Barrett, The Honors College Thesis/Creative Project Collection
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 37
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. 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
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 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
Description
The unprecedented rise of terrorist network ISIL has brought the revolutionary Salafi agenda to the forefront of global politics. This thesis provides an analysis of the ideology and an overview of ISIL. The research is comprised of reports on the organization from prominent think-tanks, books analyzing the tenets and thinkers of Salafi radicalism and original source material confiscated from ISIL's predecessor al-Qaeda in Iraq (AQI). An international coalition is posited as a solution to the threat as well as the Middle Eastern terrorist threat more broadly. However, the likelihood of such international cooperation is minimal, and the commitment it would require may make it unfeasible.
ContributorsSims, Alyssa Gabrielle (Author) / Simon, Sheldon (Thesis director) / Ripley, Charles (Committee member) / Barrett, The Honors College (Contributor) / School of International Letters and Cultures (Contributor) / W. P. Carey School of Business (Contributor) / School of Historical, Philosophical and Religious Studies (Contributor)
Created2015-05
Description
Within sixty years, the People’s Republic of China has risen from a struggling post-civil war state to the second largest economy in the world, comprising of 16.71 percent of the global economy as of 2015. While China has grown, its presence internationally has grown as well—China has utilized its capital to foment important relationships and foster soft power dynamics, making billions available in development aid and investment projects across the globe, most notably in Africa and Latin America, where Chinese goods have begun to dominate the markets there as they have in American counterparts. However, within Latin America China has been investing in countries that are traditionally seen as “risky” financial investments. This paper hypothesizes that the returns on Chinese investments in Latin America are not financial, but political—that China is investing in expansion of its soft-power and legitimizing its beginnings of global hegemony. The paper also explores the success of these initiatives by comparing the level of Chinese investment to changes in Latin American foreign policy alignment, discourse, and agreements through utilizing case studies of Venezuela and Bolivia.
ContributorsHochhaus, Natalie (Co-author) / Yan, Jaylia (Co-author) / Thomson, Henry (Thesis director) / Ripley, Charles (Committee member) / School of Politics and Global Studies (Contributor) / Department of Economics (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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. 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
Description
The difficulty of measuring complex goals within nongovernmental organizations is well detailed in nonprofit management literature. For many years, NGOs have faced obstacles ranging from the technical difficulties of measuring intangible missions to ambiguous or unreliable performance criteria to political issues in the design of measurement systems that cater to diverse stakeholders. But despite the challenges, many nongovernmental organizations and researchers are rising to the challenge to design and implement effective systems of measurement. This thesis outlines the lessons learned from a study of the history and development of performance measurement, existing measurement systems and their implementation, as well as various insights gained from interviews conducted in Spring 2013 with leaders of nonprofit and nongovernmental organizations that are facing or that have faced these and many more obstacles in performance management. With these goals, this paper will strive to answer two main questions. What are performance measures and how do they differ by sector? What are performance measurement systems and why are they important?
ContributorsFernandez, Emily Elizabeth (Author) / Thomas, George (Thesis director) / Barsam, Ara (Committee member) / Ripley, Charles (Committee member) / Barrett, The Honors College (Contributor) / School of Humanities, Arts, and Cultural Studies (Contributor) / School of Politics and Global Studies (Contributor)
Created2013-05
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 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
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 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
Description
Energiewende refers to the final legislation that sealed the decision to phase out Germany's nuclear power plants prematurely following the Fukushima nuclear disaster. This policy has been in place as of 2011, however, there has been little research done on the comprehensive effects of it within Germany, on German global relationships and obligations. As such, this paper has identified the top areas that have been affected by the legislation as the climate sector, the humanitarian sector and the security sector. In addition to identifying these areas, they have analyzed in the international sphere and this is analysis is used to determine the impact that the German legislation has on political realities in surrounding countries. The impacts are then compared to German obligations, as outlined in numerous treaties from within the three main areas discussed. Not only that, but the effects are also examined within the domestic sphere. The domestic effects are also compared to German obligations from international treaties, while focusing on high priority German issues, such as poverty. This paper ultimately examines the real policy influence that Germany has exhibited as a result of enacting a unique, and ambitious energy policy in a time in which many are still uncertain of the safety, or lack thereof, of nuclear power. The aim is to provide Germany, and countries beginning to question the role of nuclear power, with concurrent solutions to ensure a successful phase out that allows adherence to international and domestic obligations while also illustrating the positive role that nuclear power can play in energy production and policy.
ContributorsMcDonald, Victoria Lynne (Author) / Benkert, Volker (Thesis director) / Ripley, Charles (Committee member) / Jones, Christopher (Committee member) / School of Politics and Global Studies (Contributor, Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
The HIV pandemic spawned a global biomedical research effort which continues today. Because of multinational clinical studies, doctors and health officials possess more tools than ever before for the effective prevention and treatment of HIV/AIDS. The relationship between the United States and Sub-Saharan African nations features prominently within this global research effort. More specifically, many of the most significant HIV-related research findings emanate from clinical trials with a unique multinational configuration: the study protocol is largely designed and funded by American sources but executed at clinical research sites in Sub-Saharan African countries like South Africa and Zimbabwe. This thesis investigates the context and ethics of this configuration, with a focus on US-backed trials conducted in South Africa specifically. Using data collected from semi-structured interviews conducted at South African HIV clinical research sites, this thesis uncovers two significant ethical problems: insufficient benefits delivered to South African clinical trial participants, and informal processes occurring alongside formal protocol. By examining scope, effects, and implications of these problems, it becomes clear that although this research system delivers powerful results, there exists room for improvement.
ContributorsGill, Kohinoor Singh (Author) / Hurlbut, Ben (Thesis director) / Ripley, Charles (Committee member) / Vanig, Thanes (Committee member) / School of Politics and Global Studies (Contributor) / WPC Graduate Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12