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. 2020 Nov 30;20(23):6847. doi: 10.3390/s20236847

Table 2.

Model coefficient values (scaled).

Feature Aluminium Coefficient ABS Coefficient
Natural Frequency −0.636304 −0.338966
Temperature −0.244674 −0.092730
Amplitude 0.161097 −0.281892
Crack Position 0.119964 0.081306