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Filtering by: Creator Brooks, Elaine R. Remove constraint Creator: Brooks, Elaine R. Committee Member Cozzi, Elaine Remove constraint Committee Member: Cozzi, Elaine

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  • Undergraduate Generalization of Lists and Tables to Solve Introductory Combinatorial Problems

    Creator:
    Aimonetto, Michael C.
    Abstract:
    In this study I viewed video and corresponding transcripts of two students solving introductory combinatorial problems. Using an adapted version of Harel’s (2008) concepts of Result Pattern Generalization and Process Pattern Generalization, I analyzed the work done by the two students. Both students primarily worked through the problem How many...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Elaine Cozzi, Committee Member, representing Mathematics

  • Finite Element and Finite Difference Methods for Maxwell’s Equations in Metamaterials

    Creator:
    Stallcup, Isaac A.
    Abstract:
    In this thesis, we consider Maxwell's Equations and their numerical discretization using finite difference and finite element methods. We first describe Maxwell's equations in linear dielectrics and then present finite difference and finite element methods for this case. We then describe Maxwell's equations in linear metamaterials using the Lorentz and...
    Resource Type:
    Honors College Thesis
    Full Text:
    Mathematics Elaine Cozzi, Committee Member, representing Mathematics Toni Doolen, Dean, Oregon State

  • Semidiurnal Atmospheric Tide Driven Superinertial Oscillation on the Texas-Louisiana Shelf

    Creator:
    Hsu, Fucent Hsuan Wei
    Abstract:
    Basin-scale superinertial oceanic tides have been observed globally to resonate with the continental shelf (e.g., the Patagonian Shelf) with a clear theoretical framework. However, the response of the shelf to atmospheric tides – another basin-scale forcing – has not been discussed. This study explores this response using a prominent S2...
    Resource Type:
    Masters Thesis
    Full Text:
    Shelf Abstract approved: R. Kipp Shearman Basin-scale superinertial oceanic tides have been observed

  • The experimental characterization of membrane behavior in two-phase gas extraction

    Creator:
    Cappello, Nicholas C.
    Abstract:
    Understanding the behavior of hydrophobic membranes is important for applications where separating a gas from a liquid-gas mixture is beneficial. For example, in-situ vapor extraction can be used in microscale heat sinks to improve heat transfer and flow stability. In this study, gas is experimentally evaluated flowing through flexible polytetrafluoroethylene...
    Resource Type:
    Masters Thesis
    Full Text:
    Pressure px Pixels Q Volume flow rate q′′ Heat flux R Resistance, major radius, ideal gas constant r

  • Qualitative Analysis of Maxwell-Duffing Models in Nonlinear Optics

    Creator:
    Tro, Sara K.
    Abstract:
    In this thesis we analyze a model for Kerr optical materials consisting of Maxwell's equations along with the dispersive Duffing model. We consider Duffing models with cubic and quintic polynomial nonlinearities. We assume a traveling wave solution to this nonlinear electromagnetic system and analyze it using the theory of dynamical...
    Resource Type:
    Honors College Thesis
    Full Text:
    , representing Department of Mathematics Elaine Cozzi, Committee Member, representing Department of Mathematics

  • Numerical Analysis of a System of Parabolic Variational Inequalities with Application to Biofilm Growth

    Creator:
    Alhammali, Azhar S. A.
    Abstract:
    In this work we consider a mathematical and computational model for biofilm growth and nutrient utilization. In particular, we are interested in a model appropriate at a scale of interface. The model is a system of two coupled nonlinear diffusion--reaction partial differential equations (PDEs). One of these PDEs is subject...
    Resource Type:
    Dissertation
    Full Text:
    committee members Dr. Ralph Showalter, Dr. Vrushali Bokil, Dr. Elaine Cozzi, and Dr. Katherine R

  • Reynolds Stress Tensor Systems and Applications to Nonuniqueness of Weak Solutions to Fluid

    Creator:
    Donaghue, Patrick E.
    Abstract:
    In the 1954 John Nash [1] showed, through use of an iterative scheme of approximate embedding maps, that the sphere S² could be isometrically embedded into a ball of any radius by a C¹ map. In the 1980's M. Gromov [2] generalized Nash's work to the h-principal and convex integration....
    Resource Type:
    Masters Thesis
    Full Text:
    arbitrary radius R > 0 isometrically [5]. Expanding on the methods Nash employed in his paper Gromov

  • Intra-seasonal sea level variability along the west coast of India

    Creator:
    Dhage, Laxmikant
    Abstract:
    The importance of local versus distant forcing is studied for the wind driven intra- seasonal (30-120 day) sea level anomaly (SLA) variations along the west coast of India. Three locations on the continental slope are chosen to represent the west coast. Two more locations, one east of Sri-Lanka and another...
    Resource Type:
    Masters Thesis

  • Optimal High-bandwidth Non-collocated Control of Ball-screw Drives

    Creator:
    Dumanli, Alper
    Abstract:
    This work presents a novel optimal control strategy for precision motion control of flexible ball-screw feed drives. Typically, ball-screw feed drive control relies on state feedback taken both from motor and the load sides. The controller designed in this thesis is based on the non-collocated framework, where all the feedback...
    Resource Type:
    Masters Thesis

  • Nonuniform Sampling Of Band-limited Functions

    Creator:
    Al-Hammali, Hussain Y.
    Abstract:
    In this thesis, we will study certain generalizations of the classical Shannon Sampling Theorem, which allows for the reconstruction of a pi-band-limited, square-integrable function from its samples on the integers. J. R. Higgins provided a generalization where the integers can be perturbed by less than 1/4, which includes nonuniform and...
    Resource Type:
    Dissertation
    Full Text:
    . J. R. Higgins provided a generalization where the integers can be perturbed by less than 1/4, which