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 [16096]
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Masters Theses [21252]
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Virginia Tech ETD Resources [14]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Fire, flooding, and felids: Deer and puma spatial ecology and predator-prey interactions in dynamic, subtropical wildlands
(Virginia Tech, 2021-04-06)Cyclic and extreme ecological disturbances have the capacity to alter resources and thereby animal populations. Interactions between disturbance and resource availability can influence predator-prey interactions. Predator-prey ... -
Determining the Pathogenesis and Enzootic Transmission of Usutu Virus
(Virginia Tech, 2022-09-02)Usutu virus (USUV) is an emerging zoonotic virus within the Flaviviridae family that can cause neurological disease in humans and wild birds. USUV is maintained in an enzootic cycle between wild birds, primarily passerine ... -
Transport and Adsorption in Nanoscale Confinement
(Virginia Tech, 2022-09-27)Nanoscale confinement can be defined as a space confined by interfaces with at least one nanometer-scale dimension. Objects under nanoscale confinement have a large ratio of interfacial area to volume that makes interfacial ... -
Distribution of Resource Use in an Informal Learning Environment: Using Sensor Technologies to Bring Geography Indoors
(Virginia Tech, 2022-09-27)Indoor spaces have become increasingly prevalent in human lives. While scholarship in other fields has studied the relationship between humans and the indoors, it has not been readily investigated in Geography. This study ... -
Improved Environmental Characterization to Support Natural Resource Decision Making: (1) Distributed Soil Characterization, and (2) Treatment of Legacy Nutrients
(Virginia Tech, 2022-09-27)Environmental concerns are becoming increasingly relevant during a period of hemorrhaging ecosystem goods and services. Restoring these would result in positive outcomes for public health and economic benefit. This thesis ... -
Private-Client Industry Specialization and Public-Client Audit Quality
(Virginia Tech, 2021-04-05)This study examines whether auditor industry expertise in private clients influences audit quality of public client engagements in the United States. Private companies are significant to the U.S. economy as well as audit ... -
Evaluation of Voltage-Controlled Active Gate-Drivers for SiC MOSFET Power Semiconductors
(Virginia Tech, 2022-09-26)With the development and use of Silicon-Carbide [Silicon-Carbide (SiC)] devices come a host of advantages, including higher switching frequency, improved thermal performance, and higher voltage rating. This higher switching ... -
Habitat and host plant effects on the seasonal abundance of Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) among fruit orchards in northern Virginia
(Virginia Tech, 2021-04-02)Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), brown marmorated stink bug, is an invasive, polyphagous pest that has disrupted integrated pest management programs in Mid-Atlantic tree fruit orchards since 2010. The ... -
Deep Recurrent Q Networks for Dynamic Spectrum Access in Dynamic Heterogeneous Envirnments with Partial Observations
(Virginia Tech, 2022-09-23)Dynamic Spectrum Access (DSA) has strong potential to address the need for improved spectrum efficiency. Unfortunately, traditional DSA approaches such as simple "sense-and-avoid" fail to provide sufficient performance ... -
The Role of STING-Mediated Neuroinflammation in Traumatic Brain Injury
(Virginia Tech, 2022-09-23)Despite its prevalence, there are currently zero treatments available for traumatic brain injuries (TBI). Neuroinflammation is a key aspect of the secondary injury process, but remains poorly understood. Recent work has ... -
Reduction of Solid Uranium Dioxide in Calcium Salts
(Virginia Tech, 2022-07-01)Nuclear energy has gained crucial importance since it has a minor impact on climate change and greenhouse gas releases; additionally, the other energy sources are insufficient to reach the world's energy needs without ... -
Comparison of Computational Notebook Platforms for Interactive Visual Analytics: Case Study of Andromeda Implementations
(Virginia Tech, 2022-09-22)Existing notebook platforms have different capabilities for supporting visual analytics use. It is not clear which platform to choose for implementing visual analytics notebooks. In this work, we investigated the problem ... -
Do Roots Bind Soil? Comparing the Physical and Biological Role of Plant Roots in Streambank Fluvial Erosion
(Virginia Tech, 2022-09-22)This study is the first to consider how the combination of root physical effects, microbial production of EPS, and root effects on the hydrodynamic boundary layer could influence streambank soil erodibility. Specifically, ... -
Balanced asphalt mix design and pavement distress predictive models based on machine learning
(Virginia Tech, 2022-09-22)Traditional asphalt mix design procedures are empirical and need random and lengthy trials in a laboratory, which can cost much labor, material resources, and finance. The initiative (Material Genome initiative) was launched ... -
Toward Designing Active ORR Catalysts via Interpretable and Explainable Machine Learning
(Virginia Tech, 2022-09-22)The electrochemical oxygen reduction reaction (ORR) is a very important catalytic process that is directly used in carbon-free energy systems like fuel cells. However, the lack of active, stable, and cost-effective ORR ... -
Estimation of Runway Throughput with Reduced Wake Separation, Runway Optimization, and Runway Occupancy Time Consideration
(Virginia Tech, 2022-09-22)This thesis estimates potential runway throughput gains using a reduced wake separation based on the 123 most prevalent aircraft in the United States fleet. The analysis considers Runway Occupancy Time (ROT) constraint ... -
Flavin-dependent Enzymes in Natural Product Biosynthesis
(Virginia Tech, 2021-03-31)Natural products are biologically active metabolites produced by fungi, bacteria, and plants that have an extended application in pharmaceutical and chemical industries. Because of their chemical versatility, flavoenzymes ... -
#SOS³: A Phenomenological Study of School Counseling Supervisors' Clinical Supervision Experiences
(Virginia Tech, 2022-09-20)School counselors support students' social-emotional, academic, and career readiness (ASCA, 2019). However, who provides support for school counselors to navigate this herculean responsibility? Supervision provides ... -
Terminal Behavioral Modeling of Electric Machines for Real-time Emulation and System-level Analysis
(Virginia Tech, 2022-09-20)Stability and sustainability of operation of interconnected power converter systems has been an important focus of study in the field of power electronics and power systems. With ever-increasing application of electrical ... -
Wireless Sensing and Fusion using Deep Neural Networks
(Virginia Tech, 2022-09-20)Deep Neural Networks (DNNs) have been proposed to solve many difficult problems within the context of wireless sensing. Indoor localization and human activity recognition (HAR) are two major applications of wireless sensing. ...
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