Voici les éléments 1-20 de 25065

    • Environmental Control and Life Support for Deep Space Travel 

      Stapleton, Thomas; Heldmann, Michael; Torres, Miguel; Bowers, Jason; Corallo, Roger (48th International Conference on Environmental Systems, 2018-07-08)
      NASA has outlined plans to transition from the Low Earth Orbit toward Earth independent exploration, evolving habitat capacity to support a trip to Mars, and return home three years later. The Environmental Control and ...
    • A Tailored Life Support System for the Single Person Spacecraft 

      Finger, Barry; Zimmerman, Brittany; Bower, Chad; Griffin, Brand; Woo, Caleb (48th International Conference on Environmental Systems, 2018-07-08)
      Equipped with integral propulsion and manipulators, the Single-Person Spacecraft (SPS) is designed for the inspection, servicing, and repair of exploration and commercial spacecraft during operational missions. No airlock ...
    • Thermal Management of JWST Cryo-Vacuum Test Support Equipment 

      Havey, Keith; Cooke, Dwight; Huguet, Jesse; Day, Robert (48th International Conference on Environmental Systems, 2018-07-08)
      In 2017, the James Webb Space Telescope (JWST) underwent functional testing and optical metrology verification of the combined Optical Telescope elements and Integrated Science Instrument Module (OTIS) under cryogenic ...
    • Swing Bed Scrubber Design and Test Integration Results for Carbon Dioxide Removal in the Ventilation Test Loop 2.0 

      Chullen, Cinda; Conger, Bruce; Mcmillin, Summer; Swickrath, Mike; Kanne, Bryan; Fricker, John; Arai, Tatsuya (48th International Conference on Environmental Systems, 2018-07-08)
      NASA is developing an advanced portable life support system (PLSS) to meet the needs of a new NASA advanced space suit. The PLSS provides the necessary oxygen, ventilation, and thermal protection for an astronaut performing ...
    • Low-Power, Chip-Scale, Carbon Dioxide Gas Sensors for Spacesuit Monitoring 

      Motayed, Abhishek; Chullen, Cinda; Rani, Asha; Shi, Chen; Thomson, Brian; Debnath, Ratan; Wen, Boamei (48th International Conference on Environmental Systems, 2018-07-08)
      N5 Sensors, Inc. through a Small Business Technology Transfer (STTR) contract award has been developing ultra-small, low-power carbon dioxide (CO2) gas sensors, suited for monitoring CO2 levels inside NASA spacesuits. Due ...
    • Sensor Integrated Pilot Mask for On-Board, Real-Time, Monitoring of Pilot Breathing Gas 

      Delgado, Jesus; Chullen, Cinda; Berry, David; Guzman, Narciso; Mottino, Sarah; Hellstern, George; Soto, Armando; Tripp, Lloyd (48th International Conference on Environmental Systems, 2018-07-08)
      A pilot’s job is unique in the demands it places on the human body, and many serious conditions can arise to impact pilot performance and pose a threat to mission completion and pilot safety. The gas environment of the ...
    • Developing Controlled Conductive Boundaries for JWST Cryogenic Testing 

      Cooke, Dwight; Havey, Keith; Huguet, Jesse; Day, Robert (48th International Conference on Environmental Systems, 2018-07-08)
      In 2017, the James Webb Space Telescope (JWST) underwent functional testing and optical metrology verification of the combined Optical Telescope Element and Integrated Science Instrument Module (OTIS) under cryogenic vacuum ...
    • A Trade-off Study of the Spacecraft Carbon Dioxide Management System using the Analytical Hierarchy Process 

      Richardson, Tra-My Justine; Jan, Darrell (48th International Conference on Environmental Systems, 2018-07-08)
      A Carbon Dioxide Management System (CMS) trade study was conducted to compare the Sabatier Assembly Compressor (SAC) used on the International Space Station (ISS) with the Air-Cooled Temperature Swing Compression System ...
    • Thermal Modeling of a Chip Based Cold-Atom Inertial Navigation System 

      Brown, Erich; Taft, Brenton; Oliver, Rachel; Irick, Kevin (48th International Conference on Environmental Systems, 2018-07-08)
      Inertial Navigation Units provide positioning data of an object when Global Positioning Systems are unable to do so. An anticipated main component of some future inertial navigation systems is a cold atom chip, that produces ...
    • Effects of additive manufacturing on capillary-driven fluid flow for provision of water and nutrients to free floating plants 

      Shaffer, Brett; Eble, Jonathan; Nabity, James; Escobar, Christine (48th International Conference on Environmental Systems, 2018-07-08)
      An autonomous environmentally controlled floating plant cultivation system needs robust water and nutrient delivery for use in microgravity. Passive fluid control in the microgravity environment can be accomplished through ...
    • On-orbit Experiment Plan of Loop Heat Pipe and the Test Results of Thermal Vacuum Test 

