查询词典 constructive

The coherence and constructive interference with a widely-separated doublet viacollision-aided radiative excitation in an open four-level system is studied with thedensity matrix approach for the first time.

运用半经典理论首次研究了一个开放四能级系统中基于碰撞感应激发而产生的间距较大双能级间的相干及量子干涉效应。

In this thesis,we try to theoretically and experimentally investigate quantuminterference in atomic multi-level system and atom-molecule hybrid system to findthe conditions for generating quantum interference,the constructive or destructivefeature of interference,and the dependence of quantum interference on theenvironmental conditions.

本文旨在从理论和实验两方面对以往较少涉及的原子及原子—分子混合体系中多能级系统量子干涉效应进行研究，并着重探索量子干涉产生的条件、干涉相长或相消特性及其对外界条件的依赖关系等。

The competition between constructive interference and stimulated electronicRaman scattering via equal-frequency hybrid excitation in a Na2-Na system isexperimentally observed for the first time.

在基于等频混合激发而产生受激电子喇曼散射的实验中，首次观察到相干相长与受激电子喇曼散射之间的竞争效应。

The shaped pulses were shown to be phase-sensitive at intensities too low to access different higher electronic states, and so these pulses apparently steer the isomerization through constructive and destructive interference effects, a mechanism supported by observed signatures of vibrational coherence.

脉冲形状被证明是在太低以至于不能进入不同的较高电子态的强度上对相位变化灵敏的，因此这些脉冲机制通过构成和破坏干扰反应操纵着异构化作用，这种机制由观测到的相干信号支持。

In order to establish the boundary conditions to the equations, we have taken into consideration the fact that a constructive interference at the coupler assures that the laser radiations from both constituent lasers be directed to the coupler output port to which a reflection mirror, defining both laser cavities and executing the mutual injection between two lasers, is attached.

考虑到设置在光纤耦合器的一个输出端口的公共反射镜还担负着实施两个激光器间的相互注入的功能，利用光纤耦合器的变换矩阵以及光场相干叠加的要求，可以确定激光器速率方程组满足的边界条件。

Figure 7-3a depicts the phase shift necessary to create constructive interference along a line joining an arbitrary point P with the center of the array.

图7-3a描述了通过相干使合成波束沿空间任意点P和阵列中心连线所需的移相。

A review of the broader principles of interferometry can be found at this optics course website: A Touch of Theory: Constructive interference between the two arms of the interferometer occurs when: 2λnl=Δ Where Δl is the distance that one of the mirrors moves relative to the other mirror.

interferometry 的更加宽广的原则的回顾可能被发现在这个光学路线网站：理论接触：建设性的干涉在干涉仪的二条胳膊之间发生当： 2？

In this case, the geoacoustic waves satisfying the constructive interference prefer entially propagate along the confined aquifer, and the most energy of waves is trapped within the confined aquifer waveguide.

此时，满足相长干涉的地声波将择优沿着承压含水层传播，声波的大部分能量被捕获在承压含水层波导内。

The phase-shifts caused by reflection and transmission of the beam splitter were investigated by its eigen-martix.The general relationship between these phase-shifts of two splitted beams used for coherent combining was obtained,then the fact that when constructive interference occurs in one side of the beam splitter and the destructive interference has to occur in the other side was explained in the point of phase-shift.

利用分束器的特征矩阵研究了分束时产生的反射与透射相移，得到了两束相干光经过分束器分束后进行相干叠加时相移满足的普适关系，从相移的角度解释了分束器一侧发生相长干涉时另一侧必然发生相消干涉这一现象。

The relationship of the 7th cranial nerve and adjacent vessels was best visualized on the 3D TOF sequence and constructive interference in steady state sequence. The results were compared with the outcome of operation blinded.

HFS患者52例和健康成人20例进行MRTA检查，观察3D-TOF成像序列结合3D-CISS序列中脑桥小脑角池内面神经与周围血管的关系，并与手术结果进行盲法对照。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。