نتایج جستجو برای: railway transportation

تعداد نتایج: 70602  

2014
Yan Xi Li Jing

Purpose: With the development of the transportation, more traveling factors acting on the railway passengers change greatly with the passengers’ choice. With the help of the modern information computing technology, the factors were integrated to realize quantitative analyze according to the travel purpose and travel cost. Design/methodology/approach: The detailed comparative study was implement...

2017
Svetla Stoilova

The aim of this study is to develop a methodology for selection of routing of different categories of intercity passenger trains taking into account of the uncertainty of the processes and using the fuzzy linear programming method. The fuzzy theory allows for the presentation of real data with uncertainty due to imprecise measurement. This research studies the fuzzy problems with fuzzy constrai...

2001
Vincenzo Fazio

The dependability or RAM (Reliability, Availability and Maintainability) parameters are the most important elements that allow to estimate the Life Cycle Cost (LCC) of a system and to forecast performances during operating conditions. In the field of railway transportation, conventional measures, such as the mean delay of the train, or the Service Dependability (SD), can be profitably used to e...

2012
Young K. Bae

Mastering photon propulsion is proposed to be the key to overcoming the limit of the current propulsion technology based on conventional rocketry and potentially opening a new space era. A perspective on photon propulsion is presented here to elucidate that interstellar manned roundtrip flight could be achievable in a century within a frame of exiting scientific principles, once the required ex...

2009
Bar Güne

Railways, which had long been neglected in Turkey, reclaim their significance once more with the new investments that are being made in recent years. In correlation with growing demand for transportation, the need for high-speed railway lines and for bridges and viaducts, which constitute integral components of railways, increases by the day. In many European states, there are railways that can...

Journal: :Transport systems and transportation technologies 2016

2002
A. Alessandri C. Cervellera F. Grassia

The e ects of carbon emissions have been the objective of an investigation that was based on the model of the nation-wide transportation system with railway, waterway, and roadway. The dynamics of such a complex phenomenon depends on a set of control variables (i.e., the percentage of carbon tax on the fuel cost, the operational cost coverages, and growth rates of the various transportation mod...

Journal: :IOP Conference Series: Materials Science and Engineering 2019

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