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 20 of 929 for “"rail"”.
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Design of a bipolar rail-to-rail operational amplifier
Thesis (M.Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Rail Tunnel Evacuation
In this thesis, human behavior in rail tunnel fires is explored. Descriptive knowledge is presented related to the evacuation of passenger trains, and the subsequent tunnel evacuation to a safe location. More specifically, a theoretical framework that can aid the understanding of human behavior is …
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Rail and Tie
<p>Rail and Tie is a novel featuring five protagonists, all survivors of the same train derailment and crash, and each of the main characters walks away from that trauma suffering from their own version of Post-traumatic Stress Disorder. An older couple, Marvin and Ruby, are forced to retire and …
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Improving toggle rate in a rail-to-rail comparator output stage
The demand for high-speed components has driven an increase in the speed of analog comparators, a building block for many analog circuits. This paper describes the modification of one of Linear Technology's low-cost, high-speed comparators to increase the output toggle rate beyond the one hundred …
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Rail Wheel Noise in Road to Rail Maintenance of Way Vehicles
Railroads across North America use railgear devices to enable street legal vehicles to travel on the same railroad tracks used by trains. Thousands of these vehicles are used to regularly inspect and maintain the infrastructure that keeps the North American economy running. A common complaint when …
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Estimations of rail irregularities
Inspection cars that have been used to measure rail irregularities are costly and need operators. This thesis proposes a method to estimate rail irregularities by measuring accelerations of a passenger car instead of direct measurement by using a conventional inspection car. Using a System …
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Modelling rail freight management.
Thesis: Ph. D., Massachusetts Institute of Technology, Sloan School of Management, 1978
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The Influence of Wheel-Rail Contact Forces on The Formation of Rail Shells
Made available in DSpace on 2014-12-10T22:21:38Z (GMT). No. of bitstreams: 1 7121177.pdf: 3858784 bytes, checksum: 634993734117af2b287810b920041c7b (MD5) Previous issue date: 1971
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Passenger rail in Cape Town: exploring institutional forms for a more effective rail service
In South Africa, passenger rail services are currently in a painfully poor state. This disproportionately affects the poor who have to rely on more expensive alternative transport options, and as a result of unjust apartheid planning of the past, typically live the furthest away from economic …
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The deregulation of the U.S. rail industry : efficiency and equity in attaining rail viability
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Economics, 1990.
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Mathematical modeling of rail gun
… conductivity at the interfaces between the rails and the armature of a rail gun are critical issues. This thesis, using finite element method, estimates the former by solving the proper multiphysics governing equations, along with exploiting the contact theory between flat surfaces. A …
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Niobium in Microalloyed Rail Steels
Rail steels rely primarily on possessing adequate wear and rolling contact fatigue resistance. These properties, together with the toughness, can in principle be optimized by implementing thermomechanical processing assisted by controlled niobium additions. The purpose of the current work is to …
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Fatigue properties of rail steels
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1983.
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Condition-based maintenance applied to rail freight car components : the case of rail car trucks
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
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Data-driven prediction of rail neutral temperature for continuously welded rails using rail vibration resonance frequencies
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01
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Intercity passenger rail productivity in the Northeast Corridor : implications for the future of high-speed Rail
… about the future implementation of high-speed rail (HSR) in the Northeast Corridor (NEC) is full of questions on the feasibility of HSR and the ability of Amtrak to implement it. Indeed, the introduction of the Acela Express in the past decade was not free from operating problems, but even with …
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Hysteresis and urban rail : the effects of past urban rail on current residential and travel choices
… the effects of one of these assets, urban rail, on residential location and travel behavior, from the era of horsecars and streetcars to the present in Boston. It explores the hysteretical effects of past access to rail--the extent to which the urban system retains the impacts of rail even …
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Combination rail-highway freight carrying units
Thesis: B.S., Massachusetts Institute of Technology, Department of Civil and Sanitary Engineering, 1943
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Reliability-based optimization of rail inspection
… to optimize inspection/repair intervention in rail defect management. Rail defect management is important for track maintenance, since rails are the most significant and basic component of the track systems. Rail inspection is a fundamental intervention to prevent rail failure. Railroads have …
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