Observation on the effect of prevention of postoperative tourniquet shock by means of fractional deflation of lower limb pneumatic tourniquet Research on Pressure of Tourniquet during Lower Extremity Operation 下肢气压止血带分次放气预防术后止血带休克效果观察
That's still a few billionths of the fractional pressure changes your ear can detect. 而这仍然只有你的耳朵能探测到的压力变化的几十亿分之一。
The fractional change in length or area or volume per unit change in temperature at a given constant pressure. 在恒定压力下长度或面积或体积的微小变化和单位温度变化的比值。
Left ventricular ejection fraction ( LVEF) and fractional shorting ( FS) were measured by doppler ultrasonography cardiogram in children with CHF. Pulmonary pressure was also estimated in children with CHD. 多普勒超声心动图检测心力衰竭患儿心室射血分数(LVEF)、缩短分数(FS),对先天性心脏病患儿估测肺动脉压力。
The definition and calculation of fractional dimension are introduced briefly. Fluctuating pressure signals from sediment? laden and aerated flow are processed by the reconstruction of phase space. 简要介绍分维的定义和计算方法,同时运用相空间重构法,对含沙掺气水流脉动压力信号进行处理,并计算浑水、清水、掺气三种不同水流状况的关联维数。
The model developed can be used to describe the change of methanol fractional conversion, space-time yield of hydrogen and the outlet temperature of bed at different operating conditions, such as raw material ratio, pressure, space velocity of liquid, wall temperature and inlet temperature. 考察了不同的原料液配比、系统压力、液空速、壁温及进口温度下甲醇的转化率、氢气的时空产率和床层出口温度的变化。
Thermodynamic analysis of limestone calcination under O_2/ CO_2 atmosphere in fluidized bed condition was experimented. The results were accorded with thermodynamic analysis. The initial decomposing temperature of CaCO_3 increased with the increasing of CO_ 2 fractional pressure, but the increasing breadth was decreased. 针对O2/CO2气氛下石灰石煅烧分解特性进行了热力学分析和热重试验结果的动力学分析,将热力学分析结果与热重试验结果进行了对比,得出石灰石的起始分解温度随CO2分压比的增大而增高。
Abstract: Fractional sulfuric acid leaching of magnesium oxide that influence pyrometallurgical technology from waste magnesia brick at ambient temperature and pressure was conducted to comprehensively recover gold and silver, copper etc. 通过运用分步浸出技术可在常温、常压条件下用硫酸浸出废镁砖中对火法冶炼影响很大的高熔点氧化镁等成分,使金、银、铜等有价金属得到富集;