查询词典 permittivity of free space

An improved method for measurement of complex permittivity using six-port reflectometer is presented. Error caused by incomplete superposition between the measured plane and reference plane, which is often in the case of conventional measuring method, is eliminated with the developed novel algorithm by separating the two planes.

提出了六端口反射计测量介质材料复介电常数的一种改进方法，新的算法使测量面与参考面分离，消除了传统测量方法中测量面与参考面无法完全重合引入的误差。

The relationship between multivalued spacing of relative permittivity,measuring frequency and length of the sample has been gained.

在微波和毫米波波段，介质复介电常数的测量按测量原理可分为谐振腔法和网络参数法两大类[1]。

Relative permittivity coefficient approaching 2 000 and relative permeability coefficient more than 1.4 are calculated respectively.

推算出脉冲形成线的相对介电常数接近2 000，相对磁导率大于1.4。

Parameter S11 was measured with microwave sensor and vector network analyzer, which was used to calculate relative complex permittivity.

制备了一定含水率不同浓度的CuCl2的PVA样品，用微波矢量网络分析仪和微波传感器测量S11参数，计算得到相对复介电常数。

The simple and accurate numerical solution of the transcendental equation is given. The relationship between multivalued spacing of relative permittivity, measuring frequency and length of the sample has been gained.

给出超越方程的简单准确的数值解法，得到了相对介电常数多值间隔与测量频率和样品长度的关系。

By comparing the theoretical and measured results, we find that the rectangular cavity perturbation method has relative high precision in complex permittivity.

详细介绍了矩形谐振腔微扰法的基本原理；通过对比标准物质的测量结果发现，矩形谐振腔微扰法测量复介电常数具有比较高的测量精度，且使用样品少。

The relative permittivity calculated from the high frequency value of impedance spectra,was used as the index to monitor properties variation with immersion time.

结果表明，涂层在流动的条件下加速失效，失效的原因是液体的流动加速了溶液中离子，而不是水分子向涂层中的渗透。

The interaction and interfacial polarization,as well as the present of polyaniline,were seen as contributing factors to the increase in the complex relative permittivity.

现代微波吸收材料正朝着介电和磁性复合材料方向发展，因为复合可以保持两组分的优点，可裁剪材料的电磁参数，拓宽微波

The relationship between water tree growth speed and its influence factors, such as aging time, frequency of electrical field, and relative permittivity, was studied in this paper.

按照建立的水树枝老化试验装置和方法标准，本文对低密度聚乙烯和聚甲基丙烯酸甲酯两种固体片状材料进行了水树枝老化规律的试验研究，重点研究了低密度聚乙烯材料中水树枝引发和发展的影响因素和规律，包括盐溶液的浓度对低密度聚乙烯中水树枝形态的影响，老化时间、外施电压频率、盐溶液的电容率与水树枝生长速度的关系。

Methods: rouleaux and cleaned blood by PBS were observed by microscope, and measured this relative permittivity at low frequency by using bioimpedance technique.

利用光学显微镜观察了叠连状态和磷酸盐缓冲液洗后分离状态的红细胞，并利用生物阻抗技术测量了两种状态下的介电常数。

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。