two-sided Laplace transform

This paper developes a boundary element method for transient response of two& dimensional viscoelastic structures in terms of the Laplace transform and inversion technique.

本文应用直接边界单元法结合Laplace变换和反变换技术，建立了粘弹性结构动态响应分析的一个较好的数值求解方法。

Using the Laplace transform, Tayler expansion and Asymptotic Waveform Evaluation ( AWE) methods, simplifying the analysis model, obtaining two simple and applicable PIN diode simulation models;

采用拉普拉斯变换、泰勒极数和线性逼近的方法，将分析模型简化，提出了两种简单而实用的PIN二极管仿真模型；

Finally get the Laplace transform of ruin probability when the claim size is exponent distribution and claim intensity is two states and the express of ruin probability for exact number.

最后给出当理赔额服从指数分布，理赔强度为两状态的马氏过程时破产概率的拉普拉斯变换，对一些具体数值计算出了破产概率的表达式。