Statistically Based Decompression Tables XI: Manned Validation of the LE Probabilistic Model for Air and Nitrogen-Oxygen Diving.

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Statistically Based Decompression Tables XI: Manned Validation of the LE Probabilistic Model for Air and Nitrogen-Oxygen Diving.

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dc.contributor.author Thalmann, ED en_US
dc.contributor.author Kelleher, PC en_US
dc.contributor.author Survanshi, SS en_US
dc.contributor.author Parker, EC en_US
dc.contributor.author Weathersby, PK en_US
dc.date.accessioned 2006-08-30T03:19:45Z
dc.date.available 2006-08-30T03:19:45Z
dc.date.issued 1999 en_US
dc.identifier.govdoc ADA360867 en_US
dc.identifier.govdoc NMRC-99-01 en_US
dc.identifier.govdoc NEDU-TR-1-99 en_US
dc.identifier.govdoc XB-BUMED en_US
dc.identifier.other PE63713N en_US
dc.identifier.other WUDN17792 en_US
dc.identifier.uri http://archive.rubicon-foundation.org/3412
dc.description Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. en_US
dc.description.abstract This first-ever validation trial of a probabilistic decompression algorithm was conducted from 1991-92. A real time computer algorithm updated subjects' optimal decompression schedule within a numerical specification of the acceptable risk of decompression sickness (DCS). Long dives (majority over 6 hours) were chosen for testing because of operational needs and under-representation in the calibration data set: long repetitive air dives and multi-level dives - with air throughout, or with 0.7 ATA O2 during shallow transits or during the final decompression. Non-acclimatized divers wearing wet suits were immersed, chilled, and performed moderate exercise on the bottom but rested during decompression. A total of 730 dives resulted in 36 DCS cases, and another 20 cases with marginal symptoms. A subset (158 dives) were performed with the Combat Swimmer Multi-level Dive procedure, demonstrating greater safety when shallow transits were taken at 15 than at 30 feet of seawater. Overall the model was a predictive success: on none of the profiles were observed DCS incidence outside statistical uncertainty, and optimal model parameters were not greatly changed by the addition of the trial data. The real time algorithm is reliable enough for general Navy use. en_US
dc.format.extent 218800883 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. en_US
dc.subject DECOMPRESSION en_US
dc.subject SCUBA DIVING en_US
dc.subject RISK ANALYSIS en_US
dc.subject DATA BASES en_US
dc.subject MATHEMATICAL MODELS en_US
dc.subject ALGORITHMS en_US
dc.subject UNCERTAINTY en_US
dc.subject OPTIMIZATION en_US
dc.subject AIR en_US
dc.subject NITROGEN en_US
dc.subject OXYGEN en_US
dc.subject TABLES(DATA) en_US
dc.title Statistically Based Decompression Tables XI: Manned Validation of the LE Probabilistic Model for Air and Nitrogen-Oxygen Diving. en_US

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