Digital Commons Network^™

Dead End Body Component Inspections With Convolutional Neural Networks Using Uas Imagery, Ian Edward Nordeng

Theses and Dissertations

This work presents a novel system utilizing previously developed convolutional neural network (CNN) architectures to aid in automating maintenance inspections of the dead-end body component (DEBC) from high-tension power lines. To maximize resolution of inspection images gathered via unmanned aerial systems (UAS), two different CNNs were developed. One to detect and crop the DEBC from an image. The second to classify the likelihood the component in question contains a crack. The DEBC detection CNN utilized a Python implementation of Faster R-CNN fine-tuned for three classes via 270 inspection photos collected during UAS inspection, alongside 111 images from provided simulated imagery. …

Depending On The Weather And Other Stories, Benjamin Morris

Theses and Dissertations

Depending on the Weather and Other Stories is a collection of short stories set in the rural and small town communities of contemporary America. The problem my characters address is their changing relationship with the American Dream. While my baby boomer characters tend to believe the Dream is alive and achievable, their children are growing more disenchanted and skeptical of the Dream. The disconnections between these generations are largely due to a credibility gap and a shifting set of generational values. These values have shifted for the younger generation because of an evolving (or devolving) American culture.

My stories are …

Women Engineering Majors' Choice To Stay: A Phenomenological Exploration Of Persistence Experiences, Victoria Morrissette

Theses and Dissertations

The historical underrepresentation of women in engineering persists for women engineering majors in college and once they enter the workforce. While some engineering disciplines have seen an increase in women students, overall the numbers still have fallen well behind other STEM disciplines despite years of research. Most studies on this issue have been quantitative and have looked at factors associated with why women leave engineering. This qualitative study, in contrast, gave women engineering majors the opportunity to share their experiences in answer to the question of why women choose to stay in an engineering major. Phenomenological methods, including semi-structured interviews, …

The Relationship Between Perceived Competence Levels Of Student Affairs Professionals And Their Job Satisfaction, Alexander Pokornowski

Theses and Dissertations

The relationship between perceived competence levels of student affairs professionals and their level of job satisfaction is the central question in this study. The study explores this question through utilizing a non-experimental survey design. Participants in the study include student affairs professionals from participating institutions. The study utilizes an instrument combining the Job Satisfaction Survey developed by Spector (1985) and an adjusted version of National Survey of Student Affairs Professionals developed by Sriram (2014). The study examines the relationship between perceived assessment, evaluation, and research; leadership; and organizational and human resources competence and overall job satisfaction. The study found a …

Examining Rural To Urban Migration, Crime And Characteristics Of Rural Migrants Offenders -- An Exploratory Study On The Relationship Between Rural Migration And Criminal Offenses Utilizing The Online Judicial Dataset In Guangdong Province, Ziwei Qi

Theses and Dissertations

China has experienced massive internal migration in the past three decades. The rapidly growing urban population, especially the rural to urban migrant population, is the primary social concern with respect to public health and social stability that China is facing in recent decades. Both the public and private sectors have hastened to respond to the emerging needs of this socially, economically and politically marginalized group. In the current dissertation, the author utilizes judicial decisions from the Intermediate Level Courts in the Guangdong province, China, in order to examine the characteristics of rural migrant offenders, and to explore the relationship between …

Plate Vibration Dispalcement Curve Measurement Using Pvdf, Aniket Nandkumar Pinjan

Theses and Dissertations

Beam and plate dynamics are often measured using accelerometers and in some cases laserbased systems. Natural frequencies, mode shapes, and deflections are then derived from these measurements. The work presented here describes a method to directly measure the deflection curve of a vibrating beam and plate using piezoelectric films. The sensor consists of constant shape segment of PolyVinyliDene Fluoride (PVDF) films bonded to the surface of the structure. We show in here that each segment of the sensor measures the deflection slope at its particular location. The overall lateral displacement curve of the structure (beam/plate) is calculated from these slopes …

