无正

对于无正构烷烃的生物降解油，峰的确定相对困难；

The determination of peaks is relatively difficult for biodegraded oil without n alkane .

预氧无正压通气在急症饱胃患者全麻快诱导中的应用

Application of preoxygenation without PPV during rapid sequence induction of anesthesia in full stomach patients

关于弯曲理论纵向纤维间无正应力的假设

About the Hypothesis of Bending Theory That There Is No Direct Stress Between the Longitudinal Fibers

瓣膜反流的程度与脱垂范围的大小无正相关，与腱索损害的严重性有关。

The degree of valvular regurgitation was not related with the range of prolapse and was related with the severity of tendinous chorda injury .

实验表明81.25%的菌株具有致病性，而致病性与β溶血程度无正相关；

The test showed that the 81 . 25 % isolates had pathogenicity , which did not have to do with degree of beta hemolysis .

本文主要讨论梁横力弯曲，忽略纵向纤维间无正应力假设的准确性。

The paper mainly discusses the shearing bending of beam and the veracity of the hypothesis that there is no direct stress between the longitudinal fibers .

说明低压差粘度与低切粘度之间无正相关性。结论流态不同（片形、管形），血液的流变特性不同。

The outcome revealed the absence of positive correlation between the viscosity of low shear rates and low Δ P.Conclusion Different fluid states ( laminar or tubular ) determine different rheological characteristics of blood .

应用电抗评估重度COPD患者气流受限的程度及无创正压通气的效果

Use of Reactance to Assess Airway Obstruction in Severe COPD Patients and Effect of Noninvasive Ventilation

无创正压通气治疗COPD合并急性高碳酸血症性脑病的临床研究

Effect of Non-invasive Positive Pressure Ventilation in Treatment of Patients With COPD Complicated With Acute Hypercapnic Encephalopathy

严重COPD患者稳定期长期无创正压通气治疗临床疗效及依从性观察

Efficacy and Compliance With Long-term Controlled Trial of Non-Invasive Positive Pressure Ventilation in Patients With stable Severe COPD

经24h无创正压通气治疗后，患者的动脉血气指标、肺活量和肺不张情况均较对照组明显改善（P<005），无创正压通气对术后疼痛有一定的缓解作用（P<005）。

Arterial blood gas parameters and vital capacity in NIPPV group were better than those in control group .

目的：观察无创正压通气（NIPPV）在严重急性呼吸道综合征（severeacuterespiratorysyndrome，SARS，即非典型肺炎）治疗中的应用及其作用。

Objective : To observe the application and the roles of non invasive positive pressure ventilation ( NIPPV ) in the treatment of severe acute respiratory syndrome ( SARS ) .

目的探讨无创正压通气（NIPPV）在COPD并SAS急性加重期及稳定期治疗的效果评价。

Objective To study the effects of NIPPV for patients with COPD and SAS in acute exacerbation period and stable period .

目的探讨无创正压通气（NIPPV）早期应用治疗急性加重期慢性阻塞性肺疾病（COPD）的指征和价值。

Objective : To estimate the early use of noninvasive positive-pressure ventilation ( NIPPV ) in acute exacerbations of COPD .

应用无创正压通气（NIPPV）的5例；

Cases accepted non invasive positive pressure ventilation .

目的：无创正压通气（noninvasivepositive-pressureventilationNIPPV）指通过面罩、鼻面罩或其他连接装置进行的正压通气。

Objective : Noninvasive positive-pressure ventilation ( NIPPV ) is appositive - pressure ventilation with face mask or nose-face mask or other things .

无创正压通气治疗创伤性湿肺的临床研究（3）经气管灌注小剂量LPS致老龄大鼠急性肺损伤时，主要影响肺的氧气交换能力，以体内血氧含量降低最著；

Clinical study of noninvasive positive pressure ventilation in trauma patients with acute respiratory distress syndrome . ( 3 ) ALI induced by LPS influence the oxygen exchanges between the capillaries and alveoli ;

术前准备包括戒烟、预防和控制感染、扩张支气管和呼吸功能锻炼，6例病人术前进行无创正压通气（NPPV）训练，手术在硬膜外阻滞复合全身麻醉下完成。

Preoperative treatment included smoking cessation , control of infection , appropriate bronchodilators , chest physiotherapy and breathing exercises .

目的探讨无创正压通气（NPPV）中支气管舒张剂定量吸入剂（MDI）有效的治疗方法。

Objective To investigate the effective methods to deliver the metered-dose-inhaler ( MDI ) of salbutamol during non-invasive positive pressure ventilation ( NIPPV ) .

HBVdna与抗-HBe无线性正相关性，HBeAg阴性、抗-HBe阳性，病毒复制有所下降，但病毒载量仍较高，不可忽略其传染性。

However , HBV-DNA did not show linear correlation with anti-HBe as HBeAg negative and anti-HBe positive , the level of hepatitis B viral replication decrease slightly . But the virus load is still high . Infectivity can not neglect .

[目的]稳定期慢性阻塞性肺疾病（COPD）患者应用无创正压通气（NIPPV）的潜在治疗效果仍不十分明确。

[ Objective ] The potential treatment effect on stable chronic obstructive pulmonary disease ( COPD ) patients with noninvasive positive pressure ventilation ( NIPPV ) is still not very clear .

目的评价无创正压通气（NPPV）治疗急性肺损伤（ALI）/急性呼吸窘迫综合征（ARDS）患者的临床效果。

Objective To evaluate the effect of noninvasive positive pressure ventilation ( NPPV ) on treatment of patients with acute lung injury ( ALI ) / acute respiratory distress syndrome ( ARDS ) .

方法：分析以无创正压通气治疗20例由内地进入海拔2200m以上高原的急性高原性肺水肿患者与既往20例同类患者的临床资料。

Methods : Clinical data were analyzed about 20 HAPE patients who entered to high altitude areas ( 2 200m ) from plain areas undergone NIPPV and 20 similar kinds of patients with HAPE .

评价无创正压通气在治疗急性高原性肺水肿危重患者的意义及呼吸治疗的探讨

Treatment and Evaluation of severe HAPE With Non-invasive Positive Pressure Ventilation

无创正压通气在重症支气管哮喘治疗中的价值

The worth of noninvasive ventilation in the treatment of severe asthma

对有创正压通气技术与无创正压通气技术进行比较。

This paper compares invasive positive pressure ventilation technology with noninvasive one .

加强对无创正压机械通气技术的推广应用

Strengthen the extension and application of noninvasive positive pressure ventilation

无创正压通气模式和参数调节及其监测

Management of non-invasive Ventilation : modes , parameters and monitoring

重症哮喘无创正压通气临床疗效观察

Clinical investigation of non-invasive positive pressure ventilation in patients with severe asthma

无创正压通气治疗老年性早期肺性脑病疗效分析

Noninvasive mechanical ventilation for early pulmonary encephalopathy in the elderly