查询词典 variational method

Based on nonlinear integral equation,the inversion equation is derived by using the variational principle.

该方法基于非线性积分方程，利用变分方法来建立反演方程。

Based on the superpotentialfunction,the variational principle on different function sets is derived for elastoplasticfrictional contact problems.

利用超势函数概念，导出了在不同函数集上的弹塑性摩擦接触问题的变分原理。

The variational current of dew point was high at noon.

水稻群体中露点温度的脉动远大于温度和相对湿度，总的趋势是中午露点温度较高。

When production costs fluctuate and yet,at the same time,selling price can not be adjusted because it is determined by the equilibrium of the entire market,at the aggregate level,where different players have different cost advantages in different products and processes. We show that the variational inequality approach is suitable for dealing with this differential game.

当产品生产成本大幅波动时，产品的销售价格并不能完全的由单独的生产商随意根据自身成本变动调整，因为在寡头垄断市场中，产品的最终售价须由市场的所有参与者共同确定，而不同的厂商在不同的产品与工艺流程中有不同的竞争成本优势。

Lions and some other variational methods, we prove the existence of nontrivial solutions of the equations under the Dirichlet boundary condition.

ions的集中紧性原理等变分方法，得到了方程在Dirichlet边值条件下的非平凡解的存在性。

The variational rules of the activity of SOD and CAT of Egeria najas is coincident for all durations of exposure, at first the activity of SOD and CAT were increased, subsequently the activity of SOD and CAT were declined.

在Hg~(2 )处理的96h内，细叶蜈蚣草SOD和CAT活性变化规律基本是一致的，只是酶活性的相对大小有所变化，即细叶蜈蚣草SOD和CAT活性随Hg~(2 )增加先上升后下降。

The dissertation presents a mathematical modeling approach for the high-speed flexible linkage mechanisms equipped with bonded piezoelectric sensing/actuating elements employing a mixed variational approach with Hamilton's principle in conjunction with the finite element formulation. This model includes both the terms coupling the elastic and rigid-body motions of linkage mechanisms and the terms coupling the elastodynamics and piezoelectricity of the elements, incorporating their effects upon the mass and stiffness matrices which are in general non-symmetric.

本文以国家自然科学基金资助项目《弹性连杆机构有害振动的主、被动控制及混合控制研究》（资助号：59605001）和广东省自然科学基金项目《开链及闭链机构有害振动控制研究》（资助号：970381）为依托，对高速弹性连杆机构振动的主动控制中的建模、求解、控制律的选择、作动/传感元件的优化以及实验研究等几个关键问题进行了比较深入细致的研究，取得了一些具有重要理论意义和重大实际应用价值的成果。

The results of computation show that the relative variational rate of the volume and shape of particles is in direct proportion to the square of electric field intensity, and relates to the character of ER.

研究结果表明：悬浮颗粒的体积和形状的相对变化率均与电场强度的平方成正比，并与 ER 本身的性质有关。

Objective:To explore the clinical significance and variational type of electroencephalogram in infantile spasm.

目的：探讨婴儿痉挛脑电图的临床意义及变异类型。

In this paper, a semilinear elliptic equation with critical Sobolev-Hardy exponents is studied, the existence of nontrival solutions for which is proved by the linking theorem in variational calculus.

该文研究了一类带有Sobolev-Hardy临界指数的半线性椭圆方程，运用变分理论中的环绕定理证明了方程非平凡解的存在性。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。