Physiological adjustments and passive thermal insulation are not sufficient to protect divers in the cold and warm waters experienced by sport, professional and military divers. In a previous study of resting subjects, divers were protected by actively heated/cooled water that perfused a six-zone (head, torso, arms, hands, legs and feet) tube suit. Subsequently a self-contained diver thermal pr...

Drowning is the major cause of death in self-contained underwater breathing apparatus (SCUBA) diving. 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...

DIVER is the Virtual Environment software architecture library developed at the University of Virginia. I t is similar to SGl’s InventorTM, but was developed spec$cally as a toolkit for creating Virtual Environments rather than for mouse-based applications. Like Inventol; DIVER was implemented on top of the SGl’s GLTM library and provides a powerful hierarchical graphics database. Unlike Invent...

Introduction: Scuba diving is an important marine tourism sector, but requires proper safety standards to reduce the risks and increase accessibility to its market. To achieve safety goals, safety awareness and positive safety attitudes in recreational scuba diving operations are essential. However, there is no published research exclusively focusing on scuba divers' and dive centres' perceptio...

With continued growth of marine exploration and underwater missions, there is a need to design new diving technologies. Currently, dive time limited by scuba tank weight volume. The use an electrolysis system, powered battery, for driving chemical reactions could be introduced produce steady supply oxygen during dives. However, batteries have capacity, are heavy, detrimental the environment whe...

OBJECTIVE To evaluate the cardiopulmonary effects of open sea scuba air diving to 39 m (30 minutes bottom time) with standard decompression. To account for possible gravity dependent effects of venous gas bubbles, the variables were measured in different post-dive body postures and compared with the baseline values before the dive in the same posture. METHODS Eight male divers conducted two s...