呼气阻力

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

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

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。

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

结论阻塞性肺气肿HRCT密度定量能间接的反映阻塞性肺气肿的呼气阻力和呼吸肌力的变化。

Conclusion Quantitative HRCT can reflect indirectly the changes of PEF and IP slope of PFTs in OPE .

以年龄、身高、FVC为自变量建立了呼气阻力（RE）和吸气阻力（RI）的回归方程。

The regression equations of expiratory and inspiratory resistances ( R , R I ) were built with age , height and FVC as independent variables .

UTI组的吸气阻力、呼气阻力、峰值压力和平台压力值均明显低于对照组（P<0·05），而肺顺应性值明显高于对照组（P<0·05）。

Lung compliance was significantly increased in the ulinastatin patients compared with the one in the control group ( P < 0.05 ) .

呼气阻力负荷对呼吸中枢驱动的影响

Effects of Expiratory Load on Central Respiratory Drive in Normal Subjects

各干预组与鼻炎组相比，呼气阻力、吸气阻力均无差异。

The RNA of expiration and inspiration in 4 interventions groups were no statistical difference with rhinitis group .

结果与健康组比较，渗出性结核性胸膜炎（胸腔积液）患者共振频率增高，呼气末阻力增高，电抗下降；

Results Compared with normal cases , the resonance frequency of the 71 patients with exudative tuberculosis pleurisy ( pleural effustion ) increased . The resistance increased and reactance descended in end-inspiration .

以年龄、身高、FVC为自变量，在IBM－PC／XT计算机上用多元逐步回归法建立呼气和吸气阻力的回归方程。

The regression equations of expiratory and inspiratory resistances were built with multiple stepwise regression analysis on the IBM PC / XT computer with age , height and FVC as independent variables .

以动物呼吸机测定呼气相气道阻力（Re）；

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

方法采用呼气活门静态特性方程与流场控制方程耦合求解的方法，计算加压供氧面罩呼气活门的呼气阻力。

Method The static model of the exhalation valve and control equation of flowfield were coupling solved .