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Teamwork in Antarctica
(2020)This document regards the report of the research project "Team Adaptation during Antarctica Summer Campaigns", supported by the Portuguese Polar Program (PROPOLAR). It contains general findings about teamwork in Antarctica and recommendations for practice.Report -
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Close-to-touching acoustic subwavelength resonators: eigenfrequency separation and gradient blow-up
(2020)SAM Research ReportIn this paper, we study the behaviour of the coupled subwavelength resonant modes when two high-contrast acoustic resonators are brought close together. We consider the case of spherical resonators and use bispherical coordinates to derive explicit representations for the capacitance coefficients which, we show, capture the system's resonant behaviour at leading order. We prove that the pair of resonators has two subwavelength resonant ...Report -
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Multi-scale classification for electro-sensing
(2020)SAM Research ReportThis paper introduces premier and innovative (real-time) multi-scale method for target classification in electro-sensing. The intent is that of mimicking the behavior of the weakly electric fish, which is able to retrieve much more information about the target by approaching it. The method is based on a family of transform-invariant shape descriptors computed from generalized polarization tensors (GPTs) reconstructed at multiple scales. ...Report