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Filtering by: Creator Dempster, L. J. Remove constraint Creator: Dempster, L. J. Academic Affiliation Civil and Construction Engineering Remove constraint Academic Affiliation: Civil and Construction Engineering Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • GOSEP: Georeferenced Oregon Soil Engineering Properties

    Creator:
    Dutille, Victoria L.
    Abstract:
    Geotechnical engineers design and analyze the interface between the natural and built environments, often based on uncertain and inherently variable data due to the nature of the building material, soil. Engineers must estimate the subsurface conditions at a site using historical, in-situ, and laboratory testing data. However, only discrete representative...
    Resource Type:
    Capstone Project

  • An Efficient Workflow and Accuracy Assessment for ICESat-2 and Multispectral Imagery Fusion for Bathymetric Mapping

    Creator:
    Babbel, Benjamin J.
    Abstract:
    Interest in mapping bathymetry from multispectral satellite imagery has grown steadily since the 1970s. Notwithstanding the significant advancements made during this time, one limitation is that the group of algorithms collectively referred to as Satellite Derived Bathymetry (SDB) generally require “seed depths,” hindering their use for areas lacking reliable reference...
    Resource Type:
    Masters Thesis
    Full Text:
    Benjamin J. Babbel for the degree of Master of Science in Civil Engineering presented on May 27, 2020

  • Of Planes and Plumblines: Map Projections and Differential Leveling in a GNSS-based 3D Geodetic Framework

    Creator:
    Dennis, Michael L.
    Abstract:
    Modern geospatial data are frequently represented in some type of three-dimensional (3D) coordinate system, for example geodetic latitude, longitude, and ellipsoid height (φ, λ, h) derived from Global Navigation Satellite Systems (GNSS). But for engineering and surveying work, φ, λ, h coordinates are usually converted to a topocentric system consisting...
    Resource Type:
    Dissertation
    Full Text:
    . ......... 102 Table 4.2. Scalars (sΔL) used for computing a priori standard deviations of leveling

  • 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:
    , 2005, M. J. Walkden & Hall, 2011) provide quantitative predictions of natural and human induced

  • The Effects of Temperature on Electrical Resistivity Measurements of Concrete

    Creator:
    Coyle, Alex T.
    Abstract:
    Measuring resistivity as a method to calculate formation factor is becoming a popular way to evaluate transport properties of concrete. Resistivity measurements are dependent on multiple factors including the resistivity of the pore solution, leaching effects, the degree of saturation of the specimen, the age of the specimen (degree of...
    Resource Type:
    Masters Thesis
    Full Text:
    K Potassium Chemical KOH Potassium hydroxide Chemical L Liter L mi Initial mass of specimen g

  • Numerical assessment of steel plate shear wall with coupling (SPSW-WC) system design procedure

    Creator:
    Li, Wennan
    Abstract:
    The Steel Plate Shear Wall (SPSW) system, is an innovative seismic lateral force resistant system, which has experienced increased use over the last three decades. The SPSW system is composed of boundary elements which anchor web plates that develop diagonal tension fields. A number of SPSW buildings have been built...
    Resource Type:
    Masters Thesis
    Full Text:
    ultimate shear capacity were, ns∑ j=i Vj = 1 2 · Fy · ti · L · sin2α + 4 ·Mpci hsi (2.9) where Vj

  • Analysis of spatial data from terrain models for landslide predictive mapping

    Creator:
    Santha, Rubini
    Abstract:
    Landslides are a pervasive hazard that can result in substantial damage to properties and loss of life throughout the world. To understand the nature and scope of the hazard, landslide hazard mapping has been an area of intense research by identifying areas most susceptible to landslides in order to mitigate...
    Resource Type:
    Dissertation
    Full Text:
    Michael J. Olsen Landslides are a pervasive hazard that can result in substantial damage to properties

  • Implementing High Dynamic Range (HDR) Photography to Improve 3D Laser Scanning Point Cloud Visualization and Segmentation

    Creator:
    Mahmoudabadi, Hamid
    Abstract:
    This research explores several novel approaches to improve visualization and segmentation of point clouds acquired with 3D laser scanning. 3D laser scanning is used in a wide variety of applications including surveying and mapping, transportation asset management, facilities management, building information modeling, crime scene investigations, cultural heritage and geologic instigations....
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Michael J. Olsen This research explores several novel approaches to improve

  • Accuracy Evaluation of Real-Time GNSS Survey Observations

    Creator:
    Allahyari, Mahsa
    Abstract:
    Real time networks (RTNs) have become popular for Global Navigation Satellite System (GNSS) surveys because highly accurate positions can be derived in seconds to minutes compared to hours as required with static sessions. To evaluate the accuracy of these shorter-duration, RTN GNSS observations and their potential for use as a...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Michael J. Olsen Real time networks (RTNs) have become popular for Global Navigation

  • Rigorous 3D Point Cloud Quality Assessment

    Creator:
    O'Banion, Matthew S.
    Abstract:
    The capabilities of modern three-dimensional (3D) capture technology such as laser scanning and image-based 3D reconstruction are well suited to enhance the practice and research of civil engineering. However, given the often-overwhelming focus placed on the incredible capabilities of these tools and techniques, it is important to investigate the limitations...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Michael J. Olsen The capabilities of modern three-dimensional (3D) capture