查询词典 numerical approach

The numerical experiments indicated that the redundant approach with adaptive thresholding for image denoising is much better than wavelet and curvelet also contourelet.Especially,Bandelet denoising can preserve much more details of the images and have better visual quality because of no Psedudo-Gibbs.

实验结果表明：该算法的去噪效果要优于经典小波以及curvelet和contourlet，去噪后图像的边缘没有伪Gibbs效应，具有好的图像的视觉质量。

Identical data inequilibrium stats and similar shock-induced reacting flow fields are gained for tworeaction models when projectile velocity is 3km/s. In this case, the molar fraction ofdissociated methane is so small that the frozen flow or a very simple reaction modelcan well describe the flow field of weakly shocked methane. As projectile velocityincreases, molecular methane is readily dissociated and some stable products are formed. Only do the numerical results of the 40 reactions involving13 species approach to the corresponding experimental results.

计算表明，当飞片速度低(3km／s)时，两种反应模型给出冲击状态参数的结果基本一致，因为这时甲烷气体冲击波后的成分变化很小，说明可以用更简单的化学反应模型描述高温甲烷的化学反应过程；当飞片速度增大时，甲烷分子迅速的离解，反应产物容易形成稳定的化合物，只有13组元40反应模型的计算结果才能与实验结果接近。

The third chapter talked about two different treatments of quantum decoherence in V〓 system. For one the decoherence factor is been expressed in the form of a random external field. And the mean density matrix is calculated to signal the decoherence by showing its nondiagonal elements to approach to zero. In another numerical work done by us, random interaction between system and environment is imposed to mimic the decoherence factor.

第三章讨论了V〓体系中量子相干性研究的两个工作，一个用随机外场来代表消相干因素，采用对系统的密度矩阵进行随机平均的解析方法得到一些结果，一个是我们用数值计算方法的处理，其中消相干因素考虑成系统和环境的相互作用。

A numerical method for the T-matrix approach of light scattering by randomly oriented arid axially symmetric nonspherical particles performed in PC machine is presented first.

首先介绍了无规取向轴对称非球形粒子光散射的T-矩阵数值方法。

In order to understand the mechanism of pollution process around insulator under the wet condition better,based on the principle of computational fluid dynamics CFD, the numerical model,which was used to analyze three-dimensional two-phase uncompressible turbulent flow field around composite insulator in wet weather and convection-diffusion of dust particles,was established.Then,the dynamic simulation of the general approach,which was used to analyze solid dust particles' wet deposition process around composite insulator with application of CFD software-Fluent,was proposed.

为深入了解绝缘子外部在湿润条件下的积污机理，基于计算流体力学原理CFD建立了求解湿润气象条件下复合绝缘子外部三维两相粘性不可压缩湍流流场的基本控制方程组和尘埃颗粒对流扩散的基本方程，提出应用CFD软件Fluent可对复合绝缘子表面固体尘埃颗粒湿沉降过程进行动态模拟的一般方法。

A new approach to LED color image segmentation based on Gaussian function was proposed. By using color component value and caning on the filter through the Gaussian function template, the two value image of the useful numerical information could be attained directly.

提出了一种基于高斯函数的LED彩色图像分割新方法，利用彩色分量值，通过高斯函数的模板进行滤波，直接分割出有用数字信息的二值图。

Based on the nonlinear, elastic-plastic finite element method theory, the modeling approach of the numerical simulatioin of SPIF was studied firstly in this project.

本课题首先基于非线性、弹塑性有限元理论方法，对金属板材单点渐进成形过程的数值模拟的建模方法进行研究。

Numerical model of border or furrow irrigation flow movement is a necessary tool and approach to design and evaluate surface irrigation systems.

数值模拟畦灌水流运动过程可为地面灌溉系统设计与评价提供必要的工具和手段。

A numerical model for calculating geometric parameters of the insert pocket on a boring cutting tool with indexable inserts is presented using the constraint optimization approach offered by ANSYS.

采用ANSYS的约束优化方法，建立了可转位镗刀刀片槽几何参数优化计算的数值模型，使用该模型可得到在给定切削条件下满足设计要求并使镗刀前角值为最大而主偏角值为最小的镗刀刀片槽加工所需的几何参数；最后给出了优化计算实例。

Online tuning and relatively light calculation burden due to directly coefficient setting by formula extend this scheme to be used for fast-running process and mechanical equipment, numerical simulation over a wide range of system parameter variation shows that the recommended scheme is superior to both traditional PDF designed by Phelans approach and relay feedback auto-tuning PID in terms of performance behavior.

本文通过基于继电反馈的自整定PDF控制和基于Phelan法的PDF控制及基于继电反馈的自整定PID控制的比较研究，表明所提出的控制方法具有良好的控制效果。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。