1) shallow water wave equations
直接约化方法
1.
In this artical, we utilize the extended direct method to sove shallow water wave equations based on physics, and obtain several new similarity solutions of them.
求解非线性偏微分方程还有许多种不同的方法,如直接约化方法、广义条件对称方法以及分离变量法等等。
2) Direct reduction method
直接约化法
1.
With the aid of MATHEMATICA, the direct reduction method was extended and applied in 2+1_dimensional variable coefficient generalized Kadomtsev_Petviashvili equation(VCGKPE).
借助于MATHEMATICA软件 ,将直接约化法推广并应用到 2 +1_维变系数广义Kadomtsev_Petviashvili(VCGKP)方程 ,获得了VCGKP方程的若干相似约化 ,其中包括PainleveⅠ型、PainleveⅡ型和PainleveⅣ型的约化
2.
First, with the help of Mathematica,three kinds of reductions of MDWW equations areobtained by using direct reduction method.
借助Ｍａｔｈｅｍａｔｉｃａ，采用直接约化法获得ＭＤＷＷ方程的３种对称约化。
3) Direct Threaded Method
直接线索化方法
4) direct constraint procedure
直接约束法
1.
The direct constraint procedure,a new and steady solution to the contact problem,was applied to analyzed the collector head and the contact,and optimization techniques were developed to analyze the contact of the pantograph-catenary and to evaluate the key parameters of the spring system.
利用一种新型、稳定的接触问题求解方法———直接约束法,对受电弓和接触网进行接触计算分析,并将工程优化算法融入有限元分析的全过程,实现了弓头弹簧关键参数的优化设计。
2.
A direct constraint procedure was used to model the discontinuous mechanical behavior(such as sliding and disjointing) of faults and weak interlays in steep slopes to evaluate the safety of such slopes.
为正确评价断层对于岩石高边坡安全稳定性的影响,采用接触力学的求解方法——直接约束法模拟断层的滑移和脱开等不连续行为。
3.
The study on the interaction of gravity dam and plant of the Shuikou Hydropower Station under the action of upstream and downstream water pressures was made, based on a novel contact calculation method named direct constraint procedure.
基于一种新型的接触算法———直接约束法 ,研究水口水电站混凝土坝和坝后式厂房在上下游水压力下的相互作用情况 ,给出了厂坝间相互传递的推力与联接缝宽度的关系 ,为厂房的安全性评价提供了依据。
5) direct restriction
直接约束法
1.
Study on contact characteristics between seal and door based on direct restriction;
基于直接约束法的密封条与车门之间的接触特性研究
6) Direct Method
直接方法
1.
Optimization of adaptive direct methods of Fredholm integral equations of several variables;
多元Fredholm积分方程自适应直接方法的优化
2.
The Important Role of Direct Method of Social Work in FP Work at Grassroot Level;
试论社会工作直接方法在计划生育基层工作中的重要作用
3.
The practical stability in terms of two measures of impulsive differential systems and its perturbed systems is de-veloped by Lyapunov direct method.
运用李雅普诺夫直接方法研究了脉冲微分系统及其摄动系统关于两个测度的实际稳定性。
补充资料：直接
不经过中间事物的。与“间接”相对：直接取用｜直接关系。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条