查询词典 sensitive element

This paper is devoted to solving linear saddle point problems, Specifically, We consider nonsymmetric systems, written as usual in block form, where the upper left block is an invertible linear operator with positive definite symmetric part. Such saddle point problems arise, for example, in certain finite element and finite difference discretizations of NavierStokes equations, Oseen equations, and mixed finite element discretization of second order convection-diffusion problems.

中文题名求解鞍点问题的迭代方法副题名外文题名论文作者冯丽红导师曹志浩教授学科专业计算数学研究领域\研究方向学位级别博士学位授予单位复旦大学学位授予日期2002 论文页码总数87页关键词鞍点问题迭代方法网格离散线性方程组馆藏号BSLW /2003 /O241 /15 论文针对鞍点问题的求解分析了一些典型的快速算法。

Quotient of the luminous flux incident on an element of the surface containing the point, and the area of that element.

照射到表面一点处的面元上的光通量除以该面元的面积。

By means of the self-designed equipment used for the interaction test of tread element with road surface, the contact behavior of tread element and the effects of the design parameters are studied for the first time in the domestic.

应用自行设计的胎面单元与路面相互作用试验装置，在国内首次研究了胎面单元的接地特性和设计参数对单元特性的影响，并以此对本文的数值研究结果作出验证。

According to the element structure theory, a theoretical floatation of coal was analyzed base on the organic element makeup of coal surface and the relationship between water flow.

依据分子结构理论，从煤表面的有机分子组成和疏水性间的关系分析了煤的理论可浮性。

When we are designing a webpage, sure meeting considers the issue of resolution, science and technology develops what we use normally now is the resolution of 1024*768 and 800*600, now the width that is used to 778 to resemble element is more very on the network, often make whole webpage very depressive below the resolution of 800, have kind of airtight feeling, actually this width is the widest width that points to the webpage on the resolution in 800*600, do not represent optimal visual sense, might as well the elephantine element that tries 760~770, no matter be in 1024 still can achieve below the resolution of 800 relatively the visual effect of beautiful.

我们在设计网页的时候必定会考虑到分辨率的问题，科技发展到现在我们通常用的是1024*768和800*600的分辨率，现在网络上很多都是用到778个象素的宽度，在800的分辨率下面往往使整个网页很压抑，有种不透气的感觉，其实这个宽度是指在800*600的分辨率上网页的最宽宽度，不代表最佳视觉，不妨试试760~770的象素，不管在1024还是800的分辨率下都可以达到较佳的视觉效果。

In the traditional studies about endocentric compounds, the semantic function of a pre-element is divided into two kinds: restriction and description, however, restriction cannot summarize the semantic function of pre-element opposite to description, which should be summarized by differentiation.

在传统的主从复合词研究中，都把前加成分的语义功能二分为"限制"和"描写"。

Finally, we discuss that the combination of conforming quadrilateral Q\ element and nonconforming quasi-Wilson element on anisotropic meshes. The error estimates of the energy norm and L~2-norm are obtained, which are the same as those of the traditional methods.

最后，本文研究了逼近空间取为协调的四边形Q_1元和非协调类Wilson元的情况，同样在剖分网格不满足正则性条件下，得到了与传统方法相同的能量模和L~2模误差估计。

Based on the continuity equation of groundwater and the normal velocity formula of free surface, taking element e as a subdomain R in the seepage flow domain R, according to variation principle, the finite element equation of seepage field can be obtained.

由地下水的连续方程和自由面的法向流速公式，把单元e作为渗流求解区域R上的一个子域ΔR，根据变分原理，得到岩土体渗流场有限元方程。

The finite element stiffness matrix of the equivalent beam or pipe of the cracked leg of the platform is derived using the finite element method.

采用有限元分析方法和断裂力学方法，将含裂纹构件的裂纹段以线弹簧处理，建立了带有裂纹损伤桩腿的等效梁和管单元的单元刚度矩阵的计算方法。

In the dissertation, meshless element free Galerkin method which utilizes moving least square is used for solving heat transfer problems. Lagrange multiplier method is used to deal with the essential boundary condition. Some parameters in element free Galerkin method, which influence the precision, are also discussed in the numerical simulation. The adaptive method of meshless method is also stated.

本文采用了基于移动最小二乘近似的无网格伽辽金法计算了热传导问题，采用拉格朗日乘子处理本征边界条件；讨论了无网格伽辽金法各个计算参数在数值模拟中对计算精度的影响；并对无网格的自适应方法进行了研究。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。