查询词典 approximate method

A computational formula of approximate value of minimum point and minimum value for some particular functions was infered by interpolation method of equidistant points.

利用等距节点的插值的方法，推导出某些特殊函数的最小点及最小值的近似值的计算公式。

An approximate formula for calculating the ultimate load on a foundation was derived by using the generalized limit equilibrium method.

应用广义极限平衡法获得了地基极限荷载的近似计算公式。

First, in the composite hypothesis testing, circular dispersion error which is more practicable than horizontal and vertical error is used to discuss some problems of the dispersion of impact points; and the critical area of decision in the dispersion problem is analyzed; the specific expression of Bayesian risk is worked out, which ameliorates the method that only can get the approximate solution by calculating numerical integration.

由此，本文主要应用Bayes方法对以下几方面进行了探讨：首先，在复杂假设下，本文利用圆散布误差这一精度指标对落点散布鉴定问题进行研究，它比以往所用的纵、横向偏差精度指标更具现实意义；分析了此鉴定问题的决策临界区域；给出其Bayes风险的具体表达式，对用数值积分进行近似求解的方法进行了改进；在此基础上，通过极小化试验的风险确定最优试验数n，并讨论了决策中犯两类错误的概率，给出了验前信息的表示。

First, the S-CDMA-HFC system with integrated traffic is introduced and the method of traffic integration is given. Second, the upstream channel capacity of the S-CDMA-HFC system with integrated traffic that has the same rate is analyzed. The chronoff limit and Gaussian approximate equation of the upstream channel cutoff probability are derived. Third, the impact of the selection of the line transmission rate on the upstream channel capacity of the S-CDMA-HFC system with integrated traffic is discussed in detail. The cutoff probability and throughout equations of the upstream channel with different integrated traffic are derived. Fourth, the impact of the power control error on the capacity is discussed. Results show that the power control error will degrade the upstream channel capacity and have different influence on the different traffic. Finally, the capacity requirement of the initialization process is raised. Analytical results show that the initialization process will impact on the capacity slightly.

首先，简单介绍了综合业务S-CDMA-HFC系统，给出了业务综合的方法；然后，分析了具有相同码率的综合业务条件下的S-CDMA-HFC系统上行信道容量，导出上行信道中断概率的切尔诺夫上限和高斯近似公式；然后，详细讨论了基本传输速率的选择对综合业务S-CDMA-HFC系统上行信道容量的影响，导出了不同业务综合条件下上行信道的中断概率和吞吐量公式；然后，讨论了功率控制误差对综合业务S-CDMA-HFC系统上行信道容量的影响，结果表明功率控制误差会使上行信道容量下降，且对不同业务的影响程度是不同的；最后给出了初始接入的容量要求，分析结果表明初始接入将对综合业务S-CDMA-HFC系统上行容量带来影响，但不明显。

By virtue of method of continuum approximate limit, we obtained the solitons of the vibration of lattice in one-dimensional harmonic and inharmonic chains of polarized molecule, under the conditions considering and inconsidering the interaction of exciton with phonon, through solving moving equations of exciton and phonon.

运用连续极限近似方法，通过求解声子和激子的运动方程，得到了在不考虑激子与声子的相互作用和考虑激子与声子相互作用两种情况下的极性分子简谐链和非简谐链中晶格振动的孤子解，并得出了激子与声子的相互作用的非线性效应类似于晶格三次势的非线性效应，以及相同的非线性效应不论是同时作用还是单独作用都具有相同的非线性效应的结论。

ABSTRACT This paper presents results of online identification of hydrogenerators, a long-term running robust self-tuning regulator of generator excitation, governor power system stabilizer decoupled in multimachine systems, and an adaptive GPSS designed in frequency domain. 1. It presents a step-by-step zero cancellation method , accuracy weighted recursive least squares and approximate RLS algorithms, inferior limit of sampling time.

针对发电机励磁和调速系统建模与控制，针对多机电力系统的稳定性，本文综述了自适应控制理论及其在电力系统中应用的现状和发展方向后，在辨识、自适应控制结构和鲁棒性提高的措施上进行了研究，取得了水轮机调速系统现场辨识的成功，获得了长期稳定运行的鲁棒励磁自校正控制器、多机解耦的调速侧电力系统稳定器和频域设计的自适应GPSS。

The experimental results show that the approximate frequent itemsets method isfeasible and the compression quality is good.

实验结果显示这种近似的频繁项集压缩方法是可行的并且压缩质量好。

The simulated results show that the proposed method and the approximate algorithm can be readily put into practice.

结果表明，上述方法可有效地改进电网频率和谐波的测量准确度，具有工程应用价值。

In this paper, the aim is to create an approximate solving method of nonlinear equation for the ENSO models.

本文的目的是创建一个求解ENSO模型非线性方程的近似方法。

Therefore, it can only approximate simulation method!

所以只能用近似模拟的方法！

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。