Now showing items 19-38 of 197

    • Bimagnetic nanoparticles with enhanced exchange coupling and energy products 

      Nandwana, Vikas; Chaubey, Girija Shankar; Yano, Kazuaki; Rong, Chuan-Bing; Liu, J. Ping (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2009-01-06)
      Bimagnetic FePt/Fe3O4 nanoparticles with core/shell or heterodimer structure have been prepared using a sequential synthetic method. The dimension of both FePt and Fe3O4 was tuned by varying the synthesis parameters. The ...
    • Bimetallic-waveguide coupled sensors for tunable plasmonic devices 

      Tiwari, Kunal K.; 0000-0002-3481-223X (2015-12-01)
      Surface plasmon resonance (SPR) has been a widely used optical technique for the real time and label free sensing applications in biomedicine, homeland security, food safety, environmental monitoring, etc. Surface plasmons ...
    • Biological Damage Of UV Radiation In Environments Of F-type Stars 

      Sato, Satoko (Physics, 2014-07-14)
      I investigate the general astrobiological significance of F-type main-sequence stars with special consideration to stellar evolutionary aspects due to nuclear evolution. DNA is taken as a proxy for carbon-based macromolecules ...
    • Blocker-based Scatter Correction For Cone-beam Computed Tomography 

      Zhao, Cong
      Cone-beam computed tomography (CBCT) imaging is widely used in radiation therapy for treatment planning and image-guided therapy. More x-ray scatter signals are detected by the two-dimensional detector arrays in CBCT than ...
    • Boundaries and Currents of the Dayside Magnetosphere: MHD Simulations and Observations 

      Dredger, Pauline Marie; 0000-0003-1029-9168 (2023-05-22)
      The solar wind streams through space at supersonic speeds, carrying plasma and the interplanetary magnetic field (IMF) from the sun. Earth’s magnetosphere presents a magnetosonic obstacle to the solar wind flow, which slows ...
    • Bulk FePt-based nanocomposite magnets with enhanced exchange coupling 

      Rong, Chuan-Bing; Nandwana, Vikas; Poudyal, Narayan; Liu, J. Ping; Kozlov, Mikhail E.; Baughman, Ray H.; Ding, Yong; Wang, Zhong Lin (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2007-07-23)
      High density bulk FePt/Fe3Pt nanocomposite magnets have been prepared by high-pressure warm compaction of chemically synthesized FePt and Fe3O4 nanoparticles. It is found that the density increases with the compaction ...
    • Bulk FePt-based nanocomposite magnets with enhanced exchange coupling 

      Nandwana, Vikas; Liu, J. Ping; Poudyal, Narayan; Rong, Chuan-Bing; Kozlov, Mikhail E.; Baughman, Ray H.; Ding, Yong; Wang, Zhong Lin (AIP, 2007)
      High density bulk FePt/Fe3Pt nanocomposite magnets have been prepared by high-pressure warm compaction of chemically synthesized FePt and Fe3O4 nanoparticles. It is found that the density increases with the compaction ...
    • Bulk FePt/Fe3Pt nanocomposite magnets prepared by spark plasma sintering 

      Rong, Chuan-Bing; Nandwana, Vikas; Poudyal, Narayan; Liu, J. Ping; Saito, Tetsuji; Wu, Yaqiao; Kramer, Matthew J. (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2007-04-27)
      FePt/Fe3Pt bulk nanocomposite magnets have been prepared by the spark plasma sintering of chemically synthesized FePt and Fe3O4 nanoparticles under 100 MPa at 400–600 °C. It was found that the phase transition of the FePt ...
    • Bulk FePt/Fe3Pt nanocomposite magnets prepared by spark plasma sintering 

      Nandwana, Vikas; Rong, Chuan-Bing; Poudyal, Narayan; Liu, J. Ping; Saito, Tetsuji; Wu, Yaqiao; Kramer, Matthew J. (AIP, 2007)
      FePt/Fe3Pt bulk nanocomposite magnets have been prepared by the spark plasma sintering of chemically synthesized FePt and Fe3O4 nanoparticles under 100 MPa at 400–600 °C. It was found that the phase transition of the FePt ...
    • Calibration Of The Atlas Intermediate Tile Calorimeter 

      Brown, Heather Brianna (Physics, 2011-07-14)
      The Large Hadron Collider (LHC) at CERN near Geneva, Switzerland is the world's largest particle collider. UTA contributes to the ATLAS detector at the LHC. There are many detection systems within ATLAS, and the hadronic ...
    • Can Silicon Carbide Nanotubes Be Effective Storage Medium For Hydrogen Storage? 

