PARAMETRIC EFFECT AND NONLINEARITY PARAMETER IN BIOLOGICAL FLUIDS-中国期刊网

摘要 BasedontheFenlon‘stheorytheparametriceffectsinfluidsduetothenonlinearinteractionofalowfrequencypumpingwaveandahighfrequencyprobingwaveareanalysed.TheexpressionsofpressureamplitudeofsumordifferencefrequencysidebandandthefromulaofnonlinearityparameterB/Aforlossymediumarederived.Theoreticalcalculationdemonstrated,thatthesidebandcomponentsincreaselinearlywithpumpsignal.Therefore,amethodfordeterminationofB/Aisprovidedandtheval-uesforseveralbiologicalfluidsandmixturesaremeasured.

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PARAMETRIC EFFECT AND NONLINEARITY PARAMETER IN BIOLOGICAL FLUIDS

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PARAMETRIC EFFECT AND NONLINEARITY PARAMETER IN BIOLOGICAL FLUIDS

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