Railway Capacity
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. EVALUATION OF SUBLETHAL EFFECTS OF Ipomoea cairica LINN. EXTRACT ON LIFE HISTORY TRAITS OF DENGUE VECTORS
Plant derived insecticides have considerable potential for mosquito control because these products are safer than conventional insecticides. This study aimed to investigate sublethal activities of Ipomoea carica or railway creeper crude acethonilic extract against life history trait of dengue vectors, Aedes albopictus and Aedes aegypti. The late third instar
Rev. Inst. Med. trop. S. Paulo. Publicado em: 24/05/2016
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2. Método expedito de análise de novos traçados de ferrovias para o transporte de cargas / Method expeditious of analysis of new routes of railway for freight transportation
Os investimentos no setor ferroviário brasileiro desde o processo de privatização das ferrovias trouxeram um expressivo crescimento ao setor, evidenciado principalmente pelo aumento do volume de cargas transportadas. Entretanto, a capacidade de processamento dos trens tem sido comprometida pela imposição de limites operacionais de velocidades, decorrent
Publicado em: 2011
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3. Proposta de um modelo de capacidade de processamento de trens cargueiros em redes ferroviárias de linha singela / Proposal of a freight trains processing capacity model on single line railway networks
O aumento da produtividade das ferrovias, observado no período pós-concessão da operação à iniciativa privada, é decorrente da utilização de composições com grandes comprimentos e elevadas cargas por eixo, aplicação de tecnologias para o gerenciamento do sistema e investimentos na infra-estrutura. Entretanto, a intensificação do tráfego na ma
Publicado em: 2010
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4. Study of mixers fertilizers plants localization in brazilian Center-West region using a linear programming model / Estudo de localização de fábricas misturadoras de adubo na região Centro-Oeste brasileira utilizando um modelo de programação linear
Currently, the brazilian agribusiness is responsible for about 37% of the national PIB and face up to two of the great challenges in its constant growth which are the high dependence of chemical products (fertilizers) to expand its agricultural frontier and consequently, the distance (and transports costs) that this frontiers impose to be overcome, as much f
Publicado em: 2009
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5. Analise parametrica da estabilidade de plataformas ferroviarias degradadas / Parametric evaluation of degraded railway subgrade stability
This study deals with an evaluation of subgrade capacity by determining the circular rupture stability risk of a slope adjacent to a railway yard track subject the tensions of a loaded gondola car parked in this track. The Eisenmann method is applied for determination of tensions at the railway subgrade and the tensions are calculated by means Carothers-Terz
Publicado em: 2007
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6. MODELOS E ALGORITMOS PARA ANÁLISE DE CONGESTIONAMENTO E DETERMINAÇÃO DE PARADAS NA LOGÍSTICA FERROVIÁRIA / MODELS AND ALGORITHMS FOR CONGESTION ANALYSIS AND YARD USE DETERMINATION IN RAILWAY LOGISTICS
Planning in Railway Logistic is an activity with growing importance. This is due to the high costs of investment to increase the railway capacity. Nevertheless, planning in this context is a cumbersome task, since a precise representation is necessary to consider most relevant points in this activity. Mathematical programming is becoming one of the best ways
Publicado em: 2007
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7. The Brazilian railroads and the recent expansion to the Center-West Region of Brazil / As ferrovias brasileiras e a expansão recente para o centro-oeste
This research is intended to investigate and discuss the expansion of the transportation projects in the Center-West Region of Brazil and its relation with the process of agricultural expansion. The research was made through consultations to specialized magazines, and texts on economic research. Brazil shows serious problems of infrastructure, that harms its
Publicado em: 2007
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8. Contribuição à análise da capacidade de processamento de trens cargueiros em linhas ferroviárias singelas no Brasil / Contribution to analysis of process capacity of cargo trains on single track railroad line in Brazil
The expessive growth of the railway sector due to the privatization of the operations since 1996, is increasing the participation of this mode in the brazilian transport matrix. However, this growth is obtained mainly from the replacement and increase of the rolling stock and the modernization of the traffic control system, and will soon reach some important
Publicado em: 2006
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9. A study about intermodal terminals to solid bulk cargo. / Um estudo sobre terminais intermodais para granéis sólidos.
This thesis is related to the implementation of suitable intermodal terminals for solid bulk cargo with the purpose of increasing the inland waterway participation in the country transportation matrix . Firstly, it is presented a general view of the modal transportation distribution, mainly based on the highway modal, in which the deficiency of the existing
Publicado em: 2003