Digital Commons Network^™

Design Development And Performance Study Of A Novel Assistive Device For Mobility Of Toddlers And Children With Visual Impairments, Joowon Jun

Dissertations and Theses

Being able to see allows mankind tremendous access to learn about the world, and because so much learning comes visually, children with visual impairments are delayed in developing range of skills: learning own languages, doing activities, socializing with peers, and etc. While children with vision can do virtually all the activities and tasks for granted, children with visual impairment require different types of tools or materials to do same tasks most of time. Amongst all the disadvantages that children with visual impairment have, one of the most critical disadvantageous area that visual impairment brings to toddler is learning to walk. …

Automatic Optimum Atlas Selection For Multi-Atlas Image Segmentation Using Joint Label Fusion, Kofi Agyeman

Dissertations and Theses

Multi-atlas image segmentation using label fusion is one of the most accurate state of the art image segmentation techniques available for biomedical imaging applications. Motivated to achieve higher image segmentation accuracy, reduce computational costs and a continuously increasing atlas data size, a robust framework for optimum selection of atlases for label fusion is vital. Although believed not to be critical for weighted label fusion techniques by some works (Sabuncu, M. R. et al., 2010, [1]), others have shown that appropriate atlas selection has several merits and can improve multi-atlas image segmentation accuracy (Aljabar et al., 2009, [2], Van de Velde …

Data Driven Approach For Increasing Power Grid Situational Awareness And Mitigating Cascaded Failures, Yassine Mhandi

Dissertations and Theses

The main purpose of this thesis is to use Artificial Neural network as a tool to monitor system health and performance. In other word Using ANN can increase the system awareness and can be used as a tool to mitigate cascade failure in power grid due to loss of communication in a critical power node and as a result avoid catastrophic phenomena like electric blackout. In this thesis, a modified IEEE 30 bus system is used as a system under study. Modified IEE 30 bus system is IEEE 30 bus system in which 2 sets of its synchronous condensers changed …

Brief Study Of Classification Algorithms In Machine Learning, Ramesh Sankara Subbu

Dissertations and Theses

The purpose of this study is to briefly learn the theory and implementation of three most commonly used Machine Learning algorithms: k-Nearest Neighbors (kNN), Decision Trees and Naïve Bayes. All these algorithms fall under the Classification algorithm category of Unsupervised Machine Learning. This paper is constructed structurally in explaining the working theory behind each algorithm and an implementation of a Machine Learning problem solved by each algorithm. KNN algorithm is designed using Euclidean distance measurement and Decision Trees make use of ID3 algorithm as a basis. We conclude the study by providing an overall picture of its strengths and weaknesses …

A Hybrid State/Event Driven Communication-Based Control For Dc Microgrids, Yusef Esa

Dissertations and Theses

The U.S. electric power industry is undergoing unprecedented changes triggered by the growing electricity demand, and the national efforts to reduce greenhouse gas emissions. Moreover, there is a call for increased power grid resiliency, survivability and self-healing capabilities. As a result of these challenges, the smart grid concept emerged. One of the main pillars of the smart grid is microgrids. In this thesis, the technical merits of clustering multiple microgrids during blackouts on the overall stability and supply availability have been investigated.

We propose to use the existing underground distribution grid infrastructure, if applicable, during blackouts to form microgrid clusters. …

Temporal Variability Of Fluorescent Dissolved Organic Matter At A Brackish, Tidal Marsh-Estuary Interface, Alana B. Menendez

Dissertations and Theses

Marshes are both terrestrial and aqueous, sitting as an intermediate between land and water. Studies over constrained numbers of tidal cycles have demonstrated that these marshes are net exporters of dissolved organic carbon (DOC) to adjoining estuaries, however, there is need for continuous monitoring to better understand the temporal variability of this flux: tidally, seasonally, and during episodic rain events. Through use of a YSI EXO2 sonde, an in situ optical sensor at the interface of the brackish, tidal Kirkpatrick Marsh and Rhode River sub-estuary in Edgewater, Maryland (located on the northwestern shore of the Chesapeake Bay), we were able …

Mechanisms Of Shear Zone Localization And Raman Thermobarometry In Spinel Peridotites From The Alpine Fault, New Zealand, Emily J. Lubicich

Dissertations and Theses

A suite of xenoliths from two localities on South Island, New Zealand, exhibit rare microstructures and provide information on deformation during the early stages of development of the Alpine Fault. The first set of samples has evidence of dislocation creep with subgrains, recrystallized grains, undulose extinction and a lattice preferred orientation. These samples also show evidence of post deformation static grain growth with polygonal grains, 120° triple junctions, and euhedral grains within larger grains of the same phase. Samples from the second locality also show evidence of dislocation creep but with minimal static grain growth. This set also has a …

Metronomic Irregularity: Investigating Eva Hesse's Sculpture Through Dance, Anna R. Cahn

Dissertations and Theses

No abstract provided.

