Aerospace & Aviation

Surface energy of solid silver - low temperature experimental determinations

Cooling thrust chamber of liquid propellant rocket engine using pyrolytic graphite and hydrocarbon film

Electrical characteristics of irradiated silicon solar cells as function of temperature

Booster parametric design method for performance and trajectory analysis - propulsion

Effect of surface states and photovoltaic effect on oxide-semiconductor interface

Current and voltage behavior of silicon cells subjected to low energy proton irradiation

Thermal expansion of yttrium oxide and of magnesium oxide with yttrium oxide

Handbook of location and function of nasa facilities

Link from communications satellite to small ground station

Lunar surface topography

New way of coupling two complementary transistors in flip-flop circuit

Energy and time beta-ray spectra from fission of uranium and plutonium

A basic component of any ultrahigh-vacuum system is a seal capable of isolating a test chamber from its higher pressure surroundings. Two of the most common vacuum seals now in use are the elastomer O-ring seal and the metallic shear seal. The former has the problem of outgassing and gas permeation; the latter requires a large force per unit seal-length to maintain the sealing action. The search for a seal which would provide minimal virtual and real leak rates in a chamber, without requiring a large force to consummate the seal, led to investigation of a liquid-metal seal.

Calibration of five channel tiros satellite radiometer

Beam extraction system for synchrocyclotron