Digital Commons Network^™

Utilizing Suas-Based Remote Sensing For Sustainable Outdoor Recreational Trail Design And Monitoring, Isaac C. Kinder

Graduate Theses, Dissertations, and Problem Reports

This study utilizes sUAS-based remote sensing and hydrologic models to analyze and predict locations susceptible to water-based trail erosion. Erosion is frequently cited as the most significant environmental impact of trails and often requires costly design and management considerations. A professionally designed trail totaling 4 km in length was segmented based on presence or absence of water-based erosion for analyses and then flown with sUAS technology. Three Logistic regression (LR) models were generated utilizing several hydrologic terrain models of varying resolutions to determine the effects of spatial resolution on the models’ predictive accuracies. Receiver operator characteristics, kappa, and overall accuracy …

Enhancing 5g Fixed Wireless Access In Rural Settings Via Machine Learning-Driven Resource Optimization, Maryam Amini

Graduate Theses, Dissertations, and Problem Reports

Providing broadband access to rural communities continues to be an important societal problem whose solution would help to break down the digital divide. While 5G wireless networks may be used for rural broadband, a key challenge is the placement of base stations, which is exacerbated by the use of high frequencies in the millimeter-wave band. Such technology requires an unobstructed line of sight, demanding meticulous planning of the number, height, and location of base stations for optimal coverage. Conventional methods, such as ray-tracing to simulate signal propagation across varied terrain, are computational costly and not feasible for vast coverage areas. …

Application Of Metagenomic And Molecular Microbiology Techniques To Elucidate Sources Of Fecal Pollution And Anthropogenic Antibiotic Resistance Genes To Surface Water: A Step Towards A “One Health” Approach To Watershed Management, Mehedi Hasan Tarek

Graduate Theses, Dissertations, and Problem Reports

The use of fecal indicator bacteria, such as Escherichia coli, is a widely established regulatory and monitoring practice to detect surface water contamination associated with fecal pollution. However, the detection or quantification of fecal indicator bacteria alone does not accurately inform the sources of fecal pollution. The development of molecular and metagenomic methods that target the DNA of microorganisms has resulted in a host of new tools for monitoring fecal pollution and its sources, as well as for understanding emerging microbial threats, such as antimicrobial resistance. Antimicrobial resistance is a critical “One Health” challenge presenting a high risk to …

Production, Best Management Practices, And Market Impacts Of Forest Biomass Harvest And Collection In The Mid-Atlantic Region, William E. Smith

Graduate Theses, Dissertations, and Problem Reports

Time motion studies were conducted at five mid-Atlantic sites that spanned various operations in West Virginia, Ohio, and Pennsylvania. The harvest systems included integrated harvests where chips were produced in the forest, roundwood systems where only roundwood was produced, and a centralized chipping system. The study collected overall productivity and machine utilization data at the various harvesting operations. The cost per green ton of woody biomass ranged from $18.46 to $39.8 resulting in an average of $30.33 among the five systems. Hauling had the highest average price per green ton at $9.10, while loading had the lowest at $1.73 per …

An Analysis Of Urban Land Use Land Cover (Lulc) Changes In Lilongwe City, Central Malawi (2002–2022), Zola Manyungwa

Graduate Theses, Dissertations, and Problem Reports

Lilongwe, Malawi’s capital city, has grown nearly tenfold in the last 40 years with a 4-5% annual population growth rate, and the city’s population is projected to double over the next decade. Rural to urban migration and natural increase are the driving factors of the city’s urban expansion. Characterised by the urbanisation of poverty, Lilongwe is experiencing uncontrolled and unplanned urban expansion that has led to the growth of informal settlements. Urbanisation leads to land use land cover (LULC) changes that negatively impact the quality of life and the environment. Lilongwe faces many challenges, including high levels of poverty, inequality, …

Distributed Energy Infrastructure Development: Geospatial & Economic Feasibility In Rural West Virginia, Xinming Andy Zhang

Graduate Theses, Dissertations, and Problem Reports

Energy transition from conventional to centralized power plants, including coal-fired units, is critical for West Virginia’s long-term energy and economic future. The socioeconomic downturn in West Virginia was deeply connected with the dependence on the centralized coal industry and the coal economy. Most traditional coal communities in rural West Virginia struggle to maintain economic viability, potentially leading to outmigrations and poor energy resilience. I investigated the possibility of introducing community-sized distributed energy systems in these rural communities to improve energy resilience and accommodate the future transition from centralized coal-generated energy.

