Digital Commons Network^™

Lidar At Poly Canyon, An Binh Chuong

Architectural Engineering

Poly Canyon serves as a living laboratory that reflects Cal Poly’s “Learn by Doing” philosophy through a collection of student-designed and student-constructed structures. Among these is Fratessa Tower, a reinforced concrete observation tower distinguished by its tripod support system, cable-suspended observation deck, and steel spiral staircase. The tower’s unconventional geometry and exposed structural system present unique challenges for documentation, making it well suited for evaluating modern reality-capture and modeling techniques.

This project focused on creating an accurate as-built Building Information Model (BIM) of Fratessa Tower using LiDAR-based scanning, field verification, and Autodesk Revit. Point cloud data were processed to reconstruct …

Reinforced Concrete Design Fundamentals, Belen Stephanie Martinez Espinoza, Estevan Jacob Perez

Architectural Engineering

Hispanic workers make up a large and growing portion of the construction workforce in the United States; particularly in California, the percentage of construction workers who are Hispanic is estimated to be about 55% as of 2021 (Elkins). Many of these workers are Spanish-speaking, yet there is still a gap between technical engineering design and what is understood and applied in the field. One major reason for this gap is the lack of clear bilingual resources. To bridge the gap, a 48-page bilingual booklet titled Reinforced Concrete Design Fundamentals (Fundamentos del Diseño de Concreto Reforzado in Spanish) was created. This …

Flexural Behavior And Failure Mode Assessment Of Concrete-Encased Steel Beams Constructed With Experimental Cardboard Formwork, Luke Robert Jones, Drew Takeshi Kawaguchi

Architectural Engineering

This project investigated the flexural behavior of a concrete-encased W8×13 steel beam detailed without conventional longitudinal reinforcement and constructed using an experimental cardboard/Masonite formwork system. A bare steel control specimen and an encased composite specimen were tested under identical loading conditions to evaluate the effects of concrete confinement and welded transverse reinforcement on lateral-torsional buckling behavior. Results showed that the encased specimen remained laterally stable and developed flexural cracking and concrete crushing rather than the lateral-torsional buckling observed in the control beam. The study also demonstrated that the modified cardboard formwork successfully contained the concrete without the seepage failures observed …

Building With Mass Timber. A Comparative Analysis Of Mass Timber Production In The United States And Europe, Polina Slaboff

Architectural Engineering

The construction and building industries are some of the largest contributors to global carbon emissions accounting almost 42% of global emissions according to Architecture 2030 (2026), prompting increased interest in sustainable building materials such as mass timber. This paper investigates mass timber production in the United States and Europe through a comparative analysis of supply chain, vertical integration, manufacturing processes, machinery, and policy differences. Despite the United States’ abundant forest resources and a growing market demand, American mass timber production continues to lag behind Europe due to limited mill operation, limited vertical integration and demand in commodity lumber, production processes, …

Stem Workshops For Pre-K Students, Sofia Berg, Ashlyn Swoboda

Architectural Engineering

This project involved the development and implementation of a four-part structural engineering workshop series for preschool-aged children at the Orfalea Children’s Center at California Polytechnic State University, San Luis Obispo. The workshops were designed to introduce fundamental structural engineering concepts through age-appropriate discussions, demonstrations, and hands-on activities focused on engineering careers, structural shapes, skyscrapers, and bridges. The lessons emphasized concepts such as stability, bracing, structural loading, seismic behavior, and iterative design while encouraging collaboration, creativity, and problem solving.

Throughout the workshop series, students actively participated in discussions, demonstrated enthusiasm for engineering activities, and were able to recall concepts introduced in …

Xenaforms: Reinforcing Kinematic Stability Through Rigid Connections, Katherine G. Thies

Architectural Engineering

XenaForms combine rigid planes and straight lines with the fluidity of structural origami to create beautiful, organic folded plate structures. Unlike many conventional structures, folded plate systems derive their stability from the interaction between connected panels, creating the appearance of a single continuous sheet of material. The XenaForm uses structural origami and triangulation to create stable points at the apex of two non-colinear triangles. While it is mathematically true that no moment needs to be transferred across the seam between panels in order to have a stable structure, allowing some moment capacity greatly helps during construction. Specifically, these stiff connections …

Thousand Hills Pet Resort Deck Design, Kenzie Brown

Architectural Engineering

On-site residential units at Thousand Hills Pet Resort currently lack ADA-compliant access, as entry is limited to small, elevated doorways that are only reachable by stairs. A deck connecting the units and providing accessible ingress and egress was designed for this senior project.

