Browsing by Thesis Department "Physics (UMKC)"
Now showing items 21-40 of 94
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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 ... -
The complex refractive index of water
(University of Missouri--Kansas City, 1981)A spectrum of the imaginary part of the complex index of refraction for water as a function of wave number was compiled from the literature and theoretical considerations. The spectrum ranged from 10⁻⁶ through 10⁸ cm⁻¹. ... -
Computational Modeling of a-SiO₂ Nanoparticles and their Electronic Structure Calculation
(2015-08-12)The spherical amorphous silica (a-SiO₂) nanoparticles (NPs) are constructed from a previous continuous random network (CRN) model of a-SiO₂ with the periodic boundary. The models of radii 12 Å, 15 Å, 18 Å, 20 Å, 22 Å, ... -
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 ... -
Constructing massive blue elliptical galaxies in the local universe
(2013)Over cosmic time, galaxy mass assembly has transitioned from low-mass, starforming disk galaxies to massive, quiescent elliptical galaxies. The merger hypothesis for the formation of new elliptical galaxies provides one ... -
Correlates of gender and achievement in introductory algebra based physics
(2013)The field of physics is heavily male dominated in America. Thus, half of the population of our country is underrepresented and underserved. The identification of factors that contribute to gender disparity in physics is ... -
Current sensing atomic force microscopy study of aging mechanism of the nafion membranes due to thermal annealing
(University of Missouri--Kansas City, 2011-09-14)Proton transport properties of Nafion 212 and Nafion 115 membranes have been studied using current sensing atomic force microscopy to reveal changes of the ionic domains and the local ionic conductivity distribution in ... -
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 ... -
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 ... -
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 ... -
Effect of electric fields on the synthesis of nanoparticles of tin and silicon in a liquid environment
(2015-07-28)The effect of externally applied electric fields on the size and morphology of nanoparticles fabricated by laser ablation was investigated. In this method, a pulsed laser beam was focused onto a solid target of either ... -
The Effect of Thermal Annealing on Phase Separation in Organic Photovoltaic Films
(2015)In our research, we used amplitude modulated atomic force microscopy to study the effect of thermal annealing on the morphology of four recently developed bulk heterojunction photovoltaic films. Each cell was fabricated ... -
Effects of pressure and temperature on the yield strength of tantalum and rhenium
(2013)The effects of pressure and temperature on the yield strength of tantalum and the effects of pressure on the yield strength of rhenium were investigated using ruby fluorescence. A new Raman system with a motorized stage ... -
Electrical Carrier Mobility Measurements of Amorphous Hydrogenated Boron Carbide Using Space-Charge-Limited Current Techniques
(2015-08-11)Within the field of neutron detection, there has been a push to develop solid-state direct-conversion devices. Amorphous hydrogenated boron carbide (a-BxC:Hy) is of particular interest for this purpose because it has a ... -
Electronic structure and optical properties of layered ternary transition-metal carbides and nitrides
(University of Missouri--Kansas City, 2011-05-20)The electronic structure and optical properties of Ti3AC2 (A=Al, Si, Ge), Ti2AC (A=Al, Ga, In; Si, Ge, Sn; P, As; S), Ti2AlN, M2AlC (M=V, Nb, Cr) and Tan+1AlCn (n=1~4) have been studied using first-principles orthogonalized ... -
Electronic structure and partial charge distribution of doxorubicin under different molecular environments
(2014)Doxorubicin (trade name Adriamycin, abbreviated DOX) is a well-known anthracyclic chemotherapeutic used in treating a variety of cancers including acute leukemia, lymphoma, multiple myeloma, and a range of stomach, lung, ... -
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) ... -
Electronic Structure of Three Center Two Electron Bonds in Boron Rich Materials: A Study of Molecules, Crystals, and Amorphous Solids using the ab initio Orthogonalized Linear Combination of Atomic Orbitals Method
(2020)It has been shown that isomers of carborane, α and β rhombohedral boron, α and β tetragonal boron, γ boron, and boron carbide tend to form icosahedral structures. If the icosahedra were formed with pure boron, it has been ... -
Electronic Stucture of Elemental Boron
(University of Missouri--Kansas City, 2010-12-15)Boron has complex structures in its crystalline forms that lead to a variety of properties. The primary phases of elemental boron are α-B12, t-B50, γ-B28, and β-B106 and are the focus of this thesis. As a preliminary ... -
Electronic, Optical, Structural, and Elastic Properties of MAX Phases and (Cr2Hf)2Al3C3
(2014-09-30)The term “MAX phase” refers to a very interesting and important class of layered ternary transition-metal carbides and nitrides with a novel combination of both metal- and ceramic-like properties that have made these ...