Search
Now showing items 21-30 of 43
Quantifying the Impact of Experimental Factors on the Measurement of Dynamic Capillary Effects in Unsaturated Porous Media
(2014-12-12)
Multiphase flow is an important phenomenon in many natural and engineering systems; for example, oil recovery and water movement in the unsaturated zone are two common multiphase flow systems. The capillary pressure-saturation ...
LABORATORY DEVELOPMENT AND MOLECULAR-SCALE SIMULATION OF SENSOR-ENABLED GEOGRIDS
(2015-12-18)
Structural health monitoring (SHM) and performance assessment are increasingly integrated to modern civil engineering projects in order to prevent and mitigate their catastrophic premature failures. Significant advancements ...
Characterization of Cement-Stabilized Clay Using Experimental and Analytical Techniques
(2015-12)
Problematic soils such as soft, compressible, collapsible, or expansive soils are widespread throughout the world and are often becoming unavoidable due to the continuous expansion of societies. Soil improvement techniques ...
Resilience Assessment and Resilience-based Risk Mitigation for Community Building Portfolios
(2018)
The resilience of a community is determined by its ability to withstand and recover from disruptions due to natural or manmade hazards. While a consensus has developed in disaster-related research in recent years that ...
A Comprehensive Investigation on Microscale Properties and Macroscopic Behavior of Natural Expansive Soils
(2012)
Understanding the complicated behavior of expansive soil requires in-depth exploration of microscopic phenomena under varying situations, especially when the soil stays unsaturated and experiences swell-shrink cycles. This ...
Determination and Prediction of Products of Trace Metal Removal in Laboratory and Field Scale Vertical Flow Bioreactors
(2016-05)
Mine drainage is characterized by elevated concentrations of dissolved iron, sulfate, and trace metals and generally exhibits an acidic pH. These constituents, particularly trace metals, can pose serious risks to both ...
Assessing Impacts of Precipitation and Parameter Uncertainty on Distributed Hydrologic Modeling
(2013)
Distributed hydrologic models, based on conservation laws, simulate the flow of water over and through the land surface in response to forcing from precipitation, transpiration, and evaporation. Conservation laws provide ...
UNDERSTANDING ULTIMATE SHEAR BEHAVIOR OF PRESTRESSED CONCRETE GIRDER BRIDGES AS A SYSTEM THROUGH EXPERIMENTAL TESTING AND ANALYTICAL METHODS
(2017-07)
A prestressed concrete bridge is a complex system. The interconnectivity of several girders, a deck, and secondary elements such as diaphragms makes their behavior difficult to represent. Additionally, the shear behavior ...
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 ...