Aerodynamic Investigation of Flow Characters of Internal Cooling Channel with Both Rib-roughened Walls and Film Hole Suctions; Effects of air injection on outlet flow field of compressor cascade 有肋和气膜孔出流的通道内流动特性研究孔隙射流结构对扩压叶栅出口流场特性的影响
For different grain sizes of Shanghai soft soil, at the beginning of de-saturation ( low suctions), the size of soil grains had little influence on permeability. 对不同粒径的上海非饱和软土层,在减饱和初期(低吸力阶段),土体中骨架颗粒大小对渗透性影响不大;
Under conditions of different values of constant suctions, the effective friction angle is approximate a constant, and cohesion coefficient versus suction relationship is approximately linear. 在不同的吸力条件下,固结排水剪的有效内摩擦角基本不变,黏聚力的增长与吸力的增长基本呈线性关系。
Undisturbed soil samples taken from different forests on east slope of Gongga Mountain were used to measure water contents within low suctions through decreasing pressure method, and the soil water retention curves were simulated using power function and fractal dimensions were calculated as well. 以贡嘎山东坡几种森林类型为例,采集林地原状土以减压法测定土壤低吸力段持水曲线,进行幂函数模拟和计算分形维数。
Experimental study on suctions between grains in unsaturated cohesive soil 非饱和黏性土粒间吸力测试研究
While the soil water suctions increased to some values, the unsaturated hydraulic conductivities in middle soil layers were higher than those in topsoil layers. 当土壤水吸力增大到一定值时,中间土层的土壤非饱和导水率反而大于底土层和表土层。
The study shows that the shear strength curves with different matric suctions have different locations in a σ-τ figure as well as linear rising; 研究表明,同吸力对应的抗剪强度线在σ-τ图中的位置明显不同,且呈直线式上升;
Methods For 18 patients with intractable pneumothorax, 60~ 100 ml autologous blood were injected into the pleura cavity under vacuum suctions. 方法对18例难治性气胸患者在持续负压吸引下一次性胸腔内注射自体静脉血60~100ml。
Water retention properties bentonites of the GHZ under different suctions are related closely with to microscopic mechanisms. 研究结果表明:在不同吸力作用下,膨润土的持水特性与其微观结构之间有着密切关系。
The evaporation data from the thin soil samples was used to calculate retention function at high matric suctions. 薄层土蒸发数据还被用于计算高吸力段的持水曲线。
An experimental study on the effect of different endotracheal suctions on the gas exchange in ARDS dog lung 不同吸痰方式对ARDS犬肺内气体交换影响的实验研究
Design parameters of dust removal tracking system, i.e. determining the air flow rate at each air suction, number of suctions for impeller coal feeder, suction air flowrate and total air of the system with total resistance. 跟踪除尘系统设计参数的确定,即确定每个吸风口的吸风量、确定叶轮给煤机吸风口的数量、确定系统的吸风量及总风量与总阻力。
Study on Suctions and Shear Strength of Unsaturated Soils and Experimental Verification 非饱和土的吸力与强度理论研究及其试验验证
Tendencies of the soil water retention curves of all soil layers in three kinds of soil were similar, the soil volumetric water content decreased with the soil water suctions. 各土层的水分特征曲线总的趋势是一致的,即随土壤水吸力的增加土壤体积含水量逐渐下降;
Relationship between Soil Aggregates and Water Content within Low Suctions Studied by Using the Fractal Dimension 应用分形维数研究土壤团聚体与低吸力段持水性的关系
When the soil water suctions were low, the unsaturated hydraulic conductivities in topsoil layers were higher than those in middle soil layers. 当土壤水吸力较低时,表土层土壤非饱和导水率大于底层土和中间土层的土壤非饱和导水率;
The test results shown that the single crack would lose most of water and reach a residual water content under very low suctions. 试验结果表明,单裂隙在极低基质吸力的情况下就会失去大部分的水,达到其残余含水率。