Dulcy M. Abraham

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This paper develops a method for allocating a security budget to a water supply network so as to maximize the network's resilience to physical attack. The method integrates max-min linear programming, hydraulic simulation, and genetic algorithms for constraint generation. The objective is to find a security allocation that maximizes an attacker's marginal(More)
In spite of the efforts by government agencies, labor organizations, and researchers in the field of health and safety, injuries and fatalities continue to affect the construction industry. In 2002, the construction industry had the undesirable distinction of having two of the most dangerous occupations in the United States, with fatalities among structural(More)
IntroductIon This article reviews current research and practice of knowledge management (KM) in the management of Civil infrastructure systems. Civil infrastructure systems, such as energy systems (electric power, oil, gas), telecommunications, and water supply, are critical to our modern society. The economic prosperity and social well being of a country(More)
Since September 11, 2001, protecting the na-tion's water infrastructure and improving water network resiliency have become priorities in the water industry. In this work, we develop methods to mitigate the consequences of water shortage resulting from destruction of facilities in water networks. These methods integrate search techniques, such as(More)
Discusses the application of computer simulation for the analysis of productivity of breakwater construction. Data collected from the first stage of the South Star Project in Taiwan is used in modeling and analysis. The South Star project involves embanking land from the sea, using industrial waste as deposits and expanding the seashore line as well as(More)