ETDs: Virginia Tech Electronic Theses and Dissertations
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Virginia Tech has been a world leader in electronic theses and dissertation initiatives for more than 20 years. On January 1, 1997, Virginia Tech was the first university to require electronic submission of theses and dissertations (ETDs). Ever since then, Virginia Tech graduate students have been able to prepare, submit, review, and publish their theses and dissertations online and to append digital media such as images, data, audio, and video.
University Libraries staff are currently digitizing thousands of pre-1997 theses and dissertations and loading them into VTechWorks. Most of these theses and dissertations are fully available to the public, but we will, in general, honor requests by the item's author to restrict access to Virginia Tech only. See our process for Requesting that Material be Amended or Removed.
To search all Virginia Tech print and digital theses and dissertations, use the University Libraries ETD resource guide.
Materials that are restricted to Virginia Tech only may be requested via your own university or public library's Interlibrary Loan program or through the VTechWorks request form that appears when you try to access the item. You might also be able to obtain a copy of the work through ProQuest's database of theses and dissertations. If you are on a Virginia Tech campus but are unable to find the pre-1997 thesis or dissertation you are seeking in VTechWorks, you may also be able to order a physical copy from library storage. Please check the library catalog at http://www.lib.vt.edu/ for physical copies.
The guidelines that apply to Virginia Tech's graduate students as ETD authors can be found at http://guides.lib.vt.edu/ETDguide.
New! - Help video: Searching for Electronic Theses and Dissertations in VTechWorks
Collections in this community
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Doctoral Dissertations [14591]
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Masters Theses [19736]
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Undergraduate Theses [27]
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Virginia Tech ETD Resources [13]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Integrated Model-Based Impact Assessment of Climate Change and Land Use Change on the Occoquan Watershed
(Virginia Tech, 2019-02-19)Forecasted changes to climate and land use were used to model variations in the streamflow characteristics of Occoquan watershed and water quality in the Occoquan reservoir. The combination of these two driving forces has ... -
Digital-Based Zero-Current Switching (ZCS) Control Schemes for Three-Level Boost Power-Factor Correction (PFC) Converter
(Virginia Tech, 2020-08-11)With the increasing demands on electronic loads (e.g. desktop, laptop, monitor, LED lighting and server) in modern technology-driven lives, performance of switched-mode power supply (SMPS) for electronics have been growing ... -
Stepping Back to Move Forward : A Poem Written in Light and Brick
(Virginia Tech, 2020-08-11)Louis Kahn, the master of modern architecture, said, "Even a brick wants to be something " the phrase explained how important it is to respect the properties and materials, each material has a structure or form that can ... -
Is Gloss a cue for Real-World Object Size?
(Virginia Tech, 2020-08-10)Two separate lines of research in object recognition are studies of materials perception and studies of real-world object size perception. Recent object size investigations of texture indicate mid-level features may cue ... -
Hydrothermal Transport in the Panama Basin and in Brothers Volcano using Heat Flow, Scientific Deep Sea Drilling and Mathematical Models
(Virginia Tech, 2019-02-15)Two-thirds of submarine volcanism in the Earth's ocean basins is manifested along mid-ocean ridges and the remaining one-third is revealed along intraoceanic arcs and seamounts. Hydrothermal systems and the circulation ... -
A House for the Families of Abraham: A Multi-Faith Community Center for Interfaith Dialogue
(Virginia Tech, 2020-08-07)Religion has the ability to bring a diversity of people together in a way that crosses political, social, and economic boundaries, but divides them through conflicting worship practices, rituals, and teachings. This is ... -
Simulation and Integration of a 6-DOF Controllable Multirotor Vehicle
(Virginia Tech, 2020-08-07)The purpose of this thesis is to develop an existing design of a fully controllable multi-rotor vehicle toward simulating small satellite dynamics, enabling technology development to be accelerated and component failure ... -
