Progress in pilot warning indicators
Pilot warning indicators and lowering risk of mid-air collisions
Anderton, H. L.↗
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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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X-ray lunar altitude and altitude rate indicator.
Pulsed X ray lunar altitude and altitude rate indicator similar to pulse radar altimeter
Johnson, D. L.↗
A cardiotachometer with linear indication of beat-to-beat frequency.
Circuit design and performance of cardiotachometer with linear indication of beat-to-beat heart rate, noting input clipping and filter circuits
Deboo, G. J.↗
Stability indicative function and its application to the linear systems with multiple delays.
Stability indicative function applied to linear systems with multiple delays
Kashiwagi, Y.↗
Direct indication of particle size in fluidized beds
Differential pressure measurements indicate particle size and particle size distribution in fluidized beds. The technique is based on the relationship between bed particle size and the intensity and frequency of fluctuations. By measuring the fluctuations, an estimate of average particle size of the fluid-bed material can be made.
Knudsen, I. E.↗
Circuit counts pulses and indicates time of occurrence of slow pulses
Counter includes one section which counts the first several pulses, and a second section which counts pulses from a clock between the beginning of a sampling interval and the receipt of the first pulse by the circuit. The number of clock pulses indicates receipt time of the first pulse.
Baumer, W. E.↗
Simple test indicates degree of cure of polyimide coatings
Qualitative test involves immersing a coated cable in methyl-2-pyrrolidone and removing it in one to three minutes. Evidence of any cracking, peeling, or other defects that shows under 20-power magnification indicates that the coating has not been completely cured.
Uribe, J. R.↗
The determination of a stability indicative function for linear systems with multiple delays
Determination of stability indicative function for linear systems with multiple time delays
Kashiwagi, Y.↗
Electronic position indicator for latching solenoid valves
Electronic position indicator for latching solenoid valves in SNAP 8 ground test facility
Frye, R. J.↗
Light radiation direction indicator with a baffle of two parallel grids
Light radiation direction indicator with baffle of two parallel grids
Mildice, J. W.↗
Compilation of data from related technologies in the development of an optical pilot warning indicator system
Development of optical pilot warning indicator system for aircraft detection
Gunn, K.↗
Peripheral volume measurements as indices of peripheral circulatory factors in the cardiovascular orthostatic response
Peripheral volume measurements as indices of circulatory factors in cardiovascular orthostatic response
Bartok, S. J.↗
Indicators of the effect of jet noise on the value of real estate
Airport neighbors typically contend that their property should enjoy airport-accelerated appreciation in value but not suffer counterbalancing effects from jet noise. The paper discusses the effect of jet noise on property value as indicated by (1) market value changes, (2) insulation costs, (3) easement costs, and (4) litigation.
Jet aircraft noise↗
Progress in pilot warning indicators.
Pilot warning indicators to equip all aircraft at low cost, discussing Doppler system
Anderton, H. L.↗
Proposed indices characterizing stratospheric circulation and temperature fields.
Circulation and temperature fields indices used for studying tropospheric-stratospheric interactions during stratospheric warming at constant pressure levels
Gelman, M. E.↗
Electronic position indicator for latching solenoid valves
Electronic circuit connected to solenoid valve coils visually indicates the position of the valve stem. Transient suppression is provided to prevent damaging voltage spikes.
Fischer, R.↗
Lamp modulator provides signal magnitude indication
Lamp modulator provides visible indication of presence and magnitude of an audio signal carrying voice or data. It can be made to reflect signal variations of up to 32 decibels. Lamp life is increased by use of a bypass resistor to prevent filament failure.
Zeman, J. R.↗
Evaluation of electrical impedance cardiographic measurements of heart function in comparison to indicator dilution and pressure gradient methods
Correlation between cardiographic measurement values obtained by impedance, indicator flow, or pressure gradient observations on humans
Babbit, H.↗