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- Creators: School of Mathematical and Statistical Sciences
- Creators: Department of Finance
- Member of: Barrett, The Honors College Thesis/Creative Project Collection
- Resource Type: Text
Description
A defense-by-randomization framework is proposed as an effective defense mechanism against different types of adversarial attacks on neural networks. Experiments were conducted by selecting a combination of differently constructed image classification neural networks to observe which combinations applied to this framework were most effective in maximizing classification accuracy. Furthermore, the reasons why particular combinations were more effective than others is explored.
ContributorsMazboudi, Yassine Ahmad (Author) / Yang, Yezhou (Thesis director) / Ren, Yi (Committee member) / School of Mathematical and Statistical Sciences (Contributor) / Economics Program in CLAS (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
The oxygen sensitivity of hydrogenase is a large barrier in maximizing the efficiency of algal hydrogen production, despite recent efforts aimed at rewiring photosynthesis. This project focuses on the role of photosystem II (PSII) in extended hydrogen production by cells expressing the PSI-HydA1 chimera, with the goal of optimizing continuous production of photobiohydrogen in the green alga, Chlamydomonas reinhardtii. Experiments utilizing an artificial PSII electron
Therefore, it can be concluded that downstream processes are limiting the electron flow to the hydrogenase. It was also shown that the use of a PSII inhibitor, 3-(3,4-dichlorophenyl)-1,1- dimethylurea (DCMU), at sub-saturating concentrations under light exposure during growth temporarily improves the duration of the H2 evolution phase. The maximal hydrogen production rate was found to be approximately 32 nmol h-1 (µg Chl)-1. Although downregulation of PSII activity with DCMU improves the long-term hydrogen production, future experiments must be focused on improving oxygen tolerance of the hydrogenase as a means for higher hydrogen yields.
Therefore, it can be concluded that downstream processes are limiting the electron flow to the hydrogenase. It was also shown that the use of a PSII inhibitor, 3-(3,4-dichlorophenyl)-1,1- dimethylurea (DCMU), at sub-saturating concentrations under light exposure during growth temporarily improves the duration of the H2 evolution phase. The maximal hydrogen production rate was found to be approximately 32 nmol h-1 (µg Chl)-1. Although downregulation of PSII activity with DCMU improves the long-term hydrogen production, future experiments must be focused on improving oxygen tolerance of the hydrogenase as a means for higher hydrogen yields.
ContributorsO'Boyle, Taryn Reilly (Author) / Redding, Kevin (Thesis director) / Ghirlanda, Giovanna (Committee member) / Vermaas, Willem (Committee member) / School of Mathematical and Statistical Sciences (Contributor) / School of Life Sciences (Contributor) / School of Molecular Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
The Solis Lofts Development Proposal thesis consisted of a full prospective development
within the City of Tempe. Our team conducted a vast amount of market research to determine
what sector of the market would provide the best return on investment. We organized meetings
with local brokers from Cushman & Wakefield, CBRE, JLL, and Colliers International to learn
more about the current market environment. Also, we organized meetings with local developers,
architects, and lenders. These included Merit Partners, Sunbelt Holdings, MODUS Development,
Catclar Investments, 5Visual, Butler Design Group, and Colonial Capital. Through the research
we conducted we were able to successfully determine that a multifamily development within the
City of Tempe would be a great way to enter the Commercial Real Estate Development field.
Our project consisted of the full land acquisition process, architectural site plan review, financial
analysis, and completion of the product.
within the City of Tempe. Our team conducted a vast amount of market research to determine
what sector of the market would provide the best return on investment. We organized meetings
with local brokers from Cushman & Wakefield, CBRE, JLL, and Colliers International to learn
more about the current market environment. Also, we organized meetings with local developers,
architects, and lenders. These included Merit Partners, Sunbelt Holdings, MODUS Development,
Catclar Investments, 5Visual, Butler Design Group, and Colonial Capital. Through the research
we conducted we were able to successfully determine that a multifamily development within the
City of Tempe would be a great way to enter the Commercial Real Estate Development field.
