نتایج جستجو برای: railway terminal

تعداد نتایج: 163699  

2013
Zuraida Alwadood Adibah Shuib

This paper presents the review of past studies concerning mathematical models for rescheduling passenger railway services, as part of delay management in the occurrence of railway disruption. Many past mathematical models highlighted were aimed at minimizing the service delays experienced by passengers during service disruptions. Integer programming (IP) and mixed-integer programming (MIP) mode...

2015
Dechen Yao Limin Jia Yong Qin Jianwei Yang

Early identification of faults in railway gearboxes is a challenging task in gearbox fault detection. There are extensive studies, such as patents and papers have been fully developed for processing vibration signals to obtain diagnostic information about gearbox. We have proposed a new technique for detecting faults in the railway gearbox by applying the time frequency parameters and genetic a...

Journal: :Journal of Sound and Vibration 2022

The inerter completes the force-current analogy between mechanical and electrical components, providing equivalent to capacitor. As such, it is a two-terminal passive element that, when implemented ideally, normally said generate force proportional relative acceleration its two terminals. However, this applicable only if does not rotate, so motion device's terminals axial. In many applications,...

2015
Małgorzata Wierzbicka Olga Bemowska-Kałabun Barbara Gworek

Railway transport is a source of pollution to soils and living organisms by e.g. PAHs, PCBs, oil-derived products, pesticides and heavy metals. Soil toxicity evaluation requires chemical analyses, indicating the type and content of particular pollutants, as well as biological analyses, which allow assessing the reaction of organisms to these pollutants. This paper is focused on a multi-aspect e...

Journal: :Journal of epidemiology and community health 2011
C K Law P S F Yip

BACKGROUND Setting physical barriers, for example platform screen doors (PSDs), has been proven to be effective in preventing falls onto railway tracks, but its cost-effectiveness is not known. For economic evaluation of public health interventions, the importance of including non-health factors has been noted despite a lack of empirical studies. This study aimed to investigate the effectivenes...

2016
A. Benaiche

In the current situation, the automobile has become the main means of locomotion. It allows traveling long distances, encouraging urban sprawl. To counteract this trend, the train is often proposed as an alternative to the car. Simultaneously, the favoring of urban development around public transport nodes such as railway stations is one of the main issues of the coordination between urban plan...

2011
Karoline Lukaschek Jens Baumert Karl-Heinz Ladwig

BACKGROUND Constant high-level numbers of railway suicides indicate that prevention strategies against railway suicides are urgently needed. The main question of the present study was whether pre-crash railway suicide behaviour can be identified, using German Federal Police officers experience with suicidal events in railway related environments. METHODS To collect information on pre-crash ra...

2015
Zhou Su Alfredo Núñez Ali Jamshidi Simone Baldi Zili Li Rolf P. B. J. Dollevoet Bart De Schutter

This paper develops a new decision making method for optimal planning of railway maintenance operations using hybrid Model Predictive Control (MPC). A linear dynamic model is used to describe the evolution of the health condition of a segment of the railway track. The hybrid characteristics arise from the three possible control actions: performing no maintenance, performing corrective maintenan...

2017
Lars Abrahamsson

In railway power supply systems using AC frequencies lower than the public grids of 50/60 Hz, high voltage AC overhead transmission lines in railway grid frequency are used as one measure of strengthening the systems. An increased resistance to overhead high voltage AC transmission lines, may motivate cables for future railway power systems. With the frequency of 50/60 Hz, reactive power produc...

2014
Qizhou Hu Ningbo Gao Bing Zhang

In order to rationally evaluate the high speed railway operation safety level, the environmental safety evaluation index system of high speed railway should be well established by means of analyzing the impact mechanism of severe weather such as raining, thundering, lightning, earthquake, winding, and snowing. In addition to that, the attribute recognition will be identified to determine the si...

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