Digital Commons Network^™

Clusters, Trends, And Choices: Feature Selection In Interactive Statistical Graphics, Dylan Le

Master's Theses

Exploratory data analysis (EDA) is a method for uncovering the structure and key characteristics of data, often through the use of statistical graphics. These visual tools can reveal patterns and trends, and their effectiveness can be enhanced through interactivity. By enabling users to filter data, zoom, and toggle visual features, interactive plots can accelerate and enrich the EDA process. This study extends a previous graphical study by incorporating an interactive framework. Using a statistical lineup protocol with two target patterns (a linear trend and a clustering trend) participants interacted with plots by toggling various aesthetic features, including cluster coloring, ellipses …

The Extraordinary In The Ordinary: Nineteenth Century Female Teachers And Their Professionalization Of An Occupation, Samantha G. Santana

Master's Theses

Women’s occupation as teachers has remained uncritically relegated to the sphere of women’s work. In reality however, early nineteenth century female teachers made clear articulations how they understood their occupations as teachers. Through their publications, autobiographies, and biographies written by former pupils, they left behind for current educators their estimations of the integral job they performed. As educators, these women maintained the paramount role of educating the nation’s next generation of citizens. This was of particular importance in the aftermath of the American Revolution when America’s children were subjected to lacking, colonial education experiments. Before and during the ensuing common …

"Great Big Beautiful Tomorrow": Disneyland, Science, And The Cultural Cold War, Emily Searson

Master's Theses

Disneyland, the popular Anaheim-based theme park in California, opened its doors during heightened Cold War tensions in 1955. In this thesis, I trace the origins of Tomorrowland, one of the five original themed lands in Disneyland that included futuristic rides and attractions to depict Walt Disney’s imagining of the year 1986. I examine Tomorrowland in particular to argue that WED Enterprises (Disneyland, Inc.’s research and development arm) and Disney’s vision of scientific progress aligned with U.S. Cold War policy goals, especially containment. Disney and WED Enterprises meticulously planned Tomorrowland with the help of notable American defense contractors, including the Monsanto …

A Decision Support System For Conference Session Selection Using Natural Language Processing, Tillman E. Erb

Master's Theses

Conference attendees are faced with selecting from hundreds to thousands of presentations and sessions in pursuit of new findings and methods relevant to their area of interest, an overwhelming amount of information from which to clearly make a decision. To address this, we developed a decision support system leveraging natural language processing (NLP) techniques such as semantic matching. By creating and matching embeddings of conference presentation abstracts and titles, the application provides improved query matching compared to keyword searching. We introduce Session Scout, a novel conference decision support system built upon a semantic retrieval framework. Session Scout is designed to …

Bandwagon Behavior In Major League Baseball, Daniel E. Erro

Master's Theses

This study investigates “bandwagon” behavior among Major League Baseball (MLB) fans by analyzing Google search interest data from 2004 to 2019. Drawing on publicly available information from Google Trends, the analysis explores how fluctuations in search activity align with team performance during both the regular season and postseason. Hierarchical linear models are used to estimate expected levels of fan interest based on team performance and market characteristics. Deviations from these expectations during the regular season are interpreted as evidence of bandwagon or anti-bandwagon behavior. A drop-off in interest following playoff elimination is also examined to capture shifts in fan attention …

Riding For The Brand: Advancing Leadership Development In The Poly Royal Rodeo Program, Jack Busch

Agricultural Education: Graduate Internship Reports

While the Poly Royal Leadership Class provides a valuable platform for student involvement in large scale event planning, the structure lacked consistency in leadership development methods, project management tools, and hands-on training simulations, resulting in uneven engagement, limited collaboration efficiency, and varied preparedness levels among student leaders and committee members.

Cryogenic Fuel Delivery System, Carter Josef, Reilly Humphreys, Joseph O'Connor, Nick Spreen

Mechanical Engineering

This project presents the design and validation of a cryogenic fuel delivery system aimed at enabling sustainable aviation through hydrogen fuel vaporization. Developed by a team of senior mechanical engineering students at Cal Poly and sponsored by Boeing, the system utilizes atmospheric air to vaporize liquid nitrogen, used as a stand-in for hydrogen, via forced convection heat exchangers, eliminating the need for engine-supplied heat and reducing parasitic loads. A feedback loop and turbine component are integrated to regulate pressure and recover energy, respectively. A benchtop prototype was built and tested to evaluate system performance, with results closely aligning with analytical …

Conversational Social Robot, Julianna M. Christopoulos, Mackenzie Goldman, Cece E. Hujanen, Jared Hunter

Mechanical Engineering

Background: Social robots are used in various settings to reduce burden on human workers and expand opportunities for people in need of assistance.

