查询词典 dielectric

It was found that the hBN-resin possesses better dielectric properties in comparison with conventional underfill resins containing SiO2 filler.

并对电气性质、热性质、硬化动力学、接著强度及黏度进行探讨。与商用含二氧化矽之底胶比较发现，当hBN添充量在15 vol。

The effective elastic, electric, dielectric, thermo-conductive and other properties of composite materials reinforced by ellipsoidal, spherical multi-layered inclusions, thin hard and soft inclusions, short fibers and unidirected multi-layered fibers are considered.

有效弹性，电，介电，热复合材料的导电性和其他财产的椭圆，层层包裹，薄软硬夹杂，短纤维和unidirected多层纤维球多被认为是增强。

In the frequency domain, the transmission ratios of electromagnetic Gaussian pulses are computed and we analyzed the effect on defect mode properties of unmagnetized photonic crystals produced by its periodic constant, parameters of plasma and parameters of the defect layer, such as its dielectric coefficient, length and position.

从频域角度分析得到微分高斯脉冲的透射率，并讨论该光子晶体的缺陷层介电常数、厚度、位置、光子晶体的周期常数和等离子体参数对其缺陷模的影响。

It was found that the α and β peaks of the dielectric loss tangent coincided like a single peak and with higher permittivities,if the unneutralized copolymers were used as the parent materials.

离子化后，α和β两峰独立存在；随离子化程度提高，εr值下降，α和β峰都向高温移动；随同价反离子的半径增加，εr值增大，β峰向低温移动，但α峰变化不大。

The second part was to test the appearance, ingredient analysis, surface potential, thermal conduction properties, and magnetism of the nano composite fluid prepared from the parameters. The experiment found that unoxidized particles, Ag, Cu, Fe, and Ni appeared round. If combined with oxygen in water as oxides, the nano particles would grow toward certain directions. In copper/iron nano composite fluid, FeO appeared cubic, Cu2O appeared coniferous. In silver/iron nano composite fluid, FeO was polygonal. In dielectric potential detection, the nano composite fluid was likely to aggregate and deposit, except for silver/iron set. In other sets, the pH of silver/cobalt nano composite fluid was 7, surface potential was 21.21mV; the pH for silver/nickel nano composite fluid was 6.5, surface potential was 21.04mV; the pH for copper/iron nano composite fluid was 7, surface potential was -30mV. The fluid particles of the three sets could all maintain suspension of 2 weeks or more. For thermal conduction, the silver/nickel, nano composite fluid showed the best thermal conduction. Under temperature of 30℃ fluid weight conduction of 0.4%, the thermal conduction increase was 26%. For magnetic detection, except for silver/iron nano composite fluid, the nano particles of other three sets were paramagnetic, and all four sets were soft magnetic nano composite materials.

第二部分。将由较佳制备参数所产出的奈米复合流体，进行形貌外观、成分分析、表面电位及热传导性质实验与磁性检测；在奈米颗粒的形貌部分，经实验发现Ag、Cu、Fe、Ni等未氧化的颗粒皆呈现近似圆形，而若与水中的氧结合形成氧化物，奈米颗粒则会朝特定方向成长，在铜/铁奈米复合流体中FeO为四方体结构、Cu2O的颗粒是针叶状，在银/铁奈米复合流体中FeO则为多边形结构；而介面电位检测方面，结果显示经本制程所产出的奈米复合流体除银/铁奈米复合流体这一组较容易聚集沉淀外，其他三组中银/钴奈米复合流体的pH值为7，表面电位为21.21mV，银/镍奈米复合流体的pH值6.5表面电位为21.04mV而铜/铁奈米复合流体的pH值为7时表面电位约在-30mV，且此三组流体颗粒皆能维持悬浮性2周以上，悬浮性较佳；热传导实验部分，四组奈米复合流体中以银/镍奈米复合流体在增进热传上效果最佳，在温度30℃及流体重量浓度0.4﹪条件下热传导系数增进达26﹪；磁检测方面，除了银/铁奈米复合流体外，其他三组奈米颗粒皆属顺磁性，且这四组奈米复合材料都是属软磁性。

The dielectric function and complex refractive, reflectivity, and absorption coefficients of anatase TiO2 dominated by electron interband transitions are analyzed in terms of the precisely calculated band structure and density of states.

利用精确计算的能带结构和态密度分析了电子带间跃迁占主导地位的锐钛矿相TiO2的介电函数、复折射率、反射率和吸收系数，理论计算得到的结果与实验测量结果基本一致。

By this solid-contacting configuration, it was found that the spectra of dielectric function measured at the metal-substrate interface do change with the refractive index and differ from those measured at the metal-air interface in both the Drude and interband transition regions.

采用不同折射率的梯形棱镜作衬底，室温下用热蒸发或电子束蒸发的方法，在棱镜底面生长一系列金膜和银膜，使用椭圆偏振光谱方法分别测量了金属与空气界面及金属与衬底界面的介电函数谱。

Consequently, numerical results are used to reveal the effects of the dielectric superstrate to the characteristics of the antenna and are compared with the results from pub-lished references and other numerical solutions for demonstrating the accuracy of the analysis.

最终，通过数值结果揭示出了覆盖介质层对天线特性的影响并且与已发表文献及其他数值方法的结果进行对比，证明了方法的正确性。

The longitudinal slots are cut in the broadsides of the rectangular waveguides which are conform with a large circular cylindrical conducting surface covered by a dielectric layer.

本文研究覆介质导体大圆柱表面矩形波导宽边轴向缝隙共形阵列天线的设计理论。

The effect of sintering temperatureand calcining temperature on the dielectric properties of MgO-TiO_2-CaO ceramics are studied.

文中研究了烧成制度对NgO—TiO2-CaO系统介电性能的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。