Dr. Alexander Hoehn

(Reading, Writing, Speaking)

National Aeronautics and Space Administration (NASA): Cell Culture Unit, $127,464, 2002 to 2003.
United States Department of Education: FIPSE: International Masters of Sciences in Aerospace Engineering Sciences, $189,973, 09/01/1999 to 08/31/2001.
National Aeronautics and Space Administration (NASA): Porous Tube Insert Module, $24,940, 06/07/1999 to 08/15/1999.
National Aeronautics and Space Administration (NASA): Long-term Use Issues with Spaceflight Plant Growth Systems, $82,004, 05/01/1999 to 09/30/1999.
National Aeronautics and Space Administration (NASA): Design / Integration of WONDER – Water Offset Nutrient Delivery Experiment, $84,500, 03/31/03 to 09/30/03.
National Aeronautics and Space Administration (NASA): Research on System Technologies and Mass Flow Characteristics in a Closed Plant Growth Facility, $94,994, 03/01/98 to 02/28/99.

• A. Hoehn, Igor Brown, Sam Kounaves, Kennda Lynch (2007) Microbial Detection Arrays (MiDAs), a Novel Instrument for Unambiguous Detection of Microbial Metabolic Activity in Astrobiology Applications", ICES 2007, SAE-paper 2007-01-3190
• A. Hoehn, J.B. Freeman, K.K. Gifford, P. Koenig, S. Kuzminski, L.S. Stodieck (2007) Science Research and Education Modules for the CGBA Spaceflight Incubator, ICES 2007, SAE-paper 2007-01-3188, 10 pages
• H.D. Seelig, L.S. Stodieck, D.M. Klaus, W.W. Adams, W.J. Emery, A. Hoehn (2007) Relations of remote sensing leaf water indices to leaf water thickness in cowpea, bean, and sugarbeet plants, Remote Sensing of Environment [in press] doi:10.1016/j.rse.2007.05.002, In Press
• H.D. Seelig, A. Hoehn, L.S. Stodieck, D.M. Klaus, W.W. Adams, W.J. Emery (2007) The assessment of leaf water content using leaf reflectance ratios in the visible, near-, and mid-infrared, International Journal of Remote Sensing, In Press
• A. Hoehn, J.B. Freeman, P. Koenig, L.S. Stodieck, M. Vellone, S. Williams, J. deLuis, W. Feenstra, J.C. Parrish, S. Pretorius, L. Sun, S. Dyble, N. Searby, D. Vandendriesche (2006) Single Loop for Cell Culture (SLCC) - Development and Spaceflight Qualification of a Perfusion Cell Culture System, ICES 2006, SAE-paper 2006-01-2212., 10p. pages
• S.P. Kounaves, K.L. Lynch, I. I. Brown, A. Hoehn, D.S. McKay, S.M.M. Young (2006) Microbial Detection Array (poster and abstract), , , Astrobiology Magazine, Mar 2006, Vol. 6, No. 1: 282
• J.M. Clawson, A. Hoehn (2005) Global Estimates of the Photosynthetically Active Radiation at the Mars Surface, ICES 2005, SAE-paper 2005-01-2813, 10p. pages
• J.M. Clawson, A. Hoehn (2005) Stress-Accelerated Photodegradation of Space-Rated Flexible Transparent Films Exposed to Mars Surface UV, ICES 2005, SAE-paper 2005-01-2775, 10p. pages
• A. Hoehn, J.M. Clawson, J.B. Freeman, L.S. Stodieck (2005) Temperature and Humidity Control Capabilities and Limitations of a Spaceflight Plant Growth Chamber, ICES 2005, SAE-paper 2005-01-2845, 10p. pages
• A. Hoehn, J.M. Clawson, C. Higgins, J. Jairala, P. Journey-Kahler, J. Lee, L.S. Stodieck (2005) Carbon Dioxide Scrubbers for Controlling the Gaseous Composition of Spaceflight Plant Growth Chambers - Design Trades and Test Results, ICES 2005, SAE-paper 2005-01-2954, 10p. pages
