查询词典 evanescent

The paper presents a linear transient solution for the solitary wave generated by a piston-type paddle in a finite flume based on the boundary condition derived by Dean and Dalrymple (1991). The wavemaker problem is simplified by decomposing the wave potential into two parts. One is the evanescent wave and the other is progressive wave. The possible solution for the evanescent wave is expressed in form of the Fourier series.

本文根据Dean与Dalrymple（1991）描述造波水槽内部之线性边界条件，将水槽内部之流速势分为振荡波与前进波以简化问题，再以Fourier级数展开，可将问题化为二非齐次常微分方程式，在给定造波初始条件的情况下即可解析有限长度造波水槽自静止开始造波一段时间后停止之线性暂态解。

It is presented to calculate the complex index,the complex E vector and the complex angle of refraction of evanescent wave in crystal.

本文研究了晶体界面上的全反射。我们如何计算迅衰波的复折射率、复折射角和复电场矢量。

Faster than light ; microwave anomalous propagation ; tachyon ; quantum tunneling process ; evanescent mode ; negative group velocity

超光速；微波异常传播；快子；量子隧道过程；消失模；负群速

Based on the excitation mechanics of evanescent-wave pumped WGM fiber laser and the analytic asymptotic formula to determine the resonant positions of a WGM,the observed experimental results are well explained.

根据消逝波激励的WGM光纤激光的激励机制，结合圆柱型微腔中确定WGM共振位置的解析渐近公式，合理地解释了观察到的实验结果。

It is shown that while using these arrangements quite a large change in the resonant length and Q-factor of the cavity resonator will be obtained ,when a dielectric resonator is inserted into the evanescent guide.

这两种安排都能使置入介质谐振器前后的谐振腔产生相当大的谐振长度和Q因子的变化，从而能获得准确的介质谐振器无载Q因子和介电常数。

Microwave measurement ; Dielectric resonator ; Cavity resonator ; Evanescent waveguide

微波测量；介质谐振器；谐振腔；截止波导

Because the EPWE method is designed to derive easily the evanescent modes which can be used for the matching boundary conditions, we can get the transmittance for the semi-infinite photonic crystal. In this study, some interesting behaviors can be observed, for example, the transmittance is very sensitive to the surface we chose. The transmittance even can be almost 1 or 0 when the cutting planes of photonic crystal are different for the specific frequency. In this proposal I want to see the reason of the total reflection which seems to be conflicted with the existence of the propagation modes at that frequency and what will be happened when we consider the finite thickness case.

在EPWE 的方面，在这三年的时间里，我会尽量完成有限厚度的光子晶体的计算，因为以前主要算的是半无穷的光子晶体的计算，当中也看到了一些很有趣的行为，比方某些频率下，其穿透率与它的介面有很大的关系，因为，当光子晶体的切面不同，在特定频率下，其穿透率可以由几乎全穿透变成全反射，这里我想看看如果考虑厚度，到底会对系统有什麼影响。

Whispering-gallery-mode laser was observed in the cylindrical microcavity by evanescent wave exciting and coupling dye gain.

采用近轴向消逝波抽运的方法，使激光的染料增益局限于抽运光在染料区的消逝场范围内，极大地提高了消逝波耦合柱形微腔的抽运效率。

567Enlightenment, on its side, equally isolates the actual world as an entity forsaken by Spirit, isolates determinateness as unmoved finitude, as if it were not even a moment in the spiritual movement of essential being, not nothing, but also not something that absolutely is, but something that is evanescent.

贺译（ p102－103）：至于启蒙呢，在它这一方面也是一样，它同样把现实孤立为一种被精神遗弃了的本质，把规定性孤立为一种固定不移的有限物，仿佛既不是本质的精神活动中的一个环节，又不是无，也不是一种什么自在自为地存在着的东西，而勿宁是一种消逝着的东西。

It has become the symbol for all that is transient and evanescent in life.

它已成为所有的符号是短暂的昙花一现的生活。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。