有效公式

The improvement can maintain the speed of the original convergence and is still effective when there are multiple root s.

对牛顿求根公式作了改进，使其对重根情况仍有效，并保持原有的收敛性

According to design parameter representation, such as formulae, form, and rules, different methods have been applied.

针对设计数据表示形式如公式、表格、规则等采用了不同的处理方法，有效地利用了设计者的经验。

The first-order perturbation theory is used to the sensitivity profile of the K_ in the fast facility.

采用一级微扰理论研究了宏观实验装置的有效增殖因子K_随截面变化的灵敏度，推导了在球坐标下的灵敏度计算公式。

Based on the fact that the normal basis representation of the field elements can convert to the polynomial basis representation, and vice versa, the multiplying formula is analyzed carefully, and some efficient properties for designing serial multiplier are obtained.

基于域元素的正规基表示和多项式基表示可以相互转换，通过分析多项式基下的乘法运算公式，得到利于串行乘法器设计的有效性质。

Therefore,a series studies of ice-pier vibration are performed from different aspects in this paper.The main work of this his thesis is summarized as follows:(1) Ice response spectra is proposed based on the idea of a seismic response spectra analysis of str .. uctures.Firstly,ice response spectra on the basis of power spectra density function is established;Secondly,based on the assumption of quadratic parabolic interpolation method,the nonlinear interpolation analysis method of ice response spectra is studied from both theoretical and practical points of view,and the successive computation formulas including ice displacement,velocity and acceleration response spectrum are deduced by Duhamel integral.Furthermore,to analyze the effectivity and applicability of the method, the real temporal curves of ice pressure are used to be studied.The results show that the presented method is more convenient and accurate to study the structural response induced by ice force,also it can be effectively applied in the design of ice resistance.

鉴于此，本文针对冰激桥墩结构振动问题从不同方面展开了一系列与之相关的研究，主要研究内容如下：(1)根据结构抗震反应分析思想提出了冰振反应谱，首先建立了基于功率谱密度函数的冰振反应谱；其次借鉴地震反应谱内插法的思想从理论和实际观点出发，假定在等距离微小时间间隔内冰荷载按二次抛物线规律变化，由Duhamel积分推导出冰振位移、速度以及加速度反应谱的一系列连锁公式，建立了基于非线性内插法的冰振反应谱，并利用实际冰压力时程曲线进行了冰振反应谱数值分析，为以后冰激结构振动的研究提供一种方便、简捷、精确的分析方法，也能够将其有效地应用到结构的抗冰计算中。

A special case,that the effective Fresnel number turns out to be a pure imaginary number,was discussed,and it is indicated that the simple formula evaluating the relative focal shift is still valid in this case.

还讨论了一种特殊等效菲涅耳数为纯虚数情况。结果证明，在这种情况下，该相对焦移简单公式仍然有效。

These days, alcoholics are usually given an intensely hot formula, such as Jiu Zhen Wan , to effect purgation.

这些天来，酗酒者，通常给予酷热的公式，如久甄湾丸，更有效净化。

For the principal component, namely the voltage stability analysis function, three kinds of nodal injection power modes are defined, i.e., the random varying direction of load, the response setting direction of generator and the ratio of active power component to reactive power component in load power, and a continuous power flow model that is easy to utilize and comprehend by dispatching center is built, based on this model three kinds of formulae to calculate the sensitivities of loading margin with respect to three kinds of nodal injection power modes are derived respectively, and on this basis the influence of nodal injection power mode on loading margin can be analyzed in order that the voltage collapse can be avoided by fast implementing early warning of voltage stability and adopting effective corrective control.

文章针对N-EMS的主要组成部分--电压稳定分析功能，定义了3类节点注入功率模式：负荷的随机变化方向、发电机的响应设定方向、负荷的有功和无功比例，建立了易于被调度中心运用和理解的连续潮流模型，在此模型基础上分别推导得到负荷裕度对3类模式的灵敏度公式，据此分析节点注入功率模式对负荷裕度的影响，以便能够快速进行电压稳定预警和采取有效的校正控制来避免电压崩溃。

Recurrence formula is obtained for the dynamic analysis of plastoelastic structure .

推导了弹塑性结构动力分析的递推公式，提出了一种简单有效的弹塑性结构主动控制算法。

On the basis of this , the paper makes a great deal of calculation and analysis in this part , different parameters effect and stress gradient are included . local buckling coefficient and the efficient width calculated formula are provided and look forward to take a reference to the redaction of the specification

本文对此内容进行了较为深入的研究，考虑了多个参数的影响，对各种应力比作用下的楔形腹板的屈曲及屈曲后强度进行了计算分析，得出了考虑翼缘相关作用的楔形腹板屈曲系数及有效宽度系数的计算公式，以期为规范的修订提供参考。

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。