Index Catalog // ScholarsArchive@OSU

Checking for Noise Model Consistency Between the NANOGrav 12.5- and 15-Year Data Sets

Creator:: Ashby, Andrew
Abstract:: The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) is an international collaboration that seeks to use perturbations in the time of arrivals of pulsar signals to detect gravitational waves in the nanohertz range of frequencies. The 15-year data set will be released as of June 2023. It is a...
Resource Type:: Undergraduate Thesis

Computational study of the structure of indium alloys at low temperatures using ab initio methods [Presentation]

Creator:: Shin, Hongsik (Jay)
Abstract:: Presentation for the thesis "Computational Study of the Structure of Indium Alloys at Low Temperatures Using ab initio Methods."
Resource Type:: Presentation

Computational study of the structure of indium alloys at low temperatures using ab initio methods

Creator:: Shin, Hongsik (Jay)
Abstract:: Crystals are solid materials with periodic and symmetric molecular patterns. The structure of a crystalline solid determines its properties, making it essential to study its structures. From the principle of minimum energy, a crystal will choose a structure with the lowest free energy F = U – TS. At low...
Resource Type:: Undergraduate Thesis

Investigating polymer quantum mechanics : mathematical formulation, the particle on a ring, and time evolution

Creator:: Seibert, Basie S.
Abstract:: Loop quantum gravity is a theoretical framework which aims to quantize general relativity. One of the unique aspects of this theory is that it imposes a discrete structure on space-time. One toy model of loop quantum gravity is loop quantum cosmology, which maintains the idea of a discrete spatial structure...
Resource Type:: Honors College Thesis

Using the Langevin Equation to Verify a Single-Particle Brownian Motion Simulation

Creator:: Snyder, Brendan
Abstract:: Brownian motion is the movement of a particle in a fluid resulting from collisions with surrounding molecules. It has modern applications in simulating fluid dynamics and the motion of proteins in biophysics. Brownian motion simulations generally evolve the initial state by applying Newton’s second law to every particle. These simulations...
Resource Type:: Undergraduate Thesis

The particle on a ring in polymer quantum mechanics : a quantum cosmology analogue on a compact space

Creator:: Siebersma, Maxwell R.
Abstract:: Loop quantum gravity is a framework for quantizing general relativity which imposes a discrete structure on space. In exploring the structure of loop quantum gravity, researchers have investigated loop quantum cosmology, a toy model with reduced degrees of freedom while maintaining a discrete space. Polymer quantum mechanics is a framework...
Resource Type:: Honors College Thesis

Time resolved terahertz spectroscopy of photocarrier dynamics in WSe2

Creator:: Johnson, Nathan
Abstract:: Semiconductors serve an integral role in our technologies today. However, with new advancements in ultra-fast electronics, we are approaching the fundamental speed limits of traditional silicon-based semiconductors. Silicon-based semiconductors typically exhibit photocarrier dynamics in nanosecond timescales. Transition metal dichalcogenides (TMDs) are 2D materials shown to exhibit photocarrier dynamics in picosecond...
Resource Type:: Undergraduate Thesis

Computational study of the electrostatic interaction between kinesin-5/BimC and the microtubule

Creator:: Chen, Zishi
Resource Type:: Undergraduate Thesis

Tabletop fusion reactors : construction and testing of a demonstration inertial electrostatic confinement fusor

Creator:: Holler, Logan R.
Abstract:: Nuclear fusion reactors comprise a significant field of study due to their potential to provide a limitless, clean, and sustainable source of energy. The inertial electrostatic confinement fusor is a type of fusion-generating device that accelerates deuterium gas to the conditions required for fusion. The goal of this research was...
Resource Type:: Honors College Thesis

The Geometry of the Penrose Diagram for Minkowski Spacetime

Creator:: Siebersma, Maxwell
Abstract:: Culture of Writing Award in Mathematics (2022)
Resource Type:: Technical Report

Modeling optical reflection and electric field intensity in organic semiconductor microcavities

