Index Catalog // ScholarsArchive@OSU

An investigation into the role of spatial variability on liquefaction consequence severity

Creator:: Cary, John R.
Abstract:: During the Canterbury Earthquake Sequence (CES) in Christchurch, NZ, an estimated $15B in damages occurred due to liquefaction-induced phenomena, illustrating the importance of understanding site-specific responses to seismic ground motions, as well the importance of accurately predicting liquefaction severity. One potential method for improving the understanding of how a site...
Resource Type:: Masters Thesis

Changes in hyporheic exchange flow following experimental large wood removal in a second order, low gradient stream, Chichagof Island, AK

Creator:: La Nier, Justin
Abstract:: Hyporheic Exchange Flow (HEF) is driven by head gradients defined by the hydro-topography of the stream surface, which is controlled by the particular geomorphology of the stream. We quantified the impact of large wood, which typically exerts a strong control on stream morphology, on HEF in a second order, low...
Resource Type:: Masters Thesis
Full Text:: median residence times simulated by a numerical advection dispersion model, MT3D (Zheng, 1990). Eight

Influence of Concrete and Construction Parameters on Chloride Test Measurements and Critical Chloride Threshold Limits

Creator:: Vaddey, Naga Pavan
Abstract:: The issue of chloride-induced corrosion of reinforcing steel in concrete and its economic impacts are well-known. Chlorides that cause reinforcement corrosion can be from constituent materials used to prepare concrete or can enter the hardened concrete when the structure is exposed to chloride environments. To minimize the risk of reinforcement...
Resource Type:: Dissertation

Electron donor and chlorinated ethene effects on activity and community composition in anaerobic reductively dechlorinating consortia

Creator:: Sabalowsky, Andrew R.
Abstract:: This research focused on anaerobic transformation of trichloroethene (TCE), a groundwater contaminant. The mixed anaerobic Evanite culture (EV) was studied to determine community behavior and composition responses to different electron donors and chloroethene electron acceptors. The potential toxicity from high concentrations of TCE and its daughter product cis-1,2-dichloroethene (cDCE) was...
Resource Type:: Dissertation
Full Text:: (Lee et al., 2007; Yang and McCarty, 1998), pyruvate (Zheng et al., 2001), glucose (Lee et al., 2004

An evaluation of gap acceptance behavior at unsignalized intersections

Creator:: Nabaee, Sahar
Abstract:: Gap acceptance behavior is critical to the safety and operational performance of unsignalized intersections. The complex nature of the human behavior and its dependence on various socioeconomic and environmental parameters makes it challenging for transportation professionals to assess the performance of such intersections. To investigate the behavioral patterns of drivers...
Resource Type:: Masters Thesis
Full Text:: LT maneuver. Cooper and Zheng (2002) studied the gap acceptance decision using an instrumented

Use of Flashing Lights in Traffic Safety of Vulnerable Road Users

Creator:: Ahmed, Ananna
Abstract:: Vulnerable road users, anyone interacting with the roadway facility without the protection of an automobile, experience greater risk for more severe crash outcomes. Multimodal roadway facilities often times provide less separation and more points of conflict between different types of road users. To promote vulnerable road user safety, transportation agencies...
Resource Type:: Dissertation
Full Text:: awareness is an essential part of safe planning and operation of the roadway (Zheng et al., 2015

A validation of the Oregon State University driving simulator

Creator:: Brown, Lacy S.
Abstract:: Driving simulation is widely accepted as a safe, effective, and economical alternative for investigating driver behavior in a variety of contexts. However, in order to apply simulator-based research results to real-world settings, the performance measures acquired through simulated driving experiments must first be validated. This research was aimed at validating...
Resource Type:: Masters Thesis
Full Text:: Tuss, and Jianfei Zheng. You have all made my time at Oregon State more enjoyable than I ever thought

Numerical simulation of anaerobic reductive dechlorination of CAHs in continuous flow systems

Creator:: Mustafa, Nizar Ahmad
Abstract:: Halogenated organic compounds have had widespread and massive applications in industry, agriculture, and private households, for example, as degreasing solvents, flame retardants and in polymer production. They are released to the environment through both anthropogenic and natural sources. The most common chlorinated solvents present as contaminants include tetrachloroethene (PCE, perchloroethene)...
Resource Type:: Dissertation

Assessing the seismic performance of corroding RC bridge columns

Creator:: Guo, Yisen
Abstract:: Corrosion of reinforcement is recognized as the predominant factor that limits the service life of reinforced concrete (RC) structures exposed to aggressive environments. This corrosion deterioration can lead to damage resulting in capacity loss or even failure. For structures exposed to coastal marine environments or deicing or anti-icing applications, this...
Resource Type:: Masters Thesis
Full Text:: Percent change in variables P er ce nt c ha ng e in c or ro si on r at e 21 internal

Post-wildfire Investigation of Civil Infrastructure Following the 2018 Camp Fire

Creator:: Schulze, Stefanie S.
Abstract:: Wildland-urban interface (WUI) communities, where forested land boundaries or intermixes with infrastructure, are quickly growing in the US. WUI communities have grown substantially from 1990 to 2010, with an increase of 12.7 million houses and 25 million people. Wildfires encroaching on WUI communities can cause damage to both above ground...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

An investigation into the role of spatial variability on liquefaction consequence severity

Changes in hyporheic exchange flow following experimental large wood removal in a second order, low gradient stream, Chichagof Island, AK

Influence of Concrete and Construction Parameters on Chloride Test Measurements and Critical Chloride Threshold Limits

Electron donor and chlorinated ethene effects on activity and community composition in anaerobic reductively dechlorinating consortia

An evaluation of gap acceptance behavior at unsignalized intersections

Use of Flashing Lights in Traffic Safety of Vulnerable Road Users

A validation of the Oregon State University driving simulator

Numerical simulation of anaerobic reductive dechlorination of CAHs in continuous flow systems

Assessing the seismic performance of corroding RC bridge columns

Post-wildfire Investigation of Civil Infrastructure Following the 2018 Camp Fire

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