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Morphological Measurement and Evaluation of Wood and Wooden Raw Materials

木材及木质原料的形态测量与评价

基本信息

批准号：
02302080
负责人：
SADOH Takeshi
金额：
$ 3.39万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02302080/
关键词：
Wood Image analysis Morphology Particleboard Knot Evaluation of property Wood tissue Wooden raw material

项目摘要

The research has been undertaken to analyze quantitatively the shape, dimension, and arrangement of wood structure from macro- to micro-feature by use of various image analyzing methods.1. Analyses of naked eye visible objects : (1) Quantitative analysis of shapes of round wood in order to decide the most suitable sawing pattern for getting largest yield. (2) Recognizing knots appearing on conifer lumbers by use of color images and/or temperature distribution images after heating lumber surface depending on species. (3) Quantitative analysis of grain arrangement and texture appearing on wooden panels used in interior space in connection with the psychological responses.2. Analyses of microscopically visible elements : (1) Quantitative analysis of arrangement of wood tissues by Fourier transformation and autocorrelation methods. (2) Tri-dimensional analysis of fracture surfaces of wood cell walls by use of SEM. (3) Morphological analysis on distribution of chemical components of cell material by use of UV-microscopic image analysis ; morphological analysis of cellulose microfibril.3. Relations between tissue morphology and wood properties : (1) Influence of wood tissues morphology on ultrasonic transmission and decrement in wood. (2) morphological variations of tissues around knot and the effect on cutting resistances.4. Wooden raw materials in morphological aspects : Effects of particle geometry, fiber shape and fiber configuration on the properties of particleboards.

本研究利用各种图像分析方法，从宏观到微观对木材结构的形状、尺寸、排列等进行了定量分析.肉眼可见物分析：（1）定量分析圆木形状，以确定最佳锯切方式，获得最大产量。(2)利用彩色图像和/或加热木材表面后的温度分布图像识别针叶树木材上出现的节疤。(3)定量分析室内空间使用的木质板材的纹理排列和纹理与心理反应的关系.显微可见元素分析：（1）用傅立叶变换和自相关法定量分析木材组织的排列。(2)木材细胞壁断裂面的扫描电镜三维分析。(3)利用紫外显微图像分析对细胞材料化学成分分布进行形态分析;纤维素微纤维形态分析。3.木材组织形态与木材性质的关系：（1）木材组织形态对超声波在木材中传播和衰减的影响。(2)节子周围组织的形态变化及其对切割阻力的影响.木材原材料的形态：颗粒几何形状、纤维形状和纤维配置对刨花板性能的影响。