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These equations can be used to obtain more accurate results for conductive heat transfer in toroid which is a curved spacecraft components. A comparison will be made (1) using the equations derived in this paper which takes into account the curvature of the toroid (true geometry) and (2) using flat plates to simulate the toroid.

Dedicated technology has been developed to support long-term biological experiments on-board spacecraft. These developments include a microgravity compatible tubular photo bioreactor for the cultivation of micro algae at very high biomass concentrations and with very high gas exchange rates, a microgravity compatible gas / liquid phase separator which also works as a pneumatic low shear-stress pump, a microgravity compatible dehumidifier, and a maltose separating reverse osmosis unit.

Lockheed Martin has revealed its concept for a new crewed lunar lander: a single stage, fully reusable system that incorporates flight-proven technologies and systems from the NASA Orion spacecraft. In its initial configuration, the lander would deliver a crew of four and 2,000 pounds of cargo to the Moon’s surface for up to two weeks.