查询词典 numerical technique

A numerical simulation technique based on the stable alternating direction implicit method and the upper bound element technique is presented and applied to simulations of extrusion directly following liquid infiltration which involves infiltration,solidification, and large plastic deformation in one process.

采用稳定的交替方向隐式有限差分方法、上限元法等数值计算方法模拟了融浸渗、凝固和大塑性变形为一体的液态浸渗后直接挤压的工艺过程。

CWS technique is developed well in China. But, compare with the developed countries, in design and manufacture of burner, manufacture of big capacity high pressure CWS pump, structure configuration of the burner and the gasifier, the development of numerical simulation software, the manufacture of furnace firebrick, the design of PDP software and other sides, our technique is not perfect.

然而，与国际社会相比，我国的水煤浆气化技术还存在许多问题，在喷嘴的设计与制造、大容量高压煤浆泵的制造、喷嘴与气化炉结构的配置、数值模拟计算软件的开发、高温炉衬耐火砖的制造、PDP软件包的设计等方面还不尽如人意。

The reconstruction problem is ill-posed, so two optimal criterions, the least module and the smoothness criterion base on Tikhonov regularization technique, are introduced into reconstruction algorithm. Many regularization parameters choice strategies are investigated, and the TPA(Two—Parameter Algorithm) strategy which is based on the Morozov discrepancy principles, is implemented in two regularization reconstruction algorithms.Numerical experiment results show that the nonnegative and smoothness constraint condition can overcome the difficulty of iteration semiconvergent, preconditioned technique can improve convergence rate and reconstruction accuracy, smoothness regularization criterion can meliorate ill-posed problem of reconstruction and enhance iteration stability, and the TPA is an effective strategy of regularization parameters choice.

数值试验表明：在共轭梯度法中引入非负约束和光滑约束改善了迭代的"半收敛"性，非负约束保证了解的非负性，光滑约束抑制了重建解的振荡现象，约束算法的重建精度与无约束算法相比大幅度提高；在约束共轭梯度重建算法中引入预优技术，可以加快算法的收敛速度，提高迭代的稳定性和重建精度；引入光滑准则的正则化技术可以有效改善图像重建问题的不适定性，加快迭代的收敛速度，提高迭代的稳定性和图像重建质量，计算正则参数的TPA算法在闪光照相图像重建中是有效的。

With the advantage of being highly objective and efficient,the computer-aided analysis system for synaptic numerical density based on the Disector technique,Disector Countor 1.0,would be the developmental direction for synaptic numerical density analysis.

我们利用本文探讨应用Disector技术测量突触数密度的可行性和具体步骤，以及基于该技术的突触数密度计算机辅助分析的原理和过程。

With the advantage of being highly objective and efficient,the computer-aided analysis system for synaptic numerical density based on the Disector technique,Disector Countor 1.0,would be the developmental direction for synaptic numerical density analysis.

我们开发的基于Disector技术的突触的数密度计算机辅助分析系统——Disector Countor 1.0，具备客观、高效等优点，是突触数目定量分析的发展方向。

It was proved through experiment that optimum passive numerical shimming can achieve a high level in superconducting NMR imaging magnets and it can be realized very easily and very economically. Field regression is not absolutely necessary in the technique of optimum passive numerical shimming, but it is useful to know the structure of the field error Bz'.

磁场回归在超导核磁共振成像主磁体的无源数值匀场技术中虽然并不是绝对必需的，但在对主磁体进行无源数值匀场时，如能知道成像空间内不均匀磁场的磁场偏差B〓的结构，也是非常有用的。

In chapter 1, the history of numerical simulation of extinguish fire is introduced. The technique and theory of fire suppression by water mist are presented, and the sort of numerical simulation of extinguish fire is discussed.

第一章回顾了细水雾灭火过程数值模拟的发展历程，介绍了细水雾灭火技术和灭火机理，同时阐述了火灾数值模拟的分类，以及国内外在灭火数值模拟方面的研发现状。

In the background of numerical simulation for the transonic flow about advanced transport aircraft with wing-mounted nacelles, great efforts have been made in this thesis for the improvement of the grid generation technique and the numerical methods for solving the Euler equations.

本文以民用飞机复杂外形跨音速绕流数值模拟及气动力分析为应用背景，在复杂空气动力外形网格生成技术，Euler方程数值求解方法的改进。。。

In the paper, based on reading and studying a great number of references about fluid dynamic technique and numerical computing methods of flow field, 3-D Numerical simulations and visual analysis of the flow field in hydraulic poppet valve with inside flow work condition were obtained by CFD software Fluent.

本文在参阅大量国内外有关计算流体力学和流场数值计算方法相关资料的基础上，用CFD软件Fluent对内流工况液压锥阀内部流场进行了三维数值模拟及可视化分析。

In recent years, as numerical control technique has been applied, the newly electrical screw press with numerical control has emerged.

其中电动螺旋压力机采用电动机直接驱动的传动方式，代替以往广泛采用的液压伺服和机械传动方式，具有传动链短、易于维护等优点。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。