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Large Amplitude Oscillatory Shear (LAOS) is a test method for the characterization of complex fluids [1].Among several LAOS analysis methods, the Fourier Transform (FT)-Rheology is sensitive method.I proposed a new nonlinear coefficient Q established from FT-Rheolgy under LAOS.The parameter Q is defined as Q ≡ I3/1/γ02 whereI3/1 is the normalized 3rd harmonic contribution [2].