Mechanics of Phase Transformation in NiTi Shape Memory Alloys at The Atomistic Scale
(Virginia Tech, 2019-02-14)During the past decade, Shape Memory Alloys (SMAs), particularly Nickel-Titanium (NiTi) alloys, have received increasing attention mainly because of their promising role to be integrated into multifunctional systems for ... -
Numerical Investigations of Geologic CO2 Sequestration Using Physics-Based and Machine Learning Modeling Strategies
(Virginia Tech, 2020-08-06)Carbon capture and sequestration (CCS) is an engineering-based approach for mitigating excess anthropogenic CO2 emissions. Deep brine aquifers and basalt reservoirs have shown outstanding performance in CO2 storage based ... -
Essays on the Management of Online Platforms: Bayesian Perspectives
(Virginia Tech, 2020-08-06)This dissertation presents three essays that focus on various aspects pertaining to the management of online platforms, defined as "digital services that facilitate interactions between two or more distinct, but interdependent ... -
Effects of Trimethylamine N-Oxide on Mouse Embryonic Stem Cell Properties
(Virginia Tech, 2020-08-06)Trimethylamine N-oxide (TMAO) is a metabolite derived from dietary choline, betaine, and carnitine via intestinal microbiota metabolism. In several recent studies, TMAO has been shown to directly induce inflammation and ... -
Meteorological Impacts on Streamflow: Analyzing Anthropogenic Climate Change's Effect on Runoff and Streamflow Magnitudes in Virginia's Chesapeake Bay Watershed
(Virginia Tech, 2020-08-05)Anthropogenic climate change will impact Virginia's hydrologic processes in unforeseen ways in the coming decades. This research describes variability in meteorology (temperature and precipitation) and associated hydrologic ... -
Optimization Methods for Distribution Systems: Market Design and Resiliency Enhancement
(Virginia Tech, 2020-08-05)The increasing penetration of proactive agents in distribution systems (DS) has opened new possibilities to make the grid more resilient and to increase participation of responsive loads (RL) and non-conventional generation ... -
Assessing Structure–Property Relationships of Crystal Materials using Deep Learning
(Virginia Tech, 2020-08-05)In recent years, deep learning technologies have received huge attention and interest in the field of high-performance material design. This is primarily because deep learning algorithms in nature have huge advantages over ... -
Hybrid Modeling and Simulation of Stochastic Effects on Biochemical Regulatory Networks
(Virginia Tech, 2020-08-04)A complex network of genes and proteins governs the robust progression through cell cycles in the presence of inevitable noise. Stochastic modeling is viewed as a key paradigm to study the effects of intrinsic and extrinsic ... -
Buying to Thrive: Exploring the Potential for Market-Based Approaches to Contribute to Increases in Diet Diversity in Mozambique
(Virginia Tech, 2020-08-04)Globally, more than two billion people suffer from deficiencies in micronutrients that are essential for human health. Low-income populations in low- and middle-income countries are especially vulnerable to these deficiencies. ... -
DNA Sequence and Haplotype Variation Analysis of Inflammatory Response Genes NLRX1, IL6, and IL8 in the Turkey (Meleagris gallopavo)
(Virginia Tech, 2019-02-08)Genotype-phenotype analyses continue to be the primary goal for genome analyses in livestock and poultry breeding. Essential to accomplish this goal is the need to identify variation at the genomic level. To test the ... -
The Grieving Process of Opioid Overdose Bereaved Parents in Maryland
(Virginia Tech, 2020-07-31)In recent years, the opioid epidemic in the United States has garnered attention on a federal and local level due to the increasing number of fatal overdoses. This study aimed to explore the experiences of parents who have ... -
Distributed Machine Learning for Autonomous and Secure Cyber-physical Systems
(Virginia Tech, 2020-07-31)Autonomous cyber-physical systems (CPSs) such as autonomous connected vehicles (ACVs), unmanned aerial vehicles (UAVs), critical infrastructure (CI), and the Internet of Things (IoT) will be essential to the functioning ... -
Three Essays on the Evolution of the Determinants of Educational Attainment and its Consequences
(Virginia Tech, 2019-02-07)The dissertation focuses on the different determinants of education, their effects on the educational outcome, and the overall effect of education on the lifetime consequences. The first chapter focuses on the inequality ...
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