Search results | J. Murrey Atkins Library

Title: A Detailed Description of Keldysh's Model of Photoionization
Author: Darden, Kenan
Date Created: 2023
Subjects--Topical: Physics, Optics, Quantum theory
Description: Leonid Keldysh’s 1965 paper "Ionization in the Field of a Strong Electromagnetic Wave" contains useful and simple-to-implement equations predicting the rate of photoionization in both atomic gasses and general crystalline solids. Crucially, his re...

Title: A NUMERICAL STUDY OF INTERFACIAL INSTABILITIES IN SHOCKED MATERIALS WITH SURFACE TENSION
Author: Bigdelou, Pedram
Date Created: 2020
Subjects--Topical: Fluid mechanics, Physics
Description: Shock-driven multi-material flows occur in several applications including shock wave lithotripsy, underwater explosions, droplet combustion, propeller cavitation and ejection of material from surfaces subject to blast loading. Such flows are highl...

Title: A SINGLE-PIXEL HYPERSPECTRAL IMAGING SYSTEM FOR CANCER MARGIN DETECTION
Author: Peller, Joseph
Date Created: 2018
Subjects--Topical: Optics, Physics
Description: We have developed a hyperspectral imaging (HSI) system based on a single pixel camera design to detect differences in tissue properties based on the optical reflectance and autofluorescence spectra of the tissue. The long-term goal of this project...

Title: A path dependent quantum approximate optimization algorithm optimized by pairwise correlation of angles
Author: Daniel, Christopher
Date Created: 2021
Subjects--Topical: Physics
Description: Given the current promise of quantum computing to increase the efficiency of optimization algorithms, it is important to utilize these quantum algorithms for useful applications. The quantum approximate optimization algorithm was recently develope...

Title: ACCURATE AND EFFICIENT CALCULATION OF SINGULAR ELECTROSTATIC POTENTIALS IN CHARGE-DIELECTRIC SPHERICAL AND JANUS PARTICLE SYSTEMS
Author: Retz, Caylah
Date Created: 2018
Subjects--Topical: Molecular biology, Mathematics, Physics
Description: We introduce an efficient and accurate boundary element method for computing the electrostatic potential in closely-packed dielectric spheres and Janus particles. Close physical proximity occurs in modeling molecular ion interactions or colloidal ...

Title: An Evaluation of Teaching Methods in the Introductory Physics Classroom
Author: Savage, Lauren
Date Created: 2015
Subjects--Topical: Education, Physics, Educational evaluation
Description: The introductory physics mechanics course at the University of North Carolina at Charlotte has a history of relatively high DFW rates. In 2011, the course was redesigned from the traditional lecture format to the inverted classroom format (flipped...

Title: Analysis of a Low Enriched Uranium Centrifugal Gas Core Reactor
Author: Leer, Darrin
Date Created: 2020
Subjects--Topical: Fluid mechanics, Physics, Radiation, Nuclear physics
Description: With the new NASA directive of returning to the Moon in 2024 as a stepping stone to missions to Mars and beyond, there is a renewed interest in developing nuclear thermal rockets (NTR) to reduce trip times. This thesis will focus on the analysis o...

Title: Blinking Correlation in Nanocrystal Quantum Dots Probed with Novel Laser Scanning Confocal Microscopy Methods
Author: Hefti, Ryan
Date Created: 2013
Subjects--Topical: Nanoscience, Physics
Description: Semiconductor quantum dots have a vast array of applications: as fluorescent labels in biological systems, as physical or chemical sensors, as components in photovoltaic technology, and in display devices. An attribute of nearly every quantum dot ...

Title: Bohmian Trajectories of Interacting Particles Trapped in a Two-dimensional Harmonic Well
Author: Keithly, Gregory
Date Created: 2021
Subjects--Topical: Physics
Description: Bohmian mechanics is an alternate formalism of quantum mechanics that posits a particle is always existent, and furthermore there is a separate entity describing a wave-like disturbance in space and time, governed by the Schrodinger equation, that...

Title: CHARACTERIZATION OF LIGHT-META STRUCTURE INTERACTIONS
Author: Chandra, Nitish
Date Created: 2018
Subjects--Topical: Optics, Physics
Description: The advent of metamaterials has increased the complexity of possible light-matter interactions, creating gaps in knowledge and violating various commonly used approximations and rendering some common mathematical frameworks incomplete. Our forward...

