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 57
Description
An in-depth analysis on the effects vortex generators cause to the boundary layer separation that occurs when an internal flow passes through a diffuser is presented. By understanding the effects vortex generators demonstrate on the boundary layer, they can be utilized to improve the performance and efficiencies of diffusers and other internal flow applications. An experiment was constructed to acquire physical data that could assess the change in performance of the diffusers once vortex generators were applied. The experiment consisted of pushing air through rectangular diffusers with half angles of 10, 20, and 30 degrees. A velocity distribution model was created for each diffuser without the application of vortex generators before modeling the velocity distribution with the application of vortex generators. This allowed the two results to be directly compared to one another and the improvements to be quantified. This was completed by using the velocity distribution model to find the partial mass flow rate through the outer portion of the diffuser's cross-sectional area. The analysis concluded that the vortex generators noticeably increased the performance of the diffusers. This was best seen in the performance of the 30-degree diffuser. Initially the diffuser experienced airflow velocities near zero towards the edges. This led to 0.18% of the mass flow rate occurring in the outer one-fourth portion of the cross-sectional area. With the application of vortex generators, this percentage increased to 5.7%. The 20-degree diffuser improved from 2.5% to 7.9% of the total mass flow rate in the outer portion and the 10-degree diffuser improved from 11.9% to 19.2%. These results demonstrate an increase in performance by the addition of vortex generators while allowing the possibility for further investigation on improvement through the design and configuration of these vortex generators.
ContributorsSanchez, Zachary Daniel (Author) / Takahashi, Timothy (Thesis director) / Herrmann, Marcus (Committee member) / Mechanical and Aerospace Engineering Program (Contributor) / W.P. Carey School of Business (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
In a world where tweets, texts, posts, likes and favorites are a part of our daily lives, it's hard not to believe everything we see. Every little detail of one's personal life is easily shared with the world with the click of a button. And because of this, the beauty standards that society has created is jumping from the pages of magazines and TV shows to apps such as Instagram and Facebook. The majority of social media users are young teens and adults, but the popularity of these apps is rising among kids as young as five years old as well. These are some of the most impressionable years of one's life. So, by seeing these standards that qualify someone as "beautiful," individuals are likely to strive toward these standards. And while some may seem impossible to attain, individuals are willing to go to extreme lengths to get there. Qualities like the "thigh gap" are slowly becoming more popular, and are putting individuals at risk. In a country where the ideal woman is skinny, and most of the celebrities and models showcase these nearly impossible standards, it's hard not to fall into the trap. With the addition of editing software and filters to already existing social media applications, the ability to edit and enhance photos is in the hands of the user. Photos can be edited so dramatically different from the original that what we're seeing doesn't even exist. This project explores the false reality that social media is creating and the negative effects it has on young girls and women. It also offers a solution to the problem.
ContributorsHenry, Lauren Nicole (Author) / Sanft, Alfred (Thesis director) / Heywood, William (Committee member) / School of International Letters and Cultures (Contributor) / The Design School (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
"Many Faces" is the result of a year-long exploration of online harassment. It includes multiple graphic design projects which reference the phenomenon of online harassment and attempt to solve it (or at least contribute to a solution), all in different ways.
According to a survey performed by Pew Research in 2014, 40% of Internet users have experienced online harassment. 18% had experienced severe harassment – stalking, sexual harassment, physical threats – while 22% had only experienced less severe harassment, such as name-calling. Women ages 18–24 receive a disproportionately large percentage of all severe online harassment. The emotional trauma suffered from severe or long-term harassment can lead to (and has led to) fear, depression, and suicide in the worst cases.
The anonymity of the Internet partially enables online harassment, since it allows perpetrators to hide behind usernames or false images while they harass others — there is little accountability. However, 66% of online harassment happens on social media platforms, where people's names and images are usually readily available. This indicates that anonymity is not the only factor, and not even the main factor. Rather, the separation of the Internet from the physical world, that which makes it less "real," is what enables harassers to treat it as entirely different experience. They can say across a keyboard what they might never say face-to-face.
To increase my understanding of the problem, I made two three-dimensional pieces – a functioning clock and an exhibit wall. Each project explored different aspects of online harassment and implored the audience to keep compassion and kindness in mind while interacting with others digitally.
Another goal was to create a campaign which could tackle the problem on a larger, more definite scale. To learn from others' attempts, I studied two recent, real-world campaigns against online harassment, Zero Trollerance and HeartMob. Each of these received significant amounts of good press on online news outlets, but people who enjoyed or were helped by those campaigns were grossly outnumbered by those who criticized and even lambasted those campaigns, for various reasons.
I determined that the reactive nature of those campaigns was the main cause of their failure, so I created a proactive campaign with the goal of preventing online harassment, rather than correcting it. I designed the beginnings of "You & I," a multiplayer online game for children ages 4–6, which would encourage positive interaction between players through its very game mechanics. Ideally, the habits formed by the children while playing this game would carry over to their future Internet experiences, and a new generation of kinder, more cooperative, "native" Internet users would arise, reducing the amount of harassment seen on the Internet.
