Statistics – Applications
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14...47d&link_type=abstract
Advances in Space Research, Volume 14, Issue 11, p. 47-51.
Statistics
Applications
2
Scientific paper
The Porous Tube Plant Nutrient Delivery System or PTPNDS (U. S. Patent #4,926,585) has been under development for the past six years with the goal of providing a means for culturing plants in microgravity, specifically providing water and nutrients to the roots. Direct applications of the PTPNDS include plant space biology investigations on the Space Shuttle and plant research for life support in Space Station Freedom. In the past, we investigated various configurations, the suitability of different porous materials, and the effects of pressure and pore size on plant growth. Current work is focused on characterizing the physical operation of the system, examining the effects of solution aeration, and developing prototype configurations for the Plant Growth Unit (PGU), the flight system for the Shuttle mid-deck. Future developments will involve testing on KC-135 parabolic flights, the design of flight hardware and testing aboard the Space Shuttle.
Brown Stephen C.
Dreschel T. W.
Hinkle C. R.
Knott W. M.
Piastuch W. C.
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