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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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An expression for the strength of the synchronous rotation of the moon in terms of upper and lower limits on the rotational period is derived. The rotational periods for locked-in motion are expected to lie between 1.025T and 0.975T, where T is the period of revolution.
Shut-off valve at the destination of a transferred fluid, improves the accuracy of measurements determining the quantity of liquid transferred from a storage source to a remote location. By synchronizing this valve with the measuring device /totalizer/, the inaccuracies resulting from unfilled transfer lines can be reduced.
Photoelectric sensor enables synchronization of the rotating mirror in a high-speed framing camera with the passage of a very-high-velocity droplet to obtain direct photographic data on droplet breakup. It detects droplet movement across a high intensity light beam and generates a signal triggering the camera.
Time synchronization of remote station clocks
Zenith and azimuthal angles of measurement dependence on reflection properties of earth atmosphere determined from synchronous satellite data
Data handling system for 8 bit biorthogonal telemeter coded pulse code modulation with efficient synchronization
Equations derived for analyzing ground track of sun synchronous satellite and applied to Earth Resources Satellite
Time division access system for satellite communications, and figure of merit for effects of bit and frequency synchronization
Radiation damage shielding of solar cells on synchronous spacecraft
Magnetic storm anisotropic particle fluxes from low energy ion detector aboard synchronous orbit Applications Technology Satellite /ATS-1/
Self bit synchronizers for detection of anticorrelated binary systems of digital communication systems
Self-synchronizing, biorthogonal coded pulse code modulation telemetry system for communicating with unmanned spacecraft
Performance degradation of solar cells on synchronous orbiting satellite
Large local time variations in particle fluxes during geomagnetically disturbed times observed by synchronous satellites
Self synchronization and bit timing in detection of digital signals
Noisy synchronizing signals effect on noncoherent frequency shift keyed split phase coded system performance, noting signal to noise ratio degradation
Synchronization of pulse code modulation channels by word stuffing technique
Satellite orbit adjustment, stationkeeping and attitude control of typical earth- and sun- synchronous satellites by electric propulsion systems