Pollutant health risk assessment method based on process simulation and uncertainty analysis
A health risk assessment and uncertainty technology, applied in medical simulation, health index calculation, computer-aided medical procedures, etc., can solve problems such as poor accuracy, observation data error, model parameter uncertainty, etc. Effect
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[0065] Example: reverse calculation of the permeability k of the medium by means of a two-dimensional sandbox experiment, and calculate the ILCR value at the right boundary of the sandbox. The two-dimensional sand box is 60cm long (x), 45cm wide (y), and 1.6cm thick (z). Set the constant water head boundary at x=0 and x=60cm, the water flow velocity in the sand box is 1m / d, the pollutant injection point is located at x=30cm, y=40cm, z=0.8cm, as figure 1 shown. At the beginning of the simulation, the injection of pollutants just stops, and the distribution is as follows: figure 2 , the risk control surface takes the place on the far right close to the right boundary. 16×38 (x×y) observation points are evenly arranged in the black dashed box in the figure. Considering the heterogeneity in the sand filling process, although the black solid line box in the figure does not have a lens in the experimental design, the pollutants do not flow out along the right side of the lower l...
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