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木材宏、微观细胞堆砌构造图案的分形表征

宋莎莎 赵广杰

北京林业大学学报2011,Vol.33Issue(4):102-106,5.
北京林业大学学报2011,Vol.33Issue(4):102-106,5.

木材宏、微观细胞堆砌构造图案的分形表征

Fractal characteristics of macroscopic and microscopic cell-piled structure patterns of wood

宋莎莎 1赵广杰1

作者信息

  • 1. 北京林业大学材料科学与技术学院,北京100083
  • 折叠

摘要

Abstract

In the paper, we aim to provide a quantitative description of apparent characteristics of the maeroscopic and microscopic cell-piled structure patterns of wood and acquire further information relating to wood structure, which cannot he described quantitatively. Based on the fractal analysis of differential box-counting dimension on macroscopic tangential section and microscopic tri-sectiona] structure photos of 18 species of' wood in northeast China, results show that: 1 ) macroscopic structural texture and microscopic structural patterns of the cell-piled wood both have fractal features, and they have ve~3~ good characteristics of macroscopic and microscopic structural texture and patterns of roughness and order; 2) compared with softwood, the macroscopic tangential section and microscopic tri-sectional patterns of hardwood have higher fractal dimensions, which shows that macroscopic and microscopic cell-piled structure patterns of hardwood are more rough and its order is more complicated; 3) the general rule for the microseopic tri-sectional structure pattern of fractal dimension of softwood and hardwood trees is : transverse section 〉 tangential section 〉 radial section; 4) when some types of cells are substituted, the existence of resin, vessels and wood parenchyma can influence the fl'actal dimension changes of the microscopic structural patterns of wood to various degrees.

关键词

木材宏观构造/木材微观构造/纹理/刚案/分形特征

Key words

macroscopic structure of wood/microscopic structure of wood/texture/pattern/traetalcharacteristics

分类

农业科技

引用本文复制引用

宋莎莎,赵广杰..木材宏、微观细胞堆砌构造图案的分形表征[J].北京林业大学学报,2011,33(4):102-106,5.

基金项目

圈家自然科学基金项目(30871967). ()

北京林业大学学报

OA北大核心CSCDCSTPCD

1000-1522

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