[abstract] A DECISION AID FOR OPTIMIZING SURVIVAL IN A DISABLED SUBMARINE

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[abstract] A DECISION AID FOR OPTIMIZING SURVIVAL IN A DISABLED SUBMARINE

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Title: [abstract] A DECISION AID FOR OPTIMIZING SURVIVAL IN A DISABLED SUBMARINE
Author: Wray, DD; Francis, TJR; Ryder, SJ; Kargher, RS
Abstract: BACKGROUND: Should a submarine become unable to surface Under its own power, the crew are likely to spend a period of time in the boat before either having to make an escape to the surface or being rescued by another submersible. During this time they will endeavor to survive and maintain a breathable atmosphere with limited resources. The senior survivor will have to manage numerous tasks and solve many complex calculations at a time when he and his crew are under considerable psychological and physiological stress. The existing guidance on how to manage this situation is disseminated in a number of reference books. METHOD: A computer program called SEAREX has been written in visual basic, to run on any PC running Microsoft Windows 95 and Microsoft Internet Explorer. For each task which needs to be undertaken a determination has been made of the time the task will take to complete and the window in which this should occur. The program displays a "to do" list of the outstanding tasks as icons arranged in order of their urgency and impact on survival using a traffic light color coding system. Tasks which are overdue are colored red, those which need undertaken now are yellow and those which will need to be done shortly are colored green. Routines are built in which request data and undertake repeated calculations to estimate the time before an escape needs to be undertaken. Other routines include those for maintaining the atmosphere, operating the escape trunk and scheduling the issue of food and water. Past readings and predictions of the submarine atmosphere composition are displayed on graphs. "Help" screens displaying current guidance are available in both a context-sensitive manner and as electronic, hypertext-indexed reference manuals which can be accessed via the menu bar. Although the program is robust, it autosaves every five minutes to enable recovery should it crash. CONCLUSION: Although formal field testing of the prototype program has yet to be undertaken, those who have tested the program have found the interface simple to use and the advice useful. The program format may be applicable to the management of the other uncommon emergencies.
Description: Undersea and Hyperbaric Medical Society, Inc. (http://www.uhms.org )
URI: http://archive.rubicon-foundation.org/695
Date: 1998

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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