Service Learning Commons^™

An Examination Of Grid Stability As It Relates To The Increased Integration Of Inverter-Based Resources, Daniel Voss

Electrical Engineering Undergraduate Honors Theses

There is currently a growing interest in increasing the amount of renewable energy resources connected to the bulk electric system (BES) that stems from various environmental, political, and social concerns. However, the differences between conventional generation resources and inverter-based resources (IBR)—namely wind and solar—pose new issues that make this increased integration a larger problem. In other studies, the increased penetration of renewable energy resources has resulted in weak-grid systems that are more susceptible to collapse. This comes as a result from the inability for IBRs to effectively provide enough reactive power, an effect especially apparent during fault conditions, which the …

Determinants Of Female Bargaining Power In Northern Mozambican Households, Sara Marilyn Gardner

Agricultural Economics and Agribusiness Undergraduate Honors Theses

Melinda Gates stated, “If you search for poverty, you will find women who don’t have power. If you explore prosperity, you will find women who do have power and use it.” Throughout Sub-Saharan Africa, women are expected to perform disproportional amounts of labor but are often ignored in household decision-making regarding social and economic matters. The United Nations Development Program (UNDP) states that women in Mozambique are highly disadvantaged, relative to men, due to low levels of education, maternal health risks, restricted economic prospects, and cultural norms. This study aims to better understand the causes of female empowerment in Northern …

Designing Cryogenic Strain Device For 2d Materials, Jake Carter

Mechanical Engineering Undergraduate Honors Theses

The Churchill lab working within the Physics Department at the University of Arkansas is working to create important quantum states including weak topological insulators (TIs) through the use of symmetry engineering and topological electronic states in two-dimensional (2D) crystals of WHM materials. Experimental results of these topological states have been obstructed due to the difficulty to perform controlled in situ strain. This project strives to create a mount to utilize a piezoelectric nanopositioner within cryostats achieving an in situ strain that creates the quantum states the lab is looking to observe. This report also examines the necessary equations to determine …

Thermal Testing And Characterization Of Nanoparticles Synthesized For Biological Treatment, Tonie Butler

Mechanical Engineering Undergraduate Honors Theses

The overall goal of this research project is to synthesize iron core, silica capped nanoparticles that, when they are exposed to a particular magnetic field, will react by increasing in temperature and emitting substantial thermal output. They will be injected into the human body for biological benefit by targeted thermal radiation. Once in the human body, ideally, they will be able to target a specific area, and then a magnetic field will be applied to induce thermal output through the process of hyperthermia. As the nanoparticles emit heat, they will mimic the natural bodily behavior seen by way of hyperthermia, …

Effects Of Retail Case Environment And Led Lighting Temperature On Color Of Ground Beef Patties, Mesa Kutz

Animal Science Undergraduate Honors Theses

The objective of this study was to explore different type of retail cases and case environments, primarily lighting, to quantify the impact on shelf life. Coarse ground 80:20 beef from a local retail establishment was acquired between 7 and 10 d from the box date and fine ground through a 9.5 mm grinder plate, and then formed into 150.25 g patties with an automatic patty forming machine. Each patty was then individually packaged in PVC-overwrap packages and randomly assigned to one of the four different treatments: open, multideck cases with 3000 K lighting (OPEN3000),open 3500 K lighting (OPEN3500),enclosed, …

Economic Feasibility Of Mixed Plastic Waste Pyrolysis Using Twin Reactor System In Northwest Arkansas, Carol Rogers, Patricia Means, Renato Gonzalez, Kaida Sheets, Hayden Townsend

Chemical Engineering Undergraduate Honors Theses

Plastic waste generation is increasing at an unsustainable rate while recycling solutions remain stagnant. As a chemical means of recycling, mixed plastic waste pyrolysis can generate synthetic oil appropriate for use as fuel in power generation from plastic waste that otherwise accumulates in landfills. With the scaling of a commercial plastic pyrolysis process in Northwest Arkansas (NWA) modeled after an operational sawdust pyrolysis unit in Huntsville, Arkansas, economic analysis resulted in 26.3% internal rate of return. Therefore, construction of a commercial mixed plastic-to-fuel pyrolysis plant is economically justified and should be pursued. To effectively implement the proposed design, NWA must …

“The Role Of Poultry On Food Insecurity In Mozambique”, Austin Heinisch

Finance Undergraduate Honors Theses

Hunger, poverty, and starvation in developing countries are some of the most prevalent challenges facing the world today but many people outside of these areas are not fully aware as to just how bad it is. In the country of Mozambique, where the following research took place, food insecurity levels are rampant, and many different groups/companies are trying to change that. Through a service-learning study abroad program in the summer of 2019, my group and I worked with the local company New Horizons to research ways in which poultry production for both the company and their rural out growers could …

