Digital Commons Network^™

Tidal Evolution Of Packed Moon Systems Around An Earth-Mass Planet, Alan Briseño, Billy Quarles, Marialis Rosario-Franco

Student Publications

While missions have long targeted terrestrial exoplanets within the habitable zone of their host stars, the number of exomoon candidates is expected to grow as next generation space-based observatories achieve the photometric sensitivity required to detect their transit signals. Constraining the stability limits of tightly packed moon systems is therefore essential for transit searches and predicting the number of moons around terrestrial planets. In our solar system, only three moons orbit the terrestrial planets, motivating the question of whether Earth-mass exoplanet systems can sustain long-lived, tightly packed satellites. We investigate the stability limits of an Earth-mass planet orbiting a Sun-mass …

Percolation-Induced Thermo-Rheological Transitions In Biobased Graphene Nanoplatelet Nanofluids, Abiodun A. Saka, Tobechukwu K. Abor, Anthony C. Okafor, Monday U. Okoronkwo

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Biobased lubricants with thermally responsive rheology are increasingly needed for high-efficiency mechanical systems. Graphene nanoplatelet (GnP) nanofluids in vegetable oils are promising candidates, yet their percolation-driven thermo-rheological transitions remain insufficiently understood. In particular, the coupled concentration–temperature landscape controlling network-mediated flow transitions has not previously been established. Here, surfactant-free GnP nanofluids were prepared in high-oleic soybean oil (HOSO) at concentrations of 0.025–2.15% v/v (ϕ), and their rheological response was mapped between 25°C and 80 °C under steady-shear and oscillatory conditions. Below the percolation threshold (ɸ ≤ 0.1% v/v), the nanofluids exhibit near-Newtonian behavior, moderate reversible viscosity enhancement, and classical Arrhenius-type temperature …

Remixing Dialogue: A Case Study On Perceptions Of Hip Hop Pedagogy In A Professional Learning Course, Kelly J. Thelen

Dissertations, Theses, and Projects

This qualitative case study examines how teachers’ decision-making and professional autonomy shift while participating in a Hip Hop Pedagogy Professional Learning course supported by structured FIXIT (Lo & Wachter, 2023a, 2023b, 2023c, 2023d; Wachter & Lo, 2024) game-facilitated dialogue in a rural, culturally and linguistically diverse Midwest community. Grounded in Freire’s (1970) Critical Pedagogy, Ladson-Billings’ (1995) Culturally Relevant Pedagogy, Culturally Sustaining Pedagogy (Paris and Alim, 2017), and Adult Learning Theory (Knowles et al., 2005), the study explores the reclamation of agency by teachers in a time of constrained creativity and educator autonomy shaped by strict policy environments, an emphasis on …

Developing Field And Spaceflight Microscopy, Nikki Johnston

Dissertations and Theses

Designing for spaceflight favors the reduction of unnecessary features and cost-cutting, whether thisbe computation, hardware, or procedure. Resources are spent toward fortification and mission success over convenience. Such design goals paired with the relatively smaller budgets of academia lead us to do as much as we can in-house and use open-source as much as we can without compromising mission success. We also believe that thoroughly testing technology in extreme environments on earth is necessary for the success of a flight instrument. We focus on microscopy for life detection. I have spent my time here learning methods of hand-building microscopes to …

Website: Home, Zhiqu Lu, Likun Zhang, Lei Cao

Gulf Research Program Data Sets

No abstract provided.

Website: Latest Results, Zhiqu Lu, Likun Zhang, Lei Cao

Gulf Research Program Data Sets

No abstract provided.

Website: News And Events, Zhiqu Lu, Likun Zhang, Lei Cao

Gulf Research Program Data Sets

No abstract provided.

Digital Presence In Live Hybrid Performance, Luke Cargill

Dartmouth College Master’s Theses

This thesis examines how digital presence, the sense that a digital performer is socially and performatively "there," is designed and tested in live hybrid performance. Drawing on four practice-based projects (Vicarious, Voltage, Vicarious: Encore Edition, and SUPER BLOOM), the first phase identifies a recurring but empirically untested claim: that digital presence depends on interactivity and co-presence with live performers, though these factors were always entangled in practice.

