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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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Queuing register /a multistage bit-shifting device/ uses a series of pure fluid elements to perform the required logic operations. The register has several stages of three-state pure fluid elements combined with two-input NOR gates.
Cathodes of display tubes wired in parallel achieve input switching simplification of a Nixie tube display system. Use of time- shared logic energizes the appropriate anode and inhibits all unnecessary cathodes.
Automatic cable tester checks multiple shielded conductors assembly cable connections. The tester uses logic circuitry to sequentially test all conductors and their shields to reveal any connection error in a GO-NO GO test.
Research and development in multistate fluid logic elements is reviewed in a historical and critical report. The report concludes that in the development of fluid amplifiers, there are elements with very high gain and poor switching speed, and other elements with very high switching speed and poor gain.
Midcourse guidance analysis and optimization with discrete measurements for mission logic development
Logical contradiction of existence of tachyons, particles that travel faster than speed of light
Frequency coded threshold logic unit for pattern recognition systems based on central nervous system
Computerized simulation techniques for logic circuits and for automatic drawing of schematics
High speed micropower microelectronic transistor logic circuits in integrated form
Pulse noise immunity of saturated logic gates assessed to determine operational reliability
Low power similar transistor logic microcircuits to minimize power drain through gating options
Fluidic breadboard version of rocket engine sequence control, describing pneumatic logic package and general limitations
Logic hazards detection in threshold gate networks, discussing hazard free network synthesis based on Boolean functions and tree method
Magnetic logic circuit design features two ferrite materials, with different formulation and magnetic characteristics, which are bonded into a continuous structure by preparing the materials as a slurry and using the doctor blade method to form flexible ferrite sheets. After firing, the sintering process was continuous across the bond.
Planning logic for exploration and utilization of moon
Magnetic core logic circuit system for bidirectional stepping motor drive voltage power supply control in proper phase and time sequence
Majority logic decoding of Euclidean or projective geometry codes in two steps