Digital Commons Network^™

A Novel Power Integrity Modeling Method Based On Plane Pair Peec, Siqi Bai

Masters Theses

"A low impedance power distribution network (PDN) is essential for high frequency integrated circuits. A novel modeling mothed, i.e. the plane pair PEEC method is proposed in this thesis to model the PDN of the multi-layered printed circuit board. The modeling results agrees favorably with full wave simulation and measurement. A PDN tool is develop based on this method"--Abstract, page iii.

An Integrated Method For Understanding The Fluid Flow Behavior And Forecasting Well Deliverability In Gas Condensate Reservoirs With Water Aquifer Drive, Abdulaziz Mustafa Em. Ellafi

Masters Theses

"Gas condensate reservoirs constitute a significant portion of global hydrocarbon reserves. In these reservoirs, as bottomhole pressure falls below the dew point, liquid develops in the pore space. This results in the formation of a liquid bank near the wellbore region that decreases gas mobility, which then reduces gas inflow. Some gas condensate reservoirs have bottom aquifer drive, which also negatively impacts gas production. This research used a field case study to demonstrate an integrated workflow for forecasting well deliverability in a gas condensate field in Libya. The workflow began with the interpretation of open-hole log data to identify the …

Battery Optimization In Microgrids Using Markov Decision Process Integrated With Load And Solar Forecasting, Prateek Jain

Masters Theses

"Rising climatic concerns call for unconventional/renewable energy sources which reduce the carbon footprint. Microgrids that integrate a variety of renewable energy resources play a key role in utilizing these energy resources in a more efficient and environmentally friendly manner. Battery systems effectively help to utilize these energy resources more efficiently. This research work presents a framework based on Markov Decision Process (MDP) integrated with load and solar forecasting to derive an optimal charging/discharging action of Battery with rolling horizon implementation. The load forecasting regression models are discussed and developed. Also, various solar forecasting models like clear sky, multi-regression and Non-Linear …

Nonlinear Finite Element Analysis Of Concrete Columns Subjected To Complex Loading, Adam Christopher Morgan

Masters Theses

"This study details the development and implementation of a finite element model within a commercial finite element code, Abaqus CAE, for the analysis of reinforced concrete (RC) bridge columns containing interlocking spirals subjected to combined loading conditions including axial, shear, bending, and torsional loads, including the post-peak response. The model is a first of its kind attempt at simulating the response of RC columns with continuous spiral transverse reinforcement and subjected to combined loading conditions including torsion. The model is utilized to determine the quasi-static load-deformation response under various proportions of the input loads and displacements. The resulting quasi-static load-deformations, …

The Role Of Flexural Slip In The Development Of Chevron Folds, Yuxing Wu

Masters Theses

"Chevron folds are characterized by straight limbs and narrow hinge zones. One of the conceptual models to initiate and develop chevron folds involves flexural slip during folding. While some kinematical models show the necessity for slip to initiate during chevron folding, recent numerical modeling studies of visco-elastic effective single layer buckle folding have shown that flexural slip does not result in chevron folds. In this study, several 2D finite element analysis models are run, distinguished by 1) geometry of the initial perturbation (sinusoidal and white noise), 2) varying thewavelength of the initial perturbation (10%, 50%, and 100% of the dominant …

Reprocessing Of 3c-2d Seismic Reflection Data From The Spring Coulee Field, Alberta, Yasin Demir

Masters Theses

"The 3C-2D seismic datasets were acquired in 2008 in the Spring Coulee Field, Alberta, which is located in Township 4, Range 23, and west of the 4th Meridian in the Alberta Basin. Line 2008-SC-01 was reprocessed to obtain better image of the formation targeted at between 1300 ms and 1400 ms. The depositional settings of the Madison Formation consist of shallow and carbonate shelf deposits. The processing workflow was designed by testing several methods, algorithms, and parameters, and finding the optimal processing solution. The processing steps included elevation statics, noise suppression, deconvolution operator, and 2D Kirchhoff poststack time migration. In …

Why A Negative Body Image? A Study On Gender, Social Media, And Mass Media, Taryn Bland Teeters

Masters Theses

This study was designed to identify the contributors to body image (BI) dissatisfaction. The factors affecting the adult body image and the extent of their consequences were examined. This study attempted to determine the extent to which these individual's peers, the mass media, and social media affect their BI, body shaming, and the individual's shame of others.

