Digital Commons Network^™

Trustable Adaptive Controllers For Multi-Agent Systems With Actuator Dynamics, Atahan Kurttisi

Doctoral Dissertations and Master's Theses

Multi-agent systems have become a powerful tool for a wide range of applications due to the effective and cheap solutions they offer. Especially during the last decade, they have impacted a wide array of civilian and military applications (e.g., surveillance, reconnaissance, and payload transportation). However, they suffer system anomalies due to the operational and material conditions, which yields degraded performance or even instability. Hence, this dissertation investigates the distributed adaptive control design process for uncertain multi-agent systems with scalar and high-order dynamics in the presence of unknown control effectiveness and actuator dynamics. First, it provides an approach for driving a …

Initial Orbit Determination Of Uncooperative Satellites Using Particle Swarm Optimization From The Point Of View Of A Novel Observer Orbit, Taylor Yow

Doctoral Dissertations and Master's Theses

Initial orbit determination is an incredibly valuable tool in the field of space situational awareness (SSA). As the number of launches increases every year, more objects are being put into space around the Earth and with political tensions mounting between certain space-accessing countries such as the United States of America (USA), Russia, and China, the number of satellites whose orbits are unknown to a political rival are increasing as well. In this research, orbit estimation of uncooperative target satellites from the point of view of novel orbits using particle swarm optimization (PSO) algorithm is explored. Two cost functions for the …

Reliable Identification Of Binary Supermassive Black Holes From Rubin Observatory Time-Domain Monitoring, Megan C. Davis, Kaylee E. Grace, Jonathan R. Trump, Jessie C. Runnoe, Amelia Henkel, Laura Blecha, W N. Brandt, J Andrew Casey-Clyde, Maria Charisi, Caitlin A. Witt

Faculty Publications

Periodic signatures in time-domain observations of quasars have been used to search for binary supermassive black holes (SMBHs). These searches, across existing time-domain surveys, have produced several hundred candidates. The general stochastic variability of quasars, however, can masquerade as a false-positive periodic signal, especially when monitoring cadence and duration are limited. In this work, we predict the detectability of binary SMBHs in the upcoming Rubin Observatory Legacy Survey of Space and Time (LSST). We apply computationally inexpensive sinusoidal curve fits to millions of simulated LSST Deep Drilling Field light curves of both single, isolated quasars and binary quasars. The period …

Synchronized Bionic Hand: Harmonizing Robotics With Rhythm, Deven Ayambem , '24

Senior Theses, Projects, and Awards

This report explores the therapeutic potential of rhythmic movement to music, focusing specifically on the "wave dance" movements of the human hand. Utilizing a mechanical analog, the study models the hand as a system of five interconnected mass-spring-dampers to simulate the dynamic and kinematic responses of the hand's joints to rhythmic stimuli. Through a combined approach of MATLAB simulation and physical modeling with servo motors controlled by Arduino, the project aims to quantify and visualize the effects of rhythmic movements on joint dynamics. The simulation employs the mass-spring-damper system to represent each joint and uses an impulse response approach to …

Myoelectric Robotic Hand To Play Guitar, Oliver Garcia , '24

Senior Theses, Projects, and Awards

Around 5.6 million people in the US have had an amputation or were born with limb difference. Some of these people find prostheses to be useful devices that allow them to perform desired activities that would otherwise be difficult or impossible to carry out. One form of prosthetic that, as far as I have found, has not been developed, is one for fretting chords on a guitar. Such a prosthetic would require multiple degrees of freedom for each finger, fine motor control, as well as quick actuation and signal interpretation. Most general purpose robotic prostheses today are either far too …

Universal Design For Learning (Udl)- Strategies For Engaging Rural Youth Co-Researchers With Informal Stem Learning, Amanda Bastoni, Jayson Seaman, Andrew D. Coppens, Cindy Hartman, Kate Moscouver, Courtnie Lachaine

Faculty Publications

This article describes methods and findings from a study focused on youth living in rural communities in northern New Hampshire who struggle with accessing STEM learning opportunities for reasons including economic underinvestment and geographical isolation. These challenges also negatively impact researchers hoping to learn how rural youth benefit from informal STEM learning experiences, which contribute to low-project participation and retention rates. As in other amenity-rich rural areas, the communities in this study are promoting outdoor recreation as a vehicle for economic development. We wanted to understand if outdoor recreation activities tied to economic growth initiatives — activities which youth have …

Establishing Practical Equivalence Of Factor Loadings In Multigroup Confirmatory Factor Analysis, Christopher Edward Shank