Nature Versus Culture: Lower Manhattan Land Art By Charles Simonds, Walter De Maria, And Alan Sonfist, Farrar Fitzgerald

Dissertations and Theses

No abstract provided.

People Don't Do Such Things!: Contextualizing Representations Of Gendered Violence Through The Re-Scripting Of Aristotelean Tragic Devices In Fin-De-Siecle Drama, Olivia Blasi

Dissertations and Theses

No abstract provided.

Facing Mortality: Death In The Life And Work Of Damien Hirst, Dawn M. Delikat

Dissertations and Theses

No abstract provided.

The Deployment Of Psychiatrists And Psychotherapists To Control The Homosexual Problem In The Wehrmacht, Luftwaffe And Ss, Gina Ippolito

Dissertations and Theses

No abstract provided.

Bergson’S Élan Vital As Reflected In Florine Stettheimer’S Orphée Of The Quat-Z-Arts, Michael Neumeister

Dissertations and Theses

No abstract provided.

The Deprivatization Of Art: Dan Graham As An Art Worker, Jordana Cotilletta

Dissertations and Theses

No abstract provided.

Richard Wright's And Chester Himes's Treatment Of The Concept Of Emerging Black Masculinity In The 20th Century, Peter M. Brown

Dissertations and Theses

No abstract provided.

The Incident, Nathan Schiller

Dissertations and Theses

No abstract provided.

The Struggle To Re-Establish Anglo Superiority In American Modernism And Its Collapse Into American Tragedy, Jeff Brelvi

Dissertations and Theses

A study of the impact Anglo race assertion had on American Modernism through the work of Fitzgerald, Hemingway, and T.S. Eliot shaping the discourse on American cultural identity. Arthur Miller and his "Tragedy and the Common Man" put an end to Modernism's Anglo stronghold and brought about the next period of American literature, ushering it into the era of American tragedy.

Hidden History: The Role Of Great Britain In The American Civil War As Told By Cultural Artifacts, Mary Griffiths

Dissertations and Theses

What do statues and songs tell us about the Civil War? If the monuments are in the United States – a marker on a battlefield for instance- it is easy to decipher the context and historical significance. Soldiers passed their time with song and their lyrics are preserved to this day, performed by both pop artists and living historians. But what if these cultural artifacts reside outside the United States? Why is there a statue of Abraham Lincoln in the city of Manchester? How does a monument dedicated to the martyrs at the Lune Street Riots on Preston, Lancashire relate …

The Search For Authenticity In Tom Mccarthy’S Remainder, Nino Kiguradze

Dissertations and Theses

No abstract provided.

Defining The Relationship Between Maternal Care Behavior And Hearing Development In Wistar Rats, Jingyun Qiu

Dissertations and Theses

Previous studies in rodents have demonstrated the profound effects that variations in maternal care play during the postnatal development of the brain. However, much less is known about how maternal care affects hearing development. Recently, manipulations of maternal care have been investigated to accelerate hearing onset. We hypothesized that accelerated hearing development results from changes in maternal care behavior. To test this hypothesis, we used a selection model in which natural variations in maternal care were identified in a large cohort of dams by measuring the frequency of different behaviors including LG followed by selection of dams with LG scores …

A Phylogenetic And Environmental Analysis Of Brazilian Placosoma Lizards, Kai A. Farje-Van Vlack

Dissertations and Theses

Placosoma is a genus comprised of the Brazilian spectacled lizards P. champsonotus, P. cipoense, P. cordylinum, P. glabellum, and P. limaverdorum. While P. champsonotus, P. cordylinum, and P. glabellum occupy the southern coast of Brazil, P. cipoense is found in the montane grasslands north of that range, and P. limaverdorum was recently discovered in forest isolates that persist within the semi-arid Caatinga. This study elucidates the ecological and evolutionary relationships among these morphologically similar lizards. Using mitochondrial and nuclear gene sequences, genus-wide phylogenies were inferred through Bayesian inference and a species tree approach, …

Multi-Scale Assessment Of Bone Mechanics And The Mineral Phase Of Intramuscular Bone Of Atlantic Herring Fish, Svetlana Zeveleva

Dissertations and Theses

Bone tissue is a complex composite structure made up of a soft organic phase consisting of collagen I and non-collagenous proteins, and a hard inorganic phase consisting of mineral nanoplatelets. Given it’s compositional properties, bone is a unique stiff, tough, and strong biomaterial, making it exceptionally difficult to synthesize ex vivo. While the complete hierarchical structure may change with age and population, the basic building block components of mineralized collagen fibrils, are preserved. This study uses a model of intramuscular bone of the Atlantic herring fish, which present a simple structure, and no process of remodeling.

