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2020

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Link Prediction Based Face Clustering Using Variational Attentional Graph Autoencoder, Harish Deepak Verlekar Dec 2020

Link Prediction Based Face Clustering Using Variational Attentional Graph Autoencoder, Harish Deepak Verlekar

Computer Science and Engineering Theses - Archive

In this work, we address the problem of clustering faces according to their individual identities present inherently in the dataset.The current clustering frameworks are either based on some heuristic method or require labelled data for training the models,also some of them make assumptions on data distribution or shape of the clusters.We have framed the problem of forming clusters to that of link prediction on graphs and learn how to do that in a completely unsupervised way by proposing to use Variational Graph Autoencoders and use Graph Attentional Network as the Encoder. We call this network as Variational Attentional Graph Autoencoder(VAGAE).Our …

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Early Detection Of Glaucoma Using Modified Residual U-Net Convolutional Neural Network, Balasubramaniam Theetharappan Dec 2020

Early Detection Of Glaucoma Using Modified Residual U-Net Convolutional Neural Network, Balasubramaniam Theetharappan

Computer Science and Engineering Theses - Archive

Glaucoma is the second leading cause of blindness all over the world, with apparently 75 million cases reported worldwide in 2018. If it’s not diagnosed at an early stage, glaucoma may cause irreversible damage to the optic nerve which results in blindness. The Optic head examination is the widely used structured diagnosis approach in the current medical field for Glaucoma detection which involves measuring the Optic Cup-to-Disc ratio from the fundus image. Estimation of Optic Cup-to-Disc requires accurate segmentation of the Optic Cup and Optic Disc from the fundus which is a tedious and time-consuming task even for the experienced …

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Nanoscale Mechanics Of Disordered Biomolecules In Brain, Md Ishak Khan Dec 2020

Nanoscale Mechanics Of Disordered Biomolecules In Brain, Md Ishak Khan

Mechanical and Aerospace Engineering Dissertations - Archive

The long-term objective of this dissertation is to link blast-induced traumatic brain injury (TBI) with multiscale, multiphysics damage evolution in the brain using experimentally verifiable computations and simulations. The short-term goal is to conduct modeling and simulation to correlate dynamic mechanical loading to damage in sub-axonal components. It is known that the interior of the brain at the macroscale (10^-1 m) is composed of two distinct components, the grey matter, and the white matter. Within the cortex, the grey matter primarily takes the form of cortical columns (mesoscale: 10^-3 m), which are six layered structures, each composed of 8-10 thousand …

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Analytical And Experimental Studies On Mixing In Supersonic Flows, Vijay Gopal Dec 2020

Analytical And Experimental Studies On Mixing In Supersonic Flows, Vijay Gopal

Mechanical and Aerospace Engineering Dissertations - Archive

Mixing enhancement in supersonic flow is an important domain of research for enabling the realization of efficient and scalable high speed air-breathing engines (scramjet). Introducing streamwise vorticies in supersonic flow and tailoring their interactions for mixing enhancement is the primary motivation for the present research study. Leveraging the research performed in the group at the Aerodynamics Research Center (ARC), systematic experimental studies on mixing enhancement is carried out in supersonic flows by tailoring the selected modes of streamwise vortex interactions with the aid of in-house developed reduced order method VorTX. This method utilizes the lifting line-vortex theory in supersonic flow …

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Automating Aerospace Synthesis Code Generation A Tool For Generic Vehicle Design And Technology Forecasting, Thomas Peter Mccall Dec 2020

Automating Aerospace Synthesis Code Generation A Tool For Generic Vehicle Design And Technology Forecasting, Thomas Peter Mccall

Mechanical and Aerospace Engineering Dissertations - Archive

The principal development and deliverable of this research is a generic synthesis assembling decision support environment for early conceptual design that automates the assembly of synthesis architectures for enhanced product exploration and technology forecasting. The objective of this research is to develop a baseline environment to assess complex vehicle automated synthesis architecture synthetization procedures for adaptation into a greater cognitive system. This tool has been developed as a precursory and developmental task in an initiative towards an artificial intelligence design and research assistant peer. The artificial intelligence peer is a perceived course for future design system evolution in the continued …

