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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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Impedance cardiograph for monitoring heart functions, and program for computing stroke volume and cardiac output from thoracic impedance changes during cardiac cycle
Design and development of transformer coupled output circuit for class D dc amplifier
Computer program developed to determine charged-particle irradiation effect on single solar cell power output
Electronically scanned star sensor with digital output for orbiting astronomical telescope
Terrain bias on Doppler system output obtained by transmit-receive system
Optimal control of linear systems with state variables generated by linear feedback from output variables, considering time variance
Smooth limiter effect on output of SNR for unbalanced and balanced FM discriminators, noting role of error function
Initial conditions estimation problem for nonlinear system asymptotic stability and satisfaction of output constraints on state variables
Switch uses a combination of N-channel and P-channel Metal Oxide Semiconductor Field Effect Transistors /MOSFET/ to obtain a normally open switch with no power applied. Series-shunt-series MOSFET switching achieves high input-output isolation.
Impedance cardiographic system to measure cardiac output and cardiovascular functions
Comparison of cardiac output by impedance cardiograph and dye dilution
Correlation between cardiac output estimates obtained by impedance and densitometer readings
Impedance cardiograph measurements of stroke volume, heart rate, and cardiac output changes in humans during postural tilt and pressure tests
Comparison of cardiac output values determined in humans by impedance and radioisotope flow measurements
Comparison of human cardiac output data obtained by thoracic impedance and blood flow measurements
Cardiac output from transthoracic impedance variations
Multiple phase-controlled parasitic load effects on turboalternator output speed control
Analysis for relating changes in heat input to power output of thermoelectric device