Digital Commons Network^™

Leveraging Transformer-Based Ocr Model With Generative Data Augmentation For Engineering Document Recognition, Wael Khallouli, Mohammad Shahab Uddin, Andres Sousa-Poza, Jiang Li, Samuel Kovacic

Engineering Management & Systems Engineering Faculty Publications

The long-standing practice of document-based engineering has resulted in the accumulation of a large number of engineering documents across various industries. Engineering documents, such as 2D drawings, continue to play a significant role in exchanging information and sharing knowledge across multiple engineering processes. However, these documents are often stored in non-digitized formats, such as paper and portable document format (PDF) files, making automation difficult. As digital engineering transforms processes in many industries, digitizing engineering documents presents a crucial challenge that requires advanced methods. This research addresses the problem of automatically extracting textual content from non-digitized legacy engineering documents. We introduced …

T3-Ciders: Train-The-Trainer And Community Building To Increase Cyberinfrastructure Adoption In Cybersecurity Research And Education, Wirawan Purwanto, Mohan Yang, Peng Jiang, Shanan Chappell Moots, Masha Sosonkina, Hongyi Wu

University Administration Publications

T³-CIDERS is a train-the-trainer program to increase the adoption of advanced cyberinfrastructure (CI) and data skills into the fabric of research and education in cybersecurity and cyber-related disciplines. T³-CIDERS trains faculty, researchers, and students as “future trainers” (FTs) with hands-on technical and instructional skills to enable more people to effectively leverage CI in cybersecurity. The program includes a series of technical pre-training modules, a weeklong summer institute, ongoing learning engagements conducted over an academic year; it culminates with the FTs conducting locally tailored CI-infused training events at their respective home institutions. Ultimately, T³-CIDERS aims to build a “CI+cybersecurity” community of …

S6k1 Is A Targetable Vulnerability In Tumors Exhibiting Plasticity And Therapy Resistance, Saptadwipa Ganguly, Ravshan Burikhanov, Vitaliy M. Sviripa, Sally Ellingson, Jieyun Jiang, Christian M. Gosser, David Orren, Eva M. Goellner, Gautham G. Shenoy, Mahadev Rao, John D’Orazio, Christine F. Brainson, Chang Guo Zhan, Peter H. Spielmann, David S. Watt, Vivek M. Rangnekar

Physiology Faculty Publications

Background: Most tumors initially respond to treatment, yet refractory clones subsequently develop owing to resistance mechanisms associated with cancer cell plasticity and heterogeneity. Methods: We used a chemical biology approach to identify protein targets in cancer cells exhibiting diverse driver mutations and representing models of tumor lineage plasticity and therapy resistance. An unbiased screen of a drug library was performed against cancer cells followed by synthesis of chemical analogs of the most effective drug. The cancer subtype target range of the leading drug was determined by PRISM analysis of over 900 cancer cell lines at the Broad Institute, MA. RNA-sequencing …

Online Parameter Adaptation Of Lqr Controllers Via Rls For Prosthetic Joint Control: Experimental Validation On A Quanser Qube-Servo 2 Platform, Cynthia Lopez-Jordan

Theses and Dissertations

This thesis develops and experimentally validates an online adaptive Linear Quadratic Regulator (LQR) control method for prosthetic joint systems using Recursive Least Squares (RLS)-based real-time parameter estimation on the Quanser QUBE-Servo 2 platform. Traditional LQR controllers assume a fxed system model, which limits adaptability and results in reduced tracking accuracy, poor robustness, and loss of optimal performance when applied to dynamically changing prosthetic joints, infuenced by load variations, user gait changes, and mechanical wear. Limited experimental validation exists for combining RLS with online LQR adaptation in prosthetic-like systems.