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Using Numerical Modeling To Determine Viscous Losses Within Helium Turbomachinery, Benjamin Uhlig Dec 2020

Using Numerical Modeling To Determine Viscous Losses Within Helium Turbomachinery, Benjamin Uhlig

Mechanical and Aerospace Engineering Theses - Archive

As the consumption of energy has increased relentlessly over the last few decades, the need for reliable clean energy generation has increased as well. Currently, nuclear power is the only method capable of providing a stable supply of clean energy, although the nuclear energy generation process still requires improvement. Specifically, there is a need to increase efficiencies while reducing the risks of radioactive contamination. It is possible that both these issues may be mitigated using helium as the working fluid. However, the performance of turbomachinery using helium must be evaluated before its use can be implemented. To do this, Balaji …

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Determination Of Landing Zones Of Quadrotors Experiencing In-Flight Failures, Ahmet Tolcu Dec 2020

Determination Of Landing Zones Of Quadrotors Experiencing In-Flight Failures, Ahmet Tolcu

Mechanical and Aerospace Engineering Theses - Archive

In recent years, unmanned aerial vehicles (UAVs), commonly known as drones, have attained considerable prominence in a wide range of areas ranging from military operations, including surveillance, intelligence, and reconnaissance, to nonmilitary sectors such as delivery, entertainment, and agriculture. The low cost, small size, and ease of use of quadrotors provide significant advantages for such missions. At the same time however, the occurrence of physical failures in such vehicles, particularly if these failures occur while flying over highly populated areas, can pose considerable risk to people and premises on the ground. This thesis investigates scenarios of power loss due to …

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Experimental Assessment Of Rack-Level Dynamic Direct To Chip Liquid Cooling For Data Center And It Equipment Reliability, Amith Mathew Dec 2020

Experimental Assessment Of Rack-Level Dynamic Direct To Chip Liquid Cooling For Data Center And It Equipment Reliability, Amith Mathew

Mechanical and Aerospace Engineering Theses - Archive

Data centers are used by organizations for storing, processing and distribution of data. These data centers are run through-out the year due to which their thermal management is a growing concern. A popular way of eliminating such thermal cooling issues is Liquid cooling. Conventionally Liquid cooling involves the supply of constant liquid flow (water or refrigerant) through the IT rack irrespective of the IT load, which in a Multi-chip module causes hotspots and temperature gradients across the module due to non-uniform heating. A dynamic cold-plate and a regulatory flow control device (FCD) is incorporated in this experimental set-up to assist …

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Synthesis And In Vivo Biomedical Applications Of Ultrasmall Metal Nanoparticles, Shahab Ranjbar Bahadori Dec 2020

Synthesis And In Vivo Biomedical Applications Of Ultrasmall Metal Nanoparticles, Shahab Ranjbar Bahadori

Material Science and Engineering Dissertations - Archive

Over the past decade, metal-based nanoparticles (MNPs) have gained much popularity in the field of nanomedicine owing to their exceptional physiochemical properties. Easy surface functionalization and conjugation with therapeutic moieties, stability, inertness, and inherent anticancer activities make MNPs promising diagnostic and therapeutic agents. Among different sizes of MNPs, which greatly affect their biodistribution and clearance, ultrasmall metal nanoparticles with the size less than 5 nm demonstrate unique pharmacokinetic properties, making them suitable for nanomedicinal applications. Therefore, many efforts have been made to synthesize various kinds of ultrasmall metal nanoparticles. In this study, a revolutionary synthesis method, termed as liquid diffusion …

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Stronger Than Fiction: Literary And Cultural Merit Of Contemporary African American Christian Fiction, Shewanda Larue Riley Dec 2020

Stronger Than Fiction: Literary And Cultural Merit Of Contemporary African American Christian Fiction, Shewanda Larue Riley

English Dissertations - Archive

My primary goals with this dissertation are to take a close look at how contemporary African American Christian fiction performs important literary and cultural functions and explore how these works reinforce or subvert perceptions of the contemporary African American Christian woman. The specific texts that I analyze are chosen from 1997-2007, the earliest time period of publication of contemporary African American Christian fiction as they set the tone for African American Christian fiction literary works that have been published since that time. The primary research question driving this project is whether contemporary African American Christian fiction has literary and cultural …

