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 [14639]
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Masters Theses [19762]
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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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An Operational Concept of an IoT System for the Palletized Distribution Supply Chain
(Virginia Tech, 2020-09-23)In recent years, Internet-of-Things technology (IoT) has been the subject of research in a diverse field of applications, given its essential role in transitioning society towards a more interconnected paradigm of conducting ... -
Interpolants, Error Bounds, and Mathematical Software for Modeling and Predicting Variability in Computer Systems
(Virginia Tech, 2020-09-23)Function approximation is an important problem. This work presents applications of interpolants to modeling random variables. Specifically, this work studies the prediction of distributions of random variables applied to ... -
Property-Process-Property Relationships in Powder Bed Fusion Additive Manufacturing of Poly(phenylene sulfide): A Case Study Toward Predicting Printability from Polymer Properties
(Virginia Tech, 2020-09-21)Powder bed fusion (PBF) is one of seven technology modalities categorized under the term additive manufacturing (AM). Beyond the advantages of fabricating complex geometries and the "tool-less manufacturing" paradigm common ... -
Latent Walking Techniques for Conditioning GAN-Generated Music
(Virginia Tech, 2020-09-21)Artificial music generation is a rapidly developing field focused on the complex task of creating neural networks that can produce realistic-sounding music. Generating music is very difficult; components like long and short ... -
Analytical and Experimental Investigation of Low-Cycle Fatigue Fracture in Structural Steel
(Virginia Tech, 2020-09-21)The mechanism of metal material failure due to inelastic cyclic deformations is commonly described as Low-Cycle Fatigue (LCF). Fracture in steel structures caused by earthquakes can be associated with this mechanism. ... -
Going Deeper with Images and Natural Language
(Virginia Tech, 2019-03-29)One aim in the area of artificial intelligence (AI) is to develop a smart agent with high intelligence that is able to perceive and understand the complex visual environment around us. More ambitiously, it should be able ... -
Evaluating Watershed and Stream-Channel Drivers of In-Stream Turbidity in Virginia and North Carolina
(Virginia Tech, 2020-09-18)Accurately predicting sediment delivery has been a long-standing problem in the field of water resource management. Many different watershed equations and models have been developed such as the Universal Soil Loss Equation ... -
Temporal Dynamics of the Defense Cascade
(Virginia Tech, 2020)Understanding physiological responses to threat can inform therapeutic interventions for phobias, anxieties, and PTSD. The defense cascade is reviewed as a theoretical model that predicts behavioral and physiological ... -
Milner's Theory of Status Relations and Cyberbullying Among U.S. Adolescents
(Virginia Tech, 2020-09-17)This research examines the relationship between status and cyberbullying among U.S. adolescents. It distinguishes between several status variables and three categories of involvement in cyberbullying: bullies, victims, and ... -
Finding Typhoid Mary: Identifying Latent Carriers of Salmonella enterica serovar Typhimurium
(Virginia Tech, 2020-09-16)Salmonella enterica serovar Typhimurium (S. Typhimurium) is an important human pathogen. The Centers for Disease Control and Prevention (CDC) estimates that 1,027,561 people become ill with nontyphoidal Salmonellosis ... -
500 feet of Sunset
(Virginia Tech, 2020-09-15)The Sunset is a natural phenomenon that occurs every single day. Arguably, the sunset is one of the most romanticized natural event in all forms of art. In this wider context, the hypothesis posits architecture as an ... -
Leader Perceptions of Campus Community Partnerships in a Community College Setting
(Virginia Tech, 2020-09-15)Given the mission of community colleges, their leaders are often responsible for developing resources to support student success and improve relationships with surrounding communities. To accomplish these goals, community ... -
Low Carbon Architecture: New Approach Toward Sustainability in Relation to Existing Buildings
(Virginia Tech, 2020-09-15)The built environment puts the greatest pressure on the natural environment out of all human activities, so it has a fundamental obligation to be environmentally sustainable. Carbon dioxide (CO2) or carbon emissions is a ... -
Applying Natural Language Processing and Deep Learning Techniques for Raga Recognition in Indian Classical Music
(Virginia Tech, 2020-08-27)In Indian Classical Music (ICM), the Raga is a musical piece's melodic framework. It encompasses the characteristics of a scale, a mode, and a tune, with none of them fully describing it, rendering the Raga a unique concept ... -
Impedance-based Nondestructive Evaluation for Additive Manufacturing
(Virginia Tech, 2020-09-15)Impedance-based Non-Destructive Evaluation for Additive Manufacturing (INDEAM) is rooted in the field of Structural Health Monitoring (SHM). INDEAM generalizes the structure-to-itself comparisons characteristic of the SHM ... -
Understanding the Impact of a Serrated Trailing Edge on the Unsteady Hydrodynamic Field
(Virginia Tech, 2020-09-15)Trailing edge noise is a common noise source in aerodynamic applications, such as wind turbines, duct fan blades, and propellers. As sound is a nuisance for people near this machinery, methods of reducing trailing edge ... -
Bioaugmentation and Retention of Anammox Granules to a Mainstream Deammonification Bio-Oxidation Pilot with a Post Polishing Anoxic Partial Denitrification/Anammox Moving Bed Biofilm Reactor
(Virginia Tech, 2019-03-25)The Chesapeake Bay watershed has seen an increase in population, nutrient loading, and stringent effluent limits; therefore, cost-effective technologies must be explored and implemented to intensify the treatment of regional ... -
Electromagnetic Vector-Sensor Direction-of-Arrival Estimation in the Presence of Interference
(Virginia Tech, 2020-09-14)This research investigates signal processing involving a single electromagnetic vector-sensor, with an emphasis on the problem regarding signal-selective narrowband direction-of-arrival (DOA) estimation in the presence of ... -
Fire History of an Acidic Barrens Complex: A Methods Assessment of Fire Return Intervals
(Virginia Tech, 2019-03-22)Fire-scarred trees provide an important source of data and direct evidence for understanding past fires and vegetation dynamics. Although dendrochronological fire scar records provide fine-scale temporal and spatial ... -
Genetic and Maternal Factors Underlying Early Milk Production and Their Influence on Calf Health
(Virginia Tech, 2020-09-11)The quality of early milk produced by dams is affected by various factors (i.e. breed, age, parity, environment, nutrition, management). The impact of these factors on the quality of milk then have subsequent effects on ...
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