[Modeling and simulation on the appearance of peak value of breath alcohol concentration after various drinking...

In this paper, we try to estimate directly the time variations and the peak values of the breath alcohol concentration (BrAC) after drinking. First, the time variations of the BrAC is applied to the impulse response models of the 2nd order lag + time delay and the 3rd order lag. The Dirac's Delta functions are used to investigate the difference between drinking directly and out of a cup in many times. The relationship between the appearance of the peak value as time increases and the various drinking methods (i.e., quantity or interval) is discussed by using these models, and the results is confirmed experimentally. According to the simulation results, the appearance of the peak value of the BrAC depends on the various drinking methods considerably. Provided the parameters of these models are known in advance, time variations of the BrAC can be predicted immediately. Lastly, these results might be use in practice to reduce the risk of traffic accidents and maintenance of health.