To address these limitations, an RLS-driven Adaptive LQR framework was implemented to …

Collaborative Groups In Math: How Student Grouping Strategies Can Impact Math Achievement, Trevor S. Fletcher, Jenifer J. Dise

Graduate Research Papers

This study looked into the academic effect of student grouping strategies in math class. Twentyseven third graders, attending a public charter elementary school in the South and nine sixth graders, attending a public elementary school in the Midwest, are the participants in this study. Most of the third grade students scored below grade-level, and most of the sixth grade students scored above grade-level on their recent respective state tests in math. This study focuses on the academic effect of the style of collaborative grouping based on exit tickets and a survey on student thinking about math. When collaboration was used, …

The Goddard Rocket Researches: A Photographic Record, Esther C. Goddard

The Goddard Rocket Researches: A Photographic Record [Photo Album]

This page contains a pdf scan of 'The Goddard Rocket Researches: A Photographic Record' in its entirety. The individual photographs and their descriptions can be seen here.

'The Goddard Rocket Researches: A Photographic Record' is an annotated photo album covering Robert H. Goddard's work and experimentation with rocketry. It was assembled and curated by Esther Goddard sometime after her husband's passing in 1945.

The vast majority of these photographs were taken by Esther herself. Esther was an avid camerawoman and photographer, and during Robert's lifetime she meticulously documented his life's work in rocketry--from experiments and instruments to processes and …

Betting Against All Betas: Do Fama-French-Carhart Factors Share The Beta Anomaly?, Kevin Jiang

CMC Senior Theses

Frazzini and Pedersen’s (2013) Betting Against Beta is an investment strategy that exploits a well-documented anomaly in the Capital Asset Pricing Model. This anomaly is called the beta anomaly, which states that the model overestimates the risk-adjusted returns of high-beta assets and underestimates the risk-adjusted returns of low-beta assets. According to the beta anomaly, betas and alphas should be negatively correlated. Frazzini and Pedersen prove that an investor is able to generate positive abnormal returns by holding a long position in low-beta assets and a short position in high-beta assets. They also show that their Betting Against Beta factor delivers …

Poromechanical Solution For One-Dimensional Large Strain Consolidation Of Modified Cam-Clay Soil, Sheng Li Chen, Hai Sui Yu, Younane N. Abousleiman, Christopher E. Kees

Faculty Publications

A theoretical model describing the one-dimensional large strain consolidation of the modified Cam-Clay soil is presented in this paper. The model is based on the Lagrangian formulation and is capable of featuring the variability of soil compressibility (inherently due to the direct incorporation of the specific Cam-Clay plasticity model) and permeability, as well as the impact of the overconsolidation ratio (OCR). The derivation starts from the establishment of the incremental stress–strain relations for both purely elastic and elastoplastic deformations under one-dimensional compression conditions, and thereafter the coefficients of compressibility/volume change that are essential to the consolidation analysis. The governing partial …

Measuring The Similarity Between Trees Of Different Order, Camilo Morales

HMC Senior Theses

Graphs encode relationships between data. However, due to their versatility, it is often difficult to generalize the notion of similarity between two graphs using a distance function. Since graphs can represent various data sets, specific distance metrics need to be tailored for questions we are interested in answering or the data set we are working with. This project is motivated by ongoing investigations into the evolution of female gender representation in mathematics. By building off previous work that has taken data from the Mathematics Genealogy Project and modeled this evolution of representation via a tree, we would like to develop …

Author Biographies

Obsculta

No abstract provided.

The Impact Of Second-Year Teacher Mentoring, Jennifer Eaton

Dissertations

Teacher retention in the United States is an ongoing problem that is affecting students around the country. States, districts, and schools have used many strategies to try to alleviate the teacher shortages. One of the most common strategies utilized is mentoring first year teachers. This mentorship helps establish the teachers in the schools and gives more of an understanding of what teaching is like on a day-to-day basis.

