Voĭtsekhovich I A
Aviakosm Ekolog Med. 1996;30(2):37-44.
In the devised integral mathematical model of decompression body tissues are expressed as sets of spectra of specific body tissue semi-saturation periods calculated from tissue circulation and corrected for gas diffusion through the skin. Values of permissible oversaturation were determined as a sum of critical and permissible supercritical oversaturations. The critical oversaturation of tissues is proportional to the cubic root from the ambient pressure, whereas the permissible supercritical oversaturation is a function of time constant of tissue desaturation and critical oversaturation. This decompression model incorporates specific models of tissue saturation and desaturation asymmetry due to difference in physical activities, ambient temperature and oxygen partial pressure in the breathing mixture during exposure and decompression. Besides, an equation to evaluate and control oversaturation in the combined venous blood was established and used in the model. Experiments showed that following decompression regimes calculated with this model, the level of gas formation in the combined venous blood was significantly lower than after application of decompression following similar regimes in the Diving Service Rules-85.
在所设计的减压积分数学模型中，减压时身体组织用特定身体组织半饱和期的光谱集表示，这些半饱和期根据组织循环计算得出，并针对通过皮肤的气体扩散进行了校正。允许过饱和度的值被确定为临界过饱和度和允许超临界过饱和度之和。组织的临界过饱和度与环境压力的立方根成正比，而允许超临界过饱和度是组织去饱和时间常数和临界过饱和度的函数。该减压模型纳入了由于暴露和减压期间身体活动、环境温度以及呼吸混合气中氧分压的差异而导致的组织饱和与去饱和不对称的特定模型。此外，还建立了一个评估和控制混合静脉血中过饱和度的方程并应用于该模型。实验表明，按照该模型计算的减压方案进行减压后，混合静脉血中的气体形成水平显著低于按照《潜水服务规则 - 85》中类似方案进行减压后的水平。
