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 299 for “"buses"”.
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Modelamiento del fenómeno apelotonamiento de buses
El apelotonamiento de Buses (caso extremo de irregularidad de intervalo entre buses consecutivos) es un fenómeno conocido y relevante para operadores, usuarios y reguladores de servicios de buses de alta frecuencia. El efecto de este fenómeno es tal que los buses tienden a agruparse en dos o más, …
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Communication-Inspired Design of on -Chip Buses
We mitigate the effects of intersymbol interference by employing a variable threshold inverter as an equalizer and operate the bus at rates beyond the rate governed by RC delay of the interconnect. We demonstrate even higher speeds by combining equalization with crosstalk avoidance coding. …
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Energy use analysis and technology for electric transit buses
… flow for such electric vehicles, particularly buses. Battery systems and charger technology, core to the vehicle operations, are examined; looking at energy flow from plug to wheels. Field data collected from on-board recordings and simultaneous Global Positioning System (GPS) signals were used …
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Diesel particulate matter quantification and reduction strategies for school buses
<p>This thesis evaluated the contributions of school bus self pollution from both the crankcase and the tailpipe emissions to in-cabin levels of fine and ultrafine particulate matter, and determined the effectiveness of commercially available retrofit technologies towards reducing levels of …
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Intrusion Detection System for Electronic Communication Buses: A New Approach
With technology and computers becoming more and more sophisticated and readily available, cars have followed suit by integrating more and more microcontrollers to handle tasks ranging from controlling the radio to the brakes and steering. Handling all of these separate processors is a communication …
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Modeling and design of DC power buses in high-speed digital circuit designs
<p>“The concept of partial elements with normalized potential coefficients is developed for general media. A circuit extraction approach based on a mixed-potential integral equation formulation (CEMPIE) is further developed based on partial elements with normalized potential coefficients, to …
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Worst case voltage drops in power and ground buses of CMOS VLSI circuits
Currents flowing in the power and ground (P&G) buses of CMOS digital circuits affect both circuit reliability and performance by causing excessive voltage drops. Excessive voltage drops manifest themselves as glitches on the P&G buses and cause erroneous logic signals and degradation in switching …
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Implementation of delay and power reduction in deep sub-micron buses using coding
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Video monitoring devices on school buses: are they effective in reducing behavioral problems?
… of student misbehavior on middle school buses. It was hypothesized that the presence of VMDs would decrease the frequency of behavioral problems encountered by school bus drivers, decrease the number of discipline referrals issued by the drivers, and improve the drivers’ perception of …
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Coping With Delays And Hazards In Buses And Random Logic In Deep Sub-Micron
… shown how to generalize the technique for wide buses. In this work the efficiency of the detection mechanism is evaluated for both single and multiple faulty occurrences. A novel circuit to treat crosstalk induced glitches on local interconnects is presented. Design irregularities and …
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Development and Validation of a Powertrain Simulation Model for Next Generation Mild-Hybrid Buses
… and simulation for next-generation mild hybrid buses. The problem area of focus for the work is in the design and development of a novel mild-hybrid parallel passenger bus architecture. Many unknowns arise from the study of this type of vehicle, in particular the difficulty in controlling and …
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Impacts of Automated Buses on Travel Mode Preference for Different Income Groups and Density Areas
… literature has demonstrated that using automated buses (ABs) as part of public transit systems shows greater potential for mobility equity and sustainability than single-occupancy AVs. Despite the growing use of automation in the public transit industry, less interest has been given to research on …
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Bus on Shoulder: Local Assessment of Shoulder Transit Lane for Regional Buses in San Luis Obispo County
The study looks at the applicability of integrating a Bus Only Shoulder (BOS) into the intermittently congested segment of US 101 in southern San Luis Obispo County. Policy, infrastructure and implementing criteria derived from case studies in Minnesota, Florida and California (San Diego) and the …
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Greenride herramienta tecnológica para la gestión del mantenimiento predictivo de emisiones en buses diésel en la terminal Salitre
… para la gestión del mantenimiento predictivo en buses diésel que operan en la Terminal de Transporte Salitre, con el fin de reducir sus emisiones contaminantes y mejorar la eficiencia operativa. Esta iniciativa surge como respuesta al grave problema de calidad del aire en Bogotá, especialmente en …
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A Quantification Analysis on Potential Use of Recuperated Regenerative Braking Energy from NYCT Subways into Charging Electric Buses
… NYCT & MTA Bus have a joint fleet of 5700+ buses providing transportation services to the city by continuously operating on 238 local, 13 select bus service and 74 express bus routes within the five boroughs. Currently, this huge fleet has a combination of Compressed Natural Gas (CNG) buses, …
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Análisis de la percepción de la equidad interna del sistema de remuneraciones de los conductores de la empresa Buses Hualpén
En los últimos años, el transporte privado de pasajeros ha ido cobrando cada vez mayor importancia en Chile. La entrada del Transantiago, dio paso a que las empresas privilegiaran este medio de transporte, para trasladar su personal a las distintas empresas del gran Santiago, y ello su suma a gran …
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The effects of drive cycle accessory load and degree of hybridization on fuel economy and emissions for hybrid electric buses
Hybrid Electric Vehicles (HEVs) have gained much attention in recent years. This is mainly due to rising fuel prices and increasing environmental awareness. By implementing electricity as one of the power sources, a HEV can not only reduce fuel consumption but can also decrease tailpipe emissions. …
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Characterization, Speciation, and Source Apportionment of Particles inside and from the Exhaust of Public Transit Buses Fueled With Alternative Fuels
… and elemental carbon (EC) for public transit buses in Toledo, Ohio. The carbon source profile for both alternative fuels for eight carbon fractions is developed through real time experiments. The results indicated that the use of BD instead of ULSD is environmentally sustainable for human …
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Anteproyecto arquitectónico para viviendas y comercio en el terreno de la Ex - terminal de buses de Oriente, municipio de San Salvador
… en altura en el terreno de la Ex -terminal de buses de oriente y una pequeña área de desarrollo comercial, tomando en cuenta muchos aspectos como el económico, el social e histórico para poder tener una perspectiva global del desarrollo habitacional y comercial en la zona estudiada. Se presenta …
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