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Full-Text Articles in Engineering
De Filtration To Remove Cryptosporidium, Jerry E. Ongerth, Primrose E. Hutton
De Filtration To Remove Cryptosporidium, Jerry E. Ongerth, Primrose E. Hutton
Faculty of Engineering and Information Sciences - Papers: Part A
Laboratory-scale testing investigated the degree of Cryptosporidium oocyst reduction provided by diatomaceous earth (DE) filtration. Three grades of DE from two manufacturers were used in the tests. Reduction was measured using seeded river water applied to Walton test filters. Tests were run for filtration rates of 1 and 2 gpm/sq ft (2.4 and 4.9 m/h). Each run was replicated three times, and quality control was rigorous. Approximately 6 logs of reduction in the concentration of Cryptosporidium oocysts can be expected under routine operating conditions using DE grades having permeability of <1.2 Darcy. Log reductions varied predictably according to the permeability of the DE grade and the filtration rate; they were significantly higher at the higher filtration rate. Agreement was excellent between runs, enabling researchers to distinguish with consistent statistical significance the differences in performance.
Risk Assessment Of Sloping Land Using Gis-Based Mapping, Phil N. Flentje, Robin N. Chowdhury
Risk Assessment Of Sloping Land Using Gis-Based Mapping, Phil N. Flentje, Robin N. Chowdhury
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper, attention is drawn to GIS-based techniques for mapping and risk assessment for slopes and landslides. The authors focus on an approach developed recently for mapping of geology and slope stability in the Northern Illawarra (or the Northern Suburbs of Greater Wollongong Area) in New South Wales, Australia. The use of databases of geology and land instability and use of other GIS-based information relevant to sloping land for the development of a valid hazard and risk assessment procedure is explored. The developed approach will be applicable to other sloping areas and, in particular, urban areas both nationally and …
The Impact Of Ios-Enabled Business Process Change On Business Outcomes: Transformation Of The Value Chain Of Japan Airlines, Akemi Chatfield, Niels Bjorn-Andersen
The Impact Of Ios-Enabled Business Process Change On Business Outcomes: Transformation Of The Value Chain Of Japan Airlines, Akemi Chatfield, Niels Bjorn-Andersen
Faculty of Engineering and Information Sciences - Papers: Part A
We present a framework for evaluating the impact of IT-enabled radical process change on business outcomes at Japan Airlines. The framework presents a systemic view of factors that are shown to impact the firm's business outcomes. The framework identifies salient global environmental factors and business challenges the firm faces, strategic responses it makes, and management methodologies and strategic IT systems adopted to enable the firm's changes in business processes. We then discuss the radical transformation of the traditional keiretsu-based value chain at Japan Airlines, the world's third largest airline company. We apply the framework to evaluate the impact of the …