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 [14856]
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Masters Theses [19598]
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Undergraduate Theses [27]
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Virginia Tech ETD Resources [14]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Architecture as Living Memory: Building Across Borders
(Virginia Tech, 2021-01-15)Border delineations and walls have been used to protect cities and towns throughout history. In the present age of modern surveillance and advanced military technology however, physical walls have much less significance ... -
Exploring Sibling Relationships in Latino/a/x Immigrant Families
(Virginia Tech, 2021-01-15)Siblings are the longest lasting relationships most individuals may experience in their life. What makes sibling relationships unique is the overlap of both shared and unshared experiences. While there is limited research ... -
Refugee migration stress and family function: A phenomenological study of refugee mothers from East and Central Africa
(Virginia Tech, 2019-07-25)Refugee families who flee their homes as a result of conflict or persecution and face stressful migration experiences often struggle with trauma that may put them at increased risk for family discord and dysfunction. The ... -
Design and Implementation of a Multiphase Buck Converter for Front End 48V-12V Intermediate Bus Converters
(Virginia Tech, 2019-07-25)The trend in isolated DC/DC bus converters is to increase the output power in the same brick form factors that have been used in the past. Traditional intermediate bus converters (IBCs) use silicon power metal oxide ... -
Convergence of Kernel Methods for Modeling and Estimation of Dynamical Systems
(Virginia Tech, 2021-01-14)As data-driven modeling becomes more prevalent for representing the uncertain dynamical systems, concerns also arise regarding the reliability of these methods. Recent developments in approximation theory provide a new ... -
Protection of Falling Conductors into Flammable Vegetation Faults
(Virginia Tech, 2021-01-14)Increasing modernization of the world has brought about a human component to natural disasters, which are exacerbated by the growing threat of climate change. The Western United States and Australia have witnessed some of ... -
Advances in Radiation Heat Transfer and Applied Optics, Including Application of Machine Learning
(Virginia Tech, 2021-01-14)Artificial neural networks (ANNs) have been widely used in many engineering applications. This dissertation applies ANNs in the field of radiation heat transfer and applied optics. The topics of interest in this dissertation ... -
Conical Intersections and Avoided Crossings of Electronic Energy Levels
(Virginia Tech, 2021-01-14)We study the unique phenomena which occur in certain systems characterized by the crossing or avoided crossing of two electronic eigenvalues. First, an example problem will be investigated for a given Hamiltonian resulting ... -
Essays on Development in Sub-Saharan African Countries
(Virginia Tech, 2021-01-14)As one of the fastest growing regions in the world, crop production and education remain two of the most important topics for the development of sub-Saharan African (SSA) countries. This dissertation is composed of three ... -
Thermoacoustic Analysis and Experimental Validation of Statistically-Based Flame Transfer Function Extracted from Computational Fluid Dynamics
(Virginia Tech, 2019-07-24)Thermoacoustic instabilities arise and sustain due to the coupling of unsteady heat release from the flame and the acoustic field. One potential driving mechanism for these instabilities arise when velocity fluctuations ... -
Ego Depletion-Induced Aberrant Driving in the Post-Work Commute
(Virginia Tech, 2020-12-11)Spillover research has shown that workday stress hampers commuting safety, while ego depletion research has demonstrated that prior self-regulation leads to performance decrements in subsequent tasks. This study sought to ... -
Implementation and Demonstration of a Time Domain Modeling Tool for Floating Oscillating Water Columns
(Virginia Tech, 2021-01-13)Renewable energy is a critical component in combating climate change. Ocean wave energy is a source of renewable energy that can be harvested using Wave Energy Converters (WECs). One such WEC is the floating Oscillating ... -
Acoustic Waveguides and Sensors for High Temperature and Gamma Radiation Environment
(Virginia Tech, 2021-01-12)Sensing in harsh environments is always in great need. Although many sensors and sensing systems are reported, such as optical fiber sensors and acoustic sensors, they all have drawbacks. In this dissertation, fused ... -
Securing the Public Cloud: Host-Obscure Computing with Secure Enclaves
(Virginia Tech, 2021-01-12)As the practice of renting remote computing resources from a cloud computing platform becomes increasingly popular, the security of such systems is a subject of continued scrutiny. This thesis explores the current state ... -
Factors Behind Construction Companies' Purchasing Decisions of Wood Products and Insight into how Local (In-State) Wood Product Suppliers can have a Bigger Market Impact
(Virginia Tech, 2021-01-12)Companies in the construction industry have a wide range of choices of suppliers for the company's needs in building materials. Local (in-state) suppliers within key southern states have issues gaining market share within ... -
A Geodynamic Investigation of Magma-Poor Rifting Processes and Melt Generation: A Case Study of the Malawi Rift and Rungwe Volcanic Province, East Africa
(Virginia Tech, 2021-01-12)Our understanding of how magma-poor rifts accommodate strain remains limited largely due to sparse geophysical observations from these rift systems. To better understand magma-poor rifting processes, chapter 1 of this ... -
Structural basis for sulfatide recognition by Disabled-2
(Virginia Tech, 2021-01-12)Disabled-2 (Dab2) is an adaptor protein that plays critical roles in various biological processes, including protein endocytosis, platelet activation and aggregation, tumor growth, and development. In platelets, Dab2 ... -
Optimizing the Use of Reclaimed Asphalt Pavement (RAP) in Hot Mix Asphalt Surface Mixes
(Virginia Tech, 2021-01-12)The most common use of reclaimed asphalt pavement (RAP) is in the lower layers of a pavement structure, where it has been proven as a valid substitute for virgin materials. Instead, the use of RAP in surface mixes is more ... -
A Statistical Approach to Modeling Wheel-Rail Contact Dynamics
(Virginia Tech, 2021-01-12)The wheel-rail contact mechanics and dynamics that are of great importance to the railroad industry are evaluated by applying statistical methods to the large volume of data that is collected on the VT-FRA state-of-the-art ... -
Pore-scale Study of Flow and Transport in Energy Georeservoirs
(Virginia Tech, 2019-07-22)Optimizing proppant pack conductivity and proppant-transport and -deposition patterns in a hydraulic fracture is of critical importance to sustain effective and economical production of petroleum hydrocarbons. In this ...
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