Now showing items 2908-2927 of 10415

    • High speed photographic observation of flow patterns during flow boiling in single rectangular minichannel 

      Balasubramanian, Prabhu; Kandlikar, Satish (American Society of Mechanical Engineers (ASME), 2003-07)
      The present study extends the range of flow patterns observed during boiling of water in a single minichannel of height 197 mm and width 1054 mm. The calculated hydraulic diameter of the channel is 333 mm. High-speed ...
    • High tech master's degree for free 

      NTID (Rochester Institute of Technology, 2005-01-18)
      Deaf or hard-of-hearing college graduates with a bachelor’s degree are invited to apply to the Professional Fellowship Program at the National Technical Institute for the Deaf (NTID), a college of Rochester Institute of ...
    • A High-average power tapered FEL amplifier at submillimeter frequencies using sheet electron beams and short-period wigglers 

      Bidwell, S.; Radack, D.; Antonsen, T.; Booske, J.; Carmel, Y.; Destler, William; Granatstein, V.; Levush, B.; Lathem, P.; Zhang, Z. (Elsevier, 1990-09-17)
      A high-average-power FEL amplifier operating at submillimeter frequencies is under development at the University of Maryland. Program goals are to produce a CW, ~ 1 MW, FEL amplifier source at frequencies between 280 GHz ...
    • High-average-power CW FELs for application to plasma heating designs and experiments 

      Booske, J.; Granatstein, V.; Radack, D.; Antonsen, T.; Bidwell, S.; Carmel, Y.; Destler, William; Latham, O.; Levush, B.; Mayergoyz, I.; Zhang, Z. (IEEE, 1990)
      A short-period-wiggler (period - 1 cm), sheet-beam FEL has been proposed as a low-cost source of high-average-power (1 MW) millimeter-wave radiation for plasma heating and space-based radar applications. Recent calculations ...
    • A High-power backward-wave oscillator driven by a relativistic electron beam 

      Kehs, Alan; Bromborsky, Alan; Ruth, B.G.; Graybill, S.E.; Destler, William; Carmel, Y.C.; Wang, M.C. (IEEE - Transactions on plasma science, 1985-12)
      A high-power backward-wave oscillator (BWO) has been constructed that is driven by a relativistic electron beam (REB). A typical electron beam of 2-4 kA is accelerated across a diode potential of 650-800 kV and then guided ...
    • High-power microwave generation by excitation of a plasma-filled rippled boundary resonator 

      Carmel, Yuval; Minami, K.; Lou, Weiran; Kehs, R.; Destler, William; Granatstein, Victor; Abe, D.; Rodgers, J. (©1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE., 1990-06)
      An experimental demonstration of a strong enhancement of the interaction efficiency in a high-power relativistic backward-wave oscillator when plasma is injected is presented. Controlled plasma injection enhances the ...
    • High-power microwave generation from large-orbit devices 

      Destler, William; Chojnacki, E.; Hoeberling, R.; Lawson, W.; Singh, A.; Striffler, C. (IEEE, 1988-04)
      Experimental and theoretical studies at the University of Maryland on the production of high-power microwave radiation in cusp-injected, large-orbit devices are reviewed. Three classes of devices belonging to this ...
    • A High-power millimeter-wave sheet beam free-electron laser amplifier 

      Cheng, Shiqiu; Destler, William; Granatstein, Victor; Antonsen, Thomas; Levush, Baruch; Rodgers, John; Zhang, Z. (©1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE., 1996-06)
      The results of experiments with a short period (9.6 mm) wiggler sheet electron beam (1.0 mm x 2.0 cm) millimeter-wave free electron laser (FEL) amplifier are presented. This FEL amplifier utilized a strong wiggler field ...
    • High-resolution radio observations of Seyfert galaxies in the extended 12-micron sample - I. The Observations 

      Thean, Andy; Pedlar, Alan; Kukula, Marek; Baum, Stefi; O'Dea, Christopher (Blackwell Publishing, 2000-05)
      We present 8.4 GHz VLA A–configuration observations of 87 sources from the mid–infrared–selected AGN sample of Rush et al. (1993). These 0.25 arcsec resolution observations allow elongated radio structures tens of parsecs ...
    • High-resolution radio observations of Seyfert galaxies in the extended 12-micron sample - II. The Properties of compact radio components 

      Thean, Andy; Pedlar, Alan; Kukula, Marek; Baum, Stefi; O'Dea, Christopher (Blackwell Publishing, 2001-08)
      We discuss the properties of compact nuclear radio components in Seyfert galaxies from the extended 12 µm AGN sample of Rush et al. (1993). Our main results can be summarised as follows. Type 1 and type 2 Seyferts produce ...
    • High-Speed photographic observation of flow boiling of water in parallel mini-channels 

      Kandlikar, Satish; Steinke, Mark; Tian, Shurong; Campbell, Levi (American Society of Mechanical Engineers (ASME), 2001-06)
      The use of smaller passage dimensions is becoming more prevalent in flow boiling applications. Passages with hydraulic diameters on the order of 1mm provide higher heat transfer coefficients resulting in more compact ...
    • High-speed photographic observation of flow boiling of water in parallel mini-channels 

      Kandlikar, Satish; Steinke, Mark; Tian, Shurong; Campbell, Levi (American Society of Mechanical Engineers (ASME), 2001-06)
      The use of smaller passage dimensions is becoming more prevalent in flow boiling applications. Passages with hydraulic diameters on the order of 1mm provide higher heat transfer coefficients resulting in more compact ...
    • A high-tech day in the life of a deaf student 

      Leichman, Abigail (The Record, New Jersey, 2005-04-02)
    • A High-voltage triggered pseudospark discharge experiment 

      Ramaswamy, K.; Destler, William; Rodgers, J. (American Institute of Physics, 1996-11-01)
      The design and execution of a pulsed high-voltage (350–400 keV) triggered pseudospark discharge experiment is reported. Experimental studies were carried out to obtain an optimal design for stable and reliable pseudospark ...
    • Highly interactive multimedia application design 

      Yoo, Woo-Jong (1998-01-01)
    • Highly polarized structures in the near-nuclear regions of Cygnus A: Intrinsic anisotropy within the cones? 

      Tadhunter, Clive; Sparks, William; Axon, David; Bergeron, Louis; Jackson, Neal; Packham, Christopher; Hough, James; Robinson, Andrew; Young, Stuart (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2000-04)
      We present near-IR imaging polarimetry observations of the nucleus of Cygnus A, taken with the NICMOS camera of the HST at a wavelength of 2.0µm. These maps reveal a highly collimated region of polarized emission straddling ...
    • Hip Hop Popular Music Subject of Master’s Thesis 

      Austin, Bruce (Department of Communication, 2008-10-01)
    • Hiring people with disabilities benefits them, business, economy 

      Hurwitz, T. Alan (Democrat and Chronicle, 2006-10-19)
    • Histochemical and biochemical studies of the hepatopancreas peroxidase of the freshwater crayfish, Cambarus robustus 

      Merrill, Douglas; Reife, R.; Tiersch, T.; Austin, R. (Wiley: Journal of Morphology, 1985-05)
      Crayfish are among the few invertebrate species reported to possess endogenous peroxidase activity. The enzyme is found within the hepatopancreas, the principal digestive and absorptive organ of the crustacean body. Cambarus ...