effective permeability

In the paper , we consider the fine iron powder to be sphe - rical . The relation among the effective permeability μ _W of the powder , permeability μ of magnetic conductance substance and filling rate p , has been found out .

本文将细铁粉视为球形、找出了粉末铁心有效导磁率μw与导磁物质的导磁率μ以及充填率p的关系。

Rotating the components of magnetic field with original effective permeability ;

采用有效磁导率，将磁场分量进行旋转；

Effective permeability 's are normally measured directly in the laboratory on small core samples .

有效渗透率一般是在实验室中对小体积岩芯样品直接测量得出的。

A discussion on the relationship between the absolute permeability and effective permeability of reservoir rocks

关于油层空气渗透率与有效渗透率关系探讨

This model can be used to calculate the effective permeability of the spherical particles with different array .

本模型可用于计算球形填料在不同排列方式下的等效磁导率，且与其它模型相比本模型与实验值更为吻合。

Meanwhile , the two aspects interact with each other , which make the effective permeability decreases .

同时这两各方面相互作用致使地层有效渗透率降低。

The performance of RAM is closely related to effective permeability and permittivity of composites .

吸波材料性能的优劣与复合物的等效磁导率与介电常数密切相关。

The calculation of the effective permeability in a meta-material were studied in this article .

本文研究了人工磁性材料的等效磁导率提取与计算问题。

A nude contract The effective permeability is stated as some numerical value at some given saturate conditions .

【律】有条件的无效契约有效渗透率用在一定饱和条件下的数值表示。

Influence of current heating on effective permeability of Co-based and Fe-based soft magnetic amorphous alloy ribbons

电流退火对钴基、铁基非晶软磁合金条带有效磁导率的影响

In the definition of effective permeability each fluid phase is considered to be completely independent of the other fluids in the flow network .

在有效渗透率的定义中，每一个液体相被认为与流体网络的其它流体相互独立。

The effective permeability can be regarded as the average permeability over the whole production zone influenced by the fluid flow during the well test .

由试井解释得到的有效渗透率，可以认为是油层在测试过程中流动影响所涉及的整个范围内的渗透率的平均值。

Adjoint method was used to calculate the sensitivity of flow rate and effective permeability coefficient with re-spect to the element density .

采用伴随法推导了出口流量对等效渗透系数和等效渗透系数对单元密度的灵敏度。

The result of the effective permeability is calculated both by the field summation and the scattering parameters and the results have a good agreement .

由场平均方法得到的等效磁导率与散射参数反演得到的等效磁导率进行了比较，两种结果符合一致。

The saturation 's , if known , should be specified to define completely the conditions at which a given effective permeability exists .

如果已知饱和度，就应将其详细说明来定义特定有效渗透率的存在条件。

Determining the magnetization of the particles with averaging the additional magnetic field , then calculate the effective permeability of the composite .

采用磁偶极子模型同时将附加磁场平均化确定了填料粒子的磁化强度，进而计算出了复合材料的等效磁导率。

This definition of effective permeability implies that the medium can have a distinct and measurable conductance to each phase present in the medium .

这一有效渗透率定义意味着介质对存在于其中的每一种液体有明显的可测量的传导性。

Effective permeability is introduced here to describe the simultaneous flow of more than one fluid . Coefficient of sensitiveness between permeability and effective pressure of coal samples

有效渗透率描述多种流体同时流动的情况。煤样渗透率对有效应力敏感性实验分析

It is found that the oil effective permeability of low middle porous sandstone is related with the porosity , water saturation and shale volume of formation .

研究发现，油的有效渗透率与中低孔隙性储层的孔隙度、含水饱和度及泥质含量有关。

The effective permeability is stated as some numerical value at some given saturate conditions . Coefficient of sensitiveness between permeability and effective pressure of coal samples

有效渗透率用在一定饱和条件下的数值表示。煤样渗透率对有效应力敏感性实验分析

For a new well , it is an important work to determine initial reservoir pressure , effective permeability , summary skin coefficient , supplementary pressure loss and flow efficiency .

对于一口新井，确定原始地层压力、有效渗透率、总表皮系数、附加压力损失和流动效率，是试井的重要任务。

It becomes . necessary , therefore , to specify the fluid saturation when staling the effective permeability of any particular fluid in a given medium .

当陈述特定介质中任何一种液体的有效渗透率时，有必要具体说明液体的饱和度。

The distance of metal wire and ground is smaller , the effective permeability Leff , quality factor Q and resonance frequency SRF is also smaller ;

3金属导线离地的距离越小，有效电感值Leff、品质因子Q、自谐振频率SRF也越小；

The effective permeability is a relative measure of the conductance of the porous medium for one fluid phase when the medium is saturated with more than on fluid .

有效渗透率是在多孔介质被多种流体饱和时，对单一流体相孔隙介质传导性的相对度量。

The via size , the pad layer size and thickness is little effect the effective permeability Leff and resonance frequency SRF but seriously influence Q value .

通孔大小、覆盖层的大小及厚度对有效电感值Leff和自谐振频率SRF没有多大影响，但对Q值影响较大。

Alcohol treatment also causes shrinkage of swollen clay , so that the effective permeability of gas may be increased and the production ability of the gas well may be restored .

当有粘土存在时，还可使膨胀的粘土收缩，从而提高气体的有效渗透率，恢复气井生产能力。

The 3D composite results have been obtained by solving 2D fluid equations in porous media , and then using the composite results to compute the effective permeability of coarsen grid .

在粗化区内，利用直接解法求解二维渗流方程，再用这些解合成粗化网格的三维合成解，并由合成解计算粗化网格的等效渗透率。

By interpreting the build-up pressure data in 5 gas wells ( 6 testing layers ) , a deepen knowledge of formation pressure , effective permeability and polluted condition has been achieved .

通过对双坨子气藏五口井（6井次）的压力恢复资料进行解释，对该气藏的地层压力、有效渗透率及污染情况有了进一步认识。

Experiments have established that effective permeability is a function of the prevailing fluid saturation , the rock-wetting characteristics , and the geometry of the pores of the rock .

对多边形断层系的研究有助于泥岩压实、油气运移、泥岩中流体活动状态以及对深水砂体分布和几何形态特徵的分析等。

The results show that the current heating obviously improves the effective permeability of Co-based and Fe-based amorphous soft magnetic alloy ribbons and there exists the optimum conditions of current annealing .

结果表明：电流退火可以明显提高钴基和铁基非晶软磁合金条带的有效磁导率，且存在一个最佳电流密度、退火时间值，以使有效磁导率提高最大；