1–20 of 66 hits
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    NASA Helium

    T. M. Elam | NTIS | 2021
    Keywords: Helium

    Plasmasphere from the DE 1 Retarding Ion Mass Spectrometer

    Gallagher D. L. | NTIS | 2015
    Keywords: Helium ions , Helium plasma

    Observed Plasmaspheric Ion Densities and Temperatures

    D. Gallagher / P. Craven / H. Comfort | NTIS | 2014
    Keywords: Helium ions

    Atmospheric Mining in the Outer Solar System:

    Palaszewski, Bryan A. | NTRS | 2014
    Keywords: helium 3

    U.S. High Altitude PV Measurement for Primary Calibration Standard Certification

    J. S. McNatt / D. S. Wolford / M. G. Myers | NTIS | 2012
    Keywords: Helium

    Spitzer Orbit Determination During In-orbit Checkout Phase

    Menon, Premkumar R. | NTRS | 2004
    Keywords: helium venting

    Avionics GPB Control System Analysis

    NTIS | 2003
    Keywords: Helium

    Arcjet Plasma Neutralization of Hall Thrusters I: Hybrid Thruster Mission Analysis

    W. A. Hargus / J. H. Schilling / Q. E. Walker et al. | NTIS | 2003
    Keywords: Helium arcjet neutralizers

    Momentum Flux Measurements from Under Expanded Orifices: Applications for Micropropulsion Systems

    A. D. Ketsdever / A. A. Green / E. P. Muntz | NTIS | 2001
    Keywords: Helium

    Cassini Encounter with Earth: Planetary Magnetic Field Measurements

    Smith, E. / Southwood, D. | NTRS | 2000
    Keywords: orbiter helium magnetometer

    Propulsion System for a Scientific Micro/Nanospacecraft

    Yankura, G. / Lewis, J. | NTRS | 1999
    Keywords: helium

    Microgravity Scaling Theory Experiment - Experiment Implementation Plan

    Hahn, I. / Weilert, M. | NTRS | 1999
    Keywords: MISTE LTMPF helium-3 critical point

    The Fast Alternative Cryogenic Experiment Testbed

    Holmes, W. / Craig, J. / Abbott, R. et al. | NTRS | 1999
    Keywords: helium

    Measurement of Magnetostriction Between 4.2 and 77K

    Dooley, J. A. / Lindensmith, C. / Chave, R. et al. | NTRS | 1998
    Keywords: liquid helium valves micropositioning devices IR satellite optics cooling

    The Confined Helium Experiment (CHEX): The Successful Return on the Low Temperature Platform Facility (LTPF) To Space

    Larson, M. / Pearson, D. / Elliott, S. et al. | NTRS | 1998
    Keywords: Low Temperature Platform Facility (LTPF) Confined Helium Experiment (CHEX)

    The Confined Helium Experiment (CHEX): The Successful Return of The Low Temperature Platform Facility (LTPF) To Space

    Larson, M. / Pearson, D. / Elliott, S. et al. | NTRS | 1998
    Keywords: Confined Helium Experiment (CHEX) Low Temperature Platform Facility (LTPF)

    Transient Analysis of X-34 Pressurization System

    A. Hedayat / K. C. Knight / R. H. Champion | NTIS | 1998
    Keywords: Helium

    Gas Contamination Effects on Pulse Tube Performance

    Hall, J. L. / Ross, R. G. | NTRS | 1997
    Keywords: Pulse Tube Helium Cryocooler

    Dynamical Models for Sloshing Dynamics of Helium 2 Under Low-G Conditions

    R. J. Hung / Y. T. Long | NTIS | 1997
    Keywords: Liquid helium 2