Browsing Department of Physics by Title
Now showing items 1-20 of 197
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A CHANDRA STUDY OF SUPERNOVA REMNANTS IN THE LARGE AND SMALL MAGELLANIC CLOUDS
(2017-05-04)In the first part of this thesis we measure the interstellar abundances for the elements O, Ne, Mg, Si, and Fe in the Large Magellanic Cloud (LMC), based on the observational data of sixteen supernova remnants (SNRs) in ... -
A comparative look at atomic oxygen and carbon dioxide neutral densities on Mars using data from the MAVEN satellite mission
(2020-05-14)This thesis uses the level 2 limb scan data from the IUVS instrument onboard the MAVEN satellite to investigate the density distributions of atomic oxygen and carbon dioxide in the lower thermosphere of Mars. In addition ... -
A Cross Section Measurement of Muon Neutrino-Induced Charged-Current Coherent Positive Pion Production on Argon with the MicroBooNE Detector
(2022-05-17)Neutrino-induced charged-current coherent pion production is an important channel for the study of neutrino-nucleus interactions. It is both a dangerous background for $\nu_{e}$ oscillation experiments, and a critical ... -
A Deep Chandra Study of Galactic Type Ia Supernova Remnant G299.2-2.9
(2017-12-07)In this thesis we perform a comprehensive analysis of Galactic Type Ia supernova remnant G299.2-2.9. For this study we analyze our deep 628 ks Chandra observation data of G299.2-2.9. G299.2-2.9 has a complex multiple ... -
A Density Functional Theory Guide To High Quality Modification Of Mixed Metal Oxides Used For Photocatalytic Water Splitting
(Physics, 2015)Phase stability and charge transport of pristine and transition metal alloyed bismuth titanate (Bi2Ti2O7, a.k.a. BTO), a photocatalytic water splitter, has been studied using the generalized gradient approximated density ... -
A DETAILED CHANDRA X-RAY STUDY OF THE GALACTIC CORE-COLLAPSE SUPERNOVA REMNANT G292.0+1.8
(2018-09-10)In this thesis, we describe our detailed analysis of the core-collapse supernova remnant (CCSNR) G292.0+1.8 (G292 hereafter) using data collected by NASA's Chandra X-ray Observatory (Chandra). In the first part of this ... -
A FIRST PRINCIPLES BASED APPROACH TO STABILIZE Cu2S FOR EFFICIENT SOLAR ABSORBER MATERIAL
(2019-05-14)Cu2S is an important low-cost, earth-abundant and non-toxic material which has shown its potential in the field of photovoltaics. Experimentally known band gaps of this material vary between 1.1-1.2 eV, which are suitable ... -
A Measurement of Electron-Neutrino Cross Section at MiniBooNE
1.1 Plan and aim of Dissertation. This dissertation aims to make a electron neutrino elastic scattering cross section measurement on carbon. The previous measurements of this cross section was performed by counting experiment, ... -
A structural prediction of copper sulfide and study of its electronic properties and vacancy forming trend using density functional theory
The focus of this research is on the material challenges in photovoltaic. Copper Sulfide (Cu2 S) has been regarded as a potential solar absorber materials in photovoltaic industry. Despite its simple composition, it is a ... -
A STUDY OF THE GEOSPACE RESPONSE TO DYNAMIC SOLAR WIND USING THE LYON-FEDDER-MOBARRY GLOBAL MHD SIMULATION
(2018-05-14)As the wind from the Sun advances towards Earth, it interacts with Earth’s magnetic field. This solar wind carries with it a magnetic field, called the interplanetary magnetic field (IMF). Energy and momentum are transferred ... -
AlfvÉnic Accelerated Electrons And Short Burst Auroral Kilometric Radiations Observed By The Fast Satellite
(Physics, 2007-09-17)This investigation is motivated by previous study of short burst radiations (S-bursts) reported by Ergun et al. [2006], who suggested two generation mechanisms of S-bursts: one is the electron cyclotron maser instability ... -
Analysis Of Calorimeter/itc Cosmic Ray Data From The Atlas Detector, And Preparation For Supersymmetry Searches
(Physics, 2009-09-16)The Large Hadron Collider is the largest most ambitious experiment in high energy physics history. It involves the greatest number of scientists from around the world. The first collisions will start being produced in late ... -
Analysis Of Equatorial F-region Vertical Neutral Winds From Brazil FPI Observations
Understanding the neutral dynamics of our upper atmosphere is an essential component of space weather prediction. In order to come up with better climatological models that describe upper atmospheric variations, an ... -
ANALYSIS OF WAVEFORM DISTORTIONS PRODUCED BY INTERFEROMETER RESPONSE FUNCTIONS FOR FUTURE SEARCHES OF GRAVITATIONAL-WAVE SIGNALS FROM CORE-COLLAPSE SUPERNOVAE
(2021-05-28)Multi-messenger astronomy recently added a fundamentally new component to its wide array of observational tools: a gravitational-wave detector. A number of binary black holes mergers have already been detected by ... -
Anisotropic nanostructured magnets by magnetic-field-assisted processing
(American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2010-04-15)It has been a great challenge to produce anisotropic nanocrystalline bulk magnets. In this paper, we report our recent work in preparing anisotropic bonded magnets consisting of SmCo5 nanocrystalline particles. The work ... -
Applications Of A Laser Microbeam In The Study Of Degeneration, Regeneration, And Guidance Of Primary CNS Axons
(Physics, 11-15-2012)This thesis explores the applications of a near infrared (NIR) laser microbeam as a tool for manipulating primary axons by initiating femtosecond pulsed-laser plasma-mediated ablation (laser axotomy) and optical guidance. ... -
Atomic Adsorptions On Actinide Surfaces: Pathways To Nuclear Energy
(Physics, 2013-03-20)The generalized gradient approximation (GGA) to density functional theory (DFT) and hybrid density functional theory have been used to compute the layer-by-layer properties of γ-uranium (γ-U) in the (100) symmetry. Guided ... -
Atomic And Molecular Adsorptions Of Hydrogen And Oxygen On Silicon Nanotubes: An Ab Initio Study
(Physics, 2013-07-22)A systematic ab initio study of silicon nanotubes (SiNTs) in single-walled, double-walled armchair and zigzag configurations will be presented. Electronic and structural properties of all these nanostructures have been ... -
Bimagnetic nanoparticles with enhanced exchange coupling and energy products
(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
(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 ...