Challenge: Design a humanoid robot head and torso capable of holding conversations and interacting with a user using a LLM and motion. Conversations are limited to discussing Cal Poly resources and opportunities with visitors to the Bently Research Center on campus.

Scitechatorium, Olivia Lafferty, Yvonne Brien Miller, Colton Swinth, Savannah Pinheiro, Gage Heinze

Mechanical Engineering

Bellevue Santa-Fe Charter School (Bellevue) is a K6th grade public charter elementary school in Avila Beach, California. The primary focus at Bellevue is fostering unique learning experiences, empowering students through project-based learning, and engaging students in creative endeavors. Following these themes, the school has allocated space and funding for an on-campus science and technology museum known as the SciTechatorium. The museum is currently open during students’ lunch period, providing interactive displays on concepts in human biology, nature and wildlife, physics, and electronics. Bellevue’s K-6th grade science teacher, Christian Strauli, and Bellevue parent volunteers are primarily responsible for the museum’s upkeep …

3d Printed Fixed Wing Aircraft Competition, Sidney E. Long, Mitchell Heise, Jack Bride, Daniel Salinas

Mechanical Engineering

Cal State LA and Arlington University, Texas are hosting the same 3D printed, fixed wing aircraft competition for 2025. Cal Poly requires a competitive plane that can adhere to each rule and be piloted remotely to achieve the longest time in the air. The plane must utilize solely 3D printing technology for the wings, body, and all other structures. The only off-the-shelf components can be the motor and electronics, as well as mechanical devices such as hinges.

Combustion Liner Optimization, William Weeks, Daniel Reed, Isaac Trull

Mechanical Engineering

Solar Turbines provides gas power generation solutions, focusing on gas turbine engines and compressors. The Gas Turbine Products Engineering (GTPE) team at Solar Turbines needs a way to efficiently and cost-effectively maintain the combustion liner of the Taurus model gas turbine at or below the cold-side temperature target. The current system involves a manufacturing process with ergonomic concerns and uncertain cooling effectiveness.

To address this, our team proposed a new combustion liner system featuring impingement cooling. We provided Solar Turbines with heat transfer models of both the existing and proposed designs, demonstrating improved cooling performance. Additionally, a prototype of the …

Tread: A Digital Solution For Sustainable Travel, Audrey Claire Talmi, Amy Besford

Graphic Communication

This senior project aims to create an eco-tourism website that promotes sustainable and ethical travel by connecting users with local businesses, communities, and culturally respectful experiences. As mainstream tourism increasingly contributes to environmental degradation and social displacement, this platform will provide responsible alternatives by avoiding over-touristed destinations and favoring underrepresented areas. It will allow users to book flights, lodging, and activities while educating them on the consequences of over-tourism. Through a combination of intuitive user interface, thoughtful user experience, engaging visual design, and curated educational content, the website will serve not only as a booking platform but as a digital …

A Digital Dive: Redesigning The Cabrillo High School Aquarium Website, Jacob V. Cacho

Graphic Communication

Tucked away on the Central Coast in Lompoc, you’ll find the Cabrillo High School (CHS) Aquarium. Started in 1986, the CHS Aquarium is the only high school aquarium of its kind in the nation run entirely by high school students. This 10,000+ square foot aquarium serves an underserved community at a Title I school, where students manage all aspects of animal care, nutrition, breeding, educational curriculum development, and visitor tours.

This program is truly one-of-a-kind and deserves the spotlight for just how unique it is. As a CHS graduate, I felt the current website lacked in many areas and could …

Ray Collection: Forging A New Fashion Genre, Olivia R. Cooper

Graphic Communication

This senior project addresses a gap in the fashion industry by creating a new genre through a unique collection and comprehensive branding. The "RAY" collection draws inspiration from the designer's artistic roots and is a deeply personal homage to influential female artists like Frida Kahlo, Louise Bourgeois, and Leonora Carrington, whose works have inspired the designer's creative journey. Each piece in the collection draws direct inspiration from these artists, reflecting the creator's vision and self-expression, a key element of the streetwear genre incorporated into the designs.

The project also heavily emphasizes fashion branding, encompassing a logo, brand identity, social and …

Digitalizing Organization: Creating A Digital And Customizable Bullet Journal, Ashley Ho

Graphic Communication

This project presents a digital, customizable bullet journal designed to improve organization, creativity, and accessibility. Using a user-centered design approach and principles of design thinking, the planner addresses common barriers to traditional journaling, such as time-consuming setup and lack of flexibility. Based on survey feedback, the final product includes a 2026 calendar, habit trackers, budgeting tools, and customizable weekly spreads in a print-friendly PDF format. The project highlights how digital tools can enhance personal productivity and well-being, with broader applications in UX/UI design and digital wellness solutions.