Dissertations

This dissertation compares the performance of equivalence test (EQT) and null hypothesis test (NHT) procedures for identifying invariant and noninvariant factor loadings under a range of experimental manipulations. EQT is the statistically appropriate approach when the research goal is to find evidence of group similarity rather than group difference; despite this, the conventional approach to measurement invariance analysis relies upon NHT. EQT has proved effective for invariance detection using global model-data fit statistics in simulated and real-world data (Counsell et al., 2020) but its use in partial measurement invariance (PMI) analysis for evaluation of factor loading differences between groups has …

A Third Way: Christian Philosophy Of Music, Eric S. Gardner

Senior Theses

Philosophers have posed many difficult-to-answer questions regarding music. For example, what counts as beautiful music? Can beauty be objectified, or is beauty in the eye of the beholder? What counts as a performance of a piece of music? Besides, what counts as music anyways? Where does the noise stop, and where does the music begin? In this thesis, I want to show that the Christian worldview offers the philosophical building blocks to answer these questions. By working with biblical truths and Christian presuppositions, I hope to show that the Christian worldview can offer satisfying answers to these philosophical questions.

The Arabic Influence On The Spanish Language: Sociocultural Mechanisms Of Language Change Under Islamic Rule In The Iberian Peninsula, Reagan Borland

Senior Theses

After Latin, which makes up about 75-80% of the Spanish lexicon (Comparán Rizo, 2006, p. 17), Arabic is the most important linguistic contributor to the branch of Romance languages that would come to be known as Spanish or Castellano (Castilian), surpassing Germanic influence and that of other contributors such as French and Celtic languages. The broad range of Arabisms found in Spanish can be attributed to certain cultural and social changes that took place under Arab-Muslim rule in the Iberian Peninsula between 711 and 1492 and during the period following the so-called “Reconquista” of Spain by the Christian kingdoms to …

Elevating Academic Administration: A Comprehensive Faculty Dashboard For Tracking Student Evaluations And Research, Musa M. Azeem

Senior Theses

The USC Faculty Dashboard is a web application designed to revolutionize how department heads, professors, and instructors monitor progress and make decisions, providing a centralized hub for efficient data storage and analysis. Currently, there’s a gap in tools tailored for department heads to concisely manage the performance of their department, which our platform aims to fill. The USC Faculty Dashboard offers easy access to upload and view student evaluation and research information, empowering department heads to evaluate the performance of faculty members and seamlessly track their research grants, publications, and expenditures. Furthermore, professors and instructors gain personalized performance analysis tools, …

Teacher Retention In Independent Schools, Charles Maddox Jr.

Doctor of Education (Ed.D)

Teachers in public and independent schools have left the field of education at a staggering rate. The purpose of this qualitative case study was to understand what factors kindergarten through 12th-grade teachers describe as influencing their decisions to remain in independent day schools in Florida. For the purpose of this study, independent education is defined as private schools. Five participants were interviewed for the study. The two themes developed in the study were differences from public schools and school leadership. The subthemes for differences from public schools were flexibility, teacher autonomy, and freedom from government control while subthemes for school …

On Adaptivity And Randomness For Streaming Algorithms, Manuel Stoeckl

Dartmouth College Ph.D Dissertations

A streaming algorithm has a limited amount of memory and reads a long sequence (data stream) of input elements, one by one, and computes an output depending on the input. Such algorithms may be used in an online fashion, producing a sequence of intermediate outputs corresponding to the prefixes of the data stream. Adversarially robust streaming algorithms are required to give correct outputs with a desired probability even when the data stream is adaptively generated by an adversary that can see all intermediate outputs of the algorithm. This thesis binds together research on a variety of problems related to the …

Optimal Selection And Investment-Allocation Decisions For Sustainable Supplier Development Practices, Chunguang Bai, Kannan Govindan, Dileep G. Dhavale

School of Business

Organization’s sustainability performance is influenced by its suppliers’ sustainability performance. This relationship makes sustainable supplier development a strategic competitive option for a buyer or focal organization. When considering sustainable supplier development practices (SSDPs) adoption, organizations have to balance and consider their limited financial resources and operational constraints. It becomes necessary to both select the best SSDPs set and investment allocation among the selected SSDP set such that the organization can maximize overall sustainability performance level. In this paper, an integrated formal modeling methodology using DEMATEL, the NK model, and multi-objective linear programming model is used support this objective. The proposed …

Uav-X Communication: Empirical Characterization And Performance Optimization, Muhammad Hashir Syed

Electrical Engineering Theses and Dissertations

In emerging wireless networks, the scalability of deploying drones presents an opportunity to design extensive aerial networks. These networks could effectively monitor large agricultural fields from the air and soil for food production with efficient resource utilization. On the one hand, unmanned aerial vehicles (UAVs) have gained interest in agricultural aerial inspection due to their ubiquity and observation scale. On the other hand, agricultural internet-of-thing devices, including buried soil sensors, have gained interest in improving natural resource efficiency in crop production. In this work, we investigate the natural interaction of these two phenomena, where UAVs can be leveraged as flying …

