查询词典 permittivity of free space

The possible mechanician of the dielectrical relaxation effect in a low temperature and moisture absorption is analysed and discussed with SEM, especially from the measured result of the relaxation character complex permittivity ε′,ε of dry and mo...

本研究特别从干燥与吸湿薄膜低温松弛特性——复介电系数ε′、ε测量结果，利用SEM分析与讨论了吸湿低温介电松弛效应可能的机理，并用扩展Debye松弛理论给予理论解释。计算了松弛活化能。

The effective permittivity can be used to describe the molecular polarization of the mixture in the reaction and consequently be used to calculate the transmission and absorption of microwave in the reaction mixture.

由于等效介电系数常常被用来描述在化学反应中微波的吸收和传输情况，因而，化学反应中反应物的等效介电系数就成为微波化学研究的关键问题之一。

This interaction causes the dipole moment of the cluster to be dependent upon the spatial arrangement and relative permittivity of the particles and upon the cluster size.

这致使簇的感应偶极矩与簇的几何结构，大小以及颗粒的介电常数等参量有关。

At radio-frequencies the dielectric permittivity of cell suspensions are monotonic function of the measuring frequency and cell density.

微生物的存在会改变发酵液的电特性，发酵液在无线电频率范围内的电容率增量是测量频率和生物量浓度的函数。

Based on that the dielectric permittivity of cell suspensions is monotonic function of the measuring frequency and cell concentration at radio-frequencies,a new method for detecting cell concentrations on-line and in-situ is proposed .

利用发酵液在无线电频率范围内的电容率是测量频率与菌体浓度的函数，提出了一种实时在线检测发酵过程菌体浓度的新方法，设计了检测传感器和自动检测系统，并且实验验证了该检测方法及检测系统的可行

The functional relation between incident angle and refractive angle of energy flow is obtained. According to this relation, we can restructure the refractive angle as negative or positive readily by selecting suitable permittivity and permeability tensors.

导出了电磁波的入射角和能流折射角之间的函数关系，根据此关系可方便地选择合适的介电张量和磁导率张量，使特定入射角所对应的折射是正或是负。

Luneberg lens is a spherical lens which its permittivity varies with normalized radial coordinates. It is fabricated by using different homogeneous dielectric centrically layered media. The lens can focus a parallel beam of rays from any direction exactly at a point on the surface. If it is made by adding a reflecting surface "metallic cap", it is called Luneberg lens reflector. It can reflect incident wave into plane wave in incoming direction. It is usually applied in antenna, radar reflector,satellite-based, and mobile-communucation.

龙伯球透镜为一种介电系数与半径成一固定比例的球形透镜，大部分是由数层不同介电系数介电质组合而成，而其主要特性能够把入射波聚焦到球表面一点，假使在透镜表面处镀上一圆锥角金属层即为龙伯球透镜反射器，能把入射波依平面波的型态反射回原入射端，通常用於天线、雷达、卫星通讯、军事等方面。

Three existing equations can be used to calculate the complex permittivity of the material.

该方法对高介电常数材料的测试具有广泛的应用前景。

A neural network method is applied to microwave tomography to reconstruct the image of complex permittivity in this paper.

提出将一种神经网络的方法应用于微波断层成象，重建复的介电常数图象。

One advantage of this model is it is not limited in the relative permittivity of particles, and therefor may be widely used.

分形模型的优点之一是不受颗粒介电特性的影响，具有广泛适用性。

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。