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  • Snyder, John Steven; Brophy, John R; Hofer, Richard R.; Goebel, Dan M.; Katz, Ira (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012, 2012-07-29)
    As NASA considers future exploration missions, high-power solar-electric propulsion (SEP) plays a prominent role in achieving many mission goals. Studies of high-power SEP systems (i.e. tens to hundreds of kilowatts) suggest ...
  • Sengupta, Anita; Fitzgerald, Dennis; Owens, Al (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005., 2005-07)
    Magnetic confinement studies were performed on the state-of-the-art NSTAR ion thruster. The goal of the experimental studies was determine the dependence of plasma confinement and plasma uniformity on the strength and ...
  • Mehdi, I.; Maestrini, A.; Pukala, D.; Schlecht, E.; Erickson, N. (2001-02-14)
  • Polk, J.E.; Goodfellow, K.D.; Pivirotto, T.J. (1994-06-27)
    A series of models have been developed to describe the temperature distribution of thermionic cathodes in high current discharges in an effort to evaluate cathode service life. A number of experimental measures have been ...
  • White, Christopher V.; van der Walde, Keith; Tippmann, Jeffery (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008, 2008-04-07)
    A developmental test program was conducted for the touchdown event of the Mars Science Laboratory rover. The test hardware consisted of a full-size 3/8th mass scaled test rover, a descent stage mass mock-up, and a Vectran ...
  • Polk, J. E.; Goodfellow, K. D. (1994-06)
  • Wu, X. “Frank”; Abbondanza, Claudio; Altamimi, Zuheir; Chin, T. Mike; Gross, Richard; Heflin, Mike (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012., 2012-04-22)
  • Brown, L.; Plymate, C. (1999-06)
    To support atmospheric remote sensing applications, line positions, intensities, self- and nitrogen-broadened line widths and their temperature dependence and pressure-induced frequency shift at room temperature were ...
  • Mack, L.; Kendall, J. (1993-11-21)
    In a series of experiments, Kendall has studied the random wave packets produced by freestream turbulence.
  • Korzh, B.A.; Zhao, Q-Y.; Frasca, S.; Allmaras, J.P.; Autry, T.M.; Bersin, E.A.; Colangelo, M.; Pena, C.; Sinclair, N.; Xie, S.; Crouch, G.M.; Dane, A.E.; Gerrits, T.; Marsili, F.; Moody, G.; Ramirez, E.; Rezac, J.D.; Stevens, M.J.; Wollman, E.E.; Zhu, D.; Hale, P.D.; Silverman, K.L.; Mirin, R.P.; Spiropulu, M.; Nam, S.W.; Kozorezov, A.G.; Shaw, M.D.; Berggren, K.K. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2018, 2018-11-12)
  • Widergren, Cynthia (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012., 2012-08)
    The driving factor for competed missions is the science that it plans on performing once it has reached its target body. These science goals are derived from the science recommended by the most current Decadal Survey. This ...
  • Waliser, Duane; Weickmann, Klaus; Dole, Randall; Schubert, Siegfried; Alves, Oscar; Jones, Charles; Newman, Matthew; Pan, Hua-Lu; Roubicek, Andres; Saha, Suranjana; Smith, Cathy; Van Den Dool, Huug; Vitart, Frederic; Wheeler, Matthew; Whitaker, Jeffrey (American Meteorological Society, 2006-04)
    Weather prediction is typically concerned with lead times of hours to days, while seasonal-to-interannual climate prediction is concerned with lead times of months to seasons. Recently, there has been growing interest in ...
  • Shen, Y.; Shaffer, S. J.; Veilleux, L. A.; Rosen, P. (2001-07-09)
  • Peng, Chia-Yen; Levine, Marie; Shido, Lillian; Leland, Robert (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004., 2004-08-02)
    This paper describes a unique experimental facility designed to measure damping of materials at cryogenic temperatures for the Terrestrial Planet Finder (TPF) mission at the Jet Propulsion Laboratory. The test facility ...
  • Alex Amblard; Beichman, Charles; Bock, James; Caldwell, Robert; Carlstrom, John; Church, Sarah; Cooray, Asantha; Dickenson, Clive; Dodelson, Scott; Dowell, Darren; Dragovan, Mark; Gaier, Todd; Ganga, Ken; Gear, Walter; Glenn, Jason; Golwala, Sunil; Gorski, Krzysztof; Hanany, Shaul; Heiles, Carl; Hivon, Eric; Holzapfel, Bill; Irwin, Kent; Jewell, Jeff; Kaplinghat, Manoj; Knox, Lloyd; Lee, Adrian; Lange, Andrew; Lawrence, Charles; Leitch, Erik; Levin, Steven; Matsumura, Tomotake (Pasadena, CA : Jet Propulsion Laboratory, California Institute of Technology, 2008, 2008-02)
    When we began our study we sought to answer five fundamental implementation questions: 1) can foregrounds be measured and subtracted to a sufficiently low level?; 2) can systematic errors be controlled?; 3) can we develop ...
  • Samuele, Rocco; Wallace, J. Kent; Schmidtlin, Edouard; Shao, Mike; Levine, B. Martin; Fregoso, Santos (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007, 2007-03-03)
    The crux of visible exoplanet detection is overcoming significant star-planet contrast ratios on the order of 10-7 to 10-10-at very small angular separations. We are developing an interferometric nulling coronagraph designed ...
  • Wallace, J. Kent; Bartos, Randall; Gappinger, Robert; Loya, Frank; Moser, Steve; Negron, John (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005., 2005-10)
    Our activities are focused upon the experimental demonstration of deep nulling in the mid-IR over a wide bandpass. Specifically, our near-term goal is demonstrating a contrast of 10^-6 at 10 um with a 25% spectral bandwidth.
  • Wallace, J.; Bartos, R.; Gappinger, R.; Loya, F.; Negron, J.; Moser, S. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005., 2005-10)
  • Pauken, Michael T.; Hall, Jeffery L. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006., 2006-06-29)
  • Hall, Jeffrey L.; Jones, J. A.; Kerzhanovich, V. V.; Lachenmeier, T.; Mahr, P.; Pauken, M.; Plett, G. A.; Smith, L.; Van Luvender, M. L.; Yavrouian, A. H. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006., 2006-07-16)
    This paper describes experimental results from a development program focused in maturing Titan aerobot technology in the areas of mechanical and thermal subsystems. Results from four key activities are described: first, a ...