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Repositório de Publicações Científicas
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DA UNIVERSIDADE PORTUCALENSE
Entradas recentes
A utilização das redes sociais nas bibliotecas académicas: questões práticas [webinar]
2020-10-13 - Marinho, Filipa
Segunda série de webinars em português organizados pela Ebsco Brasil e Ebsco Portugal, "A Biblioteca está aberta".
Optimization of Water Droplet Impact on GFRP Blade Materials with Taguchi Technique
2026-04-25 - Singh, Amanpreet; Yadav, Mohit; Khalaf, Osamah Ibrahim; Altaei, Mohammed Sahib Mahdi; Singh, Khushwant; Moreira, Fernando
The aim of the research is to compare the erosion performance under the effect of polyurethane coated and uncoated wind turbine blade (WTB) with Glass Fiber Reinforced Polymer (GFRP) material in offshore environmental conditions. The experiments were conducted on erosion tester using two parameters such as impact velocity (60, 90,120 m/s) and impact angle (30°,45°,60°). The experimental design was generated with the help Taguchi L9 array. Polyurethane spray coating was applied and offshore conditions were simulated using salt water. Furthermore, SEM (Scanning Electron Microscope) testing was done to study the surface morphology and Minitab software was used for statistic and Origin software was used to create graphs. The main finding shows that the impact velocity is the most influencing factor as compared to impact angle. Moreover, the surface
morphology reveals the ductile mechanism of erosion and 93% more mass loss was measured in uncoated surface than coated surface.
Conflitos, migrações e vulnerabilidades: Impactos dos conflitos armados no Médio Oriente sobre mulheres e crianças
2026-04-01 - Alves, Dora Resende; Lima, Angélica
O artigo analisa as lacunas jurídicas e operacionais que condicionam a proteção de mulheres e crianças deslocadas pelos conflitos no Médio Oriente, articulando o Direito Internacional Humanitário, o regime dos refugiados e as práticas de acolhimento da União Europeia e países vizinhos. [...]