Results The value of IOS parameters between normal and asthmatic children was significantly different . The sensitivity and specificity were all 0.68 when total respiratory impedance ( Zrs )≥ 115 % normal predicted was adopted as abnormality .

结果哮喘患儿IOS参数与正常儿童显著不同，以呼吸 总 阻抗（Zrs）≥115%正常预计值作为肺功能异常时，其对哮喘诊断的敏感度和特异度均为0.68；

The total energy efficiency was limited by the extremely low energy transfer efficiency of power supply and might be enhanced by optimizing the impedance match between the power supply and reactor load . 2 .

合成过程的 总能效受制于极低的电源能量注入效率，后者的提升需通过优化电源与反应器负载间的 阻抗匹配来实现。

Measuring Total Peripheral Resistance with Reconstructed Impedance Cardiogram

重建心 阻抗图测定正常人 总外周阻力的探讨

Methods A total of 1 822 adolescents of Tibetan Qiang and Han nationality were chosen their body composition was determined by the bioelectrical impedance analysis ( BIA ) .

方法利用生物 电流 阻抗法（BIA）测定四川省阿坝 藏羌自治州7～18岁藏、汉、羌族1822名男女儿童青少年的体成分。

A new device for measuring human body total fat mass by bioelectrical impedance is described .

本文介绍一种利用人体 阻抗来测量人体脂肪 总量的新仪器。

Methods From a elementary school and a secondary school a total of 1 305 students were chosen and tested with bioelectrical impedance analysis ( BIA ) for body fat content .

方法选定广州市本地生源为主的中、小学各1所，采用生物电阻 抗法（BIA）对 1305名7~18岁儿童青少年进行体脂含量测定。

Oxygen sensors fabricated by thick-film thin-film and lamination technology decreased total impedance leading to the decreases of working temperature and reducing response time .

用厚膜、薄膜和叠片工艺制作的氧传感器，降低了 总 阻抗，从而降低了工作温度和缩短了响应时间。

The development of an instrument for measuring human body total fat mass by bioelectrical impedance

一种 阻抗 法人体脂肪 总量测量仪的研制及初步应用

While the total magnetic field is almost zero in Cu / FeSiB / Cu film the impedance changes little .

在Cu／FeSiB／Cu多层膜中，上下两铜层在铁磁薄膜内产生的 总磁场近似为零，外加磁场的改变不能引起其 阻抗发生变化。

The total conductivity measurements were carried out by impedance spectroscopy on 8mol % MgO-partially stabilized zirconia . An ionic blocking electrode was fabricated with electroplating method and the electronic conductivity of 8mol % MgO-PSZ was determined with the Wagner polarization method .

利用交流 阻抗谱法测定了8mol%MgO部分稳定氧化锆的 总电导率，同时采用电镀的方法制备了离子阻塞电极，并利用Wagner极化法测定了电子电导率。

The power time and total energy of the right accessory pathway are all higher than that of the left accessory pathway . ( P < 0.001 0.023 < 0.001 respectively ) . But the temperature and impedance are no difference in two groups .

左侧旁路与右侧旁路消融参数相比，右侧旁路的消融功率、时间及 总能量均大于左侧旁路（P值分别为<0.001、0.023、<0.001），而两组的消融温度、 阻抗无差异。

An experiment for determination of the total number of sulfide ions in the waste water from petroleum refinery with a single high input impedance ion meter and with a pH glass electrode and a sulfide electrode in acid media is described .

本文用普通的单高 阻输入离子计和 PH/S电极对，在酸性介质中测定炼油污水的硫离子，无需使用PH缓冲液。

Medtronic 5866 38M adaptor connects the atrial two lead in cascade circuit . Total atrial impedence is the sum of the impedance of the right atrial electrode and the coronary sinus ( CS ) electrode . So the pacing voltage should rise correspondingly .

Medtronic586638M型适配器串联连接双房电极，心房电极 总阻抗是右房和冠状窦电极 阻抗之和，不应误认为电极脱位，需相应提高起搏电压以维持有效起搏。

The value of total respiratory impedance in chronic obstructive pulmonary disease

呼吸 阻抗 测定在慢性阻塞性肺疾病中的价值

When there is a certain restriction to the total length of impedance transformer the characteristic impedance of conventional commensurate broadband matching networks would exceed feasible range .

当对 阻抗变换器 总长度有一定限制时，传统的均匀宽带阻抗变换器中的特性阻抗可能超出实际能实现的范围；

Methods Borg scores ventilation function pulmometry total airway resistance ( Rtot ) impedance and resistance of respiratory system were measured both in exacerbation and stable stage in 30 patients with COPD .

方法对30例COPD患者分别于急性加重期和稳定期进行Borg气急指数评估、肺通气功能检测、肺容量检测、体积描记法 总气道阻力（Rtot）测定和呼吸 阻抗、呼吸阻力检测。