Now showing items 924-943 of 2876

    • Four short-period algols 

      Rafert, James Bruce (1990-10)
      We have analyzed the light curves of four close binary star systems (BV 267, RU UMi, XZ CMi, and VV UMa) using the Wilson-Devinney differential corrections model. The present system geometries of these binaries is that of ...
    • Fragile binary candidates in the SDSS DR8 spectroscopic archive 

      Zhao, J.K; Oswalt, Terry D.; Zhao, G. (2012-02)
      We present a catalog of 80 very wide fragile binary candidates (projected separations >10,000 AU) from the Sloan Digital Sky Survey Data Release Eight spectral archive. The pairs were selected based on proper motion, radial ...
    • Fragile binary candidates in the SDSS DR8 spectroscopic archive 

      Zhao, Jingkun; Oswalt, T. D.; Zhao, Gang (2011-12-15)
      We present a catalog of 80 very wide fragile binary candidates (projected separations >10,000 AU) from the Sloan Digital Sky Survey Data Release Eight spectral archive. The pairs were selected based on proper motion, radial ...
    • A Framework for Characterizing the Security Posture of Cyber Systems 

      Ridley, Matthew (2018-12)
      Modern day applications can be spread across multiple virtual or physical systems, and be accessed or attacked by pretty much any one any where. Cybersecurity is used to mitigate these cyber threats but there are limited ...
    • A framework for multilingual information processing 

      Atkin, Steven Edward (2002-02-18)
      Recent and (continuing) rapid increases in computing power now enable more of humankind's written communication to be represented as digital data. The most recent and obvious changes in multilingual information processing ...
    • Framework for Open-Source Software Update Mechanism: Resistance to Stacking the Deck Attack 

      Alhamed, Khalid (2015-05)
      Currently many users trust open-source binaries downloaded from repositories such as sourceforge.net,github.com, and gitorious.org. As with any system connected to the Internet, such repositories can be subject to attacks ...
    • Free Response and Trim Force Requirements for Aircraft Configuration Changes 

      Toepfer, Marvin (2018-12)
      As an FAA Commercial Pilot and Flight Instructor, one comes in contact with many different types of experiences and abnormal situations. A widely known cause of fatal accidents in the general aviation industry, and also ...
    • Free-space optical communication link using spatial optical encryption 

      Murshid, Syed H.; Howard, William B.; Chakravarty, Abhijit (2011-05-04)
      Free-space optical links are ideal for short-range (1 km to 3 km) communications. An innovative new technique called Spatial Optical Encryption can be used to secure laser data communications. With this technique, data can ...
    • FREQUENCY DISTRIBUTION PATTERNS AND PARTITIONING OF COPPER, IRON AND ZINC IN SELECTED TISSUES OF THE BLACK MULLET (MUGIL CEPHALUS) 

      Venuto, Charles J.; Trefry, John H. (1983)
      Copper, iron and zinc concentrations were determined for muscle, gill and liver tissue from 45 black mullet (Mugil cephalus) collected in Turkey Creek, an embayment of the Indian River Lagoon, Florida. In the liver, Fe ...
    • Frequency-selective surface coupled metal-oxide-metal diodes 

      Kinzel, Edward C.; Brown, Robert Laurent; Ginn, James Chris; Lail, Brian A.; Slovick, Brian A.; Boreman, Glenn D. (2013-06-11)
      Metal-Oxide-Metal diodes offer the possibility of directly rectifying infrared radiation. To be effective for sensing or energy harvesting they must be coupled to an antenna which produces intense fields at the diode. While ...
    • Frisbee at Jensen Beach Campus 

      Griffin, Jim; Hutchins, John
    • Function approximation using a sinc neural network 

      Elwasif, Wael R.; Fausett, Laurene V (1996-03-22)
      Neural networks for function approximation are the basis of many applications. Such networks often use a sigmoidal activation function (e.g. tanh) or a radial basis function (e.g. gaussian). Networks have also been developed ...
    • The functional extinction of Andean megafauna 

      Rozas-Dávila, Angela; Valencia, Bryan G.; Bush, Mark B. (2016-09-19)
      Controversy exists over the cause and timing of the extinction of the Pleistocene megafauna. In the tropical Andes, deglaciation and associated rapid climate change began ∼8,000 years before human arrival, providing an ...
    • The functional extinction of Andean megafauna 

      Rozas-Dávila, Angela; Valencia, Bryan G.; Bush, Mark B. (2016-09-19)
      Controversy exists over the cause and timing of the extinction of the Pleistocene megafauna. In the tropical Andes, deglaciation and associated rapid climate change began ∼8,000 years before human arrival, providing an ...
    • A Furi-Pera theorem in Hausdorff topological spaces for acyclic maps 

      Agarwal, Ravi P.; O'Regan, Donal; Dshalalow, Jewgeni H. (2004)
      We present new Furi-Pera theorems for acyclic maps between topological spaces.
    • A Further Analysis of Commission Errors during Discrete Trial Training 

      Matthews, Tavy Alisa (2016-12)
      Treatment integrity has been manipulated in various ways to evaluate its impact on intervention effectiveness. Studies have compared different types of integrity failures and levels of treatment integrity in various ...
    • Further evidence for variable synchrotron emission in XTE J1118+480 in outburst 

      Hynes, Robert I.; Robinson, Edward L.; Pearson, Kevin J.; Gelino, Dawn M.; Cui, Wei; Xue, Yongquan; Wood, Matt A.; Watson, Todd K.; Winget, Don Earl; Silver, Isaac M. (2006-11-01)
      We present simultaneous multicolor infrared and optical photometry of the black hole X-ray transient XTE Jill 8+480 during its short 2005 January outburst, supported by simultaneous X-ray observations. The variability is ...
    • FUSE observations of intermediate temperature DA: Atmospheric parameters and metal abundances 

      Dupuis, Jean François; Hénault-Brunet, Vincent; Chayer, Pierre; Vennes, Stéphane; Kruk, Jeffrey W. (2009)
      We present results from our analysis of a sample of DA white dwarfs having effective temperature below 25,000 K observed with the FUSE satellite with the goals of better understanding the origin of metals detected in the ...
    • FUSE Spectroscopy of the Accreting Hot Components in Symbiotic Variables 

      Sion, E.M.; Godon, Patrick; Mikołajewska, Joanna; Sabra, Bassem M.; Kolobow, Craig (2017-04-04)
      We have conducted a spectroscopic analysis of the far-ultraviolet archival spectra of four symbiotic variables, EG And, AE Ara, CQ Dra, and RW Hya. RW Hya and EG And have never had a recorded outburst, while CQ Dra and AE ...
    • Galactic cosmic-ray modulation in a realistic global magnetohydrodynamic heliosphere 

      Luo, Xi; Zhang, Ming; Rassoul, Hamid K.; Pogorelov, Nikolai V.; Heerikhuisen, Jacob (2013-02-10)
      To understand the behavior of cosmic-ray modulation seen by the two Voyager spacecraft in the region near the termination shock (TS) and in the heliosheath at a distance of >100 AU, a realistic magnetohydrodynamic global ...