分数维的计算采用改进的盒子计数法。
The modified box-counting method is used in estimating fraction dimension.
石英砂岩较岩屑砂岩具有较小的分数维值。
Cuttings sandstone has smaller fractional value than quartz sandstone.
正的特征指数和分数维可以定量表征湍流的间歇性。
The characteristics of chaos, are that positive characteristic exponents and fractional dimension can quantitatively express the turbulent intermittency.
对同一种颗粒，两种实验方法可以得到相同的分数维。
The same value of fractal dimension can be obtained from the two methods for certain kind of porous particles.
用分线方法计算了腾冲地区陆地卫星TM数据的分数维。
The Landsat TM data of Tengchong area were used to compute the fractal dimensions by the line-divider method.
分形几何学是用分数维定量地表征不规则几何体的复杂性。
Fractal geometry studies the characteristics of irregular 'geometric object and indicates quantitatively the complexity of geometric object by using concept of fractal dimension.
目的探讨脐动脉多普勒信号分数维测定在产科的应用价值。
Objective To evaluate the clinical value of fetal umbilical arterial Doppler spectrum fractal.
分数维的大小可以反映系统的复杂性，揭示系统的本质规律。
The fractional dimension reflects the complicity and essential features of the system.
文章应用分数维理论讨论了我国几条活动断裂系统的分段性。
The segregative characteristics of active fault system are discussed in this paper according to fractal theory.
简要介绍分形的基本概念，探讨用分数维法模拟矿体表面的途径。
The basic conception of fractal is introduced, and the way to generate an orebody surface by means of fractional dimension is discussed in this paper.
结果表明，区域垂直形变场分数维在地震前下降，同震时段降至最低。
The results show that the fractal reduces before an earthquake and is minimum during earthquake, according to which the criterion of dividing seismic risk is put forward.
定义了一种新的图像分数维一极值加权平均分数维，用于提取虹膜特征；
Then a new definition of fractal dimension-extreme value weighted mean fractal dimension is given, and with it the feature matrix is extracted. At last, a cor…
利用压汞曲线计算出来的分数维来定量表征储集层微观孔隙结构的非均质性；
The fractal dimension calculated from mercury injection curves is used for quantitative characterization of heterogeneity in micro-porosity structure of reservoir.
介绍了分数维图形的理论基础及其显示算法，并应用到自然树木的三维显示中。
This paper introduces the theory foundation and the display algorithm of the fractal graphics, which has been applied into the three dimensional display of the natural tree.
利用分形理论研究了琼西抱板群金含量分布的分数维结构特征，并对其含金性作出评价。
According to fractal theory, this paper studies the fractal dimensions of gold contents in Baoban Group, western Hainan.
本文讨论了星系及其系统的两种分布：具有分数维几何性质的自相似分布和无规则分布；
Two-component model for the distribution of galaxies and their systems, a self-similar distribution with a fractional structure and a random distribution, has been discussed.
用成形滤波器对高斯分布的白色过程滤波，便可以得到具有期望分数维的布朗运动分形图形。
The fractional Brownian motion based fractal Image with desired fractional dimension can be generated by applying its shaping filter to a Gaussian distributed white process.
分析了开采沉陷及复垦对土地利用类型的影响特点，利用分数维分析矿区景观格局的演变趋势。
The article analysis mine exploitation sink and resume infection feature to land use types, It utilize fractal dimension to analysis diggings sight pattern's direction of evolvement.
经过统计分析只有前两段回归直线得到的分数维才能定量表征储层的物性特征和孔隙结构特征。
Through statistical analysis only the former two linear regression can be fractional quantitative characterization of the reservoir characteristics and pore structure characteristics.
这种方法比较简单而切实可行，不但适合于粗糙面整体分维的计算，更适合于局部分数维的计算。
This method not only ADAPTS to predicting the whole fractal dimension of rough surface, but also ADAPTS to estimating local fractal dimension.
目的：用“分数维”彩色血流信号定量法来探讨肾脏内部彩色血流信号与肾脏结构及功能的关系。
Objective: To discuss the relationships of the color Doppler signals and the structures and functions of the kidney by Fractal Dimension.
在毛管压力曲线分形模型和分数维的基础上，能准确确定任意含水饱和度，提高了饱和度的预测精度。
Based on the fractal capillary pres sure model and the fractal dimension, the water saturation is calculated accurately, and the reliability of the water saturation is increased.
结论分数维定量参数可以准确反映彩色血流信号的丰富程度，该软件的临床应用价值值得进一步研究。
Conclusions Fractal dimensions can reflect the amount of color Doppler signals. The clinical value of this software is worthy of further researches.
介绍了对混凝土断裂面进行分形研究的重要性、分形理论及混凝土断裂面分析中几种主要的分数维测量方法；
The importance of study on the fracture surfaces, the fractal theory and the measurements of fractal dimensions are introduced.
本文引用分形几何理论研究了排土场废石块度分布的分形几何特征，讨论了废石块度分布的分数维计算方法。
In this paper, the theory of fractal geometry is used to study the fractal characteristics of the particles size distribution in rock-disposal site.
由于分数维不能反应灰度图像的方向性，本文利用矢量代数的基本知识，提出了一种灰度图像方向角的提取方法。
Because fractal dimension can not respond to the orientation of the gray level images, an image orientation Angle estimating method is proposed by basic knowledge of vector algebra.
然后 ，指出了多个变量波动之间协同关系的研究方法 ：分数维协整和方差协同持续 ，并介绍了各自的建模方法。
Then we go on with the correlation between multi-variable: fractional co-integration and co-persistence in variance, and discuss their modeling method.
用彩色多普勒超声检测脐动脉并获得多普勒信号，将此信号以音频形式输入计算机中，对此信号进行处理并计算分数维。
Umbilical arterial Doppler spectrum were obtained by color Doppler ultrasound, then Doppler signal were transformed into computer through sound frequency, and fractal were calculated.
用彩色多普勒超声检测脐动脉并获得多普勒信号，将此信号以音频形式输入计算机中，对此信号进行处理并计算分数维。
Umbilical arterial Doppler spectrum were obtained by color Doppler ultrasound, then Doppler signal were transformed into computer through sound frequency, and fractal were calculated.
应用推荐