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Filtering by: Creator Herlocker, Jonathan L. Remove constraint Creator: Herlocker, Jonathan L. Academic Affiliation Civil and Construction Engineering Remove constraint Academic Affiliation: Civil and Construction Engineering Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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Shear strengthening reinforced concrete bridge girders using near-surface mounted titanium alloy bars

Creator:

Knudtsen, Jonathan

Abstract:

Aging and deficient infrastructure has become a major problem throughout the world. This is particularly evident in the case of reinforced concrete (RC) bridges. The cost of replacing these bridges is often prohibitive, thus engineers must find ways to strengthen them. Many older RC bridges predate the modern understanding of...

Resource Type:

Masters Thesis

Full Text:

AN ABSTRACT OF THE THESIS OF Jonathan Knudtsen for
Are watershed management plans selected and preferred by stakeholders considering current climate conditions robust against climate change scenarios? A sensitivity study of stakeholders spatially-explicit preferences

Creator:

Cannady-Shultz, Kenneth R.

Abstract:

In the light of the changing climate, the importance of designing effective watershed management plans that are likely to be implemented is becoming ever more important. This research introduces a new concept, consensus, for incorporation into stakeholder-guided interactive optimization of watershed management plans. User preferences were mathematically simulated based upon...

Resource Type:

Masters Thesis
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:

engineering, Vol. 2017. 2017, pp. 1-30. 10. Zongjin L., Wei X., Li W., "Preliminary Interpretation of
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:

agreement. The coefficient of efficiency CE and the goodness-of-fit index F(l) are two metrics also
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
Estimating the in situ Stratification via Remotely-sensed Internal Wave Speeds

Creator:

Fang, Chufan

Abstract:

This work investigates a methodology for estimating the ocean stratification gradient based on high-resolution, in space and time, remote sensing observations of internal wave propagation speeds. The internal wave speed observations were collected using a shore-based, X-band marine radar and the ocean vertical density profiles were collected simultaneously from an...

Resource Type:

Masters Thesis

Full Text:

Wengrove, Dr. James Lerczak and Dr. Jonathan Nash. I have been working in the research group for more than
Evaluation of Low-Impact Development (LID) Treatment Train at OSU-Benton County Green Infrastructure Facility

Creator:

Saduova, Alisha

Abstract:

Urban stormwater runoff with a high impervious area can significantly impact pollution concentrations of receiving water bodies. The use of low impact development (LID), which mimics the hydrological properties of the site before development, has been studied in an increasing number of studies, and the available database has shown to...

Resource Type:

Masters Thesis

Full Text:

/L Orthophospahte 0.05 mg/L Total Phosphorus 0.05 mg/L Total Kjeldahl Nitrogen 0.1 mg/L
Remote Sensing Tools for Evaluating Climate Change Impacts in Coastal Environments

Creator:

Herrmann, Joan F.

Abstract:

Climate change has pervasive impacts on Earth’s diverse ecosystems. Observed and projected effects that impact coastal environments pose unique challenges. Coastal regions provide numerous ecosystem services (e.g., fisheries, nursery habitats, erosion control, and water filtering and detoxification), house 40% of the US population, and contribute to 58% of the national...

Resource Type:

Masters Thesis

Full Text:

Geographic Information Systems (GIS) related content. Lastly, Jonathan Allan from Oregon Department of
Adjacent structure response sensitivity to seismic events using the direct differentiation method

Creator:

White, William S.

Abstract:

The response of adjacent structural systems to earthquake motions is investigated using the finite element framework OpenSees. Results of sensitivity analyses demonstrate that structural response quantities can increase in either or both of the adjacent structures for specific configurations. The structural models used include steel moment-resisting frames and rigid shear...

Resource Type:

Masters Thesis
Unmanned aircraft systems for bridge inspection : testing and developing end-to-end operational workflow

Creator:

Gillins, Matthew N.

Abstract:

Bridge inspections are vital for monitoring the health and serviceability of transportation infrastructure throughout the world. However, inspections can be logistically-challenging, expensive, and dangerous. For example, inspections may require climbing, as well as the use of scaffolding, ladders, rescue boats, bucket trucks, and/or under-bridge inspection vehicles. Small, multirotor unmanned aircraft...

Resource Type:

Masters Thesis

Full Text:

Oregon State University, Farid Javadnedjad, Chase Simpson, and Jonathan Burnett for their assistance in

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Academic Affiliation

Civil and Construction Engineering[remove]25
Wood Science and Engineering1

Advisor

Leshchinsky, Ben A.3
Babbar Sebens, Meghna2
Higgins, Christopher C.2
Wengrove, Meagan E.2
Arocho, Ingrid1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2012 to 2024

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Committee Member

Istok, Jonathan D.3
Lerczak, James3
Arras, Tracy L.2
Isgor, Burkan2
Istok, Jonathan2
more Committee Members »

Creator

Alotaibi, Abdulaziz M.1
Ambauen, Spencer J.1
Anderson, Dylan1
Biever, Joseph H.1
Cannady Shultz, Kenneth R.1
more Creators »

Contributor

Arocho, Ingrid1
Haller, Merrick C.1
Lerczak, James1
Lindell, Michael1
Lomonaco, Pedro1
more Contributors »

Date

Date range begin – Date range end

Current results range from 2012 to 2023

View distribution

Decade

2020-202911
2010-201914

Degree Field

Civil Engineering25
Water Resources Engineering1
Wood Science1

Degree Level

Master's25

Degree Name

Master of Science (M.S.)[remove]25

Funding Body

National Science Foundation Grant CMMI-20379141

Language

English [eng]25

License

All rights reserved25

Non-Academic Affiliation

Oregon State University. Graduate School11
Pacific Marine Energy Center1

Peer Reviewed

No25

Resource Type

Masters Thesis25

Rights Statement

In Copyright24
In Copyright - Educational Use Permitted1

Subject

Concrete bridges -- Maintenance and repair2
Titanium alloys2
Aggregates (Building materials)1
Bridges -- Abutments -- Dynamic testing1
Bridges -- Earthquake effects1
more Subjects »

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