My goal was to identify rural regions where distributed energy …

Spatiotemporal Trends In Particle-Associated Microbial Communities In A Chlorinated Drinking Water Distribution System, Madison Haddix

Graduate Theses, Dissertations, and Problem Reports

Bacteria can survive treatment and enter drinking water distribution systems (DWDSs), or enter DWDSs through intrusion or maintenance work on the system. DWDSs can also be suitable environments for bacterial regrowth. Many factors can affect the microbial community composition of DWDSs, including various spatiotemporal, hydraulic, and water quality parameters. Although most bacteria within DWDSs are harmless, opportunistic pathogens, such as Legionella pneumophila, Pseudomonas aeruginosa, and Mycobacterium avium, can inhabit DWDSs and premise plumbing and are the leading cause of waterborne disease outbreaks in developed countries. Previous studies have attempted to establish relationships between various parameters and microbial …

Mapping Infiltration In An Urbanizing Mixed-Land-Use Watershed With Multi-Temporal Satellite Imagery, Sarah J. Higgins

Graduate Theses, Dissertations, and Problem Reports

Digital soil mapping (DSM) is a field of soil science that aims to improve traditional soil maps by producing higher resolution predictive maps of soil properties using spatial environmental data. DSM has historically relied primarily on static environmental covariates—such as slope gradient, slope aspect, and other topographic variables derived from digital terrain models—for predicting static soil properties, like soil texture. Advancements in satellite imagery and statistical modeling improve the accuracy of digital soil maps by incorporating multi-temporal data that can capture landscape-scale change over relatively short periods of time. Adding these dynamic environmental covariates may be especially useful for spatial …

Physics Infused Lstm Network For Track Association Based On Marine Vessel Automatic Identification System Data, Tasmiah Haque

Graduate Theses, Dissertations, and Problem Reports

In marine surveillance, a crucial task is distinguishing between normal and abnormal vessel movements to timely identify potential threats. Subsequently, the vessels need to be monitored and tracked until necessary action can be taken. To achieve this, a track association problem is formulated where multiple vessels' unlabeled geographic and motion parameters are associated with their true labels. These parameters are typically obtained from the Automatic Identification System (AIS) database, which enables real-time tracking of marine vessels equipped with AIS. The parameters are time-stamped and collected over a long period, and therefore, modeling the inherent temporal patterns in the data is …

Drought Effects On Biofuel Feedstock Production By Populus Trichocarpa, Marvin Jacob Wright

Graduate Theses, Dissertations, and Problem Reports

As the world population continues to increase, so does the need for sustainable sources of fuel. Biofuels are of particular interest and could be an economically feasible fuel source given the right conditions. Populus trichocarpa, is a rapidly growing plantation species that, in addition to having a fully sequenced genome available for study, displays a wide range of phenotypic traits among genotypes. By analyzing these differences in both plantation and more controlled greenhouse settings, we aimed to discover which genotypes performed the best under drought conditions, and which physiological mechanisms granted them that high performance. In the field, differences in …

Uav Position Estimation Using A Lidar-Based 3d Object Detection Method, Uthman Oladipo Olawoye

Graduate Theses, Dissertations, and Problem Reports

LiDAR-based object detection methods have drawn sufficient attention from academia and industry due to the increase in the use of the LiDAR sensor for autonomous driving. Insensitivity to light and the ability to capture high spatial information of the encircling environment coupled with the steady reduction in purchase cost are features that make the LiDAR appealing for autonomous driving. The detection methods can process and evaluate the sensor data to identify objects and calculate the relative position of the objects to the sensor. While these methods are currently applied to autonomous driving, they could also be used in robotics for …

Examining The Spatial Relationship Between Maternal Morbidity, Access To Health Care, And Community Characteristics In West Virginia, Sarah E. Woolard