Project Cheetah: Narrative Website Design For The Cheetah, A Record-Breaking Human-Powered Vehicle, Natalie Olivia Garbarino

Graphic Communication

The Cheetah is a 1992 world speed record-breaking bike designed and built by three mechanical engineering graduates from UC Berkeley: Jon Garbarino, James Osborn, and Kevin Frantz. After years on display at the Tech Interactive in San Jose, the bike is returning home to Berkeley’s engineering school for public display. In accompaniment of the exhibit, the Cheetah engineering team requested printed signage with a QR access to a comprehensive website detailing the Cheetah narrative. There is an abundance of media from the engineering process — extensive photographic documentation, substantial archival documents, reputable external media coverage, and an in-progress docuseries — …

Smart Choices, Strong Voices: Empowering The Next Generation, Alexandra J. Bruce-Valverde

Graphic Communication

Smart Choices, Strong Voices (SCSV) is a financial and voter education pamphlet for students that is easy to understand and unbiased and helps to create a more financially and politically literate generation. The expectation for young adults in today's current world is for us to be able to make well-informed decisions about finances and politics. However, when we are constantly bombarded by misinformation and lack easy access to reliable, accessible education in these topics, these expectations become unreasonable. Exposure to this misinformation affects how we show up for ourselves and our democracy. As our world becomes more and more politically …

Aurela App Mockup – Discreet Drug Detection Wearable, Piper Ferch

Graphic Communication

Aurela is a discreet drug detection technology jewelry brand, and the wearable will connect to the app to tell users if their drink is safe when they test it with the jewelry. Drug-facilitated sexual assault is a deep rooted societal issue, and Aurela works to empower customer’s control of their safety. The brand was created by my beach volleyball teammate Addie Bounds, and my project aims to show how the app would provide fast, accessible information to users, in an easy-to-read and streamlined format. It will include a map feature, that displays ratings of local businesses, likely bars, given by …

New Tsg Processes: Improving Workflow Efficiency Through Desktop Ux/Ui Design, Evelyn Guzman Ramos

Graphic Communication

This senior project is focused on improving the equipment handling processes for the Technical Service Group (TSG) in the Electrical Engineering Department at Cal Poly through the design and development of a user-friendly desktop application. The goal is to create an intuitive and efficient interface tailored to the needs of student staff and faculty, reducing the time and complexity associated with current manual and outdated systems. The design will prioritize usability, accessibility, and task efficiency, key pillars in User Experience (UX) and User Interface (UI) design for desktop environments (Nielsen & Budiu, 2012). This user-centered approach emphasizes desktop-specific interaction patterns …

Keepsake: A Social Media And Management App For Collectors, Violet Faust

Graphic Communication

For my senior project, I aim to target a nearly nonexistent digital market in social media applications for collectors by designing an app meant for collectors to buy, sell, trade, and connect over similar interests. The plan for this project is to prototype and design an app for a community of people who do not currently have a dedicated space to connect. This project provides an opportunity to innovate through design and fill in the current gap existing in social media applications.

Bai: Recipes From A Cambodian-American Home Kitchen, Amanda Wahl

Graphic Communication

Bai, meaning “rice” in Khmer, is a cookbook that highlights the cultural and personal significance of Cambodian comfort food. Created in response to the underrepresentation of Cambodian cuisine and the inaccessibility of traditional ingredients in towns like San Luis Obispo, this cookbook offers simple, beginner-friendly recipes that celebrate food as a bridge to heritage. Featuring original photography and thoughtful design, Bai explores how cookbooks function as both practical tools and cultural artifacts. This project contributes to the broader dialogue on inclusive, culturally responsive design and the role of graphic communication in preserving and sharing marginalized culinary traditions.

Electroporation Protocol Development For Cal Poly Cell Therapy Laboratory Courses, Gabrielle Melamed

Biomedical Engineering

Cancer is a heterogeneous disease caused by unchecked cell proliferation. The disease contributed to 9.7 million deaths worldwide in 2022, with hematological malignancies (leukemias, lymphomas, and myelomas) accounting for over 1.4 million deaths in the United States from 1999 to 2020. This thesis focuses on the treatment of these cancers, with an emphasis on non-Hodgkin lymphomas (NHLs). R-CHOP (Rituximab-Cyclophosphamide, Doxorubicin hydrochloride, Oncovin/Vincristine, and Prednisone) is the standard of care first-line treatment for diffuse large B-cell lymphoma (DLBCL), the most common subtype of NHL, and encompasses a mixture of chemotherapy, immunotherapy, and corticosteroids. The R-CHOP regimen cures 50% to 70% patients, …

