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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Introduction and application of GEANT4: A comparison of depth-dose
(2019)Geometry ANd Tracking 4 (GEANT4) is an object-oriented C++ based program that uses Monte Carlo methods to simulate the passage of particles through matter. A powerful application, GEANT4, allows the user to define variables ... -
Sequential test allocation for estimating software reliability with associated cost
We use a sequential method to allocate software test cases among partitions of a software to minimize the expected loss incurred by the Bayes estimator of the overall software reliability. The Bayesian approach allows us ... -
Characteristic Mode Analysis of Crumpled Graphene Flakes and A New Green’s Functions Evaluation Method for Layered Media
(University of Missouri -- Kansas City, 2019)Graphene flakes (GFs) in real composites are rarely perfectly flat, and often exhibit complicated crumpled shapes. Therefore, the goal of this work was to quantify the electromagnetic scattering characteristics of individual ... -
Laser-Induced Breakdown Spectroscopy of Micron Sized Particles with the Consideration of Industrial Applications
(University of Missouri -- Kansas City, 2019)Laser-induced breakdown spectroscopy (LIBS) is a technology for performing spectral analysis of materials with little sample preparation, rapid measurement times, and minimal damage to the sample. Micro-LIBS is a form ... -
Design of Instrumentation and Methodologies for Determination of Free Neutron Characteristics
(University of Missouri -- Kansas City, 2017)Measuring neutron source‐dependent free neutron properties over a large neutron energy range, with human‐portable instrumentation, continues to push the frontier of neutron detection instrumentation design and analysis ... -
Deciphering of packing signal hypothesis in bacterophage RNA recognition by the MS2 capsid protein in virus assembly
(University of Missouri -- Kansas City, 2018)MS2 is a classical example of a single-stranded RNA virus for which the genomic RNA plays pivotal roles in the virus assembly process. Multiple dispersed RNA se quence/structure motifs, packaging signals (PSs) varying ... -
Addressing On-Chip Power Conversion and Dissipation Issues in Many-Core System-on-a-Chip based on Conventional Silicon and Emerging Nanotechnologies
(University of Missouri -- Kansas City, 2017)Integrated circuits (ICs) are moving towards system-on-a-chip (SOC) designs. SOC allows various small and large electronic systems to be implemented in a single chip. This approach enables the miniaturization of design ... -
Modeling HIV-1 Infection and Immune Responses Under Drugs of Abuse
(University of Missouri -- Kansas City, 2018)The frequent use of drugs of abuse among HIV infected individuals is a major concern. Drugs of abuse, such as opiates, have been widely associated with enhanc ing HIV replication, accelerating disease progression, and ... -
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 ...