查询词典 descent method

In this paper, the analysis indicated the result about modificative approximate calculating method of typical line, dovetailing into the experimental data. The calculation method, in this paper, can apply engineering analysis and design study of unsteady flow in the system of hydrodynamic piping network.

结果表明，本文推导的带修正的拟特征线数值计算方法的结果与我们的实验数据基本吻合，本文的计算方法可以应用到水力管网系统中非定常流动特性的工程分析与设计研究。

This paper analyses the indicator diagram filtered by traditional GFSF method, shows the advantages and disadvantages of it and provides a modificatory method.

本文分析了传统广义频率抽样滤波法处理示功图振荡的优缺点，并对其进行了修正。

Then based on the least squares support vector machine method, the modificatory model of the main environmental factors effect on the tanδ was advanced, and the genetic algorithm method was used to optimize the parameters of this model.

根据人工气候室内变压器套管tand的在线测量试验结果，分析了环境因素对电容型设备tand的影响情况，提出了基于最小二乘支持向量机的主要环境因素对tand影响的修正模型，并采用遗传算法优化了支持向量机的参数。

The penalty function method and modified Newton iteration method are adopted to solve the constrained nonlinear optimization problem.

基于截面特征的反求工程CAD建模方法已成功应用于基于特征的反求工程CAD建模系统RE-SOFT中，结合一个反求工程建模实例论证了该方法的可行性和适用性。

The new model is the same as that of traditional distillation process in expression style, and it is solved by an algorithm which combines the relaxation method with the modified Newton Raphson method.

引入变换变量的概念，将发生平衡反应的反应精馏过程模型变换为普通精馏过程模型，减少了迭代变量，避免了反应量的计算，并易于采用普通精馏的计算方法。

The paper contains four parts. In the first chapter, the application back ground and the main algorithms of the complementarity problems is introduced. In Chapter 2, some basic definitions and theories of complementarity problems are introduced. The 3rd chapter is the most important part of this paper, in which a modified smoothing Newton method is detailed; also the global convergence is established for the method.

全文共分为四章，各部分内容安排如下：第一章是绪论部分，介绍了互补问题的应用背景和近年来有关互补问题求解方法的研究成果；第二章是预备知识，介绍了与求解互补问题有关的一些定义以及相关的定理和推论；第三章是本文的重点，提出了求解互补问题的一种修正的光滑Newton算法，从理论上对算法的全局收敛性了证明；第四章是这种修正的光滑Newton法用于求解广义非线性互补问题中，同样证明了算法的全局收敛性。

An algorithm based on AD technique for the constrained optimization problems of device model parameter extraction is presented, which combines the modified Newton method with AD technique and uses the Rockafellar multiplier method to treat the constraint conditions.

提出了一个基于AD技术的有约束的器件模型参数提取算法，将AD技术与一种改进Newton法相融合，并利用Rockafellar的改进乘子法解决了约束条件的处理。

Combined with the sequential modular method and successive substitution method, carries out the simulation of chillers.

结合顺序模块方法和连续替代方法实现了系统仿真。

Phase modulator is not necessary in this method, while it is a crucial element in traditional SSD method.

该方法不需要相位调制器，而这类器件在传统SSD技术中是一个关键器件。

The specific heat capacity of AEFOX-7 was determined with micro-DSC method and theoretical calculation method, and the molar heat capacity is 214.50 J·mol-1·K-1 at

采用微量热法和理论计算方法研究了AEFOX-7的比热容，298.15K时的摩尔热容为214.50 J·mol-1·K-1。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。