Improved table for cutting and welding
Welding table covered with parallel inverted steel angles improves metal torch cutting of various types and thicknesses.
Oliver, D. H.↗
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Results for “Inverter”
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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Longitudinal oscillation of a liquid-filled, elastic, cylindrical-conical tank.
Natural frequencies and mode shapes for longitudinal oscillations of liquid filled elastic circular cylindrical tank with flexible inverted conical bulkhead
Tai, C. L.↗
Quartz pedestal dilatometer.
Automatic recording inverted dilatometer employing fused quartz vertical pedestal and yoke type pushrod
Gaal, P. S.↗
Approaches to non-linear problems - The example of plasticity.
Elastoplastic flow equations formulation, inverting flow rule to relate stress rates to strain rates and instantaneous stresses, noting Navier equations
Swedlow, J. L.↗
Highly stable biased amplifier and stretcher system
Amplifier and stretcher system, which minimizes thermal effects and compensates for repetition-rate effects, maintains resolution levels in spectrum analysis. An additional inverting amplifier is used in the system to provide a noiseless charge restorer.
Roddick, R. G.↗
The determination of atmospheric temperature profiles from planetary limb radiance profiles
Inverted planetary limb radiance for determining earth atmosphere temperature from orbiting satellite
Burns, J. W.↗
Design and performance analysis of a medium- power dc-dc converter
Design and performance of dc-dc converter compatible with pulse width modulation inverter
Birchenough, A. G.↗
Recent developments in image devices
Developing electrostatic image inverters, image intensifiers, and camera tubes
Schlesinger, K.↗
Laser technology for communications Semiannual technical progress report, 1 Feb. - 31 Jul. 1970
Laser communication and Stark modulation of CO2 laser, competition between transitions in CO2 laser, and very high resolution inverted Lamb dip spectra of SF6
Pao, Y.-H.↗
Voltage-controlled oscillator
Oscillator generates symmetrical triangular waveform when inverting and noninverting inputs are equal. Oscillator portion of circuit has integrated circuit, high-performance operational amplifier wired as differential integrator, and two silicon controlled rectifiers.
Durand, J. L.↗
Global distribution of ozone from Nimbus III
Global ozone distribution from inverted radiance measurements by IR interferometer spectrometer /IRIS/ on Nimbus 3 satellite
Conrath, B. J.↗
Doppler jitter stabilization of a CO2 laser
Doppler jitter stabilization of carbon dioxide laser without internal modulation to inverted Lamb dip in extracavity absorption cell
Goldberg, M. W.↗
Description and performance of the electrical subsystem for a 2 to 15 kWe Brayton power system
Brayton power system electrical subsystem and component performance tests, discussing engine control package, DC supply, inverters and instrumentation
Bainbridge, R. C.↗
Global distribution of ozone from Nimbus 3
Global atmospheric ozone distribution from inverted radiance measurements by IR interferometer spectrometer onboard Nimbus 3 satellite
Conrath, B. J.↗
A series of related active regions during January 14-June 1, 1969
Related solar active regions during 14 January-1 June 1969, associating largest flares with inverted polarity
Prata, S. W.↗
Projections of scan patterns on human retina
Fundus camera tracks eye movements by using camera optics with the aid of an inverted system. Camera provides a flying-spot circular scanning light source in the normal film plane and a broadband photodetector in position normally occupied by light source.
Kelly, D. H.↗
A parametric study of motor starting for a 2- to 10-kilowatt Brayton power system
A study of the motor starting of a Brayton cycle power system was conducted to provide estimates of system sensitivity to several controllable parameters. These sensitivity estimates were used as a basis for selection of an optimum motor-start scheme to be implemented on the 2- to 10-kilowatt Brayton power system designed and presently under test. The studies were conducted with an analog simulation of the Brayton power system and covered a range of frequencies from 400 Hz (33 percent design) to 1200 Hz (design), voltage-to-frequency ratios of 0.050 (50 percent design) to 0.100 (design), turbine-inlet temperatures of 800 K (1440 R, 70 percent design) to 1140 K (2060 deg R, design), and prestart pressure levels of 14.5 psia to 29.0 psia. These studies have shown the effect of selected system variables on motor starting. The final selection of motor-start variables can therefore be made on the basis of motor-start inverter complexity, battery size and weight, desired steady-state pressure level after startup, and other operational limitations. In general, the study showed the time required for motor starting to be inversely proportional to motor frequency, voltage, turbine-inlet temperature, and pressure level. An increase in any of these parameters decreases startup time.
Cantoni, D. A.↗