Issue 7 and Volume 144.

SUMMARY OF COMPARISON OF LIFE-DETECTION INSTRUMENTATION In August 1989, the U. S. Department of Labor Mine Safety and Health Administration, in cooperation with Johns Hopkins University at the Francis Scott Key Medical Center, conducted a collapsed building exercise during which eight seismic and acoustic life-detection systems were used and compared. The staffs of the Pittsburgh Health Technology Center and Westinghousc Mine Emergency Operations also participated in the exercise. Following is a summary of the recommendations and conclusions resulting from that event. THE EXERCISE Primary objectives: To characterize and compare several seismic and acoustic systems used to detect trapped persons in building-collapse situations and to determine the applicability of the systems for emergency mine operations. This exercise was the first attempt at identifying a significant area of research required for the improvement of urban search and rescue capabilities. Site: Demolition of the Community Services Center building at the Francis Scott Key…

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