RSS 1.0Physics and Astronomy Electronic Theses and Dissertations (UMKC)
The items in this collection are the theses and dissertations written by students of the Department of Physics and Astronomy. Some items may be viewed only by members of the University of Missouri System and/or University of Missouri-Kansas City. Click on one of the browse buttons above for a complete listing of the works.
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Recent Submissions
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A Study of EMI-TFSI Using Current Sensing Atomic Force Microscopy
(University of Missouri--Kansas City, 2018)A current sensing atomic force microscope was employed to find simultaneous force-distance and current-distance curves for the ionic liquid EMI TFSI on HOPG. These current curves, found at various voltage biases were ... -
Spatiotemporal Modeling and Analysis of Disease Spread in Wildlife
(University of Missouri--Kansas City, 2018)Wildlife and wildlife diseases have been frequent topics in mathematical epidemiology. However, due to the complexity of real-world systems and the varying degree of randomness in the behavior of any one individual organism, ... -
Positron interactions with oriented polymers and with chiral quartz crystals
(University of Missouri--Kansas City, 2017)Positron annihilation in various materials has been applied to characterize microstructure for decades. In this work, PALS was used to study material nanostructure, with a focus on the size and density of free volume ... -
First-Principles Calculation of Laser Crystal Multiplet Levels via Hybridized Density Functional Theory and Configuration Interaction within the OLCAO Method
(University of Missouri--Kansas City, 2017)Computation of highly-localized multiplet energy levels of transition metal dopants is essential to the design of materials such as laser host crystals. A purely first-principles density functional theory-configuration ... -
Determining Elemental Concentrations of Nickel-Doped Iron Samples through the Method of Laser Induced Breakdown Spectroscopy
(University of Missouri--Kansas City, 2017)Accurate information about the composition and concentration of the elements comprising a material is oftentimes of the utmost importance. Laser induced breakdown spectroscopy (LIBS) is a method for determining ... -
Silicon on Ferroelectric Insulator Field Effect Transistor (SOFFET): A Radical Alternative to Overcome the Thermionic Limit
(University of Missouri--Kansas City, 2016)The path of down-scaling traditional MOSFET is reaching its technological, economic and, most importantly, fundamental physical limits. Before the dead-end of the roadmap, it is imperative to conduct a broad research ... -
Ultra Low Power SubThreshold Device Design Using New Ion Implantation Profile
(University of Missouri--Kansas City, 2016)One of the important aspects of integrated circuit design is doping profile of a transistor along its length, width and depth. Devices for super-threshold circuit usually employ halo and retrograde doping profiles in ... -
Electronic Structure in the Organic-based Magnet [Feᴵᴵ(TCNE)(NCMe)₂][FeᴵᴵᴵCl₄] using the Orthogonalized Linear Combination of Atomic Orbitals Method with Hubbard U
(University of Missouri--Kansas City, 2017)The Hubbard U parameter is applied to the organic-based magnet [Feᴵᴵ(TCNE)(NCMe)₂][FeᴵᴵᴵCl₄] using the Orthogonalized Linear Combination of Atomic Orbitals (OCLAO) methods. The Local Spin Density Approximation (LSDA) ... -
Investigation of Interconnect and Device Designs for Emerging Post-MOSFET and Beyond Silicon Technologies
(University of Missouri--Kansas City, 2016)The integrated circuit industry has been pursuing Moore’s curve down to deep nanoscale dimensions that would lead to the anticipated delivery of 100 billion transistors on a 300 mm² die operating below 1V supply in the ... -
Application of Ab Initio Calculations and Molecular Dynamics to Collagen and Brome Mosaic Virus
(University of Missouri--Kansas City, 2016)Molecular Dynamics (MD) simulations are no more accurate than the underlying force field which represents the molecular interactions. In this thesis, we have calculated ab initio atomic partial charges for proteins of ... -
Observing the Sedimentation of TiO2 Nanoparticles in Aqueous Solution Using a Quartz Crystal Microbalance with Dissipation Monitoring
(University of Missouri--Kansas City, 2016)The development of a novel and less expensive approach to the quartz crystal microbalance with dissipation monitoring (QCM-D) is explored. Using a vector network analyzer (VNA) to measure harmonic ranges from the primary ... -
Growth of Semiconductor Thin Films by Pulsed Laser Deposition
(University of Missouri--Kansas City, 2016)Pulsed ultraviolet light from a XeF excimer laser was used to grow thin films of zinc oxide and tin dioxide on (111) p-type silicon wafers within a versatile high vacuum laser deposition system. This pulsed laser deposition ... -
A Hybrid Modeling Approach to Assess the Efficacy of Control Measures on Paratuberculosis on U.S. Dairy Farms
(University of Missouri--Kansas City, 2016)Paratuberculosis, also known as Johne's disease or JD, is a chronic contagious infection, caused by Mycobaterium avium paratuberculosis (MAP). This fatal disease is incurable and causes considerable economic losses to ... -
Modeling and Design of a Silicon-Based High-Pressure 3HE Replacement Neutron Detector
(University of Missouri–Kansas City, 2015)3He has stood as a major isotope used for neutron detection for many years. Due to national concerns of a possible 3He shortage, significant effort has been put forth, in the form of 3He alternative research, to push the ... -
Neutron Response Vectorization and Optimization of Moderating Neutron Spectrometers for Active Interrogation
(University of Missouri–Kansas City, 2015)The detection of special nuclear material (SNM) is no trivial task; the low activity of isotopes such as 235U and the ease of shielding make their passive detection virtually impossible in the maritime environment. Active ... -
Using WISE to Find Obscured AGN Activity in SDSS Mergers and Interactions
(University of Missouri–Kansas City, 2015)In simulations, major encounters between gas-rich galaxies are predicted to drive gas to the centers of interacting and merging systems triggering new star formation (SF) and fueling an active galactic nucleus (AGN). ... -
Searching for Interacting Early Type Galaxies at Late Cosmic Times
(2015)Major gas-poor (dry) merging between two comparably massive spheroidal galaxies are post u-lated to be the central mechanism responsible for the assembly of the most massive (M[subscript star,tot] ≥ 10¹¹ M[subscript ☉]) ... -
Structure and Mechanical Properties of Cement and Intermetallic Compounds via ab-initio Simulations
(2015)Calcium silicate hydrates comprise a class of minerals formed synthetically during Portland cement hydration or naturally through various geological processes. The importance of these minerals is immense since they are the ... -
Structure and Physical Properties of Hydrogrossular Mineral Series
(2015)The mineral hydrogrossular series (Ca₃Al₂(SiO4)₃₋ₓ(OH) ₄ₓ; 0 ≤ x ≤ 3) are important water bearing minerals found in the upper and lower part of the Earth’s mantle. They are vital to the planet’s hydrosphere under different ... -
Model Creation and Electronic Structure Calculation of Amorphous Hydrogenated Boron Carbide
(2015)Boron-rich solids are of great interest for many applications, particularly, amorphous hydrogenated boron carbide (a-BC:H) thin films are a leading candidate for numerous applications such as: heterostructure materials, ...