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Evolution Of Sustainability And Resilience In Military Master Planning: Examining Planners' Perceptions, Rhonda E. Fields Dec 2020

Evolution Of Sustainability And Resilience In Military Master Planning: Examining Planners' Perceptions, Rhonda E. Fields

Public Affairs Dissertations - Archive

An increasingly globalized world and mounting threats to our economy, environment, and social structures have brought the concepts of sustainability and resilience into sharp focus. These threats include climate change, rapid urbanization, and loss of biodiversity in an increasing volatile, uncertain, ambiguous, and complex world. Sustainability and resilience have emerged as key concepts in understanding and addressing urban dynamics toward a livable urban future. These concepts are important because resilience typically deals with the short-term issues surrounding predicting and responding to immediate threats, while sustainability looks at the long-term, steady state of the built and natural environment. Focusing on resilience …

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An Exploratory Case Study: Analyzing Planning Approaches In Economic Development Through The Institutional Analysis And Development Framework, Priscylla Bento Dec 2020

An Exploratory Case Study: Analyzing Planning Approaches In Economic Development Through The Institutional Analysis And Development Framework, Priscylla Bento

Public Affairs Dissertations - Archive

This exploratory case study examines planning and economic development through the Institutional Analysis and Development (IAD) framework in the New Institutional Economic Theory. Two selected case studies highlight economic development orchestrated under two planning approaches, Transactive Planning and Market Oriented Planning. A case study of the Bishop Arts District urban revitalization in Dallas, Texas and the Bexar Street Retail Development Project in Dallas, Texas provides an exploratory analysis of the specified planning methods. This study moves away from previous forms of analysis of economic development planning, highlighting the New Institutional Economic theory through the Institutional Analysis and Development framework as …

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Trumpism Against The Public Interest: A Political Discourse Analysis, Walter L. Taylor Dec 2020

Trumpism Against The Public Interest: A Political Discourse Analysis, Walter L. Taylor

Public Affairs Dissertations - Archive

Trumpism has come to mean different things to different people. This dissertation explores whether Trumpism is an extreme form of New Public Management, privileging values of efficiency and effectiveness, in public policy and public administration, to the exclusion of the value of social equity. Fairclough & Fairclough’s (2012) political discourse analysis method is applied to Trump’s immigration policy to enact merit-based immigration and to his housing policy to eliminate the Community Development Block Grant program. Using Fairclough & Fairclough’s (2012) political discourse analysis method consisting of argumentation theory and critical discourse analysis, along with Frederickson’s “Compound Theory of Social Equity” …

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Application Of The Critical Race And Latino Critical Theories To Explore Social Innovation In Nonprofit Services Addressing Hiv/Aids Issues In Texas, Jack Brandon Philips Dec 2020

Application Of The Critical Race And Latino Critical Theories To Explore Social Innovation In Nonprofit Services Addressing Hiv/Aids Issues In Texas, Jack Brandon Philips

Public Affairs Dissertations - Archive

The nonprofit sector is an essential and valuable resource in the United States for aiding marginalized populations. This study focuses on how nonprofit health organizations provide and innovate HIV services, and how they can overcome barriers in delivering quality services for HIV/AIDS education, prevention, and treatment to Latinos in Texas. Nonprofit organizations are on the front lines of the HIV/AIDS fight, through their outreach in the areas of education, prevention, and testing. Nonprofit organizations are examined for barriers and innovations in service delivery as it applies to the Latino community. This study also examines how the integration of Critical Race …

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Building On Spatial Mismatch: A New Review Of Literature And An Example Case Study, Steven Matthew Reeves Dec 2020

Building On Spatial Mismatch: A New Review Of Literature And An Example Case Study, Steven Matthew Reeves