An anonymous online questionnaire was utilized and sent to participants by snowballing through the use of Facebook and email. Participants were asked to identify their age, gender, pleasing and displeasing body parts, their use of social media, and an overall rating of their …

A Qualitative Case Study On Best Practices Of Emotional Support Animal Policies, Jordan E. Dadez

Masters Theses

This study sought to understand the best practices and protocols of Emotional Support Animal policies in residential life. A qualitative case study was conducted to provide insight on the best practices of residential life Emotional Support Animal Policies. Four participants from institutions with established policies were interviewed to gain understanding of these protocols and policies, what is involved in the approval and accommodations process, and what challenges the participants face. The results showed a need to evaluate and change the current process that most institutions utilize for Emotional Support Animal approval. The approval process and accommodations process are two separate …

Defense In Depth Network Perimeter Security, Anuoluwapo Ope Fatokun

Masters Theses

Defense in depth network perimeter security has always be a topic of discussion for a long time as an efficient way of mitigating cyber-attacks. While there are no 100% mitigating method against cyber-attacks, a layered defense in depth network perimeter security can be used to mitigate against cyber-attacks. Research have shown a massive growth in cyber-crimes and there are limited number of cyber security expert to counter this attacks. EIU as an institution is taking up the responsibility of producing cyber security graduates with the new Master of Science in Cyber Security program that started in Fall 2017.

This research …

Students' Perceptions Of Safety On A Campus In Relation To Firearms, Porfirio Gallegos Jr.

Masters Theses

This study will utilize a qualitative approach to better understand students' perceptions of safety on-campus in relation to firearms. Results found that participants felt safe on-campus due to its rural setting. Determination of geographical upbringing was noted as influential overall in perceptions of firearms. Participants were more confident with faculty having concealed firearms than students. Results also indicated that students have a lack of knowledge when it came to state legislation, their university's policies, and the protocol in place at their university in response to a mass shooting. Students reflected Perry's (2010) multiplicity stage of development appropriate for this age …

Student-Instructor Negotiations Of Vulnerability In Higher Education, Kelli A. Halfman

Masters Theses

Brené Brown, author of Daring Greatly: How the Courage to Be Vulnerable Transforms the Way We Live, Love, Parent, and Lead states, "Vulnerability is not weakness, and the uncertainty, risk, and emotional exposure we face every day are not optional" (p. 2). The purpose of this study is to examine student-instructor negotiations of vulnerability via acts of self-disclosure both inside and outside of the classroom. For the traditional student, college is a transitional period that prove challenging, leaving one feeling vulnerable. This study offers a unique perspective of vulnerability and expands our limited knowledge on how vulnerable self-expression manifests within …

Ethnic Identity Development Of 1.5 Generation Filipino American Immigrants: A Qualitative Study, Catherine Welsh

Masters Theses

This qualitative study examines ethnic identity development of 1.5 generation Filipino American immigrants in U.S. The survey methods used in the study were a demographic questionnaire, and semi-structured interview. Two Filipino students, one from the Southwest and the other from the Midwest regions of the U.S. participated in the study. Two research questions guided this study; what factors influence the ethnic identity development of the 1.5 generation Filipino American immigrants, and what strategies educators can use to facilitate 1.5 generation Filipino American immigrant student success. The results of the study revealed six themes. Three themes emerged from research question one …

War Spin: How U.S. Politicians, The President And The Media Frame Foreign Intervention, Samantha White

Masters Theses

In this research, I seek to explain how three different foreign policy actors, the President, key Senators, and the media frame intervention policy when determining if intervention is used for human rights versus U.S. interests. I will be looking at four different areas of turmoil (Bosnia (1992-1995), Rwanda (1994), Syria (2011-present) and Iraq (2003-2011)) to see if the Presidents, Senators, and the media framed their intervention around human rights atrocities being committed, or if they framed it around a national security dilemma.

A Photo Illicit Study Of Black Women's Sense Of Belonging At A Predominately White Institution, Kayla Alexandria Slusher

Masters Theses

This qualitative study sought to examine how Black women define and create their sense of belonging while attending a predominately White institution using a photovoice approach. The women took photographs of spaces that they frequently occupy and then engaged in a face-to-face interview to discuss the photographs. The researcher also investigated four Black women, ranging from junior to graduate level, to identify how they developed a sense of belonging at the research site institution. Results of the study showed that a feeling of comfort was most important when identifying belongingness in a space. The participants were able to create a …

Is The Relationship Between College Drinking Behaviors And Social Anxiety Mediated By Alcohol Expectancies And Traumatic Life Experiences?, Cortney Lin Kingsmill

