospheric variations and eddy viscosity
Cole, K. D.↗
Movement of Surveyor 3 spacecraft
Surveyor 3 spacecraft attitude change on lunar surface, examining Apollo 12 mission photographs
Lu, T.-D.↗
Scanning technique for tracking small eye-movements
Scanning technique images spot of blue light on fundus, measures variations in reflectance of spot and compares reflectance pattern with a stored reference pattern. Method then converts the difference from stored pattern into infrared eye motion.
Kelly, D. H.↗
Analysis of thermal stress and metal movement during welding
Objectives of study were: investigation of temperature changes caused by welding arc with analysis of temperature distribution; development of system of mathematical statements describing thermal stresses and plastic strains during welding; and development of system of mathematical solutions and computer programs for one-dimensional analysis.
Andrews, J. B.↗
Pioneer F/G feed movement mechanism
The Pioneer F/G spacecraft achieves the desired earth-pointing direction through a system requiring the shifting of the main antenna feed 1 in. off axis. The feed is pivoted to this position by an electrically heated thermal actuator consisting of an electroless nickel bellows in a copper housing and filled with Freon 21. The actuator overtravels and maintains the feed in the offset position in a thermostatic limit cycle operation mode until commanded off. The mechanism is expected to operate in a -240 F environment near Jupiter and was successfully tested at such temperatures.
R. M. Acker↗