Graduate Theses, Dissertations, and Problem Reports

Maternal-related morbidity rates in the United States have risen almost three fold since the early 1990’s. Issues related to rurality, socioeconomic disparities, and pre-existing health conditions increase the risk of poor pregnancy outcomes and introduce barriers to accessing advanced maternal health care. West Virginia (WV) has higher maternal morbidity rates than many other states in the United States (US), and is considered to be driven by all 55 counties being classified as Appalachian, possessing the highest prenatal smoking rate in the US, and having disparities in access to health care. Despite this, no previous studies have evaluated maternal morbidity in …

The Heart Of Everything In The Middle Of Nowhere: The Role Of Rural Identity In The Formation And Deployment Of Political Attitudes In Pennsylvania, Mikaela G. Zimmerman

Graduate Theses, Dissertations, and Problem Reports

The world of American politics continues to infiltrate households across the United States as technological advancement extends the reach of breaking news and government action. With this expanding reach, communities all over the country are digesting and contemplating their place in national politics more fervently than ever. At the crux of this discussion is the backbone of political engagement and action—identity and its resulting political attitudes. For decades, partisanship has been a point of contention amongst American citizens. Cities across the nation showcase protests, demonstrations, town hall meetings, and more illustrating citizens’ care for their democratized input in government affairs. …

Evaluating Factors Influencing Transportation-Related Energy Consumption, Amrit Williams

Graduate Theses, Dissertations, and Problem Reports

This thesis contributes to the literature assessing the relationships between travel patterns, transportation-related energy consumption, and urban form. Although the literature has explored several area-related and other factors, the focus has mainly been on urban areas. This research aims to (1) quantify the relationship of transportation-related energy consumption with urban form, (2) explore how individual attitudes might affect consumption, and (3) explore differences in consumption among different socioeconomic and demographic population groups.

Data collected from an online survey targeting adults in the contiguous U.S. supplemented with secondary spatial data were used to address the research goals. The collected sample was …

Uncertainty Estimation For Stereo Visual Odometry, Derek W. Ross

Graduate Theses, Dissertations, and Problem Reports

Over the past few decades, unmanned aerial vehicles (UAVs) have been increasingly popular for use in locations that are lacking, or have unreliable global navigation satellite system (GNSS) availability. One of the more popular localization techniques for quadrotors is the use of visual odometry (VO) through monocular, RGB-D, or stereo cameras. With primary applications in the context of Simultaneous Localization And Mapping (SLAM) and indoor navigation, VO is largely used in combination with other sensors through Bayesian filters, namely Extended Kalman Filter (EKF) or Particle Filter. This work investigates the accuracy of two standard covariance estimation techniques for a feature-based …

Putting Policy In Its Place: Policy Enactment And Engagement Through A Multiscalar Policy-Shed Framework, Barbara L. Maclennan

Graduate Theses, Dissertations, and Problem Reports

The objective of this research is to examine the spatial components integral to policy formation, implementation, and evaluation. The research uses solid waste as a case study to explore a multiscalar GIS policy-shed framework. To this end, the goal of this dissertation is to examine the spatial nature of public policy. The research applies spatial concepts and multiscalar methodological applications embedded within GIS and geovisualization to explore the complex spaces surrounding public policy implementation and evaluation.

Advancing The Spatial Turn In History Through Deep Mapping: Ghost Maps, Neogeography, And Frederick Jackson Turner, Jessica L. Mathai

Graduate Theses, Dissertations, and Problem Reports

The permeation of the spatial turn into the humanities, and in particular history, has both imbued scholarship and opened up new areas for research. This dissertation examines the conceptual and theoretical implications of advancing the spatial turn in history and evaluating existing approaches such as Historical GIS and ghost mapping as a foundation for deep mapping. The resulting deep map developed in this study utilizes Neogeography and web technology in the form of JavaScript Application Programming Interfaces (APIs) to develop a prototype that overcomes many of the limitations that occur when simultaneously integrating multiple sources of data and software functionality, …

On The Improvement Of The Indirect Quantification Of Methane Emissions: A Stationary Single Sensor Approach, Robert Scott Heltzel

Graduate Theses, Dissertations, and Problem Reports

There is a need for improved indirect quantification of methane emissions, particularly from the natural gas industry. Natural gas production continues to increase along with the number of wells and production sites. These production sites have the potential to contribute significant levels of methane emissions. Methane is a potent greenhouse gas and the primary component of natural gas. A more complete understanding of emissions through improved quantification will lead to enhanced mitigation. Emissions have historically been quantified with both direct and indirect methods, with varying results. Emissions have been shown to be both temporally and spatially variable. These facts have …

Planning Algorithms Under Uncertainty For A Team Of A Uav And A Ugv For Underground Exploration, Matteo De Petrillo

Graduate Theses, Dissertations, and Problem Reports

Robots’ autonomy has been studied for decades in different environments, but only recently, thanks to the advance in technology and interests, robots for underground exploration gained more attention. Due to the many challenges that any robot must face in such harsh environments, this remains an challenging and complex problem to solve.

