采用正反分析法建立了天然气管网管段阻抗系数优化反演的数学模型。
A pipe hydraulic resistance coefficient model for natural gas pipeline network is established based on positive and negative analytic approach.
本文用集总等效网络的观点对速调管双间隙输出段间隙阻抗系数的分布和变化规律进行了分析。
In this paper, from the lumped circuit elements point of view, the distribution of gap interaction impedance coefficients of resonant coupled cavity output section of broadband klystrons is analyzed.
并且伴随快速搅拌强度的增大，与沉后水浊度相比，混凝剂残余量及过滤阻抗系数改善更加显著。
With the increasing of rapid agitate strength, coagulant residue and filter impedance index STI of the precipitated water would improve more remarkably than turbidity.
在有些应用中，例如监测电化电池和测量半导体的电阻系数，则可能必须进行高阻抗电压切换。
High impedance voltage switching may be necessary in applications such as monitoring electrochemical cells and measuring semiconductor resistivity.
如果阵列的互阻抗(或互耦系数)矩阵确知，理论上可以精确补偿互耦的影响，从而实现极低副瓣接收。
If the mutual impedance or mutual coefficient matrix of an array is perfectly known, one can completely compensate the effect of mutual coupling and realize the desired low sidelobe level in theory.
介绍了微波多层板所用基材的性能参数，重点阐述了材料的介电常数、介质损耗、热胀系数、特性阻抗对多层板性能的影响。
The effect of dielectric constant, dielectric loss factor, coefficient of thermal expansion (CTE)and characteristic impedance of substrate materials on properties of MMB are mainly discussed.
本文介绍了缆皮理想屏蔽系数的确定方法，同时给出了由钢带内的磁通引起附加阻抗的计算公式。
This paper shows the methods for determining the ideal Shielding factor of cable sheath, and gives the formulas for calculating the additional impedance due to magnetic flux in the steel armor.
由于对象模型和关系模型之间存在一种基本的阻抗不匹配，导致使用关系数据库的面向对象系统开发人员通常要花费大量的时间来将对象持久化。
Because a kind of basic mismatch exists between object model and relation model, it leads to that object systematic developer spend a large amount of time taking object persistent.
其结果包括阵列单元的输入阻抗、空间波辐射效率、方向性系数和辐射方向图等。
The results for element input impedance, radiation efficiency of space wave, directivity and radiation pattern are presented.
通过计算发现，随着中间电极角度和地电极角度增加，有效折射率、特征阻抗同时减小，导体损耗系数也随之减小。
The calculation results have shown that when the angles of the center electrode and the grounds decrease, the effective index, the characteristic impedance, and the conductor loss all decrease.
虚拟支路的导纳参数可由目标分流系数、戴维南等效阻抗及原潮流越限支路导纳获得。
Admittance parameters of the virtual branch can be obtained by object shunting coefficient, Thevenin's equivalent resistance and the admittance of the primary branch of power flow off-limit.
提出了TCSC的阻抗灵敏度系数isf的概念，并论证了阻抗灵敏度系数是决定TCSC阻抗可控范围的基本因素。
The concept of impedance sensitivity factor (ISF) of TCSC has been developed. It has been proved that ISF is the main factor determining the impedance controllable range of TCSC.
对微波而言，油和水的波阻抗相差很大，其反射系数也相差很大。
Since water and oil differ greatly in wave impedances, their reflection coefficients for microwave are different.
由此计算了阶梯鳍线反射系数的模值、特性阻抗等参数，为波导-阶梯鳍线变换段的匹配设计提供了有价值的参考。
The parameters of reflection coefficient magnitude and characteristic impedance are calculated. They are very useful for designing the wave guide to fin li...
给出了求各路分配节和变阻节特性阻抗以及隔离电阻的计算公式，其中含有一个可供灵活选择的任意常系数。
The equations used to find the values of the wave impedances of the dividing sections and the impedance-transforming sections as well as the isolating resistances are given.
界面的反射系数取决于界面两侧岩石的声阻抗差。
The reflection coefficient of an interface depends on the contrast in acoustic impedance of the rock on either side of the interface.
利用短时矩形脉冲电流对近零磁致伸缩系数钴基非晶态合金带进行退火处理，得到约114%的巨磁阻抗变化率。
The GMI ratio of about 114 % is obtained in near zero-magnetostrictive Co-based amorphous alloy ribbon annealed by short time rectangular pulse current.
因此，论文选用理想混合物模型来预测其密度、体积声速、特性波阻抗(以后在本论文中简称波阻抗)、比热、格林·爱森常数、冲击雨贡纽系数等物性参数。
So, the ideal mixture model is adopted to estimate their densities, volume velocities, wave impedances, specific heats, Gruneisen parameters and Hugoniot coefficients.
叠后子波处理（求反射系数的估计）是波阻抗反演的第一步。
The post-stack wavelet processing (estimate of determining reflectivity) is considered the first step to perform the acoustic impedance inversion.
通过对试验结果分析表明，炸药岩石阻抗最优匹配区并非在其匹配系数等于1处，而是在1.6～1.65之间，并提出了以爆破的破碎圈半径大小来评价炸药岩石阻抗匹配情况的建议。
The results of experiment indicated that the best matched impedance is not at a point when coefficient is 1 but in the range of 1.5 to 1.65. A proposal was made that radius…
面向对象模型基于方法学原理，关系数据模型基于集合论原理，理论基础的不同导致了两种模型之间的阻抗不匹配。
The Object oriented model is built on methodology, while the relational data model is on basis of the set theory. The difference principal between the two models leads to the dispatch problem.
面向对象模型基于方法学原理，关系数据模型基于集合论原理，理论基础的不同导致了两种模型之间的阻抗不匹配。
The Object oriented model is built on methodology, while the relational data model is on basis of the set theory. The difference principal between the two models leads to the dispatch problem.
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