State-of-the-art AGN SEDs for photoionization models: BLR predictions confront the observations
Explore the source record for details and available documents.
SEARCH · Search NASA
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.
Explore the source record for details and available documents.
V/stol aircraft - helicopter design - drag reduction - propellers and fixed wings in high speed flight
Electric propulsion - electrothermal, electro- static, electromagnetic, and heavy particle systems
Nuclear propulsion progress - kiwi-b reactor, propellant and engine development, rift project, and nerva engine
Current status of navigation, guidance, and control
Solar cell arrays for electrical power generation in space
Explore the source record for details and available documents.
Manufacturing techniques and alloy materials for cryogenic duct systems
Radioactive isotope electric power used on lunar surface - thermoelectric, thermionic, Brayton cycle, mercury-Rankine, Dowtherm-A Rankine systems, and Stirling engine
Electroencephalography for determining competency of man during orbital space flight
Electric propulsion systems discussing thrustors, propellant tankage and feed systems, power conditioning and controls
Rocket vehicle for synoptic meteorological soundings - evaluation of four proposed systems
Man as integral part of spacecraft - human physiology and space environment
Propeller rotor whirl flutter and instability in conventional and Vertical Takeoff and Landing /VTOL/ aircraft
Handbook on biological sensors, transducers, and signal conditioning amplifiers for spacecraft onboard test and data processing
Radiation-resistant solar cell incorporating electrical field
Drift-field solar cell fabrication with space environment radiation resistance capabilities