This study was designed to assess the after effects of sarin exposure on the nervous system in victims of the Tokyo Subway Sarin Attack, which occurred on 20 March, 1995. We performed a similar study 3 yr after the disaster. This time, we newly enrolled 36 staff of the Teito Rapid Transit Authority (Tokyo Eidan subway) to assess the 7 yr after effects on the nervous system, and merged previous ...

A Zigbee-based ubiquitous sensor network (USN) has many industrial applications and provides flexible measuring environments. In particular, the USN system can replace existing measuring devices in harsh environments such as subway stations. To monitor the intensities of various pollutants and air qualities in subway tunnels, this study applied the USN technique. A novel wireless sensor module,...

BACKGROUND AND OBJECTIVES People usually converse in real-life background noise. They experience more difficulty understanding speech in noise than in a quiet environment. The present study investigated how speech recognition in real-life background noise is affected by the type of noise, signal-to-noise ratio (SNR), and age. SUBJECTS AND METHODS Eighteen young adults and fifteen middle-aged ...

Robustness studies on integrated urban public transport networks have attracted growing attention in recent years due to the significant influence overall performance of system. In this paper, topological properties and robustness a bus–subway coupled network Beijing, composed both bus subway as well their interactions, are analyzed. Three new models depicting cascading failure processes propos...

Abstract. Urban rainstorms and floods often occur, causing serious loss of life property, bringing great challenges to the safe operation subways. In response need for prevention control urban subway waterlogging, this project is based on geographic information technology, basis "one map" subway, using intelligent sensing camera equipment, independent research development monitoring water level...

To evaluate the layout adjustment scheme of bus line during subway construction, the method combining quantitative survey and fuzzy aggregation is used. One criterion is transit service level, which considered nonlinear coefficient, line length, transfer distance and average waiting time. Another criterion is traffic impact degree incorporating three factors: saturation degree on work-zone sect...

A subway train-steel spring floating slab track-tunnel coupling dynamic model, considering short and middle-long wavelength random track irregularities, and longitudinal connection between adjacent slabs of steel spring floating slab track, was developed. And the influence of slab length on dynamic characteristics of the system under different track conditions and train speeds are theoretically...

increasing development of engineering projects construction such as city subway needs appropriate investigation, management and control of groundwater. therefore, precise estimation of hydrogeological parameters such as hydraulic conductivity is the most important factor in studies and modeling of groundwater and geotechnical issues. in recent decades, various laboratory and field methods exist...

The centrality of stations is one the most important issues in urban transit systems. central such networks have often been identified using network to-pological measures. In real networks, passenger flows arise from an interplay between dynamics individual person movements and underlying physical structure. this paper, we apply a two-layered model to identify Beijing Subway System, which lower...

This paper first describes experimental results on the characterization of the propagation in subway tunnels. A first set of experiments have been carried out in Paris subway to determine the path loss, the long term and short term fading and the masking effect produced by a train. Then a wide band analysis has been performed both for a SISO (Single Input Single Output) and for a MIMO (Multiple...