Honors Theses Open Access
 
Filters: Department: "Physics and Astronomy" Collection: "ir_htoa"
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CreatorTitleDescriptionSubjectDate
1 Hanes, Josh T.A comparison of nuclear thermal rockets with traditional chemical rockets for space transportThe Solar System has multiple destinations that private and governmental space agencies are planning to explore. Missions within the Solar System are both exorbitantly expensive and time intensive projects that involve high risks for the organizations involved. A mission that is currently being...Nuclear rockets - research; space vehicles - design - research; nuclear thermal rockets; chemical rockets; space transport2016-04
2 Lee, Charles Chang SukA demonstration apparatus for optical pumping of rubidiumOptical pumping refers to the use of light in order to elevate ("pump") the spin (intrinsic angular momentum) of an atom or molecule. This process is of interest from a pedagogical and experimental perspective because it encapsulates fundamental properties of atomic physics and quantum mechanics. Fu...Optical pumping -- Research Spin exchange -- Research Rubidium isotopes -- Research2015-05
3 Simon, Philip C.A study of the optimized load of a traveling wave thermoacoustic heat engineThermal interaction between differentially heated solid material and ambient gas in a resonator can lead to self-sustained oscillations or the transportation of heat in accordance with the thermoacoustic effect, first explained by Lord Rayleigh. In this research the phenomenon is employed in a lo...Thermoacoustic engine - Research; Energy conservation2016-03
4 Blanton, Joseph P.AC Magnetic Susceptibility of Sub-Millimeter Superconductor Samples at Extreme ConditionsSuperconductivity is a unique state of matter observed at cryogenic temperatures in many materials. Superconductors are defined as materials that have zero DC electrical resistance and perfect diamagnetism below a critical transition temperature, Tc. These properties are very useful for many applica...2018
5 Stahulak, Robert J.Applying Chiral Field Theory to Neutron Star Moments of InertiaIn this work we examine the applications of neutron stars and their unique structure toprovide limits on the range of possible equations of state which describe nuclear matter.We follow the history of developments in nuclear physics and discuss the current state ofknowledge of neutron stars, includ...2019
6 Stahulak, Robert J.Applying chiral field Theory to Neutron Star Moments of InertiaIn this work we examine the applications of neutron stars and their unique structure to provide limits on the range of possible equations of state which describe nuclear matter. We follow the history of developments in nuclear physics and discuss the current state of knowledge of neutron stars, incl...2019
7 Renz, AndyAssessment of exercise-stimulated tissue oxygenation in calf muscle with functional MRIPeripheral artery disease (PAD) affects millions of patients in the USA, and effective diagnosis and management of PAD is a major clinical goal. One promising avenue of research towards the goal is through functional MRI, which provides non-invasive measurement of tissue oxygenation. For a group of ...Arteries - Diseases - Diagnosis; Magnetic resonance imaging - Research; Calf muscle; Peripheral arterial disease; MATLAB2016-04
8 Wu, Tingshiuan C.Characterising the Matched-Runs Method for Analysing Images of Extended T-Ray Sources using VeritasThe matched-runs method of performing high-resolution imaging of extended very high-energy (VHE, E>100 GeV) γ-ray sources using the Very Energetic Radiation Imaging Telescope Array System (VERITAS) is characterized in this study. Several extended VHE γ-ray sources have been detected by the Milagro...
