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According to characteristics of Metal Magnetic Memory in crack propagation of ferromagnetic materials, relative entropy of wavelet energy of MMM signals is proposed to characterize fatigue crack propagation based on the characteristics of time-frequency localization of wavelet transform and information entropy reflecting the uncertainties of source information. The relative entropy of wavelet energy...
It has been proposed that paleoclimatic changes and tectonic events strongly affect hominoid evolution. The Zhupeng section at Yuanmou Basin, southwestern China, with the hominoid-bearing fluvial-lacustrine sediments, is an ideal natural laboratory to test this hypothesis. This study provided an integrated magnetic study, including low-fre-quency susceptibility, the anisotropy of magnetic susceptibil-ity,...
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