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 [13847]
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Masters Theses [18745]
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Undergraduate Theses [24]
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Virginia Tech ETD Resources [11]
Documentation about creating and formatting Virginia Tech ETDs.
Recent Submissions
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Young Mothers in Appalachia: Meanings of Help from Family
(Virginia Tech, 2018-12)The present study employed interpretive phenomenology analysis to explore the lived experiences of young mothers as it pertains to intergenerational family support within the Appalachian context. Informed by symbolic ... -
Biomimetic Design of Poly(ether ether ketone) Composites for Bone Replacement
(Virginia Tech, 2017-11-27)Hip and knee replacements are a common solution for patients whom have experienced loss in knee cartilage or have fractured their bones due to the weakening of the bone from osteoporosis. The number of bone replacements ... -
I'm the Smart Kid: Adult Attitudes and Perceptions about Enrichment and Special Education
(Virginia Tech, 2019-05-17)Within the educational community, there is a growing shift towards the development of essential skills, emphasizing process-skills over mastery of content. This shift is mirrored in the rapid changes in workplace-related ... -
Applications of gauged linear sigma models
(Virginia Tech, 2019-05-17)This thesis is devoted to a study of applications of gauged linear sigma models. First, by constructing (0,2) analogues of Hori-Vafa mirrors, we have given and checked proposals for (0,2) mirrors to projective spaces, toric ... -
Essays on Economic Decision Making
(Virginia Tech, 2019-05-17)This dissertation focuses on exploring individual and strategic decision problems in Economics. I take a different approach in each chapter to capture various aspects of decision problems. An overview of this dissertation ... -
Testing of the Transverse Tendon Behavior in the Varina-Enon Bridge
(Virginia Tech, 2019-05-17)Post-tensioned segmental concrete bridges have been used in the United States since the mid 80's. Post-tensioning is very economical and efficient for bridges with very long spans. A segmental concrete bridge uses ... -
Circuits and Modulation Schemes to Achieve High Power-Density in SiC Grid-connected Converters
(Virginia Tech, 2019-05-16)The emergence of silicon-carbide (SiC) devices has been a 'game changer' in the field of power electronics. With desirable material properties such as low-loss characteristics, high blocking voltage, and high junction ... -
Validation of EcoRouting and an Analysis of the Impact of Traffic on Route Choice
(Virginia Tech, 2019-05-15)Battery Electric Vehicles and Plug-in Hybrid Vehicles are increasingly becoming more popular in recent years. Stricter regulations from government agencies to curb emissions and reduce impact on climate have led to automobile ... -
Target Locating in Unknown Environments Using Distributed Autonomous Coordination of Aerial Vehicles
(Virginia Tech, 2019-05-14)The use of autonomous aerial vehicles (UAVs) to explore unknown environments is a growing field of research; of particular interest is locating a target that emits a signal within an unknown environment. Several physical ... -
Design, Analysis and Fabrication of Complex Structures using Voxel-based modeling for Additive Manufacturing
(Virginia Tech, 2017-11-20)A key advantage of Additive Manufacturing (AM) is the opportunity to design and fabricate complex structures that cannot be made via traditional means. However, this potential is significantly constrained by the use of a ... -
Adjustable Energy Saving Device for Transom Stern Hulls
(Virginia Tech, 2019-05-10)The study presents a numerical investigation about the hydrodynamic characteristics of a transom mounted interceptor on the Oliver Hazard Perry class frigate (FFG-7), in order to assess the potential of propulsion power ... -
Planning, Preparing, and Implementing a One-to-One Computing Initiative in K-12 Education: A Case Study of a School Division's Journey Toward a One-to-One Computing Environment for Students and Staff
(Virginia Tech, 2019-05-10)One-to-one computing initiatives are becoming a part of many school divisions across the United States as district leadership analyzes ways to improve student learning and create 21st century learning spaces. Studying how ... -
Rhetoric Beyond the Digital/Physical Divide: The Internet and Digital and Physical Hybridity
(Virginia Tech, 2019-05-10)In this dissertation, I report findings from three case studies of rhetoric about the internet based on a rhetorical theory of the internet as physical and digital hybrid. I understand digital and physical hybridity as ... -
The Sound of Fractions: teaching inherently abstract representations from an aural and embodied approach
(Virginia Tech, 2019-05-10)Learning fractions is the focus for much of elementary school mathematics instruction because it is important and can be difficult. Fractions constitute a system of thinking about numbers and representations that differs ... -
Madoff Madness: A Textual Analysis of the SEC's response to the Madoff Ponzi Scheme
(Virginia Tech, 2019-05-10)On December 11, 2008, the financial world was in a panic as the United States Securities and Exchange Commission (SEC) announced the arrest of Bernard L. Madoff of Bernard L. Madoff Investment Securities, LLC, for orchestrating ... -
Assessing the Relationship between Occupational Injury Risk and Performance: the Efficacy of Adding Adjustability and Using Exoskeletons in the Context of a Simulated Drilling Task
(Virginia Tech, 2017-11-16)Work-related musculoskeletal disorders (WMSDs) continue to occur despite an increasing understanding of the risk factors that initiate these disorders. Ergonomics is commonly seen as a health and safety approach that has ... -
Assessing the Efficacy of Bicycle Helmets in Reducing Risk of Head Injury
(Virginia Tech, 2019-05-09)Although cycling offers many health and environmental benefits, it is not an activity free of injury risk. Increases in cycling popularity in the United States over the past 15 years have been paralleled by a 120% growth ... -
A Combinatorially Explicit Relative Möbius Function on Affine Grassmannians and a Proposal for an Affine Infinite Symmetric Group
(Virginia Tech, 2019-05-09)For an affine Weyl group W, we explicitly determine the elements for which the Möbius function of the subposet of affine Grassmannians under the Bruhat order is non-zero by utilizing the quantum Bruhat graph of the classical ... -
Precision Measurement of the Proton's Weak Charge using Parity-Violating Electron Scattering
(Virginia Tech, 2017-11-15)The Qweak experiment has precisely determined the weak charge of the proton Qp w by measuring the parity-violating asymmetry in elastic electron-proton scattering at a low momentum transfer of Q2 = 0.0249 (GeV/c)2 . Qpw ... -
Novel Applications of Geospatial Analysis in the Modeling of Infectious Diseases
(Virginia Tech, 2019-05-08)At the intersection of geography and public health, the field of spatial epidemiology seeks to use the tools of geospatial analysis to answer questions about disease. In this work we explore two areas: the use of geostatistical ...
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