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 [13437]
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Masters Theses [18370]
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Undergraduate Theses [12]
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Virginia Tech ETD Resources [11]
Documentation about creating and formatting Vinginia Tech ETDs.
Recent Submissions
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Power efficient Transmit/Receive (T/R) Elements for Integrated mm-Wave Phased Arrays
(Virginia Tech, 2017-08-01)Thanks to a small wavelength (large bandwidth) combined with a low loss transmission window around 94 GHz and 120 GHz, the 75-120 GHz frequency band in millimeter wave (mm-wave) provides a promising opportunity for high ... -
Intelligent Tire Based Tire Force Characterization and its Application in Vehicle Stability and Performance
(Virginia Tech, 2017-08-01)In any automotive system, the tires play a very crucial role in defining both the safety and performance of the vehicle. The interaction between the tire and the road surface determines the vehicle's ability to accelerate, ... -
Understanding the Impacts of Data Integrity Attacks in the Context of Transactive Control Systems
(Virginia Tech, 2018)The rapid growth of internet-connected smart devices capable of exchanging energy price information and adaptively controlling the consumption of connected loads, has paved the way for transactive control to make ... -
Semi-Supervised Deep Learning Approach for Transportation Mode Identification Using GPS Trajectory Data
(Virginia Tech, 2018-12-11)Identification of travelers' transportation modes is a fundamental step for various problems that arise in the domain of transportation such as travel demand analysis, transport planning, and traffic management. This thesis ... -
Dynamics of Driven Vortices in Disordered Type-II Superconductors
(Virginia Tech, 2019-01-22)We numerically investigate the dynamical properties of driven magnetic flux vortices in disordered type-II superconductors for a variety of temperatures, types of disorder and sample thicknesses. We do so with the aid of ... -
A Frame + Infill House in Lima, Peru
(Virginia Tech, 2019-01-22)This work is a study of the relationship between frame, infill, and earth. A search of structure defining space through threshold. Ultimately, it proposes a structural frame as a collection of rooms. -
Individual Motivation To Seek Couple Therapy: An Application of the Health Belief Model
(Virginia Tech, 2019-01-22)Despite the well-established effectiveness of couple therapy for reducing distress and improving relationship satisfaction (Cohen, 1988; Christensen and Heavey, 1999), less than a fourth of couples seek couple therapy prior ... -
Application of Network Reliability to Analyze Diffusive Processes on Graph Dynamical Systems
(Virginia Tech, 2019-01-22)Moore and Shannon's reliability polynomial can be used as a global statistic to explore the behavior of diffusive processes on a graph dynamical system representing a finite sized interacting system. It depends on both the ... -
Exploring the Effect of Caregiver Burden among Alzheimer's Caregivers: A Test of The Stress Process Model
(Virginia Tech, 2019-01-22)The diagnosis of Alzheimer's disease (AD) is stressful for both patients and their family caregivers (FCG). As the disease progresses, the patient's memory, functioning status, and behavioral problems get worse, and the ... -
Student Temperament Assessment And Its Relationship With The Selection Of Accounting As A Major
(Virginia Tech, 2019-01-22)Personality tests have long been utilized to assist in the assessment of individuals. This study analyzes David Keirsey's temperament types and college students intending to major in accounting. The recruiting and retaining ... -
Metal-cyclam based Metal-Organic Frameworks for CO2 Chemical Transformations
(Virginia Tech, 2018-06-20)Designing new materials for CO2 capture and utilization is one of the most challenging research topics. Metal-organic frameworks (MOFs) are one of the most efficient CO2 adsorbents, as well as an emerging class of heterogeneous ... -
A Thermal Switch from Thermoresponsive Polymer Aqueous Solutions
(Virginia Tech, 2018-11-29)Thermal switch is very important in today’s world and it has varies of applications including heat dissipation and engine efficiency improving. The commercial thermal switch based on mechanical design is very slow and the ... -
EpiViewer: An Epidemiological Application For Exploring Time Series Data
(Virginia Tech, 2019-11)Visualization plays an important role in epidemic time series analysis and forecasting. Viewing time series data plotted on a graph can help researchers identify anomalies and unexpected trends that could be overlooked if ... -
Finding Intersection Between School and Community
(Virginia Tech, 2018-11-01)This thesis seeks to create an architectural response for learning spaces that gathers community. A school and community center are explored through the interaction at public and private zones, and day and night operation. ... -
HE-MT6D: A Network Security Processor with Hardware Engine for Moving Target IPv6 Defense (MT6D) over 1 Gbps IEEE 802.3 Ethernet
(Virginia Tech, 2017-07-28)Traditional static network addressing allows attackers the incredible advantage of taking time to plan and execute attacks against a network. To counter, Moving Target IPv6 Defense (MT6D) provides a network host obfuscation ... -
Comparison of Quantitative and Semi-Quantitative Assessments of Benthic Macroinvertebrate Community Response to Elevated Salinity in central Appalachian Coalfield Streams
(Virginia Tech, 2019-01-18)Anthropogenic salinization of freshwater is a global concern. In freshwater environments, elevated levels of major ions, measured as total dissolved solids (TDS) or specific conductance (SC), can cause adverse effects on ... -
Rapeseed (Brassica napus L.) Termination and Integration of Halauxifen into Virginia Cotton (Gossypium hirsutum L.) Production
(Virginia Tech, 2019-01-18)Cover crops have become an important part of cropping systems in the United States, especially in the Mid-Atlantic region. Rapeseed is a popular choice due to its deep growing taproot which creates soil macropores and ... -
Pathogenesis and Cross-species Infection of Hepatitis E Virus
(Virginia Tech, 2019-01-18)Hepatitis E Virus (HEV), the causative agent of hepatitis E, is a zoonotic pathogen of worldwide significance. The genus Orthohepevirus A of the family Hepeviridae includes all mammalian strains of HEV and consists of 8 ... -
Equine Trophectoderm Cells and Their Role in Fetal-Maternal Recognition.
(Virginia Tech, 2019-01-18)Establishment and maintenance of a successful pregnancy requires signaling from the embryo to the mare, a process known as maternal recognition. Six days after fertilization, the trophectoderm (TE), a placenta precursor ... -
Bridging
(Virginia Tech, 2019-01-17)It all started with one of my deep memories -- when I was a child, and first saw QINGMING FESTIVAL, a masterpiece created by great painter, Zhang Zeduan, I was attracted by the riverside city scene of Song dynasty, and was ...
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