Digital Commons Network^™

Simulation Of Powder Spreading For Metal Additive Manufacturing, Florence Duff

Master's Theses

The powder recoating process for Laser Powder Bed Fusion requires iterative experimentation to develop the correct process parameters that will result in high quality parts. There currently lacks good spread quality metrics and models for optimizing spread quality. A machine that simulates the powder spreading process was built to streamline the process of selecting process parameters for specific types of powders without having to operate the full laser system. The parameters investigated were the layer thickness and spreading speed. The response variables were metrics developed to assess spread quality: the percentage of the build plate covered by powder and the …

Greenhouse Scan-To-Bim, Mattheus Hsu-Ning Johnson

Architectural Engineering

This senior project focuses on the implementation of Scan-to-BIM software for capturing and modeling an existing building within Experimental Construction laboratory. The design of the project was to model the building using a 3D scan with the support of world measurements to document and create a digital model of the building. By doing this the project can evaluate the effectiveness, efficiency, and accuracy of integrating 3D scanning technologies into BIM modeling.

The project included taking data from a recent scan of the Experimental Construction Laboratory. We then took these scans and imported them to Autodesk Revit to develop a detailed …

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 …

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 …

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 …

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, …

Calvip Cohort 4 Local Evaluation Report: Peace And Justice Law Center’S Legal Services To Support Gang Desistance, Nyla Baxter-Williamson Ma, Kirsten Chaplin Ma, Tori Luna Ma, Topher Mcdougal Phd

Kroc IPJ Research and Resources

This Local Evaluation Report assesses the implementation and outcomes of the Peace and Justice Law Center’s Legal Services to Support Gang Desistance (LSSGD) project, funded by the California Board of State and Community Correction’s California Violence Intervention and Prevention Program (CalVIP) Grant, Cohort 4. Through LSSGD, PJLC sought to provide direct legal services to current or formerly gang-involved individuals, as well as those treated by law enforcement as gang-involved, to reduce legal obstacles to desistance, expand access to lawful employment, promote family stability, and improve trust in legal institutions. The Joan B. Kroc Institute for Peace and Justice (Kroc IPJ) …

Does This Story Make Sense?, Wayne Brouwer

Pro Rege

No abstract provided.

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 …

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 …

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 …

Effects Of Overcorrection On Mitigating Uncontrolled Tipping During Incisor Retraction Using Clear Aligners: Finite Element Analysis And In Vitro Experiment, Jianing Wang, Niko Burger, Bo Wang, Linxia Gu, Pengfei Dong

Biomedical Engineering Faculty Research and Publications

Uncontrolled tipping during incisor retraction with clear aligners continues to limit orthodontic treatment. Different countermeasures have been proposed to improve the predictability of aligners, such as power ridges and attachments, while their efficacy requires further investigation. This work investigated the biomechanics of the overcorrection in reducing the tipping angle and moment during incisor retraction with a clear aligner, through in vitro experiments and finite element analysis (FEA). Specifically, the influence of overcorrection angle (1 deg), retraction distance (0.15 mm), and the combination of both were assessed through in vitro experiments and the finite element simulation. Further computational simulations were conducted …

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 …

Parkinson’S Disease Phenotype Stratification Using Multiple Correspondence Analysis, Kelly Astudillo

Dissertations, Theses, and Capstone Projects

Parkinson’s disease (PD) is the second most common neurodegenerative disorder, with over 12 million people projected to be affected by 2040 (Dorsey et al., 2018). Deep phenotyping and stratification can provide useful information regarding PD pathogenesis and can aid in the  development of disease modifying therapies that aim to delay the progression or prevent the onset of neurodegeneration (Blandini et al., 2019; Smith & Schapira, 2022). Utilizing multivariate methods such as multiple correspondence analysis (MCA) permits for the simultaneous analysis of distinct data modalities. To the best of our knowledge, MCA has not been previously used to explore phenotype patterns …

Gathering Knowledge, Sustaining Science: The Female Forager And American Mushroom Culture, 1880–1930, Madeline S. Dede-Panken

Dissertations, Theses, and Capstone Projects

Unearthing origins of modern mycophilia, this dissertation explores the mushroom mania which reverberated through American society at the turn of the twentieth century, empowering Anglo-American women in new ways. America’s largely forgotten first mushroom fad illuminates gendered negotiations of foraging culture and public science. Beginning in the 1880s, a remarkable cohort of women helped turn mushrooms from shunned, mysterious organisms into wholesome delicacies for culinary and intellectual enrichment. Female enthusiasts fostered a vibrant mushroom culture and nationwide network of mycophiles. Culinary applications and poisoning fears legitimized women’s presence in scientific endeavors, positioning mycology as vital female knowledge for public safety …

A Predictive Coding Account Of Spatial Working Memory Following Prophylactic Levetiracetam Administration Prior To Traumatic Brain Injury, Omeima Mutwali