No Additional Benefit Of Foam Rolling Or Dynamic Stretching To Vertical Jump Performance Beyond A General Aerobic Warm-Up In Collegiate Athletes, Benjamin Saaribovre

Theses and Dissertations

This study aimed to examine the effectiveness of four warm-up protocols on explosive strength in a vertical jump performance in collegiate athletes. Fifty-two NCAA Division 1 athletes (aged 20.3 ± 1.53 years, range: 18-23 years, Height 183.83 cm. ± 11.49 cm., Weight 81.85 kg. ± 17.56 kg., BMI 24.18 ± 3.64) performed each of the four randomly ordered warm-up protocols prior to performing both the squat jump (SJ) and countermovement jump (CMJ) tests, with each warm-up and subsequent jump tests performed at the same time of day spaced 1-week apart. The four warm-up protocols were: (a) general aerobic (run/walk) (AERO); …

Collective Efficacy And Police Homicides: Evidence From California In The 1990s, Jayme Reynolds

Theses and Dissertations

This paper examines certain factors relating to collective efficacy; loosely defined as the strength of a community, and the effect those factors have on police homicides in the respective communities. More specifically, this study analyzes three components that contribute to collective efficacy: linguistic isolation, residential stability, and educational attainment. Data utilized in this study include U.S. Census data as well as data from a unique dataset containing California state-wide homicides during the 1990s. Using a negative binomial regression on pooled zip code data shows that, in relation to the factors mentioned above, educational attainment is the most influential characteristic analyzed …

A Channel Ranking And Selection Scheme Based On Channel Occupancy And Snr For Cognitive Radio Systems, Adnan Quadri

Theses and Dissertations

Wireless networks and information traffic have grown exponentially over the last decade. Consequently, an increase in demand for radio spectrum frequency bandwidth has resulted. Recent studies have shown that with the current fixed spectrum allocation (FSA), radio frequency band utilization ranges from 15% to 85%. Therefore, there are spectrum holes that are not utilized all the time by the licensed users, and, thus the radio spectrum is inefficiently exploited. To solve the problem of scarcity and inefficient utilization of the spectrum resources, dynamic spectrum access has been proposed as a solution to enable sharing and using available frequency channels. With …

Plastic Properties Of High Performance Self-Compacting Concrete, Kyle Seidler

Theses and Dissertations

As the world becomes more complex and people become more evolved the desire to build taller building and design more complex structures is on the rise. The major problem that occurs with larger structures are the forces associated with building bigger. One way to help solve the problem of large stresses in concrete structures is to include more reinforcing steel and design more complex reinforcing configurations. The down side to increasing the amount of reinforcing steel is that the steel creates smaller gaps for the concrete to flow through. This problem was realized in the early 1980’s and the concept …

Synthesis Of Cyclic And Linear Poly(Hydroxybutyrates) By Ring-Opening Polymerization Of Β-Butyrolactone With Amido-Oxazolinate Zinc Catalysts, Muneer Shaik

Theses and Dissertations

A series of amido-oxazolinate zinc complexes have been employed for the ring opening polymerization of β-butyrolactone (BBL). Experimental results show that these complexes efficiently catalyze the reactions, yielding cyclic poly(hydroxybutyrate)s (PHBs) with high molecular weights (Mn up to 196 kg/mol) and low dispersity. In contrast, in the presence of alcohol co-catalysts, the zinc-catalyzed ring-opening polymerization (ROP) reactions lead to the formation of linear PHBs end-capped by the alcohol initiator and hydroxylbutyrate. A possible mechanism for cyclic PHBs is proposed, in which the zinc catalysts function as a loose Lewis pair at elevated temperature, followed by a fast propagation through a …

To “Own Yourself A Little More”: Afropolitan Feminism In Chimamanda Ngozi Adichie's Americanah, Bridget Tetteh-Batsa

Theses and Dissertations

Afropolitanism, in part, accounts for itinerant and so autonomous Africans who shape the contours of a late-modern global history. If Afropolitanism describes the work and activism of 21st century Africans in Euro-America determined to challenge western discourses that malign Africa, it is important to witness the distinctive character and voice Afropolitan women bring to that history defining exercise. Otherwise, as critics and scholars interested in what Afropolitanism brings to the work of reframing master narratives hitherto encircled for western primacy, we risk reinforcing the injustice we address.

