查询词典 variational

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。

It is known theoretically that to the variational problem with weak constraints in cost functional J, its Euler equation can be discreted into difference format, by using matrix theory and difference method of partial differential equation we know that there exists optimal selection of weight factors in the cost functional under the condition of minimal variance between analysis field and ideal field.

从理论上可知，对于目标泛函J带有约束条件的变分问题，将其Euler方程离散成差分形式，利用矩阵理论和偏微分方程的差分方法，则目标泛函的权重因子，在分析场和理想场的最小方差意义下存在最优选取。

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。

At first, the application of complementary variational method in three dimensional electrostatic field computation is discussed.

首先，研究了互补变分方法在三维静态电磁场计算中的应用。

In this paper a new variational method for approximating the semilinear singular parabolic equation is given by using continuous finite elem...

本文利用连续时空有限元法对半线性奇异抛物方程进行了研究，利用线性化方法给出了有限元解的存在性证明和理论误差估计。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。