The aim of this paper is to analyse the demographic and migratory dynamics in the Portuguese island regions of Madeira and the Azores over the last two decades.The article begins with a brief overview of the historical and geographical context, which is essential for understanding the factors that shape population evolution and are reflected in the
The scope of the research presented in this paper are aluminum flexible ducts which have a wide application in heating, ventilation, air conditioning and process engineering.Aluminum flexible ducts consist of several alternating layers of aluminum and polyester and steel wire bent into a spiral, while the merger of layers is done using glue.The los
Using the TIPEC framework, this study undertook a critical literature analysis, and student survey to explore challenges experienced by higher education institutions during emergency online pedagogies because of disruptions from the COVID-19 outbreak.The study COLLAGEN PEEL revealed that most higher education institutions are still grappling with g
Flexible pipelines connect offshore platforms to subsea production systems due to their high flexibility, applicability, and recycling.Flexible armor layers in flexible pipelines are constructed using the parallel helical wrapping of several rectangular wires.The complex stress modes to which pipelines are subjected provide complex failure Blender