Title: Characterization of Individual Straight and Kinked Boron Carbide Nanowires
Author: Cui, Zhiguang
Date Created: 2016
Subjects--Topical: Materials science, Nanoscience, Physics
Description: Boron carbides represent a class of ceramic materials with p-type semiconductor natures, complex structures and a wide homogeneous range of carbon compositions. Bulk boron carbides have long been projected as promising high temperature thermoelect...

Title: Computational investigations on the aerodynamics of a generic car model in proximity to a side wall
Author: Mallapragada, Srivatsa
Date Created: 2017
Subjects--Topical: Mechanical engineering, Fluid mechanics, Physics
Description: A moving road vehicle is subjected to many fluid interferences caused by a number of external agents apart from the vehicle itself. Vehicles moving in proximity to a side wall is an interesting aspect that has been little investigated in the liter...

Title: Controlled coherence plasmonic light sources
Author: Gbur, Greg, Smith, Matt
Date Created: 2021
Subjects--Topical: Physics, Optics
Description: Through a computational model, we study the coherence converting capabilities of an array of holes in a surface plasmon-supporting metal plate, with an eye towards the creation of controlled coherence plasmonic light sources. We evaluate how the a...

Title: Cycle of phase, coherence and polarization singularities in Young's three-pinhole experiment
Author: Gbur, Greg, Pang, Xiaoyan, Visser, Taco D.
Date Created: 2015
Subjects--Topical: Physics, Optics
Description: It is now well-established that a variety of singularities can be characterized and observed in optical wavefields. It is also known that these phase singularities, polarization singularities and coherence singularities are physically related, but...

Title: DESIGN, TOLERANCING, AND EXPERIMENTAL CHARACTERIZATION OF DYNAMIC FREEFORM OPTICAL SYSTEMS
Author: Shultz, Jason
Date Created: 2017
Subjects--Topical: Optics, Engineering, Physics
Description: Although freeform concepts have been considered for many decades, new fabrication capabilities have enabled new classes of optical components and sparked greatly increased interest in freeform optics. Generally defined as surfaces without rotation...

Title: Discrete Element Simulations of Powder Spreading in Additive Manufacturing
Author: Amrapurkar, Parth
Date Created: 2020
Subjects--Topical: Mechanical engineering, Engineering, Physics
Description: Powder spreading plays a critical role in the quality of parts produced with selective laser sintering (SLS). Some of the important parameters that influence the quality of the powder bed are the powder particle size and distribution, blade speed,...

Title: Dynamic aerosol and dynamic air-water interface curvature effects on a 2-Gbit/s free-space optical link using orbital-angular-momentum multiplexing
Author: Gbur, Greg, Song, Haoqian, Zhang, Runzhou, Hu, Nanzhe
Date Created: 2022
Subjects--Topical: Physics, Optics
Description: When an orbital-angular-momentum (OAM) beam propagates through the dynamic air-water interface, the aerosol above the water and the water surface curvature could induce various degradations (e.g., wavefront distortion, beam wandering, scattering, ...

Title: ELUCIDATING FUNCTIONAL MECHANISMS IN PROTEINS USING THE DISTANCE CONSTRAINT MODEL
Author: Singer, Christopher
Date Created: 2019
Subjects--Topical: Bioinformatics, Biophysics, Physics
Description: Protein thermodynamics has been shown to be insightful and illuminating to the functional mechanisms behind biological function. By characterizing proteins and protein families according to their enthalpy and entropy we can make inferences to the ...

Title: ENHANCED THERMALLY MANAGED PACKAGING OF III-NITRIDE LIGHT EMITTERS
Author: Kudsieh, Nicolas
Date Created: 2014
Subjects--Topical: Physics
Description: In this Dissertation our work on `enhanced thermally managed packaging of high power semiconductor light sources for solid state lighting (SSL)' is presented. The motivation of this research and development is to design thermally high stable cost-...

Title: ESSENTIAL DYNAMICS OF PROTEINS USING GEOMETRICAL SIMULATIONS AND SUBSPACE ANALYSIS
Author: David, Charles
Date Created: 2012
Subjects--Topical: Physics, Bioinformatics, Biophysics
Description: Essential dynamics is the application of principal component analysis to a dynamic trajectory derived from a simulation protocol in order to extract biologically relevant information contained in the high dimensional data. In this work, we apply t...