History of decompression research and development | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-15

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/History_of_decompression_research_and_development


00:03:09 1 Timeline
00:12:55 2 Haldanean (perfusion limited, dissolved phase) models
00:13:35 2.1 Haldane's theory and tables
00:15:13 2.1.1 Haldane's model
00:16:45 2.1.2 Decompression tables
00:18:17 2.2 U.S. Navy decompression tables
00:18:50 2.2.1 C&amp;R tables (1915)
00:19:14 2.2.2 Hawkins Schilling and Hansen (1930s)
00:20:28 2.2.3 Yarbrough (1937 tables)
00:20:54 2.2.4 1956 tables
00:22:39 2.2.5 U.S. Navy exceptional exposure tables
00:23:36 2.3 Reformatting of the U.S. Navy 1956 tables by recreational diving community
00:24:11 2.4 Modified U.S. Navy 1956 tables
00:26:04 2.4.1 Jeppesen tables
00:26:34 2.4.2 Bassett tables
00:27:09 2.4.3 NAUI tables
00:28:52 2.4.4 Pandora tables
00:29:58 2.4.5 Huggins model and tables
00:30:59 2.4.6 PADI Recreational Dive Planner
00:32:12 2.5 Bühlmann tables
00:33:26 2.6 Modified Bühlmann tables
00:33:36 2.6.1 Swiss sport diving tables
00:34:10 2.6.2 Bühlmann/Hahn tables (German)
00:35:03 2.7 French Navy – Marine Nationale 90 (MN90) decompression tables
00:38:13 3 Non-Haldanean dissolved phase models
00:38:23 3.1 Royal Navy Physiological Laboratory model
00:39:19 3.2 DCIEM model and tables
00:40:56 4 Mixed phase models (dissolved and bubble phases)
00:41:07 4.1 Thermodynamic model
00:41:41 4.2 Tables du Ministère du Travail
00:41:51 4.2.1 Tables du Ministère du Travail 1974 (MT74)
00:42:12 4.2.2 Tables du Ministère du Travail 1992 (MT92)
00:43:49 4.2.3 The arterial bubble decompression model
00:51:54 4.3 U.S. Navy E-L algorithm and the 2008 tables
00:54:24 4.3.1 Physiological interpretation
00:55:18 4.4 BSAC '88 Tables
00:59:24 4.5 Varying Permeability Model
01:01:22 4.5.1 Bubble population distribution
01:01:35 4.5.2 Bubble nucleation
01:02:44 4.5.3 Ordering hypothesis
01:03:33 4.5.4 Development of decompression model
01:05:09 4.5.5 Comparison of VPM profiles with other models
01:05:32 4.6 Reduced Gradient Bubble Model
01:08:45 5 Modifications to models and algorithms for diluent gases other than nitrogen
01:09:24 5.1 Alternative diluent gases
01:09:50 5.2 Decompression models which have been adapted to include alternative and multiple diluents
01:10:10 6 Commercial diving tables
01:12:07 7 See also



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SUMMARY
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Decompression in the context of diving derives from the reduction in ambient pressure experienced by the diver during the ascent at the end of a dive or hyperbaric exposure and refers to both the reduction in pressure and the process of allowing dissolved inert gases to be eliminated from the tissues during this reduction in pressure.
When a diver descends in the water column the ambient pressure rises. Breathing gas is supplied at the same pressure as the surrounding water, and some of this gas dissolves into the diver's blood and other tissues. Inert gas continues to be taken up until the gas dissolved in the diver is in a state of equilibrium with the breathing gas in the diver's lungs, (see: "Saturation diving"), or the diver moves up in the water column and reduces the ambient pressure of the breathing gas until the inert gases dissolved in the tissues are at a higher concentration than the equilibrium state, and start diffusing out again. Dissolved inert gases such as nitrogen or helium can form bubbles in the blood and tissues of the diver if the partial pressures of the dissolved gases in the diver gets too high when compared to the ambient pressure. These bubbles, and products of injury caused by the bubbles, can cause damage to tissues known as decompression sickness or the bends. The immediate goal of controlled decompression is to avoid development of symptoms of bubble formation in the tissues of the diver, and the long-term goal is to also avoid complications due to sub-clinical d ...