查询词典 water permeability

Aim To study the relationship between permeability coefficient and oil/water partition coefficient of 17 alkaloidal drugs.

目的研究生物碱类药物经皮吸收系数与药物油/水分配系数的关系。

Results The relationship between permeability coefficient and oil/water partition coefficient of 17 alkaloidal drugs or drugs containing 2%Azone can be described as following equations.logkp=7.35×10-2-3.079×10-2logk-8.112;logkp(2%Azo)=8.32×10-2-2.68×10-2logk-5.272,respectively.

结果生物碱类药物的经皮渗透系数与药物油/水分配系数的关系式为：logkp=7.35×10-2-3.079×10-2logk-8.112；logkp(2%Azo)=8.32×10-2-2.68×10-2logk-5.272；结论 17种药物的油/水分配系数平均最佳值为2.83，含2%氮酮后的其平均最佳值为3.17。

Traditional sports in southwest minority nationalities mainly include such events as track field, ball games, martial art, chess, water sports, games, horsemanship, acrobatics, and animal fight. These sports games events are characterized by features of region, mass participation, festivity, being easy to participate, passing on from generation to generation, permeability and amusiveness.

我国大西南是少数民族主要聚居区，居住着藏、苗、彝、壮、布依、侗、瑶、白、土家、哈尼、傣、傈僳、佤、拉祜、水、纳西、景颇、仫佬、羌、布朗、毛南、仡佬、阿昌、普米、怒、德昂、京、独龙、门巴、珞巴、基诺等31个少数民族，各族人民在开发耕耘这块国土的同时，创造了丰富多姿的民族文化，成为我国文化多样性最为富集的地区，作为民族民间文化最重要组成部分的民族传统体育游艺在这些民族中有大量的遗存。

Therefore, it is held that the direct electric field can improve the development result of low-permeability, high water cut and depletive reservoirs. But it has little effect on matrix mineral of rock.

研究认为外加直流电场对提高低渗油田注水开发效果具有重要意义。

Taking the seedlings of Dodonaea viscosa, Leucaena leucophala and Tephrosia candida as experimental materials, through drought stress treatment on pot seedlings with watering treatment group as control, the changes of leaf relative water content, relative plasma membrane permeability and proline content under drought stress were studied.

以金沙江干热河谷主要造林树种坡柳、银合欢和山毛豆的苗木为实验材料，通过盆栽苗自然干旱胁迫，同时以浇水处理为对照，探讨了干旱胁迫下3树种苗木叶片的相对含水量、质膜透性以及脯氨酸含量的变化情况。

As for Leucaena leucocephala seedlings, MDA is not the main product of lipid peroxidation and Tephrosia candida seedlings do not only rely on SOD and POD action to reduce active oxygen content. Through comprehensive analysis on water holding capacity of leaf, cytomembrane permeability, MDA content and SOD, POD activity, Dodonaea viscosa seedlings show the highest drought resistance, then Leucaena leucocephala, Tephrosia candida the last.

干旱胁迫对银合欢膜系统损伤生成的主要降解产物不是MDA；山毛豆清除活性氧毒害作用主要不是通过SOD和POD的作用；通过叶片相对保水力测定及膜透性、MDA相对含量、酶活性变化情况的分析，3个树种中坡柳耐旱性最强，其次为银合欢，山毛豆居后。

It also occures in cold weather because the permeability of the endodermal cells decreases rapidly below 5℃, so the root resists the entry of water.

在寒冷的季节也同样会发生生理干旱。因为在5℃以下时内皮层细胞的渗透性迅速降低，因此根会抵抗水的进入。

The silicone rubber membrane used in SRMBR is a polymer-made non-porous material. It is hydrophobe and non-permeable to inorganic salt, and has the high selective ethanol permeability. Compared to the conditional separation technology, the pervaporation through SRM has the advantages of low-cost and low-pollution, especially applicable to separating volatile matter from organic matter-water system or organic-organic matter system.

其中的硅橡胶膜作为一种均相聚合物材料无孔膜，具有不透无机盐成分、疏水和对乙醇有较高选择透过性等特点；与传统分离技术相比，硅橡胶膜的渗透蒸发分离过程具有低能耗、污染少等优点，尤其适用于在有机物-水或有机物-有机物体系中分离挥发性有机物组分，现已用于发酵下游产物分离处理的试验研究中，并取得初步成效。

Photosynthetic rate and water utilization efficiency were increased, but malonic dialdehyde content and membrane permeability were decreased with polyamine treatment under hypoxia stress. At the same time, the fresh weight and dry weight was increased.

结果表明，外源多胺能显著提高低氧胁迫下黄瓜幼苗叶片的净光合速率和水分利用率，降低叶片中丙二醛含量和质膜透性，使幼苗鲜重和干重明显增加。

When the fault throw is relatively small, the shale gouge ratio and clay smear potential are relatively large and shale smear is strong. In addition, the coal layers on both sides of the fault are mainly juxtaposed against shale. Therefore, shale smear and juxtaposition play a key role in the sealing. In contrast, when the fault throw is relatively large and shale smear is relatively weak, juxtaposition is unfavorable for sealing. However, the mylonite resulted from strong cataclasis can act as a seal of the coals. The cementation resulted from underground water activity is of great significance to the sealing ability of the fault. Mylonitic coal layers resulted from faulting occur on both sides of the fault. They are unique reservoirs with low permeability and high displacement pressure and their scales depend, to some extent, on the fault throw, fault properties, the hanging wall and footwall.

结果表明：①当断层落差较小时，断层泥比率和泥岩涂抹潜势值较大，泥岩涂抹效应强烈，且与断层两侧煤层对接的岩石主要为泥岩类，此时起封闭作用的主要为泥岩涂抹作用和断层两侧岩性配置关系；②当断层落差较大，泥岩涂抹作用较弱时，对接越不利于封闭形成，但碎裂作用强烈，沿断层两侧形成的糜棱岩对煤层起到了封闭作用；③地下水活动导致的胶结作用对整个断层的封闭具有重要的意义；④断裂作用形成的糜棱煤沿断层两侧分布，此糜棱煤带是一种低渗透、高排替压力的特殊储层，其规模与断层的落差、性质、上下盘都有一定关系。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。