In addition to the ADA requirements, the property is expected to undergo significant redevelopment in the coming years. As a result, the deck design must not only meet accessibility needs but also be adaptable and reusable. The final design is a modular deck structure utilizing a hybrid foundation system that facilitates future relocation of the deck. The …

Design And Construction Of Caed Support Shop Steel Fence On Existing Cmu Wall, Jared Gustavo Martinez, Agustin Dominguez Jimenez

Architectural Engineering

This project involved the design, testing, fabrication, and construction of a new steel fence system for the CAED support shop at California Polytechnic State University, San Luis Obispo. The fence was designed to attach to an existing CMU wall and serve as a future attachment point for a removable shade canopy system. Experimental testing was performed on multiple turnbuckles to establish a conservative design load for the structural design of the fence posts, baseplates, welds, and anchorage connections. In addition to meeting structural requirements, the project incorporated architectural elements inspired by the original fence and surrounding CAED shop environment. The …

Modular House Design Study, Jordan J. P. Smith

Architectural Engineering

The Modular House is a student designed and constructed structure in Poly Canyon. For decades it served as a home for the Canyon’s caretakers who maintained the structures, looked over the Canyon, and helped construct student projects. After being abandoned for a variety of reasons, the structure now currently stands as an open-air pavilion.

This project studies The Modular House as a unique and storied site and proposes a theoretical retrofit to make the structure habitable again. Historical documents, past senior projects, images, and firsthand accounts were reviewed to understand the site’s history and how it changed over time. In …

Tanzania Mbesese Initiative 2026, June Ezzell, Sam Liebman, Noah Beyer, Kate Hamilton, Luke Vollert, Kylee Borgen, Cody Balazs, Meg Mclaughlin

Architectural Engineering

The Tanzania Mbesese Initiative 2026 Senior Project supports a multi-year design-build effort to establish the Same Polytechnic College in Same, Tanzania. This community faces high poverty levels and limited access to higher education, necessitating sustainable infrastructure to support tertiary education. To prepare for the upcoming July phase of construction, an eight-student Architectural Engineering team designed three practical and resilient structures: a Shade Structure, a Water Collection Structure, and a Reusable Scaffolding system. The final design applied structural analysis, modeling, and hand-tool fabrication practice to balance material efficiency with long-term structural durability. The deliverables provide comprehensive construction documentation, complete material takeoffs, …

Design And Implementation Of A Honeycomb Damping System For The 2026 Eeri Seismic Design Competition, Vera Nguyen, Lauryn Wojcik

Architectural Engineering

The authors of this report were a part of the 2026 Earthquake Engineering Research Institute (EERI) chapter at California Polytechnic State University, San Luis Obispo. In July 2026, they will travel to Portland, Oregon with 12 students to compete in the Undergraduate Seismic Design Competition hosted by EERI. The competition required teams to develop a comprehensive structural design proposal that included computer-based modeling and analysis, construction of three physical models, and the preparation of both a technical poster and oral presentation for a proposed high-rise building located in Portland, Oregon. Cal Poly’s “Illahee Tower” was designed with an emphasis on …

Caed Shop Entrance Wall Construction, Mason Neil Mitchell, Benjamin Joseph Rohrer

Architectural Engineering

This project involves the demolition and reconstruction of the CAED Support Shop Wall at Cal Poly, San Luis Obispo. The project was designed as a multidisciplinary project, combining architectural engineering and construction management students who collaborated on the rehabilitation of an existing structure. This project aimed to use “replication” as a means of historical preservation and restoration, specifically in the fabrication of custom CMU members.

