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Full-Text Articles in Engineering
Chemical Flux During Event Stormwater Flows In The Great Smoky Mountains National Park: Comparison Of Two Streams Varying By Drainage Area And Elevation, Matthew Williams Aplin
Chemical Flux During Event Stormwater Flows In The Great Smoky Mountains National Park: Comparison Of Two Streams Varying By Drainage Area And Elevation, Matthew Williams Aplin
Masters Theses
Streams in the Great Smoky Mountains National Park in North Carolina and Tennessee have been impacted by acid deposition from anthropogenic sources for decades. Recent declines in acid deposition throughout the eastern U.S. appear to be initiating improvements in stream water quality. However, watershed recovery could take decades due to regional differences in the hydrologic and biogeochemical processes that influence chemical fate and transport. These processes have been extensively studied at longer time scales (i.e. seasonally, annually), by long-term annual ion budgets, and study designs based on grab samples. Less known are the acidification effects on streams through rapid ion …
An Integral Framework For Sustainable Building Design, Bushra Asfari
An Integral Framework For Sustainable Building Design, Bushra Asfari
Masters Theses
Selection of materials for building design is a delicate process hinged of a number of factors which can be cost or environmental related, depending on the objectives of the design. This process becomes more difficult when designers are faced with several material options for each building component. This thesis presents the design and development of a framework that enables designers understand the trade-off between cost and environmental related factors when selecting materials for building design. The framework is based on the integration of Autodesk Revit, Microsoft access, and modeling modified Harmony search multi-objective optimization tool adapted to account for material …
A Hydrological Analysis Of Switchgrass Land Cover In East Tennessee, Jordan Avery Hayes
A Hydrological Analysis Of Switchgrass Land Cover In East Tennessee, Jordan Avery Hayes
Masters Theses
Energy needs and the recent installation of a cellulosic biofuel plant in Vonore, TN have created a demand for switchgrass in East Tennessee. Switchgrass has many strengths such as erosion protection, nutrient removal, and runoff mitigation. The Soil and Water Assessment Tool (SWAT) was selected to model the impact of transitioning traditional crops into switchgrass land cover. Field data was needed to properly calibrate the SWAT model for East Tennessee. The National Resources Conservation Service (NRCS) curve number (CN) was needed for runoff calibrations. This value was determined by both standard NRCS methods as well as an asymptotic method. The …
Long-Term Evaluation Of Norris Reservoir Operation Under Climate Change, Joseph Patton Rungee Ii
Long-Term Evaluation Of Norris Reservoir Operation Under Climate Change, Joseph Patton Rungee Ii
Masters Theses
This study aimed to address the potential long-term effects of future climate change on the Tennessee Valley Authority’s (TVA’s) operation policy for Norris Reservoir. The Community Earth System Model 1.0 (CESM1.0), a general circulation model (GCM) accessible through the Intergovernmental Panel on Climate Change’s (IPCC’s) Coupled Model Intercomparison Project Phase 5 (CMIP5), with the Representative Concentration Pathway 4.5 (RCP4.5) was used to obtain projected precipitation and temperature data for three future climate scenarios, 2030’s, 2050’s, and 2070’s. Three hydrologic models were individually calibrated on 30 years of observed runoff data and combined utilizing linear programming to consider the strengths of …