منابع مشابه
Application of advanced fault diagnosis technology in electric locomotives
As the continuous development of intelligent mechatronic systems and robots, the fault diagnosis technology is making full advances in many practical applications. In this paper, an advanced fault diagnosis system, which consists of logical control units, microcontrollers, colour display screens and an industry PC, is developed for SS7E locomotives in China. Based on thoroughly analysing the st...
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We present a new model for a strategic locomotive scheduling problem arising at the Deutsche Bahn AG. The model is based on a multi-commodity min-cost flow formulation that is also used for public bus scheduling problems. However, several new aspects have to be additionally taken into account, such as cyclic departures of the trains, time windows on starting and arrival times, network-load depe...
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Even though rail transportation is one of the most fuel efficient forms of surface transportation, fueling costs are one of the highest operating cost head for railroad companies. In US, unlike Europe, fueling costs are indeed, by far, the single highest operating cost. For larger companies with several thousands of miles of rail network, the fuel bills often run into several billions of dollar...
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seistan was one of the important ancient urban centres in south eastern persia. the ruins of the city show the prosperity and fertility of this city to the extent that a british civil officer considered it as the ancient london of asia. this article attempts to describe the enormous latent wealth of this ancient city which made it important for strategic, political and commercial reasons. due t...
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In the Laboratory of Traction and Rolling Stock systematic research into the methods of testing a traction drive, using the real models has been conducted. The aim of this research was to completely define all elements of the system for testing the main electrical and mechanical properties which include the selection of measuring transducers, the selection and implementation of the system for c...
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ژورنال
عنوان ژورنال: Nature
سال: 1893
ISSN: 0028-0836,1476-4687
DOI: 10.1038/048586a0