After analyzing the spectrum of a group of signals, non-polar differential exponent pulse signal was selected as carrier wave, which can separate therapy threshold and ache threshold.

通过对载波信号的频谱分析，提出了一种能分离治疗阈值与疼痛阈值的无极性指数脉冲。

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In this paper, we investigate the iterated order and iterated convergence exponent to zero sequence of the solutions of some classes of differential equations.

本文研究了几类微分方程解的迭代增长级及零点迭代收敛指数。

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The hyper order, the exponent of convergence and the hyper-exponent of convergence of zeros of solutions for some types of K-order linear differential equations with entire coefficients are discussed.

研究了几类K阶整系数线性微分方程解的超级、零点收敛指数和零点超收敛指数，得到一些精确的结果。

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