 |
|
|
|
|
Carbon-Carbon Materials and Composites
Carbon-carbon composites, which have been used extensively for missile
applications, were a part of NASA's Apollo spacecraft heat shield system. The
development of carbon-carbon materials began in 1958 and was nurtured under
the U.S. Air Force space plane program, Dyna-Soar, and by numerous thermal
protection systems... | | The SPIN Model Checker: Primer and Reference ManualSPIN is the world's most popular, and arguably one of the world's most powerful, tools for detecting software defects
in concurrent system designs. Literally thousands of people have used SPIN since it was first introduced almost fifteen
years ago. The tool has been applied to everything from the verification of complex call processing... | | Kalman Filter Recent Advances and Applications
The discussion about the manned spacecraft program was initiated at NASA in 1959.
Only one year later, Dr. Kalman and Dr. Schmidt linked the linear Kalman filter and the
perturbation theory in order to obtain the Kalman-Schmidt filter, currently known as the
extended Kalman filter. This approach would be implemented in 1961 using an... |
|
Fuel Cell Research Trends
A fuel cell is an electrochemical energy conversion device. It produces electricity from
external supplies of fuel (on the anode side) and oxidant (on the cathode side). These react in
the presence of an electrolyte. Generally, the reactants flow in and reaction products flow out
while the electrolyte remains in the cell. Fuel... | | Spacecraft Power SystemsThe first man-made satellite was Sputnik I, launched and operated by Russia in the low Earth orbit in 1957. In the decade that followed, the American space exploration programs launched many Earth orbiting satellites. The first commercial geosynchronous satellite, Intelsat-1, was placed in orbit in 1965, and, in 1969, NASA’s Apollo-11 became... | | |
|
|
|
| Result Page: 4 3 2 1 |