As technology became cheaper and more accessible, the use of robots for underground ex- ploration increased. One of the main challenges is concerned with robot localization, which is not easily provided by any Global Navigation Services System (GNSS). Many developments have been achieved for indoor mobile ground robots, making …

Planetary Rover Inertial Navigation Applications: Pseudo Measurements And Wheel Terrain Interactions, Cagri Kilic

Graduate Theses, Dissertations, and Problem Reports

Accurate localization is a critical component of any robotic system. During planetary missions, these systems are often limited by energy sources and slow spacecraft computers. Using proprioceptive localization (e.g., using an inertial measurement unit and wheel encoders) without external aiding is insufficient for accurate localization. This is mainly due to the integrated and unbounded errors of the inertial navigation solutions and the drifted position information from wheel encoders caused by wheel slippage. For this reason, planetary rovers often utilize exteroceptive (e.g., vision-based) sensors. On the one hand, localization with proprioceptive sensors is straightforward, computationally efficient, and continuous. On the other …

Injury-Related Infant Mortality In West Virginia, 2010-2014, Wilson A. Koech

Graduate Theses, Dissertations, and Problem Reports

Background and objective

Infant mortality in United States is high relative to other more developed nations. Therefore, there is a need to curb this trend, especially in states with high infant mortality rates. Hence, this research investigated and examined characteristics associated with injury-related infant death in West Virginia. The objective of this retrospective study was to 1) investigate maternal and infant characteristics associated with injury-related infant deaths in West Virginia, 2) examine the relationship between unintentional-injury-related infant death and rurality in West Virginia, holding other variables in the model constant, and 3) compare differences in the unintentional-injury related infant mortality …

Innovative Approaches To 3d Gis Modeling For Volumetric And Geoprocessing Applications In Subsurface Infrastructures In A Virtual Immersive Environment, Pragya Srivastava

Graduate Theses, Dissertations, and Problem Reports

As subsurface features remain largely ‘out of sight, out of mind’, this has led to challenges when dealing with underground space and infrastructures and especially so for those working in GIS. Since subsurface infrastructure plays a major role in supporting the needs of modern society, groups such as city planners and utility companies and decision makers are looking for an ‘holistic’ approach where the sustainable use of underground space is as important as above ground space. For such planning and management, it is crucial to examine subsurface data in a form that is amenable to 3D mapping and that can …

Hepatitis B In At-Risk Groups: Three Studies To Guide Education, Testing, And Vaccination Efforts In West Virginia, Stacy Tressler

Graduate Theses, Dissertations, and Problem Reports

Background and Objectives: For over a decade, West Virginia’s (WV) rate of acute hepatitis B has been the highest in the United States (US). In 2017, WV’s rate was 11.7 per 100,000 population, almost 12 times higher than the national rate. The increase in acute hepatitis B cases is largely due to substance misuse, including injection drug use (IDU). Hepatitis B is a vaccine preventable disease yet many at-risk adults remain unvaccinated and susceptible to infection. The objectives of our studies are to 1) describe yearly changes in acute hepatitis B incidence in WV and assess county-level impact of the …

Assessment Of Unmanned Aerial Systems And Lidar For The Utility Vegetation Management Of Electrical Distribution Rights-Of-Ways, Matthew R. Walker

Graduate Theses, Dissertations, and Problem Reports

Utility Vegetation Management (UVM) is often the largest maintenance expense for many utilities. However, with advances in Unmanned Aerial Systems (UAS; or more commonly, “drones”) and lidar technologies, vegetation managers may be able to more rapidly and accurately identify vegetation threats to critical infrastructures. The goal of this study was to assess the utility of Geodetics’ UAS-lidar system for vegetation threat assessment for 1.6 km of a distribution electric circuit. We investigated factors which contribute to accurate tree crown detection and segmentation of trees from within an UAS-lidar derived point cloud, and the factors which contribute to accurate tree risk …

