Digital Commons Network^™

Water Quality Hotspot Analysis On Chlorophyll-A To Monitor Harmful Algal Blooms In Small And Medium Lakes Of North Dakota, Sae Young Lee

Theses and Dissertations

The water quality of recreational lakes degrades with Harmful Algal Blooms (HABs). HABs can block sunlight, lower oxygen levels, and may produce toxins. Industrial and domestic waste and fertilizer runoffs can enrich nutrients for HABs. Chlorophyll-a (Chl-a) is a significant indicator for tracking HABs and has been monitored increasingly using remote sensing techniques. In search for significant trends in hotspots of Chl-a concentrations in small and medium lakes of northeastern North Dakota, Chl-a water samples were collected in summer and fall of 2023. The study lakes include: Fordville Dam Recreation Area, Larimore Dam RecreationArea, Homme Dam Recreation Area, and South …

Evaluating Distributed Software Design Conformance Through Trace Comparison, Reid Barry Anderson

Theses and Dissertations

The design of a system and its implementation are two tasks often carried out by different individuals on a development team and can occur weeks or months apart. This creates a potential for divergence between real behavior and the designed model that the implementation is intended to match. Particularly as time passes and individuals that were present for the original conception of the design leave, a system can begin to lose coherence and drift apart from intended design principles. Even with a robust and high-quality design for a software system, more is needed to guarantee that the key details of …

Advancing Bridge Hydraulic Assessment With Hec-Ras 2d And Bathymetry Modeling In Arcgis Pro Using Hycat Asv Data, Daniel Iancu

Theses and Dissertations

This research centers on verifying an accurate and reliable method in deriving river bathymetry near bridge sites, which leads to critical enhancement of bridge scour analysis. The structural integrity of bridges is paramount, and accurate scour analysis is a cornerstone in civil engineering and public safety. Existing methods, though reliable and very well cemented in practice, may be improved with more precise water velocity estimates, which is essential for thorough bridge scour evaluations. Bridge assessments utilize bathymetry measurements in significant spots and or map out the continuous surface at the bottom of the river. This study seeks to validate if …

Stem Teacher Shortage In American Schools: A Case Study Exploring The Recruitment Of Stem Majors Into Teacher Education Programs, Adekunle Lawal

Theses and Dissertations

There has been a STEM (science, technology, engineering, and mathematics) teacher shortage in K-12 schools across the United States (Klassen et al., 2021; Luft et al., 2005). To help provide a possible solution to the nationwide STEM teacher shortage, this study investigated the factors that influence STEM majors to change careers from STEM disciplines to teaching. In the current study, six American STEM teachers who have switched careers from the STEM profession to the teaching field were interviewed to find out the factors that led them to change careers; and how schools of education could use these factors in creating …

A Uav Payload And A Smart Graphical User Interface For Real-Time Detection Of Defects In Steel Structures, Rajrup Mitra

Theses and Dissertations

As integral parts of different infrastructure constructions, steel structures must be monitored regularly for their durability, serviceability, and safety. However, environmental exposure of steel structures leads to defects over time that may compromise the structural integrity and lead to colossal repair costs if not detected early. Traditional manual inspection methods have limitations like accuracy constraints, inefficiency, and non-scalability. Hence, there is a need for cutting-edge technology-based solutions to streamline inspection processes. Thus, this thesis proposes a pioneering exploration into the development and integration of an Unmanned Aerial Vehicle (UAV) system and an intelligent Graphical User Interface (GUI) for real-time defect …

Using An Airship Design To Extend A Small Uncrewed Aircraft Flight Endurance, Joseph Reilly

Theses and Dissertations

One limitation of uncrewed aircraft is being unable to fly as long as needed for some operations, such as linear inspection. This research explores the flight endurance of an uncrewed aircraft using airship design. It investigates the benefits of using an airship design to increase the efficiency and extension of the flight of a small, uncrewed aerial system (sUAS). Thus, it is crucial to find ways to augment flight endurance. Two different airframes were built, and flight tested using a lifting gas to provide the lifting force and vectored thrust needed to move. Flight testing captured time in the air …