The second phase tests this claim directly. A new mini-performance, featuring the first fully AI-driven digital character in this line of work, was produced for controlled comparison. Using a 3 (intro type: AI-driven, …

Locker Room To The Classroom, Bert Wicks

Masters Theses

This thesis sought to explore the feasibility of using graduated collegiate athletes to supplement teaching populations to mitigate the teaching shortage in America. The researcher interviewed five professionals in education and five current college athletes to assist in answering two research questions. What are the perceptions of school administrators regarding the employment of former collegiate athletes as public-school teachers, in comparison to educators with formal academic training in education, and what are the attitudes of current and former collegiate athletes on the prospects of pursuing careers in public school teaching relative to employment opportunities aligned with their academic major were …

Toward Design-To-Fabrication Continuum For Open-Source Computational Robotic Ecologies In The Post-Anthropogenic Era, Celso Urroz

Electronic Theses and Dissertations 2020 - Present

Computational design and robotic fabrication have expanded architecture’s capacity to coordinate geometry, material behavior, machine operation, and environmental performance. Yet many design-to-fabrication workflows remain structured by industrial logics of separation, standardization, and control. Design is often abstracted from material execution, fabrication is treated as a downstream phase, and robotic systems remain concentrated within specialized or proprietary infrastructures. This dissertation addresses this problem by proposing the design-to-fabrication continuum as an open, transferable, and ecologically situated framework in which computation mediates among design intent, matter, machine, environment, and shared technical knowledge.

The research uses a practice-based methodology combining computational workflow development, material …

Entire Volume Journal Of Banking And Financial Economics 2026, 1(25)

Journal of Banking and Financial Economics

Entire Volume Journal of Banking and Financial Economics 2026, 1(25)

Flexible Power Point Tracking For Active Frequency Regulation In Grid-Connected Photovoltaic Power Plants, Castor K. Haule, Sophia D. Kigodi, Emmanuel S. Matee, Francis Mwasilu

Tanzania Journal of Science

The increasing penetration of photovoltaic (PV) systems into modern power grids necessitates advanced control strategies capable of supporting grid stability. Traditional PV systems rely on Maximum Power Point Tracking (MPPT) to maximize energy extraction, limiting their ability to participate in grid-support functions such as frequency regulation or power curtailment. This paper presents a flexible power point tracking (FPPT) control strategy that enables PV systems to operate at arbitrary points along the power–voltage (P–V) curve. A multi-mode power management scheme is proposed, integrating conventional Perturb and Observe (P&O) MPPT with FPPT, allowing the system to switch dynamically between energy maximization and …

Influence Of Silar-Deposition Cycle On The Tunable Optical Property Of Thallium Sulphide Thin Films Through Copper Doping And Variable Concentration, Qasim A. Adeniji, Surajudeen O. Azeez, Khadijat K. Babalola, Temitope O. Fowodu, Muhammad A. Salihu, Lateefah O. Adebayo

Tanzania Journal of Science

The study reported the effect of SILAR-deposition cycle on the tunable optical property of Thallium Sulphide Thin films through copper doping and variable concentration. TlS:Cu thin films were prepared using successive ionic layer adsorption and reaction (SILAR) technique from the aqueous solution of thallium chloride (TlCl), copper (II) chloride dihydrate (CuCl 2 .2H 2 O), thiourea, and trisodium citrate (TSC) while ammonia (NH 3 ), triethanolamine (TEA) and ethylenediaminetetraacetate (EDTA) were used as pH adjuster and complexing agent, respectively. The detailed characterization of the Optical properties of the thin films were investigated using UV-Vis spectrophotometer. The optical results studies revealed …

Optimization Of Gas Consumption, Cost And Production Rate For Computerized Numerical Control Oxy-Acetylene Flame Cutters, Eustace K. William, Simon I. Marandu, Enock W. Nshama

