NASA NTRS · 19650000504
Electronic equipment design and packaging with capability of surviving hard impacts in unmanned lunar and planetary landings
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Lonborg, J. O.. 1964-09-30. High-impact survival. https://ntrs.nasa.gov/citations/19650000504
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Analytical model for microbial population survival times during heat sterilization studied for spacecraft applications, considering environment and exposure time
An analytical model is developed for the survival times of organisms in heat sterilization in which the probability of inactivation as a function of exposure time is log-normally distributed. Experimental data is examined relative to this model and it is concluded that the model is valid except during the initial period of heating when an additional interaction between the organisms and their surrounding medium appears to be present. At long heating times, the log-normal model appears more accurate for extrapolating to low survival probabilities than the usual logarithmic survivor curves and is generally more conservative.
Survival of microoranisms exposed to shock wave and cryogenic temperatures during upper atmospheric air sampling