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 89
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
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
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
The sport of football has become one of the most widely loved and watched sports in the United States. Fans of football are extremely dedicated to the sport and form very personal, emotional attachments to teams within the National Football League. Through studying these fans, three main analysis topics will be addressed in this thesis: the established fan knowledge that creates rules within the fandom on how a fan participates and the exceptions to those rules, the need that fan's who do not fit into the normative patterns of the fandom feel to explain their motivations, and the degree of fanship that can be measured through a fan's explanation for their deviant behavior. For this fandom analysis, two sets of data will be referenced throughout the discussion. The first is anecdotal data pulled from various reddit threads on the personal experiences of each fan as well as some opinion sharing about the National Football League fandom. The second set of data is primary data that I have compiled via a survey. The established fan knowledge within this fandom is two fold: First, fans choose their team for a specific reason (usually based off of the team their parent's are a fan of or the state they grew up in), which typically takes place by age twelve. Secondly, once a fan chooses a team, they should stick with that team through their entire fanship. This second piece of fan knowledge is the most important rule within the fandom. This idea of loyalty is what guides fan participation. Identifying this rule led me to my main question about this fandom \u2014 if fans are so dedicated to their chosen team, what does it mean when someone switches to a new team. I feel that this breaking of a bond that seems so personal to fans is important and should be researched. This brought me to researching these fans that have switched teams, learning why, as well as what this group of fans can say about the National Football League fandom as a whole.
ContributorsGutierrez, Brooke Kathleen (Author) / Eaton, John (Thesis director) / Lee, Christopher (Committee member) / W. P. Carey School of Business (Contributor) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
Traditions come about in a variety of ways varying from school to school and sport to sport. Fans in the NCAA have the most connection to their team’s traditions when they follow one or multiple dimensions of the P.A.T.H. framework. Traditions that are Passionate, Authentic, Tribal, and Historical help fans have a sacred, emotional bond between themselves and their favorite team. Most of the time, this bond makes people behave in a way that they do not normally. The best traditions create an atmosphere that allows someone to come back decades later and feel like they never left. When fans feel strongly toward the tradition, it creates a passion unlike any other. The fans will go through great lengths to keep the tradition happening. When a tradition comes about organically and is not forced on the fanbase, it follows the authentic dimension. Fanbases will not be willing to keep a tradition going if they feel like it was manufactured; it needs to be something that they want to do. The tribal dimension is created by the desire people have to be a part of a group because of a shared belief. People have a need to fit in and belong, so if a tradition is able to create this feeling, it will be more likely to stick. The historical dimension explains itself; a tradition that has been around for many years has a much better chance of being around for years to come because of the history associated with it. Traditions that encompass one or all of the dimensions of P.A.T.H. have a better chance of sticking and becoming a tradition that is recognized nationally. Traditions should eventually become something that completes the game day experience. At the end of the day, people will not remember exact plays that happened, but they will remember the experiences they shared with everyone else in the stands.
ContributorsWeller, Allison Jo (Author) / Eaton, John (Thesis director) / Lee, Christopher (Committee member) / Department of Management and Entrepreneurship (Contributor) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
The America's Cup is the preeminent international sailing competition. Since the cup was first awarded to the United States in 1851 for winning a race around the Isle of Wight in England, it has been up for perpetual international competition. The purpose of this project is to assess the marketing strategies implemented for the 35th America's Cup which took place in Bermuda in June of 2017. Through qualitative and quantitative research I discovered the strengths and weaknesses of the current marketing strategies in addition to identifying opportunities for future Cups. While attending the 35th America's Cup in Bermuda I was able to conduct long interviews with several c-level executives of the America's Cup Event Authority as well as conduct a survey with attendees of the Cup. Analysis of this data allowed me to determine effective consumer awareness practices, ideal consumer involvement techniques, experience design, optimal marketing tactics, and strategic branding. I was also able to identify critical goals that the current Event Authority Management have set that embody their vision for future America's Cups. The ultimate objective of this research is to propose marketing strategies that will expand the influence of the America's Cup and transform it into an iconic and widely known sporting event in the United States. In previous years there has been very limited marketing invested in building awareness for the America's Cup so I plan to identify components that have brought them success in the past and then recommend new strategies and tactics that will successfully build awareness and increase viewership. These elements will then be able to be integrated into a marketing strategy and experience model for future America's Cups.
ContributorsHeisler, Alexandra Morgan (Author) / Gray, Nancy (Thesis director) / Lee, Christopher (Committee member) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Remotely controlled flying vehicles such as UAVs are becoming more common due to decreases in material costs and increases in performance of components. Radio control link options, however, have not improved at the same rate as airframes, motors, flight controllers, etc [HobbyKing]. Most UAVs require a radio link, often at 2.4 GHz, for flight control, and a second link at 915 MHz for telemetry data transmission [HobbyKing]. Occasionally there is also a video link at either 2.4 GHz or 5.8 GHz. Having multiple transmitters increase power usage from the limited battery reserve that the UAV carries. It also increases weight and space used on the airframe. In addition, the 2.4 GHz band is often congested [ISM Congestion] and does not provide as great a range for a given transmission power as lower frequencies do [Wu]. Attempting to reduce space and weight, power consumption, and simplify design, while increasing control and telemetry range requires the design, testing, and implementation of a radio link that handles both real-time flight control and telemetry with the same transceiver. Only the flight control and telemetry will be addressed in this project. Merging and/or improving the video link will not be tackled at this time in order to simplify project goals to fit inside time constraints. The new radio link system will be verified for functionality then power and range test data will be gathered to determine how effective it is.
ContributorsPortillo-Wightman, Gabrielle Raquel (Author) / Goryll, Michael (Thesis director) / Aberle, James (Committee member) / Electrical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2017-12
Description
The purpose of the Very Long Instruction Word (VLIW) Remotely Reconfigurable DSP Element is to use VLIW as a design process and to design hardware components of a reconfigurable DSP Element and ascertaining the overall length of the Very Long Instruction Word. This project is focused solely on hardware components being designed by hand with regards to certain specifications deemed by General Dynamics Mission Systems, and using the designs, finding the overall length of the VLIW for use in future work. To design each of the elements, General Dynamics had specified several requirements. Each element was then designed individually according to the requirements. After the initial design, each was sent back for a design review from General Dynamics, and after revision, all parts were linked together for an overall calculation on the length of the VLIW. VLIW Reconfigurable DSP Elements is not a new concept, but has yet to have a proof of concept published. Future work includes a proof of concept with software (done by the ASU Capstone team), then future development by General Dynamics. Should they choose to continue with this project, they will continue testing on FPGA boards, and perhaps future development into an ASIC. Overall the purpose of General Dynamics for proposing this project is for deep space payloads, for which this project has the most applications.
ContributorsYiin, Nathan Kehan (Author) / Clark, Lawrence (Thesis director) / Aberle, James (Committee member) / Electrical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12