权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Quantitative evaluation of vague structures in the biomaterials by the diffraction method and Fourier transform

利用衍射法和傅立叶变换定量评估生物材料中的模糊结构

基本信息

批准号：
09306010
负责人：
FUJITA Minoru
金额：
$ 21.31万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

Biomaterials are characterized in the structure vagueness, fluctuation in other word, and the fluctuation is very difficult to be estimated quantitatively. Therefore, woods, being the most valuable in biomaterial utilizations, are offered to the Fourier transform analysis to be evaluated on the viewpoints of cell arrangements, cell shape and cell wall thickness. Although some algae as the future bio-resources are investigated on their cellulose microfibril structure using electron diffraction method, the results are omitted in the report, and only the developing process for the Fourier Transform Image Analysis (FTIA) are described there, because the FTLA has been established in the precise quantitative level for the vague structures on the wood cells.The FTLA was composed of five steps, namely, (1)microscopic sampling procedures for wood cell structures, (2)pre-FFT procedures such as mappings for simplifying and extraction of objective structure, and also brightness control for the enclosing of power level after the FFT, (3)elucidation of actual FFT procedures, (4)post-FFT procedures such as the polar coordinate analysis, and (5)analyzing of spectrum and reconstructing procedures of wood cells. In all procedures, various errors were examined in detail and the experimental conditions are controlled being under 10%. In addition, many words and symbols relating the wood tissues and image processing were proposed and defined.In the above conditions adjusted, cell arrangement, cell shapes, and cell wall thickness in softwood tracheids were analyzed quantitatively and then fluctuation from the most provable value could be detected.

生物材料具有结构模糊性和波动性的特点，其波动性难以定量估计。因此，在生物材料利用中最有价值的木材，被提供给傅里叶变换分析，从细胞排列、细胞形状和细胞壁厚度的角度进行评价。虽然利用电子衍射法对一些作为未来生物资源的藻类的纤维素微纤维结构进行了研究，但由于傅里叶变换图像分析（FTIA）已经在精确的定量水平上对木细胞上的模糊结构建立起来，因此本文省略了结果，只描述了傅里叶变换图像分析（FTIA）的发展过程。FTLA由五个步骤组成，即(1)木材细胞结构的微观采样程序，(2)FFT前程序，如简化和提取物镜结构的映射，以及FFT后功率级的亮度控制，(3)FFT实际程序说明，(4)FFT后程序，如极坐标分析，(5)木材细胞的光谱分析和重建程序。在所有程序中，详细检查了各种误差，并将实验条件控制在10%以下。此外，提出并定义了许多与木材组织和图像处理相关的词汇和符号。在上述条件下，定量分析了软木管胞的细胞排列、细胞形状和细胞壁厚度，并从最可证明的值中检测出波动。