Index Catalog // ScholarsArchive@OSU

Modeling of Non-Spherical Particle Dynamics in a Non-Uniform Flow

Creator:: Alshehri, Ahmad S.
Abstract:: Turbulent flow with suspended, non-spherical particles can be found in nature and several industrial applications. Although turbulence with dispersed spherical particles has been studied extensively, modeling the dynamics of non-spherical particles in a turbulent flow has not been studied extensively. Motion of spherical particles in complex flows is typically captured...
Resource Type:: Masters Thesis
Full Text:: master’s thesis committee: Dr. Deborah Pence, Dr. James Liburdy, and Dr. Jonathan Istok. I would like to

Measuring and Correcting the Electrical Resistivity of Concrete Pore Solution in Fresh Mixtures

Creator:: Biever, Joseph H.
Abstract:: A vital aspect of concrete construction is quality assurance and control (QA/QC). Engineered structures must meet pre-determined and agreed-upon strength and durability requirements. Concrete falls into a specific category of infrastructure material because in most cases, these strength and durability requirements cannot be found until the material has at least...
Resource Type:: Masters Thesis
Full Text:: my committee members Dr. Istok and Dr. O Neill for taking the time to review my thesis and be a

Evaluation in a Physical Aquifer Model the Long-Term Performance of a Permeable Reactive Bio-Barrier Packed with Co-encapsulated Gellan Gum Beads for the Bioremediation of Chlorinated Compounds and Co-Contaminants

Creator:: Wortkoetter, Jacob
Abstract:: Chlorinated solvents are a class of widespread groundwater contaminants that are toxic, carcinogenic, and difficult to remediate at low concentrations. 1,4-dioxane, a suspected carcinogen, is often a co-contaminant found in mixtures of chlorinated solvent plumes. In-situ bioremediation methods of degrading these chemicals through aerobic cometabolism have shown promise. Permeable Reactive...
Resource Type:: Masters Thesis
Full Text:: . Jonathan Istok, for their time and helpful critique of my thesis. In the Semprini group, I’d like to

Aerobic Cometabolism of 1,4-Dioxane and cis-Dichloroethylene by Gellan Gum and Polyvinyl Alcohol/Sodium Alginate Hydrogel Beads Co-Encapsulated with Rhodococcus rhodochrous Strain ATCC 21198 and Slow-Release Growth Substrates: Batch, Column, and Toxicity Studies

Creator:: Conway, Sean P.
Abstract:: 1,4-Dioxane (dioxane) and cis-dichloroethylene (cDCE) are compounds commonly found in industrial cleaning and degreasing agents that are frequently present as groundwater contaminants. In an effort to develop a more effective treatment method for these compounds, hydrogel beads were fabricated with either gellan gum or a combination of polyvinyl alcohol (PVA)...
Resource Type:: Masters Thesis

Examination of Photochemical Water Treatment by SolarBags

Creator:: White, Robert E.
Abstract:: Inadequate access to clean water is an ongoing problem in many developing areas of the world. In developed nations, it is important to plan for access to clean water following natural disasters. In situations without reliable access to electricity and chemical treatment methods, there is a need for an inexpensive...
Resource Type:: Masters Thesis
Full Text:: -Daneshmand, as well as Dr. Jonathan Istok for serving as my Graduate Council Representative. I would also

Practical Application of the Finite Element Method for Vehicle System Loads Analysis

Creator:: Weitzman, Paul M.
Abstract:: This work develops the loads, boundary conditions, and model construction techniques used to create a high-level vehicle analysis model. The loads are derived from the overall performance parameters of the vehicle, which include 3 axis accelerations and aerodynamic forces from Computational Fluid Dynamics outputs. The boundary condition of the analysis...
Resource Type:: Masters Thesis

Wave-by-wave Forecasting of Sea Surface Elevation for WEC Applications Utilizing NARX Neural Networks

Creator:: Gillespie, Alice
Abstract:: Forecasting of ocean waves over a short duration on the order of tens of seconds was approached with the optimization of wave energy conversion in mind. This study outlines the development of an artificial neural network model, specifically the Nonlinear Autoregressive Network with Exogenous Input (NARX), to predict a wave-by-wave...
Resource Type:: Masters Thesis
Full Text:: like to extend a round of thanks to committee members Dr. Istok, Dr. Batten, and Dr. Sharp for

Visualization and characterization of biofilm spatial distribution in porous media using x-ray computed microtomography

Creator:: Iltis, Gabriel C.
Abstract:: This work focuses primarily the development of methods for imaging microbial biofilms in opaque porous media using x-ray computed microtomography (CT). Two methods for evaluating biofilms in porous media are presented. The first focuses on the addition of silver-coated, hollow glass microspheres to a biofilm-containing micro-model. The silver-coated microspheres affix...
Resource Type:: Dissertation

Roughness and geometry effects of engineered log jams on 1-D flow characteristics

Creator:: Valverde, Rachelle S.
Abstract:: The re-introduction of large woody debris (LWD) into streams and rivers for stream restoration purposes is rapidly growing. Engineered log jams (ELJs) are man-made structures intended to mimic natural LWD structures, designed and installed to protect stream banks from erosion while increasing habitat diversity. Several studies have evaluated the flow...
Resource Type:: Masters Thesis

Hydraulic influences on pool morphology : a laboratory investigation

Creator:: Frizenschaf, Jacqueline
Abstract:: A flume study was conducted to investigate the influences of changing hydraulic conditions on the bed morphology of a scoured pool. During a simulated storm runoff event, responses of the pool were tested under different conditions: clearwater flow, sediment supply at steady rates, and two different sediment mixtures of the...
Resource Type:: Masters Thesis
Full Text:: examination committee members Dr. Robert L. Beschta and Dr. Jonathan D. Istok, who both helped me to further

ScholarsArchive@OSU

Modeling of Non-Spherical Particle Dynamics in a Non-Uniform Flow

Measuring and Correcting the Electrical Resistivity of Concrete Pore Solution in Fresh Mixtures

Evaluation in a Physical Aquifer Model the Long-Term Performance of a Permeable Reactive Bio-Barrier Packed with Co-encapsulated Gellan Gum Beads for the Bioremediation of Chlorinated Compounds and Co-Contaminants

Aerobic Cometabolism of 1,4-Dioxane and cis-Dichloroethylene by Gellan Gum and Polyvinyl Alcohol/Sodium Alginate Hydrogel Beads Co-Encapsulated with Rhodococcus rhodochrous Strain ATCC 21198 and Slow-Release Growth Substrates: Batch, Column, and Toxicity Studies

Examination of Photochemical Water Treatment by SolarBags

Practical Application of the Finite Element Method for Vehicle System Loads Analysis

Wave-by-wave Forecasting of Sea Surface Elevation for WEC Applications Utilizing NARX Neural Networks

Visualization and characterization of biofilm spatial distribution in porous media using x-ray computed microtomography

Roughness and geometry effects of engineered log jams on 1-D flow characteristics

Hydraulic influences on pool morphology : a laboratory investigation

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