Sotto L'Ulivo, Makayley Washburn, Alex Twomey, Juliana Pantoja, Megan Boyle, Mark Tain Lawson

Architectural Engineering

Over the span of six years, four Architectural Engineering senior project teams designed and developed a shade structure adjacent to Engineering West (Building 21) at California Polytechnic State University, San Luis Obispo. Each phase of the project built upon the last, showcasing student work and application of the ARCE curriculum with the help and guidance of Professor Craig Baltimore.

In the fall of 2025, five Architectural Engineering seniors chose to continue this project and complete the construction of the structure and plaza. The Sotto L’Ulivo phase picked up where the last team left off, taking on the construction of the …

Concrete And Masonry Code (Beams), Michael Alexander Simas Rocha

Architectural Engineering

This report only covers the beam design of the code that was written. The end goal of this project is to write code for concrete and masonry following what was taught in the lecture classes. This project is acting as a foundation for the end goal of a program that can compete with SAP2000, ETABS, RISA, and others. One final goal is to have the print out have the look and feel of having been done by hand. While coding; several factors were recorded including time spent coding, debugging, and then to do three problems by hand vs how long …

The Xenaform: Structure Through Geometry, Justin Tobias Mendoza Ocampo, Emily Marie Labrador, Banyan Walker, Paul Minchev, Brayden Sean Kelleher, Ethan Mario Ceccarelli

Architectural Engineering

The XenaForm is a geometry-driven structural system that incorporates complex forms generated from simple rules of stability, inspired by the work of Iannis Xenakis and reworked by Professor Edmond Saliklis. This project investigates how structural stability can be achieved through geometric configurations rather than a reliance upon material strength alone. By utilizing the design principles of trilateration and the interconnection of triangular panels, the XenaForm was constructed in accordance with the rules of the International Association for Shell and Spatial Structures Pavilion Competition. The team generated several design iterations and selected a final design to fabricate and construct, considering affordability, …

Well-Being, Resilience, And Trauma During Migration: A Mixed Methods Study Of Venezuelan Migrants In Transit, Margaret S. Port

Dissertations

A substantial body of research has examined the psychological impact of experiences preceding and following migration, yet comparatively little attention has been given to the psychological toll of the migration journey itself. Moreover, due to the relative novelty of the Venezuelan migrant crisis and the community’s arrival in the United States, the psychological impact of Venezuelan migrants’ unique migration experience has been underexamined. This study utilized an explanatory sequential mixed methods design to investigate the relationships between well-being, resilience, and trauma among Venezuelan migrants in Chicago, Illinois, while also exploring their lived experiences of the migration journey. Study participants (n …

Understanding And Enhancing Suicide Prevention Strategies In The Military: The Roles Of Culture, Leadership, And Command Climate, Kelly Johanna Pires

Dissertations

Military service members are shaped and molded to fit a military culture that emphasizes mission readiness and continuous preparedness. Countless hours are spent training for various situations that can arise. Many trainings are geared toward worst-case scenarios that can cause an increase in stressors and traumatic events. They are expected to demonstrate resilience and overcome adversity to remain mission-ready. This expectation to be mission-ready creates the space for mental health difficulties as well as stigma and avoidance of help-seeking behaviors. In many cases, the desire to stay mission-ready creates a barrier for conversations around mental health. The military emphasizes qualities …

Addressing Mental Health Issues And The Effectiveness Of Cognitive Behavioral Therapy And Mindfulness-Based Interventions Among Athletes, Shelby Jones-Stachnik

Dissertations

This literature review identifies mental health concerns among competitive athletes and evaluates psychological interventions to address these challenges. Specifically, the review explores the mental health concerns experienced by athletes engaged in high-level sport. It examines whether cognitive behavioral therapy and mindfulness-based interventions are effective approaches for improving psychological outcomes in this population. A systematic review of peer-reviewed research was conducted, and findings were synthesized to evaluate the effectiveness of cognitive behavioral therapy and mindfulness-based interventions. The review included randomized controlled trials, quasi-experimental studies, and meta-analyses examining psychological interventions in athletic populations. Findings across the literature indicate that both cognitive behavioral …

