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Operations Research, Systems Engineering and Industrial Engineering Commons

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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

Development Programs For One-Shot Systems Using Multiple-State Design Reliability Models , Suntichai Shevasuthisilp Jan 2001

Development Programs For One-Shot Systems Using Multiple-State Design Reliability Models , Suntichai Shevasuthisilp

Retrospective Theses and Dissertations

Design reliability at the beginning of a product development program is typically low and development costs account for a large proportion of the total product cost. Our research focuses on how to conduct "development programs" (series of tests and redesigns) to both achieve high final design reliability and spend as little of a fixed budget as possible on development. Multiple-state reliability models are used. We consider one-shot systems, which are destroyed at first use or during testing. Dynamic programming is used to identify the best test-and-redesign strategy and is shown to presently be computationally feasible for at least 5 state ...


Design Of A Web-Based Integrated Material Handling System For Manufacturing Applications , Chiwoon Cho Jan 2001

Design Of A Web-Based Integrated Material Handling System For Manufacturing Applications , Chiwoon Cho

Retrospective Theses and Dissertations

In this research, a Web-based system called DESIGNER for the design of integrated material handling systems is developed. DESIGNER models the material handling system design processes including the material handling equipment (MHE) selection and employs information on the most common MHE types used in material movement, storage, and positioning.;The system designs the material handling system for an application through three phases. In Phase I, the procedure identifies the most appropriate MHE type among the alternatives that are suitable for the application. Knowledge-based rules are employed to identify alternative handling equipment for each material flow link. To select the final ...


Interval Estimators Of Parameters For Normal One Sample And Balanced One-Way Random Effects Models When Data Are Rounded , Chiang-Sheng Lee Jan 2001

Interval Estimators Of Parameters For Normal One Sample And Balanced One-Way Random Effects Models When Data Are Rounded , Chiang-Sheng Lee

Retrospective Theses and Dissertations

In standard statistical analysis, data are typically assumed to be essentially exact. But in fact, all real data are reported to some smallest unit of measure related to the precision of the device used to produce them. We might call such data "rounded" because they are really obtained by "rounding to something." We first discuss the interval estimation of the parameters mu and sigma, when a single rounded sample comes from the N(mu, sigma 2) distribution with both parameters unknown. Then we discuss the interval estimation of variance components sigma and sigmatau if rounded data are from a balanced ...


Statistical Modeling And Design For Cmm-Type Data Locating Known Two-Dimensional Geometries , Dewi Rahardja Jan 2001

Statistical Modeling And Design For Cmm-Type Data Locating Known Two-Dimensional Geometries , Dewi Rahardja

Retrospective Theses and Dissertations

This research was motivated by a problem from a car-manufacturer that needed to compare/analyze two hood assembly fixtures. The consistency of the car hood placement was examined for both fixtures. A "constant width" gap between the hood and the car's body is preferred. A "wide" gap at one point and a "narrow" gap at another constitutes a bad quality placement of the car hood, and will affect customer satisfaction.;3-D data were taken using a Coordinate Measuring Machine (CMM) with 12 (fixed) probe paths to the hood. For each fixture, ten "12-dimensional" vectors were taken and the original ...


Generation Planning For Electric Power Utilities Under Market Uncertainties: A Real Options Approach , Chung-Hsiao Wang Jan 2001

Generation Planning For Electric Power Utilities Under Market Uncertainties: A Real Options Approach , Chung-Hsiao Wang

Retrospective Theses and Dissertations

The generation business in the U.S. is currently undergoing a transition from a regulated monopoly toward an uncertain, competitive market. Under the competitive market, the price of electric power as well as the corresponding revenue may be much less certain than before. These market uncertainties have increased the significance of two critical factors in generation planning. These factors are financial risks and managerial flexibilities.;In order to quantitatively and objectively address these two factors in generation planning, in this dissertation, we design and analyze a series of mathematical models based on the real options approach for generation planning. Hence ...