Statistically Based Decompression Tables 8: Linear-Exponential Kinetics.

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Statistically Based Decompression Tables 8: Linear-Exponential Kinetics.

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dc.contributor NAVAL MEDICAL RESEARCH INST BETHESDA MD en_US
dc.contributor.author Parker, EC en_US
dc.contributor.author Survanshi, SS en_US
dc.contributor.author Weathersby, PK en_US
dc.contributor.author Thalmann, ED en_US
dc.date.accessioned 2006-08-30T03:19:18Z
dc.date.available 2006-08-30T03:19:18Z
dc.date.issued 1992 en_US
dc.identifier.govdoc ADA257613 en_US
dc.identifier.govdoc NMRI-92-73 en_US
dc.identifier.govdoc XB-NMC en_US
dc.identifier.other PE63713N en_US
dc.identifier.other WU1002 en_US
dc.identifier.other Mathematical data. en_US
dc.identifier.uri http://archive.rubicon-foundation.org/3409
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 Probabilistic models applied to diving decompression data have been successful in describing decompression sickness (DCS) occurrence and even time of DCS occurrence. This study explores a class of models using linear as well as exponential gas exchange kinetics to provide slower tissue washout than previous models. The models consist of 3 or 4 kinetic compartments, each of which can employ purely exponential (EE) or mixed linear-exponential (LE) kinetics. The risk of DCS is obtained from the single or double integration of the sum of compartment over-pressures. The resulting four models, EE1, EE2, LE1, and LE2 cover a broad range of gas kinetic possibilities. The data used in fitting these models are compiled from U.S. Navy, Canadian, and British chamber dive trials. There are 799 different dive profiles, representing 2383 man-dives, with a DCS incidence of 5.8 percent (131 DCS cases, 75 marginal cases). Time of DCS occurrence information is included for all decompression sickness, maximum likelihood, probabilistic modelling, gas exchange kinetics. DCS and many marginal cases. Maximum Likelihood fitting of the four models to these data indicate LE1 to be the best fit. The LE1 Model is able to predict DCS occurrence in the fitted data, as categorized by type of dive profile, risk level, and time of DCS occurrence. LE1 is able to predict DCS occurrence well in most data not used for fitting, with the exception of profiles using high percentage O2 breathing mixtures and some repetitive profiles. en_US
dc.format.extent 137360584 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 SICKNESS en_US
dc.subject KINETICS en_US
dc.subject MODELS en_US
dc.subject CHAMBERS en_US
dc.subject COMPARTMENTS en_US
dc.subject DECOMPRESSION en_US
dc.subject DIVING en_US
dc.subject EXCHANGE en_US
dc.subject FITTINGS en_US
dc.subject INTEGRATION en_US
dc.subject MIXTURES en_US
dc.subject NAVY en_US
dc.subject PRESSURE en_US
dc.subject PROFILES en_US
dc.subject RESPIRATION en_US
dc.subject GASES en_US
dc.subject BREATHING GASES en_US
dc.subject OXYGEN en_US
dc.subject TABLES(DATA) en_US
dc.subject RISK en_US
dc.subject GAS EXCHANGE(BIOLOGY) en_US
dc.subject BREATHING GASES en_US
dc.title Statistically Based Decompression Tables 8: Linear-Exponential Kinetics. en_US

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