Evaluating Equity In 9th And 10th Grade Ela Instruction, Alana Brown

Dissertations

Persistent racial disparities in English Language Arts (ELA) achievement remain a critical challenge in secondary education, particularly for Black students. This mixed-methods study examined the reading proficiency gap between Black and White students in Grades 9 and 10 on the state under study’s reading assessment. The purpose was to identify effective instructional strategies, necessary resources, and implementation processes to reduce the gap and ensure sustainability. Findings indicated that culturally responsive instruction, targeted intervention, and data-informed instructional coaching improved student engagement and reading performance. However, inconsistent implementation and limited early literacy foundations remained significant barriers. Recommendations include strengthening professional learning communities, …

The Motherhood Contract: Mental Load, Moral Risk, And Gendered Care In Contemporary Parenting And Digital Culture, Stephanie J. Stallman

Dissertations

This dissertation examines childcare as a site of gender inequality shaped by cultural norms, structural barriers, and digital discourse. Despite increased awareness of shared parenting ideals, mothers predominantly bear the “mental load.” This study introduces the idea of a motherhood contract: implicit expectations that mothers are responsible for managing children’s needs. Two research questions guide this study. (1) What are parents’ experiences of managing the mental load of caregiving? How do they make sense of these experiences within the gendered and moral expectations shaping family life? (2) How are cultural ideas about childcare and parenting constructed, circulated, and reproduced through …

Diverse Families Navigating Mental Health At The Pediatrician’S Office: A Mixed Methods Exploration Of The Interplay Of Stress, Culture, And Child Mental Health In The Primary Care Setting, Sara B. Budowsky

Dissertations

Low-income and ethnic minority youth experience high psychiatric need but persistently low participation in traditional mental health care. General pediatricians are often the first and only healthcare providers with whom many families engage around their child’s emotional and behavioral development. Using both quantitative analysis of retrospective secondary data and Interpretative Phenomenological Analysis (IPA) of in-depth interviews with diverse caregivers, this project explored influencers of child mental health and family utilization of pediatric primary-care-based mental health services in the context of a uniquely multicultural clinic serving a predominantly Medicaid population. Three key findings include: 1) Caregiver Stress was a highly significant, …

The Impact Of Reliable Backup Childcare Services On Work-Life Balance And Stress Levels Among Working Parents, Christiana Arhin

Dissertations

The purpose of this study is to investigate the relationship between access to reliable backup childcare services, work-life balance, and stress levels among working parents. Building on Arhin’s (2025) research, this study seeks to address limitations in sample diversity and incorporate qualitative methods to gain deeper insight into these variables. Using a mixed-methods approach, the study will examine how access to backup childcare services influences work-life balance and stress levels, with a focus on capturing both quantitative trends and qualitative perspectives of working parents. By exploring these relationships, the study aims to provide a more comprehensive understanding of the role …

The Impact Of Artificial Intelligence And Neuro-Linguistic Programming On Candidate Assessment In Talent Acquisition, Amna Fahim

Dissertations

Digitalization in human resource management led to the implementation of Artificial Intelligence (AI) and Neuro Linguistic Programming (NLP) in recruitment practices. However, although AI and NLP were adopted globally, the empirical evidence in emerging countries, especially Pakistan, was scanty. Hence, this study investigated the impacts of individually and jointly implementing AI and NLP on candidate assessment outcomes in the telecommunications industry in Pakistan. According to the literature, this study is grounded in Technological Determinism, Machine Learning Theory, Psycholinguistic Theory, and Cognitive Behaviorism. A quantitative correlational approach was used in this study. To investigate the proposed research questions, descriptive statistics, Pearson …

The Impact Of Wicor Strategies On Academic Achievement In Secondary Classrooms, Neketa G. Watson

Dissertations

This mixed-methods study examined the impact of Writing, Inquiry, Collaboration, Organization, and Reading (WICOR) instructional strategies on academic achievement and student learning in secondary schools. Conducted within a large, diverse school district, the study explored teacher and administrator perceptions of WICOR implementation and examined student achievement data across three secondary schools. Data were collected through Likert-scale surveys from 29 teachers and five administrators, semi-structured interviews with five administrators, and three years of extant state assessment data. Findings revealed strong positive perceptions of WICOR’s effectiveness in promoting student engagement, critical thinking, instructional consistency, and academic success. Participants also identified implementation challenges …