To fill this gap in the literature, I employ Selasi’s initial conception of …

A Study Of Two-Phase Flow Through Static Mixers And Their Effects On Downstream Pressure Behavior, Adam A. Stoker

Theses and Dissertations

The following thesis entails the research relating to single and two-phase flow through various static mixer geometries and the measurement of fluid viscosity, viscous behavior, and density. Previous studies on the effects of static mixers on flow behavior, and the determination of fluid properties have been examined and summarized. Fluid viscosity and viscous behavior was measured using a rheometer that determined the shear stress on the fluid with a range of spindle shear rates from 0 to 250 1/s and a temperature range of 5 to 35 degrees Celsius. The results validated the fluid viscosities and the viscous behavior as …

Automatic Approach To Morphological Classification Of Galaxies With Analysis Of Galaxy Populations In Clusters, Madina Renatovna Sultanova

Theses and Dissertations

The classification of galaxies based on their morphology (i.e. structural properties) is a field in astrophysics that aims to understand galaxy formation and evolution based on their physical differences. Whether structural differences are due to internal factors or a result of local environment, the dominate mechanism that determines galaxy type needs to be robustly quantified in order to have a thorough grasp of the origin of the different types of galaxies (e.g., elliptical, S0, spiral, and irregular). The main subject of this thesis is to explore the use of computers to automatically analyze and classify large numbers of galaxies based …

Understanding The Effects Of Spatial And Temporal Scale On State And Transition Models Based Upon Remotely Sensed Data, Rebecca Lemons

Theses and Dissertations

The grassland-forest ecotone is a highly diverse and complex region that encompasses a multitude of grasslands, savannas, and forests. Ecological and anthropogenic pressures are causing dramatic changes in the health of the landscapes within this ecotone. A new methodology was created using State and Transition Models and Remote Sensing to understand and assess the landscape health. This methodology used six spectral indices (MTVI, NDSVI, NDVI, NDWI, SATVI, and SWIR32) created from times series Landsat 4-5TM. These spectral indices and LiDAR were used to characterize the spatial, spectral, and temporal properties of vegetation states and substates across 20 sites within the …

Educational Technology Integration Among Community College Instructors, Oybek Turayev

Theses and Dissertations

Over the last two decades, educational technology (ET) integration has become an increasingly important aspect of higher education, particularly with the growth of online, distance and hybrid courses and degree programs. Furthermore, accrediting agencies such as the Higher Learning Commission (HLC) are paying close attention to online and hybrid courses and degree programs, making effective use of ET even more important to colleges and universities. Even in traditional, on-campus classrooms, some instructors are not using ET effectively to augment teaching and learning.

The main purpose of this research study was to examine a holistic view of educational technology integration into …

Novel Bio-Kinetic Modeling And 2,3-Butanediol Productivity Optimization Of Clostridium Autoethanogenum, Timothy Taylor

Theses and Dissertations

The objective of this work is to elucidate the viable significance and technological implications for the fermentative production of 2,3-BDO from syngas by researching the following: derivation of a novel bio-kinetic model with substrate inhibition, analyzing product formation with the use of syngas from coal, and conducting an experimental design for potential significant factors that affect product formation. A critical review and analysis of the state-of-the-art developments for gas to liquid (GTL) technologies and syngas formation from coal are provided.

