Search Constraints

Start Over
Filtering by: Creator Brereton, Andrew E. Remove constraint Creator: Brereton, Andrew E. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

Search Results

  • 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:
    DISSERTATION OF Andrew R. Sabalowsky for the degree of Doctor of Philosophy in Civil Engineering

  • Quantification of advection and dispersion in lateral subsurface flowpaths at the hillslope-scale

    Creator:
    Victory, Nichole I.
    Abstract:
    It is becoming increasingly important to understand fundamental hillslope-scale hydrological processes. Most hillslope-sale transport experiments have generally focused on conceptual findings or other aspect of flow behavior, rather than the quantification of the mass transport mechanisms of advection and dispersion. When the velocities have been quantified, dispersion has been mentioned...
    Resource Type:
    Masters Thesis
    Full Text:
    180 240 Q tr e n ch ( L / h r) Tracer-free water injection Tracer injection [Br-] Q

  • An Experimental and Numerical Investigation of Tall Mechanically Stabilized Earth Walls

    Creator:
    Strahler, Andrew W.
    Abstract:
    The implementation and construction of Mechanically Stabilized Earth (MSE) walls has undergone substantial expansions in recent years, owing to its relatively low cost, ease of construction, and high efficiency compared to conventional retaining methods. As a result, MSE walls are being constructed to greater heights with complex features (e.g. multiple...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Andrew W. Strahler

  • A study of the coagulation of kraft effluent by sea water

    Creator:
    Andrews, Ben Neal
    Abstract:
    The coagulation of effluent from the kraft pulping and papermaking process was investigated. The amount of material coagulated from saline mixtures of the effluent is determined as a function of time, salinity, kraft effluent concentration, and mixture pH. Individual sources of salinity include sea water and several different solutions of...
    Resource Type:
    Masters Thesis
    Full Text:
    i n :rt s. A general ,e increase _ I-c1.\Lpllq 1_1 101e -L small ni.n 30 _ _ in the

  • Depth estimation and frontal imaging via X-band marine radar

    Creator:
    Honegger, David Andrew
    Abstract:
    This dissertation focuses on two core aspects of remote sensing: (a) interpretation of the remotely sensed data to identify and characterize sea surface features of interest, and (b) the quantitative analysis of previously characterized features to produce robust estimates of geophysical variables. Specifically, these aspects are addressed in the context...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF David Andrew Honegger for the degree of Doctor of Philosophy in

  • Finite element modeling of gusset plate failure using OpenSees

    Creator:
    Walker, Andrew J.
    Abstract:
    The collapse of the I-35W Bridge in Minneapolis, MN in 2007 prompted an investigation into the design and inspection of the steel truss bridges. Further investigation into the collapse revealed that a gusset plate experienced sway buckling, causing the bridge failure. This bridge failure motivated research into the analysis and...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Andrew J. Walker for

  • New Techniques to Monitor and Characterize Landslide Behavior and Controls Using Digital Terrain Models

    Creator:
    Senogles, Andrew
    Abstract:
    Coastal landslides and erosion are major natural hazards resulting in unstable slopes, constituting immense challenges to modern infrastructure. Developing, maintaining, and performing risk assessments of infrastructure on, or close to, these hazards require a detailed understanding of the geophysical processes destabilizing the slope. These efforts start with the collection of...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Andrew

  • Petroleum refinery residuals : a recycling feasibility study

    Creator:
    Hoffman, Andrew J.
    Abstract:
    Large quantities of unused heavy oil and residual waste products from the petroleum refining industry were deposited in on-site landfills, pits, and lagoons, prior to the promulgation of regulations governing their disposal and technology development that would further utilize and/or recycle these materials. Contacting petroleum products with sulfuric acid for...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Andrew J. Hoffman for the degree

  • Bearing capacity and immediate settlement of shallow foundations on clay

    Creator:
    Strahler, Andrew W.
    Abstract:
    Shallow foundations are extensively used to support structures of all sizes and derive their support from near surface soils. Thus, they are typically embedded up to a few meters into the soil profile. Designers of shallow foundations are required to meet two limit states: overall failure of the soil beneath...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Andrew W. Strahler for the degree of Master of Science in Civil

  • 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:
    ABSTRACT OF THE THESIS OF L. Andrew Jansky for the degree of Master of Science in Civil Engineering