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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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Carbon dioxide oscillation frequency shift of rotation-vibration band, measuring variation dependence on pressure, discharge current and excitation
Stark effect produced frequency shifts in He-Ne laser, discussing electron energy and pressure dependence in discharge tube
Frequency shift keying detector behavior as function of bandwidth for several bandpass filters, discussing bandwidth optimization variation
Doppler shift measurements with double wedge technique applied to mass motion of air plasma escaping ends of theta pinch
Gravitational red shift measurement using synchronous satellite, argon laser and Fabry- Perot interferometer
Resistance to extinction as function of nonresponse incentive shift in rats
Rapid resistance shifts in cat cortex during click-evoked responses
Circuit, suitable for operation at high signal-to-noise ratio environments, recovers pulse-code modulated data from digital telemetry systems which use phase-shift keyed subcarrier techniques. This demodulator is easily constructed from microcircuit elements and may be applied where low-cost, relatively high-level signal systems are used.
Improved phase-shift-keyed detector contains an active filter circuit which uses an operational amplifier and resistor-capacitor network. The detector is used in the Saturn space vehicle and Apollo telescope mount command systems to translate an analog signal from the command receiver into digital information for the command decoder.
Frequency shifts observed in Alouette 2 cyclotron harmonic plasma resonances
Red shift-magnitude relation for universe model and observational data
Synthesis of pseudorandom distribution for sum values in feedback shift registers
Temperature dependent isomer shift and anharmonic binding of Sn 119 in niobium stannide, measuring Mossbauer recoil free fraction
Methane broadening and anomalously small pressure shift of 3.39 micron rotation-vibration line, using laser saturated molecular absorption
Doppler shift measurements of axial and rotational velocities in MPD arc, using reference lines from iron arc
Linear shift register synthesis algorithm found to coincide with Berlekamp iterative algorithm for decoding BCH codes
Apollo LM and CSM tracking systems boresight shift reducible by decreasing modulation indices or scaling factor alpha
Optical modulation through Doppler frequency shift obtained by rotating radial diffraction grating