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Technical Paper

Simple Mathematical Models for Estimating the Bio-Contamination Transported from a Lander or a Rover to the Martian Soil

2000-07-10
2000-01-2422
To enable reliable in situ, or sample return, life detection missions, it is critical that Mars missions be free of any biological materials that originated from Earth and could contaminate samples collected for analysis. Therefore, it is important that likely cross-contamination mechanisms be thoroughly studied and understood. Three simple models have been developed to estimate the maximum soil contamination that could originate from a bio-contaminated lander. All three models estimate the ground contamination concentrations at various distances from the lander. The first model estimates the ground concentration if the microorganisms covered the soil 360° around the lander. The second model uses a steady state Gaussian plume to transport the microorganisms from the Lander. The third model determines the ground contamination level from an instantaneous Gaussian puff release, probably at the time of landing.
Technical Paper

Search for Life on Mars and ExoMars Planetary Protection Approach

2009-07-12
2009-01-2394
ExoMars will deploy a Rover carrying a suite of instruments dedicated to exobiology and geology research. The Rover will travel several kilometres searching for traces of past and present signs of life, collecting and analysing samples from within surface rocks and from the subsurface, down to a depth of 2 metres.
Technical Paper

Results of Plasma-Generated Hydrophilic and Antimicrobial Surfaces for Fluid Management Applications

2007-07-09
2007-01-3139
Key innovations of the MFS-based DHCS include passive humidity collection, control, and phase separation without moving parts, durable surface properties without particulate generation and accumulation, and the ability to scale up, or network in a distributed manner, a compact, modular device for Exploration applications including space suits, CEV, Rovers, Small and Transit Habitats and Large Habitats.
Technical Paper

Space Radiation Exposure Mitigation: Study of Select Materials

2006-07-17
2006-01-2103
The development of “next generation” human-rated space vehicles, surface habitats and rovers, and spacesuits will require the integration of low-cost, lightweight materials that also include excellent mechanical, structural, and thermal properties.
Magazine

Mobility Engineering: December 2014

2014-12-01
Oil debris monitoring in aero engines In a gas turbine engine, small particles or "chips" are generated at the point of wear, serving as an advanced warning that catastrophic failure will occur if the wear is not addressed. Health monitoring systems, such as oil debris monitoring, are used to find these small particles so that the wear can be resolved before it's too late. Indigenous powertrain development Customer needs and expectations on drivability, fuel economy, and safety has pushed Indian and multinational OEMs to think about the development of powertrains and gearboxes for local needs with global standards. The next wave of crash simulation As computing speed has improved and software itself has made significant speed and performance gains with each release, modeling tools are now quick enough to build high-quality, large, high-detail vehicle models in a very efficient manner.
Magazine

SAE Powertrain & Energy 2012-01-25

2012-01-25
Alternative fuels heat up This is a rich time for combustion researchers. The need for better fuel efficiency and improved emissions has never been greater. New software model to help engine makers meet diesel soot standards Simulation enables engineers to predict particulate formation early in the design process.
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