Our project consisted of the full land acquisition process, architectural site plan review, financial
analysis, and completion of the product.
ContributorsZwillinger, Mason William (Co-author) / Butura, Alex (Co-author) / Liu, Braden (Co-author) / Farnsworth, Yzaac (Co-author) / Sadusky, Brian (Thesis director) / Avrhami, Mathew (Committee member) / Department of Finance (Contributor) / Dean, W.P. Carey School of Business (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
The Solis Lofts Development Proposal thesis consisted of a full prospective development within the City of Tempe. Our team conducted a vast amount of market research to determine what sector of the market would provide the best return on investment. We organized meetings with local brokers from Cushman & Wakefield, CBRE, JLL, and Colliers International to learn more about the current market environment. Also, we organized meetings with local developers, architects, and lenders. These included Merit Partners, Sunbelt Holdings, MODUS Development, Catclar Investments, 5Visual, Butler Design Group, and Colonial Capital. Through the research we conducted we were able to successfully determine that a multifamily development within the City of Tempe would be a great way to enter the Commercial Real Estate Development field. Our project consisted of the full land acquisition process, architectural site plan review, financial analysis, and completion of the product.
ContributorsFarnsworth, Yzaac (Co-author) / Liu, Braden (Co-author) / Zwillinger, Mason (Co-author) / Butura, Alex (Co-author) / Sadusky, Brian (Thesis director) / Avrhami, Mathew (Committee member) / Department of Finance (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
The Solis Lofts Development Proposal thesis consisted of a full prospective development within the City of Tempe. Our team conducted a vast amount of market research to determine what sector of the market would provide the best return on investment. We organized meetings with local brokers from Cushman & Wakefield, CBRE, JLL, and Colliers International to learn more about the current market environment. Also, we organized meetings with local developers, architects, and lenders. These included Merit Partners, Sunbelt Holdings, MODUS Development, Catclar Investments, 5Visual, Butler Design Group, and Colonial Capital. Through the research we conducted we were able to successfully determine that a multifamily development within the City of Tempe would be a great way to enter the Commercial Real Estate Development field. Our project consisted of the full land acquisition process, architectural site plan review, financial analysis, and completion of the product.
ContributorsLiu, Braden John (Co-author) / Butura, Alexander (Co-author) / Zwillinger, Mason (Co-author) / Farnsworth, Yzaac (Co-author) / Sadusky, Brian (Thesis director) / Avrhami, Matthew (Committee member) / Department of Finance (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
This project attempts to create an accurate numerical simulation of the eastern limb of the HH 901 jet in the Mystic Mountain formation located in the Carina Nebula. Using a 3rd order accurate WENO numerical scheme in space, and a 3rd order accurate RK method in time, the temperature, density, radiative cooling, length, and average jet velocity of this astrophysical phenomenon were simulated based on observations made by Hubble Space Telescope and the work of Reiter and Smith (2013) and (2014). The results of this simulation are displayed in three figures, one each for temperature, radiative cooling, and density, which show a jet displaying morphology consistent with that of the HH 901 eastern limb without adjustment for stellar wind. Also discussed are the effects of different jet speeds, initial conditions, and pulse parameters on the shape and behavior of the simulated jets, as well as continuing work to be done on the simulation to enhance its accuracy and usefulness.
ContributorsKreitzer, Kyle (Author) / Gardner, Carl (Thesis director) / Jones, Jeremiah (Committee member) / School of Mathematical and Statistical Sciences (Contributor) / Mechanical and Aerospace Engineering Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
In baseball, a starting pitcher has historically been a more durable pitcher capable of lasting long into games without tiring. For the entire history of Major League Baseball, these pitchers have been expected to last 6 innings or more into a game before being replaced. However, with the advances in statistics and sabermetrics and their gradual acceptance by professional coaches, the role of the starting pitcher is beginning to change. Teams are experimenting with having starters being replaced quicker, challenging the traditional role of the starting pitcher. The goal of this study is to determine if there is an exact point at which a team would benefit from replacing a starting or relief pitcher with another pitcher using statistical analyses. We will use logistic stepwise regression to predict the likelihood of a team scoring a run if a substitution is made or not made given the current game situation.
