positive acceleration

Effects of positive acceleration on formation of experimental atherosclerosis in rabbits

正加速度对家兔实验性动脉粥样硬化形成的影响

Positive acceleration brought about a greater of serum cholesterol in rabbits fed with cholesterol than in control group ( P < 0.01 ) .

正加速度能使喂饲胆固醇家兔的血清总胆固醇含量升高得更多（P<0.01）。

The Separation of Genes from Rats Related to High Tolerance to Positive Acceleration

大鼠正加速度高耐力相关基因的分离

Effect of Positive acceleration on plasma and thalamus endothelin content in rats

+Gz对大鼠血浆和丘脑内皮素含量的影响

The short-term precursory anomaly is the " positive acceleration " phenomenon of water level .

它的短期震兆异常是水位变化的正向加速现象。

BACKGROUND : Brain injury can be induced by repeated high positive acceleration (? Gz ) exposure , but the mechanism was still unclear .

背景：反复高正加速度（+Gz）暴露可引起脑损伤，但其病理机制尚不清楚。

Effects of Positive Acceleration on the Microcirculation of Rabbit Conjunctiva , Mesentery , Skin and Pia Mater

正加速度（+Gz）对兔眼球结膜、肠系膜、皮肤与软脑膜微循环影响及其意义

Because of their special working environment , pilots have been inevitably exposed to various stressors among which positive acceleration ( + Gz ), noise , vibration and high temperature are always present and remain important factors threatening flying safety .

由于军事飞行特殊的工作环境，战斗机飞行员不可避免地暴露于各种应激源，其中最常见的主要有正加速度（+Gz）、噪声、振动和高温等，已成为威胁飞行安全的重要因素。

The sustained positive acceleration ( + Gz ) has a stronger gravitational effect on pilots along the Z-axis of their bodies in the direction of head-to-foot , and induces shift of blood from head and thorax to lower body parts .

持续性正加速度（+Gz）则对飞行员引起更加强烈的沿身体纵轴的重力作用，使血液向下身转移。

Based on the analysis on the valve gear kinematic curves of a certain chrysler engine , it is found that there is a discontinuity in the positive acceleration portion , then a N th harmonic valve lift curve meeting the constraint conditions has been designed by optimization .

针对美国Chrysler发动机气门运动曲线在最大正加速度段有突变这一问题，进行了分析。采用优化设计法设计了一条满足约束条件的N次谐波气门运动曲线。

As compared with the combined sine-cosine acceleration pattern , this pattern , under the condition that its negative acceleration at beating-up is kept the same or increased , has the following advantages : 1 . Its maximum positive acceleration can be decreased by 25 & 30 % ;

它与正弦、余弦组合加速运动规律比较，在打纬时刻的负加速度相等或有所增加的情况下，它有下列优点：（1）最大正向加速度值可降低25&30%；

And this is a positive feedback acceleration process till the stress destroy wave is formed , and results in the quick failure of the coal seem and the coal and gas outburst .

这是一个正反馈的加速过程，最后水平载荷形成应力破坏波，造成煤体的快速拉裂破坏，形成煤与瓦斯突出。

In the course of time positive and negative acceleration impulses tend to cancel one another .

在长时间中，正向和反向加速度冲击有互相抵消的趋势。

Variation of NO , NOS level of brain tissue and plasma ET in rats induced by positive and negative acceleration

正、负加速度交替急性大鼠脑组织NO、NOS及血浆ET的含量变化

The motion sickness group rats were established by rotatory stimulation with alternative positive and negative acceleration 2 h / d for 4 days .

MSG大鼠给予正负交变加速度旋转刺激2h/d，连续4d后与NCG大鼠一起处死；

Based on the vehicle movement dynamics , the motions with positive or negative acceleration are taken into account to deduce the equation of lateral change of the carbody acceleration .

基于行驶动力学理论，推导出考虑列车加减速行驶的车体横向加速度时变率的一般计算公式。

Especially , when main rainfall appears to the right of the centers ( viewing in the direction of motion ) 81.8 % of the landfall TCs have a positive 12-hour average acceleration ;

当主要降水落区位于热带气旋前进方向右侧时，热带气旋的12小时平均加速度为正的占了大部分（81.8%）；

Most of the researches on physical dust formation centralized in the rainfall and flowing water 's action before , and ignored the positive formation and acceleration action of wind power on it especially in the flown sand region .

对土壤物理结皮形成的研究，大都集中在降雨和流水对物理结皮形成的作用，而忽视了风力尤其是在流沙区风力及其大气降尘对结皮的形成和促进作用。