Design and Validation of a Breathing Detection System for Scuba Divers by Corentin Altepe, S. Murat Egi, Tamer Ozyigit, D. Ruzgar Sinoplu, Alessandro Marroni, Paola Pierleoni

“…This study proposes an embedded system with a live and light-weight algorithm which detects the breathing of divers through the analysis of the intermediate pressure (IP) signal of the SCUBA regulator. A system composed mainly of two pressure sensors and a low-power microcontroller was designed and programmed to record the pressure sensors signals and provide alarms in absence of breathing. …”
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Light environment drives the shallow‐to‐mesophotic coral community transition by Raz Tamir, Gal Eyal, Netanel Kramer, Jack H. Laverick, Yossi Loya

“…Currently, a 30 m depth limit, based on SCUBA regulations, separates shallow and deep mesophotic coral ecosystems (MCEs). …”
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