Now showing items 578-597 of 598

    • V344 Lyrae: A touchstone Su UMa cataclysmic variable in the Kepler field 

      Wood, Matt A.; Still, Martin D.; Howell, Steve B.; Cannizzo, John K.; Smale, Alan P. (2011-10-24)
      We report on the analysis of the Kepler short-cadence (SC) light curve of V344 Lyr obtained during 2009 June 20 through 2010 March 19 (Q2-Q4). The system is an SU UMa star showing dwarf nova (DN) outbursts and superoutbursts, ...
    • Validity and Reliability of a Mini - Situational Judgment Test (SJT) for Pilots 

      Shi, Lu (2014-07)
      Situational judgment test (SJT) was developed by Hunter (2002) to test pilot judgment. SJT is very useful. However, this test takes too long for participants to complete. A mini-SJT was developed with shortened questions. ...
    • Variability timescales in the M87 jet: signatures of E^2 losses, discovery of a quasi period in HST-1, and the site of TeV flaring 

      Harris, Daniel E.; Cheung, Chi C.; Stawarz, Łukasz; Biretta, J. A.; Perlman, Eric S. (2009-06-11)
      We investigate the variability timescales in the jet of M87 with two goals. The first is to use the rise times and decay times in the radio, ultraviolet, and X-ray light curves of HST-1 to constrain the source size and the ...
    • The Variation in the Occurrence of Diatoms in the External Mucus of Florida Sharks 

      Nakachi, Kaikea
      Elasmobranch skin has been extensively studied for its drag-reducing hydrodynamic structure and its implications for reduction in ship fuel cost1. Shark mucus and biofilm may also have antifouling properties of interest ...
    • Visible-light activatable organic CO-releasing molecules (PhotoCORMs) that simultaneously generate fluorophores 

      Peng, Ping; Wang, Chaoming; Shi, Zheng; Johns, Valentine K.; Ma, Liyuan; Oyer, Jeremiah; Copik, Alicja; Igarashi, Robert; Liao, Yi (2013-07-31)
      Novel organic photoCORMs based on micelle-encapsulated unsaturated cyclic α-diketones were designed and synthesized. These photoCORMs can be activated by visible light, have potentially low toxicity, allow the delivery of ...
    • Voice Controlled Robotic Arm 

      Barla, Abhishek
      The Voice Controlled Robotic Arm (VCRA) is, as the name suggests, a robotic arm that picks up a block from one place and drops it at another, using voice commands. The robotic arm is connected to a PC using a USB. On the ...
    • Voice Controlled TV 

      Alshatti, Yousef; Alshamisi, Ahmed; Alqabandi, Khalifah; Almatham, Mohammed
      The voice controlled TV as we are designing is a system that can recognize voice commands and is independent of any speaker and can control a Television. There will be some keywords that are selected for the system to ...
    • Weather Station 

      ALmasabi, Sakher; ALmemarii, Mohamed; ALmemari, Omar
      Weather station consisting of a number of sensors Sensors continuously transmit their readings wirelessly Readings are received by an android app on a mobile phone and the app displays the data sent by the weather station ...
    • Web-based trend analysis of rocket data using XML 

      Gibson, Mark Randall (2005-01-22)
      This paper will discuss and prove the feasibility of using XML to transfer, compare, and view data created during automated testing of black boxes; stored both in simple text format and relational database format. This ...
    • WebSpy: an architecture for monitoring web server availability in a multi-platform environment 

      Thirukonda, Madhan M.; Becker, Shirley A. (2002-05-08)
      For an electronic business (e-business), customer satisfaction can be the difference between long-term success and short-term failure. Customer satisfaction is highly impacted by web server availability, as customers expect ...
    • Wheelchair-Mounted Exercise Equipment for Paraplegics 

      Aljohani, Kamal; Enderli, Tanya; Guan, Shan; Hillman, Drake
      According to the National Spinal Cord Injury Statistical Center (NSCISC) there are over 276,000 people living with a spinal cord injury in the United States, and 41% of these injuries are classified as paraplegia. Since ...
    • The white dwarfs within 25 pc of the sun: Kinematics and spectroscopic subtypes 

