查询词典 permeability

Based on the above contents, investigated the genesis of low permeability and the main factors affecting on physical property.

在对以上内容分析研究的基础上，切入主题进一步研究储层的特低渗成因以及影响物性的因素。

We discovered that the mechanisms of borneol opening BBB involved (1) promoting the tight junction of endothelial cells opening:(2) increasing the quantity of pinocytosis vesicle in endothelial cells and enhance the pinocytosis;(3) inhibiting the activation of P-glycoprotein (P-glycoprotein is an efflux pump of drugs) and increase the permeability of BBB;(4) reducing the expression of intercellular adhesion molecule-1 in brain microvessel endothelial cells;(5) increasing the concentration of Ca〓 in brain microvessel endothelial cells;(6) increasing the activation of eNOS in brain microvessel endothelial cells.

随后，在对冰片开放血脑屏障的机制作进一步的研究时又发现，冰片开放血脑屏障的机制包括以下几个方面：(1)冰片可使血脑屏障内皮细胞间的紧密连接开放；(2)冰片能使内皮细胞内的囊泡数量增加，吞饮功能增强；(3)冰片能抑制P-糖蛋白的活性（P-糖蛋白是一种药物外排泵），而使血脑屏障的通透性增加；(4)冰片能使脑微血管内皮细胞ICAM-1表达量减少；(5)冰片使脑微血管内皮细胞内的Ca〓浓度升高；(6)冰片可升高脑微血管内皮细胞eNOS的活性。

Finally the migration of plasticizer and water vapor permeability are restrained in the present of CB.

此外，CB的加入还有效抑制了共混体系中增塑剂的迁移和水蒸气透过率。

These results indicate that molecular shape and pliability are determinants of glomerular permeability.

结果表明分子构型和柔顺性在肾小球的通透上具有作用。

Under winter low temperature stress, the injury of membrane caused by membrane lipid peroxidation could occur in podocarpus fleuryi Hickel seedlings, even though it was not serious lipid peroxidation damaged the structure and function of cell membrane, and resulted in the increase in membrane electric conductivity, membrane permeability and electrolyte leakage.

长叶竹柏幼苗在冬季低温胁迫下，植物体细胞要发生膜脂过氧化作用，程度较轻，膜脂过氧化作用损伤了细胞质膜的结构和功能，从而导致了叶片中细胞膜透性的增一大，电解质外渗，电导率增大，这在本试验中得到了初步的证实。

The experimental results showed the air and water vapor permeability of polyurethane membranes are improved.

结果表明，白木粉的加入能改善聚氨酯膜的透气和透汽性能。

RTM process simulation gives veracious guidance to mould development and com- ponent manufacture. composite ; resin transfer molding; simulation ; permeability ; H-wallboard

但是，由于RTM工艺过程在闭合模腔内完成，有很多影响成型和产品性能的工艺参数：注射压力/流动速率、树脂豁度、纤维渗透率、模具和树

The results indicate that the porosity and water content of bentonites have a remarkable influence on their permeability.

实验结果表明：膨润土的孔隙度和含水率对其渗透系数有十分显著的影响。

As a result, the high quality reservoirs are developed in a generally low porosity and permeability background.

从而在一个普遍低孔、低渗的背景下，形成了孔隙度相对较高的优质储集层。

The porosity and permeability of rock are related directly to grain size and sorting characteristics.

颗粒大小和分选性对岩石的孔隙和渗透率有直接关系。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。