نتایج جستجو برای: electrified railway

تعداد نتایج: 15445  

2016
Hang Liu Qunzhan Li

Traction power supply equipments are the core part of the high-speed railway, so the maintenance of the power supply system is crucial for the security of the railway. Based on the research on the durable years of the traction power supply equipments, this paper puts forward the model of testing the traction power supply equipments of the reliable high speed railway. Some practical researches h...

Journal: :J. Global Optimization 2003
Peter Brucker Johann Hurink Thomas Rolfes

In the context of making timetables for railway companies the following railway carriage routing problem occurs. Given a timetable containing rail links with departure and destination times/stations and the composition of the trains, nd a routing of railway carriages such that always the needed carriages are available if a train departs. We will present a local search approach for this routing ...

Journal: :advances in railway engineering,an international journal 2013
saeed mohammadzadeh seyed ali mosayebi reza moosapoor

the vibrations produced by trains include two parts which are deterministic and random vibrations. due to variation of dynamic loads and patterns of load-time, the random vibration of moving train is one of the most important issues in the field of railway engineering. one of the important sources in producing the train vibrations is rail roughness and irregularities. in this paper, responses o...

Journal: :Gigiena i sanitariia 2001
V B Pankova V K Ivanov V S Kutovoĭ

The paper outlines the main constituents of occupational risk in railway workers, which are based on the sanitary and biomedical criteria of injury safety. Sociomedical aspects of the incidence of railway occupational diseases and injuries are discussed. A list of major occupational factors and causes that determine a high occupational risk in railway workers is given.

2014
Karoline Lukaschek Jens Baumert Natalia Erazo Karl-Heinz Ladwig

BACKGROUND The majority of fatalities on the European Union (EU) railways are suicides, representing about 60% of all railway fatalities. The aim of this study was to compare time patterns of suicidal behaviour on railway tracks in Germany between two observation periods (1995-1998 and 2005-2008) in order to investigate their stability and value in railway suicide prevention. METHODS Cases we...

Journal: :SIAM Journal of Applied Mathematics 2007
Dmitri Tseluiko Demetrios T. Papageorgiou

We study a nonlinear nonlocal evolution equation describing the hydrodynamics of thin films in the presence of normal electric fields. The liquid film is assumed to be perfectly conducting and to completely wet the upper or lower surface of a horizontal flat plate. The flat plate is held at constant voltage, and a vertical electric field is generated by a second parallel electrode kept at a dif...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2005
Nobuya Inada Kuniko Maeda Jun Kawai

Terasawa reported strong X-ray emission from charged-up insulators, and proposed an X-ray production device only using the electrification. We constructed a similar device and studied the conditions of X-ray emission. It was shown that X-rays could be produced without supplying electrons from a filament.

Journal: :Journal of Rail Transport Planning & Management 2022

Non-electrified regional railway lines with typically employed diesel-electric multiple units require alternative propulsion systems to meet increasingly strict emissions regulations. With the aim identify an optimal conventional diesel traction, this paper presents a model-based assessment of hydrogen-powered internal combustion engine or fuel cells as prime mover, combined different energy st...

2012
Slavko Vesković Vera Raičević Gordan Stojić Sanjin Milinković

Passenger rail transport market share has been drastically reduced in the last fifty years. The reforms were aimed at opening the market of railway services and development of competition in the railway sector in order to obtain the benefits of “market forces” and reduction of interventions in the railway sector. Determination of the level of reform often causes confusion and conflicting opinio...

2011
Kuei-Yang Wu

t: -The railway tourism has become a trend due to cultural heritage preservation. There have been voices calling for re-opening of the Old Mountain Line Railway. The service quality controlled by the management will have a great influence on tourists’ intention to use the railway again. Therefore, the service quality after the railway re-opening is the key issue to be considered when it comes t...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید