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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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Masking material and a thickening agent preserve limited unanodized areas when aluminum surfaces are anodized with chromic acid. For protection of large areas it combines well with a certain self-adhesive plastic tape.
Reduction of retardation by diode-resistor networks of the current-decay time of a punch magnet by connection of a Zener diode in series with the damping network increases the reliability of data on paper tape.
Cleavage technique is recommended over the normal polishing technique in preparing pyrolytic carbon for metallographic examination of basal-plane surfaces. After careful removal of torn basal-plane fragments and other cleavage debris with cellulose tape, the true structure is clearly revealed.
Soft betas, the internal conversion electrons, and unconverted gamma rays from lead-210 are efficiently detected in a liquid scintillation counting system with efficiency of 97 percent. The counter is interfaced with a multichannel pulse height analyzer. The spectra obtained is stored on paper tape and plotted on an x-y plotter.
Charge-discharge controller contains punched-tape programmer capable of programming 305 discrete steps in the battery load. The indicating instrumentation includes meters for ampere-hours, watt-hours, voltage, current, and internal temperature and pressure. It also generates analog signals for recording the displayed data.
Solar activity model provides information on plages, sunspots, filaments, and flares. The model enables scheduling, which will indicate the time periods when solar experiments can be conducted. Data were collected at various locations throughout the world and recorded on tape for the computer.
Investigation of magnetic tape recorder-reproducer to accept data pulses at varying rates, record at constant packing density, and retrieve at rates synchronized to external clock
Coating procedure for tape separator of heat sterilizable battery
Flame absorption spectroscopic analysis of support tapes
Specifications for automatic storage and playback /ASAP/ and Saturn simulation computer program, and predicted data tape program
Five computer programs for analyzing magnetic tape recordings of digital data from microphotometer
Variable time lapse videoscintiscope in medical applications, discussing implementation of TV camera, signal tape recording and audio activation
Technical problem solving model based on tape recorded protocols of engineers engaged in R and D project
Technique uses a helical-scan video recorder with auxiliary signal-conditioning equipment to provide an inexpensive, high-capacity magnetic tape recording of a 112 channel, phase-locked, multiplexed, baseband signal.
Telemetry package uses three separate FM/AM transmitters, one for each axis of measurement. Three AM receivers and a tape recorder are used for receiving, demodulating, and recording the acceleration signal.
System converts detector pulse rates to photographs of binary scale indicator lights on continuously moving film. The system then scans the film and transfers the data to computer-compatible magnetic tape.
Adhesives, coatings, coated fabrics, elastomers, encapsulants, films, hardware and structural materials, and tapes are tested in a series of physical, mechanical, and electrical tests. Material properties are measured before and after exposure to the three environments.
Redesigned second-generation, tape-oriented computer system updates a data record, increases the capability to perform update runs, and produces a sequential report for every update run.