Barrett, The Honors College at Arizona State University proudly showcases the work of undergraduate honors students by sharing this collection exclusively with the ASU community.

Barrett accepts high performing, academically engaged undergraduate students and works with them in collaboration with all of the other academic units at Arizona State University. All Barrett students complete a thesis or creative project which is an opportunity to explore an intellectual interest and produce an original piece of scholarly research. The thesis or creative project is supervised and defended in front of a faculty committee. Students are able to engage with professors who are nationally recognized in their fields and committed to working with honors students. Completing a Barrett thesis or creative project is an opportunity for undergraduate honors students to contribute to the ASU academic community in a meaningful way.

Displaying 1 - 10 of 33
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Description
Pacemakers in the early 1970s were powered by betavoltaic devices which provided long lasting battery life. The betavoltaic devices also emitted gamma radiation due to inadvertent radioisotope contamination, which could not be completely shielded. The betavoltaic devices were quickly replaced by lithium batteries after their invention, and betavoltaics were abandoned.

Pacemakers in the early 1970s were powered by betavoltaic devices which provided long lasting battery life. The betavoltaic devices also emitted gamma radiation due to inadvertent radioisotope contamination, which could not be completely shielded. The betavoltaic devices were quickly replaced by lithium batteries after their invention, and betavoltaics were abandoned. Modern technological advancements made it possible to isolate beta emitting radioisotopes properly and achieve better energy conversion efficiencies which revived the topic of betavoltaics. This research project has studied state-of-the-art pacemakers and modern radioactive power sources in order to determine if modern pacemakers can be safely nuclear powered and if that is a reasonable combination.
ContributorsAwad, Al-Homam Abdualrahman (Author) / Holbert, Keith (Thesis director) / Aberle, James (Committee member) / Barrett, The Honors College (Contributor) / Electrical Engineering Program (Contributor)
Created2014-12
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Description
Generally, increasing the electrical size of an antenna will increase the directivity of the antenna. In the case of an array of identical antennas with uniform spacing, the electrical size can be increased by increasing the number of elements. However, directivity can be further increased by performing signal processing on

Generally, increasing the electrical size of an antenna will increase the directivity of the antenna. In the case of an array of identical antennas with uniform spacing, the electrical size can be increased by increasing the number of elements. However, directivity can be further increased by performing signal processing on the signals received by elements of an antenna array. This thesis focuses primarily on reproducing and expanding upon a method to increase the directivity of a two-element array using non-linear transmission lines periodically loaded with varactor diodes, which act as harmonic multipliers. Simulation and circuit design is performed using Keysight Advanced Design System, a microwave circuit simulation software package. Furthermore, a hardware implementation is discussed and recommendations are made for construction of the hardware array. Finally, possible expansion of the two-element array to a four or more element array is discussed, and preliminary simulations are examined.
ContributorsHanson, Elliot (Author) / Diaz, Rudolfo (Thesis director) / Aberle, James (Committee member) / Barrett, The Honors College (Contributor) / School of Electrical, Computer, and Energy Engineering (Contributor)
Created2015-05
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Description
Jacob D. Green's slave narrative breaks standards surrounding slave narratives and wrote a strong, unique story that allowed his audience to relate to his human characters. His narrative has unprecedented qualities that make his autobiography distinctive. An attempt to locate him in historical documents proved inconclusive and some of his

Jacob D. Green's slave narrative breaks standards surrounding slave narratives and wrote a strong, unique story that allowed his audience to relate to his human characters. His narrative has unprecedented qualities that make his autobiography distinctive. An attempt to locate him in historical documents proved inconclusive and some of his stories elaborated, but his narrative is still a valuable piece of literature that gives historians a glimpse into slavery in the United States and the abolition movement in England.
ContributorsLepore, Amanda Lynn (Author) / Schermerhorn, Calvin (Thesis director) / Soares, Rebecca (Committee member) / Barrett, The Honors College (Contributor) / School of Social Transformation (Contributor) / School of Historical, Philosophical and Religious Studies (Contributor)
Created2015-05
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DescriptionA collection of chronological, interconnected short stories following the lives and changes of a family throughout the 20th century, connected through the generations by unifying objects carried in from story to story.
ContributorsGilboa, Inbal (Author) / Bell, Matt (Thesis director) / Soares, Rebecca (Committee member) / Department of English (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
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Description
A hybrid PV/T module was built, consisting of a thermal liquid heating system and a photovoltaic module system that combine in a hybrid format. This report will discuss the work on the project from Fall 2012 to Spring 2013 and the extended section on the economics for the Honors Thesis.