The Role Of The Cholesterol Metabolite, 27-Hydroxycholesterol, In Colon Cancer Cells, Jessica A. Warns

Theses and Dissertations

Colorectal Cancer (CRC) is a major health concern with more than 600,000 deaths worldwide each year. Several risk factors for CRC exist including a diet rich in fat and cholesterol. However, the link between cholesterol and CRC is controversial. It is possible that oxysterols, which are active cholesterol metabolites, may correlate better with CRC than cholesterol itself. The most abundant oxysterol in the plasma is 27-hydroxycholesterol (27-OHC), which is a ligand for the nuclear receptors estrogen receptor (ER) and liver-x-receptor (LXR). 27-OHC has been shown to be involved in breast and prostate cancers, but its role in colon cancer remains …

Regional Airline Study: The Impact Of Operational Volume On Performance At Capacity Constrained Airports, Brady Bjerke

Theses and Dissertations

New regulation requires mainline carriers to report regional airline on-time performance. Regional airlines have a high operational volume at capacity constrained airports. Studies have indicated that if volume at a capacity constrained airport increases, then flight delays are likely to grow. Regional airline operational data in JFK and LGA is analyzed to determine the relationship between volume and on-time performance over a two-year period. Through reviewing statistical test results, recommendations are made in effort to predict a regional airline’s optimal volume while maintaining adequate on-time performance. Operational volume is characterized by three independent variables: block hours, aircraft utilization, and the …

Examining Determinants Of Patient Activation In Chronic Obstructive Pulmonary Disease: A Cross-Sectional Survey Study, Marnie M. Wetzstein

Theses and Dissertations

Introduction: Self-management plays a central role in the treatment chronic obstructive pulmonary disease (COPD). However, the patient characteristics necessary for effective self-management are not understood. The skills, confidence, and knowledge to engage in chronic disease self-care, known as patient activation, may play a key role in the capacity of people to self-manage COPD. How the complex, systemic nature of COPD influences patient activation has not been explored. Therefore, the purpose of this study was to examine the relationships among patient characteristics and health outcomes as determinants of patient activation among community-dwelling adults in the U.S. with COPD. The Revised Wilson …

Synthesis And Characterization Of Novel Ni-Max And Alsi-Max Composites, Maharshi Dey

Theses and Dissertations

The main objectives of this thesis are: (a) synthesize and characterize Ni-Ti3SiC2 composites (Chapter 2), (b) understand and compare the effect of other MAX phases like Cr2AlC, Ti3AlC2 and MoAlB on the mechanical and tribological behavior of Ni-matrix composites (Chapter 3), and (c) explore an alternative alloy to compare the tribological performance with Ni-Matrix composites (Chapter 4). This study shows that Ni-matrix composites can be fabricated by using a combination of cold pressing and subsequent hot pressing. All the composites were then studied by detailed microstructure investigations, mechanical, and tribological characterizations.

Reliability Of The Styku 3d Whole Body Scanner For The Assessment Of Body Size In College Athletes, Joseph Daniel Derouchey

Theses and Dissertations

3-dimensional (3D) anthropometrics, such as volumes and surface area, have been shown to be important in predicting sport performance, and assessing health status, but most commercially available whole-body scanners are cost prohibitive. The main purpose of this study was to determine the test-retest reliability of a commercially available single camera 3D body scanning system to assess whole body and segmental circumferences, surface areas, and volumes of healthy collegiate athletes and students. Forty-nine male and female student-athletes active in various sports from a division I institute were scanned and measurements were analyzed. The single camera system demonstrated good within- and between-session …

A Mixed Method Study Of The Impact Of Advanced Placement, International Baccalaureate, And Dual Enrollment Courses On College Transition And Success, Kazimir Bartley Gazdzik

Theses and Dissertations

In an educational environment that has limited resources, and greater pressures for increased academic standards, what is the best option to help prepare high school students for college academics? This research study: A Mixed Method Study of the Impact of Advanced Placement, International Baccalaureate, and Dual Enrollment Courses on College Transition and Success attempted to investigate the impact of advanced courses on college transition.

The results of this research showed no statistical difference in academic success or transition to college between students who had taken advanced classes and those who had not. There were also no statistical differences between students …

Examining The Effects Of Breakthrough Coaching On Instructional Leadership, Kevin Neil Clace

Theses and Dissertations

Instructional leadership is identified as a critical function for school principals seeking to positively influence teaching and learning. In many instances, however, desired instructional leadership practices give way to the numerous management requirements faced by principals on a day-to-day basis. It has been proposed that principals will have a greater capacity for effective instructional leadership when they implement Breakthrough Coaching as an organization management model.

