Doctoral Dissertations: Recent submissions
Now showing items 1-20 of 12579
-
An assessment of the impact of the OSHA enforcement program on the occupational safety and health market
(Virginia Polytechnic Institute and State University, 1978) -
A public choice analysis of millage issue elections for financing public schools
(Virginia Polytechnic Institute and State University, 1975) -
SCANNING PROBE MICROSCOPY STUDY OF MOLECULAR NANOSTRUCTURES ON 2D MATERIALS
(Virginia Tech, 2017-09-20)Molecules adsorbed on two-dimensional (2D) materials can show interesting physical and chemical properties. This thesis presents scanning probe microscopy (SPM) investigation of emerging 2D materials, molecular nanostructures ... -
Effect of Pallet Deckboard Stiffness and Unit Load Factors on Corrugated Box Compression Strength
(Virginia Tech, 2016-03-29)Corrugated paper boxes are the predominant packaging and shipping material and account for the majority of packaging refuse by weight. Wooden pallets are equally predominant in shipping, transportation and warehousing ... -
Hydrodynamic and gasification behavior of coal and biomass fluidized beds and their mixtures
(Virginia Tech, 2016-03-29)In this study, efforts ensued to increase our knowledge of fluidization and gasification behavior of Geldart A particles using CFD. An extensive Eulerian-Eulerian numerical study was executed and simulations were compared ... -
Sharing the Shuttle with America: NASA and Public Engagement after Apollo
(Virginia Tech, 2015-03-30)Historical accounts depict NASA's interactions with American citizens beyond government agencies and aerospace firms since the 1950s and 1960s as efforts to 'sell' its human space flight initiatives and to position external ... -
Determinants of Rotavirus Polymerase Localization and Activity
(Virginia Tech, 2017-09-19)Rotavirus (RV) is a viral pathogen that causes severe, watery diarrhea and vomiting in the young of humans and other animals. RV infections result in over 200,000 pediatric deaths around the world each year, especially ... -
Optimal Design and Analysis of Bio-inspired, Curvilinearly Stiffened Composite Flexible Wings
(Virginia Tech, 2017-09-19)Large-aspect-ratio wings and composite structures both have been considered for the next-generation civil transport aircraft to achieve improved aerodynamic efficiency and to save aircraft structural weight. The use of the ... -
Factors affecting the nutritional composition and digestibility of corn for silage: Cover crops and cell wall composition
(Virginia Tech, 2017-09-15)Corn silage is one of the major components in dairy cattle rations in the United States. Many factors affect the nutritional composition of corn for silage, such as cropping system, including cover crops, and the composition ... -
The Recovery and Transfer of Aerosolized Listeria Innocua
(Virginia Tech, 2017-09-15)Airborne pathogenic bacteria can present a significant public health risk. Pathogenic Listeria monocytogenes can colonize numerous surfaces as well, through direct and indirect cross contamination. The physical environment ... -
seismic imaging and thermal modeling of active continental rifting processes in the Salton Trough, Southern California
(Virginia Tech, 2016-03-24)Continental rifting ultimately creates a deep accommodation space for sediment. When a major river flows into a late-stage rift, thick deltaic sediment can change the thermal regime and alter the mechanisms of extension ... -
Exploratory Factor Analysis: The Significance of Trust in a Revised Principal Academic Optimism Scale
(Virginia Tech, 2016-03-24)Principal Academic Optimism is an hypothesized latent construct that has strong theoretical foundations in both educational research and educational psychology. Academic Optimism derives from research on school academic ... -
Identification and Characterization of Y Chromosome and M Locus Genes in Anopheles and Aedes Mosquitoes Using the Chromosome Quotient Method
(Virginia Tech, 2016-03-22)In mosquitoes, sex determination is initiated by a dominant male-determining factor located on the Y chromosome in Anopheles mosquitoes or in a small Y-like region called the M locus in Aedes mosquitoes. Before my research, ... -
Nonlinear Dynamics and Vibration of Gear and Bearing Systems using A Finite Element/Contact Mechanics Model and A Hybrid Analytical-Computational Model
(Virginia Tech, 2017-09-11)This work investigates the dynamics and vibration in gear systems, including spur and helical gear pairs, idler gear trains, and planetary gears. The spur gear pairs are analyzed using a finite element/contact mechanics ... -
Three Essays in Applied Microeconomics
(Virginia Tech, 2017-09-11)This dissertation consists of three research papers in Applied Microeconomics. Each paper uses an econometric technique to analyze a problem related to human behavior. The first paper examines the separate effects of time ... -
Smooth Interactive Visualization
(Virginia Tech, 2017-09-08)Information visualization is a powerful tool for understanding large datasets. However, many commonly-used techniques in information visualization are not C^1 smooth, i.e. when represented as a function, they are either ... -
Geospatial Analysis to Site Urban Agriculture
(Virginia Tech, 2016-03-17)The rapid expansion of urban systems in both area and population represents the most significant landuse/landcover change occurring in the world today. Urbanization is often accompanied by increasing environmental ... -
Cross-layer Control for Adaptive Video Streaming over Wireless Access Networks
(Virginia Tech, 2016-03-17)Over the last decade, the wide deployment of wireless access technologies (e.g. WiFi, 3G, and LTE) and the remarkable growth in the volume of streaming video content have significantly altered the telecommunications field. ... -
Foliage Echoes and Sensing in Natural Environments
(Virginia Tech, 2017-09-07)Foliage is very common feature in the habitats of echolocation bats and thus its echoes constitute the major input of bats' sensory systems. Acquiring useful information from vegetation echoes facilitates the bats significantly ... -
High Precision Thermal Morphing of the Smart Anisogrid Structure for Space-Based Applications.
(Virginia Tech, 2016-10-18)To meet the requirements for the next generation of space missions, a paradigm shift is required from current structures that are static, heavy and stiff, to innovative structures that are adaptive, lightweight, versatile, ...