Planning Theses - Archive

Barriers to employment exist at different levels for minority groups, especially those that are residentially segregated. Many studies have examined these barriers, including a physical separation between the residential location and the available job opportunities since John Kain’s 1968 Spatial Mismatch Hypothesis. However, recent studies of modal mismatch, racial mismatch, and skill or language mismatch, have been identified with significant impact on accessible employment without being included in a comprehensive review of mismatch literature. This research provides an updated literature review of Spatial Mismatch. It also includes a case study of a little-studied region, Dallas – Fort Worth metropolitan area. …

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Laboratory Study Of Hydrodynamics Of Submerged Bridges, Max Thomson Dean Dec 2020

Laboratory Study Of Hydrodynamics Of Submerged Bridges, Max Thomson Dean

Civil Engineering Theses - Archive

Bridges are designed to withstand flood and debris loads; however, it is reported that 53% of bridge failures in the U.S. are caused by hydraulic events, including floods, scour, debris, and drifts. A series of scale flume experiments were conducted to determine flood force effects on bridge superstructures. 1:50 scale models of the Texas Department of Transportation’s typical reinforced concrete bridge superstructures were tested. The bridge superstructures included beams (TX28 and TX54 girders, slab beams, and box beams) and an accompanying bridge deck and railing. The drag and lift forces and overturning moments were measured by load sensors for various …

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Developing Strength Reduction Factor For Flexural Design Of Reinforced Concrete Beams Exposed To Fire, Sahar Aradmehr Dec 2020

Developing Strength Reduction Factor For Flexural Design Of Reinforced Concrete Beams Exposed To Fire, Sahar Aradmehr

Civil Engineering Theses - Archive

Fire is a common hazard that may happen during the lifetime of concrete structures. Thus, it is one of the loads considered in building and tunnel design standards and codes. Dependency of the safety and structural integrity of a building to load-bearing elements such as beams requires the safe design of these elements. Flexural design of reinforced concrete (RC) beams under fire is critical. Typical load and resistance factor design (LRFD) of flexural member at ambient temperature deals with comparing the factored applied load with its capacity. Strength reduction factors are applied to the calculated nominal moment capacity to take …

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Laboratory Tests And Numerical Model Of Geothermally Heated Bridge Deck With Attached Hydronic Loop, Teng Li Dec 2020

Laboratory Tests And Numerical Model Of Geothermally Heated Bridge Deck With Attached Hydronic Loop, Teng Li

Civil Engineering Dissertations - Archive

An accumulation of ice and snow on pavement slabs and bridge decks always adversely impacts driving conditions and results in motorist accidents. The use of the more popular deicing methods, including plowing, salting, and sanding, is limited by their relatively high cost for materials, fuel, maintenance, and labor. Geothermal energy, which is considered a renewable, sustainable, clean (i.e., zero carbon emission), and directly used energy source, has been successfully applied to bridges and pavements for deicing. However, existing geothermal bridge and pavement deicing designs are primarily employed for new bridges where hydronic loops, which are considered internal heating, are embedded …

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Experimental Investigation Of Anchor Group Effects On Concrete Breakout Strength Within Fiber Reinforced Concrete, Atheer Alaa Al Khafaji Dec 2020

Experimental Investigation Of Anchor Group Effects On Concrete Breakout Strength Within Fiber Reinforced Concrete, Atheer Alaa Al Khafaji

Civil Engineering Theses - Archive

This research investigates the effect of anchor groups on concrete breakout strength within steel fiber reinforced concrete (SFRC) under tension load. High strength steel headed studs (F1554 Grade 105) in grouping action were cast-in-place within concrete specimens of different amounts of steel fibers. Four types of concrete mix designs were produced in the lab by using different amounts of steel fibers (0%, 0.5%, 1%, and 1.5%) by volume fraction of the mixture. The physical properties of steel fibers reinforced concrete were calculated through testing of specimens at the Civil Engineering Laboratory Building (CELB). In total, 12 cylinder specimens of 4-inch …

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Stochastic Risk Measures For The Lundberg Model With Reinsurance And Investment, Benie Justine N'Gozan Dec 2020

Stochastic Risk Measures For The Lundberg Model With Reinsurance And Investment, Benie Justine N'Gozan

