Index Catalog // ScholarsArchive@OSU

Effect of carbon adsorption on chlorine requirement of treated effluent

Creator:: Chang, Chʻing-lin
Resource Type:: Masters Thesis
Full Text:: . [ H +] [ 0C1 ]_ 8 10 2. 7 X at 25° C (4) i [ HOC1] The distribution of HOC1 and 0C1 depends on pH

Local scour at isolated obstacles on river beds

Creator:: Huang, Cheng-Chang
Abstract:: Maximum equilibrium scour depths, equilibrium scour volumes, and induced equilibrium movements at isolated obstacles on river beds were investigated in clear-water scour. The research was achieved by a systematic flume study based on the results of dimensional analysis of local scour. The main tested obstacles for local scour were cubes....
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE THESIS OF Cheng-Chang Huang for the degree of Doctor of Philosophy in Civil Engineering

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:: composition of the infilling reaction product was found to be close to C-A-S- H, rather than ASR gel. The Ca

Cometabolic degradation of polycyclic aromatic hydrocarbons (PAHs) and aromatic ethers by phenol- and ammonia-oxidizing bacteria

Creator:: Chang, Soon Woong
Abstract:: Cometabolic biodegradation processes are potentially useful for the bioremediation of hazardous waste sites. In this study the potential application of phenol-oxidizing and nitrifying bacteria as "priming biocatalysts" was examined in the degradation of polycyclic aromatic hydrocarbons (PAHs), aryl ethers, and aromatic ethers. We observed that a phenol-oxidizing Pseudomonas strain cometabolically...
Resource Type:: Dissertation
Full Text:: development of a rapid colorimetric assay to detect AMO activity. C Copyright by Soon Woong Chang

The Evaluation of Cementitious Pore Solution Composition and Electrical Resistivity Using X-ray Fluorescence (XRF)

Creator:: Tsui Chang, Marisol
Abstract:: Interest in performance specifications has been growing in the civil and construction industry in the past decade. One major focus area has been on understanding how to prolong the service life of concrete structures, since repair and rehabilitation of existing infrastructure have cost many trillions of dollars. Deterioration mechanisms such...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Marisol Tsui Chang for the degree of Master of Science in Civil Engineering

Evaluation of selected marginal aggregates stabilized with cement

Creator:: Chang, Chen
Abstract:: Coastal Oregon is deficient in quality construction aggregate. There is, however, an abundance of lower quality, or marginal aggregate available for construction purposes. The purpose of this report is to develop techniques for upgrading marginal aggregates with portland cement and methods for evaluating the relative performance of these stabilized materials...
Resource Type:: Masters Thesis
Full Text:: with cement AN ABSTRACT OF THE THESIS OF Chen Chang for the degree of Master of Science in Civil

Experimental and analytical investigation of ponding load effects on a steel joist roof system

Creator:: Stark, Duncan
Abstract:: Ponding of water on roof systems leading to collapse causes expensive damage and jeopardizes the life safety of building occupants. Current building codes and design specifications for flat roof systems offer minimal guidance in designing for ponding loads. The present research investigated ponding load effects on a long span, lightweight...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________________________ Christopher C. Higgins Ponding of water on roof systems leading to collapse causes

Aseismic performance of a cable-stayed structure with decentralized H[infinity] control

Creator:: Chńg, Guan B.
Abstract:: The dissertation uses state-of-the-art structural engineering theories, in parallel with the modern and still-developing control theory of electrical engineering to mitigate the vibratory responses of a double-stayed bridge subjected to strong earthquake ground motions. First, a nonlinear finite element model of the double-stayed bridge subjected to non-uniform (multi-support) earthquake excitations...
Resource Type:: Dissertation
Full Text:: . Miller, Dr. Solomon C. S. Yim, Dr. Molly H. Shor, and Dr. Donald C. Solmon, for their interest and

Preliminary Assessment of Driver Parking Decisions From A Heavy Vehicle Driving Simulator To Inform Curb Management Decisions

Creator:: Liu, Yujun
Abstract:: As e-commerce and urban deliveries spike, there is an increasing demand for curbside loading/unloading space. However, commercial vehicle drivers face numerous challenges while navigating dense urban road networks. Previous literature on the topic of how commercial vehicle drivers make choices about when and where to park is scarce, and data...
Resource Type:: Masters Thesis
Full Text:: . Chih-Hung Chang. Thanks for your time and effort put into this project and for attending my defense

Field verification of a mathematical model for the physical fate prediction of dredged material instantaneously disposed at sea

Creator:: Hollings, William H.
Abstract:: Dredged spoil plumes are monitored during nine hopper dredge disposal events in 186 foot water depths offshore near Coos Bay, Oregon. Position and solids volume concentration characteristics of the plumes are established. Computer simulations of the monitored events are executed using the WES modified version of the Koh-Chang instantaneous disposal...
Resource Type:: Masters Thesis
Full Text:: William H. Hollings III for the degree of Master of Science in Civil Engineering presented on September 1

ScholarsArchive@OSU

Effect of carbon adsorption on chlorine requirement of treated effluent

Local scour at isolated obstacles on river beds

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

Cometabolic degradation of polycyclic aromatic hydrocarbons (PAHs) and aromatic ethers by phenol- and ammonia-oxidizing bacteria

The Evaluation of Cementitious Pore Solution Composition and Electrical Resistivity Using X-ray Fluorescence (XRF)

Evaluation of selected marginal aggregates stabilized with cement

Experimental and analytical investigation of ponding load effects on a steel joist roof system

Aseismic performance of a cable-stayed structure with decentralized H[infinity] control

Preliminary Assessment of Driver Parking Decisions From A Heavy Vehicle Driving Simulator To Inform Curb Management Decisions

Field verification of a mathematical model for the physical fate prediction of dredged material instantaneously disposed at sea

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