Doctoral Dissertations: Recent submissions
Now showing items 1-20 of 13979
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Three Essays on Money Input and Time Input in Food Poverty Measurement and Healthy Eating Index
(Virginia Tech, 2019-07-16)A healthy diet is related to a low risk of chronic diseases. A large body of research is devoted to improving social welfare by promoting healthy eating. This dissertation addresses the relation of food and health by ... -
Socio-cultural contexts in trauma recovery and post trauma growth in women who experienced intimate partner violence: A social constructivist lens
(Virginia Tech, 2019-07-18)Trauma recovery and post trauma growth are two desirable outcomes of a traumatic event. Meaning-making and narrative development are two processes that support both trauma recovery and post trauma growth. The way in which ... -
Truncation Error Based Mesh Adaptation and its Application to Multi-Mesh CFD
(Virginia Tech, 2019-07-18)One of the largest sources of error in a CFD simulation is the discretization error. One of the least computationally expensive ways of reducing the discretization error in a simulation is by performing mesh adaptation. ... -
A Dual Metamodeling Perspective for Design and Analysis of Stochastic Simulation Experiments
(Virginia Tech, 2019-07-17)Fueled by a growing number of applications in science and engineering, the development of stochastic simulation metamodeling methodologies has gained momentum in recent years. A majority of the existing methods, such as ... -
Integrated Tunable LC Higher-Order Microwave Filters for Interference Mitigation
(Virginia Tech, 2018-01-23)Modern and future communication and radar systems require highly reconfigurable RF front-ends to realize the vision of Software-Defined Radio (SDR), where a single digitally-enabled radio is able to cover multiple bands ... -
Modeling, Analysis, and Algorithmic Development of Some Scheduling and Logistics Problems Arising in Biomass Supply Chain, Hybrid Flow Shops, and Assembly Job Shops
(Virginia Tech, 2019-07-15)In this work, we address a variety of problems with applications to `ethanol production from biomass', `agile manufacturing' and `mass customization' domains. Our motivation stems from the potential use of biomass as an ... -
Sediment Management for Aquatic Life Protection Under the Clean Water Act
(Virginia Tech, 2018-01-19)Although sediment is a natural component of stream ecosystems, excess sediment presents a threat to natural freshwater ecosystems. Sediment management is complicated because sediment can be dissolved in the water column, ... -
Ionic Self-Assembled Multilayers in a Long Period Grating Sensor for Bacteria and as a Source of Second-Harmonic Generation Plasmonically Enhanced by Silver Nanoprisms
(Virginia Tech, 2019-07-12)Ionic self-assembled multilayers (ISAMs) can be formed by alternately dipping a substrate in anionic and cationic polyelectrolytes. Each immersion deposits a monolayer via electrostatic attraction, allowing for nanometer-scale ... -
Pipelines for Computational Social Science Experiments and Model Building
(Virginia Tech, 2019-07-12)There has been significant growth in online social science experiments in order to understand behavior at-scale, with finer-grained data collection. Considerable work is required to perform data analytics for custom ... -
Solutions for Internet of Things Security Challenges: Trust and Authentication
(Virginia Tech, 2019-07-12)The continuing growth of Internet-connected devices presents exciting opportunities for future technology. These Internet of Things (IoT) products are being manufactured and interleaved with many everyday activities, which ... -
A Narrative Inquiry of Black Leader Self-Determination for Urban Food Justice: A Critical Race Theory Perspective
(Virginia Tech, 2019-07-12)Leaders within the black community are among the most important assets for black people in America. Given all that black Americans have experienced and still endure from social, economic, and political disenfranchisement, ... -
Synthesis of New Molecule-Based Magnets using Bridging Organic Radicals
(Virginia Tech, 2019-07-12)Several new families of organic acceptors that are candidates as building blocks of molecule-based ferrimagnets were synthesized and characterized. These families include fluorodicyanostilbenes, a tetrachlorodicyanostilbene, ... -
Fullerene Based Nanomaterials for Biomedical Applications
(Virginia Tech, 2018-01-18)Trimetallic nitride endohedral fullerenes (TNT-EMF) have been recognized for their multifunctional capabilities in biomedical applications. Functionalized gadolinium-loaded fullerenes attracted much attention as a potential ... -
Challenges and Opportunities for Denitrifying Bioreactors in the Mid-Atlantic
(Virginia Tech, 2018-01-18)Sustaining the global population depends upon modern agricultural practices reliant on large inputs of nitrogen (N) fertilizer, but export of excess N from agroecosystems has negative environmental consequences, such as ... -
A Risk Based Approach to Intelligent Transportation Systems Security
(Virginia Tech, 2019-07-11)Security threats to cyber-physical systems are targeting institutions and infrastructure around the world, and the frequency and severity of attacks are on the rise. Healthcare manufacturing, financial services, education, ... -
Cyber-Physical Security for Advanced Manufacturing
(Virginia Tech, 2018-01-16)The increased growth of cyber-physical systems, controlling multiple production processes within the manufacturing industry, has led to an industry susceptible to cyber-physical attacks. Differing from traditional cyber-attacks ... -
Study of Fluid Forces and Heat Transfer on Non-spherical Particles in Assembly Using Particle Resolved Simulation
(Virginia Tech, 2018-01-16)Gas-solid flow is fundamental to many industrial processes. Extensive experimental and numerical studies have been devoted to understand the interphase momentum and heat transfer in these systems. Most of the studies have ... -
Multicultural Competence for Counseling Students Experiencing Cultural Immersion
(Virginia Tech, 2019-07-09)A number of studies have examined how counselor educators can facilitate counselor development of multicultural competence within the context of graduate counseling programs (e.g., Chu-Lien Chao, 2012; Constantine, 2001; ... -
Essays on Environmental Economics with a Focus on Non-market Valuation
(Virginia Tech, 2019-07-09)This dissertation consists of two research projects in the area of Environmental Economics: water-recycling technology adoption and its cost-effectiveness in the U.S. horticulture industry (in Chapter 2), and urban tree ... -
Regioselective Synthesis of Polysaccharide-based Polyelectrolytes
(Virginia Tech, 2018-01-12)Polysaccharides are one of the most abundant and diverse families of natural polymers, and have an incredibly wide range of natural functions including structural reinforcement, energy storage, aqueous rheology modification, ...
