查询词典 numerically

In order to simulate the mechanical behavior of nonhomogeneous materials numerically, the traditional finite element method is improved in this dissertation and the finite element method with nonhomogeneous elements is developed.

为了适用于非均匀材料的数值计算，本文将传统的有限元方法进行了改进，推导了非均匀单元有限元方法。

The joint effect of active and reactive power on the voltage stability of a typical power system was considered by analysing the two parameter bifurcation problem related to nonlinear oscillation phenomena. Numerically, as the active power P1 increases, the Hopf points get closer and eventually coincide at P1=1.455 43 the cyclic fold curve gets closer and closer to the Hopf curve and finally intersects the Hopf curve at a singular point the period-doubling points also get closer and finally coincide at P1≈0.65. The stability behaviour is pre-determined using the normal form approach near the limit point of the Hopf curve. Hence, in the power system attention should be paid to both the consumption of active power and the decrease in the reactive power to prevent nonlinear oscillations. A controller can be designed to absorb some active power and to avoid the nonlinear oscillations that damage the system components.

针对一个典型的单机无穷大电力系统，通过分析系统的双参数分岔的非线性振荡现象，综合考虑有功和无功功率对电压稳定性的影响数值分析表明，随着有功功率的增加，电力系统的Hopf点越来越靠近，最终合为一点在P1=1.455 43处同时圈折cyclic fold 曲线也越来越靠近Hopf曲线，并在Hopf曲线的稳定与不稳定临界点处与Hopf曲线相交倍周期分岔点也随着越来越靠近，最终在P1≈0.65 合为一点应用正规形理论方法，初步确定了Hopf曲线极限点附近的稳定性态因而，电力系统应注意让负荷利用有功功率，减少无功功率的产生以防止非线性振荡另外，可以设计一个稍微吸收网络的有功功率的控制器，以避免因周期振荡而造成电力系统仪器的损坏或电压崩溃

At one extreme is the arrangement made in Newfoundland from 1836 to accommodate all numerically represented denominations separately within a loose system (not until 1920 was a unified system of education developed which still works through five denominational subsystems); at the other extreme are the arrangements made in British Columbia which became decisive when it entered the Canadian Confederation to establish and maintain a free unified centralized nonsectarian system.

一个极端是从1836年开始在纽芬兰作出安排以适应一个松散的系统（直到1920年所有面额的数值分别代表着一个统一的教育发展系统，这个系统仍然是通过五个宗派子工作的系统），在另一个极端是在不列颠哥伦比亚省的安排，当这个安排决定进入加拿大联邦时，建立和维持了一个自由，统一的，集中的宗派系统。

Finally, natural frequency is obtained by the existence condition of nontrivial solution of the numerically discrete algebraic equations derived from the integral equations.

最后由积分方程的离散化方程组有非平凡解的条件，求得固有频率。

Throuth computer simulation, we have numerically investigated the effect of pulse walkoff on optical pulse compression based on cross phase modulation in the normal dispersion regime of single mode fibers.

通过数值模拟，分析了脉冲离散效应对单模光纤正群速色散区基于暗孤子交叉相位调制的脉冲压缩的影响，并提出了减轻这种影响的办法。

The quadrupolar ring's temperature field is studied numerically by finite difference method, its null drift is analyzed at given temperature circumitance.

通过有限差分法，对光纤环的Shupe效应作了研究，对四极子光纤环在非稳态传热的过程中的温度场进行数值求解，分析了光纤环在试验提供的温度环境下的温度零漂。

The company mainly have trade on Metal-cutting machine tool, it mainly has horizontal-type six axis automatic lathes、horizontal-type six axis numerical control lathe、special special-purpose numerically-controlled machine tool serial products, it has forms the volume production, enters the workshop、national defense war industry、textile machinery、professions electrically operated mechanical pump valve processing and so on.

公司主导产品为金属切削机床，主要有卧式六轴自动车床，卧式六轴数控车床，特种专用数控机床等系列产品，已形成批量生产，进入汽车，国防军工，纺织机械，电动机械，泵阀加工等行业，产品内销二十一个省市自治区，并出口新加坡，马来西亚等国家和地区。

The choice of the best wavelet bases is one of the subjects attracting more attentions. This paper presents a new choosing method based on numerical analysis. Here the coding performance of wavelet bases is evaluated overall numerically by using several standards, which had been confirmed to be relating to image coding The best chosen wavelet bases fitting static images and video coding are respectively Daubechies's biorthogonal wavelet 9-7 and 5-3, which have been proved by coding experiments.

最佳小波基的选择是倍受关注的问题之一，本文提出一种新的基于数值分析的挑选方法，通过用几个已被证实是与图像编码密切相关的小波基评价标准对小波基的编码性能进行全面的数值评价，并经实际编码检验，选出了适宜静态与活动图像编码的最佳基分别为Daubechies双正交小波9-7与5-3。

To calculate the numerical value of;express numerically.

计算…的值；以数目表示不适合

As the development of information technology, human cardiovascular system model can be simulated numerically in computers.

随着信息技术的发展，人体心血管系统整体模型可在计算机上实现数字仿真。

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。