查询词典 coherent

In section 1 and section 2, I present a simple overview of the bosonic realization of the SU(1,1) Lie algebra, single-mode SU(1,1) coherent states and their main non-classical properties.

第一部分和第二部分，对SU(1，1)李代数的玻色子算符实现形式，单模SU(1，1)相干态及其主要的非经典特性进行了简单的回顾。

It also limits the increasing of coherent integration time.

飞机的高速运动所产生距离-多普勒耦合效应使信号波形参数难以选择。

Detailed description has been given individually to the abnormal colours, lineament and circular structure and image features on the multi-geographycal information composite image. We have studied the ore control effect of circular and lineament structure to the multimetal ore, and come to the point that the Xianghualing region is a complex ore control area by circular and lineament structure.Therefore, we build a remote sensing imag model for ore field in the region. Within the circular structure, the northwest lineament crosses the northweast lineament and forms frames that control the metal ore distribution. According to the features of the found deposits and their coherent image, we conclude that there are two symbols for ore looking.

对多源地学信息复合处理图像新发现的色异常、线性和环形构造的分布、影像特征做了较详细的叙述；并探讨了该区的环形和线性构造对多金属矿的控矿作用，认为香花岭地区是环形和线形构造的复合控矿，在此基础上建立了香花岭矿田遥感影像模式：在环形构造内，发育北西向和北东向线性构造组合，交叉成"井"字型格式，控制金属矿的分布。

A simultaneous dual-wavelength continuous wave, quasi-cw or linearly polarized wave diode-end-pumped Nd:YAG laser operating at 1319nm and 1338nm is demonstrated. To the best of our knowledge, our experimental results achieve the highest level in the domestic domain. The simultaneous dual-wavelength laser provides an experimental basis for generating highly coherent THz wave radiation of 3.23THz by nonlinear optical difference frequency method.2. A diode-end-pumped Nd:YAG crystal, type-I critical phase matching LBO crystal intra-cavity frequency doubled, simultaneous multi-wavelength red laser at 659.5nm, 664nm and 669nm is firstly realized.

本论文主要围绕用于差频产生THz辐射源的多波长激光器及THz光子晶体的带隙特性分析而展开，论文的主要内容包括：一、从LD端面泵浦固体激光器的激光阈值公式出发，理论计算了腔镜对于两个波长的透过率关系，实现了LD端面泵浦Nd：YAG 1319nm/1338nm双波长激光连续、准连续及线偏振稳定输出。

Firstly, the Signal Noise Ratio characteristic of matched filter despread symbol and the distribution of coherent phase estimation error are derived. Secondly, the exact integration formula of BER for fading channel is presented, moreover, by using the Maclaurin series expansion of MPSK conditional Symbol Error Rate, the simplified BER approximations for BPSK and QPSK are derived over AWGN, Nakagami-m fading and Rayleigh fading channel.

首先推导了匹配滤波解扩符号的信噪比特性和相干相位估计误差的分布；然后给出了衰落信道中误比特率的精确积分式，并利用MPSK条件误符号率的麦克劳林级数形式，推导了AWGN，Nakagami-m衰落和瑞利衰落信道中BPSK，QPSK误比特率的简化逼近式。

There was once a coherent economic philosophy in the Macmillan era: a little of what you fancy does you good.

麦克米伦时代曾有一条清晰易懂的经济原理是：来点享乐对你有益。

With the coherent-state representation, the behavior of a massless, scalar field ф in the two-dimension Schwarzschild spacetime was discussed.

在二维弯曲时空引入相干态，并利用此相干态表示，研究了二维Schwarzschild时空中的无质量标量场的性质和渐近行为。

By employing the harmonic expansion and matrix inversion, we calculate the polarization of the medium and analyze the interference effect of the coherent field is investigated.

本文采用密度矩阵元的谐振展开方法，理论上研究了处于环型腔内的二能级原子系统的光学双稳和多稳现象的相干控制。

Matrix element of coordinate operator ~l of harmonic oscillator is discussed by using coherent state and normal product.

利用相干态和正规乘积对谐振子任意次幂坐标算符^Xl矩阵元进行了讨论，导出了计算^Xl矩阵元的一般公式，为处理谐振子的微扰问题提供了一种新的方法。

In order to be able to transmit a variable volume of data, particularly in a single coherent data block, between message transmission planes of telecommunications interfaces of a hybrid telecommunications system with minimal effort within the message transmission planes, if the variable data volume exceeds the maximum data volume which can be transmitted between the same message transmission planes of the telecommunications interfaces, then a data element specific to the transmission layer is used as a function of the varying data volume at least twice in succession for the transmission of the data volume in the data block.

要約 为在混合通信系统中能各自以最小的传输工作量在各通信传输层面中传输混合通信系统各通信接口的通信传输层面之间的一个变化的数据量，尤其当此变化的数据量超过在各通信接口的相同通信传输层面之间最大可传输的数据量时仍能在一个单一的互相关联的数据块中传输此变化的数据量，取决于此变化的数据量至少两次依次地对在数据块中的数据量的传输采用一种传输层面专门的信息元素。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。