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—Commercial off-the-shelf autonomous underwater vehicles (AUVs) are commonly equipped with short range radios (for high bandwidth, low-cost close range operation) and satellite modems (for low bandwidth, global operation). In a coastal observatory it should thus be possible to exploit an AUVs' proximity to the coast to use the short range radios when(More)
— Radio communications between an Autonomous Underwater Vehicle at sea and shore-based base-stations faces considerable challenges particularly if the antenna on the vehicle does not rise high enough above the water surface. At distances comparable to the maximum line-of-sight distance to a base-station at a given height, situations may occur where the(More)
Four lignin samples were extracted from sugar cane bagasse using four different alcohols (methanol, ethanol, n-propanol, and 1-butanol) via the organosolv-CO2 supercritical pulping process. Langmuir films were characterized by surface pressure vs mean molecular area (Pi-A) isotherms to exploit information at the molecular level carrying out stability tests,(More)
Massive Multiple-input Multiple-output (MIMO) systems offer exciting opportunities due to their high spectral efficien-cies capabilities. On the other hand, one major issue in these scenarios is the high-complexity detectors of such systems. In this work, we present a low-complexity, near maximum-likelihood (ML) performance achieving detector for the(More)
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