波导

The radial force balance equation for the self-electric field and self- magnetic field of the relativistic electron beam is used to calculate the angular rotation frequency of the relativistic electron beam propagating through the cylindrical wave guide filled with nonneutral plasmas.

首先利用相对论电子束的自电场与自磁场所产生的径向力平衡方程，计算出相对论电子束在稳态非中性等离子体填充的柱状波导中传输的转动频率。

The original large computation domain is divided into several nonoverlapping subdomains.

采用这种混合方法分析了波导问题，将原求解区域分解为若干个非重叠的子域。

Starting with the crystal optics theory, the phase change, generated by photoelastic effect, is derived.

详细研究了相位调制型波导传感器的传感机理，分析了应力应变效应和温度应变效应引起的相位变化机理。

Deduce the expression the ponderomotive force. The self-consistent nonlinear equations are worked out. The propagation characters are discussed.

推导了高功率微波对等离子体的有质动力的表达式，得出了自洽的非线性方程组，并对等离子体填充波导中的传播特性进行了理论分析，数值计算和粒子模拟。

The results show that the ponderomotive force of high-power microwave would affect the dispersion,make the distribution of microwave different from Bessel distribution,and drive the plasma to the region where the microwave field is lower.

结果表明高功率微波的有质动力将影响微波色散特性，使微波场强分布偏离Bessel分布，并对等离子体有排开作用，当场强足够大时可将波导中心处等离子体排空形成低密度通道。

Since the presence of a out coupling hole alters the transverse structure of the intra cavity light in a FEL oscillator ,the finite element method is used to the optical field equations and a good proximation is made for the out coupling process in the mirror,and then some numerical results are given.

针对孔耦合波导自由电子激光振荡器腔内光场横向特性，应用有限元法于慢变光场方程，并对输出腔镜上孔耦合过程加以较准确的描述，而后通过对数值结果的分析比较，说明这一模拟方法较好地描述了孔耦合引起的腔内光场横向结构的变化发展特性，改善了模拟结果。

The setting method of time-domain excitation sources is studied in this paper in order to analyzing the characteristic of waveguide by using the Multidomain PseudoSpectral Time-Domain algorithm.

摘要本文首先研究了多区域时域伪谱算法应用于波导问题分析时的时域激励源设置方法。

The simulation analysis has indicated that the bandwidth of ridged waveguide slot array has been greatly improved, and it is consistent with the result of thoery.

仿真分析表明脊波导裂缝阵列的带宽有较大的改善，这与理论分析的结果是一致的。

Using finite element method, this paper investigates the influences of two deformed symmetrical double ridged,, waveguides on their transmission characteristics.

文章采用有限元法研究了圆形和椭圆形两种变形对称双脊波导对传输特性的影响。

A new travelling light modulator using single ridged waveguide as microwave circuit is designed.

设计了一种采用单脊波导作为微波电路的新型行波光调制器。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。