Disability Employment In Côte D’Ivoire: Human Resources Managers’ Experiences And Challenges, Kinanpy Vanessa Toure

Dissertations

This study examined the critical role of human resource (HR) managers in promoting workforce integration and addressing the persistent barriers faced by people with disabilities (PWDs) in Côte d'Ivoire. Focusing on the perspectives, challenges, and lived experiences of HR managers, the research explored how inclusive workplace practices were developed and implemented within the Ivorian context. Employing a qualitative case study design, the study utilized semi-structured, scenario-based interviews and analyzed allowable public documents, specifically the Ivorian Labor Code, a relevant NGO publication addressing disability inclusion in Côte d’Ivoire, and the publicly available websites of participating organizations. This approach was intended to …

Leadership Without Assimilation: Reimagining Executive Leadership Development To Affirm Black Identity And Leadership Persistence, Nicole Monroe

Dissertations

Executive leadership development programs are often treated as race-neutral pathways to advancement, yet they frequently reflect dominant cultural norms that require leaders from marginalized communities to assimilate in order to succeed. This study examined the question: How can executive leadership development be restructured to affirm Black identity, cultural intelligence, and leadership persistence rather than require assimilation into exclusionary models? This study employs a convergent mixed-methods design, including interviews with 9 Black executive leaders and a document analysis of leadership development programs using the Assimilation Pressure Index. Findings reveal persistent assimilation pressures and identity negotiation within leadership development experiences, and document …

The Perception Of Students Toward Post-Pandemic Online Graduate Programs At A Historically Black College & University (Hbcu) In The South, April Ivery

Dissertations

This study examined the perceptions of online graduate students regarding the accessibility and usefulness of support services (Online Academic Advising, Online Technical Support, Online Counseling Services, Online Library Resources, and Online Career Services) at a Historically Black College and University (HBCU) in the southern United States. The study aimed to examine the attitudes of online students towards these support systems and to determine whether these attitudes played a role in their learning process. The primary research question was: What is the relationship between the accessibility of support systems and students' perceptions of those support systems in online graduate programs at …

Fairness, Representation, And Retrievability In Ai Information Systems, Xiaoxiao Shang

Engineering Ph.D. Theses

Artificial intelligence and machine learning systems are deeply embedded in modern information ecosystems, yet the bias they exhibit is not a single phenomenon. This dissertation identifies three distinct stages of the AI pipeline at which bias surfaces, each demanding a di!erent conceptual treatment: measurement bias in preprocessing, addressed through identification fairness; content bias at the corpus level, addressed through representation equity; and systemic bias in retrieval, addressed through distributional justice. Measurement bias arises when raw signals about people are converted into categorical labels, and errors at this stage propagate into every subsequent computation. In race and ethnicity prediction from names, …

Essays On Health And Immigration Policy, Selen Ozdogan

Dissertations, Theses, and Capstone Projects

This dissertation consists of two essays in applied microeconomics, each examining how individuals and institutions respond to policy changes. Both essays leverage natural experiments and recent advances in difference-in-differences estimation to identify causal effects. Both also speak to a common theme in public policy: the gap between intended and actual consequences of government intervention, and the role that policy design plays in shaping those consequences.

The first essay examines the impact of state-level e-cigarette excise taxes on nicotine and tobacco exposure among adults aged 18 and older. A central contribution is its use of individual-level panel biomarker data from urine …

Riding Two Cities: A Data Visualization Capstone Comparing Nyc's Bmt Subway And Tokyo's Yamanote Line, Andreina R. Abreu

Dissertations, Theses, and Capstone Projects

Every weekday, millions of people trust two radically different urban rail systems to get them where they need to go. New York City’s Brooklyn-Manhattan Transit (BMT) group threads through the boroughs in a branching web of eight lines. Tokyo’s Yamanote Line runs as a single, closed loop around the capital’s core. Both systems move enormous volumes of people through dense, high-demand environments, but they do it in fundamentally different ways, and they share very different amounts of information about how they’re doing it. According to federal reporting, MTA New York City Transit served over 1.1 billion unlinked passenger trips in …