查询词典 permittivity of free space

Based on the model, retrieves the relative permittivity and relative permeability of the coating- material by iterative inversion of a neural network from the measured antenna temperature.

在此模型的基础上，用神经网络迭代法从测得的天线温度反演了隐身涂层材料的的相对介电常数、相对磁导率。

The interference produced on secondary cable is discussed in this paper.The effects of soil resistivity, relative permittivity, the density and area ofgrounding network are described.

论文对端部连接在地网上的二次电缆受到的干扰进行了分析，计算了土壤电阻率、相对介电常数、地网的疏密程度以及地网面积对电缆端部芯皮电位差的影响。

The results showed that relative permittivity of PLZST/PVDF composite with mass ratio of 3:1 could increase from 47.7 to 56.0 after polarized at 110℃ for half hour by electric field of 15kV/mm.

结果表明：质量比3：1的PLZST/PVDF复合材料在110℃，极化电压为15kV/mm的条件下极化0.5h，可使其相对介电常数从47.7增大到56.0。

Especially,the complex relative permittivity of the coated barium ferrite composite was much higher than that of the uncoated barium ferrite particles in the most frequency range.

六角晶系铁氧体具有较高的饱和磁化强度、特殊的六角片状结构、良好的化学稳定性和耐腐蚀性能，在微波吸收等领域具有广泛用途[2-3]。

On this basis,, Least-squares method is adopted to decompose the total current according to applied macro-field strength, and then the equivalent conductivity under AC and relative permittivity of nonlinear composite dielectric are obtained.

在此基础上，利用时域最小二乘法依据外加电场对总电流分解而获得非线性介质的交流等效电导率和相对介电常数。

Most of polar polymers possess comparatively high values of relative permittivity, which means that both bonding and non-bonding electrons in the molecular structure of these polymers can be easily displaced by external electromagnetic force.

大多数极性聚合物具有相当高数值的相对电容率，其意味着这些聚合物的分子结构中之结合与非结合电子两者，可以轻易以外部电磁力加以排出。

With increasing the ceramic volume fraction,d_(33) increased until it reaches a saturation value the and relative permittivity constant rose linear.

压电常数d_(33)随着纤维体积含量的增加迅速增大，最后趋于饱和，介电常数随着纤维体积含量的增加几乎呈线性增加。

The above-mentioned compounds display the relative permittivity of around 10~20, the quality factor of around 1000~30000 GHz and the temperature coefficient of resonant frequency of around -9~-100ppm /℃.The compounds are sintered in the temperature range of 700 ~ 1100oC.

以上化合物相对介电系在10~20之间，化合物Q×f约为1000 ~ 30000、温共振系为-9~-100ppm /℃烧结温均并高在700~1100oC之间。

The relative complex permittivity of Starch/Polyvinyl alcohol blend sample was measured with short circuit coaxial line method in different water content and ion concentration .

采用短路同轴线法测量了淀粉聚乙烯醇共混体样品，在含水率、离子浓度不同时的复介电常数，研究了频率、离子浓度、含水率与相对复介电常数的关系。

This thesis with cold-shrink 25kV cable terminal connector components as the main structure, used finite element analysis method to simulate the following situations (1) with different thickness of stress relief material (2) with different relative permittivity of stress relief material,(3) different geometries of the stress cone ,(4) of a grounding embedded electrode to monitor effects of electrical stress grading.

中文摘要本文以25kV冷缩式电缆终端接头元件为主要架构，使用有限元素分析法模拟(1)电应力缓解材料的厚度改变(2)电应力缓解材料的相对介电系数改变(3)不同的应力锥几何尺寸(4)埋置接地电极时的电场与电位分布状况。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。