非线性优化

With all kinds of operation restrictions, it is a typical nonlinear integer combinative optimum problem.

在满足各种运行约束条件下，以网损最小或可靠性最高为目标的配电网重构问题是一个典型的非线性整数组合优化问题。

QoS multicast routing problem is a nonlinear combinatorial optimization problem,which has been proved that the problem is NP-complete problems.

QoS组播路由问题是一个非线性的组合优化问题，已证明了该问题是NP完全问题。

Based on analysis of the force deployment , and the command level rdadons, the paper presents a bilevel programming battle model of tbe optimization problem of force deploirment, studies .

在对军事作战中兵力部署和指挥关系分析的基础上，提出了一种考虑两级指挥关系的兵力部署优化模型，即两层非线性整数规划模型。

We use the method of golden section and Newton iteration to solve the nonlinear constrained minimization problem.

最后用黄金分割和牛顿迭代方法解决非线性约束优化极值问题，得到满足几乎完全重构和小波正则性条件的低通原型滤波器。

A new method for dynamic nonlinear constrained optimization problems is presented.

研究了一类动态非线性约束优化问题的新解法。

The function of each part of genetic algorithm is analyzed in application to nonlinear unconstrained and constrained optimization.

分析了遗传算法各主要组成部分的功能，研究了遗传算法在非线性无约束和等式约束优化问题中的应用。

Experimental results indicate that the IPSO is robust and efficient in solving nonlinear constrained optimization problems.

对比数值实验结果表明，该算法能够有效、稳定地求解非线性约束优化问题。

By using this method, the angular frequency, amplitude, initial phase angle, decay constant of each component in transient voltage and/or current waveforms can be precisely extracted. Also, all other kinds of transient procedure can be analyzed by this method. Thirdly, a new definition of generalized instantaneous reactive power and generalized instantaneous reactive current in dq0 coordinates under any nonsinusoidal and unbalanced three-phase circuit is proposed for the first time. The detection and compensation method for different instantaneous reactive currents are also concerned.

本文首先提出了用于快速高精度频谱分析的一种改进快速傅立叶变换方法，该法具有速度快、精度高、抗混迭、不受采样定理约束、可以分析出谐次大于N／2的频谱系数等特点，可方便地应用于电力系统谐波分析及其它各类频谱分析；然后提出了基于非线性最小二乘优化法的电力系统暂态波形分析方法，可准确求出电力系统暂态电压、电流波形中各个分量的角频率、幅值、初相角及衰减常数，并可广泛应用于各类暂态过程波形分析。

The decision function, that is expressed the speed of distribute of energy.

这个非线性泛函优化模型，表述了一类物体运动能量转化为机械功的实际问题。

Using finite difference time domain method, the electromagnetic field distribution of THz wave is simulated in a THz 2D PC splitter and by plane wave expansion method the dispersion relation and defect modes are achieved in a THz rotated PC waveguide.5. A woodpile three-dimensional (3D) PC with face-centered-tetragonal symmetry is one of the most popular 3D PCs because of its favorable band gap characteristics. Based on the woodpile fct lattice structure, we propose a novel woodpile THz lattice structure with comparatively decreased symmetry, better band gap properties and easy fabrication by varying some structure parameters.

计算结果为利用非线性光学差频方法产生THz辐射源的实验研究提供了深入和全面的理论基础；四、利用平面波展开法，通过改变二维THz光子晶体的结构参数，对二维THz光子晶体完全带隙进行了优化，分析出两种适合工作在THz波段的二维光子晶体结构；采用时域有限差分法和平面波展开法，计算出THz波在二维光子晶体"T"型分束波导，45度旋转波导中传输的电磁场分布以及缺陷模；五、Woodpile面心立方四角结构是三维光子晶体中被研究最广泛的结构之一。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。