Creator:: Munk, Rebecca
Abstract:: Organic semiconductors are a promising alternative to the traditional inorganic semiconductors, such as silicon. Organics are solution-processable, low-cost, sustainable, and have interesting optoelectronic properties. One such property is the formation of exciton-polaritons, quantum quasi-particles formed by an electron-hole pair in the semiconductor and a photon. This process can be induced...
Resource Type:: Undergraduate Thesis

Interannual variability of oceanographic conditions on the continental shelf outside of Sermilik Fjord

Creator:: Glickman, Abbie A.
Abstract:: Freshwater flux from the Greenland Ice Sheet has the capacity to affect regional and global circulation as well as contribute to sea level rise. Outlet glaciers are an important part of this process. They provide pathways for inland glaciers and ice sheets to melt and drain into the surrounding oceans....
Resource Type:: Undergraduate Thesis

Early Prediction of Student Performance using Neural Networks: An exploratory study on the efficacy of a neural network model at predicting students’ final grades in a flipped classroom environment

Creator:: Bailey, Derrick
Abstract:: With the unique conceptual and mathematical backgrounds of every introductory physics student, there is no way to design a rigid curriculum that anticipates and meets every student’s needs. We can employ machine learning to explore the correlations that exist in the voluminous data from educational settings. That is, institutional, gradebook,...
Resource Type:: Undergraduate Thesis

The Two Wells System: A Benchmark for Monte Carlo Methods in Statistical Mechanics

Creator:: Sprueill, Henry
Abstract:: Computational statistical mechanics leans heavily on the class of Markov Chain Monte Carlo Algorithms. Many such algorithms exist, and simulations can run for several weeks, making the selection of algorithms a difficult, but critical task. In this work, we introduce a benchmark system of two quadratic wells with an analytical...
Resource Type:: Undergraduate Thesis

Locating and Observing Pulsars for Use in Gravitational Wave Detection

Creator:: Díaz, Ian H.
Abstract:: By studying gravitational waves, we can gain new insights into the merging events between massive objects such as black holes as well as neutron stars. Moreover, studying low-frequency waves allows us to observe merging events between supermassive black holes at the centers of galaxies, which in turn allows us to...
Resource Type:: Honors College Thesis

Analysis of Radio Signals for New Pulsar Detection

Creator:: Downing, Jaden
Abstract:: The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) times periodic signals from pulsars as a method of detecting gravitational waves. NANOGrav detects waves emitted in the nanohertz frequency range, a range lower than those previously explored by other organizations. This allows for the study of rarely observed sources such...
Resource Type:: Honors College Thesis

Regulation of Microtubule Dynamics by Engineered Kinesin-14 Motors

Creator:: Eagen, Emily
Abstract:: Microtubules (MT) are highly dynamic cylindrical-like structures within cells whose growth is controlled by motor proteins, a class of biological machines that walk along the MT while simultaneously regulating MT growth. Here we are interested in the behavior of kinesin-14 motor proteins. Although processive behavior of kinesin-14 motors has been...
Resource Type:: Honors College Thesis

Estimating basal glacier conditions using internal layer slopes

Creator:: Carroll, Georgia
Abstract:: Ice-penetrating radar produces detailed images of the internal ice layers in a glacier. Because the layers form from each year's snowfall, the curving of the internal layers is a record of the climate conditions that the glacier experienced as it flowed throughout the millennia. The Hiawatha Glacier lies on top...
Resource Type:: Honors College Thesis

Investigating Carrier Temperature in LED Quantum Well Driven Below the Turn-On Voltage

Creator:: Jeliazkova, Michelle
Abstract:: Electron behavior in semiconductor materials critically determines electronic applications. Previous research has shown carrier temperature higher than the lattice temperature of LEDs due to energy differences in the quantum well. Study of these findings requires a novel set-up to dig out weak signal in a thermal-noise filled environment; analytical methods...
Resource Type:: Honors College Thesis

Measuring Bubble Pressure in Glacier Ice

Creator:: Clonch, Cameron E.
Abstract:: Recent observations of tidewater glaciers find that the currently accepted model for predicting ice melt vastly underestimates observed melt rates. The release of pressurized air bubbles into the ocean from pores in the ice is one process that can amplify glacier melt. To incorporate this process into models, we need...
Resource Type:: Honors College Thesis

Search Constraints

Search Results

Limit your search