Developing A Biophilic City Through Natural Land Transformation Analysis And Geodesign: The Case Of Purbachal New Town, Bangladesh, Udday Shankur Datta

Graduate Theses, Dissertations, and Problem Reports

Dhaka, the capital city of Bangladesh is one of the fastest-growing metropolitan regions in the world. To solve the ever-increasing need for housing and to reduce the pressure of the population from the capital city, the Purbachal satellite city was planned. It is the biggest planned township in Bangladesh with an area of over 25 square kilometers. Purbachal is situated at the confluence of the Shitalakhya and Balu rivers. Historically a low-lying wetland, Purbachal has gone through a rapid transformation in past decades. The water bodies around the area have been filled in to create new developable land. Through remote …

Environment Search Planning Subject To High Robot Localization Uncertainty, Jared Joseph Beard

Graduate Theses, Dissertations, and Problem Reports

As robots find applications in more complex roles, ranging from search and rescue to healthcare and services, they must be robust to greater levels of localization uncertainty and uncertainty about their environments. Without consideration for such uncertainties, robots will not be able to compensate accordingly, potentially leading to mission failure or injury to bystanders. This work addresses the task of searching a 2D area while reducing localization uncertainty. Wherein, the environment provides low uncertainty pose updates from beacons with a short range, covering only part of the environment. Otherwise the robot localizes using dead reckoning, relying on wheel encoder and …

Spatio-Temporal Analysis Of Crime Incidents For Forensic Investigation, Jamie Spencer Spaulding

Graduate Theses, Dissertations, and Problem Reports

Crime analysis and mapping has been routinely employed to gather intelligence which informs security efforts and forensic investigations. Traditionally, geographic information systems in the form of third-party mapping applications are used for analysis of crime data but are often expensive and lack flexibility, transparency, or efficiency in uncovering associations and relationships in crime. Each crime incident and article of evidence within that incident has an associated spatial and temporal component which may yield significant and relevant information to the case. Wide variations exist in the techniques that departments use and commonly spatial and temporal components of crime are evaluated independently, …

Disturbance Related To Unconventional Oil And Gas Development In The Appalachian Basin, Kevin Jordan Harris

Graduate Theses, Dissertations, and Problem Reports

Little research has been done on the land cover change of unconventional oil and gas (UOG) wells across the Appalachian basin. In the last decade, UOG development has increased drastically across the region. Permitted well data from 2007 to 2017 were assembled into a geospatial database and analyzed with current aerial imagery to determine the activity of permitted wells in Ohio, Pennsylvania, and West Virginia. To capture all disturbance related to UOG development, a 25-hectare buffer was placed around each active well as the study extent. A supervised classification approach was used to determine the pre-development and post-development landcover across …

The Spatial Historian: Creating A Spatially Aware Historical Research System, James P. Schindling

Graduate Theses, Dissertations, and Problem Reports

The intent of this study is to design a geospatial information system capable of facilitating the extraction and analysis of the fragmentary snapshots of history contained in hand-written historical documents. This customized system necessarily bypasses off-the-shelf GIS in order to support these unstructured primary historical research materials and bring long dormant spatial stories previously hidden in archives, libraries, and other documentary storage locations to life. The software platform discussed here integrates the tasks of information extraction, data management, and analysis while simultaneously giving primary emphasis to supporting the spatial and humanistic analysis and interpretation of the data contents. The premise …

Leaf Angle And Leaf Stomata Responses To Experimental Drought In Quercus Velutina And Acer Saccharum, Brittany Nichole Casey

Graduate Theses, Dissertations, and Problem Reports

The possibility of increased severity and frequency of drought conditions, as a result of global climate variability, greatly complicates our ability to forecast future forest functions such as productivity and carbon sequestration. Assessing how tree species vary in their response to drought can aid in predicting the impact on forest ecosystems as a whole. Throughfall exclusion (TfE) experiments are potentially useful tools to simulate realistic drought conditions within intact forest ecosystems. We employed a TfE experiment during the 2018 growing season within the WV Land Trust’s Elizabeth’s Woods Nature Preserve, near Morgantown, WV, to assess the leaf angle and leaf …