查询词典 reciprocal dielectric constant

At the transition temperature, dielectric constant and loss are the smallest. By relaxation time and dielectric properties, we realize the transition between of ferromagnetism and paramagnetism.

由弛豫时间与介电性质随温度变化可以了解材料在顺磁性和铁磁性转换过程中所材料内部改变情况。

In Chapter Ⅴ, we present a theoretical study of the dielectric behavior of cell suspensions by the Bergman-Milton spectral representation of the effective dielectric constant.

计算还发现即使在系统色散参数趋于零的情况下，表面周期结构也将会引进有效的色散关系，破坏表面模振荡频率的简并。

Incipient ferroelectrics or quantum paraelectrics constitutes a very unique subject of current interest due to its high value of dielectric constant , low dielectric losses and high degree of tenability by the external electric field and temperature .

等由于其高介电常数，低介电损耗，对外场和温度高度的可调协性等独特的性质和应用价值一直是一类人们广泛研究的晶体材料。

A kind of BaTiO3/epoxy composite material with high dielectric constant and low dielectric dissipation was prepared by mixing method. The composite was prepared with BaTiO3, epoxy resin CYD128, 4, 4-diaminodiphenyl sulphone and nitrile-butadiene rubber.

以BaTiO3、CYD128型环氧树脂、丁腈橡胶和4，4-二氨基二苯基砜为原料，采用共混法制备了具有高介电常数和低介电损耗性能的BaTiO3/环氧复合材料。

It was found that the dielectric constant and dielectric loss of unpoled samples is higher that those of poled samples.

结果表明：极化后的介电常数和介电损耗低于极化前。

The dielectric constant and dielectric loss of unpoled and poled samples increased with the increase content of BKT.

极化前和极化后的介电常数和介电损耗随BKT含量的增加而增加。

The high dielectric constant, low dielectric loss and leakage current density may originate from the good Purity and crystallinity of the films.

较高的介电常数、较低的漏电流密度可能源于良好的纯度和结晶度。

By studies of electrical and dielectric properties of the cubic ZnMgO, the dielectric constant and low leakage current density for the cubic ZnMgO films was attained.

通过对立方相ZnMgO晶体薄膜的电学特性的研究，获得了ZnMgO晶体薄膜的介电常数和漏电流特性。

It was found that sialon thin films deposited in ar and n2 atmosphere have higher relative dielectric constant, dielectric dissipation and leakage current density than those deposited in ar and o2 atmosphere.

发现在ar/n2气氛中沉积的sialon薄膜具有较高的介电常数，漏电流密度和介电损耗也稍大。

The results show that glass ceramics with thermal expansion coefficient of 5.11×10^(-6)℃, major phase of α-cordierite and ε=5.5, tan σ=2.1×10^(-4) can be prepared by the addition of 3.6% alkalis (Li2O+Na2O), and Li2O occupies 1.8%. With Li2O substitution for Na2O, spontaneous crystallization is obviously enhanced, and temperature of the first crystallization peak decreases from 950℃ to nearly 900℃, but the crystallization temperature of the second peak was not varied. With the increase of Li2O content, mixed alkali effect can be observed from the thermal expansion coefficient and dielectric loss curve which decreases first and then increases. Dielectric constant decreases monotonously with the increase of Li2O content.

研究结果表明：Li2O和Na2O总含量为3.6%，其中Li2O含量为1.8%时，微晶玻璃以α-堇青石为主晶相，热膨胀系数为5.11×10^(-6)℃，微波频率下介电常数ε为5.5，介电损耗tanσ为2.1×10^(-4)；随着Li对Na的取代，玻璃的析晶能力增强，初始析晶峰温度从950℃降至900℃左右，但没有降低第二析晶峰温度；随着Li2O含量增加，热膨胀系数及介电损耗都出现明显的混合碱效应，曲线呈现先降低后升高的变化趋势；样品的介电常数随Li2O含量增加单调降低。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。