This research specifically examined the potential impacts a second year of mentoring could have on the second-year teacher. In the United States, nine states have moved to mentoring models lasting longer than …

Seeing Women Who Fit: Girls’ Forecasted Fit In Stem Fosters Career Interest, Emily N. Cyr, Steven J. Spencer, Stephen C. Wright, Jennifer R. Steele, Kathryn M. Kroeper, Patricia Colaco, Tara C. Dennehy, Priscilla Lok-Chee Shum, Taylor Ballinger, Haemi Nam, Stephanie L. Reeves, Mary Wells, Toni Schmader, Hilary B. Bergsieker

Psychology Faculty Publications

Girls often express less interest in STEM (science, technology, engineering, mathematics) education and careers than boys, despite having comparable aptitude. We randomly assigned 242 girls (Mdnage = 12 years; 38% East Asian; 37% White) at Canadian STEM camps to control conversations about generic camp experiences, or intervention conversations where STEM role models discussed how STEM education and careers align with each girl’s most important value and emphasized the social community inside and outside of STEM. Key measures were collected at baseline, and several days after the intervention (or control). Girls’ current STEM fit did not differ by condition, …

State Takeover Laws (Re)Visited: School Board Leadership As White Property, Steven L. Nelson, Ericka Love

City University of New York Law Review

This Article leverages Cheryl Harris’s Whiteness as Property to better understand the state takeover of public schools in Houston, Texas. In doing so, the Article recounts the history of state takeovers of public schools and districts before highlighting how whiteness as property has been applied in research in the field of education. The Article shares the specific facts about the state takeover of public schools in the Houston Independent School District ahead of applying the four rights inherent in Harris’s Whiteness as Property. This Article argues and exhibits that whiteness as property is an appropriate framework by which to evaluate …

Graduate School: Graduate School Policies And Processes (2025-2026)

Academic Affairs – Policy Library

No abstract provided.

Risk-Averse And Multi-Objective Decision-Making Models For Rehabilitating Water Pipeline Networks Subjected To Earthquakes, Sumaya Sharveen

Civil Engineering Dissertations - Archive

Water distribution networks (WDNs) are critical infrastructure systems that are highly vulnerable to seismic hazards. Utility managers are often required to make proactive rehabilitation decisions under uncertainty, constrained by limited resources. However, existing seismic rehabilitation decision-making models typically ignore the influence of risk preferences, assume cooperation among conflicting objectives, and lack flexibility in addressing the diverse needs of utilities. This research aims to develop comprehensive risk-averse and multi-objective decision-making models to identify critical pipelines for proactive seismic rehabilitation in WDNs. Three distinct models are proposed to support utility decision-making across different planning contexts. First, a single-objective risk-averse simulated annealing (RSA) …

Development Of Supervised Machine Learning-Based Life-Cycle Cost Estimation And Prediction Models For Comparative Sewer System Rehabilitation Using Open-Cut And Trenchless Cured-In-Place Pipe Methods, Gayatri R. Thakre

Civil Engineering Dissertations - Archive

Aging wastewater infrastructure in the United States demands renewal strategies that balance cost-effectiveness, sustainability, and minimal social disruption. Conventional open-cut pipeline installation (OCPI) involves extensive excavation and restoration, whereas trenchless alternatives such as Cured-in-Place Pipe (CIPP) Renewal Technology offer reduced surface disturbance and environmental impacts. However, existing studies primarily focus on Construction Costs (CC), neglecting integrated life-cycle evaluations that also account for Environmental Costs (EC) and Social Costs (SC).

The primary objectives of this research are to develop supervised machine-learning (ML) models to estimate and predict CC in 2025 US dollars (USD) per linear foot of OCPI and CIPP Renewal …

Watchdogs Or Lapdogs: How Audit Committees Influence Financial Reporting Quality And Cybersecurity, Yanru Yang

2025

With the increasing complexity of the business environment, the role of corporate governance and oversight is expanding continuously. Grounded in archival research, my dissertation consists of three studies that explore the features of audit committees in monitoring both financial reporting and broader areas, such as cybersecurity.

The first paper, co-authored with Gopal Krishnan and Wei Yu, examines the implications of audit committee (AC) director departure for financial reporting quality and audit risk. We find that the departures in the firms with most concerning AC departures are associated with a higher likelihood of a future “Big R” restatement announcement and auditor …

Digital Platform Transitions In The Finance Industry: Three Essays, Cheryll-Ann Wilson

2025

This three-paper dissertation is motivated by an emerging dichotomy in the financial sector: an increasing use of an open-source digital platform—the Python platform—in an industry that historically has been wedded to proprietary systems.