Modeling Ash Deposition During Oxy-Coal Combustion Of A High Alkali Earth Metal (Powder River Basin) Coal: Insights From Turbulence Modeling, Mohamed Zamzam

Theses and Dissertations

Coal production has waned in recent years despite its historical significance, driven by mounting concerns over climate change and the escalating adoption of renewable energy sources. With coal production in the U.S. expected to continue its decline and stricter environmental regulations looming due to increasing greenhouse gases and SO2 emissions, there is a critical need to identify an economically viable and environmentally friendly coal type. Embracing carbon capture-based technologies such as oxy-fuel combustion without compromising boiler performance is essential in this endeavor. Sub-bituminous coal varieties like Powder River Basin (PRB) coal boast lower sulfur and nitrogen content compared to bituminous …

Vehicle Crashes In Minnesota: Spatial And Temporal Patterns And Contributing Factors To Crash Severity, Bastien Koralalage Pavithra Navodi Rodrigo

Theses and Dissertations

Vehicle crashes represent a critical global issue, resulting in numerous fatalities, injuries, and significant economic and societal impacts. In response, government officials worldwide are developing strategies and policies to enhance road safety and promote sustainable transportation systems, aiming for zero fatalities and injuries. Understanding the causes of crashes is essential for these efforts. This study focuses on identifying spatial and temporal patterns and contributing factors for the crash severity of vehicle crashes in Minnesota. Spatial distribution of crash hotspots is identified and visualized using spatial autocorrelation (global Moran I), hotspot analysis (Getis–Ord Gi*), and kernel density estimation in ArcGIS Pro. …

Roundtable: Issue 3, Brynn Flanders, Miina Okino, Joslyn Jackson, Jenna Coauette, Jocelyn Kennedy

Roundtable: Journal of the UND Honors Program

No abstract provided.

Spring 2024, University Of North Dakota Alumni Association

ALL: UND Alumni Review Master List

Spring 2024 issue of "The University of North Dakota Alumni Magazine." 52 pages

Volume 107, Number 2

Minimally Invasive Therapies In The Treatment Of Arthropathy, Steven Bateman

Physician Assistant Scholarly Project Papers

It is estimated that 27% of adults over 45 years of age suffer from osteoarthritis of the hip secondary to articular cartilage damage over the lifespan. Joint pain diminishes life quality, limits range of motion and overall activity, and frequently impairs basic ambulation. These functional deficits worsen the progression of comorbidities that are often referred to as lifestylerelated chronic disease as physical activity subsequently declines. This literature review explores the efficacy of minimally invasive therapies that precede and delay surgical intervention in adult patients experiencing functional limitations and pain in major joints. The study examines the effectiveness of various interventions, …

Understanding Effective Elastic Properties And Stress-Strain Evolution In Composite Granular Rocks Using Discrete Element Modeling, Prasad Pothana, Fernando E. Garcia, Kegang Ling

Petroleum Engineering Posters and Presentations

The mechanical behavior of composite granular rocks is a multifaceted phenomenon relevant to various geoengineering applications. Traditional homogenization models and continuum mechanics-based numerical methods often fall short of accurately capturing the intricacies of granular materials. Granular materials exhibit heterogeneity and arching mechanisms governing the force networks that ensure system stability. Unlike continuum-based approaches, particulate discrete element methods have an advantage in assessing effective material properties by considering material heterogeneity and grain-level physical interactions. This study evaluates effective elastic properties using particle flow code using flat-joint contact law for composite binary mixtures with a stiff inclusion embedded within a matrix material. …

March 27, 2024, The Dakota Student

The Dakota Student

No abstract provided.

Birds That Live In The Ivy Wall, Katerina Sladko

Floodwall Magazine

No abstract provided.