Single-Sided Hearing Assistance Application, Harryson Nguyen, Jp Haratani

Electrical Engineering

The product is a hearing assistance smartphone application which aims to improve the quality of life of people with single-sided hearing loss/deafness by providing them with a cheaper and more reliable alternative to medically-prescribed hearing aids. Due to development setbacks, the product instead uses open-ear earbuds. Since the earbuds are not directly inserted into the user’s ear canals, they will not obstruct the hearing of the user’s non-deaf ear, and the user will still be able to hear the sounds that come from their non-deaf side. Some users may find that Bluetooth earbuds can be quite expensive, but are ultimately …

Piezoelectric Actuator Driver System, Daniel Hoefer

Electrical Engineering

This work presents the design, fabrication, and testing of a high-voltage piezoelectric actuator driver system purposed for integration into defense and aerospace precision motion control applications, particularly those in laser optics. The core challenge addressed was the mismatch between the standardized 28V DC power bus used in military systems and the significantly higher voltage requirements of piezoelectric actuators. Existing commercial drivers were evaluated and found unsuitable for field deployment due to inadequate ruggedness, excessive complexity, or power limitations. Consequently, a modular system architecture was designed featuring four independent driver channels, each using a high-voltage, high-current linear amplifier topology to scale …

Synthetic Aperture Radar Processing For Increased Resolution Of Englacial Strata, Ava Stockman

Electrical Engineering

Glaciological research relies on a variety of remote-sensing methods to study the internal structure of glaciers and other bodies of ice. Synthetic Aperture Radar (SAR) serves as one method for imaging large cross sections of englacial strata, reducing the need for labor-intensive, costly, and hazardous ice coring expeditions and operations. Characterizing englacial structures using SAR images allows scientists to learn about the ice dynamics of past and present which provides the basis for discoveries about climate history and glacial dynamics. This project explores the benefits of employing various SAR processing methods to raw phase history data acquired through the British …

An Analysis Of The Power Consumption Of Various Computer Vision Machine Learning Techniques On A Microcontroller Utilizing The Clusterduck Protocol, Kaveh Shafiei

Electrical Engineering

Constant data processing is essential for effective data collection, particularly in remote and hard-to-reach areas. The need for efficient, autonomous data acquisition and transmission is increasingly addressed by integrating machine learning within larger communication networks. This paper explores the application of machine learning techniques with Internet of Things (IoT) mesh networks. Utilizing the LoRa communication protocol, data is captured and analyzed on an edge device and transmitted to a larger communication network. The ClusterDuck Protocol (CDP), developed by OWL Integrations, serves as an IoT mesh network designed to allow for communication in areas lacking traditional static infrastructure such as WiFi …

Selena Quintanilla-Pérez: Breaking Barriers In Tejano Music And Shaping Mexican-American Identity, Fatima Hernandez-Barajas

World Languages and Cultures

This project will focus on how Selena Quintanilla-Perez broke barriers in Tejano music for women and became a cultural icon representing the aspirations of the American Dream for the Mexican American community. The paper begins with a summary of Selena’s life and accomplishments, followed by an examination of the history of Tejano music, the role of women within the genre, Selena’s unique relationship with it, and how she embodies the pursuit of the American Dream while representing the Mexican-American identity within the community. Through this analysis, the project highlights how Selena’s success challenged traditional gender roles and bridged bicultural identities, …

Power Transmission System Demo, Jeremy Aiken, Shannon Robinson, Graham Dzengelewski

Mechanical Engineering

Professor Ramanan Sritharan and ME 329 students need a high-quality Power Transmission System, a detailed report, and robust Excel spreadsheet including all calculations that can serve as an example for students in the ME 329 lab.

Foot Pedal Assistive Device, Julian Rubinstein, Connor Jessen, Isabelle Utsler, Sydney Alexander

Mechanical Engineering

Individuals with lower-limb mobility problems may have trouble accurately locating the pedals of a three-pedal manual transmission car, and some medical conditions cause individuals to fatigue more quickly when driving. This project aimed to create a device that assists in locating the user’s feet, indicates to the user which pedals are currently in use, and provides a visual and physical warning if they are not in the correct place. The project sponsor, Alan Keizer, is the primary stakeholder in this project. This device will be designed specifically for Alan’s Subaru BRZ and will address Alan’s specific lower-limb mobility issues that …

Van Accessibility, Ann Larson, Camelia Anne Noureddine, Stephanie Rose Ruzicka, Kayla Joanne Gowey

Mechanical Engineering

The SLO Achievement House provides resources and activities for their clients, including daily trips to different parts of the community, to keep their clients connected to society. These trips require the clients, many of whom struggle with general mobility and strength, to step up to the high entrance of a van or company car. This daily activity poses a challenge both physically and emotionally for the clients. The current solution utilizes commercially available step stools, which lack handrails, overall stability, and adequate step depth. The Achievement House needs a stool or ramp tailored to their client’s needs and their specific …