查询词典 disturbance

It solves the imaging problem in great contrast. In chapter 2, the author deeply studies and analyzes the arithmetic of the method of Born approximation inversion and points out the limitations and disadvantage of the method. The good inverse results can be obtained in little disturbance by Born approximation.

本文提出的反演理论，考虑到散射序列中高阶项对成像结果的影响，在反演时利用逆散射序列中的高阶项以弥补散射场数据的丢失，使得在大扰动量的情况下同样能够实现界面位置和形态的精确成像，解决了大对比度情况下的成像问题。

Because of taking only advantage of the first item in scattering series, method of Born approximation inversion is only suitable to little disturbance imaging. And it will produce great error in condition of great perturbation.

考虑到上述问题，本文在Bleistein和Cohen等人对Born近似的深入研究基础上，运用地震逆散射理论进行深度成像，反演地层奇性界面的位置。

Technical parameters and characters of sampling system determine that seismic wave amplitude recorded by seismograph is approximate relative amplitude. Using these data necessarily leads to serious distortion of inverse parameters. So using Born approximation can only obtain the location of interface even if the earth medium is little disturbance.

采集系统特性和技术指标决定了所记录的地震波振幅值为近似的相对振幅，用这样的相对振幅作为地震波参数反演的振幅真值依据，必然导致反演参数值的严重失真。

The process of development and evolution of the disturbance wave and its harmonics in the boundary layer are investigated.

探讨了边界层的扰动波及其谐波的发展和演化过程，深入研究了非平行流边界层不同扰动的线性和非线性稳定性问题。

The class of nonlinear systems considered is referred to as a semi-strict feedback system and includes parametric uncertainties, input gain uncertainties and the unknown but bounded nonlinear function and disturbance.

论文所研究的非线性系统是一类广泛的半严格反馈系统，系统的不确定性包括有界的参数不确定性，有界的输入增益的不确定性以及未知但有界的非线性方程和外部干扰。

Where the uncertain matrix is norm bounded and time-varying , while the external disturbance is a stochastic process.

假设不确定参数矩阵是时变，范数有界的，外部干扰是一个随机过程。

Branching process model uses a bulk statistical approach to quantify system's stress level by using of historical disturbance data.

第二部分进行分支过程模型用于实际电力系统风险分析的可行性研究。

Its brattice has a high rigidity and ability of anti-disturbance.

1风幕刚度高，抗干扰能力强。

In the author's opinion, to enhance the anti-disturbance ability of brattice and the remote controlled suction ability must mainly rely on the study of basic theory and their mechanis.

作者认为，这个问题的关键还应从基本理论和机理上入手，解决提高风幕自身的抗干扰能力和远距离控制抽吸能力的问题。

Secondly, this paper explains the design of the hardware and software in this system, including the choice of three-phase fully-controlled bridge rectifier circuit, design of protecting circuit, burst module and detecting module, and thinking and method of programming. This paper provides the measures to handle with all kinds of disturbance factors.

其次，本论文对于系统的硬件及软件设计进行了详细的解释，包括三相桥式全控电路的选择、保护电路的设计、触发模块的设计、检测模块的设计以及编程的思想方法等，并且提出了对于实验过程中出现的各种干扰情况所给予的相应的抑制措施。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失