Dissertations, Theses, and Capstone Projects

Traumatic brain injury (TBI) symptom prevention and remediation is an important area of research that would benefit vulnerable groups, including active-duty and veteran soldiers. These patients can sustain penetrative forces in fields of combat or in training, which result in focal lesions that trigger inflammatory and degenerative processes in the brain. Both primary and secondary injuries are associated with changes to cognition, behavior and affective state. This disease poses increased risk of epileptogenesis, as well. Given these outcomes, prior research has evaluated levetiracetam (LEV) as a prophylactic treatment for seizures, cognitive deficits and negative emotionality. LEV acts as a presynaptic …

Policing Sex Trafficking: 'They’Re Never Taught, You Know', Anila S. Duro

Dissertations, Theses, and Capstone Projects

Research shows that victims of sex trafficking are most likely to first come in contact with the police (Baldwin et al, 2011; Twigg, 2017) and at times police have not been able to categorize cases of prostitution as trafficking even when trafficking elements were very clear (Dank et al, 2017; Dempsey, 2017; Farrell & Cronin, 2015). Despite the legal definition of trafficking, the terms prostitution, sex work, and sex trafficking are sometimes used interchangeably by law enforcement, whereas at other times, these words refer to different sets of circumstances and have different criminalization outcomes.  Research in this area is limited …

Unfreezing Language: A Decolonial Reframing Of Translanguaging Pedagogies In English As A New Language & Dual Language Bilingual Education Settings, Cristian R. Solorza

Dissertations, Theses, and Capstone Projects

This qualitative multi-case study examines how elementary teachers in English as a New Language (ENL) and Dual Language Bilingual Education (DLBE) settings conceptualize, implement, and reflect upon translanguaging pedagogies, with particular attention to translanguaging rings as tools for language differentiation. Grounded in a rearticulation of language as a dynamic, socially, politically, and historically constructed subject and object, this study challenges monoglossic ideologies that position named languages as bounded systems at the center of language education. Instead, it centers students’ lived, embodied, and agentive language practices as foundational to language learning and to their participation as knowledge producers in ENL and …

Investigating Individual And Group Level Mediators Of Fear Acquisition, Rachel S. Lese

Dissertations, Theses, and Capstone Projects

The ability to discriminate between cues predictive of threat vs. safety (fear acquisition) and subsequently update fear responding when contingencies change (fear extinction) is crucial to survival for all organisms. While these processes have been the subject of intense experimental scrutiny for several decades, most human fear learning studies have focused primarily on extinction learning and fear recovery processes, with less focus on fear acquisition itself. Indeed, researchers typically aim to minimize variability during fear acquisition in order to rule out differences in extinction being driven by variability during the initial learning phase. Thus, experimental protocols are often optimized to …

Cooling Deserts For Renters: Heat Equity Inside The Nyc Housing System, Tahreem Ashraf

Dissertations, Theses, and Capstone Projects

This study introduces the Cooling Desert Index (CDI), a composite spatial measure designed to identify census tracts in New York City where extreme heat vulnerability and structural barriers to adaptive cooling converge. Drawing on five publicly available datasets and a seven phase statistical pipeline, the CDI scores all 2,231 NYC census tracts on a continuous 0 to 100 scale by integrating heat exposure, severe rent burden, household income, racial composition, language access, disability status, and housing crowding. The analysis identifies 557 cooling deserts, defined as tracts where environmental heat risk is high and financial constraints make effective cooling structurally inaccessible, …

Vestigial Choreographies: Climate Consciousness In The Long Nineteenth Century, Alexandra A. Rego

Dissertations, Theses, and Capstone Projects

The aims of this project are twofold: (a) to develop a method of theoretical analysis and (b) to put this method into pointed use. In service of (a), I propose a method of choreographic analysis. This method operates relationally, highlighting the production of movement and stillness among and between bodies, objects, and encounters. Choreographic analysis draws from methods typically sequestered to dance studies. Towards aim (b), this project demonstrates the relevance and breadth of choreographic analysis by connecting it to ecocriticism. Throughout this project, I apply choreographic analysis to a diverse set of case studies. I use choreographic analysis to …

The Desire Of Strict Souls: The Poetry, Criticism, And Letters Of Paul Valéry And Wallace Stevens, Michael Healy

Dissertations, Theses, and Capstone Projects

This dissertation compares the poetic, critical, and epistolary oeuvres of Paul Valéry and Wallace Stevens and the influence of the former on the latter. Valéry famously advocated for the pursuit of “poésie pure” (“pure poetry”) and influenced Stevens especially in this way, though both of them concluded it was not achievable. I establish an approximation of a critical framework based on the work of the following critics and scholars: Wendy Lesser, Wendy Steiner, Anthony Cuda, Michael Clune, Paul Bové, and Liesl Olson. Harold Bloom’s passionate advocacy and deep, sustained engagement with Stevens and his work strongly influenced my choice to …

