Index Catalog // ScholarsArchive@OSU

A Comparison of Formation Factor to Standard Methods to Evaluate Transport Properties

Creator:: Whatley, Samantha N.
Abstract:: Chloride-induced corrosion is one of the primary causes of the degradation of reinforced steel in concrete structures. Currently, the rapid chloride permeability test (RCPT) is the most specified method to determine the concrete’s resistivity to chloride ingress, thus a determining factor in assessing the durability of concrete. While it is...
Resource Type:: Masters Thesis
Full Text:: some of the best professors I could have asked for. Thank you, Dr Burkan Isgor, Dr David Trejo, and

A Comprehensive Mechanistic Study on Using Fine Lightweight Aggregate to Mitigate Alkali-silica Reaction

Creator:: Li, Chang
Abstract:: Previous research has shown that using fine lightweight aggregate (FLWA) can be a promising strategy to mitigate alkali-silica reaction (ASR) in mortar and concrete. While several possible theories were proposed by researchers, discrepancies in testing methods, materials, and supporting evidence still exist. Therefore, this study was initiated. There are two...
Resource Type:: Dissertation
Full Text:: friend and colleague. I appreciate all your help at the beginning of my research. David Rodriguez, you

A formal model of construction safety and health risk management

Creator:: Hallowell, Matthew R.
Abstract:: Despite recent efforts to improve site safety, construction still accounts for a disproportionate injury and illness rate. According to the 2007 injury and illness data released by the National Safety Council, the construction industry has a fatality and disabling injury rate that is approximately three times higher than the all-industry...
Resource Type:: Dissertation
Full Text:: great care in his advice. I feel that I have made a life- long friend and mentor. David Sillars

A Framework for Analyzing Debris Removal Operations Using Discrete Event Simulation

Creator:: Vijay, Akash
Abstract:: Debris generated after a disaster event must be disposed efficiently for community recovery. This is a significant operation that accounts for up to 27% of the total recovery costs. Generally, debris removal takes place in two phases: the short-term relief phase, which involves debris removal immediately after a disaster to...
Resource Type:: Masters Thesis
Full Text:: site Disaster L if el in e S er v ic es Recovery Time Normal Condition Low

A kinetic approach for the determination of sorption rate constants using a column-type reactor

Creator:: Patrier, Lionel
Abstract:: A Langmuir sorption model incorporating a second step of irreversible absorption was applied to a model soil system. The column was packed with cellulose triacetate; pulse and step input tests with 3,4-dichlorophenol were performed; the effluent concentration was measured by electron capture detector gas chromatography and sorption rate constants were...
Resource Type:: Masters Thesis
Full Text:: to thank, for their help and critical evaluation: Professor David Bella, Professor Peter Nelson

A lagrangian philosophy for plume modeling

Creator:: Frick, Walter Eugen
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Walter E. Frick for the degree of

A mathematical model for adsorptive bubble-separation processes

Creator:: T'ang, Li
Abstract:: Adsorptive bubble-separation processes are used to remove adsorptive contaminants from wastewater. A mathematical model was developed for the adsorptive bubble separation processes in a countercurrent column. The model included an assumption that linear adsorption of the solute occurred on the gas bubbles. Predictions indicated that aqueous column height has less...
Resource Type:: Dissertation
Full Text:: the removal efficiency was not significant. The surface excess of Triton-X100 (0.75 E-10 to 7.5 E-10

A method of PCB metabolite determination in anaerobic freshwater sediments using a upflow anaerobic biofiltration process (ANBIOF)

Creator:: Low, Edmond J.
Abstract:: The biodegradation of five polychlorinated biphenyls (PCBs) by Hudson River and Silver Lake sediments was studied using gas chromatography with electron capture detection (GC/ECD) and gas chromatography with mass spectrometry (GC/MS) analyses. Methanogenic sediments from the Hudson River and Silver Lake were used to inoculate four anaerobic filter reactors. The...
Resource Type:: Masters Thesis
Full Text:: (ANBIOF) 1 INTRODUCTION 1 MATERIAL AND METHODS 7 Reactor 7 Reactor Operation 9 Inocula 9 Feed Stock and

A Methodological Approach for Structural Health Monitoring of Mass-Timber Buildings Under Construction

Creator:: Baas, Esther J.
Abstract:: As mass-timber building construction rises around the globe, there exists the need to verify the long-term, in-situ behavior and performance of these structural systems. Structural health monitoring (SHM), generally defined as a damage detection strategy consisting of a network of sensors, a data acquisition system, and algorithms for data analysis,...
Resource Type:: Masters Thesis

A Multivariate Comparison of Drone-Based Structure from Motion and Drone-Based Lidar for Dense Topographic Mapping Applications

Creator:: Simpson, Chase H.
Abstract:: Unmanned aircraft systems (UAS), also known as drones, are an increasingly popular method of collecting surveying and mapping data. Two common drone-based mapping techniques are lidar and structure from motion (SfM) photogrammetry, and a frequently-heard (yet nearly impossible to answer) question is: “which is better?” The most common metric for...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Christopher E. Parrish Unmanned aircraft systems (UAS), also known as drones, are an

ScholarsArchive@OSU

A Comparison of Formation Factor to Standard Methods to Evaluate Transport Properties

A Comprehensive Mechanistic Study on Using Fine Lightweight Aggregate to Mitigate Alkali-silica Reaction

A formal model of construction safety and health risk management

A Framework for Analyzing Debris Removal Operations Using Discrete Event Simulation

A kinetic approach for the determination of sorption rate constants using a column-type reactor

A lagrangian philosophy for plume modeling

A mathematical model for adsorptive bubble-separation processes

A method of PCB metabolite determination in anaerobic freshwater sediments using a upflow anaerobic biofiltration process (ANBIOF)

A Methodological Approach for Structural Health Monitoring of Mass-Timber Buildings Under Construction

A Multivariate Comparison of Drone-Based Structure from Motion and Drone-Based Lidar for Dense Topographic Mapping Applications

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