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Author

O. Frazão

2 papers indexed here

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Open access Sep 2026

The Contribution of DAS to the Routine Monitoring of Seismicity in Oceanic Islands: The Case for Faial (Azores)

Distributed acoustic sensing (DAS) deployed on submarine telecom cables is bound to revolutionize the earthquake monitoring routine currently performed by seismic network operators, particularly in domains where most seismic activity originates offshore. In this work, we analyze one year of DAS data recorded on a subma...

L. Matias, C. Corela, Afonso Loureiro et al. · 0 citations
Open access Sep 2026

Quadrature 1D–LiDAR Sensing for Indirect Height Measurement of a Helical Bogie Spring

Three-dimensional optical ranging has become an effective tool for railway infrastructure monitoring, enabling accurate geometric characterization of tracks and the detection of structural anomalies. Beyond track inspection, this work investigates the potential of a low-cost optical ranging approach for indirect monito...

Claudio Floridia, F. Frade, O. Frazão · 0 citations

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