CAJ | 학술논문

经过若干世纪的选择进化,生物功能陶瓷牦牛胫骨的细观结构高度优化.通过SEM方法观测牦牛胫骨断面的微观形貌,发现多孔形态特征非常明显.对SEM图像进行数字化处理,实现具有较高灰度级分辨率的计算机视觉,借助MATLAB编程统计出孔的个数524,通过计算孔像素面积与骨断面的像素面积之比获得孔隙率0.063.分析获得牦牛胫骨的孔径随着水平级别的变化规律曲线,曲线趋向并收敛于0.获得孔径随个数的变化规律曲线,对其曲线进行多项式拟合获得了9阶函数表达式,描述了牦牛胫骨多级微孔分布的内在规律.
경과약간세기적선택진화,생물공능도자모우경골적세관결구고도우화.통과SEM방법관측모우경골단면적미관형모,발현다공형태특정비상명현.대SEM도상진행수자화처리,실현구유교고회도급분변솔적계산궤시각,차조MATLAB편정통계출공적개수524,통과계산공상소면적여골단면적상소면적지비획득공극솔0.063.분석획득모우경골적공경수착수평급별적변화규률곡선,곡선추향병수렴우0.획득공경수개수적변화규률곡선,대기곡선진행다항식의합획득료9계함수표체식,묘술료모우경골다급미공분포적내재규률.
Through untold centuries of evolutionary development,a function bioceramic,yak tibia,has become a highly optimized structure suited to a variety of demanding duties.In this study,the cross-section's porous morphology of yak tibia was observed by SEM.The image processing for higher gray-scale resolution was used to identify the porosity and other structure characteristics.By a MATLAB program the porous number was counted as 524,and the porosity defined as the ratio of porous pixel area to cross-section area was computed as 0.063.It was found that the porous radius varies along with level rank and the curve weakens near to zero.A 9th-order polynomial expression was fitted from the varying curve of porous radius along with number,which characterizes the multilevel microporous distribution of yak tibia.