查询词典 numerical technique

This paper took the paddy soil after saving-water irrigation as the object,which is from Taian town of Yangzhou city, selected microtomy to get undisturbed soil samples respectly between two periods(before irrigation and after harvest), built up the analytical technique of numerical picture system.It also set up the analysis index of macropore structure,such as the number of macropores N, the macroporosityφ,the area A, the perimeter P and so on. Meanwhile make analysis contrast about horizonal distribution among 4cm, 6cm and 8cm scanning areas, vertical differences per 2cm unit and contrast in time between different periods.

本文选取扬州市泰安镇节水灌溉后稻田土壤为研究对象，采用切片法取开灌前和收割后的原状土样，运用数字图像制备技术，获取大孔隙数目N、大孔隙度Φ、面积A、周长P等分析指标，对4cm、6cm和8cm扫描直径内大孔隙作水平向差异性分析，对2cm单位深度上作垂向差异性分析以及对两个不同时期作时间差异性分析。

A great deal of numerical models and real seismic data indicate that the technique has obvious effects.

经大量的模型及实际资料处理表明该方法具有明显的效果。

However, for some test function, the numerical results of this nonmonotonic technique relies on the choice of M.

但是，这种非单调技术对于某些检验函数其数值结果依赖于M的选取。

Mainly introducing the frame and advanced function of numerical control ECM machine tool with PLC and touch screen,the software ,the hardware and key technique in control system.

主要介绍采用可编程序控制器和触摸屏技术的数控电解加工机床的结构特点、控制系统的软、硬件结构及其关键技术，和机床的主要先进功能。

Monte Carlo simulation technique in conjunction with numerical integration was used to calculate the probabilistic distribution function of bonding time.

在原有确定性模型的基础上考虑了粗糙度孔隙的概率分布，建立了扩散连接孔隙闭合的概率模型。

The key idea is that the proposed numerical scheme involves the operator splitting technique, balance tensor diffusivity, Runge-Kutta time-stepping method, and a conjugate gradient iterative solver.

此法最主要的概念是使用一种分离的离散式、数值平衡扩散式、时间前进法及共轭梯度法来求解。

The numerical approach consists of an operator split technique,which transforms the elastic-plastic problem into a purely elastic problem and a residual problem with prescribed eigenstrains.

针对接触表面变曲率的特点，引入局部坐标系，构造出局部坐标下残余应力应变场的分布状态，建立了变曲率连续啮合过程中安定状态残余应力的计算方法。

But numerical value simulation technique in the practice engineering is just absent which is very necessary.

因此，关于轻集料混凝土在桥梁中的数值模拟技术的研究已成为必需解决的问题。

In chapter 5, we investigate the iterative methods for solving the linear systems by the homotopy perturbation technique, and the numerical rank of a matrix in the matrix computations are considered, especially the ill-conditioned matrices.

本文第五章中我们首先利用同伦摄动技巧考察了线性方程组的迭代解法。其次，从数值计算的角度考察了矩阵的数值秩问题，尤其是病态矩阵。

Nonsingular H-matrix; generalized H-matrix; eigenvalue; numerical radius; matrix splitting; saddle point problem; Krylov subspace method; preconditioning technique

基础科学，数学，代数、数论、组合理论非奇H-矩阵；广义H-矩阵；特征值；数值半径；矩阵分裂；鞍点问题； Krylov子空间法；预处理技术

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。