http://hdl.handle.net/10174/961 2026-04-05T22:19:02Z 2026-04-05T22:19:02Z Guardiola‑Albert, Carolina Bocanegra, Emília del Carmen Cabrera, María Candela, Lucila Carrera, Jesús Chambel, António Foster, Stephen Jódar, Jorge Herrera, Christian Manzano, Marisol Molinero, Jorge Vázquez‑Suñé, Enric Vilanova, Ester http://hdl.handle.net/10174/39403 2025-10-16T09:50:32Z 2024-09-06T23:00:00Z

Title: Emilio Custodio: a pioneer in groundwater management and key reference for hydrogeologists worldwide Authors: Guardiola‑Albert, Carolina; Bocanegra, Emília; del Carmen Cabrera, María; Candela, Lucila; Carrera, Jesús; Chambel, António; Foster, Stephen; Jódar, Jorge; Herrera, Christian; Manzano, Marisol; Molinero, Jorge; Vázquez‑Suñé, Enric; Vilanova, Ester Abstract: Professor Emilio Custodio is honoured as a crucial figure in modern hydrogeology. His extensive contributions to the field, both in academia and practical applications, have left an indelible mark on water resource management globally. Through his pioneering research, leadership roles, and dedication to education, Professor Custodio has been funda‑ mental in advancing the scientific understanding and ethical governance of groundwater resources. His work continues to inspire and guide hydrogeologists around the world.

2024-09-06T23:00:00Z Martins, António Gouveia, Margarida Cunha, Pedro Cabral, João Gomes, Alberto Falguères, Christophe Falguères Voinchet, Pierre Stokes, Martin Caldeira, Bento Buylaert, Jan-Pieter Murray, Andrew S. Bahain, Jean-Jacques Figueiredo, Silvério http://hdl.handle.net/10174/37956 2025-02-14T11:39:46Z 2025-01-28T00:00:00Z

Title: Marine terrace staircases of western Iberia: Uplift rate patterns from rocky limestone coasts of central Portugal (Cape Raso - Abano beach and Cape Espichel) Authors: Martins, António; Gouveia, Margarida; Cunha, Pedro; Cabral, João; Gomes, Alberto; Falguères, Christophe Falguères; Voinchet, Pierre; Stokes, Martin; Caldeira, Bento; Buylaert, Jan-Pieter; Murray, Andrew S.; Bahain, Jean-Jacques; Figueiredo, Silvério Abstract: The Western Iberian Peninsula is undergoing compressive tectonic reactivation, resulting in spatial and temporal variations of surface uplift. Uplift quantification can be undertaken in coastal settings using staircases of shore platforms developed onto rocky headlands. This study analyses two marine terrace staircases in central Portugal: Cape Raso - Abano beach and Cape Espichel. Geomorphic and stratigraphic analyses identified marine terraces/shore platforms developed below a culminant shore platform, four at Cape Raso and eleven at Cape Espichel. The terrace chronology was obtained by using ESR and pIRIR dating. Using the interactions between the elevation, age and global mean sea-level elevations, the marine terraces were correlated with Marine Isotope Stages (MIS). The shore platforms at the Cape Espichel are more elevated than the coeval references at the Cape Raso - Abano beach and this indicates differential uplift. Considering the culminant shore platform (3.7 Ma), for the Espichel W promontory the estimated long-term uplift rate is ∼0.03 m/ka, but for the Cape Raso is only ∼0.01 m/ka. Also, by using the shore platform considered as produced by the MIS 15 high stand (∼572 ka), the estimated uplift rate for the Espichel W promontory is ∼0.13 m/ka, but for the Cape Raso is ∼0.07 m/ka. The Espichel W promontory terrace staircase also allows to deduce that the estimated uplift rate was nearly constant during ∼600 ka to ∼200 ka ago (∼0.13–0.11 m/kA), but it after decreases (∼0.06–0.01 m/ka).

2025-01-28T00:00:00Z Miguel, A. F. http://hdl.handle.net/10174/37347 2024-09-09T05:02:49Z 2024-01-01T00:00:00Z

Title: Low dissipative configuration in flow networks subject to constraints Authors: Miguel, A. F. Abstract: The homothetic relationships for the design of dendritic networks are examined in terms of minimal size under constant flow resistance, and minimum flow resistance under constant size. Based on a comprehensive meth­odology, we offer a general approach for the homothety ratios of diameters and lengths that apply to different flow regimes and size constraints. In addition, scaling laws for diameters-lengths, sizes-diameters, and resistances-lengths are provided. Since the dendritic trees designed based on size homothety ratios have prefractal characteristics, a methodology for determining prefractal dimensions in terms of fluid flow and size constraint characteristics is also offered. Among the findings, we show that the homothety ratios are the same regardless of whether the functions we selected are used as the constraint or the cost function. The approaches presented and literature data were compared, and a significant degree of agreement was found. The findings presented here not only serve as a tool for the design of microfluidic chip devices but also deepen our understanding of natural networks such as the ones that support the life of mammals.

2024-01-01T00:00:00Z Pepe, V. R Miguel, A. F. Zinani, F. Rocha, L. A. O. http://hdl.handle.net/10174/37346 2024-09-09T05:02:02Z 2024-01-01T00:00:00Z

Title: Fluid flow in isomeric constructal networks of tubes Authors: Pepe, V. R; Miguel, A. F.; Zinani, F.; Rocha, L. A. O. Abstract: The branching topology of tree networks has a considerable influence on the distribution of fluid flow inside them. Fluid flow asymmetry (an unequal distribution of fluid flow between the daughter tubes) can arise in geometrically symmetric branches. It is important to be able to pinpoint the reason for this, which is still not fully understood. This study compares tree flow network designs with the same number of tubes of equal sizes but attached to one another in various directions, i.e., network isomers. The flow resistance and fluid flow distribution assessment within the networks are calculated based on the computational fluid dynamics results. This study shows, among other results, that the flow asymmetries are more noticeable at higher bifurcation levels, and the performance of tree designs is highly dependent on how the tubes are arranged in the network, especially how they are aligned at different levels of bifurcation. Practical guidelines that can immediately produce significant insights into the relationship between the incidence of asymmetry in the flow and alignments of the tubes between levels are defined. The findings of this study will be useful to designers in improving the design and management of these networks.

2024-01-01T00:00:00Z