How Has Covid-19 Affected Financial Gains Of Big-Tech Companies?, Erin Flanigen

Finance Undergraduate Honors Theses

This study investigates the impact of the COVID-19 pandemic on the financial returns received by Big-Tech companies in order to predict future financial returns and related business activities. The main objectives of this paper are to delineate business models and financial statements of Big-Tech companies prior to and during the COVID-19 pandemic, present ample, relevant economic information regarding COVID-19, and encompass the effects of COVID-19 on global economies. This study then predicts the future economic effects of COVID-19 on Big-Tech companies. The selected Big-Tech companies included in this study are Facebook, Alphabet (Google), Apple, Microsoft, and Amazon; each company saw …

The Effects Of Common Stressors On Poultry Production: A Case Study In Northern Mozambique, Grace Lehfeldt

Finance Undergraduate Honors Theses

Chicken is one of the main proteins that feeds the world. For centuries, the human race has relied on chickens to eat. Therefore, as food science becomes more relevant, the way that chickens are raised has become a science. However, this is not true in every part of the world. In Mozambique the process for raising chickens for consumption is not the same as it would be in America. This is a study of two specific “stressors” (feed and temperature) and how they impacted chicken growth and development on a live production poultry farm in Northern Mozambique. In addition, it …

Decision Making Within An Nfl Context Using Multiple Objective Decision Analysis, Lawson Porter

Industrial Engineering Undergraduate Honors Theses

The National Football League (NFL) is the most popular sports league in the world, with millions of viewers every game and billions of dollars generated every season. Statistics are an important part of an NFL team’s business operating model and contribute greatly towards their decision making. Every season, general managers try to sign players that give the team the highest probability of winning games throughout the year. There are many factors that go into this decision, including the amount of money the team has to spend and the value that available players can bring to a team. Teams must abide …

Covid-19: An Optimal Strategy To Resume Life With Safety And Economic Prosperity, Skyler Tate

Finance Undergraduate Honors Theses

The coronavirus pandemic has hit the world hard since the beginning of 2020, and the United States has certainly felt a negative impact. Many important aspects of life have been greatly altered by the pandemic, and this has resulted in a hindered economy. The purpose of this project was to determine if there is an optimal strategy with respect to policy and the economy that the United States could implement in order to mitigate the coronavirus. In order to determine this, I evaluated multiple aspects of the disease through a literature review. Upon review, I conducted a survey and performed …

Can Small-Scale Poultry Initiatives Alleviate Food Insecurity And Increase Empowerment For Women In Economically Disadvantaged Areas?, Patrick Daniels

Accounting Undergraduate Honors Theses

In the summer of 2019, I, along with 8 other students from the University of Arkansas departed the United States for the Central American country of Belize. Despite our limited knowledge of what Belize held in store for us, we were enthusiastic about the coming months. While we had different projects, we all set out with the same universal question in mind. How can we use the knowledge we have gained through education to make a positive impact on the lives of people living in an impoverished town? Some of the members of our team worked alongside local businesses to …

Effects Of Covid: Non-Essential V Essential Industries, William Shipley

Accounting Undergraduate Honors Theses

As the year 2020 has finally come to an end and the end of Covid is in near sight, it is important for us to look back at how it has shaped the world from an economic perspective. Ever since the closure of most of the U.S. and global economy in March 2020 it has made us deem which companies we consider essential and non-essential. This major decision came as all governments across the world had to close the operations of as many companies they could to limit the spread of the covid-19 virus. This major choice of determining what …

The Essential Characteristics Of An Effective Hospice And Palliative Care Nurse, Alexis Doyle

The Eleanor Mann School of Nursing Undergraduate Honors Theses

No abstract provided.

Are Small Businesses The Framework For A Successful U.S. Economy?, Carson Clevenger

Accounting Undergraduate Honors Theses

This thesis will investigate the impact of small businesses on the United States’ economy. I will be assessing several impact areas including gross domestic product, employment, and local economy contribution. This thesis will cover a study from the time periods of 1998-2014 of the gross domestic product and employment levels and will use numbers from the years of 2018- present for other impact areas. Furthermore, I will be analyzing certain sectors of the economy, comparing small businesses contribution to corporate contribution, in order to discuss if small businesses are necessary for our country’s successful economy.

