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This paper presents a novel method which takes advantage of the K-means clusters and effective degree of clustering to recognize the abnormal data of electricity consumption by PLC communication. The novel clustering method was used to supervise the abnormal or missing data by the badly quality of PLC communication effectively. Firstly, we extract good historical data as the basic cluster according...
Thermoplastic polyurethane, based on 4,4′-diphenylmethane diisocyanate and polyether polyol, was degraded by glycol and ethanolamine at 170 °C. Optimum conditions for the glycolysis of thermoplastic polyurethane were investigated by adjusting the ratio of polymer to degradation reagent, glycol to ethanolamine as well as the reaction temperature. The degradation reaction was conducted under nitrogen...
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