COMPARISON OF DECOMPRESSION PROCEDURES FOR HeO2 DIVES USING THE METHOD OF MAXIMUM LIKELIHOOD

Authors
  1. Tikuisis, P.
  2. Nishi, R.Y.
  3. Mark, H.L.
  4. Weathersby, P.K.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);Naval Submarine Medical Research Lab, Groton CT (US)
Abstract
The method of maximum likelihood was used to predict the incidence of decompression sickness (DCS) for two different decompression procedures. These were based on the new DCIEM/CF HeO2 and the US Navy Surface-Supplied Helium-Oxygen Partial Pressure decompression tables. The dive profiles analyzed consisted of 44 different dives in the depth range from 37 to 99 msw and bottom times from 10 to 120 min. These dives represented exposures within or at the CF normal operational limits and at or beyond the CF exceptional exposure limits. The prediction model consists of mono-exponential gas kinetics with independent time constants for helium and nitrogen, and a DCS risk function based on the inert gas supersaturation.
Report Number
DCIEM-90-RR-01 — Research Report
Date of publication
15 Jan 1990
Number of Pages
24
DSTKIM No
90-01340
CANDIS No
63610
Format(s):
Hardcopy;Originator's fiche received by DSIS

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