Tanzania Journal of Science

This study examined the impact of flame cutting parameters (i.e., cutting speed, plate thickness and nozzle diameter) on oxy-acetylene gas consumption, cost and production rate. A full factorial design of experiments was used to generate 27 experiments, which were conducted using a CNC flame cutter. The analysis of variance (ANOVA) method was used to determine significant process parameters, followed by regression analysis using the MINITAB ® software. The technique for order preference by similarity to ideal solutions (TOPSIS) was used to determine the optimal cutting parameters for minimizing the consumption and cost estimation of oxy- acetylene gas and maximizing the …

Mitigation Of Power Quality Problems In Songwe Power Distribution Line Using A Static Distribution Compensator, James Mhame, Emmanuel Matee, Francis Mwasilu, Sophia D. Kigodi

Tanzania Journal of Science

The Songwe electrical distribution system is prone to severe voltage drops that lead to frequent power outages in long feeders, light flickering, and the multi-operation of equipment and other appliances. The voltage at the switching station averaged 27.6 kV, 28.21 kV, and 25.79 kV in the years 2023, 2022, and 2021, respectively. Additionally, the maximum was 32.2 kV, below the nominal voltage, and the feeder has a very low power factor, which drops to 0.6 during peak hours. Currently, TANESCO uses automatic voltage regulators connected to a distant location from the switching station to two feeders with critical voltage drop …

Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 16 Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

This Butte Priority Soils Operable Unit (BPSOU) Insufficiently Reclaimed (IR) Site Evaluation Summary Report (SESR) presents results of soil sampling conducted on August 12, 2022, at the IR source area Butte Reclamation Evaluation System (BRES) No. 16 – Curry Site and adjacent areas (referred to herein as Site) within the BPSOU. The BPSOU Consent Decree (CD) required further evaluation of this IR Site since reclamation was conducted in 1991, prior to establishment of the Butte Hill Revegetation Specifications (BHRS) (EPA, 2020) and because the Site did not meet BRES requirements during the 2017 assessment performed by the Clark Fork Watershed …

Hydrogeophysical Assessment Of Groundwater And Saltwater–Freshwater Interface In A Quaternary– Neogene Coastal Aquifer, Kilwa Kisiwani Island, Southeast Tanzania, Simon R. Melchioly

Tanzania Journal of Science

This study aims to identify and explore new potential sites of groundwater resources using geophysical methods, and to demarcate the depth to the saltwater-freshwater interface. Kilwa Kisiwani Island is geologically covered mostly by Neogene and Quaternary alluvial sediments, sand and gravel. The geophysical techniques employed during the research include Vertical Electrical Sounding (VES), Electrical Resistivity Tomography (ERT), and Transient Electromagnetics (TEM). The Island has the potential for groundwater occurrences, but the layer with fresh water is shallow and thin. Out of the 18 VES sites, 2 (11%) points have shown non-potential, but the remaining 16 (89%) of the VES sites …

Simulated Versus Non-Simulated Imputed Data: A Comparison Of Handling Missing Data Techniques For Numerical Covariates, Rahibu A. Abassi, Rocky R.J. Akarro

Tanzania Journal of Science

Missing data poses a great challenge in much research, and if not appropriately handled, can negatively impact the analysis and bias the results and study conclusions. This article assesses the performance of numerous methods used to impute missing data by using Root Mean Squared Error (RMSE) under various missing data proportions and two common missingness mechanisms, namely Missing at Random (MAR) and Missing Completely at Random (MCAR). RMSE values were used to judge the accuracy of imputation techniques using real data and across different simulation settings. The results showed magnitude of RMSE increased with increased proportions of missing data, regardless …

Draft Final 2023 Reclamation Improvement Sites Sampling: Bres No. 17 – Paymaster Dump Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

This Butte Priority Soils Operable Unit (BPSOU) Reclamation Improvement (RI) Site Evaluation Summary Report (SESR) presents results of soil sampling conducted on October 11, 2023, at the Butte Reclamation Evaluation System (BRES) No. 17 – Paymaster Dump Site and adjacent areas (referred to herein as Site) within the BPSOU. The BPSOU Consent Decree (CD) (referred to herein as BPSOU CD; EPA, 2020) Appendix D, Attachment C Further Remedial Elements Scope of Work (FRESOW) prescribed further evaluation of sites reclaimed prior to establishment of the Butte Hill Revegetation Specifications (BHRS) (Appendix A to the BPSOU CD), which were initially established in …

