Accession Number : AD0767722

Title :   Formulation of Excursion Procedures for Shallow Undersea Habitats.

Descriptive Note : Final rept.,

Corporate Author : UNION CARBIDE RESEARCH INST TARRYTOWN N Y

Personal Author(s) : Hamilton,Robert W. , Jr. ; Kenyon,David J. ; Freitag,Mark ; Schreiner,Heinz R.

Report Date : 31 JUL 1973

Pagination or Media Count : 191

Abstract : Reported are operational experiments for developing and refining procedures for working from a shallow habitat. The program was to construct a matrix of ascent-limiting M-values based on several hundred diversified dive logs, to compute no-stop excursion limits for various times and depths, (both ascending and descending), and to verify the resulting tables. The authors devised an efficient method for extracting and utilizing data from previous dives, using a combination of computer and manual methods. Tables were computed using the new matrix and decompression model which in this case comprises 11 gas loading compartments; the longest limiting half-time used was 480 minutes. Extensive physiological experimentation and medical surveillance was conducted. Among the findings was the demonstration that habituation at 90 fsw provides relief from narcosis when subjects are subsequently exposed to 250 fsw of air. (Modified author abstract)

Descriptors :   (*STRESS(PHYSIOLOGY), DIVING), (*DECOMPRESSION, DIVING), SHALLOW WATER, NITROGEN, OXYGEN, DECOMPRESSION SICKNESS

Subject Categories : Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE