• 本文研究了填充维数与上盒维数的关系。

    In this paper, we discuss the relation between packing dimension and upper box dimension.

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  • 结合计盒维数算法的原理,给出一种新的盒子边界。

    Based on the box counting method, a new bound of box size was put forward.

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  • 基于归一化尺度计盒维数方法研究了超声波分形特征。

    Fractal properties of ultrasonic signal are researched based on normalized scale box-counting dimension method successfully.

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  • 模拟结果表明熔体过冷度和树枝晶的计盒维数呈近似抛物线关系。

    The results of simulations indicate that the relationship between melt undercooling and box counting dimension of dendrite is close to parabola.

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  • 盒维数的简单统计结果可以作为PQ神经网络分类器的输入特征量。

    After simple statistics, the dimension can act as the input vector of ANN for PQ classification.

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  • 本研究采用计盒维数刻画了延龄草不同生境下的种群空间分布格局。

    This study depicts the population space distribution under different living circumstances using Box counting dimension.

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  • 本文主要探讨几个特殊自相似集的豪斯道夫维数与盒维数的计算方法。

    In this paper, we discuss the calculation method of Hausdorff dimension and box dimension for several special self-similar sets and obtain the corresponding results.

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  • 讨论了滤波器中时间序列的短时分形盒维数的定义及分形模糊控制函数形式及选用方式。

    The definition of short-time fractal box dimension and the fuzzy control function of the filter are discussed.

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  • 在实数域分形盒维数计算方法的基础上,提出了双金字塔数据形式的盒维数快速计算方法。

    In this paper, a fast approach for box dimension estimation based on a dual pyramid data structure is developed.

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  • 分析了一阶分形模糊控制滤波器的频率-幅度特性,白噪声和有色噪声分形盒维数的变化;

    The frequency-magnitude response of the fractal filter and the change of fractal box dimension of white noise and color noise are analyzed.

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  • 采用计盒维数方法对霜层生长图像分析表明,充分生长的霜层在一定尺度范围内具有分形特征。

    The Analyses on frost image by box-counting method express that full growth frost was a fractal structure ranging in some scale.

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  • 根据汽轮机故障的分形特征,采用分形盒维数方法进行了不同故障试验数据的分形盒维数研究计算。

    Using box counting dimension method the different type of turbine fault with fractal characteristic is numerically researched.

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  • 随后采用数字图像处理的方法,将原图像转换为二值图,并使用计盒维数的方法对图像进行了分形分析。

    The original pictures were converted into binary images, and fractal analysis was performed with the box-counting dimension.

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  • 本文根据不同煤体强度条件下综放开采顶煤的位移曲线,采用盒维数的分形计算方法对其进行了维数分析。

    Based on the displacement curves of top coal with different strength, the fractal dimension of which is analyzed and calculated according to the box dimension.

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  • 在信号分形盒维数特征的基础上,提出利用噪声与授权信号分形盒维数的差异对授权用户是否存在进行检测。

    Based on fractal box dimension feature of signals, this paper presents a spectrum sensing method employing the difference of fractal box dimension be tween noise and licensed signals.

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  • 通过分析木材试样的扫描电镜照片,研究了木材横纹剖面的多孔结构特征,采用盒维数法计算了其分形维数。

    The porous structure of wood samples on their cross sections was analyzed using scanning electron microscope images, and their box-counting dimensions were calculated.

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  • 在对焊点质量与焊接过程中信息的盒维数统计物理关系的分析基础上建立了基于模糊控制理论的焊点质量判定系统。

    The qualitative judgment system based on fuzzy control was built after analyzing the relation between quality of spot welding and the box fractal dimension of signals in spot welding.

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  • 利用分形理论中的计盒维数、信息维数和关联维数,采取变换取样空间的方式研究了武夷山双遗产地景区系统分形特征的多尺度效应。

    By using box dimension, information dimension and correlation dimension, fractal features of Wuyishan Natural and Culture Heritage were studied at a multi-dynamic scale.

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  • 目前计算分数维广泛采用的方法是盒维数法。但对于灰度图像而言,盒维数计算的结果太粗略以致于很难将它作为进行图像分析的特征。

    The popular method for fractal dimension estimation is box-counting method, but as to gray level images, the results are so coarse that they could hardly be used as the feature for image analysis.

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  • 应用计盒维数法的基本原理考察了大豆酸奶和酸牛奶是否具有以自相似性为特征的分形结构,并最终确定豆浆酸奶和酸牛奶的分形维数分别为1.9105、1.9268。

    Box counting method was applied to investigate the fractal structure and the fractal dimension for soy based and dairy yoghurt was determined to be 1.9105 and 1.9268 respectively.

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  • 现阶段的分形动力学生长模型多采用DLA模型,而维数的计算多依赖于盒计数法。

    DLA model is often adopted in the fractal dynamics growth models, and the box dimension calculation method is often used to calculate the dimension.

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  • 基于分形理论和计算机图像处理技术,编制计算材料断口形貌计盒分形维数的MATLAB程序。

    Based on the fractal theory and computer images analysis technique, a MATLAB program which computes box fractal dimension of material fracture was designed.

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  • 结果显示差分计盒方法可以将路面图像转换成另一种图像,该图像的分形维数可以把简单的阈值应用到路面裂缝的分割。

    It is shown that the improved DBC approach can convert pavement image to one whose fractal dimension permits simple thresholding for segmentation of pavement cracks.

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  • 另外,在计算水系维数时采用的矢量计盒算法,比传统的栅格计盒算法具有更强的优势。

    In addition, vector box-counting algorithm was applied in the research to calculate the regional water system dimension, which is a better method than the traditional grid box-counting algorithm.

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  • 为有效计算局部放电超高频信号的网格维数,提出了一种二维曲线网格维数估计方法,比原差盒计数法具有更准确的估计结果。

    To calculate the gridding dimension of PD UHF signal, a gridding dimension estimate method is presented, which has a more accurate estimate results than the original difference box-counting method.

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  • 尝试应用分形理论表征多孔材料的微结构,介绍了曲线和孔隙面积分形维数的定义,并采用盒维法对2个分形维数进行计算。

    Fractal theory is applied to do it. The definition of curve and pore area fractal dimension is introduced. Two fractal dimensions are determined by box-counting method.

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  • 尝试应用分形理论表征多孔材料的微结构,介绍了曲线和孔隙面积分形维数的定义,并采用盒维法对2个分形维数进行计算。

    Fractal theory is applied to do it. The definition of curve and pore area fractal dimension is introduced. Two fractal dimensions are determined by box-counting method.

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