Using Leadership And Peer Instructional Coaching To Improve Communication And Classroom Instruction, Dedric Antwon Porter

Master's Theses & Capstone Projects

This paper looks at the partnership between several components in a school's community and how they could connect better to create a culture that defines a school community. The purpose is to provide an overview of how these parts, the administration, educators, students, and parents could work together throughout the school year to create the foundation of the school’s community and culture. In recent years, school administrators have hired instructional coaches to improve the quality of education provided to the students. Studies have shown that having an instructional coach can have a significant positive impact on a teacher's classroom performance. …

Spiral Review In A Middle School Mathematics Classroom, Haley Birks

Master's Theses & Capstone Projects

The purpose of this action research project was to determine the relationship between daily spiral review bell ringers and students' assessment scores. The research was driven by the problem of students reaching the end-of-year assessments and being unable to remember material they had learned throughout the year. A quantitative study was used to determine the effectiveness of a ten-week spiral review intervention. The researcher is a seventh and eighth grade math teacher in her fifth year of teaching. Data was collected from a pre-test and post-test created by the researcher consisting of material from the Common Core State Standards and …

Comparing Ipad And Flash Card Interventions For Enhancing Math Performance In Addition And Subtraction Facts, Taylor Huber

Master's Theses & Capstone Projects

This action research was driven by the researcher's interest in increasing students' math fact knowledge. The researcher implemented both an iPad and flash card intervention to determine and compare the effectiveness of each. Two-minute addition and subtraction probes were utilized as a pre and post-test to determine growth. A student survey was also given to determine students' interest in their respective intervention. The findings revealed that both interventions resulted in growth in both addition and subtraction facts, but there was no significant difference in growth between the two. The findings also revealed that most students found both the iPad and …

Tier 2 Interventions, Candace Sutton

Master's Theses & Capstone Projects

The school improvement plan is to develop a process to implement an effective tier 2 intervention plan as part of the Multi-Tier System of Supports (MTSS). Three themes emerged: need for professional development, ways to schedule interventions and how to use data-based decision-making. Professional development will occur during pre-service days. During professional development teachers will learn methods of intervention, how to use data to drive interventions and utilizing standards in tier 2 interventions. Department teams will meet and analyze data to create and identify interventions for students in need. Finally, the plan proposes RTI scheduling during protected time at the …

Using Small Groups To Support Mathematics Learning In Preschool, Katelyn Bradfield

Master's Theses & Capstone Projects

The purpose of this action research project was to gather data on the use of small group learning as a setting for increasing number sense skills for preschool students. The researcher met with a classroom of preschool students over the course of 6 weeks, one week for pre-assessment, four weeks for playing math games in the small group setting, and one week for post-assessment, to implement the intervention. The quantitative research gathered was analyzed to determine whether the addition of small group math time was impactful in increasing student number sense in the areas of 1:1 counting and numeral identification. …

Improving Elementary Literacy Achievement By Aligning Individual And Team Goals, Katie Hilby

Master's Theses & Capstone Projects

Recent research suggests that the COVID-19 pandemic negatively impacted literacy achievement. A school improvement plan was created to improve literacy achievement by leveraging the positive effects of individual and team goal-setting on student motivation and student achievement. Past studies have shown that growth and learning goals are more effective than performance goals and that a combination of distal and proximal goals lead to optimal performance. This school improvement plan uses the Leader in Me framework to set proximal and distal goals, aligning all individual student goals with the school’s team goal, to improve literacy achievement.

Implementing Universal Design For Learning In The Inclusive Early Childhood Classroom, Lydia Bruns

Master's Theses & Capstone Projects

The purpose of this action research project was to determine what makes implementation of Universal Design for Learning (UDL) effective in the early childhood classroom. Participants were a class of sixteen preschoolers including five students with identified disabilities, one student with a possible disability, and five students who are Dual Language Learners. Qualitative data was collected twice a week to mark and observe strategies being used during large group and small group instruction times. Notes were collected within qualitative data to note how each strategy was implemented and compared with lesson plans. An emergent themes analysis was done on all …

Child Development Homes, Play-Based Learning, And Academic And Social-Emotional Skills, Hollie Fairholm

Master's Theses & Capstone Projects

This action research study was based on my own need to discern if children who attend child development homes, also known as family childcare homes, are effective spaces for children to learn academic and social-emotional skills using play-based learning. In this action research child development home, family childcare and play-based learning were defined, with a review of how children learn. My study was conducted in my own child development home family childcare program with chilren ranging in age from 12 months to 4 years old. In total, nine children attend my program Monday to Friday from 7 a.m. to 5 …

Utrgv Commencement – Spring 2024, The University Of Texas Rio Grande Valley

UTRGV Commencement Programs

No abstract provided.

