Immediate gas-phase products include significant quantities of hydrogen cyanide and acetylene.
Instead, in this paper, we propose a wireless sensor actuator system which aims at quick gas detection and immediate isolation of gas leak source.
More attention is paid to immediate noble gas releases occurring in the early phase of severe accidents, as well as the delayed release of iodine and cesium that can cause wide spread land contamination.
A series of blood samples (0.6 ml) were taken for immediate blood gas analysis.
Heliox (50 50) immediate breathing gas shift to heliox (50 50) and recompression to 405 kPa cased all bubbles (N = 5) to likewise shrink consistently until they disappeared from view.
A catheter in the left femoral artery allowed monitoring of heart rate and arterial blood pressure, and sampling for immediate blood gas analysis (Radiometer ABL725, Copenhagen, Denmark).
In B experiments (Fig. 1), bubble injection was done before the first pressure exposure, thus allowing for an immediate breathing gas shift upon surfacing from the first exposure with a subsequent recompression to either 285 or 405 kPa (Fig. 1).
On the contrary, an immediate breathing gas shift from air to heliox (80 20) or (50 50) combined with recompression caused bubbles to shrink consistently until they disappeared from view (Figs. 3, 4).
Blood samples were obtained and immediate blood gas measurements were performed on 3, 5, 7, 9, 11, 15, 20, 25, 30 min in both periods and at the 60th minute in FiO2 0.55 period.
The group B experiments were performed in order to test whether an immediate breathing gas shift from air to heliox (80 20) or (50 50) with subsequent recompression (imitating actual treatment profiles), would cause transient bubble growth or reduced rate of bubble disappearance in spinal white matter, thus causing potential deterioration of neurological DCS symptoms.
