Ji Sang Park

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Dynamic nature of the A/E/C industry, multiple project participant, and disconnected communication between project participants make it difficult to develop integrated information systems for the A/E/C industry. This paper focuses on defining of interrelationship between data model and process model for construction project management, as a step toward(More)
Emphysematous pyelonephritis (EPN) is a rare, life-threatening complication of upper urinary tract infections that is characterized by the presence of gas in the renal parenchyma and perirenal space. It commonly occurs in diabetic patients. Escherichia coli are the most common causative organisms, with few reports implicating Citrobacter freundii as the(More)
More and more 3D terrain information is converted and stored in a digital format, and they have been used as a prim ary data source for a variety of spatial analyses in various application domains. One unsolved issue is that 3D spatial analyses (e.g., 3D ray tracing) often require huge computing cost in terms of processing time and hardware. This pap er(More)
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