Browsing PhD Dissertations - DO NOT EDIT by Title
Now showing items 152-171 of 273
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IMPROVING MULTI-RESERVOIR WATER SUPPLY SYSTEM OPERATION USING ENSEMBLE FORECASTING AND GLOBAL SENSITIVITY ANALYSIS
(2019-05-16)The objective of this research is to improve the cost-effectiveness, reliability and resilience of water supply system operation through the utilization of ensemble forecasting and optimization of the operating policies. ... -
IMPROVING OPERATIONAL HYDROLOGIC FORECASTING VIA CONDITIONAL BIAS-PENALIZED MULTI-SENSOR PRECIPITATION ESTIMATION AND MULTI-MODEL STREAMFLOW PREDICTION
(2021-05-09)Many multivariate analysis techniques involve minimizing mean square error (MSE) or error variance under unbiasedness. In the presence of observation error, variance minimization tends to introduce negative and positive ... -
Improving Post Processing of Ensemble Streamflow Forecast for Short-to-long Ranges: A Multiscale Approach
(2019-08-30)A novel multi-scale post-processor for ensemble streamflow prediction, MS-EnsPost, and a multiscale probability matching (MS-PM) technique for bias correction in streamflow simulation are developed and evaluated. The MS-PM ... -
Improving Probabilistic Quantitative Precipitation Forecasting Using Machine Learning and Statistical Postprocessing Methods
(2021-12-09)The objective of this research is to address the limitations inherent in conventional statistical postprocessing schemes to generate probabilistic quantitative precipitation forecasts (PQPFs) and improve postprocessed ... -
IMPROVING THE ANALYSIS AND PREDICTION OF COASTAL FLOODING DURING HURRICANE LANDFALLS THROUGH COUPLED AND INTEGRATED MODELING
(2022-12-19)**Please note that the full text is embargoed until 12/16/2024** ABSTRACT: As the intensity and frequency of landfalling tropical storms are likely on the rise in a warming climate, coastal communities are increasingly ... -
IMPROVING WATER QUALITY FORECASTING USING DATA ASSIMILATION
(2015-12-08)Population growth increases agricultural, industrial and human activities which threaten the quality of water resources, especially water supply sources such as lakes and reservoirs. In potentially high-impact situations ... -
In-Service Performance Evaluation of Fire and Impact Damaged Bridges with CFRP Laminate Strengthening
(2018-08-09)Fire events and impact damage on bridges are few of the least understood of common extreme events. Bridge infrastructures that are subjected to hazards such as fire or impact from over height vehicle can catastrophically ... -
Integrated Evaluation of Greenhouse Gas Emissions, Traditional Air Pollutants, and Economics of Three Types of Landfills
(2016-08-26)Despite the decreasing rate of landfilled waste due to increases in reuse and recycling, landfilling remains an enormous part of the waste industry of the United States due to population and economic growth. In addition, ... -
INTEGRATED MODELING OF STORM DRAIN AND NATURAL CHANNEL NETWORKS FOR REAL-TIME FLASH FLOOD FORECASTING AND STORMWATER PLANNING AND MANAGEMENT IN LARGE URBAN AREAS
(2017-08-09)Urban flash flooding is a serious problem in large highly populated areas such as the Dallas–Fort Worth metroplex (DFW). Being able to monitor and predict flash flooding at a high spatiotemporal resolution is critical to ... -
Integrating Environmental Contamination Perceptions of Artisanal and Small-Scale Mining into Environmental Responses across Spatial Scales
(2022-08-10)**Please note that the full text is embargoed until 8/10/2024** ABSTRACT: Artisanal and small-scale gold mining (ASGM) is of significant interest to the international research community, government officials, and ... -
Investigation Of Co-pyrolysis Between Sargassum Macroalgae And Polystyrene
(Civil & Environmental Engineering, 2012-07-25)Biomass is one source of renewable energy which helps minimize greenhouse gas (GHG) emissions, specifically carbon dioxide (CO2), since biomass utilizes CO2 via photosynthesis. Various conversion processes are applied to ... -
Investigation of models to predict the remaining useful life of prestressed concrete cylinder pipe
(2023-01-17)The water distribution system in the United States consists of 2.2 million miles of pipelines with water main breaks that the American Society of Civil Engineers (ASCE) 2021 Report Card estimated results in six billion ... -
INVESTIGATION OF STRENGTH-ENHANCEMENT MECHANISM AND SIZE EFFECT ON ULTIMATE SHEAR STRENGTH OF STEEL FIBER-REINFORCED CONCRETE (SFRC) SLENDER BEAMS
(2016-05-10)This research study consists of two separate phases. In the first phase, an experimental study was conducted to identify the shear-enhancement and failure mechanisms behind the ultimate shear strength of steel fiber-reinforced ... -
INVESTIGATION ON THE IMPACTS OF LAND SUBSIDENCE AND URBANIZATION ON FLOOD INUNDATION IN TEXAS
(2023-08-25)**Please note that the full text is embargoed until 08/01/2024** Floods, being a prevalent and catastrophic natural hazard, have resulted in enormous losses to human lives and properties all over the world. Hence, there ... -
Investigations To Develop Field Stabilization Methods To Mitigate Surficial Slope Failures
(Civil & Environmental Engineering, 2013-07-22)Surficial slope failures induced by rainfall have been studied for many years. Current research supported by The United States Army Corps of Engineers (USACE) is undertaken at the University of Texas at Arlington on two ... -
INVESTMENT VALUATION OF UNDERGROUND FREIGHT TRANSPORTATION (UFT) SYSTEMS UNDER UNCERTAINTY
(2019-08-05)A reliable, safe, and efficient freight transportation system is one of the most essential rudiments supporting the continuous economic growth of a nation. The United States (U.S.), as the world’s largest economy relies ... -
Laboratory And Field Investigations To Address Erosion, Volume Change And Desiccation Cracking Of Compost Amended Expansive Subsoils
(Civil & Environmental Engineering, 2007-08-23)Desiccations cracks are formed during drying process of fine grained cohesive soils in summer and these cracks often appear on unpaved subgrades due to direct exposure to sun. These cracks allow surface runoff infiltration ... -
Laboratory tests and numerical model of geothermally heated bridge deck with attached hydronic loop
(2020-12-17)An accumulation of ice and snow on pavement slabs and bridge decks always adversely impacts driving conditions and results in motorist accidents. The use of the more popular deicing methods, including plowing, salting, and ... -
Life Cycle Assessment Of Bio-material Stabilized Expansive Soils
(Civil & Environmental Engineering, 2008-09-17)Pavement cracking is one of the major maintenance works that requires millions of dollars in repair costs annually. Pavement cracks are formed due to moisture and temperature fluctuations in the soil. Stabilization of ... -
LIFE CYCLE ASSESSMENT OF GREENHOUSE GAS EMISSIONS, TRADITIONAL AIR POLLUTANTS, WATER DEPLETION, AND CUMULATIVE ENERGY DEMAND FROM 2-MW WIND TURBINES IN TEXAS
(2017-01-18)¶One renewable energy source that has witnessed a significant growth in the recent years is wind energy, with the installation of new wind farms around the globe as well as the innovations in wind power technology, which ...