An Ode To Fiji And Its Visitors, Katerina Sladko

Floodwall Magazine

No abstract provided.

Time Piece, Katerina Sladko

Floodwall Magazine

No abstract provided.

Slice Of Life, Melanie Schindler

Floodwall Magazine

No abstract provided.

Warp Test, Jonathon Sladko

Floodwall Magazine

No abstract provided.

Evaluation Of Infrared Thermography Dataset For Delamination Detection In Reinforced Concrete Bridge Decks, Eberechi Ichi, Sattar Dorafshan

Civil Engineering Faculty Publications

Structural health monitoring and condition assessment of existing bridge decks is a growing challenge. Conventional manned inspections are costly, labor-intensive, and often risky to execute. Sub-surface delamination, a leading cause of deck replacement, can be autonomously and objectively detected using infrared thermography (IRT) data with developed deep learning AI models to address some of the limitations associated with manned inspection. As one of the most promising classifiers, deep convolutional neural networks (DCNNs) have not been utilized to their fullest potential for delamination detection, arguably due to the scarcity of realistic ground truth datasets. In this study, a common encoder–decoder semantic …

Pcor Partnership Atlas, Wesley D. Peck, Kari Suedel, Kyle A. Glazewski, Kevin C. Connors, James A. Sorensen, Charles D. Gorecki, Brian P. Kalk, John A. Harju

EERC Maps and Infographics

The Plains CO₂ Reduction (PCOR) Partnership Atlas provides a profile of CO₂ sources and potential storage locations across the PCOR Partnership region. The revised sixth edition of the Atlas provides an up-to-date look at PCOR Partnership initiative activities, including additional regional characterization and updates on commercial projects. Additional background information on carbon capture, utilization, and storage (CCUS) is included to give a better understanding of how CCUS addresses concerns about climate change while allowing future energy needs to be met.

Arsenate Removal From North Dakota Well Water: Titanium With Mof (Uio-66) Impregnated Carbon Blocks, Mousa Almousa, Yeo Howe Lim, Olusegun Stanley Tomomewo, Mahmut Ersan

Graduate Research Achievement Day Posters

No abstract provided.

Uas-Guided Electric And Magnetic Field Data Distribution Across Transmission Lines, Tanzim Jim Hassan, Jamison Jangula, Akshay Ram Ramchandra, Prashanth Rajagopalan, Prakash Ranganathan, Ryan Adams

Graduate Research Achievement Day Posters

This poster discusses an electric (E) and magnetic (H) field data gathering process across a series of High Voltage (HV) transmission lines. Data was collected from one DC and four AC Transmission (Tx) lines. Multiple DJI UAV (M2EA, M30, and M300) were used to collect E/H field measurements with an onboard set-up. These measurements included parameters such as E field in V/m, H field in mG, Battery voltage in V, Battery current A, Battery percentage in %, Battery Temperature in F, and latitude and longitude. The preliminary findings indicate that distance and sensor orientation affect E/H field distribution.

Low-Temperature Laboratory Instrumentation For Investigating Ice Crystal Aggregate Formation In The Atmosphere, Victor Ojo, Imteaz Osmani, Hallie Boyer Chelmo

Graduate Research Achievement Day Posters

This study addresses the challenge of achieving controlled low temperatures to investigate and provide information on the precise conditions that promote homogenous (≤-38oC) and heterogenous (≥ -38oC) atmospheric ice crystal formation and aggregation, which disrupt aerospace industries and military activity. I present a preliminary design of a novel temperature control setup for generating levitated ice crystal aggregates within a Dual Balance Electrodynamic Trap (DBET). This preliminary design is called the replica low temperature electrodynamic balance (R-LTDBET). The design integrates chilled-coolant-conveying copper tubes encircling the hollow-square-shaped DBET’s external wall to precisely control its inner chamber temperature while incorporating real-time temperature sensing, …

