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本文研究局部缓慢狭窄幅度径向振荡血管内血液脉动流的输入阻抗。犬股动脉计算结果表明不论哪一种参数变化，零阶谐频阻抗模（阻力）最大，然后下降，在二阶谐频处发生波动。狭窄振荡频率的变化，使各阶谐频输入阻抗模在一个心动周期内发生不同的变化。狭窄幅度的变化则对输入阻抗模影响较小。
In this paper, we study the input impedance of locally slow and narrow amplitude radial oscillatory blood flow in arterial bloodstream. Canine femoral artery results show that no matter what kind of parameter changes, the zero order harmonic impedance mode (resistance) is the largest, and then down, fluctuations occur in the second harmonic. Changes in the narrow oscillation frequency, so that the various levels of the input impedance of the harmonic mode in a cardiac cycle changes occur. Smaller changes have less effect on the input impedance.