Heavy Ion Testing of Freescale Nano-Crystal Nonvolatile Memory
This viewgraph presentation describes radiation tests of nanocrystal (NC) memory for space systems. A nanocrystal test chip was bombarded by heavy ions from a cyclotron.
Engineering topics
Publications and source records attributed to Kuhn, P..
This viewgraph presentation describes radiation tests of nanocrystal (NC) memory for space systems. A nanocrystal test chip was bombarded by heavy ions from a cyclotron.
'Forward-looking' infrared measurements of water vapor from the C-141A Kuiper Airborne Observatory of the National Aeronautics and Space Administration Ames Research Center show large, distinctly identifiable, signal anomalies from 4 to 10 minutes in advance of subsequent encounters with clear air turbulence (CAT). These anomalies are characteristically different from the signals not followed by CAT encounters. Results of airborne field trials in which the infrared radiometer was used indicate that, out of 51 situations, 80 percent were CAT alerts followed by CAT encounters, 12 percent were 'false alarms' (CAT alerts not followed by CAT encounters), and 8 percent were CAT encounters not preceded by an infrared signal anomaly or CAT alert.
"Forward-looking" infrared measurements of water vapor from the C-141A Kuiper Airborne Observatory of the National Aeronautics and Space Administration Ames Research Center show large, distinctly identifiable, signal anomalies from 4 to 10 minutes in advance of subsequent encounters with clear air turbulence (CAT). These anomalies are characteristically different from the signals not followed by CAT encounters. Results of airborne field trials in which the infrared radiometer was used indicate that, out of 51 situations, 80 percent were CAT alerts followed by CAT encounters, 12 percent were "false alarms " (CAT alerts not followed by CAT encounters), and 8 percent were CAT encounters not preceded by an infrared signal anomaly or CAT alert.
Residual tensile strength in presence of through cracks or surface cracks
Fracture design for airflight vehicles, discussing crack strength requirements and method for serviceability prediction
Strength of sheet metal parts containing cracks studied by simulating fail safe design
Fatigue and static notch strength analysis of low alloy steels and aluminum and titanium alloys at temperatures from cryogenic to moderately elevated
Fracture mechanics and notch analysis comparison
Fatigue and static strength notch factors in metal parts, using tensile properties and size effect
Prediction of notch and crack strength under static or fatigue loading