According to a survey performed by Pew Research in 2014, 40% of Internet users have experienced online harassment. 18% had experienced severe harassment – stalking, sexual harassment, physical threats – while 22% had only experienced less severe harassment, such as name-calling. Women ages 18–24 receive a disproportionately large percentage of all severe online harassment. The emotional trauma suffered from severe or long-term harassment can lead to (and has led to) fear, depression, and suicide in the worst cases.
The anonymity of the Internet partially enables online harassment, since it allows perpetrators to hide behind usernames or false images while they harass others — there is little accountability. However, 66% of online harassment happens on social media platforms, where people's names and images are usually readily available. This indicates that anonymity is not the only factor, and not even the main factor. Rather, the separation of the Internet from the physical world, that which makes it less "real," is what enables harassers to treat it as entirely different experience. They can say across a keyboard what they might never say face-to-face.
To increase my understanding of the problem, I made two three-dimensional pieces – a functioning clock and an exhibit wall. Each project explored different aspects of online harassment and implored the audience to keep compassion and kindness in mind while interacting with others digitally.
Another goal was to create a campaign which could tackle the problem on a larger, more definite scale. To learn from others' attempts, I studied two recent, real-world campaigns against online harassment, Zero Trollerance and HeartMob. Each of these received significant amounts of good press on online news outlets, but people who enjoyed or were helped by those campaigns were grossly outnumbered by those who criticized and even lambasted those campaigns, for various reasons.
I determined that the reactive nature of those campaigns was the main cause of their failure, so I created a proactive campaign with the goal of preventing online harassment, rather than correcting it. I designed the beginnings of "You & I," a multiplayer online game for children ages 4–6, which would encourage positive interaction between players through its very game mechanics. Ideally, the habits formed by the children while playing this game would carry over to their future Internet experiences, and a new generation of kinder, more cooperative, "native" Internet users would arise, reducing the amount of harassment seen on the Internet.
ContributorsWilliams, Peter Ross (Author) / Sanft, Alfred (Thesis director) / Heywood, William (Committee member) / The Design School (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
This experiment used hotwire anemometry to examine the von Kármán vortex street and how different surface conditions affect the wake profile of circular airfoils, or bluff bodies. Specifically, this experiment investigated how the various surface conditions affected the shedding frequency and Strouhal Number of the vortex street as Reynolds Number is increased. The cylinders tested varied diameter, surface finish, and wire wrapping. Larger diameters corresponded with lower shedding frequencies, rougher surfaces decreased Strouhal Number, and the addition of thick wires to the surface of the cylinder completely disrupted the vortex shedding to the point where there was almost no dominant shedding frequency. For the smallest diameter cylinder tested, secondary dominant frequencies were observed, suggesting harmonics.
ContributorsCoote, Peter John (Author) / Takahashi, Timothy (Thesis director) / White, Daniel (Committee member) / Mechanical and Aerospace Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
The purpose of this paper is to discover what geometric characteristics of a wing and airfoil help to maximize leading edge suction through experimental testing. Three different stages of testing were conducted: a Proof of Concept, a Primary Experiment, and a Secondary Experiment. The Proof of Concept shows the effects of leading edge suction and the benefits it can posses. The Primary Experiment provided inconclusive data due to inaccuracies in the equipment. As a result, the Secondary Experiment was conducted in order to reduce the error effect as much as possible on the data. Unfortunately the Secondary Experiment provided inaccurate data as well. However, this paper does provide enough evidence to begin to question some of the long held beliefs regarding theoretical induced drag and whether it is true under all circumstances, or if it is only a good approximation for airfoils with full leading-edge suction effects.
ContributorsMorrow, Martin (Author) / Takahashi, Timothy (Thesis director) / Middleton, James (Committee member) / School for the Engineering of Matter, Transport, and Energy (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
Social media is an industry that is rapidly growing and is affecting our society, our health, and our social environments. Emerging research suggests that Social Media has been linked to Poor Body Image, Cyberbullying, Depression, Internet Addiction, and Loneliness among other things. This paper looks at the research and discusses the designer's role in the matter. Is it possible that poor design is the cause of these problems? Can design solve these problems? Are there ethical standards that digital product designers in particular can abide by?
ContributorsDavis, Nicole Angela (Author) / Sanft, Alfred (Thesis director) / Heywood, William (Committee member) / Barrett, The Honors College (Contributor) / The Design School (Contributor)
Created2014-05
Description
Mental illness has always been a stark fact of life, whether it affects people directly or indirectly. More and more research is now showing that mental illness is becoming increasingly more widespread in the U.S. This poses a serious problem to our society in terms of treatment of mental illness, as well as the costs that are involved with treating those who are affected with different disorders. According to the CDC's (Centers for Disease Control and Prevention) Autism and Developmental Disabilities Monitoring (ADDM) Network, about 1 in 68 children have been identified with autism spectrum disorder (ASD). A large number of these children are given psychotropic medications when there is no real proof of their efficacy. Our children are our society's future, so how can we aide parents of these young children to ultimately benefit their future? As a result of my research in the gut-brain connection, I have developed an application called Portal. Portal will serve the parents of children with autism in assisting with their daily lives and teaching them about the most up to date research. This application will work in conjunction with thesis material developed in the Visual Communication Design program to create a well-rounded approach to incorporating knowledge of the gut-brain connection in everyday life. Portal will have a variety of capabilities including that of autism related news, diet plans, schedules, community resources, and medication planning. There will be a daily tip or reminder to incorporate knowledge of the gut-brain connection in daily life. This can be something as simple as a reminder to eat vegetables to a fact about the research. The main goal of Portal is to assist parents in adapting to a lifestyle with ASD easier and healthier for both parents and children alike.
