http://repositorio.lnec.pt:8080/jspui The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. 2026-05-13T10:42:37Z http://repositorio.lnec.pt:8080/jspui/handle/123456789/1019813 Title: Application of fluorescence spectroscopy for expeditious characterisation of treated wastewater for reuse Authors: Soares, J. Abstract: This dissertation aimed to develop and validate an expeditious methodology, based on fluorescence spectroscopy and PARAFAC analysis, for acquiring and processing EEM from treated wastewater, aiming for a reliable DOM characterisation to support monitoring the quality of water intended for reuse.After validation with public data, the methodology was applied to sample dataset of treated effluent subjected to different doses of chlorine to assess chlorination's impact on the composition of DOM. Methods such as fluorescence regional integration (FRI) and the calculation of fluorescence indices were used to complement the information obtained by PARAFAC. The methodology used proved to be effective since it was possible to identify groups of compounds present in the samples and obtain a profile of the DOM composition, thus enabling the assessment of the impact of chlorination 2025-05-01T00:00:00Z http://repositorio.lnec.pt:8080/jspui/handle/123456789/1019805 Title: Effects of geometry, joint properties, and deterioration scenarios on the hydromechanical response of gravity dams Authors: Braga Farinha, M. L.; Azevedo, N.; Oliveira, S. Abstract: An explicit coupled two-dimensional (2D) hydromechanical model (HMM) that can simulate discontinuous features in the foundation, as well as the effects of grout curtains and drainage systems, is employed to evaluate the influence of key parameters such as dam height, foundation behaviour, joint patterns, joint stiffness and strength, hydraulic apertures, and grout curtain permeability. A parametric sensitive study using four gravity dams, and a real case study of an operating dam are presented. The results presented show that dam height influences the relationship between water level in the reservoir and drain discharges, with higher dams showing more pronounced curved nonlinearity. The strength properties of the concrete–rock interface are also shown to have a meaningful influence on the HM response, especially for an elastic foundation and for higher dams, showing the need to properly characterize this interface through in situ testing. The joint aperture at nominal zero stress is shown to be the parameter with the most significant effect on the HM response. The results also show that a progressive degradation scenario of the concrete–rock interface or of the grout curtain permeability is easier to identify through the hydraulic measurements than in the mechanical displacement field. 2026-01-01T00:00:00Z http://repositorio.lnec.pt:8080/jspui/handle/123456789/1019802 Title: Enhancing Community Resilience Through the Uptake of Innovative Solutions: The C2IMPRESS Approach Authors: Galanopoulou M. I.; Bakogianni, E.; TZEMPELIKOS, D.; Ribas M. M.; Moragues, A.; Estrany, J.; Jiménez, J. D.; Tombul, E.; Cicekci, M.; Temiz, N.; Zózimo, A. C.; Craveiro, J.; Oliveira, M. M.; CRUZ, M.M.; Sfetsos, A. Editors: Dibyendu Sarkar Abstract: This study bridges the existing gaps in quantifying risk and enhancing community defences by applying a cohesive five-pillar risk and resilience framework developed within the C2IMPRESS project. We assessed the anticipated impacts of various C2IMPRESS tools on community resilience across four European case study areas (CSAs): Egaleo (Greece), Mallorca (Spain), Ordu (Turkey), and the Centro Region (Portugal). Methodologically, a targeted survey asked CSA representatives to estimate the expected changes across 42 resilience indicators—encompassing social, institutional, economic, infrastructural, and environmental dimensions—following tool implementation. A public–private-civil partnership (PPCP) framework was also assessed across all sites to enable a comparative analysis. The results indicate that individual vulnerability and emergency preparedness are the most responsive dimensions, exhibiting significant projected improvements alongside institutional capacities and community trust. Conversely, the community economy emerged as the least flexible dimension, exhibiting minimal anticipated change. In conclusion, the C2IMPRESS framework effectively bridges disaster risk reduction and climate adaptation by integrating local knowledge into actionable interventions. However, while social and institutional resilience can be actively enhanced, improving economic resilience requires long-term structural adjustments beyond the scope of these localised tools. 2026-04-04T00:00:00Z http://repositorio.lnec.pt:8080/jspui/handle/123456789/1019798 Title: Resilience assessment insights based on the energy balance in drinking water networks Authors: Carneiro, J.; Loureiro, D.; Cabral , M.; Covas, D. Abstract: The current paper primarily discusses the interconnection between water, energy and resilience, revisits the energy balance, proposes a modified calculation approach and metrics to assess system resilience criteria: energy efficiency and service flexibility. A sensitivity analysis is carried out considering: i) reference elevations, ii) levels of water losses, iii) contribution of shaft energy and pumping groups and iv) impact of water and energy efficiency improvement measures. The modified approach provides a realistic energy balance, while the original approach provides an ideal (no water losses) energy balance. Both approaches provide similar information for surrogate resilience metrics, but offer complementary information for the surplus energy index. Energy in excess per authorised consumption is most suitable to evaluate energy efficiency. Both the ratio between surplus energy and energy in excess and the surplus energy index are complementary in assessing service flexibility. Water and energy efficiency improvements should contribute to energy efficiency, ensuring service flexibility. 2026-04-01T00:00:00Z