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中文摘要：
类比黑体辐射分布的普朗克公式,提出一维流场中污染物（或示踪剂）浓度的时间过程线分布或污染物浓度值的倒数沿程变化的时空迁移转换规律均可用与Plank分布相似的公式描述。结合实测的河水污染物监测数据,采用免疫进化算法对公式中的参数进行优化,得出优化后的一维流场中的污染物浓度时空迁移转换的Plank公式。实例分析表明该公式具有意义明确、形式简洁、所含参数较少、易于计算、方便实用的特点。
英文摘要：
To analogize the blackbody radiation formula, the time course line distribution or the change regulation along the way of the reciprocal of pollutant concentration in one-dimensional flow field can all be described with Plank＇s distribution formula of space-time transition of the pollutant concentration. Combined with the measured monitoring data of pollutant in river water, the parameters in the formula were optimized by using immune evolutionary algorithm （lEA）. Optimized Plank＇s formula of space-time transition of pollutant concentration in one-dimensional flow field can be obtained. Cases analysis showed that the formula was clear in meaning, simple in form, easy to calculation and had the feature with fewer parameters.
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