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11-01-2010, 08:40 AM
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An Electronic Nose?
There are several stages in the decomponsition process. Flies begin to lay eggs in every available crevices during the initial, fresh stage. Bloating occures in the next stage as the result of gaseous byproducts of bacteria growth. In the third stage, called active decay, the body's soft tissue liquefies. At the fourth stage, the body is little more than bones. Several technologies were evaluated, Aroma Scan of gasses emitted from decaying bodies and gas chromatographic analysis of amino acid composition of various tissues from decaying bodies. The goal of the Aroma Scan study was to evaluate odor of decay as an indicator of time since death (TSD). To accomplish this goal eleven human bodies were placed about the Anthropological Research Facility at the University of Tennessee and left to decay. The aroma of each decaying body was measured at daily intervals over a period of approximately one month by an electronic nose composed of 32 sensors. - wonder what an electric nose looks like!! |