Roe V. Wade With Audre And Nikki: Their Social And Political Impacts Following The Landmark Decision, Sharon L. Eaddy

Dissertations, Theses, and Capstone Projects

This thesis analyzes how the 1973 Supreme Court decision Roe v. Wade shaped public understandings of reproductive rights and how those understandings diverged across race, gender, class, and sexuality. Using a qualitative, interdisciplinary design, the study pairs close textual analysis of Nikki Giovanni’s and Audre Lorde’s poems and essays with socio-legal and historical context on constitutional privacy doctrine, the Ninth and Fourteenth Amendments, and the Reconstruction legacy of the Civil Rights Act of 1866. The central research question is: what kinds of reproductive “freedom” become legible through Roe’s rights-based framing, and what forms of constraint remain visible when Black …

Building On Rented Land: An Interpretive Phenomenological Analysis Of Black Women’S Digital Homeplace-Building On Tiktok, Monica Thompson

Dissertations, Theses, and Capstone Projects

This interpretative phenomenological analysis (IPA) examined the lived experiences of seven Black women TikTok users, exploring how they describe and make meaning of TikTok as a space of digital expression amid algorithmic constraint and platform precarity. Grounded in Black Cyberfeminism, Critical Race Theory, and hooks’ (1990) homeplace theory, the study asked three questions: how Black women describe their use of TikTok; how they make meaning of the platform as a space of expression; and how they navigate platform instability, political threats, and content restrictions while maintaining authentic expression. Drawing on semi-structured Zoom interviews and analyzed using Smith et al.’s (2009) …

Materializing The Interface: Personal Data Feeds Generative Art, Erin Livingston

Dissertations, Theses, and Capstone Projects

Materializing the Interface: Personal Data Feeds Generative Art is a data-studio capstone project that reconstructs elements of desktop and mobile interfaces as handmade mixed-media artifacts, then digitizes them as an interactive website where generative text and images are fed by personal data flows. Twenty-one paper collage windows — built from cardstock, risograph-printed paper, and mixed media — were photographed, digitized, and activated using code to become the interactive surface of a desktop view driven by browser history. A corresponding mobile view renders a corpus of 500 Instagram advertisement screenshots through a risograph print aesthetic, fed by a hand-tagged emotion and …

An Absolute Manner Of Seeing: Flaubert, 1848, And The Development Of Modernist Style, Nicholas Olson

Dissertations, Theses, and Capstone Projects

This dissertation examines Gustave Flaubert’s Sentimental Education as a key work in the emergence of literary Modernism from the tradition of Realism. I begin by exploring the intellectual background of Realism in the works of Honoré de Balzac and the ties between this aesthetic theory and the theory of representative government: here I discuss the work of François Guizot, Friedrich Schiller, Friedrich Schlegel, J.W. Goethe, and Walter Scott as well as later thinkers like György Lukács, Pierre Bourdieu, Jürgen Habermas, and Jacques Rancière. From this, I demonstrate a commonly held theory of the social as a discreet totality, which makes …

Supramolecular Assembly In Short Peptide Systems For Selective Metabolite Recognition And Drug Nanoencapsulation, Maithreyi Ramakrishnan

Dissertations, Theses, and Capstone Projects

Short peptides can form adaptive supramolecular assemblies, and understanding how minimal sequences organize around neurometabolites or hydrophobic cancer drugs enables the rational design of functional materials. This thesis combines molecular dynamics with experimental validation to establish design rules linking peptide sequence to emergent structure and function. Chapter 1 outlines the molecular determinants governing peptide assembly. Chapter 2 reviews computational workflows that reveal sequence-dependent conformations and supramolecular organization. Chapter 3 applies these principles to Dynamic Peptide Libraries which identify tetrapeptides that selectively interact with neurometabolites. Chapter 4 extends the same interaction-driven framework to design tryptophan-rich pentapeptides that co-assemble with kinase inhibitors …

Contesting The Sacred: Ideology And Church Music Reform In Spain, 1850–1900, Francisco J. Legasa

Dissertations, Theses, and Capstone Projects

This dissertation argues that sacred-music reform in Spain between 1850 and 1900 was not a unified movement culminating in the 1903 Motu proprio, but a contest between two distinct and contemporaneous programs. The first, associated with Hilarión Eslava, affirmed musical expression and artistic progress, embraced stylistic eclecticism, and sought to rebuild musical institutions, modernize pedagogy, and forge alliances with civic life. It drew on Romantic thought that attributed to music a distinctive capacity to mediate religious experience. The second, aligned with Roman ultramontanism, held that Gregorian chant and Renaissance polyphony were the only legitimate models for sacred music and that …