Performance And Economics Of Solar Inverters And Module Level Power Electronics In A 1 Mw Photovoltaic System, Maxwell Criswell

Biological and Agricultural Engineering Undergraduate Honors Theses

Photovoltaic solar panels convert sunlight to electricity in the form of direct current; therefore, a necessary component of every photovoltaic system is an inverter to convert the electricity to usable alternating current. There are various commercially available inverter technologies manufactured today such as microinverters, string inverters, and central inverters, as well as module level power electronic devices such as DC optimizers that are capable of improving system performance in string and central inverter systems. This thesis compares the performance and economics of five different inverter and module level power electronic systems through model simulation using Helioscope software. The five alternatives …

Design And Control Of A Peristaltic Pump To Simulate Left Atrial Pressure In A Conductive Silicone Model, Jeremy Collins

Mechanical Engineering Undergraduate Honors Theses

According to the CDC, atrial fibrillation is responsible for more than 454,000 hospitalizations and approximately 158,000 deaths per year. A common treatment for atrial fibrillation is catheter ablation, a process in which a long flexible tube is guided through the femoral artery and to the source of arrhythmia in the heart, where it measures the electrical potential at various locations and converts problematic heart tissue to scar tissue via ablation. This paper details the design and control of a low-cost ($400) peristaltic pump system using repetitive control to replicate blood pressure in the left atrium in a conductive silicone model …

Development Of An Integrated Salt Cartridge-Reverse Electrodialysis (Red) Device To Increase Electrolyte Concentrations Of Human Blood Flow To Power Biomedical Devices, Caroline Campbell

Chemical Engineering Undergraduate Honors Theses

Emerging technologies in nanotechnology and biomedical sciences have led to an increase in biomedical implantable devices including cardiac pacemakers, artificial organs, drug pumps, and sensors. These devices require continuous stable and reliable power to operate, which creates the demand for the need to find a safe, reliable, and stable power source. A promising avenue for a power source for these devices is a miniaturized reverse electrodialysis (RED) biopower cell design that utilizes the salinity differences between bloodstreams that flow inside the human body. Initial results of the RED system demonstrate that higher gradient salinity differences between streams lead to a …

A Financial And Environmental Impact Analysis On The Implementation Of Electric Vehicles For The Washington County, Arkansas Sheriff's Department, Lauren Chadwick

Supply Chain Management Undergraduate Honors Theses

Since the Biden administration has provided implication that the hope is for state and local governments to adopt net zero emission federal vehicles, it is important to see how this might work for a county in a rural area of Arkansas. Applying this real possibility to the local Sheriff’s department will aim to create a case either for the implementation of electric vehicles or prove to show that it is not a feasible solution.

This research will compare the financial advantages and disadvantages of this order along with the possible environmental impact that this solution can attribute to. Focusing on …

Brave New World Reboot: Technology’S Role In Consumer Manipulation And Implications For Privacy And Transparency, Allie Mertensotto

Marketing Undergraduate Honors Theses

Most consumers are aware that our data is being obtained and collected through the use of our devices we keep in our homes or even on our person throughout the day. But, it is understated how much data is being collected. Conversations you have with your peers – in a close proximity of a device – are being used to tailor advertising. The advertisements you receive on your devices are uniquely catered to your individual person, due to the fact it consistently uses our data to produce efficient and personal ads. On the flip side, our government is also tapping …

The Bridge To Closing The Green Gap, Samantha Rife

Marketing Undergraduate Honors Theses

In today’s society, we have seen the theme of green consciousness and sustainability become more prevalent as the years pass by. Even as this concept seems to increase in consumer engagement there is not a proportional increase in consumer behavior. This is what is referred to as the gap between green consciousness and green consumerism. Many believe the root of this issue can be solved by increasing regulations. However, I believe this gap can be narrowed by using brands to shift consumers behaviors through their message. The main question that I want to focus in on is, “Can a brand …

Understanding The Role Of Hospice Care: Reflections From A Service-Learning Project, Avery Mccutcheon

The Eleanor Mann School of Nursing Undergraduate Honors Theses

There is little known about the part end-of-life care plays in patient care. This paper examines the role of end-of-life care in the care of a dying patient and consists of findings from a service-learning project with Circle of Life hospice. To be able to effectively care for those in the end stages of life, healthcare professionals must turn away from the curative aspects of medicine, to treating symptoms and improving quality of whatever life remains for the patient. In order to normalize EOL Care and consequently make it more accessible, we must educate our healthcare practitioners regarding the benefits …

Combatting Inefficient Food Waste In Nwa With Food Loops, Davis Ehlers

Economics Undergraduate Honors Theses

It is no longer a speculation that the actions of the human race have had detrimental impacts on the environment. As consumers become increasingly aware of this fact- and the fact that many of the issues are caused by bad business and environmental management, many individuals are wondering what they can do about it. This growing area of demand is where many businesses have begun to take on the challenge of being profitable while benefiting the environment at the same time, and some have even found ways to create a profit by engaging in activities that directly benefit the environment. …