9 Christensen, MasenCooperative primers: Intersecting spherical model for optimization of linker and gap lengthsDetection of specific sequences of DNA is invaluable for diagnosing the presence of a pathogen, as well as other areas of genetic analysis. A common way of detecting DNA is replicating it millions of times through Polymerase Chain Reaction (PCR) and using fluorescent molecules to detect those copies...Pathogenic microorganisms - Detection; DNA - Research; Polymerase chain reaction - Research; Cooperative primers; Aluminum foam materials; Load frame2016-05
10 Garcia, Anthony D.Exploring galactic chemical abundance of phosphorus in the ultra-violet with HSTUltra violet observed spectral data taken by the Hubble Space Telescope (HST) are made available to the public. These data sets have been extracted into one-dimensional and flux-calibrated spectral data, and are ready for analysis. We have normalized the extracted spectra with a Planck black body cu...Milky Way - Phosphorus content2014-05
11 Johnston, Jessica FaithFrom nanoscience to astrophysics: using high-resolution microscopy and spectroscopy of carbonaceous chondrites to understand planet formationIn the field of astrophysics, there currently exists an outstanding gap of knowledge in understanding planet formation dynamics. At the formation scale ranging from millimeters to meters, astrophysicists debate as to how solar nebulae form larger masses-planets and other kilometer-sized bodies-from ...Physics & Astronomy2012-05
12 Imig, JulieGalactic Evolution of Phosphorus and Sulfur Using Star ClustersThe chemical composition of a galaxy changes as it evolves, so understanding the evolutionary processes of individual elements can be powerful tools in unravelling the history of a galaxy. Phosphorus is considered one of the key building blocks of life, and sulfur is an alpha-element, a tracer of su...2017
13 Wallace, Joshua J.Lyman-alpha emission as a probe of galaxy environmentsAs a result of resonant scatterings off hydrogen atoms, Lya emission from star-forming galaxies provides a potential probe of the neutral gas environment around them. In order to determine the utility of Lya emission as a probe of gas environments we study the effects of environmental anisotropy on ...Galaxies - Spectra2014-05
14 Rou, JanvidaMonte-Carlo simulation of stellar intensity interferometryStellar intensity interferometers will allow for achieving stellar imaging with a tenth of a milli-arcsecond resolution in the optical band by taking advantage of the large light collecting area and broad range of inter-telescope distances offered by future gamma-ray Air Cherenkov Telescope (ACT) ar...Monte Carlo simulation2012-05
15 Fullmer, Alexander T.Optimization of gamma/hadron separation under variable source intensities and energy spectraThe High Altitude Water Cherenkov (HAWC) gamma-ray observatory consists of an array of water Cherenkov tanks that can detect extensive air showers (EAS) generated by astrophysical cosmic rays and gamma rays. One of the greatest challenges in using the HAWC observatory to search for astrophysical gam...Gamma ra sources - Observations; Cosmic rays - Observations; Gamma ray astronomy - Research2014-05
16 Hales, LaurelPhysics show and tell and elementary science educationIt is a well-known fact that American children are performing below their peers in international science and mathematics examinations, leading to what is commonly called the STEM education crisis. This project was created in an attempt to resolve this crisis by improving elementary school science ed...Science - Study and teaching (Elementary) - United States2014-05
17 Dutson, Matthew J.Reconstruction of Cosmic Ray Geometry using Cherenkov backscatteringFluorescence detectors are often used to examine the energy spectrum and arrival directions of ultra high energy cosmic rays. An accurate reconstruction of geometry is key when determining both energy and direction. In the past, it has been necessary to build multiple fluorescence detectors to take ...2017
18 Christopherson, AnnaSearch for the highest energy gamma rays of galactic origin using telescope array low energy fluorescence detectorsTelescope Array (TA) is the largest cosmic ray detector in the Northern Hemisphere, designed to measure cosmic rays with energies greater than 1018 eV. TA combines three fluorescence telescope sites, which are each instrumented with 12-14 telescopes, surrounding an array of 507 surface detectors tha...2022
19 Gregersen, DylanSearching for extragalactic stars among candidate halo moving clustersWe seek to identify stars accreted into the Milky Way which are remnants of its merging with smaller galaxies or star clusters. In our approach, we selected stars from candidate moving clusters in the Milky Way's Halo. These stars were grouped by similar stellar characteristics: orbital energy, orbi...Halo stars; Extragalactic origins; Milky Way2012-05
20 Jensen, Trey W.Spectral evolution in high redshift quasars from the final boss sampleWe report on a study of the spectral variations in a sample of 102,150 quasars from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey (SDSS-III). After mitigating selection effects and Malmquist bias over the redshift range 2:1 □ z □ 3:5, we create high...Quasars -- Spectra; Red shift -- Observations; Baryon Oscillation Spectroscopic Survey; Sloan Digital Sky Survey; Redshift evolution
21 Dyer, JamieStudies of Spectral Variability of Quasars with Multi-Epoch AnalysesQuasars are supermassive black holes known to drive galaxy formation. They can have masses up to 109 solar masses and are the most luminous known objects in the sky, making them very important trackers of cosmic evolution. Given the large amount of research already surrounding quasar astrophysics, t...2017
22 Kelley, Logan T.Weighing Abell 2029: How Different Assumptions Change a Galaxy Cluster's MassAt a given mass, the amount of galaxy clusters within some volume greatly depends on certain cosmological parameters. Examples of such parameters are: how much total mass there is (nm), the equation of state parameter of dark energy (w), and the scale of fluctuations (o8). These quantities can be me...2020
23 Wilson, AlexisWest Antarctica as a Natural Laboratory for Cloud MicrophysicsClouds contribute to energy regulation in the global climate system. Remote and unaffected by local pollution sources, Antarctica offers a unique laboratory to study clouds and their influence on the surface energy budget. The study of these clouds is particularly interesting as global temperatures ...2017
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