查询词典 geometric difference equation

Compared with the research of the geometric nonlinear finite element method home and aboard in the components such as bar, plate, beam and shell element, the present problems is analyzed and the future research direction is described for the theoretical research and program design of geometric nonlinear finite element method.

综合比较了几何非线性有限元法在杆、梁、板、壳等方面的国内外研究成果，指出目前仍存在的问题，提出今后的发展方向，为几何非线性有限元的理论研究与程序设计提供参考。

As an updated multiscale geometric analysis tool, second generation Bandelets provide an optimal representation adaptively by multiresolution analysis and geometric directional analysis. In its realization, the search of optimal geometry directions that are as parallel to real geometries as possible is a critical step, which decides the performance and runtime of whole algorithm.

第二代Bandelets是一种新的多尺度几何分析工具，借助多尺度分析和几何方向分析自适应达到信号的渐进最优逼近，实现过程中最优逼近几何方向的寻找决定了整个算法的运行时间和性能。

In the third chapter,We study some geometric properties and spectral propertiesof the Jacobi operator on a solvable extension G of Heisenberg groups H.In the firstsection,we give the definition of G and some fundamental geometric properties on G.Inthe second section,we discuss the Integrability of certain subbundles and the geometricstructure of the induced foliations in case of integrability.In the third section,we studythe spectral properties of the Jacobi operator of G.

可解李群与类对称空间亦密切相关，Damcek-Ricci空间即是广义Heisenberg的一可解扩张李群，在第三章中，我们构造且研究了Heisenberg群的一可解扩张李群G的几何性质，第一节讨论了G的曲率，李指数映射，整体坐标等基本几何性质；第二章研究了TG的某些子丛的可积性及可积时诱导叶片的几何结构；第三节给出了G的Jacobi算子的特征值和相应的特征子空间。

Computing the geometric relationship among geometric invariants is a direct application of these techniques.

几何不变量之间的几何关系的计算是这些技术的一个具体应用。

But also to geometric attacks such as cropping and rescaling, etc. Particularly, geometric transform such as translate, affine transform and rotation is always a difficulty for watermarking because these transforms change the position of image pixels.

特别是对于平移、旋转和仿射变换这一类的几何变换，由于造成了图像像素位置改变从而使得水印的提取极为困难，一直都是水印算法的难点。

Select geometry sofa flower, with a strong monochromatic lines may pillow; the fight black and white checkerboard tile floors are the most common and most of the flavor choices; Rugs can also use geometric patterns, particularly in the artist hand-crafted are the most unique; enclosure is proposed to geometric modeling paste with a light-colored skin, and even the way through the performance of hollow sense of space.

选择几何图形的沙发布花，则可搭配强烈单色系的抱枕；黑白棋盘式的拼砖地板则是最常见也最对味的选择；块毯也可选用几何图案，尤其以艺术家手工制作者最具特色；柜体则建议以几何造型搭配浅色贴皮，甚至还可透过镂空手法表现空间感。

The aims of this thesis are researching some typical NURBS surfaces geometric continuous conditions and pointing out the effects of knot vector and the degree of surface on geometric continuities.

本文的目的是研究一些典型的NURBS曲面的几何连续条件，指出节点向量和曲面片的次数对几何连续性的影响。

The purpose of this study is to discuss students' geometric concept and meta-cognition of quadrilaterals by employing the geometric thinking model developed by Pierre van Hiele and the performance assessment.

本研究旨在结合van Hiele几何思考模式与实作评量，探讨学生的四边形几何概念及其后设认知。

Geometric measurement is one of important means controlling the manufacture of parts and the quality of assemblies. So raising the accuracy, speed and detection ratio of geometric measurement is the urgent affairs.

公差检测是控制零件制造和装配质量的重要手段之一，提高公差检测的精度、速度和检测率是制造业的当务之急。

This paper discusses the close relation of geometry and architectural aesthetics in the aspects of ratio scale, geometric curved lines, geometric curved surfaces, etc.

几何与建筑美存在着密切关系，从比例分割、几何曲线、曲面等方面探寻了几何与建筑美的奇妙关系。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。