Bus Network
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. The orientation and mobility of visual impaired people in bus and subway networks in Brazil
Resumo Orientação espacial depende tanto da informação contida no ambiente quanto da capacidade do indivíduo em perceber e lidar com essa informação. Para poder entender um sistema de transporte público urbano e mover-se de forma independente de um lugar para outro, esse serviço deve fornecer informações acessíveis aos usuários, para que esses p
Ambient. constr.. Publicado em: 2019-03
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2. Analysis of expansions of a bus transit network considering the needs identified by the community: case study
Abstract Expansion analyses are performed on a bus transit network in the City of Laramie area in Wyoming. Expansion analysis is based on the needs identified by the bus transportation agency and the community. This paper examines the expansions, operations and sustainability of a bus transit in a small city having a population of 30,000 people. When funding
J. Transp. Lit.. Publicado em: 2015-04
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3. A robustez de um sistema de distribuição e a alocação de medidores de qualidade da energia elétrica frente aos afundamentos de tensão / The robustness of a distribution system and an allocation of power quality monitors in the face of the voltage sags
This dissertation aims to initially reintroduce and spread the Fault Positions Method (FPM) as an analytic means to determine the remaining voltage in all bus bar constituents of a Distribution System (DS), upon the occurrence of voltage sags. By applying this method, it is possible to formulate the during fault voltage matrix, thus denoting the influence an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
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4. Reconfiguração e Alocação Ótima de Geração Distribuída em Sistemas de Energia Elétrica / OPTIMAL RECONFIGURATION AND DISTRIBUTED GENERATION ALLOCATION IN ELECTRIC POWER SYSTEMS
This work presents a methodology for optimal reconfiguration and optimal distributed generation allocation aiming to minimize technical energy losses in electric power distribution systems. The proposed methodology includes two step by step heuristic algorithms, based on sensitivity indexes, one for the reconfiguration and the other for the distributed gener
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/09/2011
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5. Reconfiguração de redes de distribuição de energia elétrica usando algoritmo genético multiobjetivo
In this work, the reconfiguration of electrical energy distribution systems is studied by using a multi-objective genectic algorithm. Three objective functions are considered here: monetary costs of the network(installation, maintenance and energy losses), costs involved in the reability of the system and number of lines switching used for the reconfiguratio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2011
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6. A topological approach to the identification of critical measurements in power-system state estimation
This paper presents a new topological methodology for critical measurements identification in observable networks. A measurement is said to be critical, in an observability sense, if its removal from the measurement set makes the associated system lose observability. The proposed methodology is based on the properties of both, observable measurement subnetwo
Publicado em: 2011
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7. Operações de serviços de pós-venda baseadas em conhecimento: o caso Carrier Transicold Brasil
The performance of technical assistance depends on how information and knowledge are disseminated to a network of services. This work was developed with the aim of identifying how the operations of after-sales service can generate competitive categories for a technical assistance network based on quality management and knowledge. This case study included par
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/08/2010
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8. Análise comparativa do conflito entre o sistema de transporte público urbano e as necessidades de desclocamento da população da cidade de Samambaia
The disordered urbanization process of Brazilian cities provoked several land occupation issues, deterioration of the environment poor quality of life and frequent transportation and traffic problems. The growing use of private individual transportation means, mainly cars and the continuous decadence and inefficiency of Public Urban Transportation (TPU). Dup
Publicado em: 2010
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9. Transport and circulation in the reproduction urban spatial: considerations on the subway of Rio de Janeiro / Transporte e circulação na reprodução espacial urbana: considerações sobre o metrô do Rio de Janeiro
This study aims to analyse the role performed by transports in the process of reproduction of the urban space, searching the comprehension of the relation between the enviroment built in the city and its scheme of circulation, resulting in a space of circulation in which the effectiveness is possible through a system of transport for this purpose developed.
Publicado em: 2010
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10. AVALIAÇÃO E REFORÇO DAS CONDIÇÕES DE ESTABILIDADE DE TENSÃO EM BARRAS DE TENSÃO CONTROLADA POR GERADORES E COMPENSADORES SÍNCRONOS / VOLTAGE STABILITY ASSESSMENT AND ENHANCEMENT IN VOLTAGE-CONTROLLED BUSES BY SYNCHRONOUS GENERATORS AND COMPENSATORS
After the incidence of some voltage collapses in the energy transmission systems in the world, the voltage security became an issue of great interest in the last years due to the importance of its impact. The phenomenon of voltage stability is due to the excessive active and reactive power flow in the electrical transmission network and has been associated w
Publicado em: 2009
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11. Estabilização de oscilações de potencia de linhas de intercambio atraves de um elo de corrente continua / Stabilization of power lines interchange oscillations through a direct-current link
When an interconnected alternate-current power system suffers variations of loads, its frequency can exhibit an oscillatory behavior. If this system possesses a direct-current link in parallel with the inter-tie lines, this effect could be decreased, due to the link current controller action. This work presents a study that evaluates the efficiency of DC lin
Publicado em: 2009
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12. Um estudo de planejamento da expansão da transmissão em sistemas de potência considerando a incerteza
This work presents the development of a model for long term transmission expansion planning, which considers the system security (N-1 criterion), the cost of congestion, the impact of new facilities in system operation and the risk associated to demand growth uncertainty. It is proposed in the planning methodology the usage of load curtailment tolerance rela
Publicado em: 2009