quasi-Newton method

The switch control method includes the double thrust ( DT) switch, the switch between phase plane control ( PPC) method and quasi-slide control ( QSC) method, and the angle feedback ( AF) switch.

该切换控制方法主要包括双重推力水平切换，相平面控制律与准滑模控制律切换和角度反馈切换。

The Method of Quasi-upper and Low Solutions for Terminal Value Problems of Differential Equations with Discontinuous Terms

含间断项的微分方程终值问题的拟上下解方法

Modified Line Search Technique of Quasi-Newton Method for Nonlinear Equations

非线性方程组拟牛顿法中线性搜索的一种改进

The quasi-optical mode exciter with the method of quasi-optical conversion has high purity output mode, but its disadvantage is narrow bandwidth, low efficiency, complicated structure and many of its modules need high accuracy fabrication and assembling.

利用准光变换设计的准光模式激励器虽然其输出模式纯度高，但其输出为点频，频带极窄，效率较低，且部件多、结构复杂，各部件的加工装配精度要求高。

Method of quasi-proportional navigation and laws of dive overhead-attack guidance for target homing anti-tank missiles are also presented.

给出了准三点导引法和适用于遥控反坦克导弹的掠飞击顶制导律；

One Application of Column Update Quasi-Newton Method in Parallel Algorithm

列修正拟Newton法在并行算法中的应用

The rest of this paper is organized as follows. Chapter 3 applies the method in Chapter 2 into two-stage stochastic programs with recourse, generating the observations by Monte-Carlo ( MC) method or by Quasi Monte-Carlo ( QMC) method respectively.

论文第三章介绍了将第二章给出的方法用于求解一种二阶段带补偿随机规划问题，分别给出基于Monte-Carlo（MC）方法产生观察点和基于拟Monte-Carlo（QMC）方法产生观察点的算法。

The new method is quasi-continuous and the measurement time can be determined accurately, so it is especially suitable for materials with thermal hysteresis, such as Nd_ 2 CuO_4.

由于此法为准连续测量法，变温速率可精确设定，所以对有明显热滞效应的材料如电子型超导体母体材料Nd2CuO4等的热电势测量有十分重要的意义。

Dynamical Lie Algebra Method for Highly Excited Vibrational State of Quasi-linear Tetraatomic Molecules

准线型四原子分子高激发振动能级的动力学李代数方法

Tetraethoxysilane ( TEOS), methyl methacrylate ( MMA) and 2-hydroxy propyl methacrylate ( HPMA) were used to prepare SiO 2/ PMMA hybrid quasi-gels by sol-gel method. The hybrid quasi-gels were used to modify PP as filler.

以正硅酸乙酯（TEOS），甲基丙烯酸甲酯（MMA）为主要原料，甲基丙烯酸β羟丙酯为活性单体，溶胶凝胶法制备PMMA/SiO2杂化准凝胶，并以其为填充物对PP进行复合改性。

This article uses nonlinear finite-element method, including both geometric and material nonlinearity, when modeling a axisymmetric loaded tank shell model in a typical range of dimension by a quasi-static elastic-plastic buckling approach.

在考虑大变形几何非线性和材料非线性条件下，本文利用非线性有限元法，以轴对称载荷壳单元模型，对一定尺寸范围内的储罐进行了准静态弹塑性屈曲分析。

Based on phase-modal transformation technique and distributed parameter transmission line model, the algorithm utilizes quasi-Newton method to resolve non-linear equation sets allowing for data sampling asynchronization at both terminals.

该算法采用相-模变换技术和分布参数线路模型，考虑了双端数据的不同步问题，运用拟牛顿法迭代求解非线性方程组。

Analyzing quasi-Newton method prepares mathematical theory for trajectory optimization.

通过分析拟牛顿法及其改进算法的原理，给出算法实现的迭代步骤，为静电喷涂机器人轨迹优化做好数学理论准备。

When solving the nonsymmetric linear systems, the paper makes the total backward perturbation analysis to QMR method, and uses the total quasi-minimal backward perturbation ( TQMBACK) technique. So the restarted total quasi-minimal backward perturbation ( RTQMBACK) method is given.

同样地，对求解非对称线性方程组的QMR方法作出了向后扰动分析，结合总体向后扰动范数拟极小化的技巧，给出了求解非对称线性方程组的总体拟极小向后扰动（TQMBACK）方法。

Study on the limit temperature of steel frame structure using quasi-Newton method

基于拟牛顿法的多层多跨钢结构火灾作用下极限温度研究