• MIMO-OFDM Symbol Detection via Echo State Networks 

  Zhou, Zhou (Virginia Tech, 2019-10-30)

  Echo state network (ESN) is a specific neural network structure composed of high dimensional nonlinear dynamics and learned readout weights. This thesis considers applying ESN for symbol detection in multiple-input, ...
• Identifying Asymmetries in Web-based Transfer Student Information that is Believed to be Correct using Fully Integrated Mixed Methods 

  Reeping, David Patrick (Virginia Tech, 2019-12-04)

  Transfer between community colleges and four-year institutions has become more common as student mobility increases. Accordingly, the higher education system has coped with the fluidity by establishing articulation agreements ...
• Consistent Fabrication of Ultrasmall PLGA Nanoparticles and their Potential Biomedical Applications 

  Lohneis, Taylor Paige (Virginia Tech, 2019-12-04)

  Nanotechnology and its potential for biomedical applications has become an area of increasing interest over the last few decades. Specifically, ultrasmall nanoparticles, ranging in size from 5 to 50 nm, are highly sought ...
• Space-time Description of Supersonic Jets with Thermal Non-uniformity 

  Daniel, Kyle Andreas (Virginia Tech, 2019-12-04)

  The supersonic jet plumes that exhaust from the engines of tactical aircraft produce intense noise signatures that expose the Navy personnel working on the deck of aircraft carriers to dangerously high levels of noise that ...
• Development of an Improved and Internally-Consistent Framework for Evaluating Liquefaction Damage Potential 

  Upadhyaya, Sneha (Virginia Tech, 2019-12-04)

  Soil liquefaction continues to be one of the leading causes of ground failure during earthquakes, resulting in significant damage to infrastructure around the world. The study presented herein aims to develop improved ...
• School Leadership Practices, Student Socioeconomic Status, and Student Achievement in One Virginia School District 

  Coefield, Cora Beatress (Virginia Tech, 2019-12-04)

  The literature review for this study suggests that socioeconomic status is a factor in student achievement results. Over the decades the variety of factors contributing to the changes in the achievement gap among subgroups ...
• Designing Scaffolds for Directed Cell Response in Tissue Engineering Scaffolds Fabricated by Vat Photopolymerization 

  Chartrain, Nicholas (Virginia Tech, 2019-12-04)

  Vat photopolymerization (VP) is an additive manufacturing (AM) technology that permits the fabrication of parts with complex geometries and feature sizes as small as a few microns. These attributes make VP an attractive ...
• Series-Connection of Silicon Carbide MOSFET Modules using Active Gate-Drivers with dv/dt Control 

  Raszmann, Emma Barbara (Virginia Tech, 2019-12-04)

  This work investigates the voltage scaling feasibility of several low voltage SiC MOSFET modules operated as a single series-connected switch using active gate control. Both multilevel and two-level topologies are capable ...
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  Assessing the Long-term Impacts of White-nose Syndrome on Bat Communities Using Acoustic Surveys at Fort Drum Military Installation   

  Nocera, Tomas (Virginia Tech, 2018-06-12)

  With declines in abundance and changing distribution of White-nose Syndrome (WNS)-affected bat species, increased reliance on acoustic monitoring is now the new "normal". As such, the ability to accurately identify individual ...
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  The Influence of Heterogeneous Landscapes on Banded Mongoose (Mungos mungo) Behavior in Northern Botswana: Inferences about Infectious Disease Transmission 

  Nichols, Carol Anne (Virginia Tech, 2018-06-12)

  Infectious disease transmission is driven by a complex suite of drivers with behavior and landscape dynamics contributing to epidemics across host-pathogen systems. However, our understanding of the interaction between ...
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  Hydroxyl Radical Production via Acoustic Cavitation in Ultrasonic Humidifier Systems 

  Altizer, Chase Duncan (Virginia Tech, 2018-06-12)

  Ultrasonic humidifiers use sound vibrations at frequencies higher than can be heard by humans (> 20,000 Hz) to generate aerosolized water also have potential for inducing sonochemical reactions for chemicals present in ...
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  High-Definition Raman-based Distributed Temperature Sensing 

  Frazier, Janay Amber Wright (Virginia Tech, 2018-06-12)

  Distributed Temperature Sensing (DTS) has been used in a variety of different applications. Its ability to detect temperature fluctuations along fiber optic lines that stretch for several kilometers has made it a popular ...
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  Accelerating Catalyst Discovery via Ab Initio Machine Learning 

  Li, Zheng (Virginia Tech, 2019-12-03)

  In recent decades, machine learning techniques have received an explosion of interest in the domain of high-throughput materials discovery, which is largely attributed to the fastgrowing development of quantum-chemical ...
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  An Examination of Social Media Policy for Educators in the Commonwealth of Virginia 

  Mabe, Faith Grenada (Virginia Tech, 2018-06-11)

  This study investigated the presence and content of school policies used by Virginia school divisions to address issues arising from educators' use of social media. The study also explored Virginia school divisions' policy ...
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  Tracking Disaster Dynamics for Urban Resilience: Human-Mobility and Semantic Perspectives 

  Wang, Yan (Virginia Tech, 2018-06-11)

  Fostering urban resilience and creating agility to disaster response is an urgent task faced by cities worldwide in the context of climate change and increasing frequencies of natural disasters. Understanding and tracking ...
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  Effects of Keratin Biomaterial Therapeutics on Cellular and Inflammatory Mechanisms in Injury and Disease Models 

  Waters, Michele (Virginia Tech, 2018-06-11)

  Keratins are fibrous structural proteins found in human hair that have been used to develop bioactive and biocompatible constructs for a wide variety of tissue engineering and healthcare applications. Their ubiquity, ...
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  Statistically Evaluating Water Consumption Historically and Across Multiple Users in Virginia 

  DiCarlo, Morgan (Virginia Tech, 2018-06-11)

  This study explores key aspects of water usage in Virginia via a broad-scale analysis of multiple water users through thirty years of time-series records from the Virginia Water Use Data System. A full spectrum of users ...
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  Anisotropy of Passive and Active Rat Vagina under Biaxial Loading 

  Huntington, Alyssa Joan (Virginia Tech, 2018-06-11)

  Pelvic organ prolapse, the decent of the pelvic organs from their normal anatomical position, is a common condition among women that is associated with mechanical alterations of the vaginal wall. In order to characterize ...
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  The Quality of Public High School Facilities Among Selected School Divisions, Commonwealth of Virginia 

  Crossman, Matthew Wayne (Virginia Tech, 2018-06-11)

  The purpose of the study was to determine whether or not a variance in the quality of the public high school facilities existed among the Commonwealth of Virginia school divisions, since the 1982 Peccia study, An Analysis ...
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  Developing a Stormwater Pond Filter to Capture Phosphorus and Other Pollutants 

  Houston, Stephanie Chung-Pei-Hua (Virginia Tech, 2018-06-11)

  Excess nutrients, particularly phosphorus (P), significantly contribute to anthropogenic eutrophication, which negatively impacts ecosystems, human health, and the economy. Traditional Best Management Practices (BMPs) such ...

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