Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"freight trains"”.
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ANALYSIS AND SIMULATION OF THE PNEUMATIC BRAKING SYSTEM OF FREIGHT TRAINS
… America, and in many other parts of the world, freight trains still employ pneumatic equipment for braking. The 26C locomotive valve and control valves of the cars are connected by a brake pipe which serves the dual purpose of conducting pneumatic power and transmitting the control signal (brake …
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Prediction of arrival times of freight traffic on us railroads using support vector regression
… of the travel times on the United States freight rail network is high due to large network demand relative to infrastructure capacity especially when traffic is heterogeneous. Variable runtimes pose significant operational challenges if the nature of runtime variability is not predictable. …
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Giving up the Ghost: Death in the Depression
… across the country in a rundown Jalopy? To Jump freight trains and live in box cars? To go on relief? What impact did the depression have on the national and individual psyche? Many authors have dealt with these questions, so why do it again? First, this thesis represents a attempt to draw …
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Capturing videos of trains under ambient lighting conditions for computer vision analysis
Intermodal trains are usually the fastest freight trains in North America. Fuel con- sumption in these trains is high because of their aerodynamic characteristics. If the loads on these railcars were placed in better con gurations, it would be possible to reduce fuel consumption. In order to …
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Being in Transit: Life, Death, and the Politics of Migrant Journeys from Central America to the United States
… Whether travelling by foot or riding atop large freight trains known as “the Beast,” migrants spend weeks, months, and even years in transit, navigating a dense landscape of hardening borders and immigration enforcement in Mexico and the U.S. while encountering incredible dangers along the way, …
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Strategische Allianzen im europäischen Eisenbahngüterverkehr
Seit den 90er Jahren ist die Wettbewerbsstruktur im europäischen Eisenbahngüterverkehr starken Veränderungen unterworfen. Die Auflösung staatlicher Monopole sowie die Öffnung nationaler Märkte implizieren einen intensivierten Wettbewerb, bieten jedoch gleichzeitig die Möglichkeit, sich über …