变分,variation
1)variation[英][,ve?ri"e??n][美]["v?r?"e??n]变分
1.The generalizedvariational principle forsolving 3-dimensional eddy current problems;求解三维涡流问题的广义变分原理
2.A conclusion of optimal trajectoryvariation;一个最优轨线变分的结论
英文短句/例句
1.To decompose, decay, or undergo a nuclear transformation.（核的）蜕变；衰变分解、衰变或经历原子核的突变
2.variable-resolution image analysis可变分辨率图像分析
3.Gerschgorin Variations of Partitioned Matrices;分块矩阵的Gerschgorin变分
4.Variational Inequalities, System of Variational Inclusion and KKM Theorem;变分不等式、变分包含组以及KKM定理
5.Quasi-variational Inequality and Variational Inclusions for Fuzzy Mapping;模糊映象的变分不等式和变分包含组
6.Every vector can be resolved into covariant or into contravariant components.每个矢量都可以分解成协变分量或逆变分量。
7.variable element of semivariable cost半变动成本的变动部分
8.Functions of Complex Variables & Integral Transformatio复变函数与积分变换
9.delayed disintegration延迟蜕变[衰变,分解]
10.alysis of variance离散分析;变量分析;变异分析;变异数分析;变异因素分析法
position deviation transmitter成分（偏差）变送器
12.graduated rheostat分级变阻器,分级电阻箱
13.differential equation with separated variables分离变数型微分方程
14.differential equation with separable variables可分离变量微分方程
15.All changes of matter fall into two broad classes:physical and chemical changes.物质变化分为两大类：物理变化和化学变化。
16.Analysis on the Status Change and the Process of Gradual Change Progress for Transformer in Operation;运行中变压器的状态变化及渐变过程分析
17.Rheological property and viscosity variation mechanism of variable viscosity diverting acid based on betaine甜菜碱类变黏分流酸的流变性及变黏机制
18.Mathematics Model Analysis of Variable Pitch Screw变螺距变槽深变槽宽螺杆的数学模型分析
相关短句/例句
variational[英][v??i"ei??n?l][美][v?ri"e??n?l]变分
1.Avariational method with differential forms gives better precision for numerical solution of transport critical problem based on spherical geometry, and its computation seems simple than other approximate methods.对于球几何问题 ,讨论了一种基于微分方程的变分形式求解方法 ,数值计算显示达到了较满意的精度 ,而且计算过程比起其他近似方法要简单
2.A general model of two phase image segmentation based onvariational level set method is proposed,and the region model is based on the image general probability distribution function.基于变分水平集方法建立了两相图像分割的通用模型,其区域模型基于图像的一般概率分布函数,通过变分方法得到水平集函数的演化方程和符合常值分布、Gauss分布及Rayleigh分布的参数估计。
3.Dissipative and coherent effects of X-point solitons are investigated on the basis of dynamicvariational formulation in two_dimensional photonic bandgap (PBG) structure of square lattice.采用变分方法对于二维矩形光子带隙结构中X点孤子的耗散以及相干作用进行了动力学分析。
3)variable-domain variation变域变分
1.Pseudo-potentialvariable-domain variational FEM for hybrid problem of transonic airfoil;跨音速翼型杂交问题的赝势函数变域变分有限元法
4)variable domain variation变域变分
1.In order to overcome this difficulty, Liu Gao-Lian developed avariable domain variation finite element method, in which the unknown interfaces were regarded as the boundaries of one variable domain and considered as unknown parameters in thevariable domain variation, so the s.刘高联针对未知界面问题发展了一种变域变分有限元方法,该方法将未知界面看作是一个变化区域的边界,采用变域变分将未知界面结合在变分泛函中,使其与求解流场的控制方程结合起来,从而将未知界面的求解和流场的求解完全耦合进行,因而是一种处理未知界面的独特工具,极适合于气动外形的设计求解。
2.In this paper, in order to solve the variable domain problem, by using thevariable domain variation formula and discrete the variation function by the self-adapting finite element, the extremum problem of algebraic function was introduced.本文在用有限元法求解变域问题时,利用变域变分公式将问题化为求泛函的驻值,但该驻值常常是一个鞍点,因此给计算带来不便,我们在这里利用最小二乘法将求驻值的问题转化为求另一泛函的极值问题,然后采用LMF方法和共轭梯度法求解极值问题。
5)variation[英][,ve?ri"e??n][美]["v?r?"e??n]变数;变分
6)variational analysis变分分析
1.The stability analysis of the tailing dam in different working conditions was carried out using the studied and developed 2-Dvariational analysis program of the tailing dam, and comparative analysis with limit equilibrium analysis method was made.分析研究了变分法在尾矿坝稳定性分析中的应用,利用研究开发的尾矿坝二维变分分析程序对不同工况的尾矿坝进行了稳定性分析,并与极限平衡分析法进行对比,结果表明:分析结果比较接近,采用对数螺旋滑动面进行变分分析更合乎实际。
2.This dissertation focuses on the study ofvariational analysis of symmetric cones and perturbation analysis of optimization over symmetric cones.本论文主要建立对称锥的变分分析并给出对称锥优化问题扰动分析的理论结果,主要内容可概括如下:1。
延伸阅读
变分变分variation变分【varia6佣;B叩“a”H“」J.L.Lagrdnge(【1」)引进的表示一个自变数或一个泛函的小位移的数学术语.变分法是研究极值问题的一种方法，在这种问题中研究由自变量的小位移而引起的泛函的变分.这是研究极值问题的主要方法之一(因此有变分学(v面ational calculus)这名称).设f是给定在空间x上的一个泛函，又设v是一参数空间.自变量xl，‘x的变分(variation ofthe盯gull祀nt)是空问X中一条普通曲线义(t，。)，:簇r蕊刀，!毛o，刀)o，”6V，它在有效限制所确定的某一邻域中通过尤t，，设t二0的值对应于、、，.当U跑遍所有参数的集合时，变分跑遍某一个由x.，出发的曲线族.在有限维和无穷维分析中，由L:，grallge开始，常常用方向变分(direc石onal variation)，其中V二X而戈(t，门二x‘，十tv.在这情况向量v被称为变分.然而，另外几类变分用于几何学，变分法，特别在最优控制理论中;这些包括折线变分(polygo似1var谧tions)，针形变分(needle一sha详d Variations)或尖峰变分(sP议ed variations)和与滑动模态(slid毗re翻-mes)相联系的变分([2]，[3」).变分空间的选择和变分本身的构造是得出极值必要条件中的很重要的因素.亦见泛函的变分(variation of a functional);G二teaux导数((沦teaux derivative);Fr亡d犯et导数(Fr任ehetdirivative);泛函导数(f加c石onald币vative).