Chapter 1 is a qualitative pilot study to ascertain which factors are likely to motivate investment professionals to select Python versus other tools and/or technologies. I find that efficiency and access to industry-specific libraries—notably Pandas and NumPy—are significant motivators in their selection of Python over Excel. Chapters 2 and 3 examine the issues through a sequential, exploratory mixed methods approach.

Chapter 2—the qualitative field study—investigates how and …

Multinomial Trees And Multinomial Percolation, Michele Tienni

Yale Graduate School of Arts and Sciences Dissertations

We study multinomial percolation, which is bond percolation on a family of graphs ("blow-up graphs") defined in terms of a fixed graph G. We compute connection thresholds in terms of distances on G. Moreover, if the percolation probability is inversely proportional to the blow-up multiplicity, there is a phase transition above which a giant component emerges. We show that many properties of the giant component can be computed using an analytic function with variables indexed by the vertices of G. Moreover, we find that the giant component gives rise to a natural field on G. As the blow-up multiplicity grows, …

Characterization Of Municipal Solid Waste Using Machine Learning Based Imaging And Chemical Analysis, Enyonam Ahadzi

Theses and Dissertations--Biosystems and Agricultural Engineering

According to the U.S. Department of Energy’s 2023-billion-ton report, the United States generates nearly 300 million tons of municipal solid waste every year. More than 50% of that waste is underutilized and ends up in landfills. This poses serious public health and environmental risks. But beyond the environmental and health implications, this is also a wasted opportunity. The U.S. Energy Information Administration estimates that, for every 100 lbs of waste we throw away, about 85% can be used as fuel or for electricity generation. However, its complex and heterogeneous nature poses challenges for efficient sorting and valorization in waste to …

Valorizing Municipal Solid Waste For Sustainable Aviation Fuel And Polyhydroxyalkanoate Bioplastics: Pyrolysis And Microbial Pathways, Emon Das

Theses and Dissertations--Biosystems and Agricultural Engineering

The escalating global burden of municipal solid waste (MSW), projected to reach 3.88 billion tons annually by 2050, calls for innovative valorization strategies to mitigate environmental impacts and promote a circular bioeconomy. This thesis investigates the conversion of MSW into two high-value products: sustainable aviation fuel (SAF) and polyhydroxyalkanoate (PHA) bioplastics. Chapter one presents comprehensive physicochemical characterization and pyrolysis-GC/MS analysis of MSW feedstocks. The physicochemical results reveal that densification enhances handling and storage properties, while pyrolysis-GC/MS analysis indicates that plastic-rich MSW streams produce bio-oils with favorable hydrocarbon profiles suitable for SAF production, potentially contributing to decarbonization efforts in the aviation …

The State Of Elementary Social Studies In Michigan, Annie Mcmahon Whitlock

The Great Lakes Social Studies Journal

None

A Design And Analysis Of Computer Experiments Approach To Water Distribution Network Seismic Rehabilitation Optimization, Uthman Abiola Kareem

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Water is an essential part of human life. However, there are critical infrastructures that enable water availability in communities and homes. One of such is a water distribution network. Water distribution network performance depends on its reliability, which could be threatened by external agents like earthquakes. When earthquakes occur, they cause damages on some pipes within the distribution network and this limits performance of water distribution network. While earthquakes cannot be prevented, effective maintenance intervention may reduce the impact of earthquakes on water distribution networks. In order to develop an effective maintenance plan, researchers approach it in different ways. However, …

Analysis Of Crowd Logistics Networks Using Agent-Based Models, Preetam Kulkarni

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Crowd logistics is a system in which an online platform connects a group of non-professional couriers (crowd/carriers), who use their under-utilized resources to offer delivery service to other individuals or businesses (senders) for a fee. While crowd logistics platforms have the potential to offer more flexible and responsive delivery services for much lower rates than traditional logistics providers, it is difficult for platforms to be successful as it is challenging to meet carriers’ and senders’ expectations. Crowd logistics has been applied in the context of food and grocery delivery, parcel pickup and drop-off services and last-mile delivery, however, it has …

An Exploration Of Ibdp Coordinator Leadership In Southeastern U.S. Public High Schools, Raymond W. Scheetz Jr.

