SEARCH · Engineering Papers
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Human water, caloric, and protein requirements in simulated life support system with dietary restriction
Regulation of sodium excretion in dog, and effects of atrial size and function upon secretion of sodium load - circulatory response to upright tilt
Cardiovascular system parameter and property effects on transmission characteristics of sounds and pressure pulses
Spectral reflectance and thermal emission of conifer and hardwood leaves under moisture stress
Carbon metabolism in Hydrogenomonas transition from autotrophism to heterotrophism
Sinusoidal motion effects on crew performance during space flight
Electronic instrumentation for body impedance change and electrocardiographic measurements using unattached electrodes
Biophysical evaluation of humans during space flight simulation in closed life support system
Energy expenditure and workloads measurements during simulated manned lunar mission
Skin sweating during exercise as described by linear function of metabolic rate and ambient air temperature
Explore the source record for details and available documents.
Regulation of sodium excretion in healthy, obese volunteers, and circulatory response to orthostatic stress in man
Prolonged space flight effects on human circulatory system
Ring oscillator and strain gage transmitter development for multichannel biotelemetry system
Circuitry for blood flow and pressure probes
Explore the source record for details and available documents.
Explore the source record for details and available documents.
To record biopotentials with extreme dynamic ranges, biopotential inputs are capacitatively coupled to a miniature, low power, solid-state signal conditioner consisting of a two-stage differential preamplifier that has a low noise figure. The ouput of the preamplifier uses diodes to provide an overall gain which is nearly logarithmic.