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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Sampling Schemes For Estimating Software Reliability
(2022)Any software system of non-trivial size cannot be easily and completely tested because the domain of all possible inputs is complex and very large. In this study, we use a technique called partition testing, in which we ... -
Comparative Investigation of LIBS Spectra and Crater Morphology During Laser Ablation of Eutectic BiSn Alloys
(2022)Laser-based methods such as pulsed laser deposition (PLD) that are used for fabricating structural and functional materials are ripe for dramatic improvement. However, because laser–material interactions are dependent on ... -
A Cubic Spline Projection Method for Computing Stationary Density Functions of Frobenius-Perron Operator
(2022)Stationary density functions of Frobenius-Perron operators have critical applications in many fields of science and engineering. Accordingly, approximating stationary density functions f* is important and the focus of this ... -
Chemical and biochemical applications of vibrational spectroscopy
(2022)Vibrational spectroscopy is a technique that probes a molecule’s vibrational modes via infrared absorption and Raman scattering, and is often used as a tool for characterization and/or functional group determination. Because ... -
Far-UV to Mid-IR Spectral Energy Distributions of Nearby Merging Galaxies
(2022)Simulations of gas-rich, major galaxy mergers predict elevated amounts of star formation (SF) and nuclear black hole growth (active galactic nuclei, or AGN). This model is supported by observations that find enhanced SF ... -
An Analysis of the Stellar Mass Properties of Distant Galaxy Clusters From the Massive and Distant Clusters of WISE Survey (MaDCoWS)
(2022)The epoch at redshift z ∼ 1 and above is an important one for the study of the evolution of galaxy clusters, as this is the epoch where star formation in clus- ter cores in quenched. Most wide-area cluster surveys at this ... -
Exploration of the Application of Machine Learning to the Improvement of Interatomic Potentials
(2022)Current methods for atomistic simulations of material systems suffer from limitations which restrict the ability of the simulations to correctly characterize certain material behavior and physical phenomena. Small scale ... -
Resilience, Risk and Protective Factors among Nigerian Youth
(2022)Poverty or low socioeconomic status has been known to negatively impact the educational achievement of children across the world. However, some children have managed to succeed despite the daily challenges they face because ... -
A modeling framework for spatial transmission of Covid-19 in local communities
(2022)COVID-19 is the recent infectious disease caused by the severe acute respiratory syndrome novel coronavirus (SARS-CoV-2). Because the transmissibility of the virus is relatively high and the outbreaks remained undetected ... -
A study of carbon and iron charged point defects in gallium nitride: electronic structure implications for high-power photoconductive solid state switch applications
(2021)There is growing demand for high-performance electronics in high volt- age, high current, and high frequency efficiency requirements that current materials (e.g., Si) are not fulfilling. Within the last few years, the ... -
RF coupling to realistic wire systems in complex environments
(2021)With the continuous emergence of new wireless technologies, the possibility of unintentional electromagnetic interference (EMI) increases significantly. EMI coupling pathways to any Device Under Test (DUT) can be classified ... -
Hydrolysis and aqueous corrosion of silicate and aluminosilicate glasses via ab initio molecular dynamics simulation
(2021)Hydrolysis and aqueous corrosion of glass is a complex and puzzling phenomenon. Although many endeavors have been made to investigate corrosion in glass, it is still an open question with many unanswered fundamental issues. ... -
A Computational Study of The Electrical Response of Biological Cells with Realistic Three-Dimensional Morphologies
(2021)One of the unique features of a biological cell is the cell membrane that protects the cell interior by establishing a physical barrier between the cytoplasm and the extracellular matrix and governs the distribution of the ... -
Moving Mesh Finite Element Method for Time Dependent Convection-Diffusion Problems
(2021)The moving mesh finite element method (MM-FEM) has been a significant force in numerically approximating solutions to differential equations that otherwise exhibit spurious, artificial oscillations. This is especially true ... -
Novel Electromagnetic Scattering Models for Nano-Composites and Nano-Sensor Applications
(2021)Nanoparticles composed of plasmonic materials have the unique capability of coupling to electromagnetic radiation of wavelengths far larger than their size and confining the coupled energy to the structure’s sub-wavelength ... -
First Principles Method for Complex Cement Structure and High Entropy Alloys
(2021)The ultimate objective of this dissertation contains two different areas of materials – secondary of Portland cement structure and high entropy alloys (HEAs). Similar concept of the computational method was applied to ... -
Constraining the Major Merging History of Massive Galaxies: A Comprehensive Analysis of Close Pairs and Tidal Features Using Empirical and Simulated Data
(2021)Major galaxy merging is a fundamental aspect of the hierarchical structure-growth scenario of the universe, and it is theoretical expected to contribute to several key aspects of galaxy evolution. As such, empirically ... -
The Role of Surfaces and Structural Disorder on the Core Level Chemical Shift in Perovskite Solar Cells
(2021)The local electronic environment of atoms near interfaces in thin-film solar cells plays a crucial role in the overall performance. Core electron chemical shifts are sensitive indicators of variation in the local environment ... -
3D modeling and integration of current and future interconnect technologies
(2021)To ensure maximum circuit reliability it is very important to estimate the circuit performance and signal integrity in the circuit design phase. A full phase simulation for performance estimation of a large-scale circuit ... -
Amorphous hydrogenated boron carbide for solid-state direct-conversion thermal neutron detection
(2021)Amorphous hydrogenated boron carbide (a-BC:H) is one of a very limited number of neutron-sensitive materials. It has been studied over the last three decades for solid-state thermal neutron detection due to its high ...