Quantification Of Uncertainty Propagation For Transient Heat Transfer In A Hollow Sphere, Rama Subba Reddy Gorla, Lochlan Joyce, Elie John Barbari

Faculty Publications

Uncertainty propagation and transient heat transfer for a hollow sphere are analyzed. The stochastic Biot number, stochastic linear non-dimensional initial conditions, and various boundary conditions are introduced to define uncertainty propagation influencing the temperature distribution throughout the hollow sphere. The resulting uncertainty amplitude was observed to have transient evolution in time. The uncertainty can either increase or decrease depending on the stochastic parameters. Results are presented for the variation in temperature due to uncertainties in the initial conditions and particular boundary conditions.

Secondary English Teachers' Experiences Of Supporting Literacy Using Books That Support Diversity And Inclusion: A Hermeneutic Phenomenology, Tremonisha L. Putros

Doctoral Dissertations and Projects

The purpose of this hermeneutic phenomenological study was to explore the use of supporting BIPOC students’ literacy with books that support diversity and inclusion for secondary English teachers in the United States. The theory guiding this study is Bandura’s social cognitive theory, as it stresses personal student engagement in individual learning tasks. The Central Research Question asks: What are the lived experiences of secondary English teachers who support BIPOC students’ literacy with books that support diversity and inclusion by teaching a novel with a BIPOC protagonist in a predominantly BIPOC class? Employing a qualitative methodology, this hermeneutic phenomenology examined the …

A Causal-Comparative Study Of The Differences Existing Between Elementary, Middle, And High School Faculty And Staff Members Perceptions Of Their Mtss/Rti Skills, Vanessa F. Harriman

Doctoral Dissertations and Projects

The purpose of this quantitative, causal-comparative study was to explore the relationships between the independent variable, school level (elementary, middle, high), and the dependent variables of faculty and staff perceptions of his/her own ability to implement MTSS/RTI when applied to academic content (Null Hypothesis One), behavioral content (Null Hypothesis Two), and the construction and use of data displays (Null Hypothesis Three). This study was critical because it added to the literature concerning MTSS/RTI implementation in middle and high schools while comparing their data to elementary schools. This study used a convenience sample of faculty and staff of public-school districts in …

Examining High School Special Education Teachers’ Experience Implementing Social-Emotional Curriculum In Public Schools: A Transcendental Phenomenological Study, Trisha Rae Dorsey

Doctoral Dissertations and Projects

This transcendental phenomenological study examined the experiences of high school special education teachers implementing social-emotional learning in Capitol County Public Schools, guided by Bandura’s social cognitive theory. The study explored how professional development, teacher self-efficacy, institutional support, and perceived student outcomes influenced social-emotional learning implementation. A transcendental phenomenological design examined the shared experiences of 11 teachers using interviews, follow-up surveys, and document analysis. Three themes emerged: (a) instructional practices and social-emotional learning integration, (b) implementation experiences and challenges, and (c) perceived student outcomes. Participants identified positive teacher–student relationships, behavioral modeling, and embedded SEL instruction as essential to implementation, while professional …

An Analysis Of Artificial Intelligence Systems On The Teaching Of Music Improvisation, Composition, And Instrumental Pedagogy, Carter K. Murphey

Doctoral Dissertations and Projects

Artificial intelligence (AI) has experienced a significant boom in the first half of the 2020s and has significant implications for the fields of music composition, music production, and music education. AI Large language models (LLMs) such as ChatGPT are frequently used sources for students on a wide range of academic subjects, and can provide in-depth, well-informed and eloquently written explanations in a matter of seconds. Music generative AI programs such as Suno and UDIO can almost instantaneously compose and produce musical recordings from word-generated prompts from users. Noise cancelling AI software such as Moises can create isolated instrumental tracks from …

The Lived Experiences Of Secondary Teachers In Supporting Literacy Growth Among Students In Secondary School: A Transcendental Phenomenological Study, Emanuel Arboleda