ContributorsBuckley, Nicholas J (Author) / Samara, Marko (Thesis director) / Lanchier, Nicolas (Committee member) / School of Mathematical and Statistical Sciences (Contributor) / Department of Information Systems (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
The Arizona Fall League is a baseball league affiliated with Major League Baseball to provide further development to seven of each MLB team’s top minor league prospects. The games are played at the same stadiums as spring training in Arizona but historically draw a very low attendance in comparison. The marketing strategies currently used to promote and advertise the Arizona Fall League are not sufficient to meet the goal of increased attendance and increased profits as a result. The league currently markets its core product to the customer, meaning the actual baseball game itself along with the highly talented players, rather than the actual product provided to fans, meaning the social utility they gain from their experiences at an Arizona Fall League game along with the game. The league needs to focus mainly on two target markets: men and women ages 18-25 and families with children under 18. In order to shift the focus to the actual product, the league’s marketing staff should run promotions (alongside their current promotions) in association with local sports bars or restaurants and places that provide entertainment, such as Top Golf. They also should revamp their social media accounts to integrate a more fan-focused base for their posts, making fans feel like they are a greater part of the experience. These improvements would drive up attendance and generate more profits for the Arizona Fall League.
ContributorsMcCann, Matthew Donald (Author) / Eaton, John (Thesis director) / McIntosh, Daniel (Committee member) / Department of Finance (Contributor) / School of Accountancy (Contributor) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
Does a gender earnings gap exist in Norway and the United States? Overtime, the male to female pay gap has reduced. As jobs have become more gender neutral and industrialized, males and females have been given equal rights to work. However, despite these seemingly dramatic generalizations, the pay between females and males has not equalized. It appears that a woman still faces significant obstacles to receive the same pay and respect that her male counterpart is awarded. To understand more about the gender pay gap, we must also understand the attitudes and behaviors in the work place. Adding this perspective as well analyzing the time in which a woman might be away from work to give attention to motherhood are all factors that may contribute to the gender earnings gap. Understanding these factors assist in the efforts to achieve wage equality and reduce wage differentials between males and females. A cross cultural analysis between the United States and Norway will provide additional valuable insights. The culture and economy in Norway present a stark difference to the United States. In order to better evaluate the problems and to define solutions for the earnings gap, it is essential to analyze an economy that inherently gives many more benefits to the working class.
ContributorsPage, Karlee Ann (Author) / Shropshire, Christine (Thesis director) / Jordan, Erin (Committee member) / Dean, W.P. Carey School of Business (Contributor) / Department of Finance (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
The purpose of this thesis is to accurately simulate the surface brightness in various spectral emission lines of the HH 901 jets in the Mystic Mountain Formation of the Carina Nebula. To accomplish this goal, we gathered relevant spectral emission line data for [Fe II] 12660 Å, Hα 6563 Å, and [S II] 6720 Å to compare with Hubble Space Telescope observations of the HH 901 jets presented in Reiter et al. (2016). We derived the emissivities for these lines from the spectral synthesis code Cloudy by Ferland et al. (2017). In addition, we used WENO simulations of density, temperature, and radiative cooling to model the jet. We found that the computed surface brightness values agreed with most of the observational surface brightness values. Thus, the 3D cylindrically symmetric simulations of surface brightness using the WENO code and Cloudy spectral emission models are accurate for jets like HH 901. After detailing these agreements, we discuss the next steps for the project, like adding an external ambient wind and performing the simulations in full 3D.
ContributorsMohan, Arun (Author) / Gardner, Carl (Thesis director) / Jones, Jeremiah (Committee member) / Computer Science and Engineering Program (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05