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 [15822]
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Masters Theses [20953]
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Undergraduate Theses [30]
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Virginia Tech ETD Resources [14]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Adaptive evolution, sex-linkage, and gene conversion in the voltage-gated sodium channels of toxic newts and their snake predators
(Virginia Tech, 2022-05-27)Understanding how genetic changes ultimately affect morphology and physiology is essential for understanding and predicting how organisms will adapt to environmental changes. Although most traits are complex and involve ... -
Assisting Spatial Referencing for Collaborative Augmented Reality
(Virginia Tech, 2022-05-27)Spatial referencing denotes the act of referring to a location or an object in space. Since it is often essential in different collaborative activities, good support for spatial referencing could lead to exceptional ... -
A Framework for Automated Discovery and Analysis of Suspicious Trade Records
(Virginia Tech, 2022-05-27)Illegal logging and timber trade presents a persistent threat to global biodiversity and national security due to its ties with illicit financial flows, and causes revenue loss. The scale of global commerce in timber and ... -
Closure: Transforming Source Code for Faster Fuzzing
(Virginia Tech, 2022-05-27)Fuzzing, the method of generating inputs to run on a target program while monitoring its execution, is a widely adopted and pragmatic methodology for bug hunting as a means of software hardening. Technical improvements in ... -
Message Authentication Codes On Ultra-Low SWaP Devices
(Virginia Tech, 2022-05-27)This thesis focuses on specific crypto algorithms, Message Authentication Codes (MACs), running on ultra-low SWaP devices. The type of MACs we used is hash-based message authentication codes (HMAC) and cipher-block-chaining ... -
Slamming of High-Speed Craft: A Machine Learning and Parametric Study of Slamming Events
(Virginia Tech, 2022-05-27)Slamming loads are the critical structural design load for high-speed craft. In addition to damaging the hull structure, payload, and injuring personnel, slamming events can also significantly limit operating envelopes and ... -
New Computational Methodologies for Microstructure Quantification
(Virginia Tech, 2022-05-26)This work explores physics-based and data-driven methods for material property prediction for metallic microstructures while indicating the context and benefit for microstructure- sensitive design. From this, the use of ... -
A Climatological Analysis of Upper-Tropospheric Velocity Potential Fields using Global Weather Reanalysis, 1958-2020
(Virginia Tech, 2022-05-26)Upper-tropospheric (200 hPa) velocity potential is useful in identifying areas of rising or sinking atmospheric motions on varying temporal scales (e.g., weekly, seasonal, interannual) especially in the global tropics. ... -
Synoptic-Scale Atmospheric Conditions Associated with Flash Drought Initiation in Puerto Rico and the Caribbean
(Virginia Tech, 2022-05-26)While conventional drought has been studied for many years, new research focuses on different aspects and types of drought. Flash Drought is a relatively new area of research in drought literature, dating back to the last ... -
An Experimental Investigation into the Passive Reconfiguration of Flexible Plates Near a Free Surface
(Virginia Tech, 2022-05-26)Reconfiguration refers to the ability of a flexible structure to change its shape, allowing it to reduce its area perpendicular to the flow, to reduce drag. Decreasing the flexural rigidity of human-made structures can ... -
Distance Sets and Gap Lemma
(Virginia Tech, 2022-05-26)Many problems in geometric measure theory are centered around finding conditions and structures on a set to guarantee that its distance set must be large. Two notions of structure that are of importance in this work are ... -
Metrohelper: A Real-time Web-based System for Metro Incident Detection Using Social Media
(Virginia Tech, 2022-05-26)In recent years the usage of public transit services has been rapidly increased, thanks to huge progress on network technologies. However, the disruptions in modern public transit services also increased, due to aging ... -
Drivers and Impacts of Smoldering Peat Fires in the Great Dismal Swamp
(Virginia Tech, 2022-05-26)Peatlands are a diverse type of wetland ecosystem, characterized by high levels of soil organic matter, that provide a wide array of ecosystem services including water storage and filtration, carbon sequestration, and ... -
Investigating Reproductive Phenology and Alloparental Care in Leuciscid Fishes using Niche Theory Approaches
(Virginia Tech, 2022-05-26)Mutualism is an understudied phenomenon across taxa, but is important to the persistence and structure of communities. The role of positive interactions in supporting threatened species is critically important given that ... -
Asymptotic distribution of eigenvalues of random matrices and characterization of the Gaussian distribution by rotational invariance
(Virginia Polytechnic Institute and State University, 1970)The study falls in the area of random equations; in particular properties of random matrices have been studied. The dissertation makes precise some statistical theories of spectra developed in recent years by a number of ... -
Vehicle Wheel Energy Reduction at Intersections using Signal Timing and Adaptive Cruise Control
(Virginia Tech, 2022-05-25)The Hybrid Electric Vehicle Team (HEVT) at Virginia Tech participates in the 4-Year EcoCAR Mobility Challenge organized by Argonne National Laboratory. The objective of this competition is to modify a stock 2019 internal ... -
The Role of CASK in Central Nervous System Function and Disorder
(Virginia Tech, 2022-05-25)Understanding how different regions of the central nervous system (CNS) are affected by genetic insults is critical to advancing the study of CNS pathologies. The cerebellum is one such region which is disproportionately ... -
Multi-scale Investigations of Geological Carbon Sequestration in Deep Saline Aquifers
(Virginia Tech, 2022-05-25)Geological carbon dioxide (CO2) sequestration (GCS) in deep saline aquifers is viewed as a viable solution to dealing with the impact of anthropogenic CO2 emissions on global warming. The trapping mechanisms that control ... -
Towards a Comprehensive Bicycle Motion Behavior Model and Naturalistic Cycling Dataset
(Virginia Tech, 2022-05-25)Most of the existing bicycle flow traffic research is limited to characterizing the longitudinal motion of bicyclists based on the assumption that there is no significant differences between the dynamics of a single-file ... -
Practical Feedback and Instrumentation Enhancements for Performant Security Testing of Closed-source Executables
(Virginia Tech, 2022-05-25)The Department of Homeland Security reports that over 90% of cyberattacks stem from security vulnerabilities in software, costing the U.S. $109 billion dollars in damages in 2016 alone according to The White House. As NIST ...
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