pressure support

Randomised, controlled trial of alternating pressure mattresses compared with alternating pressure overlays for the prevention of pressure ulcers: PRESSURE ( pressure relieving support surfaces)-trial

气垫床垫与气垫床罩预防压力性溃疡的随机、对照试验：PRESSURE（减压支持表面）试验

At the same degree of respiratory muscle unloading, PAV can be implemented at much lower peak inspiratory pressure than PSV. It can also apply proportional pressure support according to the patients' ventilatory demand.

在做功相同时，PAV比PSV吸气峰压降低，根据患者的需要保持相应的通气量。

This paper is based on result of visioplasticity test of thick cylinder during axial pressure with support of mandrel, velocity field and strain rate field were established.

本文根据厚壁圆管在两端夹持、有芯轴支撑、轴向加载的条件下，视塑性试验流线分布的结果，建立了变形区域的速度场和应变速率场。

Because this coal bed thickness is moderate, selects the shield type hydraulic pressure support.

由于该煤层厚度适中, 选用掩护式液压支架.

Objective To establish the method for clinical use of proportional assist ventilation ( PAV) and evaluate the effect on COPD patients. The main similarities and differences of PAV and pressure support ventilation ( PSV) were described.

目的建立比例辅助通气（PAV）临床应用的方法，评价其治疗慢性阻塞性肺疾病（COPD）急性发作期患者的疗效，并与压力辅助通气（PSV）比较。

Combining the basic principle of support in the soft-rock laneway and the theory of pressure-arch, this article introduces the theory of fully bolting-grouting reinforcement, and associating the practice, brings forward to the parameters of bolting and serosity of bolting-grouting reinforcement in soft-rock.

结合软岩巷道支护的基本原则和锚杆加固的压力拱理论，介绍了软岩巷道全断面锚注加固，并结合实际研究了锚杆加固中锚杆的布置参数和注浆参数。

A propane refrigeration cycle process, combined with the existing gas field high-pressure throttling refrigeration treatment process, the transformation process of the low pressure gas propane refrigeration cycle, which provided technical support for the future design of the propane refrigeration system.

研究了丙烷制冷循环工艺，结合现有的气田天然气高压节流制冷处理工艺流程，提出了低压气丙烷制冷循环的改造工艺，为今后丙烷制冷系统的设计提供了技术支撑。

The floating seal ring is a non-touch liquid clearance seal with lots of advantages: large differential pressure, small through-flow, automatically center adjusting and centering, non-friction in theory, providing auxiliary support for the rotor.

浮动密封环作为非接触式液体间隙密封，具有密封压差大、泄漏量较小、能自动调心和对中、理论上无磨损、对转子有辅助支撑作用等优点。

A new prediction method of the pressure of early temporary support

开巷初期临时支护压力预测的新方法

Using the theory of Terzaghi's relation soil pressure, the minimal support pressure formula with tunnel face in stratified sandy soil was obtained based on the principle of sliding block entire force balance.

采用太沙基松动土压力理论，根据滑动块的整体受力平衡，推导出砂性土中考虑成层土的开挖面最小支护压力计算公式。

According to coal wall front force of support and workface support stress movement transformation relations, the main roof cycle pressure can be accurately forecast.

根据工作面煤壁前方支承压力和工作面支架受力之间的运动转化关系，可准确预报工作面老顶的周期来压；

A study on forming limit of thick cylinder under axial pressure with support of mandrel

厚壁管有芯镦锻成形极限的研究

To Study management of respiratory failure tape I through nasal mask pressure support Ventilation ( PSV) and guiding signif cation by concepts of permissive hypercapnia ventilation ( PHV).

探讨经鼻压力支持通气（PSV）治疗Ⅱ型呼衰的效果及对可允许高碳酸血症通气（PHV）治疗的指导意义。

use of pressure support ventilation in pediatric patients after cardiac surgery

压力支持通气在小儿先心病术后的应用