查询词典 constructive interference

It employs the principles of constructive and destructive interference of light, normally used to create holograms, to create high-resolution two-dimensional images.

它采用的是一般在建立全息图像时用到的建设性和破坏性的干扰特点的光原理。用它来建立高清晰度的二维图像。

The fundamental principles underlying the concept of electronic beam steering are derived from electromagnetic radiation theory employing constructive and destructive interference.

电子波束控制的基本原理来自于电磁场理论的相干作用。

This article intends to explore the hot issues in national and international emotional theories and national suicide crisis interference so as to produce some constructive advice on suicide interference in colleges and universities.

本文通过对国内外情绪理论、国内外危机干预现状等热点问题的探讨，为高校自杀危机干预提供一点有益的建议。

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。

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 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。

The first disadvantage of MMI device is wavelength sensitive, which leads to restricted applications. To reduce the wavelength insensitivity in optical network applications, the demand of light source with a specific wavelength is needed, especially for power splitters. For this reason, a wideband criterion for MMI splitter is proposed. The basic principle is based on reducing the interference length difference and making it shorter than the spot size for constructive mode interference. Simulation results show the spectra of proposed MMI splitter is wide enough (1.26-1.61um) to cover the fiber communication band and the size of the splitter is more compact than that of the conventional MMI or Y-branch splitter.

多模干涉元件的第一个缺点为波长敏感，此缺点会限制其在实际上的用途；因元件在网路上的应用时，通常都需要降低波长敏感性，以减低对光源波长准确性的要求；有鉴於此，本论文提出多模干涉分光器的宽频标准；基本原理是建立在缩短其多模干涉区的长度差，并使之小於建设性干涉的光点大小；透过模拟后发现，操作频宽可涵盖光纤通信全波段(1.26-1.61um)，且长度小於Y形分支结构的分光器。

The extracted P-wave is reverse-time extrapolated and imaged with a P-velocity model using a finite difference solution of the scalar wave equation, the extracted S-wave is reverse-time extrapolated and imaged similarly, but with an S-velocity model, and converted S-wave data requires a polarity correction prior to migration to ensure constructive interference between data from adjacent source.

在模型中，每个网格点的纵、横波成像时间，为震源到该网格点的纵波初至时间。利用纵波速度模型和声波传播方程的有限差分解，对反射纵波进行逆时延拓和成像，利用横波速度模型和声波传播方程的有限差分解，对转换横波进行逆时延拓和成像，并在偏移前进行极性校正。

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。