Artigos de Revista
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Rehabilitation of a large sewer: Methodology for the Alcântara interceptor sewer
Proactive rehabilitation of sewer systems is increasingly relevant for assetmanagers. Large interceptor sewers pose specific problems since both their failure and theirrehabilitation often result in severe economic impacts for the responsible authority.Furthermore, often full inspection using CCTV is not feasible. Thus, a methodology todefine a rehabilitation strategy should include a combination of personal inspection withanalysis tools for evaluation of the condition throughout the infrastructure. Early detection ofcritical situations is essential to reduce the overall risk. Factors influencing the structuraldeterioration of specific situations should be considered. Design conditions, constructionquality, sewer material, surface use, external loading conditions, ground disturbances,hydraulic behaviour, maintenance practices, sewage characteristics and age of sewer arefactors that have to be considered.The case of the combined sewer interceptor of the Alca
Ano: 2009
Número Páginas:
13p.
Autor(es): Almeida, M. C.; Fernandes, F.; Charneca, N.; David, M. C.
Editor: IWA Publishing
Keywords: Risk management; Rehabilitation; Large sewer; Geographic information system; Combined sewer system
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Relações de Haskind na interacção de vários corpos flutuantes com ondas
N/A
Ano: 2009
Número Páginas:
formato electrónico.
Autor(es): Santos, J. A.
Keywords: Wamit; Modelo numérico; Navio
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Reparação de fendas de secagem em estruturas de madeira
Falou-se anteriormente (cm30) nos fenómenosque presidem ao desenvolvimento de fendas de secagem na madeira aplicada em obra, sua importância e avaliação, com destaquepara as respectivas consequências em termos de resistência mecânica e durabilidade das estruturas.Procurou-se alertar para o facto de a abertura de fendas de secagem na madeira ser, até certo ponto, um fenómeno natural e incontornável, devendo haver algum cuidado no julgamento da importância das fendas e procurando distinguir as situações aceitáveis do ponto de vista da segurança estrutural daquelas que requerem efectivamente uma intervenção pronta e cuidadosa.A reparação de fendas pode ser feita por diversosmeios, dependendo da sua expressão e gravidade, condições de exposição da estruturae acesso para a reparação e, naturalmente, do efeito pretendido.Nunca é demais salientar a enorme diferença entre ocultar uma fenda e repará-la efectivamente.A simples ocultação com betumes
Ano: 2009
Número Páginas:
42-43pp.
Autor(es): Cruz, H.; Real, L. P.
Editor: PUBLINDÚSTRIA, LDA.
Volume:
nº 32.
Keywords: Fendas de secagem; Reparação; Reparação de fendas
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Reply to discussion of
N/A
Ano: 2009
Número Páginas:
527.
Autor(es): Pinheiro, A.; Melo, J.
Editor: National Research Council Canada
Volume:
Canadian Journal of Civil Engineering.
DOI:
DOI: 10.1139/L08-142
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Report: Global developments of strategic asset management
This paper aims at giving an overview of the global development of strategicasset management (SAM) of water and wastewater infrastructures. It discusses a number ofexamples of national and regional asset management approaches and applications. Theneed for tools, research and global cooperation to support the further development and use ofSAM in the water sector is described.
Ano: 2009
Número Páginas:
17p.
Autor(es): Schulting, F. L.; Alegre, H.
Editor: IWA Publishing
Keywords: Water and wastewater infrastructure; Strategic asset management; Research and development; Gloval development and global approaches
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Report: Target definition and assessment of performance in water services
This report explains the reasons why performance assessment is afundamental pillar of strategic asset management. It introduces some key concepts relatedto performance assessment systems (PAS), explains the fundamentals for the definition oftarget values and the implementation of performance assessment measures. It justifies whyutilities performance systems are also very important for the other stakeholders. It presents abrief state-of-the-art on the subject, and provides a view on the current shortcomings,challenges and future trends.
Ano: 2009
Número Páginas:
17p.
Autor(es): Baptista, J. M.; Alegre, H.
Editor: IWA Publishing
Keywords: Performance targets; Performance assessment; Infrastructure asset management
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Reportagem sobre a sessão e visita
N/A
Ano: 2009
Número Páginas:
9 p.
Autor(es): Baptista Coelho, A.
Keywords: Sociedades de reabilitação urbana; Reabilitação urbana e habitacional
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Revestimentos de isolamento térmico de fachada: Eficiência, durabilidade e comprovação de qualidade
N/A
Ano: 2009
Número Páginas:
12-18pp.
Autor(es): Veiga, M. R.; Pina dos Santos, C.
Editor: Construção Magazine
Volume:
32.
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Securing the iRODS Metadata Catalog for Digital Preservation
Digital preservation is the ability to retrieve, access, and use digitalobjects through time, while ensuring the authenticity and integrity properties ofthese objects. Data grids represent a model of storage systems designed for datamanagement and sharing, which concept also has been proposed for digitalpreservation. However, since data grids are not specifically designed for thispurpose, they present weaknesses that have to be handled. This poster willpresent a set of services to address a problem in the metadata catalog of theiRODS data grid, strengthening that platform for digital preservation purposes.
Ano: 2009
Autor(es): Antunes, G. J.; Barateiro, J.
Editor: Springer
Keywords: Data grids; Digital preservation; Digital libraries
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Sediment transport in the coastal zone: an intercomparison between numerical estimates and field measurements
A one-dimensional vertical (1-DV) numerical model that predicts mean sediment transport rates has been recently updated with state-of-the-art methods and tested against available field observations. Model calibration has been done through a comparison analysis between formulations regarding three main parameters: bed roughness, reference concentration and sediment vertical mixing coefficient. The objective was to find the optimal combination of formulae based on the agreement of the model results with field data. Though important discrepancies were found between different predictors, with differences reaching, in some cases, two orders of magnitude, the best combinations of predictors allowed a very good agreement between model predictions and observations.
Ano: 2009
Número Páginas:
pp. 986-990.
Autor(es): Larangeiro, S. H. D. C.; Taborda, R.; Oliveira, F. S. B. F.
Editor: Journal of Coastal Research
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