查询词典 two-dimensional distribution

Two-dimensional matrix operations and one-dimensional Fourier transform, if the changes to what can be achieved to complete the integral operation matrix method can reduce computational complexity.

详细说明：用矩阵运算进行二维和一维傅立叶变换，如果改动一下，就可以实现矩阵方法来完成积分操作，可以减少运算量。

The problems of point - line - plane - volume; the facts of square - circle - triangle; the mysteries of central - peripheral - frontal - oblique - concave - convex; the right angle and perpendicular; of scale and position; the interest in post- lintel, wall-slab, vertical-horizontal; the arguments of two-dimensional and three-dimensional space; the extent of a limited field; the meaning of implied extension; the meaning of plan, of section, of spatial expansion - spatial contraction - spatial compression - spatial tension; the direction of regulating lines, of grids; the relationships of figure to ground, or number to proportion, of measurement to scale, of symmetry to asymmetry, of diamond to diagonal; the hidden forces, the ideas of configuration; the static, the dynamic: all these begin to take on the form of a vocabulary.

点-线-面-体的课题；正方形-圆形-三角形的事实；中央-边缘-正对-倾斜-凹入-凸出的奥秘；直角与垂直；尺度与位置；柱-梁、墙-板、竖直-水平的旨趣；两维与三维空间的思辩；局促场所的极限；暗示延伸的含意；平面、剖面、空间扩充-空间收缩-空间挤压-空间张拉的意义；控制线与网格的方向；图与底、数字与比例、尺寸与尺度、对称与非对称、菱形与对角线的关系；暗藏的力量、构型的想法；静态、动态━这一切都将发展成为语汇的形式。

In this paper,from the global viewpoint we first define the nonlinear control system on a two dimensional surface in the three dimensional Euclidean space, give the represwentation of the state equation under a loca coordinate sysgtem of the surface, and study the connectin between the equilibrium state of the nonlinear system and the egodesics on the surface.

我们首先从整体化的观点定义了一种建立在三维欧氏空间的二维曲面上的非线性控制系统，并给出了在曲面的局部坐标系下非线性系统状态方程的表达式，研究了非线性系统的平衡态与曲面的测地线之间的关系。

Via the stochastic averaging method, the four-dimensional system is reduced to a two-dimensional one. Through the logarithmic polar transformation , and then Girsanov theorem and Feynmann-Kac formula, the backword differential operator is then obtained. By expanding the eigenfunctions as a Fourier cosine series, the approximate analytic expansion of the moment Lyapunov exponent is then obtained.

首先在经典二元机翼颤振方程加入随机激励，通过随机平均法，Girsanov定理和Feynmann-Kac公式得到关于矩Lyapunov指数的特征值问题，其次采用Fourier余弦级数对特征函数进行正交展开得到系统矩Lyapunov指数的近似解析式。

Detail are introduced as following: transfering the LS equation to difference equation, setting the initial conditions for different shape explosive at different initiation way (point, line, plane, divergent or convergent); the dealing method of different edge conditions; how to draw the curve graph in two dimensional space or surface graph in three dimensional space with the calculated data.

本文提出了在三维直角坐标系中爆轰波传播LS方程离散化方法，建立了相应的差分方程，研究了对不同形状炸药在多种起爆形式（点、线、面、散心、聚心）下初值条件的设定，以及各种边界条件的处理方法。

The first 3D dimensional polymeric cluster 〓(8) has been synthesized though solid state reaction, the X-ray structural analysis showed that the three-dimensional framework of 8 has a very high degree of symmetry with three mirror planes and one four rotation axis in I4/mmm space group, and composed of two building blocks 〓 and 〓 bridged by S-Cu〓 and Cu〓-Cl bond.

化合物6非线性折射值n〓为-9.3×10〓m〓·w〓，显示自散焦性质，与我们以前观察到的现象相反，这可能是配体作用造成的；非线性吸收值α〓 1.23×10〓m·w〓，表现出较强的非线性吸收效应。

AIM: To investigate the characteristics in growth and metabolism of human dermal flbroblasts in two-dimensional and three-dimensional culture.

目的：观察人皮肤成纤维细胞在二维和三维培养系统中的生长和代谢特性。

In this paper,the transonic two dimensional airfoil integral equation given by Nixon [1,2,3] has been extended to three dimensional thin wing case.

本文将Nixon[1，2，3]对二维薄翼型所建立的跨音速积分方程推广到三维薄机翼情况。

Thissystems. This paper sets up two-dimensional and three-dimensional models of dissociable transformer by ANSYS. 2-D analysis takes no

本文利用ANSYS 软件，分析了可分离变压器各种可能会影响传输效率的因素，并为实际系统选择模型提供了参考依据。

An original two-dimensional Causes-Results Theory was promoted to be three-dimensional Orbit Intersecting Theory, which can be utilized to illuminate mechanism and measurement of coupling; and Domino Theory from H·W·Heinrich was redefined into "Mechanism of Eliminate and Uncoupling", which extend the connotation and thought of original theory and was discussed by this dissertation.

基于系统工程理论，论述了人-物-环系统中对HMTE风险构成因素的识别，在分析单因素、双因素和三因素耦合致因机理以及现有理论的基础上，提出了三维轨迹交汇理论，并建立了耦合致因模型，探索了HMTE直接耦合机理、间接耦合机理和风险构成的耦合度量，提出了剔除解耦、隔离解耦和支撑解耦三种机理的模型和方法。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。