expiratory resistance

Result The movement of valve plate could be simulated with the method proposed , and the course of the " dithering " was found out . Numerical simulation of expiratory resistance of pressure oxygen mask under no overpressure condition

结果采用本文的方法可以实现活门板的运动仿真，通过对仿真结果的分析可以找出活门板在高余压状态下发生抖动的原因。加压供氧面罩无余压时呼气阻力的数值模拟

Objective To obtain the expiratory resistance in pressure oxygen mask under no overpressure condition with numerical simulation method .

目的用数值模拟的方法获得加压供氧面罩无余压状态下呼气活门的呼气阻力。

Multivariate analysis of the effects of different ratios in matching inspiratory with expiratory resistance on respiratory pattern and subjective sense

呼、吸气流阻力不同匹配对呼吸型式及主观感觉影响的多因素分析

Expiratory airway resistance ( Re ) was measured by using animal respirator .

以动物呼吸机测定呼气相气道阻力（Re）；