查询词典 coherent stack

Two coherent waves which have the same amplitude,frequency and wave speed propagate in opposite direction along a line.So they overlap is a special interference phenomenon.

驻波是由振幅、频率和传播速度都相同的两列相干波，在同一直线上沿相反方向传播时叠加而成的一种特殊形式的干涉现象。

As the lamest of lame duck administrations quacks its way towards the finish, surely the Chinese did not expect to find anything coherent.

在布什政府这只瘸得最厉害的跛脚鸭步履蹒跚，走向终点之际，中国人总不至于指望找到什么有用的东西吧。

Liquid solutions of lasing dyes are versatile sources of coherent tunable radiation, with many applications in different fields.

通常染料激光的工作介质是染料溶液，这就需求大量的有机溶剂，因而限制了染料激光在一些技术领域的应用。

A uniform coherent light source, a filter and a receiving screen are designed in computer.

在计算机上模拟一个均匀相干光源、个滤波器和一个接收屏。

A uniform coherent light source, a filter and a receiving screen are designed in computer.

在计算机上模拟一个均匀相干光源、一个滤波器和一个接收屏。

First, utilizing the interpolate method, the real array can be virtually shifted under coherent interference, several covariance matrice are gererated after the virtual shifting. By averaging the previous results, a new covariance matrix is obtained. It is a full rank matrix.

软件简介：提出一种新的相干波束形成方法，利用内插变换对相干背景下的真实阵列进行虚拟平移，得到多个虚拟平移后的信号协方差矩阵；对其进行平均后，所得到的相干信号协方差矩阵具有满秩性。

At extremely low temperatures atoms can aggregate into so-called Bose Einstein conden-sates forming coherent laser-like matter waves.

在极低温下原子可以聚合成所谓的玻色爱因斯坦冷凝-联署形成相干激光般的物质波。

In this lecture, the study content of nonlinear atom optics and their experimental results and recent progress are introduced in some detail, which includes atomic solitons, four-wave mixing, slow light group-velocity and superluminal light, superfluid and vortex, Josephson effect and phase-coherent amplification of atomic matter waves, and so on

文章重点介绍了非线性原子光学的研究内容、实验结果及其最新进展，主要包括原子孤子、原子物质波中的四波混频、光速减慢与负群速现象、超流及涡流、Josephson效应和物质波的相位相干放大等。

Our investigation has shown that:ⅰ there was an interference effect between the incident and reflected matter waves as all the atoms in BECs were coherent;ⅱ considering the rotation of a vortex, the nonuniform velocity distribution along the surface would play an important role in the quantum reflection process. For example, they would change the characteristics of the interference fringes between the incident and reflected matter waves;ⅲ the reflected vortex became unstable for sufficiently low incident velocity or strong interaction. This sort of instability physically originated from dynamics excitations induced by the atomic interaction in the quantum reflection process.

我们的研究表明：ⅰ由于相干性质的存在，在涡旋与固体表面相互作用的过程中，被固体表面反射回去的部分与正在入射的部分在空间叠加后一定会产生清晰的干涉条纹；ⅱ由于各向异性的速度分布，涡旋的反射率也呈各向异性，因此反射回来的部分与入射部分形成的干涉条纹宽度以及疏密程度与入射速度以及速度各向异性的程度有关；ⅲ由于玻色凝聚体中原子间相互作用的存在，反射过程中凝聚体会产生激发，破坏涡旋的结构，使得反射后的涡旋不再是中心对称。

Two recent experimental breakthroughs in the field of atomic physics are reported:the realization of a well-collimated,widely tunable,quasi-continuous wave atom laser,and the generation of matter waves via coherent multi-wave mixing.

邓鲁摘要：介绍了当前原子物理实验研究的两项最新突破：准连续全方位可调谐原子激射器以及世界第一个非线性原子光学实验。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。