根据高分子材料中三维应力应变关系建立了三维传递矩阵数学模型，模拟梯度聚氨酯在不同入射角下的吸声性能。
A three-dimensional transfer matrix model was presented to simulate the sound absorption coefficients of the graded polyurethanes based on relation of stress and strain of polymers.
运用光在分层介质中传播的特征矩阵方法，通过数值计算，研究了掺杂一维光子晶体中光子禁带及杂质模的特性随不同偏振光及入射角的变化。
The characteristics of photonic forbidden band and impurity mode in doped one-dimensional photonic crystal were investigated by numeral simulated calculation with the method of characteristic matrix.
跃迁矩阵元被表示为两项，当入射电子和散射电子近似为平面波时，跃迁矩阵元的第一项是一个发散的复数；
The first term of this transition matrix element is a divergent pluralism when the incident and scattered waves are chosen as plane wave.
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