对数坐标

In order to determine the fractal dimension of the interface, structures with different rotation radii are set in the transition region. By using above regulation, the number of surface molecules of each rotation structure with certain radius can be obtained, then correlate these molecule numbers with the corresponding radii, in a logarithmic coordinate system the asymptotic slope of the correlated curve is the fractal dimension of the liquid-vapor interface.

为了确定界面的分形维数，在气液过渡区中作出不同回转半径的结构，利用（2～5）/1.2r〓规则找出其中所包含的气液界面上的分子数，然后将这些分子数与回转半径关联，在双对数坐标中此关联曲线的渐近斜率便是气液界面的分形维数。

Changing the form of coordinate axis could observably improve the quality of fingerprint, such as logarithmic coordinate axis or axis break.

适当地调整图谱的坐标形式，如采用对数坐标形式或采用两段不同的单位坐标值形式等，可显著改善指纹图谱的质量。

The model types include frequency histogram,cumulative frequency distributing graph and theoretical model with double logarithmic coordinates.

模型类型包括频率直方图、累积频率分布图以及用双对数坐标表示的理论分布模型。

The applications of Matlab in engineering calculation of unit operations by exemplifying several typical calculations involved nonlinear equation,interpolation,numerical integration,graphic method and log coordinate drawing are discussed.

以几个典型问题为例，讨论了Matlab在求解非线性方程及方程组、插值法获取物性参数、积分、绘图计算及对数坐标图的绘制等化工原理工程计算中的应用。

The reason for this is that these data can not be fairly matching with a straight line on the double logarithm coordinates.

直接应用分形分布模型N=C／rD难于分析国际原油价格数据，因为这些数据在双对数坐标上很难与一条直线符合良好。

Key words: current transformer; volt-ampere characteristic test; saturation curve; logarithmic coordinates; scale

为在伏安特性曲线图中体现出铁芯饱和前电流值的细微变化，试验数据的尺度变换技巧实现了特性曲线在对数坐标中的显示和打印。

At the same time, under the condition of small strain, firstly, the secant shear modulus was always larger than the tangent shear modulus. Secondly, when the logarithmic coordinates were applied to describe shear strain, the decrease of shear modulus with shear strain could be expressed by reversed S shape curve with two inflexion points, and through analyzing and validating, the deduced equation could perfectly reflect this characteristic. Finally, different stress paths and strain areas would lead to different attenuation trends.

而且，在小应变范围内，割线剪切模量总是大于切线剪切模量；当剪切应变采用对数坐标表示时，剪切模量随着剪切应变的增加而衰减，且衰减的规律都可以表示为带有两个拐点的反S型曲线，经分析验证本文所得公式3可以对此特性进行很好地反映；但应力路径、应变范围不同其衰减幅度不同。

However, if the evaluation length is too short, the structure function logarithmic value of surface profile is scattering.

评定长度也基本上不影响分形维数的大小，但是当评定长度过小时，轮廓曲线的结构函数双对数坐标图会出现离散化现象。

The approximate solution shows that there is a rectilinearity in the pressure and time semilogarithmic coordinates.

注水井压降试井的近似解表明在压力与时间的半对数坐标下呈直线关系，直线的斜率与截距取决于注采比、注采井距、注采厚度比、注采产能系数比等参数。

The results show that the absorbed hydrogen content is monotonically increasing functions of precharging current and precharging time in the log-log scale.

结果表明，在双对数坐标中试样中的氢浓度分别是预充氢电流密度和时间的单增函数。

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。