查询词典 reciprocal dielectric constant

The small concrete blocks and big concrete plate were constructed for the experiment. The dielectric constant and the attenuation index obtained by the first 1 and 1/2 waveforms reflected from the concrete surface are used as the parameters.

研究使用1GHz天线，经由实验分析采用抬高天线与受测物距30cm方式检测混凝土，将测得混凝土反射波形计算出介电常数，并选择反射脉冲波形1又1/2振幅面积来做为量测标的，将火害前后振幅面积计算求得衰减常数，比较火害前后混凝土之差异性。

Sol-gel Autoignition Synthesis, simple, self-cleaning and easy to undertake scale production, is the one of the prospective routes for manufacturing barium titanate powders.BaTiO3 nanopowders with the particle size 20-90nm, specific surface area 15m2/g, fine particle distribution, ratio of Ba/Ti 1.002 and with the dielectric constant more than 3000, were synthesized by SAS BaTiO3-TiCl4-ammonia-citric acid system.

本文自己组装的溶胶凝胶自燃合成系统，利用对Ba(NO_3)_2-TiCl_4-柠檬酸-氨水体系进行自燃合成研究，制备了具有纳米尺度的近球形BaTiO_3颗粒，粒径介于20-90nm之间，比表面积15m~2／g，分布范围较窄，Ba／Ti为1.002，器件介电常数最高达3000多。

The simulation indicates that dielectric constant warp is key factor to the design and preparation of chip mulilayer bandpass filter. The simulations were shown to be in good agreement with the experimental results.

模拟仿真表明：低烧材料的相对介电常数偏差是器件设计制备中的关键要素，仿真优化结果与LTCC试验样品的测试结果吻合较好。

With the analysis of the bond structure of the film as deposited and annealed, we can infer that the increased content of cage structure comprised of Si-O-Si bond with bigger bond angle may be the reason of decreased dielectric constant.

薄膜经过400℃热处理后，其介电常数由3.85降低到2.85，对其FTIR谱的分析指出，薄膜中鼠笼式结构比例的增加可能是薄膜介电常数降低的主要原因。

It shows that some organic liquids, which have higher dielectric constant, small viscosity, and methyl group bound directly with high negative charge atom, are appropriate carbon source for deposition DLC films.

介电常数比较高的、粘度小的、甲基基团直接与极性基团连接的有机介质是合适的液相沉积类金刚石薄膜的碳源。

The sample with 5% ceria sintered at 925℃ exhibits high relative density (99.1%). The dielectric constant and loss as well as thermal expansion coefficient are 6.7, 0.09% and 3.42×10^(-6)K^(-1), respectively.

添加5%氧化铈的样品在925℃烧结后，其相对密度达99.1%，其介电常数、介电损耗和热膨胀系数分别为6.7、0.09%和3.42×10^(-6)K^(-1)。

The dielectric constant and thermal expansion coefficient of samples increase with the increase of ZnO content.

样品的介电常数和膨胀系数随着氧化锌的增加而增加。

We have made many experiments to measure complex dielectric constant in different quantity of salt.

实测结果表明通过复介电常数的测量可以实现对污秽物等级的区分。

The results show that the thermal expansion coefficient, dielectric constant and hardness of the composites increase with the increase of Sr-celsian content.

摘 要：采用电子陶瓷工艺制备了一系列玻璃/锶长石陶瓷复合材料，并对复合材料进行X射线衍射分析、扫描电镜观察和性能测试。

Non-linear dielectrics are the insulation dielectrics whose electric conductivity or/and relative dielectric constant change with electric field.

非线性绝缘介质是指其电导率或相对介电常数随电场变化而变化的绝缘介质。

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。