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Análise comparativa da sinistralidade rodoviária e de outros indicadores sócio-económicos em países da CPLP
No full textNuma ótica de saúde pública, os acidentes rodoviários são a oitava causa de morte no mundo, correspondendo-lhes 95% dos anos de vida saudável perdidos devido ao transporte rodoviário. Numa perspetiva mais lata, a segurança rodoviária está relacionada com quase todos os aspetos da vida atual, sendo o objeto de duas das metas definidas pela Organização das Nações Unidas para prossecução do desenvolvimento sustentável no Mundo.
Na presente comunicação resumem-se os resultados de uma comparação de indicadores relacionados com a segurança rodoviária e com características socioeconómicas dos países lusófonos, tendo em vista promover a discussão internacional acerca deste tema e evidenciar o interesse da investigação neste domínio, aproveitando oportunidades de financiamento internacional recentemente abertas.10pDT/NPT
Determination of extreme sea levels along the Iberian Atlantic Coast
No full textResumo:
Extreme sea levels along the Atlantic Iberian coast are determined through the
development and application of a numerical model for tides and surges, followed
by a statistical analysis of the model results. A recent statistical method is
assessed using 131 years of data from the Brest tide gauge, and the number of
years of data required for an accurate statistical analysis is estimated. The
statistical method is extended to consider tide–surge interactions, but they are
shown to be small in the study region. The model covers a large portion of the
NE Atlantic, with a 250 m resolution in the Portuguese shelf. In the Iberian
shelf, root mean square errors of tides are of the order of 5 cm, and extreme
sea levels are underestimated by about 10 cm. Differences between sea level
statistics obtained from model output and observations are of the order of 5 cm
in the study region. Simulation of tides and surges between 1980 and 2010,
followed by a statistical analysis of the results, provide the extreme levels
along the Iberian Atlantic coast for different return periods. Results reveal
the increase of extreme sea levels from south to north and the importance of
local effects.471-482pp111DHA/NECOcean Engineerin
Numerical modeling of extreme events in the Tagus estuary
No full textThe risk of submersion of estuarine and coastal margins is increasing. The hazard is growing due to sea
level rise, declining natural protection associated to coastal erosion and, in some areas, higher storminess.
Simultaneously, vulnerability is rising due to the migration of human activities towards the coast. This
trend fuels our need to better quantify the hazards and understand their sources.
The inundation extent in coastal areas can be determined with numerical models, and two alternative
approaches are followed. The first involves simulating past extreme events (Method A). Provided the
model is adequately validated, this approach can complement field surveys, provide insight into the
importance of different processes, determine the impact that previous events would have under present
conditions, etc. However, this approach does not provide information on the return period of these events.
In the second alternative, the simulations are preceded by a statistical analysis of the forcing agents, so
each simulation is associated to a known return period (Method B). The drawback of this approach is the
simplification of the forcings, which may introduce errors difficult to quantify. This paper describes an
ongoing modeling analysis to understand and characterize inundation in the Tagus estuary. We aim at: 1)
comparing the two approaches outlined above; 2) understanding the importance of different drivers; 3)
determining the inundation extent of past events with present mean sea level and bathymetry. Method A is
based on the analysis of newspaper records that indicated three major events: the storm of February 1941,
the event of January 1996 and the Xynthia storm in 2010. Method B is based on a statistical analysis of
water levels at Cascais.37-38ppDHA/NE
Ouro sobre o azul(ejo)
No full textIn documents from the 16th and 17th centuries we can read sometimes the expression “golden azulejos”. This is a matter that azulejo historians never fully studied but which raises interesting questions. Sometimes this expression could be related to azulejos in the “lusterware” technique, a secretive and complex process which allowed the ceramic surfaces to be decorated with gold and copper metallic shine.
Another possibility to interpret the expression “golden azulejos” is related with a form of decoration used from the late 16th to the early 17th centuries. Sometimes the glazed surface of azulejos was painted with an oil-based golden paint, presumably over white tiles or over compositions of “enxaquetado” (chequered compositions) of several colours. Examples of these decorations are rare today due to the fraility of the process.
With this presentation we aim to present two processes of decorations of azulejos in Portugal that remain almost ignored but in their time could return a quite staggering effect.317-322pp.Trabalho realizado no enquadramento da cooperação entre o Museu Nacional do Azulejo e o Laboratório Nacional de Engenharia Civil cuja participação se realiza ao abrigo do Projeto 0202/111/19014 (IPERION-CH.pt)DM/NBPCProceedings of the International Conference Glazed Ceramics in Architectural Heritage (GlazeArch 2015
O Forte de Nossa Sra. da Graça (Elvas). Bases para uma intervenção - a caracterização dos materiais
No full textO Forte de Nossa Senhora da Graça, também denominado como Forte Conde de Lippe, é considerado uma obra única e uma obra-prima da arquitetura militar europeia do século XVIII. Classificado como Património Nacional e como Património Mundial, pela UNESCO desde 2012, situa-se a norte da cidade de Elvas.
No âmbito da sua nomeação pela UNESCO, em conjunto com as restantes fortificações de Elvas, como Património Mundial, foi implementado um plano de conservação e restauro do Forte para o desenvolvimento de atividades culturais, que envolve, entre outras ações, uma caracterização detalhada dos materiais empregues na sua construção, nomeadamente argamassas e estuques.
