This paper describes how colored Petri nets can be used for modeling the Paris underground Metro system. This is one of the most complex metro systems in the world. In this paper, the metro system is analyzed and described. The method of analysis is outlined. A working model for three of the major lines was constructed using CPNs. The results and other issues that have to be tackled are explain...

This study focused on the presence of antibiotic-resistant bacteria in a metro system as an example of a public transportation system. The molecular characteristics of Staphylococcus were investigated to discern which strains were isolated from metro stations in Shanghai. These were compared with strains isolated from hospital treatment rooms and parks. Airborne Staphylococcus samples in the me...

In frozen regions, especially metro tunnel portal sections, which are vulnerable to an externally low-temperature atmosphere, would lead damage affecting traffic safety. To clarify how the air temperature field at sections varies with periodically changing atmospheric temperature, a site test was conducted on Metro Line 1 in Hohhot Inner Mongolia Autonomous Region, and basic heat transfer equat...

BACKGROUND Meteorological conditions and air pollution in urban environments have been associated with general population and elderly mortality, showing seasonal variation. OBJECTIVES This study is designed to evaluate the relationship between apparent temperature (AT) and air pollution (PM₂.₅) vs. mortality in elderly population of Metro Vancouver. METHODS Statistical analyses are performe...

|Diierentiated services for the Internet are undergoing intensive development. It is widely accepted that they will require usage sensitive pricing. The Paris Metro Pricing (PMP) proposal is to rely on pricing alone to provide diierentiated services. PMP is the simplest diierentiated services system in terms of complexity.

In this globalization era, companies are required to keep learning and changing. In the process of changing, companies need to be adaptive and innovative. Therefore, a company needs to cultivate and maintain its knowledge. Among other ways, it can be achieved by encouraging the process of knowledge sharing within the company. Hence, this study aims to know the perception of the employee regardi...