Index Catalog // ScholarsArchive@OSU

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:: , 12 pp. 42. Snyder K. A., Feng X., Keen B. D., Mason T. O., "Estimating the electrical

Alternate Methods for the Extraction and Measurement of Pore Solution in Fresh Concrete

Creator:: Biever, Joseph
Abstract:: Knowledge of the pore solution composition and pore solution resistivity can be helpful for determining the durability of concrete structures. Most notably, pore solution resistivity can be used in the calculation of the formation factor of concrete, which is a ratio of the electrical resistivities of concrete and its pore...
Resource Type:: Honors College Thesis
Full Text:: Engineering Materials, 2019, 8(1):158-70. 15. Spragg R, Villani C, Snyder K, Bentz D, Bullard JW, Weiss J

Multi-objective Optimization of Reservoir Operation Under Uncertainty with Robust and Flexible Decision Variables

Creator:: Hosseini, Parnian
Abstract:: Optimization of reservoir operation is involves various competing objectives for a scarce resource (water). To find the optimal operation of reservoirs, it is essential to consider multiple objectives simultaneously. There are various sources of uncertainty associated with the reservoir operation problem that should be considered as well. The overarching goal...
Resource Type:: Dissertation
Full Text:: bounds for first decision variable for all the Pareto solutions; and D) Flexible bounds for second

Measurement of the rates of reductive dechlorination of chlorinated phenols

Creator:: Nicholson, David K.
Abstract:: Knowledge of a compound's degradation pathway is crucial to the assessment of risk at contaminated sites. Pentachlorophenol and its metabolic products can serve as model compounds to study the fate and transport of halogenated aromatic compounds in the environment. Acclimation of anaerobic sewage sludge to pentachlorophenol produced a microbial consortium...
Resource Type:: Masters Thesis
Full Text:: chlorinated phenols AN ABSTRACT OF THE THESIS OF David K. Nicholson for the degree of Master of Science in

Regional and Site-Specific Vulnerabilities of the Western Power Grid from a M9.3 Cascadia Subduction Zone Earthquake

Creator:: Lathrop Eve D.
Abstract:: The likelihood of a Cascadia Subduction Zone (CSZ) earthquake is estimated between 37 to 42% in the next 50 years, leading to strong shaking, liquefaction, landsliding, and other seismic ground failure resulting in major impacts to critical lifelines such as the western power grid. Electrical power is essential for continued...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Eve D. Lathrop for the degree

Three dimensional dynamic video position sensing

Creator:: Jansky, L. Andrew
Abstract:: A comprehensive system to locate and track objects in two or three dimensional space, using non-contact video sensing techniques is described. The need exists to be able to quantify range and proximity of objects that would be difficult or impossible to measure using standard contact based sensor technology. Available video...
Resource Type:: Masters Thesis
Full Text:: : Charles K. Sollitt A comprehensive system to locate and track objects in two or three dimensional space

Prediction of low temperature cracking of asphalt concrete mixtures with thermal stress restrained specimen test results

Creator:: Kanerva, Hannele K.
Abstract:: Low temperature cracking is attributed to tensile stresses induced in an asphalt concrete pavement that develop when the pavement is subjected to a cold temperature. Cracking results in poor ride quality and a reduction in service life of the pavement. Low temperature cracking has been predicted by regression equations, mechanistic...
Resource Type:: Dissertation
Full Text:: mixtures with thermal stress restrained specimen test results AN ABSTRACT OF THE THESIS OF Hannele K

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
Full Text:: Roughness and Geometry Effects of Engineered Log Jams on 1-D

3-D finite element modeling in OpenSees for bridge live-load girder distribution factors

Creator:: Scoggins, Luke A.
Abstract:: A generalized, three-dimensional, finite element bridge model was created in order to efficiently and accurately assess live-load girder distribution factors for a variety of bridge types. This model shortens the time required by bridge analysts to develop individual finite element models for bridges of varying geometries. The creation of the...
Resource Type:: Masters Thesis
Full Text:: 22, 2007. Title: 3-D Finite Element Modeling in OpenSees for Bridge Live-Load Girder Distribution

An eigenvalue wave analysis of a fixed semi-immersed rectangular structure

Creator:: Steimer, Robert Bruce
Abstract:: The problem of a fixed rectangular structure of unit width in a train of simple harmonic normally-incident waves is modeled. The solution allows for variable (1) length and draft of structure, (2) differing depths in the three (fore, aft, and beneath the structure) distinct regions, and (3) wave period. The...
Resource Type:: Masters Thesis
Full Text:: for the case of z with k<0. Therefore, the solution is X = D exp(iKx) + E exp(-iKx) where D and E

ScholarsArchive@OSU

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

Alternate Methods for the Extraction and Measurement of Pore Solution in Fresh Concrete

Multi-objective Optimization of Reservoir Operation Under Uncertainty with Robust and Flexible Decision Variables

Measurement of the rates of reductive dechlorination of chlorinated phenols

Regional and Site-Specific Vulnerabilities of the Western Power Grid from a M9.3 Cascadia Subduction Zone Earthquake

Three dimensional dynamic video position sensing

Prediction of low temperature cracking of asphalt concrete mixtures with thermal stress restrained specimen test results

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

3-D finite element modeling in OpenSees for bridge live-load girder distribution factors

An eigenvalue wave analysis of a fixed semi-immersed rectangular structure

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