Masters Theses

The relationship between alcohol consumption and social anxiety is difficult to understand, as there have been mixed findings in the research. In general, a positive correlation has been found between the two, with a focus on the mediating effect of alcohol outcome expectancies. Both positive expectancies and trauma have been correlated positively with social anxiety and drinking behavior. This paper reviews the literature and examines the relationship between social anxiety and alcohol consumption. A mediated model between these two variables with the mediators being alcohol expectancies and traumatic experiences was proposed, but this model did not fit the date. Specifically, …

Representation Of The Titanic In Children's Literature, Charity Rose Huwe

Masters Theses

State and national education initiatives are the driving force behind increased exploration of diverse texts, namely informational texts. Trade books offer opportunity for interdisciplinary units to develop through the rise of informational text use in both English/language arts and history/social studies. Primary source documents serve as a liaison to filing gaps in the information left out from textbooks and trade books. A more thorough understanding of historical figures and events are a result of such analysis. The initiatives do not dictate specific curricular material; teachers use their discretion when choosing available trade books, primary documents, and other curricular resources. In …

Characterization And Tailoring Of Powder Used In Additive Manufacturing And Plasma Spheroidization, Caitlin S. Kriewall

Masters Theses

"There are many processes that use metal powder as the starting material for the production of parts. With the growth of these manufacturing techniques, more critical part applications are being considered. In order to fully understand the process and create consistent parts, powder properties need to be well understood. Selective laser melting (SLM) is a powder bed-based additive manufacturing process. During processing, heat-affected powders are generated and can deposit within the build area. The current work investigated the characterization of heat-affected 304L stainless steel powder using techniques such as scanning electron microscopy, x-ray diffraction and x-ray photoelectron spectroscopy to detect …

Development Of A Cfd Model Of The Catalytic Combustion Of A Microtube Multi-Mode Propulsion System, Andrew Paul Taylor

Masters Theses

"This thesis presents the process and results of the development of a computational fluid dynamics (CFD) model in ANSYS Fluent 18.1 on the catalytic decomposition of a novel liquid monopropellant in a microtube in order to gain deeper insights than what is available through the experimental data. The CFD model was created using the Euler- Euler Multiphase model in conjunction with the Heterogeneous Reaction submodel. Such a choice of modeling setting was backed up by theory and benchmark computations on multiphase and compressible flow, shown in Section 3 and Appendix A. It was found that the previously determined one-step reaction …

Professional And Technical Writing In The High School Setting, Kristy C. Bennett

Masters Theses

No abstract provided.

Query Expansion Techniques For Enterprise Search, Eric M. Domke

Masters Theses

Although web search remains an active research area, interest in enterprise search has waned. This is despite the fact that the market for enterprise search applications is expected to triple within the next six years, and that knowledge workers spend an average of 1.6 to 2.5 hours each day searching for information. To improve search relevancy, and hence reduce this time, an enterprise- focused application must be able to handle the unique queries and constraints of the enterprise environment. The goal of this thesis research was to develop, implement, and study query expansion techniques that are most effective at improving …

The Effect Of Auditory Stimuli On Test Performance: Testing The Arousal Hypothesis, Ian Thomas Kells

Masters Theses

Since the publication of Rauscher, Shaw, and Ky’s study in 1993 on the “Mozart Effect”, the study of music and its effect on cognition and performance has gained significant attention. Roth and Smith (2008) investigated this “Mozart Effect” and suggested a continuation of research and interpretation through an arousal theory. This study examined the effects of a subject-identified arousing stimulus on performance on the Verbal Reasoning portion of the GRE, analyzed through an arousal theory framework. A sample of 24 non-music Western Michigan University students took part in one 60-minute testing period using subject-preferred music, which was then analyzed across …

A Longitudinal Study Of Prenatal Care And Prenatal Outcomes Of Women In Foster Care Across Michigan Counties, Lauryn Jianrattanasawat

Masters Theses

According to the Michigan Department of Health and Human Services, at any given time, there are approximately 13,000 youth in foster care throughout Michigan. This study used secondary data of linked child welfare case records and State of Michigan Medicaid claims from January 1, 2009 to September 30, 2012 to research the effects of individual, foster care and spatial characteristics experienced by 307 women that became pregnant and delivered while still enrolled in foster care in Michigan on their prenatal care and prenatal outcomes. While, the majority of the analyses resulted in insignificant relationships, significant differences between foster care characteristics …

Finding A Baseline For Accountability In Diversion Programming, Anthony G. Frontiera

Masters Theses

This present study looked at a Mid-West American Juvenile Justice institution with the hope of helping to build a baseline of understanding in terms of how their diversion programming efforts are shaping out. Historically, research and funding have not been directed into diversion efforts in the same ways that re-entry efforts have seen. Studies have shown that if diversion efforts are not effective, then another cohort of youth are consigned to 50% higher recidivism rates than otherwise. The research before you was conducted to assist this institution in understanding and then changing their course of action with regards to diversion …