Mathematics Dissertations - Archive

Risk measures emerge in fields such as economics, insurance, finance and are concerned with a stochastic representation of uncertainties stemming from the unpredictability of the real world events. In essence, risk analysis amounts to quantifying the chances of undesirable events and developing a model that limits the impact of potential losses. Assets and liabilities in the Insurance industry, as well as financial goals of Investment companies rely on calculating the probability that their respective portfolios satisfy the preset constraints. On the flip side, risk measures serve both industries by providing optimal strategies for minimizing losses. Our research is concerned with …

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Juveniles In The Interrogation Room: Defense Attorneys As A Protective Factor, Caitlin N. August, Kelsey S. Henderson Dec 2020

Juveniles In The Interrogation Room: Defense Attorneys As A Protective Factor, Caitlin N. August, Kelsey S. Henderson

Criminology and Criminal Justice Faculty Publications and Presentations

Juveniles are more susceptible in the interrogation room than adults, due to a host of vulnerabilities that put them at risk. Scholars have suggested that requiring the presence of a defense attorney during interrogations can protect juveniles from making an unintelligent waiver; variations of this type of policy have been mandated in some states across the United States (e.g., Illinois and California). The current study takes an exploratory, qualitative approach to examine how defense attorneys may act as a protective factor in the interrogation room. We interviewed 19 juvenile defenders using a semi-structured interview method; questions focused on experiences in …

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Rare Earth Element Distributions In Continental Shelf Sediment, Northern South China Sea, Qian Ge, Z. George Xue, Fengyou Chu Dec 2020

Rare Earth Element Distributions In Continental Shelf Sediment, Northern South China Sea, Qian Ge, Z. George Xue, Fengyou Chu

Faculty Publications

A total of 388 surface sediment samples taken from the northern South China Sea (SCS) continental shelf were analyzed to characterize the signature of their rare earth elements (REEs). The average REEs concentration was 192.94 µg/g, with a maximum of 349.07 µg/g, and a minimum of 32.97 µg/g. The chondrite-normalized REEs pattern exhibits a remarkably light REEs accumulation, a relatively flat heavy REEs pattern, and a negative Eu anomaly. We subdivided the study area into three zones using the characteristics of REEs and statistical characteristics. Zone I: continental shelf off western Guangdong Province. Here, the sediment provenance is mainly river-derived …

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Scholarworks Procedures And Policies, Maura Valentino Dec 2020

Scholarworks Procedures And Policies, Maura Valentino

Library Scholarship

No abstract provided.

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Point Optimal Testing With Roots That Are Functionally Local To Unity, Anna Bykhovskaya, Peter C. B. Phillips Dec 2020

Point Optimal Testing With Roots That Are Functionally Local To Unity, Anna Bykhovskaya, Peter C. B. Phillips

Research Collection School Of Economics

Limit theory for regressions involving local to unit roots (LURs) is now used extensively in time series econometric work, establishing power properties for unit root and cointegration tests, assisting the construction of uniform confidence intervals for autoregressive coefficients, and enabling the development of methods robust to departures from unit roots. The present paper shows how to generalize LUR asymptotics to cases where the localized departure from unity is a time varying function rather than a constant. Such a functional local unit root (FLUR) model has much greater generality and encompasses many cases of additional interest that appear in practical work, …

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On Strategy-Proofness And The Salience Of Single-Peakedness In A Private Goods Economy, Shurojit Chatterji, Masso Jordi, Serizawa Shigehiro Dec 2020

On Strategy-Proofness And The Salience Of Single-Peakedness In A Private Goods Economy, Shurojit Chatterji, Masso Jordi, Serizawa Shigehiro

Research Collection School Of Economics

We consider strategy-proof rules operating on a rich domain of preference profiles in a set up where multiple private goods have to be assigned to a set of agents with entitlements where preferences display satiation. We show that if the rule is in addition "desirable", in that it is tops-only, continuous, same-sided and individually rational with respect to the entitlements, then the preferences in the domain have to satisfy a variant of single-peakedness (referred to as smilattice single-peakedness). We also provide a converse of this main finding. It turns our that this domain coincides with the one already identified in …

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Decomposing Duration Dependence: Skill Depreciation Vs. Statistical Discrimination, Ismail Baydur, Jianhuan Xu Dec 2020

Decomposing Duration Dependence: Skill Depreciation Vs. Statistical Discrimination, Ismail Baydur, Jianhuan Xu

Research Collection School Of Economics

This paper develops a random matching model with unobserved worker heterogeneity and learning about worker types from unemployment duration. The model features negative duration dependence that stems from unobserved heterogeneity as well as statistical discrimination and skill depreciation. We estimate our model using micro-level data from Current Population Survey (CPS) and we decompose the contribution of each channel to job finding rates by duration. We find that shutting down statistical discrimination substantially increases the job finding rates of the long-term unemployed while skill depreciation mainly affects the medium-term unemployed.

