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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 [14720]
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Masters Theses [19198]
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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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Accurate Small-Signal Modeling for Resonant Converters
(Virginia Tech, 2020-11-24)In comparison with PWM converters, resonant converters are gaining increasing popularity for cases in which efficiency and power density are at a premium. However, the lack of an accurate small-signal model has become an ... -
Thresholds in Space and Time
(Virginia Tech, 2020-11-23)In architecture there is perhaps no better opportunity to capture movement and change than in the design of thresholds. They can be a simple strip of metal beneath a doorway, barely noticed as you pass over it, or a grand ... -
Coexistence of Vehicular Communication Technologies and Wi-Fi in the 5 and 6 GHz bands
(Virginia Tech, 2020-11-20)The unlicensed wireless spectrum offers exciting opportunities for developing innovative wireless applications. This has been true ever since the 2.4 GHz band and parts of the 5 GHz bands were first opened for unlicensed ... -
Occurrence Statistics and Driving Mechanisms of Ionospheric Ultra-Low Frequency Waves Observed by SuperDARN Radars
(Virginia Tech, 2019-05-30)Ultra-low frequency (ULF; 1 mHz - 1 Hz) waves are known to play an important role in the transfer of energy from the solar wind to Earth's magnetosphere and ionosphere. The Super Dual Auroral Radar Network (SuperDARN) is ... -
Solar Wind-Magnetosphere-Ionosphere Coupling: Multiscale Study with Computational Models
(Virginia Tech, 2019-05-30)Solar wind-magnetosphere-ionosphere (SW-M-I) coupling is investigated with three different computational models that characterize space plasma dynamics on distinct spatial/temporal scales. These models are used to explore ... -
Maternal Experiences of Self-Identity and Family Identity after a Child acquires an Acquired Brain Injury: A Constructivist Grounded Theory Analysis
(Virginia Tech, 2020-11-19)An Acquired Brain Injury (ABI) can have lasting effects on the self-identity of the injured individual, but also on the self-identity of other family members. Using Contextual Family Stress Theory as a guiding theoretical ... -
Evaluation of amino acid transport and protein metabolism in the mammary gland of dairy cattle
(Virginia Tech, 2019-05-28)Improving our understanding of milk protein production regulation and AA transport is important for successfully formulating diets for AA and improving N efficiency. The objectives were to study protein synthesis regulation ... -
Take Shelter in the Sun
(Virginia Tech, 2020-11-17)For humans, architecture is a shelter for dwelling. People seek protection and a sense of belonging in their surroundings. Architecture should reveal the time passage, changes in weather and the character of the place in ... -
Leadership During Action Team Formation: The Influence of Shared Leadership Among Team Members During the Perioperative Process
(Virginia Tech, 2020)There are many leadership theories that dominate the field of Industrial and Organizational Psychology, however there is a lack of understanding as to which leadership processes may be most appropriate for action teams in ... -
Indigestion or Thriving Metabolism? People of Color-owned Restaurants Digesting Sustainability
(Virginia Tech, 2020-09-18)This study explores people of color-owned (POC) restaurants under the governance of Washington, DC (DC) who provide community programming. Since 2009 ‘sustainable’ legislative changes have affecting DC’s food industry, ... -
Insights on the Regulation of the PERIOD 2 Gene in the Cellular Response to DNA Damage
(Virginia Tech, 2019-05-24)Circadian rhythm is a ~24-h mechanism that keeps our physiology and behavior in synchrony with environmental changes. PERIOD2 (PER2) is a core component of the circadian clock and a candidate tumor suppressor as its knockout ... -
Investigating the Faculty Behavioral Intentions to Adopt Learning Management Systems (LMSs) in a Higher Education Institution in Saudi Arabia
(Virginia Tech, 2020-11-13)Learning Management Systems (LMSs) have been an essential part of the e-Learning ecosystem since the 1990s. LMSs have been developed and widely adopted by higher education institutions around the world. Despite the ... -
Identification of the presence and activity of the JAK-STAT pathway in canine solid tumors
(Virginia Tech, 2017-05-22)Background: The JAK-STAT pathway is a cellular signaling pathway, which acts normally in humans and animals in the control of multiple important functions. Dysregulation of this pathway has been identified in human cancers, ... -
The Dam Fighters: Commons Environmental Rhetoric, Rhetorical Citizenship, and Local Ethos
(Virginia Tech, 2020-11-11)In this dissertation project, I examine the ways in which a grassroots environmental organization, the Upper French Broad Defense Association (UFBDA), was able to contribute knowledge and voice concerns regarding a Tennessee ... -
Using Working Memory to Address the Validity-Diversity Dilemma: Incremental Validity and Subgroup Differences Compared to GMA
(Virginia Tech, 2019-05-17)General mental ability (GMA) has been found to be the best predictor of job knowledge and job performance, and it is widely-used for personnel selection decisions. However, the use of GMA in selection is a concern for ... -
Design, Analysis and Testing of a Self-reactive Wave Energy Point Absorber with Mechanical Power Take-off
(Virginia Tech, 2020-11-06)Ocean wave as a renewable energy source possesses great potential for solving the world energy crisis and benefit human beings. The total theoretical potential wave power on the ocean-facing coastlines of the world is ... -
Heat Transfer and Film Cooling Performance on a Transonic Converging Nozzle Guide Vane Endwall With Purge Jet Cooling and Dual Cavity Slashface Leakage
(Virginia Tech, 2020-11-06)The following study presents an experimental and computational investigation on the effects of implementing a dual cavity slashface configuration and varying slashface coolant leakage mass flow rate on the thermal performance ... -
An Investigation of Methods to Improve Area and Performance of Hardware Implementations of a Lattice Based Cryptosystem
(Virginia Tech, 2020-11-05)With continuing research into quantum computing, current public key cryptographic algorithms such as RSA and ECC will become insecure. These algorithms are based on the difficulty of integer factorization or discrete ... -
Seismic Slope Stability: A Comparison Study of Empirical Predictive Methods with the Finite Element Method
(Virginia Tech, 2020-11-05)This study evaluates the seismically induced displacements of a slope using the Finite Element Method (FEM) in comparison to the results of twelve empirical predictive approaches. First, the existing methods to analyze the ... -
Distributed Intelligence for Multi-Agent Systems in Search and Rescue
(Virginia Tech, 2020-11-05)Unfavorable environmental and (or) human displacement may engender the need for Search and Rescue (SAR). Challenges such as inaccessibility, large search areas, and heavy reliance on available responder count, limited ...
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