A hybrid PV/T module was built, consisting of a thermal liquid heating system and a photovoltaic module system that combine in a hybrid format. This report will discuss the work on the project from Fall 2012 to Spring 2013 and the extended section on the economics for the Honors Thesis. Three stages of experiments were completed. Stage 1 showed our project was functional as we were able to verify our panel produced electricity and increased the temperature of water flowing in the system by 0.65°C. Stage 2 testing included “gluing” the flow system to the back of the panel resulting in an average increase of 4.76°C in the temperature of the water in the system. Stage 3 testing included adding insulating foam to the module which resulted in increasing the average temperature of the water in our flow system by 6.95°C. The economic calculations show the expected energy cost savings for Arizona residents.
ContributorsHaines, Brent Robert (Author) / Roedel, Ronald (Thesis director) / Aberle, James (Committee member) / Rauch, Dawson (Committee member) / Barrett, The Honors College (Contributor) / Electrical Engineering Program (Contributor)
Created2013-05
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Description
A hybrid PV/T module was built, consisting of a thermal liquid heating system and a photovoltaic module system that combine in a hybrid format. This report will discuss the work on the project from Fall 2012 to Spring 2013. Three stages of experiments were completed. Stage 1 showed our project

A hybrid PV/T module was built, consisting of a thermal liquid heating system and a photovoltaic module system that combine in a hybrid format. This report will discuss the work on the project from Fall 2012 to Spring 2013. Three stages of experiments were completed. Stage 1 showed our project was functional as we were able to verify our panel produced electricity and increased the temperature of water flowing in the system by 0.65°C. Stage 2 testing included “gluing” the flow system to the back of the panel resulting in an average increase of 4.76°C in the temperature of the water in the system. Stage 3 testing included adding insulating foam to the module which resulted in increasing the average temperature of the water in our flow system by 6.95°C.
ContributorsDenke, Steven Michael (Author) / Roedel, Ron (Thesis director) / Aberle, James (Committee member) / Rauch, Dawson (Committee member) / Barrett, The Honors College (Contributor) / Electrical Engineering Program (Contributor)
Created2013-05
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Description
In modern remote sensing, arrays of sensors, such as antennas in radio frequency (RF) systems and microphones in acoustic systems, provide a basis for estimating the direction of arrival of a narrow-band signal at the sensor array. A Uniform linear array (ULA) is the most well-studied array geometry in that

In modern remote sensing, arrays of sensors, such as antennas in radio frequency (RF) systems and microphones in acoustic systems, provide a basis for estimating the direction of arrival of a narrow-band signal at the sensor array. A Uniform linear array (ULA) is the most well-studied array geometry in that its performance characteristics and limitations are well known, especially for signals originating in the far field. In some instances, the geometry of an array may be perturbed by an environmental disturbance that actually changes its nominal geometry; such as, towing an array behind a moving vehicle. Additionally, sparse arrays have become of interest again due to recent work in co-prime arrays. These sparse arrays contain fewer elements than a ULA but maintain the array length. The effects of these alterations to a ULA are of interest. Given this motivation, theoretical and experimental (i.e. via computer simulation) processes are used to determine quantitative and qualitative effects of perturbation and sparsification on standard metrics of array performance. These metrics include: main lobe gain, main lobe width and main lobe to side lobe ratio. Furthermore, in order to ascertain results/conclusions, these effects are juxtaposed with the performance of a ULA. Through the perturbation of each element following the first element drawn from a uniform distribution centered around the nominal position, it was found that both the theoretical mean and sample mean are relatively similar to the beam pattern of the full array. Meanwhile, by using a sparsification method of maintaining all the lags, it was found that this particular method was unnecessary. Simply taking out any three elements while maintaining the length of the array will produce similar results. Some configurations of elements give a better performance based on the metrics of interest in comparison to the ULA. These results demonstrate that a sparsified, perturbed or sparsified and perturbed array can be used in place of a Uniform Linear Array depending on the application.
ContributorsSilbernagel, Drake Oliver (Author) / Cochran, Douglas (Thesis director) / Aberle, James (Committee member) / Electrical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
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Description
There are many fans who invest a lot of time, money, and effort into fantasy football. Finding a balance between maintaining loyalty to a favorite team while trying to win a fantasy league has become an issue. There are those fans who take precautions to assure loyalty while playing and