      Okamoto, Atsushi; Miyakita, Takeshi; Sato, Koki; Nagano, Hosei (48th International Conference on Environmental Systems, 2018-07-08)
      It is becoming increasingly difficult to meet the challenging thermal control requirements of modern spacecraft missions with only existing thermal control devices such as conventional heat pipes. A loop heat pipe (LHP) ...
    • Mechanical Counterpressure and Gas-Pressurized Fusion Spacesuit Concept to Enable Martian Planetary Exploration 

      Huerta, Roger; Kerr, Andrew; Anderson, Allison (48th International Conference on Environmental Systems, 2018-07-08)
      We present a spacesuit architecture to enable planetary exploration of Mars by combining mechanical counterpressure (MCP) with gas-pressurization (GP). To assess the feasibility and benefit of implementing two separate ...
    • Progress Report on the Spacecraft Atmosphere Monitor’s Development Model 

      Madzunkov, Stojan; Schowalter, Steven; Nikolic, Dragan; Simcic, Jurij; Bae, Byunghoon; Cisneros, Ivan; Schaefer, Rembrandt; Darrach, Murray (48th International Conference on Environmental Systems, 2018-07-08)
      The Spacecraft Atmosphere Monitor (S.A.M.) is a miniature gas chromatograph (GC) mass spectrometer (MS) intended for assessing trace volatile organic compounds and the major constituents in the atmosphere of present (the ...
    • Potential Evolution of Crop Production in Space Using Veggie 

      Hanford, Anthony; Anderson, Molly; Ewert, Michael; Stambaugh, Imelda (48th International Conference on Environmental Systems, 2018-07-08)
      Historically, the National Aeronautics and Space Administration (NASA) proposed large chambers to support crop production for food production in closed or partially closed regenerative life support systems. Such concepts ...
    • Trading Advanced Oxygen Recovery Architectures and Technologies 

      Lange, Kevin; French, Melanie; Abney, Morgan; Barta, Daniel (48th International Conference on Environmental Systems, 2018-07-08)
      A trade study was performed to evaluate several technologies designed to increase oxygen recovery from carbon dioxide compared to the International Space Station (ISS) state-of-the-art. The study employed an equivalent ...
    • Dynamic Modeling of Ammonia Removal with Phosphoric-Acid-Treated Activated Carbon 

      Roohi, Stephanie; Monje, Oscar; Perry, Jay; Lange, Kevin (48th International Conference on Environmental Systems, 2018-07-08)
      This paper describes the initial development of a dynamic model of ammonia removal by chemisorption using Ammonasorb II (Calgon Carbon), a phosphoric-acid-treated activated carbon. The model is being developed using a ...
    • Heat Melt Compactor Test Unit 

      Wetzel, John; Surdyk, Robert; Klopotic, Joe; Rangan, Kris (48th International Conference on Environmental Systems, 2018-07-08)
      The Heat Melt Compactor (HMC) is a logistical waste management system designed to process trash in support of human operations in space. Processing includes compressing the waste into a manageable tile and recovering water ...
    • Synthetic Biological Membrane Forward Osmosis Trade Study 

      Flynn, Michael; Mancinelli, Rocco; Romero-Mangado, Jaione; Shaw, Hali; Parodi, Jurek; Budair, Abdelrahman; Tatum, Simone (48th International Conference on Environmental Systems, 2018-07-08)
      This document provides a trade study for the Synthetic Biological Membrane (SBM). The objective is to compare the SBM technology against the current state of the art in spacecraft water recycling. The primary advantage ...
    • Laboratory Simulation of Sublimating Planetary Surface Ices: Experiment Design and Thermal Considerations 

      Berisford, Daniel; Furst, Benjamin; Foster, Jeffrey; Poston, Michael; Schoelen, Dane; Sahu, Daniel; Hofmann, Amy; Hand, Kevin; Daimaru, Takuro (48th International Conference on Environmental Systems, 2018-07-08)
      We have constructed a set of experimental apparatus to simulate the thermal environment at the surface of icy moons. Most of these moons, such as Europa, have little or no atmosphere, and therefore no liquid phase of ...
    • Planetary Protection Knowledge Gaps for Future Mars Human Missions: Stepwise Progress in Identifying and Integrating Science and Technology Needs 

      Spry, J Andy; Race, Margaret; Kminek, Gerhard; Siegel, Bette; Conley, Cassie (48th International Conference on Environmental Systems, 2018-07-08)
      NASA and COSPAR are engaged in a stepwise process to identify, prioritize and plan the R&TD needed for addressing planetary protection requirements for human missions beyond Earth orbit.  The objective is to move incrementally ...