查询词典 coupling coefficient

The Airy function is used to calculate the plasma impedance and the grill-plasma scattering matrix is deduced, then the coupling properties of the HT-7 LHCD MJ launcher are studied with the antenna scattering matrix and the grill-plasma scattering matrix based on the liner coupling theory. The average power reflection coefficient, directivity, power spectrum are obtained for different edge plasma densities and for different phasings between main waveguides.

采用线型耦合理论，用艾黎函数计算了等离子体阻抗，推导出常规波导阵对等离子体的散射矩阵，并利用它和天线自身的散射矩阵研究了HT-7装置低杂波多结波导阵天线的耦合特性；计算了其平均功率反射系数、方向性系数和功率谱与等离子体边缘密度和主波导相位差等参数的关系。

The results show that they relate to the dipole-dipole coupling strength between two atoms and atom-field coupling constant and nonlinear coefficient of field.

结果表明，它们与原子间的偶极相互作用、原子和光场的耦合系数以及非线性耦合系数有关。

The coupling coefficient of transformer relates the transforming efficiency.

变压器的耦合系数决定着变压器传递效率。

In EMC study field,the interaction of two-antenna system is usually described with the coupling coefficient ,and this is a very effective method.

仿真计算给出了飞机上不同部位两天线间的耦合系数。

Due to the larger spin-orbit coupling coefficient and covalency of the former.

此外，对于X=Br的情形，电荷转移机制的贡献明显大于X=Cl的情形，这与前者具有更大的旋轨耦合系数相一致。

For the use of film inductor we made thin film transformer .It has goodfOreground though the coupling coefficient and efficiency are not very high.

作为薄膜电感的应用，我们制备了薄膜变压器，通过简单的测量可知虽然耦合系数和效率不是很高，但它还是具有较好的发展前景。

Through the analysis, we also find that the change of defect waveguide edge dielectric rod radius and wave guide\'s width are advantageous for enhancing the coupling efficiency of waveguide with the resonant cavity.3. The coupling relation of between the resonant cavity and waveguide has been analyzed, and according to the coupled mode theory, transmission coefficient expression of every port has been derived.

通过分析也发现适当改变缺陷波导边缘介质柱的半径、缺陷介质柱与波导间介质柱的半径及波导的宽度，都有利于提高波导与谐振腔之间的耦合效率。3、从理论上分析了谐振腔与波导间的耦合关系，根据耦合模理论导出了各端口传输系数的表达式。

We get the relations of system frequency, load resistance and electromechanical coupling coefficient to the conversion efficiency of piezoelectric transducer.

经过分析讨论后，得到了压电发电系统的工作频率、负载电阻和机电耦合系数与压电换能器能量转换效率的关系。

Lightning withstand level ; impulse grounding resistance ; coupling coefficient ; power frequency voltage ; tower ; electro-geometric model

耐雷水平；冲击接地电阻；耦合系数；工频电压；杆塔；电气几何模型

The lead-less piezoelectric ceramic composition is prepared through sintering at relatively low temperature, say, 1190 deg.c or even lower, and has good piezoelectric characteristic, practical plane electromechanical coupling coefficient kp, high Curie point and no lead and lead compound contained.

本发明的制备工艺能在较低温度下，如1190℃或更低温度下烧结无铅压电陶瓷组合物，使制备的无铅压电陶瓷具有好的压电性、可实用的平面机电耦合系数kp和高的居里温度，制备工艺过程中不含铅或铅的化合物。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。