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 [14936]
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Masters Theses [19671]
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Undergraduate Theses [27]
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Virginia Tech ETD Resources [14]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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New Optimal-Control-Based Techniques for Midcourse Guidance of Gun-Launched Guided Projectiles
(Virginia Tech, 2021-03-17)The following is an exploration into the optimal guidance and control of gun-launched guided projectiles. Unlike their early counterparts, modern-day gun-launched projectiles are capable of considerable accuracy. This ... -
A Macroergonomics Path to Human-centered, Adaptive Buildings
(Virginia Tech, 2019-09-26)Human-building relationships impact everyone in industrialized society. We spend approximately 90% of our lives in the built environment. Buildings have a large impact on the environment; consuming 20% of worldwide energy ... -
Reducing Human Disturbance to Atlantic Flyway Shorebirds Using Social Science Methods
(Virginia Tech, 2021-03-18)Human disturbance is a significant threat to shorebirds in North America. Disturbance can result in direct mortality or have long-term impacts on the survival of shorebirds. Land managers employ a variety of management ... -
Assessment Of Consumer Perceptions About Food Processing Technologies For Cooperative Extension Educational Initiatives
(Virginia Tech, 2019-09-25)New food processing technologies are needed to create safe, high-quality food products that are still considered "fresh" by consumers. Despite the numerous benefits attributed to 'food processing', consumers continue to ... -
Design and Characterization of a Coaxial Plasma Railgun for Jet Collision Experiments
(Virginia Tech, 2021-03-17)Plasma railguns are electromagnetic accelerators used to produce controlled high velocity plasma jets. This thesis discusses the design and characterization of a small coaxial plasma railgun intended to accelerate argon-helium ... -
Educational Leaders' Perceptions of the Impact of MBTI Professional Development on Leadership Practices in One School Division in Virginia
(Virginia Tech, 2021-03-17)The purpose of this study was to identify the perceived impact of Myers-Briggs Test Indicator (MBTI) professional development on principal and assistant principal educational leadership practices in one school division in ... -
Athlete Monitoring in American Collegiate Football
(Virginia Tech, 2021-03-17)American football is one of the most popular sports in the United States. However, in comparison to other mainstream sports such as soccer and rugby, there is limited literature using scientific principles and theory to ... -
Proposed in vitro model of neutrophil swarming in a chronic, low-level inflammatory state
(Virginia Tech, 2019-09-24)Chronic, low-grade inflammation is an underlying condition across a globally increasing number of debilitating diseases. These diseases include obesity, atherosclerosis, and diabetes and their resultant low-grade inflammation ... -
Collocation Method and Model Predictive Control for Accurate Landing of a Mars EDL vehicle
(Virginia Tech, 2021-02-02)This thesis aims at investigating numerical methods through which the accuracy in landing of a Mars entry-descent-landing (EDL) vehicle can be improved. The methods investigated include the collocation method and model ... -
Screening and Engineering Phenotypes using Big Data Systems Biology
(Virginia Tech, 2019-09-20)Biological systems display remarkable complexity that is not properly accounted for in small, reductionistic models. Increasingly, big data approaches using genomics, proteomics, metabolomics etc. are being applied to ... -
Multi-layer Optimization Aspects of Deep Learning and MIMO-based Communication Systems
(Virginia Tech, 2019-09-20)This dissertation addresses multi-layer optimization aspects of multiple input multiple output (MIMO) and deep learning-based communication systems. The initial focus is on the rate optimization for multi-user MIMO (MU-MIMO) ... -
Agroforestry in the Temperate Landscape: Precedent, Practice, and Design Proposal
(Virginia Tech, 2019-09-20)ACADEMIC ABSTRACT Temperate agroforestry systems are an important area of research and practice in Eastern North America with the goal of creating more diverse, productive, and environmentally sound agricultural landscapes ... -
Quantification of the Elastic and Relaxation Properties of Human Tunica Albuginea under Biaxial Loading
(Virginia Tech, 2019-09-20)Peyronie's disease (PD) affects the tunica albuginea of the penis with a formation of dense and fibrous plaques. The plaques can cause a variety of symptoms in the patient such as pain during erection, erectile dysfunction, ... -
On the Security and Reliability of Fixed-Wing Unmanned Aircraft Systems
(Virginia Tech, 2019-09-20)The focus of this dissertation is on developing novel methods and extending existing ones to improve the security and reliability of fixed-wing unmanned aircraft systems (UAS). Specifically, we focus on three strands of ... -
ANC of UAS Rotor Noise using Virtual Error Sensors
(Virginia Tech, 2021-03-12)Traditional active noise control (ANC) systems rely on a physical sensor to measure the error signal at the desired location of attenuation. The error signal is then used to update an adaptive controller, which ultimately ... -
Anomalous Information Detection in Social Media
(Virginia Tech, 2021-03-10)This dissertation focuses on identifying various types of anomalous information pattern in social media and news outlets. We focus on three types of anomalous information, including (1) media censorship in news outlets, ... -
Optimum First Failure Loads of Sandwich Plates/Shells and Vibrations of Incompressible Material Plates
(Virginia Tech, 2021-03-11)Due to high specific strength and stiffness as well as outstanding energy-absorption characteristics, sandwich structures are extensively used in aircraft, aerospace, automobile, and marine industries. With the objective ... -
Red fox ecology and interactions with piping plovers on Fire Island, New York
(Virginia Tech, 2021-03-11)Red foxes (Vulpes vulpes) have been identified as a key predator of the threatened piping plover (Charadrius melodus) along the U.S. Atlantic coast. However, little is known about coastal red fox ecology, making it difficult ... -
Investigation of Momentum and Heat Transfer in Flow Past Suspensions of Non-Spherical Particles
(Virginia Tech, 2021-03-11)Investigation of momentum and heat transfer between the fluid and solid phase is critical to the study of fluid-particle systems. Dense suspensions are characterized by the solid fraction (ratio of solid volume to total ... -
Free and Forced Vibration of Linearly Elastic and St. Venant-Kirchhoff Plates using the Third Order Shear and Normal Deformable Theory
(Virginia Tech, 2019-09-18)Employing the Finite Element Method (FEM), we numerically study three problems involving free and forced vibrations of linearly and nonlinearly elastic plates with a third order shear and normal deformable theory (TSNDT) ...
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