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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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To monitor breaths per minute, two rate-to-analog converters are alternately used to read and count the respiratory rate from an impedance pneumograph sequentially displayed numerically on electroluminescent matrices.
Measurement of small linear displacements in digital readouts with extreme accuracy and sensitivity is achieved by an interferometer. The instrument combines a digital electro-optical fringe-counting system and a laser light source.
Pulse counting circuit with an extra chain of flip-flops, delay lines, and gates computes the sum of the squares of the pulse sequences. A pulse train and the sum of the squares of the pulses are simultaneously completed.
Photon count application in photoelectric tracking systems for astronomy
Electron multiplier and pulse counting recorder for detection of low energy particles and high energy photons
Biological significance of bacterial counts in aquatic environments
Design of real time computers which compute by counting techniques - circuit diagrams
Digital frequency counter system enables readout accurately at one-second intervals without interrupting or disturbing the counting process. The system incorporates a master counter and a slave counter with novel logic interconnections. The counter can be readily adapted to provide frequency readouts at 0.1 second intervals.
Effect of 49-, 64- and 100-term expansion of geomagnetic field on reduction of omnidirectional proton counting rate data
Diagram method for counting topologies on finite sets
Dynamical computation of photon correlations and counting statistics
Rapid technique for liquid scintillation counting of carbon-14-labelled barium carbonate
Counting with maximal length shift registers
Uranium content of chondrites measured by thermal neutron activation and delayed neutron counting
Photoelectron counting statistics produced by fully quantum mechanical laser
Nuclear data acquisition counting schemes on small computers permitting nuclear pulse spectra accumulation on one-word-per-channel basis
Reprogrammability of bottlenose dolphin sonic output in vocal airborne mode and vocal- acoustic interlock with other species, using sonic burst count matching
Meteor shower mass distribution from radar echo counts