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  • From Functional Modeling to Optimization : Risk and Safety in the Design Process for Large-Scale Systems

    Creator:
    McIntire, Matthew G.
    Abstract:
    In order to more effectively design large, complex systems, risk must be accounted for throughout the design process. A systematic way to account for risk is by using system model simulation. During the conceptual design phase, functional models can be drawn to help the engineer design their system's functional architecture....
    Resource Type:
    Dissertation
    Full Text:
    : From Functional Modeling to Optimization: Risk and Safety in the Design Process for Large-Scale Systems

  • Evaluation and optimization of large-scale engineering system modularity using an axiomatic design approach

    Creator:
    Thielman, Jeffrey L.
    Abstract:
    Large-scale engineering systems provide important functions and at the same time address serious concerns to human society. Because of the complexity and resources involved, the development of these systems is currently a challenging undertaking. In this work, an axiomatic design approach, based on Suhs axiomatic design theory, and combined with...
    Resource Type:
    Masters Thesis

  • Efficient VLSI architectures for MIMO and cryptography systems

    Creator:
    Li, Qingwei
    Abstract:
    Multiple-input multiple-output (MIMO) communication systems have recently been considered as one of the most significant technology breakthroughs for modern wireless communications, due to the higher spectral efficiency and improved link reliability. The sphere decoding algorithm (SDA) has been widely used for maximum likelihood (ML) detection in MIMO systems. It is...
    Resource Type:
    Dissertation
    Full Text:
    design for the MIMO systems. It includes the algorithms simplification, and transformations, hardware

  • Low-complexity high-speed VLSI design of low-density parity-check decoders

    Creator:
    Cui, Zhiqiang
    Abstract:
    Low-Density Parity-check (LDPC) codes have attracted considerable attention due to their capacity approaching performance over AWGN channel and highly parallelizable decoding schemes. They have been considered in a variety of industry standards for the next generation communication systems. In general, LDPC codes achieve outstanding performance with large codeword lengths (e.g.,...
    Resource Type:
    Dissertation
    Full Text:
    considers various VLSI design issues of LDPC decoder and develops efficient approaches for reducing memory

  • Comparison of two microvalve designs fabricated in mild steel using microprojection welding and capacitive dissociation

    Creator:
    Terhaar, Tyson J.
    Abstract:
    Since the dawn of the computer age, there has been a push to create miniature devices. These devices were initially integrated circuit (IC) devices to perform calculations for computers. As the technology progressed, the scope of the devices diverged to included microelectromechanical (MEMS) devices, meaning that the devices perform mechanical...
    Resource Type:
    Masters Thesis
    Full Text:
    area and Al is the upstream orifice area. In this system, the upstream orifice area is quite large.38

  • Industrial power system faults

    Creator:
    Badr, Ahmad Mohamad Amin
    Abstract:
    The purpose of this thesis is to represent and calculate unsymmetrical secondary faults on a grounded wye-to-delta transformer bank. This thesis is specifically concerned with the secondary connections often encountered in industrial installations. Faults on these systems have not been adequately investigated. Three types of faults are considered, namely: 1....
    Resource Type:
    Masters Thesis
    Full Text:
    on this system cause unsymmetrical currents and voltages. The method of symmetrical components is

  • Reliable controller design for systems with transients

    Creator:
    Feng, Lei
    Abstract:
    Reliable controller designs have been developed in this thesis for a number of finite-horizon and infinite-horizon problems with possibly non-zero initial conditions. These reliable controllers assure that system stability and system performance will be maintained despite certain system faults. The performance measure used in this thesis is an "H[subscript ∞]-like...
    Resource Type:
    Masters Thesis
    Full Text:
    this thesis, is the design of feedback controllers that guarantee closed-loop system stability and

  • The use of electrochemical micromachining for making a microfloat valve

    Creator:
    Park, Sang-Bin
    Abstract:
    Micromanufacturing consists of processes for producing structures, devices or systems with feature sizes measured in micrometers. Micromanufacturing began in the mid-1960's with microelectronics fabrication technology. In the 1980's, Micro-Electro-Mechanical Systems (MEMS) began to be developed, in which electrical and mechanical subsystems were integrated at small scales. More recently, Microtechnology-based Energy...
    Resource Type:
    Masters Thesis
    Full Text:
    nozzle of with a diameter of 0.9 mm (Figure 3a). Lamina 2, 4, 5, 6, 7, and 8 were of similar design

  • Fabrication and characterization of thin-film electromagnetic coils and heaters for microchannel applications

    Creator:
    Dehuff, Nicole L.
    Abstract:
    The focus of this thesis involves developing general fabrication processes relevant to the manufacture of two new devices for the Microscale technology Energy and Chemical Systems (MECS) program at Oregon State University. The two MECS devices developed, capture dots and transparent thin-film heaters (TTFHs), require unique process development for successful...
    Resource Type:
    Masters Thesis
    Full Text:
    microelectronics to the design and construction of integrated electromechanical systems." [5] 2.1 Devices

  • Active matrix electroluminescent device power considerations

    Creator:
    Beck, Douglas
    Abstract:
    An active-matrix electroluminescent (AMEL) design tool has been developed for the simulation of AMEL display devices. The AMEL design tool is a software package that simulates AMEL device operation using a lumped parameter circuit model. The lumped parameter circuit model is developed primarily to address AMEL power dissipation issues. The...
    Resource Type:
    Masters Thesis
    Full Text:
    possible: full `on' and full 'off. There are several design approaches for implementing gray scale for