Althaus L, Henssge C
Institut für Rechtsmedizin der Universität Essen, Germany.
Forensic Sci Int. 1999 Jan 25;99(3):171-8. doi: 10.1016/s0379-0738(98)00188-1.
Cooling experiments on dummies known as body-like cooling were performed with sudden decrease and increase of ambient temperature in the order of 15 degrees C. In the case of a sudden decrease of ambient temperature, a second 'temperature plateau' occurs which is shorter than the known plateau at the beginning of body cooling. The cooling curves can be described mathematically by a three-step procedure based on the two-exponential term of the 'nomogram method'. The second plateau at the beginning of the second cooling phase in sudden decreased ambient temperature requires a lower value of the constant A (1.15) compared with the known value (1.25) at the beginning of body cooling. In the case of a sudden increase of ambient temperature in the order of 15 degrees C no procedure could be found to model the cooling curves mathematically.
在模拟人体的假人上进行了冷却实验,即所谓的人体样冷却实验,实验中环境温度以15摄氏度的幅度突然下降和上升。在环境温度突然下降的情况下,会出现第二个“温度平台期”,它比人体冷却开始时已知的平台期要短。冷却曲线可以通过基于“列线图法”的双指数项的三步程序进行数学描述。在环境温度突然下降时第二个冷却阶段开始时的第二个平台期,与人体冷却开始时已知值(1.25)相比,常数A的值较低(1.15)。在环境温度以15摄氏度的幅度突然上升的情况下,未找到对冷却曲线进行数学建模的程序。