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Operations Research, Systems Engineering and Industrial Engineering Commons™

Open Access. Powered by Scholars. Published by Universities.®

1999

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Articles 91 - 94 of 94

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

A Biologically Inspired Connectionist Model For Image Feature Extraction In 2d Pattern Recognition, Cihan H. Dagli, Raymond K. Chafin Jan 1999

A Biologically Inspired Connectionist Model For Image Feature Extraction In 2d Pattern Recognition, Cihan H. Dagli, Raymond K. Chafin

Engineering Management and Systems Engineering Faculty Research & Creative Works

A new edge detection method is presented which borrows from recent research into primate vision biology, and offers improved noise performance over classical methods. Beginning with spatio-temporal shunting models for retinal cones, horizontal cells, bipolar cells, and retinal ganglions, a set of simplified steady-state solutions are developed which lend themselves to efficient computation on standard computer equipment. The retinal model output is found to be nominally equivalent to the classical edge detector, but is produced differently. A simplified model of the lateral geniculate nucleus (LGN) has been produced. Taking the output of the retinal model, the LGN simple cell and …


Short-Term Generation Asset Valuation, Chung-Li Tseng, G. Barz Jan 1999

Short-Term Generation Asset Valuation, Chung-Li Tseng, G. Barz

Engineering Management and Systems Engineering Faculty Research & Creative Works

We present a method for valuing a power plant over a short term period using Monte Carlo simulation. The power plant valuation problem is formulated as a multi stage stochastic problem. We assume there are hourly markets for both electricity and the fuel used by the generator, and their prices follow some Ito processes. At each hour, the power plant operator must decide to run or not to run the unit so as to maximize expected profit. A certain lead time for commitment decision is necessary to start up a unit. The commitment decision, once made, is subject to physical …


Value-Based Product Structure Evaluation For Disassembly, Shivakumar Viswanathan, Venkat Allada Jan 1999

Value-Based Product Structure Evaluation For Disassembly, Shivakumar Viswanathan, Venkat Allada

Engineering Management and Systems Engineering Faculty Research & Creative Works

Designing for the ease of end of life (EOL) disassembly is an important design function. The product structure that is the spatial relationships between the parts of the product and the value distribution over them plays an important role in determining the ease and profitability of disassembly. This paper presents a conceptual methodology to determine the effect of the spatial precedence on the desired value precedence of the product. The methodology introduces a digraph called the bureau graph to model this relationship between the spatial and value precedence structures. Based on this modeling indices are derived that provide a holistic …


Analytical Appraisal Of The Egyptian Privatization Experience, Hanaa Mossad El Habrouk Jan 1999

Analytical Appraisal Of The Egyptian Privatization Experience, Hanaa Mossad El Habrouk

Archived Theses and Dissertations

No abstract provided.