Na presente comunicação refere-se a metodologia adotada para a caracterização e avalia-ção do estado de conservação das argamassas de reboco, apresentam-se os ensaios efetua-dos e interpretam-se os seus resultados. Com base nesses resultados e respetiva análise, concluiu-se que as argamassas são na sua grande maioria de cal aérea dolomítica. Este fac-to, aliado à natureza mineralógica da areia, proveniente essencialmente de xistos (abundantes na zona), traduz o emprego de materiais de origem local. As argamassas encontram-se, no geral, em bom estado de conservação, o que evidencia o cuidado na boa escolha de materiais e de execução na construção do Forte.930-936pp.Os autores agradecem à empresa IN SITU, Conservação de Bens Culturais, Lda. por toda a informação disponibilizada.DM/NMMLivro de Atas da 5ª Conferência sobre Patologia e Reabilitação de Edifícios PATORREB 201
A service-oriented approach to assessing the Infrastructure Value Index
No full textMany national and regional administrations are currently facing challenges to ensure long-term sustainability of urban water services, as infrastructures continue to accumulate alarming levels of deferred maintenance and rehabilitation.
The Infrastructure Value Index (IVI) has proven to be an effective tool to support long-term planning, in particular by facilitating the ability to communicate and to create awareness. It is given by the ratio between current value of an infrastructure and its replacement cost. Current value is commonly estimated according to an asset-oriented approach, which is based on the concept of useful life of individual components. The standard values assumed for the useful lives can vary significantly, which leads to valuations that are just as different. Furthermore, with water companies increasingly focused on the customer, effective service-centric asset management is essential now more than ever.
This paper shows results of on-going research work, which aims to explore a service-oriented approach for assessing the IVI. The paper presents the fundamentals underlying this approach, discusses and compares results obtained from both perspectives and points to challenges that still need to be addressed8pComunicação apresentada na conferência LESAM 2015, IWA, Yokohama, Japan, 17-19 NovembroDHA/NE
No caminho do Oriente... um catálogo da produção de azulejos da Fábrica Roseira circa 1870
No full textIn the second half of the nineteenth century the Roseira factory in Lisbon was one of the most important manufacturers of façade tiles used both in Portugal and in Brazil. “Casa das Bolas”, a condominium building in Lisbon informally named after the glazed tiles decorated with spherical elements in trompe l'oeil of its ground-floor façade, was owned by a member of the Roseira family who erected it using parts of an earlier construction in 1871-72. In its interior can be seen an authentic showcase of patterns produced by the factory and applied in apparently random order under the inside of the window sills and in some service areas. The singularities of this application, associated with the high number of patterns therein (over 50), make it an important reference for the study of façade tiles in the first decades of their use. It is an invaluable source of information about a factory that was possibly the first to produce façade tiles in Lisbon and despite having supplied many of the tiles seen at the Royal Pena Palace in Sintra and at other important constructions of the time, such as the Beau Séjour Palace in Lisbon, remains almost unknown.81-90pp.Trabalho realizado ao abrigo do projecto 0202/111/19014 (infraestrutura de investigação IPERION-CH.pt). Summary in English; full text in PortugueseVolume únicoDM/NBPCProceedings of the International Conference Glazed Ceramics in Architectural Heritage (GlazeArch 2015
The effect of wave-current interactions on the sediment dynamics in the Óbidos Lagoon
No full textThe combined effect of waves and currents plays a major role on the sediment dynamics of wavedominated
inlets. When waves are propagating toward the lagoon, the ebb-currents can partially or totally
block the wave motion. Besides analysing the wave blocking phenomenon in the Albufeira lagoon, Dodet
et al. (2013) showed that the interaction between waves and currents will increase the sediment transport
towards the lagoon during the flood. This study aims at verifying these phenomena in a different scenario
through an idealized test case with a constant in space and time wave spectrum.65-66ppDHA/NE
Coastal risk forecast system
No full textRunnup and overtopping are the two main sea wave originated events that threat coastal structures. These
events may cause destruction of property and the environment, and endanger people. To build early warning forecast systems, we must take into account the consequence and risk characterization of the events in the affected area, and understand how these two types of spatial information integrate with sensor data sources and the risk determination methodology. In this paper we present the description and relationship between consequence and risk maps, their role on the risk calculation, and how the HIDRALERTA project integrates both aspects into its risk methodology. We present a case study for Praia da Vitória port, in Azores Portugal.201-209pp.DHA/NP
Water systems design impact on utilities efficient management – Long term planning in a multi-utility Group
No full textWater utilities in different countries are facing challenges in how to manage effectively their global operations. Being a capital intensive activity, the way how to design the infrastructures is an important topic and an efficient cost-effectively management is crucial in order to provide a safe and reliable service to final users. Aligned with these challenges decision-makers have to deal with an infrastructure with indefinite lives where a proper decision regarding the implementation of a solution today will always have a long term effect. In this process it’s important to understand the impact that standards and/or design codes can have on systems’ performance. These concerns are even more important in a Group that manages utilities in different countries with different contexts and regulatory frameworks where standards, such as, design codes can be mandatory or best practices to be followed. This paper aims to describe how design codes can influence performance and operational management practices. The systems’ performance comparison will be presented having as a case study a water distribution system designed under three different countries’ codes and consumption patterns. The results are acknowledged in order to understand their impact under the infrastructure asset management (IAM) policies7 pComunicação apresentada na conferência LESAM 2015, IWA, Yokohama, Japan, 17-19 NovembroDHA/NE