Understanding Trauma To Create Effective Trauma Informed Schools, Lauren Murphy

Curriculum and Instruction Undergraduate Honors Theses

Exposure to early trauma can negatively affect a child's learning, behavior, and social emotional well being. Trauma in children can change executive functions in the brain and other neurobiological developmental changes can alter their success rate academically and socially. With the changes in the brain, it can have prolonged effects such as diminishing of brain nerve cells, hormone levels, immune systems, and epigenetic changes. Without proper interventions, these changes can lead to a higher risk of developing health conditions and mental illnesses. Through research presented in the article, is it vital for early interventions to prevent the furthering effects of …

A Case Study Of Four Districts' Procedures For Identifying And Serving Culturally, Linguistically, And Economically Diverse Gifted And Talented Students In One State, Mackenzie Anderson

Curriculum and Instruction Undergraduate Honors Theses

The underrepresentation of culturally, linguistically, and economically diverse students is a problem historically researched in gifted and talented programs. This problem largely comes from the way districts identify for giftedness as well as the programming for gifted students. Traditional methods of identification often largely exclude students due to racial or ethnic bias and harsh cut-off scores on tests. This study investigated the current identification procedures of four districts in one state. Additionally, the study addressed programming and how these districts specifically targeted underserved populations within their district. Data were collected through interviews with four District Coordinators from school districts with …

Americanization Of Islamic Cultural Design: Erasure, Orientalism/Exoticism, And Americanization, Peter L. Stanley

Landscape Architecture Undergraduate Honors Theses

Islam arrived in North America primarily through the importation of Muslim African slaves. Subsequent suppression of the slaves, and by extension their religion and places of worship, generated a lack of understanding and misunderstanding about Islam. Over time, this misunderstanding evolved into xenophobic and orientalist representations of the religion. This Capstone project researches Islam’s roots in colonial America through the period before the Columbian Exposition of 1893, and its evolution after the Columbian Exposition, with defining time periods expressed as Erasure, Orientalism/Exoticism, and Americanization. With the help of cultural trust organizations such as the Aga Khan Foundation, the contemporary Americanization …

Ventilation And Recirculation Airway Design For An Autonomous, Climate Controlled, Hydroponic Demonstration Unit, Nicholas Cross

Biological and Agricultural Engineering Undergraduate Honors Theses

For this Honors Thesis project, I designed and fabricated a ventilation and recirculation airway sub-system prototype for a hydroponic demonstration unit to be used as an educational demonstration for prospective students, illustrating the capabilities of biological engineers. This thesis focuses on the design of an autonomous air system that toggles between ventilation and recirculation modes based upon sensor output. In the literature review I discuss how ventilation can be used to achieve a targeted climate, the benefits of hands-on projects for education, and the optimum parameters for growing herbs in a hydroponic system.

In the design and fabrication process, every …

Utilizing Repurposed Denim To Create Apparel For Those With Cerebral Palsy, Monique Rodriguez

Apparel Merchandising and Product Development Undergraduate Honors Theses

Cerebral Palsy (CP) is the most common motor disability in children. In the U.S alone one million children and adults live with a diagnosis of cerebral palsy. Due to the increasing life expectancy of individuals with CP, the number of adults with this disorder is increasing, thus their medical and social care needs are changing (Moreno-De-Luca et al., 2012). For years children and adults who live with CP struggle in finding clothing that works for them and their needs. Currently the market for adaptable clothing is small. For people with CP, the lack of adaptive clothing creates large barriers whether …

Speech Processing In Computer Vision Applications, Nicholas Waterworth

Computer Science and Computer Engineering Undergraduate Honors Theses

Deep learning has been recently proven to be a viable asset in determining features in the field of Speech Analysis. Deep learning methods like Convolutional Neural Networks facilitate the expansion of specific feature information in waveforms, allowing networks to create more feature dense representations of data. Our work attempts to address the problem of re-creating a face given a speaker's voice and speaker identification using deep learning methods. In this work, we first review the fundamental background in speech processing and its related applications. Then we introduce novel deep learning-based methods to speech feature analysis. Finally, we will present our …

Countermeasures For Pedestrian-Involved Accidents On Interstate-Highways, Anna C. Hunter

Civil Engineering Undergraduate Honors Theses

Pedestrian access to the Interstate is prohibited, but many pedestrian-involved accidents still occur on the Interstate in the United States. This project is a case study of West Memphis, Arkansas, which has the second highest occurrence of pedestrian-involved accidents on the Interstate in Arkansas. The study site location includes a segment of Interstate I-40 which is at- grade. The surrounding area contains several different land-uses, which is believed to be the primary generator of these accidents. The goal of this project is to determine the primary causes of these accidents and determine potential countermeasures to reduce the crash rate for …