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A method for the generation of Weierstrass fractal surface is presented,based on Helmholtz equation,with the Kirchhoff approximation,the calculus formula of light scattered field on the 1-D Weierstrass fractal suface is deduced.

采用Weierstrass分形函数模拟实际粗糙表面,从简谐光波满足的亥姆荷兹方程出发,利用基尔霍夫近似推导出一维Weierstrass分形粗糙表面的光散射场的积分公式,考虑遮蔽效应后数值计算并分析了表面散射光强的角分布特性。

According to the electric field integral equation of the surface, the recursive solution for the induced current on the slight rough surface is derived using the perturbation expansion of the surface, and the method for computing the interaction field is given.

根据粗糙表面电流积分方程并利用表面微扰展开,得到了微粗糙面表面极化电流的迭代解,给出了耦合电场的计算方法。

The roughen factor of roughened Ni electrode is calculated by compared the differential capacitances of smooth and roughened Ni electrode.

通过测量并比较电化学粗糙前后镍电极表面的微分电容曲线计算出粗糙镍电极的粗糙度,从而进一步计算出该粗糙镍电极的SERS增强因子约有四个数量级; 3。

To study the surface hydrophobicity of solid materials with the lattice Boltzmann method , the rough surface is approximately treated with simple periodic rectangular, saw-toothed and semicircular protrusions structure respectively. A two-phase lattice Boltzmann model is used to simulate the changes of surface hydrophobicity by calculating the contact angles of a droplet on rough surfaces.

将固体表面分别近似为具有简单的周期性矩形、三角形和半圆形微粗糙结构表面,建立两相流的晶格玻尔兹曼模型,通过测量不同微粗糙结构表面上液滴的接触角,探讨微结构形状和尺寸的改变对固体材料表面疏水性能的影响。

The flow field structure over wedges of 30 o, 40 o and 50o by shadowgraph technique, and the sandpaper has been used to change the surface roughness of the model wedges. The shock reflection over wedges of 30o and 40o are of Mach reflection.

本实验使用影图法来撷取於斜角为30、40及50度之楔行体斜面上震波反射的流场结构,并利用砂纸来改变模型表面之粗糙度,从极度光滑至表面砂纸平均粗糙度为0.0174cm共做四组实验来进行分析与比较。

In this article, based on an analysis of the geometrical property for waviness and roughness,it is suggested that it is unnecessry to find a parameter of the complete separated component of waviness and roughness.

本文在分析表面波纹度和粗糙度几何特征的基础上,提出没有必要寻求一个截然分离表面波纹度和粗糙度参数的看法。

The method connects the exponentially attenuating dividable auto-correlation function which is often used in the study of the lubricating behaviors of rough surfaces, to the theoretical model for studying the contact behaviors of rough surfaces and it will be a foundation for studying the lubrication and failure problems of sliding frictional pairs with anisotropic surfaces.

第三章对Onions-Archard的理论接触模型进行扩展,给出了计算各向异性粗糙表面接触性能的简便方法,并将粗糙表面润滑效应研究中常用的表征粗糙表面的指数衰减可分自相关函数和粗糙表面接触性能研究的理论模型联系了起来,为研究混合润滑工况下各向异性粗糙表面摩擦副的润滑和失效问题提供了基础。

As illustrated, Raman activity varies with conditions changing in roughening processes and the most reasonable condition for roughening was indicated.

初步的实验结果表明,采用机械粗糙和电化学氧化还原方法能够获得具有一定粗糙度的电极表面,但是该表面并不具有SERS活性。

When a coherent light is scattered by the rough surface, the scatted light forms a granular intensity distribution known as speckle. Speckles are coherent superposition of the light scatted by the rough surface. Therefore, speckles carrier some information of the rough surface.

相干光从光学粗糙表面散射时,结果在探测面上出现随机的颗粒状的强度分布,称为散斑,散斑是由粗糙表面上各面元的散射光波之间的干涉在空间域内形成的,所以散斑也是粗糙表面一些信息的携带者。

The 4different finishings show no salient differences over 3 sets of transparent image such as "concise-chaotic","light-heavy","liking-hating", while showing salient differences over 8 sets of transparent image such as "sparkling-cloudy","delicate-rough","shining-dusky","technological-traditional","natural-artificial","open-close","cool-warm" and "soft-hard".

4种不同表面处理在「简洁的-杂乱的」、「轻盈的-笨重的」、「喜欢的-讨厌的」三组意象上无显著差异,而在「晶莹的-混浊的」、「精致的-粗糙的」、「亮丽的-暗淡的」、「科技的-传统的」、「自然的-人工的」、「开放的-封闭的」、「凉爽的-温暖的」、「柔和的-坚硬的」八组透明意象上呈现显著差异。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?