• J.M. Clawson, A. Hoehn, R.M. Wheeler (2005) Inflatable Transparent Structures for Mars Greenhouse Applications, ICES 2005, SAE-paper 2005-01-2846, 10P. pages
• A. Hoehn, D.M. Klaus, L.S. Stodieck, A Modular Suite of Hardware Enabling Space Flight Cell Culture Research, Journal of Gravitational Physiology, International Society of Gravitational Physiology, 11(1), 39-50, 2004
• A. Hoehn, J. Clawson, J.B. Freeman, J. Genova, K.K. Gifford, L.S. Stodieck (2003) Thermal Design of a Spaceflight Plant Chamber Payload.", ICES 2003, SAE-paper 2003-01-2583, 10p. pages
• A. Hoehn, M. Sampson, H.D. Seelig, L.S. Stodieck, A.G. Heyenga (2003) Spaceflight Plant Science Integration, Testing and Functional / Compatibility Verification, ICES 2003, SAE-paper 2003-01-2480, 10p. pages
• Scovazzo P, Illangasekare TH, Hoehn A, Todd P, Modeling of two-phase flow in membranes and porous media in microgravity as applied to plant irrigation in space, Water Resources Research, 37(5), 1231-43, May 2001
• Stodieck, L., Hoehn, A., and Klaus, D., Commercial Space Life Sciences Research: Opportunities and Challenges on the International Space Station, Proceedings of the AIAA Conference on ISS Utilization, AIAA-2001-4911., 2001
• Kliss, M., Heyenga, A.G., Hoehn, A. and Stodieck, L.S., Recent Advances in Technologies Required for a Salad Machine, Advances in Space Research, 26(2), 263-269, 2000
• Scovazzo, P., Todd, P., Hoehn, A., Membrane Porosity and Hydrophilic Membrane-Based Dehumidification Performance, Journal of Membrane Science, 167, 217-225, 2000
• Heyenga AG, Forsman A, Stodieck LS, Hoehn A, Kliss M, Approaches in the determination of plant nutrient uptake and distribution in space flight conditions, Advances in Space Research : the Official Journal of the Committee On Space Research (cospar)., 26(2), 299-302, 2000
• Scovazzo, P., Burgos, J., Hoehn, A., and Todd, P., Hydrophilic membrane-based humidity control, Journal of Membrane Science, 149(1), 69-81, 14 Oct 1998
• Fleet ML, Simske SJ, Hoehn A, Schmeister TA, Luttges MW, An autonomous module for supporting mice during spaceflight, Microgravity Science and Technology, 8(1), 62-7, May 1995
• Adams, W.W. III, Hoehn, A., Demmig-Adams, B., Chilling temperatures and the xanthophyll cycle. A comparison of warm-grown and overwintering spinach, Australian journal of plant physiology, 22(1), 75-85, 1995
• Luttges MW, Stodieck L, Hoehn A, Plant-module for autonomous space support (P-MASS), Advances in Space Research : the Official Journal of the Committee On Space Research (cospar)., 14(11), 53-60, November 1994
• Shah S, Faller WE, Hoehn A, Birdsong M, Luttges MW, Characterization of fluid distribution through a porous substrate under dynamic g conditions, Biomedical Sciences Instrumentation, 29, 401-8, 1993
• J. Clawson, A. Hoehn, K. Maute, Materials for Transparent Inflatable Greenhouses, ICES 2003, SAE-paper 2003-01-2326, 10p. pages
• A. Hoehn, J. Clawson, T. Geissinger, W. Kalinowski, J. Pineau, P. Scovazzo, Design, Testing and Operation of Porous Media for Dehumidification and Nutrient Delivery in Microgravity Plant Growth Systems, ICES 2003, SAE-paper 2003-01-2614, 10p. pages