      Sión, Edward M.; Holberg, Jay B.; Oswalt, Terry D.; McCook, George P.; Wasatonic, Richard P.; Myszka, Janine (2014-05-01)
      We present the fractional distribution of spectroscopic subtypes, range and distribution of surface temperatures, and kinematical properties of the white dwarfs (WDs) within 25 pc of the Sun. There is no convincing evidence ...
    • Wing Tip Vortex Reduction 

      Seliquini, Sky; Azelis, Augustus; Al-Sulaiti, Mohammed; Kasyanju, Ambonisye; Lopez, Vanessa; Al Metwali, Mohammed; Vogel, Noah; Fry, John
      Winglets are used vastly in commercial jets. The main purpose of a winglet is to minimize the vortex effect forming at the tip of the wing in result to the transition between higher pressure and lower pressure. The main ...
    • X-ray emission from magnetic massive stars 

      Nazé, Yaël; Petit, Véronique; Rinbrand, Melanie; Cohen, David H.; Owocki, Stanley P.; Ud-Doula, Asif; Wade, Gregg A. (2014-10-30)
      Magnetically confined winds of early-type stars are expected to be sources of bright and hard X-rays. To clarify the systematics of the observed X-ray properties, we have analyzed a large series of Chandra and XMM-Newton ...
    • An X-ray imaging survey of quasar jets: Testing the inverse Compton model 

      Marshall, Herman L.; Gelbord, Jonathan M.; Schwartz, Daniel A.; Murphey, David W.; Lovell, James E. J.; Worrall, Diana M.; Birkinshaw, Mark; Perlman, Eric S.; Godfrey, Leith E. H.; Jauncey, David L. (2011-03-01)
      We present results from continued Chandra X-ray imaging and spectroscopy of a flux-limited sample of flat spectrum radio-emitting quasars with jet-like extended structure. X-rays are detected from 24 of the 39 jets observed ...
    • X-ray nuclear activity in S4G barred galaxies: no link between bar strength and co-occurrent supermassive black hole fueling 

      Cisternas, Mauricio; Gadotti, Dimitri A.; Knapen, Johan H.; Kim, Taehyun; Díaz-García, Simón; Laurikainen, Eija; Salo, Heikki; González-Martín, Omaira; Ho, Luis C.; Mizusawa, Trisha (2013-10-10)
      Stellar bars can lead to gas inflow toward the center of a galaxy and stimulate nuclear star formation. However, there is no compelling evidence on whether they also feed a central supermassive black hole: by measuring the ...
    • Zero Emissions Sulphur Recovery Production 

      Alqattan, Ahmad; Alshatti, Naser; Alajmi, Qahsan; Alajmi, Fahad
      A designed process for the concurrent production of hydrogen and Sulphur from a H2S containing gas stream (acid gas) with zero emissions. The method uses catalytic oxidative cracking, COC, of H2S to form H2 and S2. In ...
    • Zero-knowledge proofs for mix-nets of secret shares 

      Silaghi, Marius Cӑlin (2005-03-07)
      Mix-nets can be used to shuffle vectors of shared secrets. This operation can be an important building block for solving combinatorial problems where constraints are secret to different participants. A main contribution ...
    • ZnO nanorod-smectic liquid crystal composites: Role of ZnO particle size, shape, and concentration on liquid crystal order and current-voltage properties 

      Branch, J.; Thompson, Raymond G.; Taylor, Jefferson W.; Salamanca-Riba, Lourdes G.; Martínez-Miranda, Luz J. (2014-04-30)
      This paper investigates how changing the ZnO nanorod size and concentration in a smectic liquid crystal affect the order of the liquid crystal and the current-voltage (I-V) curves in these ZnO nanorods - octylcyanobiphenyl ...
    • δ Sct-type pulsations in eclipsing binary systems: Y Cam 

      Wood, Matt A.; Rodríguez, Eloy; García, Juan Mario; Costa, Víctor M.; Lampens, Patricia; Van Cauteren, Paul; Mkrtichian, David E.; Olson, Edward C.; Amado, Pedro J.; Daszyńska-Daszkiewicz, Jadwiga (2010)
      We present the results of a three-continent multisite photometric campaign carried out on the Algol-type eclipsing binary system Y Cam, in which the primary component is a multiperiodic δ Sct-type pulsator. The observations ...