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中国地质大学科学技术发展院夏宇轩（博士生）,蔡建超等地空学院 2018, FRACTALS-COMPLEX GEOMETR（图）Y PATTERNS AND SCALING IN NATURE AND SOCIETY, A NEW METHOD FOR CALCULATING FRACTAL DIMENSIONS OF POROUS MEDIA BASED ON PORE SIZE DISTRIBUTION
分形；毛细管；假设的；计算；多孔介质；孔隙空间；迂曲度；分形维数
2021/10/21
日前，2018级博士研究生夏宇轩在国际学术期刊《分形》发表题为《一种基于多孔介质孔径分布的分形维数新计算方法》的论文，入选Mathematics学科领域高被引论文。在该论文中，夏宇轩提出了一种基于分形毛细管假设的计算多孔介质孔隙空间和迂曲度分形维数的新方法。
FRACTAL DIMENSIONS FOR RADIOISOTOPE POLLUTION PATTERNS BY NUCLEAR POWER PLANT ACCIDENTS
Chernobyl, deposit fractal Fukushima
2015/5/7
The radioisotope pollution shows two types of patterns: dry and wet deposits for nuclear power plant accidents. Two surface pollution patterns were analysed by fractal. In Fukushima nuclear power pl...
A nonconventional strong law of large numbers and fractal dimensions of some multiple recurrence sets
strong law of large numbers nonconventional ergodic averages
2011/1/21
We provide conditions which yield a strong law of large num-bers for expressions of the form 1/N PN n=1 FX(q1(n)), · · · ,X(qℓ(n)) where X(n), n 0’s is a sufficiently fast mixing ve...
We study some properties of a class of random connected planar fractal sets induced by a
Poissonian scale-invariant and translation-invariant point process. Using the second-moment
method, we show t...
基于色调分形维数的柑橘糖度和有效酸度检测（Sugar Content and the Valid Acidity Test of the Citrus Based on the Fractal Dimensions of Hue）
柑橘 糖度 有效酸度 机器视觉 无损检测 色调 分形维数
2010/4/1
研究了宫川温州蜜柑糖度及有效酸度的机器视觉检测技术及影响检测精度的因素。对机器视觉系统采集的柑橘图像进行图像裁切、亮度法去图像背景和RGB空间至HSI空间的转换，将柑橘色调范围分割为0°～20°、20°～40°、40°～60°、60°～80°、80°～100°和100°～120°共6个区域，提取各区域色调分形维数，以此作为BP神经网络输入，无损检测宫川温州蜜柑糖度及有效酸度。167个测试样本的检测...
冲击作用下粘性土壤破碎体的分形维数与影响因素（Fragmentation Fractal Dimensions of Cohesive Soil under Impact and Its Influencing Factors）
粘性土壤 冲击破碎 破碎体分形维数
2009/5/22
给出冲击破碎分析的两倍尺度控制约定,研究粘结态土壤破碎体生成的影响因素，建立了土壤破碎体分形维数与落锤质量、冲击行程、土壤含水率、破碎比能之间的关系。结果表明，土壤破碎体的分形维数与落锤质量及冲击行程没有联系，但分形维数与土壤含水率及破碎比能具有明显的相关性。另外，通过比较得知土壤在冲击作用下的破碎体分形维数远远低于植被土样的分形维数。
The Elemental Contents and Fractal Dimensions of PM2.5 in Taipei City
PM2.5 Elemental Contents
2016/3/31
The Elemental Contents and Fractal Dimensions of PM2.5 in Taipei City。
Comparison of Techniques for Determining the Fractal Dimensions of Clay Minerals
Adsorption Clay Fractal NMR Small-angle x-ray scattering
2011/12/27
Small-angle X-ray scattering (SAXS), adsorption and nuclear magnetic resonance (NMR) techniques were used to determine the fractal dimensions (D) of 3 natural reference clays: 1) a kaolinite (KGa-2); ...