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 [14016]
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Masters Theses [19209]
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Undergraduate Theses [25]
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Virginia Tech ETD Resources [11]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Relationship Narratives: Appalachian Women's Experiences with Familial Process of Reentry
(Virginia Tech, 2019-08-20)The reentry process post incarceration has been identified to be difficult in the most ideal of situations and family support has been shown to be nearly essential to avoid re-incarceration (Bahr, Armstrong, Gibbs, Harris ... -
Modeling, Discontinuous Galerkin Approximation and Simulation of the 1-D Compressible Navier Stokes Equations
(Virginia Tech, 2019-08-20)In this thesis we derive time dependent equations that govern the physics of a thermal fluid flowing through a one dimensional pipe. We begin with the conservation laws described by the 3D compressible Navier Stokes ... -
Towards a Polyalgorithm for Land Use and Land Cover Change Detection
(Virginia Tech, 2018-02-23)Earth observation satellites (EOS) such as Landsat provide image datasets that can be immensely useful in numerous application domains. One way of analyzing satellite images for land use and land cover change (LULCC) is ... -
Modeling and Design of a SiC Zero Common-Mode Voltage Three-Level DC/DC Converter
(Virginia Tech, 2019-08-16)As wide-bandgap devices continue to experience deeper penetration in commercial applications, there are still a number of factors which make the adoption of such technologies difficult. One of the most notable issues with ... -
Harvest practices cause aberrations in pork quality
(Virginia Tech, 2019-08-16)Consumers are often confused and reluctant to purchase products from fresh retail meat counters that exhibit significant color variations. This hesitation to purchase results in annual profit loss to the pork industry. ... -
Vitamin D in Human Health and Performance: The Pursuit of Evidence-Based Practice in an Era of Scientific Uncertainty
(Virginia Tech, 2019)Background: Calciferol (vitamin D) is an essential nutrient that can be synthesized in the skin upon exposure to ultraviolet-B (UVB) light, or obtained through dietary and supplement sources. Traditionally known for its ... -
A Numerical and Statistical Analysis of the Fractured Rock Aquifer System in Ploemeur, France to Quantify Local and Regional Recharge
(Virginia Tech, 2019-08-14)A Numerical and Statistical Analysis of the Fractured Rock Aquifer System in Ploemeur, France to Quantify Recharge Stacey Elizabeth Law ABSTRACT Groundwater recharge is an essential metric for understanding and protecting ... -
Contemporary City Recreation Center
(Virginia Tech, 2019-08-13)Through a ramp circulation system connect each floor of the building and horizontally link inside and outside the gym with an urban environment. People experiencing continuing from in/out, enclose/opening, artificial/nature, ... -
The City's Edge-how architecture respond to different types of ground on a former landfill site in Lagos
(Virginia Tech, 2019-08-13)In the progress of city development What's your positon in a city What's an architecture's position in a city What's the condition of the city's edge -
Reframing the Ditch
(Virginia Tech, 2019-08-13)Reframing the Ditch explores the application of native canopy using green street tools as a method to move beyond minimums and improve biological diversity of stormwater conveyances in a way that is consistent with visual ... -
The Combinatorial Curve Neighborhoods of Affine Flag Manifold in Type A_{n-1}^(1)
(Virginia Tech, 2019-08-12)Let X be the affine flag manifold of Lie type A_{n-1}^(1) where n ≥ 3 and let W_{aff} be the associated affine Weyl group. The moment graph for X encodes the torus fixed points (which are elements of the affine Weyl group ... -
Design and Analysis of Low Reynolds Number Marine Propellers with Computational Fluid Dynamics (CFD) Transition Modeling
(Virginia Tech, 2019-08-12)Small-scale marine propellers operate at low Reynolds numbers, where laminar-turbulent transition of the boundary layer can impact the distributions of pressure and shear stress on the blade surface. Marine propellers ... -
A Bayesian Framework for Multi-Stage Robot, Map and Target Localization
(Virginia Tech, 2019)This thesis presents a generalized Bayesian framework for a mobile robot to localize itself and a target, while building a map of the environment. The proposed technique builds upon the Bayesian Simultaneous Robot Localization ... -
The Impact Dynamics of Weakly Charged Droplets
(Virginia Tech, 2019-08-07)Electric charges are often found in naturally or artificially formed droplets, such as raindrops and those generated by Kelvin's water dropper. In contrast to the impact of neutral droplets on a flat solid surface upon ... -
The Application of Intelligent Tires and Model Base Estimation Algorithms in Tire-road Contact Characterization
(Virginia Tech, 2017-02-13)Lack of drivers knowledge about the abrupt changes in pavement friction and poor performance of the vehicle stability, traction and ABS controllers on the low friction surfaces are the most important factors affecting car ... -
Monitoring and Preventing Data Exfiltration in Android-hosted Unmanned Aircraft System Applications
(Virginia Tech, 2019-08-06)With the dominance of Android in the smartphone market, malware targeting Android users has increased over time. Android applications are now being used to control unmanned aircraft systems (UAS) making smartphones the ... -
An Analytical Study on the Behavior of Reinforced Concrete Interior Beam-Column Joints
(Virginia Tech, 2019-08-06)Reinforced concrete (RC) moment frame structures make up a notable proportion of buildings in earthquake-prone regions in the United States and throughout the world. The beam-column (BC) joints are the most crucial regions ... -
A Water Garden: Celebrating the Beauty of Nature
(Virginia Tech, 2019-08-06)Nature, as the major consideration of the Organic Architecture of Frank Lloyd Wright, has constantly been favored as a path for a pure soul to communicate with the spiritual. Inspired by Wright's Organic Architecture and ... -
Strength and Performance of Steel Fiber Reinforced Concrete Post-Tensioned Flat Plates
(Virginia Tech, 2019-08-06)Load testing was performed on a one-third scale model steel fiber reinforced concrete post-tensioned flat plate. The specimen had nine 10ft x 10ft x 3in. bays along with a 2ft-6in. overhang. Distributed loading was applied ... -
Power Analysis and Prediction for Heterogeneous Computation
(Virginia Tech, 2018-02-12)Power, performance, and cost dictate the procurement and operation of high-performance computing (HPC) systems. These systems use graphics processing units (GPUs) for performance boost. In order to identify inexpensive-to-acquire ...
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