Now showing items 61-80 of 26080

    • Implementation of Advanced Sorbents in a Pressure-Swing Carbon Dioxide Removal System 

      Smalls, Nevin; Willimack, Bradley; Krohn, Thomas; Bui, Tho; Alston, Zachary; Alleman, James; Slowing, Igor; Paskach, Thomas (2020 International Conference on Environmental Systems, 2020-07-31)
      As the future ambitions of NASA have turned towards deep space missions, a search for an alternative to current carbon dioxide (CO2) removal systems, namely the Carbon Dioxide Removal Assembly (CDRA) on ISS, is underway. ...
    • A Multidisciplinary Scientific Outreach Journal Designed for and Made by Middle and High School Students to Bring Research Closer to the Classroom 

      Poulet, Lucie; Vernay, Antoine; Goncalves, Barbara; Dalmas, Banjamin; Vernay, Mathilde (2020 International Conference on Environmental Systems, 2020-07-31)
      One mission of a researcher is to share their work and results with the general public but there is a real challenge in accurately and effectively sharing scientific results with a broad audience. Indeed, they are published ...
    • xEMU Lower Torso Assembly (LTA) Brief Fleet Sizing Study 

      Davis, Kristine; Rhodes, Richard; Kim, Han; Benson, Elizabeth; Hernandez, Yaritza; Vu, Linh; Rajulu, Sudhakar (2020 International Conference on Environmental Systems, 2020-07-31)
      The Exploration Extravehicular Mobility Unit (xEMU) project is tasked with building a spacesuit for the lunar 2024 missions. These missions will require a mobile Lower Torso Assembly (LTA) to fit the required range of ...
    • Exploiting Capillary Sorbent Films for Air Revitalization aboard Spacecraft: Analysis of a Semi-Passive CO2 Scrubber 

      Weislogel, Mark; Torres, Logan; Jenson, Ryan; Graf, John; Hand, Lawerance; Belancik, Grace; Jan, Darrell; Levri, Julie (2020 International Conference on Environmental Systems, 2020-07-31)
      Liquid sorbents have provided a primary means for robust carbon dioxide (CO2) control aboard submarines for decades. Unfortunately, such systems have not been adopted for use aboard spacecraft due to the fact that fine ...
    • Hands-on Seminar on Electrolysis and Fuel Cells for Life Support System Applications for Students at the University of Stuttgart 

      Keppler, Jochen; Detrell, Gisela; Fasoulas, Stefanos (2020 International Conference on Environmental Systems, 2020-07-31)
      At the Institute of Space Systems (IRS) at the University of Stuttgart, a hands-on seminar on electrolysis and fuel cells for Life Support System (LSS) applications is offered to the aerospace engineering master students. ...
    • g-C3N4 Photocatalyst based Water Purification System for Crewed Space Missions 

      Terrazas, Jordan; Rangan, Krishnaswamy; Shuai, Danmeng (2020 International Conference on Environmental Systems, 2020-07-31)
      Water recovery from wastewater sources is critical for long-duration space missions. Without an efficient system water recovery on-board, life support system launch weights are practically impossible. Water recovery systems ...
    • A Preliminary Modeling Study of Biofilm Accumulation in the Water Recovery System 

      Diaz, Angie; Li, Wenyan; Irwin, Tesia; Calle, Luz; Angle, Geoffrey; Velez Justiniano, Yo-Ann; Nur, Mononita; Callahan, Michael (2020 International Conference on Environmental Systems, 2020-07-31)
      Bacterial biofilms are ubiquitous in wastewater systems on earth and in spacecraft, such as in the International Space Station (ISS) wastewater processing assembly (WPA), where they cause problems in the tank, solenoid ...
    • Nanotechnology for Beyond Earth Water Treatment 

      Rogers, Tanya; Alabastri, Alessandro; Halas, Naomi; Mathieu, Jacques; Alvarez, Pedro; Carter, Layne; Wong, Michael; Verduzco, Rafael; Metz, Jordin; Dongare, Pratiksha D. (2020 International Conference on Environmental Systems, 2020-07-31)
      NASA has embarked on a journey to enable human exploration on the Moon and Mars by 2024. These long duration missions beyond low earth orbit (LEO) will require advanced water treatment and reuse technologies for life support ...
    • Chitosan-based Biocides for Water Disinfection 

      Martinelli, Larry; Vig, Komal (2020 International Conference on Environmental Systems, 2020-07-31)
      NASA’s current efforts are focused on long-duration flights to the Moon, Mars and beyond. Potable water is a fundamental requirement for crew consumption, specific hardware applications and more recently for plant growth ...
    • Plant Water Management in Microgravity 

      Hatch, Tyler; Weislogel, Mark; Mungin, Rihana; Hernandez, Maria (2020 International Conference on Environmental Systems, 2020-07-31)
      The NASA Plant Water Management (PWM) technology demonstrations aboard ISS apply recent advances in microgravity capillary fluidics research towards the mundane yet problematic challenges of simply watering plants in space. ...
    • Mitigation of Silver Ion Loss from Solution by Polymer Coating of Metal Surfaces, Part II 