Theses and Dissertations--Educational Leadership Studies

Along with its brand, vision, and curricula, International Baccalaureate (IB) provides member schools with requirements and expectations, such as implementing a program coordinator. However, the need for flexibility that would allow for global implementation leaves the nature of IB’s required program coordinator positions subject to local discretion in many ways. However, while increasing in numbers globally, IB Diploma Programs are still not widely implemented in public high schools throughout the U.S. Southeast. As a result, the position of an IBDP coordinator is unusual in such schools in the region. Also, the IBDP coordinator position has not been substantially defined or …

How Elementary Schools Support Families In Mandatory Middle School Choice: A Comparative Case Study, Eleni Filippatos

Theses and Dissertations--Educational Leadership Studies

This dissertation examines the role of New York City elementary school leaders in shaping fifth graders' middle school choice processes in two public schools serving predominantly economically disadvantaged, Latino families. As school choice increasingly influences students' academic trajectories, understanding how leaders engage families in this decision-making process is essential for promoting educational equity. The study explored how public elementary school principals, counselors, and teachers support families during the universal middle school application process.

Using a qualitative comparative case study design, I conducted semi-structured interviews, field observations, and document analysis to compare leadership practices at two demographically similar elementary schools with …

The Impacts Of Land Use And Groundwater Inputs On Stream Health And Habitat Of Jennings Creek, Bowling Green, Kentucky, Allison Francis

Mahurin Honors College Capstone Experience/Thesis Projects

In Bowling Green, Kentucky, the Jennings Creek watershed encompasses the entire city and surrounding area; however, little work has been completed focused on assessing the Creek’s water quality, habitat, and biological indicators. Jennings Creek is fed by several karst groundwater springs, making it highly vulnerable to contamination due to the rapid connection between the surface and subsurface via sinkholes and underground rivers. An examination of Jennings Creek’s water quality, habitat, and biological indicators provides an assessment of the watershed’s health.

The methodology closely followed the methods for assessing habitat by Kentucky’s Energy and Environment Cabinet and was approved for the …

Empowering Future Educators: Exploring Preservice Elementary Teachers’ Self-Efficacy Within Integrated Stem Experiences In A Science Methods Course, Shane C. Campbell

Theses and Dissertations--Education Sciences

There is an ongoing need for preparing high-quality preservice elementary teachers who are confident and capable in the design and delivery of integrated STEM instruction. This qualitative study examines the experiences of a small cohort of preservice elementary teachers enrolled in a science teaching methods course and further examines how preservice teachers' perceptions of self-efficacy change as a result of their participation in integrated STEM experiences in science methods coursework. Data were collected using pre and post surveys to capture self-reported efficacy levels related to STEM teaching, along with semi-structured interviews conducted before and after the course to further contextualize …

Educational Experiences Of Latinas In Space Exploration: Achievement Motivation And Science Identity Development, Roslyn Soto Sanchez

CGU Theses & Dissertations

For the U.S. to retain a leading role in understanding the solar system and the universe, a diverse and highly skilled STEM workforce is required. This qualitative study of the K-12 and higher education lived experiences of 30 Latinas who have earned STEM degrees and work in space exploration contributes to existing research by (a) offering insight on the types of achievement motivation that drives them to succeed along these challenging academic pathways; (b) providing an understanding of how Latinas in space exploration developed their science identities, and at what point they felt like they belonged as “real” scientists, engineers …

Excellence And Performance Improvement: The Goals And Standards Guiding Skill Development In Usa Curling, Derrick C. Mclean

CGU Theses & Dissertations

Excellence can be found in every goal-directed pursuit aiming to improve abilities. The present dissertation integrates goal setting theory, achievement goal theory, and deliberate practice into a conceptual model describing how excellence is achieved. It is argued that future research using this model for excellence should operationalize excellence as "the process of surpassing a standard that had been previously inaccessible." These standards can refer to one’s previous performance, another’s performance, or performance against an objective standard of the task; the excellence for one may not be excellence for another. The stated definition is aspirational, goal-directed, process-oriented, and grounded in empirical …