Cybersecurity Challenges And Solutions In Iot-Based Precision Farming System, Shree Ram Abayankar Balaji, Sriram Prabhakara Rao, Prakash Ranganathan

Computer Science Posters and Presentations

Adaptation of technologies such as the Internet of Things (IoT), Unmanned Aerial Vehicles (UAVs), and blockchain in agriculture has revolutionized farming activities, offering several benefits such as increased efficiency, reduced costs, and improved crop yields. However, these advancements also have their fair share of security challenges, opening space for vulnerabilities that adversaries can exploit and compromising agricultural IoT networks, autonomous farming equipment, and vehicles. This may lead to compromised services and devices disrupting farming activities, causing losses to the farmers. This paper captures the state-of-the-art review of IoT-based precision farming systems, including the technological applications, cybersecurity challenges, and mitigation measures …

Experimental Investigation Of Levitated Microdroplets For Understanding Chain Crystal Aggregates Observed In Atmospheric Clouds, Imteaz Osmani, Victor Ojo, Hallie Boyer Chelmo

Graduate Research Achievement Day Posters

This study talks about atmospheric ice crystal aggregation in the atmosphere and the process of generating ice crystal aggregate in a research lab using a dual-balance electrodynamic trap.

February 28, 2024, The Dakota Student

The Dakota Student

No abstract provided.

Integrated Petrophysical Evaluation And Rock Physics Modeling Of Broom Creek Deep Saline Aquifer For Geological Co2 Storage, Prasad Pothana, Ghoulem Ifrene, Kegang Ling

Petroleum Engineering Student Publications

Fossil fuels, such as coal and hydrocarbons, are major drivers of global warming and are primarily responsible for worldwide greenhouse gas emissions, including carbon dioxide CO₂. The storage of CO₂ in deep saline reservoirs is acknowledged as one of the top practical and promising methods to reduce CO₂ emissions and meet climate goals. The North Dakota Industrial Commission (NDIC) recently approved the fourth Class VI permit for a carbon capture and storage project in the Williston basin of North Dakota for the geological CO₂ storage in the Broom Creek formation. The current research aimed to …

Course Lecture: Beyond The Article As The Favorite Piece Of Scholarly Communication, Devon Olson

Librarian Publications

The third of a 5-part series of lectures on scholarly communication, this lecture introduces learners to the ways in which various information architecture structures, such as indexes or natural-language-processing algorithms, impact information access and use. Activities allow students to explore and then teach each other about how the internet has changed over time and exists differently across the world, as well as how practitioners in their own discipline communicate beyond the academic article format.

This lecture was designed for the University of North Dakota School of Medicine and Health Sciences Occupational Therapy Doctorate Program.

This lecture is appropriate for adult …

Course Lecture: The Knowledge Economy, Devon Olson

Librarian Publications

The first of a 5-part series of lectures on scholarly communication, this lecture introduces learners to the scholarly communications landscape by exploring its roots in historical and cultural events such as colonization and the growth of the internet. Two activities enable students to explore the legal implications of reusing various materials as well as the speakers and audiences of top journals in occupational therapy.

This lecture was designed for the University of North Dakota School of Medicine and Health Sciences Occupational Therapy Doctorate Program.

This lecture is appropriate for adult and emerging adult learners with very little or basic understandings …

Course Lecture: Government Resources As A Part Of Scholarly Communication, Devon Olson

Librarian Publications

The second lecture in a 5-part series of lectures on scholarly communication, this lecture situates government publications and public use datasets as one facet of scholarly communication and evidence based practice via discussion of the structure of the United States government and related vocabulary, as well as activities in which learners explore and then teach the class about various data tools.

This lecture was designed for the University of North Dakota School of Medicine and Health Sciences Occupational Therapy Doctorate Program.

This lecture is appropriate for adult and emerging adult learners with very little or basic understandings of scholarly communication, …