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study is to explore the lived experiences of teachers in supporting literacy among secondary students at a suburban secondary school in Connecticut. The lived experiences of literacy limitations among students were generally defined as a lack of literacy resources or inconsistent literacy support across courses and grade levels. Bandura’s social cognitive theory guided this study, particularly regarding the cognitive, behavioral, and environmental experiences of teachers and their students’ literacy limitations. The Central Research Question was: What are the experiences of secondary teachers in supporting literacy growth among students? This transcendental phenomenological study on literacy …

The Posture Of Recovery; A Quantitative Analysis Of Post-Exercise Heart Rate Restorateion In College Athletes, Matthew Scott Ferriter

Doctoral Dissertations and Projects

Heart rate recovery (HRR) has been frequently used as a noninvasive indicator of autonomic reactivity following high-intensity exercise. However, limited research has explored the effects of post-exercise body posture (PEBP) on HRR following acute bouts of high-intensity exercise in collegiate athletes. The purpose of this quantitative repeated-measures experimental study was to investigate if recovery posture (supine [SUP]; tripod [TRI]; standing upright [SU]) affected HRR during the first five minutes following a standardized high-intensity interval training (HIIT) session. Thirty-seven collegiate athletes completed three total testing sessions. Participants completed all three recovery posture conditions in a randomized order. Heart rate (HR) was …

Relationships Between Lower Body Anthropometrics And Vertical Force-Velocity Profiles In Collegiate American Football Players, Nicholus Adam Despot

Doctoral Dissertations and Projects

The study examined the relationships between lower-body anthropometric characteristics and vertical force-velocity profiles in collegiate American football players. Although the use of force-velocity profiling has increased significantly in recent years, there has been limited research on the association between structural features and key mechanical outputs. A sample of 16 NAIA football players was used to examine how skeletal breadths, girths, and derived ratios relate to key force-velocity metrics. Anthropometric variables were collected using ISAK standards, while force-velocity profiles were obtained through a series of loaded squat jumps on a force platform. Mean propulsive force, velocity and power were used to …

The Empathy Equation: Nontraditional Students Recruited With A Transformational Approach - A Hermeneutic Phenomenological Study, Ashley E. Sempowski

Doctoral Dissertations and Projects

The purpose of this hermeneutic phenomenological study was to examine the influence that individualized, student-centric, transformative recruitment and communication efforts had on university student choice for nontraditional students at a private four-year university. The theory guiding this study is Bronfenbrenner’s ecological systems theory, as it explains how an individual’s environmental system and contexts influence their human development and decision making, and how these developments can be seen as predictors of student choice, retention, academic preparedness, and performance. This hermeneutic phenomenological study was conducted through interviews, focus groups, and reflective writing prompts with 10 nontraditional students at a private, four-year university. …

Exploring Experiences Of Home Education Parents In Homeschool Curriculum Modification: A Transcendental Phenomenological Study, Anne Elizabeth Smoak

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study is to explore the experiences of home education parents modifying the curriculum at their homeschool. The theory guiding this study is the expectancy-value theory, as it shows the connection between attainment value, intrinsic value, and utility value in the context of parents who choose to modify home education. The central research question is as follows: What are the lived experiences of parents modifying curriculum at their homeschool? The examination of these experiences was explored using a qualitative methodology for the research, and the chosen research design for this study is a transcendental phenomenological …

Exploring Social Cognitive Learning In Simulation-Enhanced Interprofessional Education: A Case Study, William Nicholas Vasios Iii

Doctoral Dissertations and Projects

The purpose of this single-case design study is to explore the impact of observational and vicarious learning during simulation-enhanced interprofessional education (Sim-IPE) on the confidence and perceived self-efficacy of nursing students and IM residents at a southeastern university. Guided by Bandura’s social cognitive learning theory, which addresses the personnel, behavioral, and environmental factors of Sim-IPE, while answering the central research question: How does observational and vicarious learning during Sim-IPE impact participant confidence and perceived self-efficacy? This qualitative single-case study was conducted at a university in the southeastern United States, using data collected through visual confidence analog scale surveys, interviews, and …