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Baseline-free damage visualization using noncontact laser nonlinear ultrasonics and state space geometrical changes Liu, Peipei; Sohn, Hoon; Park, Byeongjin, SMART MATERIALS AND STRUCTURES, v.24, no.6, 2015-06 |
Baseline-free fatigue crack detection based on spectral correlation and nonlinear wave modulation Liu, Peipei; Sohn, Hoon; Yang, Suyoung; Lim, Hyung Jin, SMART MATERIALS AND STRUCTURES, v.25, no.12, 2016-12 |
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