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Now showing items 31-40 of 49
Iron Transport and Removal Dynamics in the Oxidative Units of a Passive Treatment System
(2016-12)
Abstract
Mine drainage is threat to water systems in legacy mining districts as elevated concentrations of dissolved iron, sulfate, and trace metals have an unmitigated impact on water quality. Changes in pH due to ...
DEVELOPMENT AND EVALUATION OF AN ADVANCED REGIONAL AND GLOBAL HYDROLOGICAL PREDICTION SYSTEM ENABLED BY SATELLITE REMOTE SENSING, NUMERICAL WEATHER FORECASTING, AND ENSEMBLE DATA ASSIMILATION
(2013-12)
This dissertation advanced the traditional hydrological prediction via multi-sensor satellite remote sensing products, numerical weather forecasts and advanced data assimilation approach in sparsely gauged or even ungauged ...
MECHANISTIC INPUT PARAMETERS AND MODEL CALIBRATION FOR DESIGN AND PERFORMANCE EVALUATION OF FLEXIBLE PAVEMENTS IN OKLAHOMA
(2017-12)
The Mechanistic-Empirical Pavement Design Guide (MEPDG) – a product of research and experience involving more than 20 years of traffic, climate and materials data from different regions in the U.S. – has elevated pavement ...
Design and Assessment of Innovative Dual-Mode Rolling Isolation Systems
(2019-08)
Loss of operation or devastating damage to buildings and industrial structures, as well as equipment housed in them, has been observed due to earthquake-induced vibrations. A common source of operational downtime is due ...
In Situ Testing and its Application to Foundation Analysis in Fine-Grained Unsaturated Soils
(2016-12-16)
The in situ test is an important part of a geotechnical engineer’s arsenal. Currently, there are no established methods for interpreting results of in situ tests in unsaturated soils. The difficulty in interpreting in situ ...
Characterization and Prediction of Flash Flood Severity
(2017-05)
Flash floods, a subset of floods, are a particularly damaging natural hazard worldwide due to their multidisciplinary nature, difficulty in forecasting, and fast response that limits emergency responses. The purpose of ...
Development of Soil-Pile Interaction Models in Improved Soils Using Centrifuge Test Data and System Identification Methods
(2016-05-13)
Documented distresses in pile foundations in soft soils during past earthquakes have shown that piles founded in soft soils undergo large lateral deformations during seismic loading. Improving the soil surrounding the piles ...
DIMENSIONAL STABILITY OF CONCRETE SLABS ON GRADE
(2011)
Drying shrinkage is one of the major causes of cracking in concrete slabs on grade. The moisture difference between the top and bottom surface of the slabs causes a dimensional or "shrinkage" gradient to develop through ...
The Effects of Evaporation and Capillary Forces on Fluid Motion, Solute Transport, and Water Content From the Grain Scale to the Continuum Scale in Unsaturated Porous Media
(2019)
This work aimed to explore how fluid motion, solute transport, and water content are influenced by evaporation and capillary forces in unsaturated porous media, across a range of scales. Experiments were conducted from the ...
APPLICATION OF ECOSYSTEM ENERGETIC INDICATORS FOR THE VALUATION OF ECOSYSTEM SERVICES AND HEALTH
(2014)
Ecosystems services are benefits that humans receive from ecosystem functions. Ecosystem health is a term that is commonly used in the literature to describe the state of an ecosystem. Ecologists and economists have stated ...