      Mukherjee, Souptik (Physics, 2009-09-16)
      A systematic study of molecular hydrogen adsorption on three different atomic configurations of armchair SICNTs has been performed. In the first stage of our study, first principles calculations using both density functional ...
    • CARDIAC SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY (SPECT) SIMULATION USING THE XCAT PHANTOM AND THE SIMIND PACKAGE 

      Adebayo, Akolade (2022-08-17)
      Clinical data indicates a prevalence of transmural perfusion defects in the apical, mid, and basal segment of the left ventricle (LV) wall in patients with coronary artery diseases (CAD). To administer therapeutic regimes ...
    • Case Studies Of The Circular Restricted Three Body Problem 

      Eberle, William Jason (Physics, 2007-08-23)
      In this thesis, the onset of instability for a planet which is part of a stellar binary system is investigated by running numerical simulations of the circular restricted three body problem. This study also makes use of a ...
    • Catalogue of Computed Pseudo-Redshifts from BATSE GRB Data 

      Proni, Rebecca M (2020-06-08)
      We present a catalog of the redshift estimates and probability distributions for 565 individual Short-duration Gamma-Ray Bursts (SGRBs) detected by the Burst And Transient Source Experiment (BATSE). This result is based ...
    • CHANDRA EJECTA KINEMATICS STUDIES AND AN ISO SPECTROSCOPIC SURVEY OF SUPERNOVA REMNANTS 

      Millard, Matthew James; 0000-0001-7106-8502 (2022-08-15)
      The structure of metal-rich ejecta created from a supernova (SN) reveals vital information about the explosion of the progenitor star and the dynamical evolution of the supernova remnant (SNR). This research focuses on the ...
    • CHARGE TRANSFER AND BUILT-IN FIELDS AT A SEMICONDUCTOR-CRYSTALLINE OXIDE INTERFACE: EFFECTS OF THE INTERFACE DIPOLE AND SURFACE TERMINATION 

      Chrysler, Matthew Dennis (2022-08-17)
      Charge transfer and built-in fields across semiconductor heterojunctions underpin the functionality of virtually all device technologies. In this regard, interfaces between insulating oxides and semiconductors have been ...
    • CHIRALITY IN QUANTUM FIELD THEORY AND ITS ROLE IN THE STANDARD MODEL AND BEYOND 

      Watson, Timothy Blake; 0000-0002-8631-2253 (2022-08-12)
      Chirality as a symmetry of particle physics occupies a unique role in the standard model. It arises from general space-time principles yet remains central to the formulation of local gauge theories. This work explores the ...
    • Conditions For Wave Propagation Along Solar Magnetic Flux Tubes 

      Routh, Swati (Physics, 2007-08-23)
      There is an intimate relation between all aspects of the solar activity and the presence of solar magnetic fields. Observations showed that the magnetic field at the photospheric level consists of magnetic flux tubes, which ...
    • CORE-COLLAPSE SUPERNOVAE AND THEIR REMNANTS: CHANDRA STUDY OF SN 1987A AND A MULTI-WAVELENGTH FOLLOW-UP OF SN 2021KRF 

      Pazhayath Ravi, Aravind; 0000-0002-7352-7845 (2023-08-08)
      **Please note that the full text is embargoed until 8/1/2024** ABSTRACT: Understanding how exploding stars impact their surroundings is of fundamental importance to all areas of astrophysics. Young supernovae (SNe) and ...
    • Curie temperatures of annealed FePt nanoparticle systems 

      Rong, Chuan-Bing; Li, Yang; Liu, J. Ping (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2007-03-28)
      The chemically synthesized FexPt100-x nanoparticles with controlled compositions were annealed to transfer the disordered face-centered-cubic structure to the ordered structure. It was found that the L10 FePt structure can ...