22 documents found, page 1 of 3
When Do the Moments Uniquely Identify a Distribution
Coelho, Carlos; Alberto, Rui; Grilo, LuísThe authors establish when do the moments E(Xh), for h in some subset C of IR, uniquely identify the distribution of any positive random variable X, that is, when is xh a separating function. The simple necessary and sufficient condition is shown to be related with the existence of the moment generating function of the random variable Y = logX. The subset C of IR is thus the set of values of h for which the mom...
Medium-term effects of dune erosion and longshore sediment transport on beach–d...
Ferreira, Ana Margarida; Coelho, Carlos; Silva, Paulo A.Beach–dune systems are highly dynamic features of the coastal system, the evolution of which is influenced by several processes that occur at very different spatial and temporal scales. To mitigate shoreline retreat that threatens extensive coastal areas worldwide, coastal erosion mitigation measures are implemented, aiming to make coastal areas resilient to the effects induced by coastal erosion and the antici...
Numerical modeling of artificial nourishments on the beach profile: effects on ...
Coelho, Carlos; Ferreira, Ana Margarida; Lima, MárciaReports of overtopping and flooding due to the shoreline retreat are becoming more frequent. Artificial sediment nourishments are used to mitigate erosion and overtopping problems, as they protect ecosystems and infrastructures and can be relevant for tourism, by expanding the beach areas for recreational use. However, the performance of these interventions depends on the volumes of sand considered and the depo...
COAST: Coastal Optimization Assessment Tool
Coelho, Carlos; Lima, MárciaSem resumo disponível.; No abstract available.
Review of the quantification of aeolian sediment transport in coastal areas
Husemann, Paul; Romão, Frederico; Lima, Márcia; Costas, Susana; Coelho, CarlosCoastal dunes, formed and shaped by aeolian sediment transport, play a crucial role in ecosystem services and act as natural flood and coastal erosion defenses. This paper delves into theoretical equations and numerical models predicting sediment transport. Numerical models like cellular automata, XBeach-DUNA, the coastal dune model, and others are analyzed for their ability to simulate dune morphology, erosion...
INCCA: adaptação integrada às alterações climáticas para comunidades resilientes
Coelho, Carlos; Lima, Márcia; Alves, Filipe Moreira; Roebeling, Peter; Ferreira, Ana Margarida; Matos, Fábio; Barbosa, Joaquim PaisSem resumo disponível.
Assessing Coastal Erosion and Climate Change Adaptation Measures: A Novel Parti...
Coelho, Carlos; Lima, Márcia; Moreira Alves, Filipe; Roebeling, Peter; Pais-Barbosa, Joaquim; Marto, MarcoThis work aims to provide a more complete characterization of coastal erosion mitigation and climate change adaptation measures by presenting a participatory approach that integrates medium- to long-term perspectives, considering simultaneously social, environmental, economic and engineering dimensions to help decision makers implement sustainable climate change adaptation (CCA) strategies. The work lists, expl...
Participatory Approach to Build Up a Municipal Strategy for Coastal Erosion Mit...
Matos, Fábio André; Alves, Filipe; Coelho, Carlos; Lima, Márcia; Vizinho, AndréThe Ovar coastline is characterized as one of the coastal areas with the highest vulnerability and risk of erosion in the Portuguese coast. The high-energy coast is further threatened by a permanent sediment deficit of anthropic origin, as well as sea level rise due to climate change. It is essential to define modern coastal adaptation strategies to minimize the impacts of these issues on the local communities,...
VR scenarios to treat mental health
Deusdado, Leonel; Freitas, Elisabete; Coelho, Carlos; Morgado, MateoSchizophrenia is characterized by delusions, hallucinations, anhedonia and apathy, and is a chronic mental illness, which still has no cure. It is diagnosed in three main groups, namely positive symptoms, negative symptoms, and cognitive symptoms, and affects the patient in major areas of life, such as work, interpersonal relationships, or self-care. The usual treatment is carried out with the help of antipsych...
Towards customized footwear with improved comfort
Teixeira, Rafaela Marisa Fernandes; Coelho, Carlos; Oliveira, João; Gomes, Joana; Pinto, Vera Vaz; Ferreira, Maria José; Nóbrega, J. M.A methodology enabling the customization of shoes for comfort improvement is proposed and assessed. For this aim, 3D printed graded density inserts were placed in one of the critical plantar pressure zones of conventional insoles, the heel. A semi-automated routine was developed to design the 3D inserts ready for printing, which comprises three main stages: (i) the definition of the number of areas with differe...