      Vance, John; Delzeit, Lance (2020 International Conference on Environmental Systems, 2020-07-31)
      “Spacecraft potable water systems require a biocidal agent that effectively provides both immediate and residual disinfection over long periods of time. Ionic silver (Ag+) is a leading candidate for this application, but ...
    • A Thin Film Liquid Sorbent Reactor for CO2 Scrubbing Aboard Spacecraft 

      Mohler, Samuel; Weislogel, Mark (2020 International Conference on Environmental Systems, 2020-07-31)
      For decades, direct contact liquid-gas CO2 sorbent beds have functioned successfully aboard confined crewed vehicles (i.e., submarines). Despite the unique challenges of microgravity fluids management, such approaches also ...
    • A comparison study on thermal control techniques for a nanosatellite carrying infrared science instrument 

      Selvadurai, Shanmugasundaram; Chandran, Amal; Valentini, David; Edwin, Teo Hang Tong; Chandrakant Joshi, Sunil; Olschewski, Friedhelm (2020 International Conference on Environmental Systems, 2020-07-31)
      Based on current technological advancements and forecasts, nanosatellites will be used for both scientific and defense applications leveraging advantages on both development cost and development lifecycle. As nanosatellites ...
    • Antaeus: Concept for a Sample Receiving Lab/Planetary Quarantine Facility at the Gateway 

      Cohen, Marc M.; Barker, Donald; Bennett, N. Robert; Bianco, Suzana De Oliviera; Ge, Shen; Mancinelli, Rocco; Zacny, Kris A. (2020 International Conference on Environmental Systems, 2020-07-31)
      Antaeus will provide an integrated system in a module designed to receive samples with biological potential from the Moon and Mars to perform preliminary handling, processing, curation, storage, and analysis. OPERATIONS: ...
    • Lunar Daytime: Behavioral Experiments in a Space Analog Living and Working Environment 

      Cohen, Marc M.; Barker, Donald C.; Bianco, Suzanna De Oliviera; Bishop, Sheryl; Gentile, Ronald; Haeuplik-Meusburger, Sandra; de Leon, Pablo; Wise, James (2020 International Conference on Environmental Systems, 2020-07-31)
      The Lunar Daytime concept addresses the challenge to behavioral scientists and architectural researchers in conducting research in space habitats or habitat analogs to produce scientifically valid results. Historically, ...
    • Advanced Hot Reservoir Variable Conductance Heat Pipes for Planetary Lander 

      Lee, Kuan-Lin; Tarau, Calin; Lutz, Andrew; Anderson, William; Huang, Cho-Ning; Kharangate, Chirag; Kamotani, Yasuhrio (2020 International Conference on Environmental Systems, 2020-07-31)
      The next generation of Lunar rovers and landers require variable thermal links to maintain payload temperatures nearly constant over wide sink temperature fluctuations. It has been demonstrated on earth that a hot reservoir ...
    • Psyche Magnetometer Engineering Model Test and Thermal Model Correlation to Validate Operational Thermal Requirement 

      Maghsoudi, Elham; De Soria-Santacruz Pich, Maria; Leneman, David; Caron, Ryan (2020 International Conference on Environmental Systems, 2020-07-31)
      Psyche Fluxgate Magnetometer candidate fabricated by UCLA has a critical temperature gradient requirement inside the magnetometer sensor head. Since the temperature gradient requirement is a driving factor for the magnetometer ...
    • Performance Testing and Modeling of a Scaled Fusible Heat Sink Test Article for Exploration Vehicles 

      Hillstrom, Alexander; Massina, Christopher; Foley, Lauren; Abraham, Brittany; Andish, Kambiz (2020 International Conference on Environmental Systems, 2020-07-31)
      A water based fusible heat sink is envisioned for use in several future human space vehicles ranging from a deep space habitable airlock to lunar rovers. This radiator concept has the potential to enable active thermal ...
    • Contingency operations on the Deep Space Gateway: Approaches, and Considerations to Orbiting Platforms for Deep Space Exploration 

      Zuniga, David; Sturtz, Rachel; Sargusingh, Miriam; Casper, Stephanie; Tressler, Chad (2020 International Conference on Environmental Systems, 2020-07-31)
      Deep space architectures present several challenges for mission planners that range from orbital trajectories, to logistics resupply. Given the maturity and knowledge gained in the development of space systems up to the ...
    • Analysis of Candidate Technologies for a Partial Gravity Water Recovery System 

      Baryakova, Tsvetelina; Lange, Kevin (2020 International Conference on Environmental Systems, 2020-07-31)
      The development of a Partial Gravity Water Recovery System (PGWRS) for a future long-duration mission to a lunar/planetary surface is an unmet need. The Water Recovery System currently used aboard the ISS recovers potable ...