Enhancing Intersection Safety For The Blind And Visually Impaired (Bvi) Pedestrian Using Device-To-Infrastructure Communication, Mohammad Sayyah Al-Akash

Masters Theses

Visually impaired pedestrians have limited mobility options, where they rely heavily on walking and transit for their transportation needs. One of the major issues facing these pedestrians is intersection crossing. Accessible Pedestrian Signals (APS), as a means of helping their intersection crossings, were introduced in the United States as early as 1920 but were not included in the Manual on Uniform Traffic Control Device (MUTCD) until 2000. The most recent type of APS is the beaconing APS which has shown improvements in road crossing abilities of blind pedestrians though it has many downsides to it. This study developed a cane …

Finite Element Analysis Of Tibiofemoral Contact Mechanics, Erika Fojtik

Masters Theses

The effects of lateral meniscus posterior root avulsions (LMPRA) have been studied in combination with meniscofemoral ligament (MFL) deficiencies. The purpose of this study is to validate a set of biomechanical finite element analyses against previously reported experimental results to predict the contact area and peak contact pressure in the lateral tibiofemoral compartment of the knee during lateral meniscal root avulsions in combination with MFL deficiencies. Patient specific MRI data was used to develop finite element models for three distinct testing conditions: 1) intact, 2) lateral meniscus posterior root avulsion, and 3) lateral meniscus posterior root avulsion with deficient meniscofemoral …

Overcoming Ideology: Examining The Tension Between Sex Work And Anti-Human Trafficking Advocacy, Emily R. Williams

Masters Theses

Human trafficking has become a national conversation and concern. Grassroots organizations designed to combat human trafficking spring up rapidly and help shape public perception on what trafficking is – and what it isn’t. Drawing on participant observation and indepth interviewing, I speak with anti-trafficking advocates determined to eradicate human trafficking and sex workers who prefer to stay in their profession. This thesis will largely explore the unintended consequences of well-meaning advocacy, and the tension between their views on the sex industry and the views from within the sex industry. I aim to use this work not only as a local …

Libya, The New York Times, And A Propaganda Model Of The Mass Media, Randy Laprairie

Masters Theses

This project derives a set of research expectations from the propaganda model, a structural model of the corporate news media developed by Edward S. Herman and Noam Chomsky. The model predicts that the news media will reflect elite views and priorities and marginalize views outside the range of elite opinion. Consequently, it is expected that the media will tend to support the elite’s preferred modes of exercising state power in international affairs. This often entails demonizing official enemies of the United States in order to justify military interventions while downplaying the crimes of the United States and its allies. To …

U.S. Metropolitan Bridges To Puerto Rican Music Identity; Cuban And Puerto Rican Music Connections From The 1920'S-1970'S, William George Johnson

Masters Theses

“Cuba and Puerto Rico are As two wings of the same bird, They receive flowers and bullets Into the same heart ...” (Lola Rodriguez de Tio, 1868) Puerto Rican poet and political activist Lola Rodriguez de Tio penned these words after being inspired by the call for the independence of Puerto Rico. Her words were further canonized in Puerto Rican cultural identity after being published in the song La Borinquena by composer Rafael Hernandez. Hernandez’s song would later become a musical symbol of national identity for the island of Puerto Rico and the Puerto Rican Diaspora. The connection between the …

The Development And Continued Evolution Of The American Style Of Oboe Playing, Rebecka Rose

Masters Theses

Though the American school of oboe playing did not exist roughly a century ago, its popularity and impact, in all of its variations, currently extends throughout and beyond the United States. Marcel Tabuteau, the founding father of the American school, developed a new and unique style during the early part of the twentieth century. This style became a truly hybrid school grounded in the French oboe school, and developed through his playing and teaching at the Curtis Institute of Music into a style that encompasses beauty, expression, and the vibrancy that has come to typify the American school oboist. The …

Bimusicality: Pedagogical Insights For Music Educators From "Second-Music" Learning Experiences, Kerry Digiacomo

Masters Theses

This study explores the development of “bimusicality” in adolescent and adult music learners to discover correlations between this experience and second language acquisition processes. North American music educators need to be equipped to help their students grow in their understanding of diverse musical styles, genres, and traditions, and the ethnomusicological concept of bimusicality, in connection with existing research on second-language acquisition as a sociocultural phenomenon, offers a new frame of reference for understanding how music learners may interact with distinct musical styles. Survey research with a group of 98 adult musicians, followed by ethnographic interviews of 16 of these survey …