1–10 von 19 Ergebnissen
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    Gaseous Ammonia Removal in Biofilters: Effect of Biofilter Media on Products of Nitrification

    Joshi, Jitendra A. / Hogan, John A. / Finstein, Melvin S. et al. | SAE Technical Papers | 1998
    The use of biofilters for the control of air contaminants in Advanced Life Support (ALS) systems is currently being investigated by the ...

    Preliminary Study of Greenhouse Grown Swiss Chard in Mixtures of Compost and Mars Regolith Simulant

    Hogan, John A. / Logendra, Logan S. / Gilrain, Matthew R. et al. | SAE Technical Papers | 1999
    The growth of Swiss chard in compost, Mars regolith simulant, and mixtures thereof, was studied for application in Advanced Life Support ...

    Modeling of a Composting System within BIO-Plex

    Finn, Cory / Hogan, John A. / Rodriguez, Luis F. et al. | SAE Technical Papers | 2001
    reliable system, which will not only allow the crew to survive in harsh environments, but allow the crew time to perform meaningful research ...

    Considerations in Selection of Solid Waste Management Approaches in Long-Duration Space Missions

    Hogan, John A. / Fisher, John W. / Levri, Julie A. et al. | SAE Technical Papers | 2002
    collection, storage and return to Earth. NASA's long-term objectives, however, will likely include human-rated missions that are longer in both ...

    Air Biofilter Design and Integration in ALS Systems: Effect of Inlet Gas Carbon and Nitrogen Properties

    Qiao, Feng / Hogan, John A. / Strom, Peter F. | SAE Technical Papers | 2003
    of biofilters are tightly coupled with waste stream characteristics. In particular, the inlet gas carbon to nitrogen ratio (C:N) will ...

    An On-line Technology Information System (OTIS) for Advanced Life Support

    Hogan, John A. / Levri, Julie A. / Rodriguez, Luis et al. | SAE Technical Papers | 2003
    information.The lack of thorough, reliable and easily understood technology information is a major obstacle in effective assessment of technology ...
    Schlagwörter: Research and development

    Solids Thermophilic Aerobic Reactor for Solid Waste Management in Advanced Life Support Systems

    Whitaker, Dawn R. / Alleman, James E. / Lane, John W. et al. | SAE Technical Papers | 2004
    Schlagwörter: Research and development

    Architecture and Functionality of the Advanced Life Support On-Line Project Information System

    Whitaker, Dawn R. / Cavazzoni, Jim / Hogan, John A. et al. | SAE Technical Papers | 2004
    An ongoing effort is underway at NASA Ames Research Center (ARC) to develop an On-line Project Information System (OPIS) for the Advanced ...
    Schlagwörter: Research and development

    Influence of Planetary Protection Guidelines on Waste Management Operations

    Hogan, John A. / Fisher, John W. / Levri, Julie A. et al. | SAE Technical Papers | 2005
    Newly outlined missions in the Vision for U.S. Space Exploration include extended human habitation on Mars. During these missions, large ...
    Schlagwörter: Research and development

    Loading Balance and Influent pH in a Solids Thermophilic Aerobic Reactor

    Whitaker, Dawn R. / Alleman, James E. / Lane, John W. et al. | SAE Technical Papers | 2005
    investigation as part of the NASA Center of Research and Training (NSCORT) at Purdue University. Processing in the solids thermophilic aerobic reactor ...
    Schlagwörter: Research and development