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  • Development and comparison of stand-level bucking optimization methods

    Creator:
    Laroze, André J.
    Abstract:
    Heuristics based on Monte-Carlo Integer Programming (MCIP) and Tabu Search (TS) techniques were developed for generating easily implementable bucking rules that are applicable to entire stands (as opposed to individual stem classes), and for selecting the rule-set that provides the best feasible solution (given log prices and market constraints). A...
    Resource Type:
    Dissertation

  • The choice of the optimal sawtimber harvesting system (a theoretical approach based on mathematical programming)

    Creator:
    Mikkonen, Esko
    Abstract:
    An extension of the sensitivity analysis of linear programming, called parametric programming is used in determining optimal sawtimber logging system mix. The five logging systems under study are manual log-length, system, log-length processor and harvester systems, manual tree-length system and tree-length harvester system. In conditions where it is not exactly...
    Resource Type:
    Capstone Project

  • Parameter estimation in system modeling using man-machine interaction and computer learning

    Creator:
    Wagner, John Arthur
    Abstract:
    In certain cases in system modeling, parameter search problems are complicated by the availability of scanty and corrupt physical system data and a large number of model parameters. An algorithm using man-machine interaction is presented to attack this type of parameter search problem with the objective of efficiency in the...
    Resource Type:
    Dissertation
    Full Text:
    of the parameters of a mathematical system model by comparing real sys- tem data with the system

  • Development of a posture prediction model

    Creator:
    Dendamrongvit, Thidarat
    Abstract:
    Biomechanical models have been used in designing human work environments to evaluate potential risks to workers before a work environment is constructed. In order for work environments to be modeled correctly, most biomechanical models require as input, an accurate body posture of the worker. This information can be obtained by,...
    Resource Type:
    Masters Thesis
    Full Text:
    biomechanical model to predict maximum static hand force exertion capability. This mathematical biomechanical

  • Numerical simulation of cavitating bubble-laden turbulent flows

    Creator:
    Shams Sobhani, Ehsan
    Abstract:
    Many engineering devices and propulsion systems suffer from undesirable effects of cavitation; such as degradation in the efficiency of pumps and turbines, generation of noise and vibration on ship propeller, increased drag and erosion of propeller blade, etc. In spite of decades of research on this problem, detailed study of...
    Resource Type:
    Dissertation
    Full Text:
    unstructured grid finite volume solver. Large Eddy Simulation technique with dynamic Smagorinsky subgrid model

  • An economic model of soil compaction in forestry

    Creator:
    Stewart, Rodney Aloysius
    Abstract:
    A model is presented which predicts the net present value of a stand level multi-entry harvest plan. The model accounts for potential volume losses due to harvest-related soil compaction. The goal of this project was to answer five economic questions about the issue of soil compaction in forestry. The five...
    Resource Type:
    Capstone Project

  • Some mathematical models in ecology

    Creator:
    Engstrom-Heg, Verna Louise
    Resource Type:
    Masters Thesis
    Full Text:
    mathematical model that closely simulates nature Is likely to Involve a great deal of computation. Therefore

  • The plume model for large utility scale atmospheric fluidized bed combustors

    Creator:
    Park, Dalkeun
    Abstract:
    The atmospheric fluidized bed combustor (AFBC) is an alternative to the pulverized coal burner. The size of a utility scale AFBC would be enormous so that the use of large particles is necessary to reduce its size. In modeling the combustion of coal and capture of sulfur released from the...
    Resource Type:
    Dissertation
    Full Text:
    The plume model for large utility scale atmospheric

  • Modified limiting dilution analysis : a mathematical model with biological interpretation

    Creator:
    Maier, Stefan H.
    Abstract:
    A mathematical model of Limiting Dilution Analysis for two limiting parameters is presented and investigated. Limiting Dilution Analysis is a microbiological cell assay developed for immunological application. In the given case we deal with the interaction between B lymphocytes, macrophage derived factor and T-independent antigens. The state of the art...
    Resource Type:
    Masters Thesis
    Full Text:
    Modified limiting dilution analysis : a mathematical model

  • Coupled dynamics of bouys and mooring tethers

    Creator:
    Idris, Krisnaldi
    Abstract:
    Time-domain models were developed to predict the response of a tethered buoy subject to hydrodynamic loadings. A coupled analysis of the interaction of a buoy and its mooring is included and three-dimensional response is assumed. External loadings include hydrodynamic forces, tethers tensions, wind loadings and the weight of both cable...
    Resource Type:
    Dissertation
    Full Text:
    . Application of the present model to solve a multi-leg/multi-point mooring system is also provided