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  • A model reference adaptive system for control of a flexible mechanical manipulator

    Creator:
    Lee, Byeung Kyun
    Abstract:
    For control of a flexible manipulator, the assumed- mode method is applied to the mathematical model of the model reference adaptive system. In the assumed-mode method, the flexible, continuous manipulator is described by a limited number of degrees of freedom. A modified model reference adaptive system is studied for direct...
    Resource Type:
    Dissertation
    Full Text:
    A model reference adaptive system for control of a

  • Nonlinear control applied to power systems

    Creator:
    Vedam, Rajkumar
    Abstract:
    When large disturbances occur in interconnected power systems, there exists the danger that the power system states may leave an associated region of stability, if timely corrective action is not taken. Open-loop remedial control actions such as field-forcing, line-tripping, switching of series-capacitors, energizing braking resistors, etc., are helpful in reducing...
    Resource Type:
    Dissertation
    Full Text:
    device is used to implement the nonlinear controller in this dissertation. A mathematical model of the

  • Spatially explicit inter-temporal forest management decision under the risk of fire

    Creator:
    Konoshima, Masashi
    Abstract:
    This paper presents a framework for analyzing efficient spatial allocation of forest management efforts - fuel treatment and harvest - under the risk of fire. The framework integrates a fire behavior model and a spatially-explicit stochastic dynamic optimization model. I investigate the effects of spatial interaction across plots during forest...
    Resource Type:
    Dissertation
    Full Text:
    hypothetical landscape. Their model searched for optimal fire control efforts to minimize risk of burning a

  • Aseismic performance of a cable-stayed structure with decentralized H[infinity] control

    Creator:
    Chńg, Guan B.
    Abstract:
    The dissertation uses state-of-the-art structural engineering theories, in parallel with the modern and still-developing control theory of electrical engineering to mitigate the vibratory responses of a double-stayed bridge subjected to strong earthquake ground motions. First, a nonlinear finite element model of the double-stayed bridge subjected to non-uniform (multi-support) earthquake excitations...
    Resource Type:
    Dissertation
    Full Text:
    , Physical Dimensions, and Locations of Sensors and Control Actuators 6 2.2 Finite Element Model of the

  • Planning for controllable network devices in power transmission systems

    Creator:
    Kosterev, Dmitry N.
    Abstract:
    The full capacity of the existing transmission lines is often underutilized due to the system stability requirements. Controllable network devices represent the effective means of improving the system stability, and their deployment allows better use of the existing transmission facilities and can help to avoid construction of new lines. This...
    Resource Type:
    Dissertation
    Full Text:
    Characteristics 40 3.4.1 TCSC Ratings 41 3.4.2 Capability characteristics 42 3.5 Powerflow Model and Control

  • Determination of quality parameters for the Pacific whiting fishery using neural network and induction modeling

    Creator:
    Peters, Gregory J.
    Abstract:
    Pacific whiting, with a maximum sustainable yield between 150,000 and 250,000 metric tons, is the largest stock of fish found off Oregon. The majority of the fish are processed into surimi. Hundreds of variables could potentially affect surimi quality (gel strength). Alternative harvesting and processing input combinations, as well as...
    Resource Type:
    Dissertation
    Full Text:
    model for prediction and control of Pacific whiting quality. Neural Networks Neural networks are a

  • Optimal soaring by a small autonomous glider

    Creator:
    Kyle, Jason A.
    Abstract:
    Extending the flight time of an autonomous unmanned air vehicle by soaring is considered. A suboptimal controller is developed and successful static soaring is demonstrated with a 6 degree of freedom glider model. Altitude gain rates of between ¼ and ½ m/s are achieved with this simple implementation. A hybrid...
    Resource Type:
    Dissertation
    Full Text:
    ................................................................................................. 6 GLIDER MATHEMATICAL MODEL................................................................ 8

  • Sliding-mode control of the super maneuverable aircraft

    Creator:
    Koo, Chang Sul
    Abstract:
    In this thesis, A nonlinear methodology for the control of the highly maneuverable, high performance aircraft HARV (F-18) is studied by using sliding-mode control (SMC). This control law, which takes a continuous function when the input constraints are not considered, satisfies the reachability condition by which concerned states are driven...
    Resource Type:
    Dissertation
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    control both in magnitude and direction, have been developed and flight tested. In spite of control

  • A novel unified algorithm and hardware architecture for integrated modular division and multiplication in GF(p) and GF(2[superscript]n) suitable for public-key cryptography

    Creator:
    Tawalbeh, Lo'ai Ali
    Abstract:
    The spread of the internet and communications techniques increases the necessity for security in applications that involves sharing or exchange of secret or private infor- mation. Public-key cryptography is widely used in establishing secure communication channels between the users on the Internet, for E-commerce transactions, and in net- work security...
    Resource Type:
    Dissertation
    Full Text:
    , with a mathematical proof, an efficient unified division algorithm to compute the modular division

  • Simulator-Defined MDP Planning with Applications in Natural Resource Management

    Creator:
    Alkaee Taleghan, Majid
    Abstract:
    This work is inspired by problems in natural resource management centered on the challenge of invasive species. Computing optimal management policies for maintaining ecosystem sustainable is challenging. Many ecosystem management problems can be formulated as MDP (Markov Decision Process) planning problems. In a simulator-defined MDP, the Markovian dynamics and rewards...
    Resource Type:
    Dissertation
    Full Text:
    Sample-Efficient MDP Planning . . . . . . . . . . . . . . . . 13 2.5 Improved Model-Based MDP Planning