نتایج جستجو برای: railroad stations

تعداد نتایج: 35694  

Journal: :The journal of the American Academy of Psychiatry and the Law 2006
Kenneth J Weiss J Michael Farrell

Railroad and subway drivers can experience psychological trauma when trains strike or nearly miss other trains, motor vehicles, or persons or become instruments of death. Derailments, collisions, and suicides on the tracks can induce feelings of helplessness, horror, guilt, and anxiety in the drivers. Although some drivers experience acute stress disorder (ASD) or post-traumatic stress disorder...

Journal: :International Journal of Current Science Research and Review 2021

Indian railway is one of the largest networks in country. Its motto “the life line country”, and main transport completed by railways Railroad cheapest safest means transport, but there are also certain accidents on railroad. 60% caused road failures or formation cracks road. Today’s rail systems involve manual track inspection, which cumbersome not entirely effective. However, detection correc...

2006
S Kenderian B B Djordjevic

In recent years, remote non-contact NDE techniques have been sought in an effort to improve railroad related inspection operations. More specifically, efforts have been aimed at increasing the inspection coverage and performing dynamic inspections for railroad tracks and wheels. Throughout most of the 20th century, dynamic inspections of railroad tracks have been developed and performed, howeve...

2002
Milan E. Soklic

This article discusses the design and implementation of laboratory equipment suitable for teaching and research in the area of embedded and real-time systems, and examines some possible studies and avenues concerning this subject matter. The laboratory is designed and assembled around several commercially available components. Its main software components are the integrated software development...

2011
Zifeng Wang Li Ruan Limin Xiao Yao Zheng Yunfan Dong

Based on cellular automaton and multi-agent model, we propose a novel hybrid model for distributed simulation of train-group in the railway traffic. An improved cellular automaton model is designed for simulating the underlying structure of the railroad and a multi-agent model is used for dynamic scheduling of the train-group. The combination of both models answers for the distributed simulatio...

Journal: :Transportation Science 2011
Manish Verma Vedat Verter Michel Gendreau

Railroad transportation of hazardous materials did not receive as much attention as highway transportation in the academic literature, although comparable volumes are shipped via these two transport modes in North America and Europe. In this paper we present an optimization methodology for the railroad tactical planning problem with risk and cost objectives. We determine the routes to be utiliz...

2006
Wolfgang KAPPES Bernd ROCKSTROH Werner BÄHR Michael KRÖNING

For more than 6 years, the automated ultrasonic and eddy-current systems for the inspection of railroad wheel sets, developed by Fraunhofer IZFP and Fraunhofer TEG, have been field-hardened through daily operation at various maintenance facilities of the Deutsche Bahn (DB). The testing stations are equipped with IZFP’s multi-channel electronics, a modular PC integrated system operating inside 1...

2008
G. Frederico V. Cavenaghi

The Brazilian freights railroad transportation, in the last five years, is achieving a significant growth. Currently, the railroad transport operators use performance evaluation measures, related to financial and operational aspects, being that in some cases, there isn’t a relation of cause and effect between them. According to the Brazilian research, 85% of the railroad transport companies use...

1995
Diptiman Sen B. Sriram Shastry R. E. Walstedt

We study the sawtooth lattice of a coupled spin 1/2 Heisenberg system, a variant of the railroad trestle lattice. The ground state of this system is twofold degenerate with periodic boundary conditions and supports kink antikink excitations, which are distinct in this case, unlike the railroad trestle lattice. The resulting low temperature thermodynamics is compared with the recently discovered...

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