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Teaching English As A Foreign Language: A Case Study From Poland, Jaroslaw Richard Romaniuk, Kathleen J. Farkas Dec 2020

Teaching English As A Foreign Language: A Case Study From Poland, Jaroslaw Richard Romaniuk, Kathleen J. Farkas

Faculty Scholarship

This article presents a detailed history of the development of a particular immersion program to teach English to young Polish students. The program draws support from two organizations, the Kościuszko Foundation and the Polish Scouting Organization. Kościuszko Foundation is dedicated to strengthening the ties between the United States and Poland as well as to increase knowledge of Poland’s history and culture in the United States. The cooperation of these two organizations developed an experience of immersion in language and cultural exchange. Both the teachers and the students in this program benefited from the opportunity to engage in a number of …

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Bullous Hemorrhagic Sweet Syndrome With Cryptococcoid Neutrophils In Patients Positive For Antineutrophil Cytoplasmic Antibody Without Primary Vasculitis., Alex Sherban, Collin Fuller, Mansha Sethi, Eleni Mcgeehin, Dawn Hirokawa, Courtney Guerrieri, Jason B. Lee, Md, Sherry Yang Dec 2020

Bullous Hemorrhagic Sweet Syndrome With Cryptococcoid Neutrophils In Patients Positive For Antineutrophil Cytoplasmic Antibody Without Primary Vasculitis., Alex Sherban, Collin Fuller, Mansha Sethi, Eleni Mcgeehin, Dawn Hirokawa, Courtney Guerrieri, Jason B. Lee, Md, Sherry Yang

Department of Dermatology and Cutaneous Biology Faculty Papers

No abstract provided.

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Language Deprivation Is A Game Changer For The Clinical Specialty Of Deaf Mental Health, Neil S. Glickman, Charlene Crump, Steve Hamerdinger Dec 2020

Language Deprivation Is A Game Changer For The Clinical Specialty Of Deaf Mental Health, Neil S. Glickman, Charlene Crump, Steve Hamerdinger

JADARA

In this paper, the medical, social and historical forces resulting in much smaller numbers of deaf children having quality access to natural sign languages are presented. These forces mean that people who work in the clinical specialty of Deaf mental health are seeing more clients with atypical or dysfluent sign language. An historical overview of the development of this clinical specialty is outlined, followed by a discussion of how the problem of language deprivation is a “game changer” for the work of mental health clinicians, interpreters, communication assessors, and administrators of Deaf mental health services. Special attention is given to …

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Psychologists' Use Of Touch In Individual Psychotherapy With Deaf And Hard-Of-Hearing Clients, Caroline M. Kobek Pezzarossi Ph.D, Irene W. Leigh Ph.D, Daniel S. Koo Ph.D Dec 2020

Psychologists' Use Of Touch In Individual Psychotherapy With Deaf And Hard-Of-Hearing Clients, Caroline M. Kobek Pezzarossi Ph.D, Irene W. Leigh Ph.D, Daniel S. Koo Ph.D

JADARA

The use of touch in psychotherapy is a topic often undiscussed in graduate training programs. Stenzel and Rupert’s 2004 study showed that nearly 90% of clinicians never or rarely offered touch to clients during a session. This study examined the use of touch in a psychotherapeutic setting with culturally Deaf clients, since touch is a culturally accepted, even expected, practice. Results indicated that there was no statistically significant difference among culturally Deaf therapists compared with the Stenzel and Rupert’s (2004) findings, but there is a statistically significant difference in those who identify as hearing and work with culturally Deaf clients. …

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