unsaturated permeability

New apparatus for measurement of stress effect on permeability of unsaturated soil

一种能测量应力状态对非饱和土渗透系数影响的新型试验装置

The factors which effect on the infiltration are analysis, including parameters in VG model, soil distribution, angle of slope, rainfall duration and the predicting model for the coefficient of permeability of unsaturated soil.

对现场土坡形态进行简化，以简化后的土坡作为计算模型，分析了VG模型参数、土层分布、坡比、降雨持续时间和非饱和渗透系数推定模型的选择对数值模拟结果的影响。

Air Pressure Fluctuation Induced by Sea Tide in a Coastal Unsaturated Zone Covered with a Layer of Lower Permeability

海潮引起的临海地区低渗透性覆盖层下包气带中的气压波动

And finally, the unsaturated permeability coefficient of gravelly soil is calculated by empirical formulas based on its SWCC and saturated permeability coefficient.

最后，根据土水特征曲线和饱和渗透系数，采用经验公式估算了其非饱和渗透系数。

The comprehensive impacts of low temperature and its lasting time on the content of chlorophyll, proline, soluble saccharide and unsaturated fatty acid as well as the relative cytolemma permeability, the activity of SOD and POD were significant.

低温及低温持续时间对红叶石楠叶片中叶绿素含量、质膜相对透性、SOD酶活性、POD酶活性、脯氨酸含量、可溶性糖和膜脂不饱和脂肪酸的综合影响均达到极显著水平。