Stations are the main components of the subway systems. Despite the progress in the construction and maintenance, stations have always been exposed to the natural and man-made disasters. In such incidents, the station’s evacuation capability has a direct relation with a passenger's life. Various factors affect the station's evacuation capability. Investigation of these factors and evaluation of...

The following example illustrates the problem treated in this paper: Two gas stations are located one after the other on a main road. A driver who needs to ll his tank sees the queue situation at the rst station but not at the second one. The driver estimates the expected waiting time at the rst station, compares it to the conditional expected waiting time at the second one, and decides which s...

tracking and determining the amount and types of urban sewage that is being releasing to the environment is important in planning for wastewater treatment systems and water quality control. in this research, in four stations of anzali lagoon, (by means of a gas chromatograph device with mass detector spectrometer) wastewater pollution has been measured and evaluated with molecular indicator lin...

Tracking and determining the amount and types of urban sewage that is being releasing to the environment is important in planning for wastewater treatment systems and water quality control. In this research, in four stations of Anzali Lagoon, (by means of a gas chromatograph device with mass detector spectrometer) wastewater pollution has been measured and evaluated with molecular indicator Lin...

In this paper, we analyzed the influence of time required to begin coping behaviors of managers in chemical terrorism. In order to calculate the damage of chemical attacks in a major rail station, our network model-based pedestrian simulator was applied with hazard prediction systems of indoor gas diffusion. Our analysis was used for enlightening the managers of the rail station in a tabletop e...

Perspectives Circumnavigating the globe every 90 minutes, 400 km above the Earth's surface and at a speed of 27 600 km per hour, the international space station typically does not evoke thoughts of rural Haiti. This aerospace behemoth contains some of the most expensive, most advanced technology ever designed. An isolated extraterrestrial outpost of humanity, it represents a marvel of human eng...

the present sought to draw a comparison between model predictive control performance and two other controllers named simple pi and selective pi in controlling large-scale natural gas transport networks. a nonlinear dynamic model of representative gas pipeline was derived from pipeline governing rules and simulated in simulink® environment of matlab®. control schemes were designed to provide a s...