Integrated analysis of 7 times heavy rain in Yunnan from July 19 to August 2 based on actual observation weather datum and satellite cloud atlas and Doppler radar image. The results show that: high-low southwest jet stream is important effect system. The maintenance of southwest jet stream provides water vapor, momentum, fast transfer of unstable energy for the lasting heavy rain. The further configuration of plateau shear line and southwest jet stream is necessarily condition about 7 times heavy rain. The lasting heavy rain appeared on big value region of 500hPa vapour flux and vapour flux divergence. The shear cloud band and subtropical high cloud band crossed and confluenced in Yunnan on the satellite cloud atlas. The maintenance and intensification of shear cloud hand and periphery cloud band of subtropical high correspond quite well to heavy rain falling region and cloud band distribution.
应用实测气象资料，结合卫星云图与多普勒雷达图像分析，对2007年7月19日到8月2日云南少有的7次强降水过程进行综合分析，结果表明：高低空的西南急流是重要的影响系统，西南急流的维持为持续性强降水过程提供了水汽、动量和不稳定能量的快速传递，高原切变线与西南急流的有利配置，是7次持续性强降水过程必不可少的条件；持续性强降水出现在500hPa水汽通量大值区和水汽通量散度辐合区；卫星云图上切变云带和副高外围云带在云南汇合，切变云带和副高外围云带维持、加强的过程与强降水落区的时空分布对应较好。
The new electromagnetic properties of negative index material such as converse Cerenkov radiation and converse Doppler effect, negative refraction index and perfect lens are analyzed and explained by using basic electromagnetic theory.
从基本的电磁场理论出发，分析和解释负折射物质的电磁特性，以及负折射物质中的逆Cerenlov现象、逆Doppler现象、负折射率和完美透镜的工作原理，帮助人们更加清楚地认识负折射物质的本质特性，更好地开发和应用好负折射物质。
I will now demonstrate the doppler effect.
我现在来示范多普勒效应。
Sheldon: Yes, well, I'm the Doppler effect.
是的，那么，我是多普勒效应。
The purpose of all these analysis is to overcome the Doppler effect.
在此基础上克服高速运动目标多普勒效应的影响。
I'm going as the Doppler effect.
我准备扮演多普勒效应。
Sheldon: I'm the Doppler effect.
我是多普勒效应。
This article is concerned with the application of Doppler effect to modern technology, and its theoretical analysis and researon.
介绍了现代技术中多普勒效应的几个应用实例，并从理论上进行了分析研究。
This paper discusses a new method for measuring displacement using grating Doppler effect.
本文研究了一种利用光栅衍射的多普勒效应进行位移测量的新方法。
Secondly, the effect of Doppler broadening on inversionless optical gain is explored.
无粒子数反转激光研究的主要目的就是要得到用其它方法难于实现的短波长激光。
At first the basic conception of PRC-CW is given, then a Doppler pretreatment method is given. Through utilizing the shift multiplication characteristics of m series, this kind of radar system eliminates the bad effect of Doppler frequency on the performance of correlation at the little price of signal-to-noise ratio reduction efficiently. In theory, the Doppler tolerance of the radar system can reach the half of the code rate with proposed echo pretreatment method in this paper.
首先介绍了m序列编码基本理论，然后给出了m序列调相连续波雷达多普勒预处理的方法，该方法充分利用m序列移位相乘后仍为m序列的优良特性进行回波预处理来消除多普勒频移对相关性能的影响，使得即使在出现大多普勒频率情况下雷达相关器输出的主旁瓣比仍可以达到理论值，从理论上说，应用于该雷达系统的信号处理方法可以使得雷达系统的多普勒容限达到伪码子码重复频率的一半，从而使伪码调相雷达可以有效地应用于高速超高速目标的搜索和跟踪。
Objective:To study the clinical value of color Doppler ultrasonography and therapeutic effect in primary hepatic carcinoma by cryosurgical system before and after interventional therapy.
目的：探讨彩色多普勒超声在氩氦刀介入治疗肝癌前后的临床应用价值，评价氩氦刀的治疗效果。
Objective To study the clinical value of color Doppler ultrasonography and therapeutic effect in primary hepatic carcinoma by cryosurgical system after interventional therapy.
目的：探讨超声引导经皮氩氦靶向治疗肝肿瘤的疗效和临床应用价值。
ObjectiveTo study the effect of fentanyl anesthesia on cerebral blood flow kinetics by transcranial Doppler sonography in adult patients undergoing cardiac operation.
目的应用经颅多谱勒研究芬太尼复合麻醉对心脏手术病人脑血流动力学的影响。
Application of novel approach of detecting signal in laser Doppler effect.
一种新的信号分析方法在激光多普勒信号检测中的应用。
Sometimes the knowledge of Doppler effect is uncertain, so that Doppler shift can not be compensated effectively. Under this circumstance, some theoretical problems and techniques must be investigated and solved for rapid receiving DS/SS signals.
例如，对于采用直序扩频体制的低轨卫星移动通信系统，因为地面发射机与星载接收机之间产生相对运动，所以接收信号中有多普勒效应存在。
The changes of the blood flow of ocular vascular detected by Color Doppler ultrasound showed that the hyperdynamics existed in end-brush perivascular, and it played an important role in the diagnosis and the evaluation of therapeutic effect in patients with liver cirrhosis.
彩色多普勒超声检测眼动脉、视网膜中央动脉血流动力学变化，表明肝硬化患者外周末梢动脉处于高动力循环状态，其对肝硬化的诊断及预后评价有重要的临床意义。
In Chapter 3, we studied the effect of the driving field phase-fluctuation the open four-level non-inversion lasing system.
第四章在不考虑Doppler效应和考虑Doppler效应两种情况下，对开放的四能级无中文摘要反转激光系统受传播效应的影响的研究。
This is the so-called Doppler Effect; the dependence of the pitch on the velocity of the source.
这个就叫做多普勒效应；音调依赖于声源的速度。
In this paper, the effect of time-delay and Doppler frequency in acquisition of PN code is analyzed, using maximal-length shift register sequence as research object. It is shown that delay-Doppler cross effect is neglectable in most cases.
以m序列为研究对象，首先针对一种典型的相关过程分析了其时延、多普勒频移对相关的联合影响，结论表明两者耦合影响非常小，几乎可忽略不计。