ContributorsChen, Cynthia Yue (Author) / Sanft, Alfred (Thesis director) / Heywood, William (Committee member) / Barrett, The Honors College (Contributor) / The Design School (Contributor)
Created2014-05
Description
A model has been developed to modify Euler-Bernoulli beam theory for wooden beams, using visible properties of wood knot-defects. Treating knots in a beam as a system of two ellipses that change the local bending stiffness has been shown to improve the fit of a theoretical beam displacement function to edge-line deflection data extracted from digital imagery of experimentally loaded beams. In addition, an Ellipse Logistic Model (ELM) has been proposed, using L1-regularized logistic regression, to predict the impact of a knot on the displacement of a beam. By classifying a knot as severely positive or negative, vs. mildly positive or negative, ELM can classify knots that lead to large changes to beam deflection, while not over-emphasizing knots that may not be a problem. Using ELM with a regression-fit Young's Modulus on three-point bending of Douglass Fir, it is possible estimate the effects a knot will have on the shape of the resulting displacement curve.
ContributorsSexton, Thurston Bryant (Author) / Takahashi, Timothy (Thesis director) / Jones, Donald (Committee member) / Barrett, The Honors College (Contributor) / Mechanical and Aerospace Engineering Program (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / School of Human Evolution and Social Change (Contributor)
Created2015-05
Description
The thesis is an investigation on current regulations of commercial aircraft landing and take-off procedures and an analysis of potential weaknesses within the regulatory system for commercial aerospace. To determine such flaws, an area of worse-case scenarios with regard to the aforementioned flight operations was researched. The events selected to best-depict these scenarios where incidents of aircraft overrunning the runway, referred to as runway excursions. A case-study conducted of 44 federal investigations of runway excursions produced data indicating four influential factors within these incidents: weather, pilot error, instrument malfunction, and runway condition. Upon examination, all but pilot error appeared to have federal enforcement to diminish the occurrence of future incidents. This is a direct result of the broad possibilities that make up this factor. The study then searched for a consistent fault within the incidents with the results indicating an indirect relationship of thrust reversers, a technique utilized by pilots to provide additional braking, to these excursions. In cases of thrust reverser failure, pilots' over-reliance on the system lead to time being lost from the confusion produced by the malfunction, ultimately resulting in several different runway excursions. The legal implication with the situation is that current regulations are ambiguous on the subject of thrust reversers and thus do not properly model the usage of the technique. Thus, to observe the scope of danger this ambiguity presents to the industry, the relationship of the technique to commercial aerospace needed to be determined. Interviews were set-up with former commercial pilots to gather data related to the flight crew perspective. This data indicated that thrust reversers were actively utilized by pilots within the industry for landing operations. The problem with the current regulations was revealed that the lack of details on thrust reverser reflected a failure of regulations to model current industry flight operations. To improve safety within the industry, new data related to thrust reverser deployment must be developed and enforced to determine appropriate windows to utilize the technique, thus decreasing time lost in confusion that results from thrust reversers malfunction. Future work would be based on producing simulations to determine said data as well as proposing the policy suggestions produced by this thesis.
ContributorsCreighton, Andrew John (Author) / Takahashi, Timothy (Thesis director) / Marchant, Gary (Committee member) / Kimberly, Jimmy (Committee member) / Barrett, The Honors College (Contributor) / Mechanical and Aerospace Engineering Program (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / School of Politics and Global Studies (Contributor)
Created2014-05
Description
This study aims to showcase the results of a quadrotor model and the mathematical techniques used to arrive at the proposed design. Multicopters have made an explosive appearance in recent years by the controls engineering community because of their unique flight performance capabilities and potential for autonomy. The ultimate goal of this research is to design a robust control system that guides and tracks the quadrotor's trajectory, while responding to outside disturbances and obstacles that will realistically be encountered during flight. The first step is to accurately identify the physical system and attempt to replicate its behavior with a simulation that mimics the system's dynamics. This becomes quite a complex problem in itself because many realistic systems do not abide by simple, linear mathematical models, but rather nonlinear equations that are difficult to predict and are often numerically unstable. This paper explores the equations and assumptions used to create a model that attempts to match roll and pitch data collected from multiple test flights. This is done primarily in the frequency domain to match natural frequency locations, which can then be manipulated judiciously by altering certain parameters.
ContributorsDuensing, Jared Christopher (Author) / Takahashi, Timothy (Thesis director) / Garrett, Frederick (Committee member) / Barrett, The Honors College (Contributor) / Mechanical and Aerospace Engineering Program (Contributor)
Created2014-05