A brushless dc torquer-driven reaction wheel for spacecraft attitude control
Photoelectronic commutation by dc torquer-driven reaction wheel for spacecraft attitude control
Fulcher, R.↗
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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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Brushless dc motor Final report, 1 Apr. 1966 - 18 Apr. 1969
Small dc brushless motor with logic controlled semiconductor commutation power supply
Source record↗
Steady-state flux jumping in superconducting niobium titanium tubes in superimposed AC and DC magnetic fields.
Steady state flux jumping for thin walled tubular superconducting NbTi subjected to coaxial superimposed AC and DC magnetic fields, discussing effective resistivity
Dubeck, L.↗
Commutating brushes tested in dc motors in dry argon atmospheres
Test apparatus, procedures, and results are given for dc-motor brushes operating in dry argon. Minimum concentrations of argon impurities are also determined.
Bernstein, G. J.↗
Dc regulator for low pressure mercury lamps /pen-ray/
Dc regulator for low pressure mercury lamps /pen-ray/
Huguenin, D.↗
Brushless dc motor and controller Final report, Sep. 1969 - Mar. 1970
Design, fabrication, and functional testing of brushless dc motors with split winding connected in series or parallel
Hertzendorf, B. H.↗
Dc power supply engineered magnetics model EMPS-252 for Brayton cycle power conversion system Final report
Brayton cycle power system using dc power supply for space applications
Kruse, M.↗
Electrical breakdown and anode heat transfer in a DC arc with superimposed axial flow
DC electric arc with superimposed axial subsonic gas flow breakdown voltage and anode heat transfer using high speed photography
Pfender, E.↗
The design and some emission characteristics of an economical dc arc plasmajet excitation source for solution analysis
DC plasma arc jet excitation and emission characteristics for solution analysis with economical inert gas flow rates
Schrenk, W. G.↗
Satellite measurements of dc electric fields in the ionosphere
Ionospheric DC electric fields long period oscillations at high latitudes observed by polar orbiting Injun 5 satellite
Gurnett, D. A.↗
Rank-Order Statistics for Optimum Detection of Binary Signals in the Presence of White Noise and DC Drift (Correspondence)
The well-known technique of detecting binary pulses in white noise and unknown dc drift by means of a high-pass filter followed by a bit-by-bit detector is not theoretically optimum. The optimum procedure is shown to require a rank-ordering operation on the received data.
Butman, Stanley↗
Small-capacitance nondissipative ripple filters for DC supplies
Ripple filters for DC power supplies using reliable small capacitance capacitors suitable for spacecraft applications
Feng, S. Y. M.↗
The influence of a circuit parameter on the harmonics of a PWM dc-to-sinusoidal inverter
DC-to-sinusoidal inverter employing PWM waveform, analyzing circuit parameters effect on harmonic content
Babaa, I. M. H.↗
Modification of dc motor with magnetically suspended rotor to give higher momentum storage capacity, supplement Technical report, 1 Apr. - 31 Jul. 1970
Modification of dc motor with magnetically suspended rotor to increase momentum storage capacity
Source record↗
Investigation of DC-8 nacelle modifications to reduce fan-compressor noise in airport communities. Part 6 - Psychoacoustic evaluation Technical report, May 1967 - Mar. 1970
Psychoacoustic evaluation of modifications to DC-8 aircraft nacelles to reduce fan-compressor noise - Part 6
Gabriel, R. F.↗
Investigation of DC-8 nacelle modifications to reduce fan-compressor noise in airport communities. Part 5 - Economic implications of retrofit Technical report, May 1967 - Oct. 1969
Economic impact of modifications to DC-8 aircraft nacelles to reduce fan-compressor noise - Part 5
Cleveland, N. L.↗
Investigation of DC-8 nacelle modifications to reduce fan-compressor noise in airport communities. Part 3 - Static tests of noise suppressor configurations, May 1967 - October 1969
Static tests of noise suppressor configurations of DC-8 aircraft nacelle modifications to reduce fan-compressor noise levels - Part 3
Campbell, D. A.↗
Investigation of DC-8 nacelle modifications to reduce fan-compressor noise in airport communities. Part 2 - Design studies and duct-lining investigations, May 1967 - October 1969
Modifications to reduce fan-compressor noise level of DC-8 aircraft - Part 2
Frasca, R. L.↗