This study investigated differences in the instructional leadership behaviors of 140 school principals who utilize the Breakthrough Coaching, compared to those who do not. Further, the study examined if correlations exist between fidelity of implementation …

Cross-Country Comparisons In Health-Related Fitness Among European Children And Adolescents, Kevin Carver

Theses and Dissertations

Physical fitness is an important indicator of general health and sporting/athletic success. Several studies have highlighted large between-country differences in cardiorespiratory endurance, with little known about differences in other fitness components. A systematic review identified papers that reported descriptive Eurofit test results for apparently healthy (free from known disease/injury) 9- to 17-year-olds Europeans. An overall fitness index for each country was calculated as a population-weighted mean test-age-sex-specific z-score. Spearman’s correlations were used to calculate the association between country-specific fitness indices and broad socioeconomic/health indices. Performance indices were calculated for 18 countries using data collected on 2,779,165 children aged 9-17 years …

Genomic Regulation Of Abiotic Stress Response In The Soil Nematode Oscheius Tipulae, Riley Mcglynn

Theses and Dissertations

Oscheius tipulae is a species of free-living soil nematode that can be found in ecosystems worldwide. Because of this, individuals must be able to respond to heat, freezing, and desiccation stresses in order to survive. They do this by producing a suite of cellular responses, some of which are necessary to survive multiple stresses, and some are stress-specific. While these cellular responses are well known, the ways in which they are regulated in a genome-wide context are not. In this project, multiple high throughput sequencing and bioinformatics analyses were utilized to answer this question. First, the O. tipulae genome was …

Erosion Degradation Characteristics Of A Linear Electro-Hydrostatic Actuator Under A High-Frequency Turbulent Flow Field, Yuan Li, Shaoping Wang, Mileta M. Tomovic, Chao Zhang

Engineering Technology Faculty Publications

The paper proposes a performance degradation analysis model based on dynamic erosion wear for a novel Linear Electro-Hydrostatic Actuator (LEHA). Rather than the traditional statistical methods based on degradation data, the method proposed in this paper firstly analyzes the dominant progressive failure mode of the LEHA based on the working principle and working conditions of the LEHA. The Computational Fluid Dynamics (CFD) method, combining the turbulent theory and the micro erosion principle, is used to establish an erosion model of the rectification mechanism. The erosion rates for different port openings, under a time-varying flow field, are obtained. The piecewise linearization …

The Second Amendment As Positive Law, Joseph Blocher, Darrell A.H. Miller

Faculty Scholarship

No abstract provided.

A New Guard At The Courthouse Door: Corporate Personal Jurisdiction In Complex Litigation After The Supreme Court’S Decision Quartet, David W. Ichel

Faculty Scholarship

In a quartet of recent decisions, the Supreme Court substantially reshaped the analysis of due process limits for a state's exercise of personal jurisdiction over corporations for the first time since its groundbreaking 1945 decision in International Shoe Co. v. Washington. The Court's decision quartet recasts the International Shoe continuum of corporate contacts for which it would be "reasonable" for the state to exercise jurisdiction based on "traditional notions of fair play and substantial justice" into a more rigid bright-line dichotomy between "general" and "specific" jurisdiction: for a state to exercise general (or all-purpose) jurisdiction over any suit, regardless of …

Precedent And The Semblance Of Law, Stephen E. Sachs

Faculty Scholarship

Like its author, Randy Kozel's *Settled Versus Right* is insightful, thoughtful, and kind, deeply committed to improving the world that it sees. But despite its upbeat tone, the book paints a dark picture of current law and the current Court. It depicts a society whose judges are, in a positive sense, *lawless* -- not because they disregard the law, but because they are without law, because they have no shared law to guide them. What they do share is an institution, a Court, whose commands are generally accepted. So *Settled Versus Right* makes the best of what we've got, reorienting …