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Browsing by Department "Civil and Environmental Engineering"
Now showing items 1-20 of 182
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A Class of Tetrahedral Finite Elements for Complex Geometry and Nonlinear Mechanics: A Variational Multiscale Approach
(2019)In this work, a stabilized finite element framework is developed to simulate small and large deformation solid mechanics problems involving complex geometries and complicated constitutive models. In particular, the focus ... -
A Combined Experimental and Modeling Approach Unraveling the Mechanics Behind Drying-induced Fractures in Soils
(2023)This dissertation aims to understand the physics of geomaterial under different loading rates, employing a combination of experimental analysis and theoretical modeling. After obtaining a comprehensive understanding ... -
A Computational Framework for Fracture Modeling in Coupled Field Problems
(2018)This dissertation proposes a family of computational frameworks for fracture modeling in coupled field problems. Fracture mechanics has been a topic of considerable interest for several decades due to the wide existence ... -
A Helicopter Observation Platform for Atmospheric Boundary Layer Studies
(2009)Spatial variability of the Earth's surface has a considerable impact on the atmosphere at all scales and understanding the mechanisms involved in land-atmosphere interactions is hindered by the scarcity of appropriate ... -
A Mean Field Approach to Watershed Hydrology
(2016)Society-induced changes to the environment are altering the effectiveness of existing management strategies for sustaining natural and agricultural ecosystem productivity. At the watershed scale, natural and agro-ecosystems ... -
A New Method for Modeling Free Surface Flows and Fluid-structure Interaction with Ocean Applications
(2016)The computational modeling of ocean waves and ocean-faring devices poses numerous challenges. Among these are the need to stably and accurately represent both the fluid-fluid interface between water and air as well as the ... -
A Novel Integrated Biotrickling Filter -Anammox Bioreactor System for the Complete Treatment of Ammonia in Air with Nitrification and Denitrification
(2020)An integrated biotrickling filter (BTF)-Anammox bioreactor system was established for the complete treatment of ammonia. Shortcut nitrification process was successfully achieved in the biotrickling filter through free ammonia ... -
A Python-Based Program for Estimating Biological Surface Acidity by Using a Non-Electrostatic Adsorption Model
(2023)The objective of this research is to develop an open-source Python-based surface complexation modeling program to estimate the acidity of biological surface. Several computer software already exists with such function installed, ... -
A Study in Laterally Restrained Buckled Beams for the use in a Vertical Isolation System
(2021)Linear vibration isolation systems, used to reduce the transmissibility of vertical vibration, requires a vertical static displacement that increases with the square of the natural period of the isolation system. The static ... -
Aboveground Storage Tank Detection Using Faster R-CNN and High-Resolution Aerial Imagery
(2021)In recent years, NaTech disasters, which are defined as the technological accidents caused by natural events, have led to huge losses all over the world. To reduce these losses, assessments of the vulnerabilities of industrial ... -
ADAPTIVE LOCAL REDUCED BASIS METHOD FOR RISK-AVERSE PDE CONSTRAINED OPTIMIZATION AND INVERSE PROBLEMS
(2018)Many physical systems are modeled using partial dierential equations (PDEs) with uncertain or random inputs. For such systems, naively propagating a xed number of samples of the input probability law (or an approximation ... -
Adsorption of Pharmaceutically Active Compounds (PhACs) by Powdered Activated Carbon from Natural Water --Influence of Natural Organic Matter (NOM)
(2010)Powdered Activated Carbon (PAC) adsorption was studied in order to determine the influence of natural organic matter (NOM) on the adsorption of two acidic pharmaceutically active compounds (PhACs), clofibric acid and ketoprofen. ... -
Advanced Aerogel Composites for Oil Remediation and Recovery
(2016)Oil spills in marine environments often damage marine and coastal life if not remediated rapidly and efficiently. In spite of the strict enforcement of environmental legislations (i.e., Oil Pollution Act 1990) following ... -
Alterations of Endophytic Microbial Community Function in Spartina alterniflora as a Result of Crude Oil Exposure
(2021)The 2010 Deepwater Horizon disaster remains one of the largest oil spills in history. This event caused significant damage to coastal ecosystems, the full extent of which has yet to be fully determined. Crude oil contains ... -
America’s Evolving Relationship with Trees: A Statistical Analysis of Social, Economic, and Environmental Drivers of Forest Management
(2021)In the spirit of American individualism, the majority of the United States’ forested landscape is controlled by private landowners, who make autonomous decisions that impact a shared wealth of biodiversity and ecosystem ... -
Ammonia Gas Removal Using a Biotrickling Filter Coupled with an Anammox Reactor
(2018)Ammonia is an odorous gaseous compound emitted by a variety of industrial facilities. This study aimed to address the feasibility of ammonia gas removal using a biotrickling filter (BTF) coupled with an anammox bioreactor. ... -
An efficient finite element method for embedded interface problems
(2013)We focus on developing a computationally efficient finite element method for interface problems. Finite element methods are severely constrained in their ability to resolve interfaces. Many of these limitations stem ... -
An Extended Rouse Model of Inertial Particles Settling in Turbulent Boundary Layers
(2022)The settling of inertial particles in turbulence boundary layers plays an essential role in many meteorological, industrial and environmental processes, and is governed by multifarious mechanisms. First, turbulence alters ... -
An Investigation into the Multiscale Nature of Turbulence and its Effect on Particle Transport
(2022)We study the effect of the multiscale properties of turbulence on particle transport, specifically looking at the physical mechanisms by which different turbulent flow scales impact the settling speeds of particles in turbulent ... -
An Investigation of the Role of Land-Atmosphere Interactions on Nocturnal Convective Activity in the Southern Great Plains
(2012)This study examines whether and how land-atmosphere interactions can have an impact on the nocturnal convection over the Southern Great Plains (SGP) through numerical simulations of an intense nocturnal mesoscale convective ...
