查询词典 numerical analysis

Third, the discussion of the corresponding relationship of the real angles to the apparent real angles is performed, the asymptotic bias and MSE of real angles are given. Fourth, based on above conclusions, the analysis of two typical cases is made by numerical analysis and computer simulation: Case A when the impinging signals are divided into desired signals and interfering signals: it is shown that similar to Cyclic estimation of DOA, the smaller the separation between interfering direction and signal direction, in general, the smaller the estimation variance.

首先，研究了无穷快拍时信号数目有误的最大似然估计，引入了视在真实角度的概念；其次，导出了视在真实角度最大似然估计大样本时的分布以及渐近均方误差的解析表达式，而且还证明了：Stoica性能分析结果是现在的分析结果在信号数目准确时的特例；第三，讨论了真实角度与视在真实角度的关系，给出了真实角度的渐近偏和渐近均方误差；第四，依据前面的结果，利用数值分析和模拟实验的方法对两种典型情况做了分析： 1 在入射信号被分为干扰信号和所需信号情况下：结果表明：与CyclicDOA估计一样，干扰方向与所需信号方向靠的越近，所需信号估计的方差越小，越远离，方差越大。

On the base of the analysis of the static fbd under diametric compression , numerical analysis and compare are performed on the dynamic stress field of the brazilian disk and fbd used in the testing tensile strength under shpb

在对静态平台压缩巴西圆盘进行的数值分析的基础上，本文分析了shpb动态劈裂拉伸实验中巴西圆盘和平台巴西圆盘的动态应力场，并对结果进行了比较。

Based on the principle of equilibrium of nodal forces , and using the sub structure method as a numerical analysis tool, a new type of configuration analysis method for membrane, cable membrane is presented in detail in this paper.

本文针对膜、索膜结构的形态分析问题，以节点力平衡原理为基础，结合子结构的数值计算方法，提出了解决该类问题的一种新方法。

After introducing some basic results from ergodic theory, two probIems related to the dynamical system are studied: first the existence of absolute continuous invariant measures, and then their computation. They correspond to the functional analysis and numerical analysis of the Frobenius-Perron operator associated with the dynamical system.

首先介绍了遍历理论的一些经典结果；然后着重研究了对应于混沌映射的绝对连续不变测度的存在性与计算问题，这归结于相应的Frobenius-Perron算子的泛函分析与数值分析；最后《确定性系统的统计性质》介绍了Shannon熵、Kolmogorov熵、拓扑熵以及Boltzmann熵，并给出了不变测度的一些最新应用。

The error of SIF is discussed too. Then an index to estimate error of SIF is advised. The analysis shows it is a feasible and correct parameter.Size effect, Numerical analysis, Statistical theory, Energy theory, Fractal theory

8在对应力强度因子的计算方法进行评述的基础上，对应力强度因子的计算误差进行了分析，提出了一个使用有限元方法求解应力强度因子的误差指标参数。

Finite element limit analysis method has the advantage of combining numerical analysis method with traditional limit equilibrium methods.

有限元极限分析法兼有数值分析法与经典极限分析法两者的优点，特别适用于岩土工程的分析与设计。

A plan for the solution of a problem; consists of planning and coding, numerical analysis, systems analysis,''.

为解决某一问题而作出的计划，包括规划和编码、数值分析、''。

A plan for the solution of a problem; consists of planning and coding, numerical analysis, systems analysis, specification of printing formats, and any other functions necessary to the integration of a computer in a system.

为解决某一问题而作出的计划，包括规划和编码、数值分析、系统分析、打印格式规定以及把计算机结合进一个系统所必需的其它功能。

First, this text introduce fundamental concepts and conditions of development about Object Oriented Finite Element, and discussed the way which is essentiality and flexibility in the application of electrical Numerical Analysis analysis software, and also systemic studied the designing method of object oriented programming.

接着设计了面向对象有限元软件的体系结构，并深入研究了软件可视化平台。

The comparison between two methods of calculating the saturation parameters-the Air-gap Permeance Analysis method and the Field Numerical Analysis method-is given here.

本文还探讨了用气隙磁导分析法和磁场数值分析法考虑饱和影响的参数计算方法，并通过实际计算比较了两种方法的特点。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。