Genesis GRAVITON - Glossary of Terms & Definitions

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18.0 Glossary of Terms & Definitions
Term
Description
High-Altitude Diving
Diving activities above 300m/1000ft altitudes
Ascent Rate
The speed at which the diver rises in the water to the surface
Central Nervous System
Poisoning
High pressure oxygen is toxic to the human body, and the toxicity produced
by excessive breathing can lead to different symptoms of neurotoxicity. The
most serious of these is the convulsive neurotoxic reaction, which is likely to
cause breathing to be caused by convulsions beyond the diver's control and
cause drowning
CNS
Abbreviation of oxygen poisoning in the central nervous system
Decompression
Before the diver ascends to the surface of the water, the diver stays at the
permissible depth, allowing nitrogen dissolved into the body's tissues to be
discharged naturally by the body's metabolism due to differences in pressure
gradients
Decompression Sickness
Also known as DCI or diver disease. The cause is due to improper control of
the decompression process, resulting in the body or tissue because the
pressure gradient is too large, the body's metabolic system is too late to
drain excess nitrogen and directly form bubbles, these bubbles in the body
directly or indirectly caused by a variety of diseases. Generally referred to as
DCI or diver disease.
Dive Time
Start of diving until the end of the dive
NDL
No Decompression Limit, also known as the decompression-free time or
decompression-free limit, is called a dive with a diver's ascent process that
does not require a decompression stop, while a diver's maximum time at a
certain depth without entering a stress-free state is a stress-free time or
decompression-free limit
EAN
An abbreviation for Enrich Air Nitrox (High Oxygen Nitrogen Mix. For short, or
EANx, x represents a percentage increase in oxygen percentage. For example,
the ratio of high oxygen mixture is a mixture of 32% and 36% for EAN32
(NOAA I) and EAN36 (NOAA NN II).
NITROX
The nitrogen oxide concentration of the mixture with variable nitrogen
concentration is changed to the proprietary name "NITROX" in the English
word meaning of the nitrogen and oxygen as the pre-vowel, and the Chinese
name is defined as "nitrogen oxide mixture gas"
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