A multi-scale approach …

Understanding Adversarial Training: Improve Image Recognition Accuracy Of Convolution Neural Network, Naoki Ishibashi

Dissertations and Theses

Traditional methods of computer vision and machine learning cannot match human performance on tasks such as the recognition of handwritten digits. Recently many researchers work on Convolution Neural Network for image recognition, and get results as good as human being. Additionally, Image recognition task is getting more popular and high demand to apply to other fields, but also there are still many problems to utilize in everyday life. One of these problems is that several machine learning models, including neural networks, consistently misclassify adversarial examples—inputs formed by applying small but intentionally worst-case perturbations to examples from the dataset, such that …

The Political Water Web Of The United States, Omar Hammad

Dissertations and Theses

The United States’ water systems are interstate in their nature; these systems are governed by Congressional compact agreements. Water compacts have been influenced by common factors that have reverberated throughout the water-web of the country. These impacts varied in their scale, national level federal regulations, such as the Endangered Species Act of 1973, and recent concerns about climate change are macro-scale influences. Localized drivers such as regional economics and population change are localized impacts. While these concepts and issues influence water compacts as a whole, their impacts occur at different periods, albeit for the same reason. As such, we see …

Europe’S Refugee Crisis: Right-Wing Populism And Mainstream Cooption In Germany And France, Jihan Abdalla

Dissertations and Theses

In Europe’s biggest wave of refugees since World War II, over 1 million people fleeing protracted conflicts in Syria, Iraq and Afghanistan crossed the Mediterranean on unseaworthy boats in 2015 in a desperate bid to reach the continent. Rather than uniting to deal with the humanitarian situation, the European Union (EU), the world’s wealthiest and most integrated bloc, struggled to effectively manage the flow of refugees. Amid rising anti-immigration sentiment and nascent Euroscepticism, EU governments employed unilateral and security-driven responses aimed at limiting the number of refugees that would enter Europe. Europe’s Refugee Crisis, as it came to be known, …

From Gorbachev To The Present: Russian Migration To The United States, Kate Slavashevich

Dissertations and Theses

No abstract provided.

The Forgotten Caste Of The Quadroon In Nineteenth Century Literature, Johanna Sherrier

Dissertations and Theses

No abstract provided.

A Process Of No Return: Mediation In Civil Conflict, Carol Naranjo

Dissertations and Theses

This thesis project focuses on mediation in the context of civil conflict. There are various possible solutions to civil conflict. The parties may resort to the use of violence through military victories but there are also other peaceful solutions such as mediation. Although several methods are available to solve civil conflict, mediation has shown to have its successes in this area. Mediation, where a third party acts as a facilitator, allows for both warring parties to work quietly with the mediator, present their complaints and use the third party to become a go-between towards finding an acceptable solution that benefits …

The Origins Of Organized Crime, Danielle Hamilton

Dissertations and Theses

This paper will illustrate the correlation between democratic and market economy transitions and the increase of organized crime. This correlation exists despite the differences in political system prior to the democratic transition. What matters the most is that these transitions either occur at the same time or within a short window of time. Organized criminal groups thrive in unstable and failed states because of the lack of government and law enforcement interference in their illegal activities. However, these groups can also make a home in countries that have relatively short periods of transition between political and economic systems, despite the …

2d Vector Map And Database Design For Indoor Assisted Navigation, Luciano Caraciolo Albuquerque

Dissertations and Theses

In this paper we implemented a 2D Vector Map, map editor and Database design intended to provide an efficient way to convert cad files from indoor environments to a set of vectors representing hallways, doors, exits, elevators, and other entities embedded in a floor plan, and save them in a database for use by other applications, such as assisted navigation for blind people.

A graphical application as developed in C++ to allow the user to input a CAD DXF file, process the file to automatically obtain nodes and edges, and save the nodes and edges to a database for posterior …