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 [16194]
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Masters Theses [21406]
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Virginia Tech ETD Resources [14]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Factors Affecting White-tailed Deer Recruitment in Virginia
(Virginia Tech, 2020-06-12)Deer ( Odocoileus spp.) are an important cultural and economic resource. They are the most popular game species in the United States and the number one driver of conservation funding. On the other hand, they also ... -
Discretization Error Estimation Using the Error Transport Equations for Computational Fluid Dynamics Simulations
(Virginia Tech, 2021-06-11)Computational Fluid Dynamics (CFD) has been widely used as a tool to analyze physical phenomena involving fluids. To perform a CFD simulation, the governing equations are discretized to formulate a set of nonlinear algebraic ... -
A Parametric Study on the Effects of External Stimuli on the Aqueous Dissolution of Lithium Disilicate Glass
(Virginia Tech, 2021-06-11)The chemical resistance of glass is an important property for many applications. This property has been extensively studied for many types of glass under static conditions (no liquid is removed during the experiment). ... -
Control and Modeling of High-Frequency Voltage Regulator Modules for Microprocessor Application
(Virginia Tech, 2021-06-11)The future voltage regulator module (VRM) challenges of high bandwidth control with fast transient response, high current output, simple implementation, and efficient 48V solution are tackled in this dissertation. With the ... -
Geochemical and Paleontological investigations of the Neoproterozoic-Cambrian Transition: Case Studies on geochemical clast provenance, emerging paleo redox proxies, and ambiguous dubiofossils
(Virginia Tech, 2022-12-02)The transition from the Neoproterozoic to the early Cambrian world was a critical time in the co-evolution of life and the environment, when dramatic changes in the environment, including global glaciations and rising ... -
Context Dependent Gaze Metrics for Evaluation of Laparoscopic Surgery Manual Skills
(Virginia Tech, 2021-06-10)With the growing adoption of laparoscopic surgery practices, high quality training and qualification of laparoscopic skills through objective assessment has become critical. While eye-gaze and instrument motion analyses ... -
Beyond Consensus: A Rhetorical Genre Analysis of the Mountain Valley Pipeline's 401 Public Hearings.
(Virginia Tech, 2021-06-10)This study seeks to understand public and institutional uptake of the public hearing genre. More specifically, this study examines how public hearing genre conventions are established and how those conventions inform and ... -
Nanoscale Liquid Dynamics in Membrane Matrices: Insights into Confinement, Molecular Interactions, and Hydration
(Virginia Tech, 2021-06-10)This dissertation focuses on the fundamental understanding of liquid dynamics confined in polymer membranes. Such knowledge guides the development of better polymer membranes for practical applications and contributes to ... -
Sensor-based Characterization and Control of Additive Biomanufacturing Processes
(Virginia Tech, 2021-06-10)According to data provided by the U.S. Department of Health and Human Services, the waiting list of organ transplantation as of April 2021 is approximately 107,550 out of which 90,908 patients are waiting for a kidney and ... -
Relational Outlier Detection: Techniques and Applications
(Virginia Tech, 2021-06-10)Nowadays, outlier detection has attracted growing interest. Unlike typical outlier detection problems, relational outlier detection focuses on detecting abnormal patterns in datasets that contain relational implications ... -
A Study of Machine Learning Approaches for Biomedical Signal Processing
(Virginia Tech, 2021-06-10)The introduction of high-throughput molecular profiling technologies provides the capability of studying diverse biological systems at molecular level. However, due to various limitations of measurement instruments, data ... -
Regulating Traffic Flow and Speed on Large Networks: Control and Geographical Self Organizing Map (Geo-SOM) Clustering
(Virginia Tech, 2021-06-09)Traffic growth and limited roadway capacity decrease traveler mobility and increase traffic congestion and fuel consumption. Traffic managers employ various control techniques to mitigate the aforementioned problems. One ... -
An Exploratory Study of Effects of Lecture's Acoustic Features on L1 Chinese Listeners' Listening Comprehension of Online L2 English Lectures
(Virginia Tech, 2021-06-09)This study explored the effects of lecture speech rate and duration on L1 Chinese listeners' listening comprehension of online L2 English lectures on free-recall and cued-recall questions. There are many factors that may ... -
Measuring Healthy Beverage Intake and Exploring Opportunities to Improve Beverage Consumption
(Virginia Tech, 2021-06-09)Background: Poor beverage consumption habits pose significant health concerns. Delivering health behavior change interventions via social media is an emerging area of health research and may provide a promising way to ... -
Small Molecules as Amyloid Inhibitors: Molecular Dynamic Simulations with Human Islet Amyloid Polypeptide (IAPP)
(Virginia Tech, 2021-06-09)Islet amyloid polypeptide (IAPP) is a 37-residue amyloidogenic hormone implicated in the progression of Type II Diabetes (T2D). T2D affects an estimated 422 million people yearly and is a co-morbidity with numerous diseases. ... -
Unintended Survivability: Comparative Reactions to Israel's Nuclear Posture
(Virginia Tech, 2022-11-30)The overarching goal of this study is to conduct an investigation of regional perspectives on the impact of Israel's nuclear monopoly on nuclear decisions in the Middle East. This Dissertation addresses the question as to ... -
The Role of Interstitial Fluid Flow in the Progression of Glioblastoma and Alzheimer's Disease
(Virginia Tech, 2022-11-30)The human brain is a complex organ that is responsible for regulating all the physiological processes in the body, ranging from memory to movement. As humans age, the brain goes through a variety of changes including a ... -
Exploring the Dynamics of a Mechanical Watch Lever Escapement using Finite Element Analysis
(Virginia Tech, 2022-11-30)This thesis focuses on the development of a short-term, operationally stable finite element-based simulation of a mechanical watch lever escapement. This was accomplished in four steps: by choosing a reference escapement ... -
Optical and Thermal Radiative Simulation of an Earth Radiation Budget Instrument
(Virginia Tech, 2021-06-08)Researchers at the NASA Langley Research Center (LaRC) are developing a next-generation instrument for monitoring the Earth radiation budget (ERB) from low Earth orbit. This instrument is called the DEMonstrating the ... -
Multimaterial multifunctional fibers for biomedical applications
(Virginia Tech, 2021-06-08)The aim of my Ph.D. thesis is to summarize my research on the development of multimateiral multifunctional fibers for bio-related application, mainly in the fields of neural interfacing and bioimpedance sensing. Understanding ...
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