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 464 for “"trains"”.
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Fire development in passenger trains
… understanding of fire behaviour in passenger trains and evaluate existing design fire estimation methods applied to passenger trains.
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Fire modelling of passenger trains
ENGLISH ABSTRACT: Train fires continue to pose a significant threat both internationally and in South Africa, particularly with the increasing prevalence of emerging hazards such as lithium-ion battery devices carried by passengers. With the introduction of the new X’Trapolis Mega fleet, it is …
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Ablation of Steel by Microsecond Pulse Trains
Laser micromachining is an important material processing technique used in industry and medicine to produce parts with high precision. Control of the material removal process is imperative to obtain the desired part with minimal thermal damage to the surrounding material. Longer pulsed lasers, with …
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Tolstoy and Zola: Trains and Missed Connections
… any, is the relationship between the advent of trains and the evolution of the novel during the late nineteenth century? Motion parallax triggers in a traveller the sensation of going backward even though one is travelling forward. This cognitive dissonance relates to Tolstoy's and Zola's …
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Improvement of a pantograph for high-speed trains
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1980.
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Manipulations of spike trains and their impact on synchrony analysis
… of spike sorting errors on correlated spike trains by corrupting them with realistic failures, and studied the corresponding impact on correlation analysis. The results show that correlations between multiple parallel spike trains are severely affected by spike sorting, especially by …
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Talking Trains, Planes and Automobiles: Machine Anthropomorphism in Children’s Fiction
Machine anthropomorphism is the reification of technology in representation, giving machines human features, qualities, and motivations. This study aims to investigate the origins and functions of machine anthropomorphism and the impact that it has on readers in a technic society as part of an …
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Optimizing block configuration and operation protocol for extra-long trains
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Experimental evaluation of retroreflective markings on trains and grade crossings
… crossings due to motor vehicles colliding with trains. Furthermore, a large majority of these accidents take place at night in rural areas. One proposed solution to prevent such accidents involves mounting retroreflective material on the sides of trains so that a vehicle's headlights will …
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Performance of Fouled Railroad Superstructure Subjected to Traversing Heavy Haul Trains
… railroad substructure due to cumulative plastic strains, which lead to surface deviation of the railroad tracks. Correspondingly, railroad maintenance is necessary to sustain track geometry alignment and to prevent deterioration of the sub-structure over time, which can increase operating costs …
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ANALYSIS AND SIMULATION OF THE PNEUMATIC BRAKING SYSTEM OF FREIGHT TRAINS
… 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 signal) …
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Preview information in locomotive in-cab displays for high-speed trains
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Modeling and dynamics of pantograph/catenary systems for high speed trains
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1983.
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Estimating light edge velocity based on retinal ganglion cell spike trains
This thesis is intended to present a specific sub-problem of a larger one we call the 'Inverse Problem'. We wish to estimate the velocity (speed and direction) of an edge of light which is moving on the photoreceptor layer of a rabbit retinal patch. We make these estimates based solely on the …
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Quantics Tensor Trains: The Study of a Continuous Lattice Model and Beyond
… centers around the XY model. Quantics tensor trains are used to describe the transfer matrix of the model and compute one and two-dimensional quantities. The one dimensional magnitudes are compared to analytical results with an agreement close to machine precision. As for two dimensions, the …
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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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Planes, trains, and automobiles--the San Juan International Airport : designing for intermodal access
This thesis explores how intermodal transportation centers may be designed so that balances may be incorporated between efficient modal connections and functionality, and basic human needs and comforts. The term "intermodal" has become part of today's vocabulary, referring to the intersection of …
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Localization and tracking of high-speed trains using compressed sensing based 5G localization algorithms
… for the localization and tracking of High Speed Trains. These methods tend to perform poorly under certain conditions. Localization using 5G infrastructure has been considered as an alternative solution for the positioning of trains in previous studies. However, these studies only consider …
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Stability Analysis and Control Methods to Mitigate Low-Frequency Oscillation in High-Speed Trains
Esta tesis está dirigida al modelado, análisis y comprensión del fenómeno de oscilación de baja frecuencia (LFO) en sistemas ferroviarios alimentados por catenaria. Las herramientas desarrolladas y utilizadas en este trabajo incluyen: análisis en el do-minio de la frecuencia, identificación de …
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