Understanding The Anthropocene, Monica Kramer , '25, Peter Schmidt

English Literature Faculty Works

The current climate crisis can be a daunting, anxiety-provoking topic. Terms such as “climate anxiety” are brought up because thinking about the prospect of future warming can cause extreme dread. Our current trajectory has even pushed people to forgo having children. Yet although this dread is very warranted and cannot be minimized, simply fearing for the future does not present any solutions to improving it. Ecopoetry can give us a window into helping deal with our grief, and can also suggest solutions for moving forward. This anthology presents poems that do both, helping us to better understand our current era …

Mediating Effect Of Bmi On The Association Of Economic Status And Coexistence Of Hypertension And Diabetes In Bangladesh: A Counterfactual Framework-Based Weighting Approach, Foyez , Md. Jamal Hossain Ahmmed, Md. Jamal Hossain, Md Tareq Ferdous Khan, Muhammad Mahabub Rahaman Manik, Saimon Shahriar, Dulal Chandra Nandi, Md Parvej Hussain

Mathematics and Statistics Faculty Publications

Background and Aims

Non-communicable diseases such as hypertension and diabetes are matters of huge concern worldwide, with an increasing trend in prevalence over the previous decade. First of all, this study aimed to evaluate the association between economic status (ES) and body mass index (BMI), ES and comorbidity of hypertension and diabetes, and BMI and comorbidity independently. Second, it explored the mediating role of BMI in the association between ES and comorbidity of hypertension and diabetes. Finally, it investigated whether the mediating effect differs with the place of residence, gender, and education levels.

Methods

A total of 11,291 complete cases …

Exs 2000 Exercise, Energy Balance, And Weight Management Oer Syllabus, Shannon Caravello

Open Educational Resources

Concepts and principles of energy balance, body composition, weight management, and physical activity as they relate to personal health. Examines the causes of obesity, and its impact on human health and explores weight loss and diet options for the individual from a holistic perspective, including social, emotional, and physical dimensions of human health. Students will complete a lifestyle and nutritional analysis, develop nutritionally sound dietary plans, and design a specialized exercise program tailored to address their personalized weight management goals.

For Students, By Students: A Python Programming Manual For Structural Engineering Courses, Anahid Behrouzi, Kennedy Gomez, Aaron Dewey, Meileen Yee

Architectural Engineering

Learning to program is challenging enough for structural engineering students without the complexity of using a textbook with examples from unfamiliar engineering and scientific fields. Moreover, the open-source nature of Python means each library has a separate documentation website to navigate, discern what functions are useful, and how to implement them.

The idea of a senior project to develop a Python manual tailored to structural engineering students came from the authors’ experiences in three structural analysis/dynamics computing labs in Cal Poly in San Luis Obispo’s architectural engineering (ARCE) curriculum. The team recognized the barriers, lack of confidence, and frustration that …

Circle Packings From Tilings Of The Plane, Philip Rehwinkel , '22, Ian Whitehead, David Yang , '24, Mengyuan Yang , '25

Mathematics & Statistics Faculty Works

We introduce a new class of fractal circle packings in the plane, generalizing the polyhedral packings defined by Kontorovich and Nakamura. The existence and uniqueness of these packings are guaranteed by infinite versions of the Koebe–Andreev–Thurston theorem. We prove structure theorems giving a complete description of the symmetry groups for these packings. And we give several examples to illustrate their number-theoretic and group-theoretic significance.

The Guardian The Month Of April 2024, Wright State Student Body

The Guardian Student Newspaper

News articles from The Guardian for the Month of April 2024. The Guardian is the official student-run newspaper for Wright State University. It has been published regularly since March of 1965.

Beyond Technology: Social Predictors Of Energy Efficiency In Industrial Facilities, Garret B. Cowdery

Honors Theses

Energy is the lifeblood of the industrialized world with electrical energy expected by the National Renewable Energy Laboratory (NREL) to increase 25% between 2016 to 2050 in the United States. Combined with the ever-present climate crisis, energy-efficient buildings are becoming increasingly important to conserve resources and alleviate strain on aging energy systems. The Industrial Assessment Center (IAC) program through the US Department of Energy aims to reduce the consumption of large, single-site energy users, industrial and commercial buildings, through comprehensive energy audits. Such investigations find that energy-efficient structures are a technological challenge as much as social. The mentality of building …