There are many fans who invest a lot of time, money, and effort into fantasy football. Finding a balance between maintaining loyalty to a favorite team while trying to win a fantasy league has become an issue. There are those fans who take precautions to assure loyalty while playing and then there are those who put their loyalties aside and treat fantasy football as its own entity outside of their fandom. In this project I am studying how playing fantasy football affects an individual's team loyalty.
ContributorsAssi, Stephanie Faye (Author) / Ingram-Waters, Mary (Thesis director) / Soares, Rebecca (Committee member) / Dwyer, Brendan P. (Committee member) / Barrett, The Honors College (Contributor) / School of Politics and Global Studies (Contributor)
Created2015-05
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Description
Cultural heritage sites bring people of different backgrounds together to learn about their differences and bond over their shared human history. The tourism industry is an essential tool to access cultural heritage sites, however tourists themselves pose a threat to the delicate state of ancient ruins and heritage objects. The

Cultural heritage sites bring people of different backgrounds together to learn about their differences and bond over their shared human history. The tourism industry is an essential tool to access cultural heritage sites, however tourists themselves pose a threat to the delicate state of ancient ruins and heritage objects. The ways in which tourists interact with cultural heritage sites negatively impacts them, resulting in the premature destruction of cultural heritage, a non-renewable resource. These damaging behaviors may include leaving the guided path, resting on the ruins themselves, touching vulnerable parts of the ruins, and committing acts of vandalism. Tourism must be managed, as the industry works to bring business and revenue into its host community. However, the industry also brings concerns of commercialization to the area, risking the integrity of the site. My research revolves around case studies of Pompeii and the Capuchin Crypt, and their underlying tension with the booming international tourism industry of Italy. Pompeii is not actually the "city frozen in time" by the eruption of Mount Vesuvius, but rather an active archaeological site from which a lot can be learned. The Capuchin Crypt is an exquisite expression of beauty in the face of death that features chambers of biblical scenes reenacted with the human remains of Capuchin friars. Each of the sites reflects an aspect of the identity of Italy as a nation and of Italians as individuals, all contributing to a greater global identity. My case studies and research allowed me to find solutions that promote the collaboration between tourism and cultural heritage sites, rather than a state of constant tension.
ContributorsMartin, Jacqueline Victoria (Author) / Graff, Sarah (Thesis director) / Soares, Rebecca (Committee member) / School of Art (Contributor) / School of International Letters and Cultures (Contributor) / School of Human Evolution and Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
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Description
Books are constantly changing. For this project I looked at books and how they have changed over time. Starting with just before the Gutenberg Printing Press was invented and ending with the introduction of the Internet this project tracked those changes over time and looked at how they changed how

Books are constantly changing. For this project I looked at books and how they have changed over time. Starting with just before the Gutenberg Printing Press was invented and ending with the introduction of the Internet this project tracked those changes over time and looked at how they changed how people read, who read, and what this said about the people at the time. First, I looked at how books changed physically. At the time of the Gutenberg Printing Press vellum and parchment were being used for the pages of books and illuminated manuscripts made some volumes works of art. Now with the Internet greatly influencing books, that format is radically different. Different materials allowed for books to be made more cheaply and when this happened more people were able to afford them. I also looked at aspects of books like publishing and where the books were sold and how that made a difference in how and why people read. Through all of my research I kept a blog and this allowed me to be almost part of the history and research I was doing. This blog will eventually become an eBook. Books have not only shaped history and people but have been shaped by history. Books are a vital part of helping to spread information and while they will keep changing especially with the Internet, books will never disappear.
ContributorsAdams, Kennedy Rei (Author) / Tebeau, Mark (Thesis director) / Soares, Rebecca (Committee member) / School of Historical, Philosophical and Religious Studies (Contributor) / School of Social Transformation (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05