Network Dimensioning
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Study of soils used with subgrade and sub-ballast in Brazilian railways
Abstract Brazil has an extremely limited railroad network compared to other developed and developing countries. There are projects to expand this mesh. Knowing that the cost of implementing a railroad is high, research for solutions that allow cost reduction is of great importance. But the parameters of the materials used in the subgrade and sub-ballast laye
REM - International Engineering Journal. Publicado em: 2022
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2. Development of a Standard of Solarimetric Stations SONDA
Abstract With the increasing of energy demand in Brazil and the unprecedent popular support for the use of energy sources with low environmental impact, the market for photovoltaic energy has become progressively relevant. Thus, it is of strategic importance to gather information of the solar resources either for a particular location or a specific region.
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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3. Estimates of reference evapotranspiration in the municipality of Ariquemes (RO) using neural networks GMDH-type
RESUMO A evapotranspiração de referência é uma variável climatológica de suma importância para o dimensionamento do uso da água nos métodos de irrigação. Neste sentido, com o intuito de contribuir para o entendimento climático de Ariquemes, RO, o estudo tem como objetivo modelar o comportamento da série temporal da evapotranspiração de referê
Rev. bras. eng. agríc. ambient.. Publicado em: 06/05/2019
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4. COST-EFFECTIVE BANDWIDTH PROVISIONING IN MICROWAVE WIRELESS NETWORKS UNDER UNRELIABLE CHANNEL CONDITIONS
ABSTRACT Cost-effective planning and dimensioning of backhaul microwave networks under unreliable channel conditions remains a relatively underexplored area in the literature. In particular, bandwidth assignment requires special attention as the transport capacity of microwave links is prone to variations due to, e.g., weather conditions. In this paper, we f
Pesqui. Oper.. Publicado em: 2017-09
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5. A study on the design of networks in competitive environments / Um estudo sobre o dimensionamento de redes em ambientes competitivos
Esta dissertação propõe um estudo de um novo modelo para o dimensionamento de redes baseadas em comutação de circuitos, tais como as redes óticas roteadas por comprimento de onda. O novo modelo é projetado para dar suporte a diversas estratégias de negócios da operadora em um mercado competitivo. Primeiramente o caso do monopólio é analisado, comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2010
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6. O processo de trabalho na alta complexidade no contexto das políticas de controle do câncer no Brasil / The work process in high complexity in the context of the cancer control policies in Brazil
This dissertation examines at which level the national policies for cancer control in Brazil organize the work process in oncological high complexity, through human resources in health (HRH) - clinical oncologists, radiotherapists and medical physicists - bound to the State oncological high complexity network, from the definitions established by the SAS/MS O
Publicado em: 2010
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7. Automação como recurso de planejamento de redes de distribuição de energia elétrica. / Automation as resource for distribution systems planning.
Concerning the components of an electrical distribution network and their susceptibility to functional failures or need for maintenance actions, planning and project criteria should be adopted to assure continuity of energy supply even though some components may be out of work. Traditionally the power systems, especially in power transmission and distributio
Publicado em: 2008
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8. Dimensioning ad hoc networks : traffic and interference combined / Dimensionamento em redes ad hoc : trafego e interferencia combinados
Ad hoc networks are networks that operate without centralized control, whose nodes communicate through wireless links in a single or multihop way. A complex issue about ad hoc networks is the capacity estimation. The computation of how many transmissions the network can support ensuring a quality of service for its users is a difficult task due to two centra
Publicado em: 2007
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9. Data traffic dimensioning for 1xEV-DO cellular systems. / Dimensionamento de tráfego de rede de dados para sistema celular 1XEV-DO.
Research regarding voice and data dimensioning models applied to Telecommunication Networks. For circuit switched voice networks dimensioning, the Erlang formulas are used. When it comes to newer data networks, a packet based dimensioning is required, and the complexity is significantly increased due to the diversity of applications and its multiple features
Publicado em: 2006
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10. Um estudo algorítmico de problemas logísticos na indústria de petróleo e gás natural / An algorithmic study of logistic problems on petroleum and natural gas industry
This work consists on the study of two important problems arising from the operations of petroleum and natural gas industries. The first problem the pipe dimensioning problem on constrained gas distribution networks consists in finding the least cost combination of diameters from a discrete set of commercially available ones for the pipes of a given gas netw
Publicado em: 2006
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11. Dimensioning of wireless link with voice and data integration / Dimensionamento de enlace sem fio com integração de voz e de dados
The dimensioning of telecommunications network wireless link, with voice and data integration, is presented in this paper. Analysis and synthesis procedures were developed considering Markovian and priority models (with or without preemption). Schemes with or without resources sharing and finite and infinite buffer were considered. The selected models were n
Publicado em: 2005
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12. Projeto e dimensionamento de redes ópticas passivas (PONs) / Project and dimensioning of passive optical networks (PONs)
Redes ópticas passivas são redes de acesso que utilizam fibras ópticas interligadas na topologia estrela e na configuração ponto-multiponto, sendo constituídas apenas por componentes ópticos passivos entre o terminal de linha óptica (optical line terminal - OLT) e a unidade de rede óptica (optical network unit - ONU). Como estratégia de evolução
Publicado em: 2005