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42种阔叶树材木纤维长度和宽度的研究 被引量:8
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作者 黄日明 陈承德 《闽西职业技术学院学报》 2014年第4期97-102,共6页
对42种阔叶树材木纤维的长度和宽度进行了测定。结果表明,纤维最短的是芒果(842μm),最长的为木棉(2258μm);宽度最小的是相思树(15μm),最大是拟赤杨(44μm);纤维长宽比值,最低是泡桐仅为31,最高是木棉83。天然野生的酸枣和杜英与人工... 对42种阔叶树材木纤维的长度和宽度进行了测定。结果表明,纤维最短的是芒果(842μm),最长的为木棉(2258μm);宽度最小的是相思树(15μm),最大是拟赤杨(44μm);纤维长宽比值,最低是泡桐仅为31,最高是木棉83。天然野生的酸枣和杜英与人工栽培的对比,二者的纤维长度均存在极显著差异,酸枣纤维宽度差异不显著,杜英差异显著。盆架木的纤维长度和宽度,集美产的和龙岩产的对比均存在显著差异,银桦和芒果纤维长度和宽度不同产地之间均无显著差异。 展开更多
关键词 阔叶树材 纤维 纤维长度 木纤维宽度 长宽比
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Computer Simulation of Fiber Length and Width Distribution for Two Poplar Woods 被引量:2
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作者 ZHANGDongmei HOUZhuqiang GUANNing 《Chinese Forestry Science and Technology》 2004年第2期49-54,共6页
Computer simulation was carried out on fiber length and width for plantation-grown Chinesewhite poplar (Populus tomentosa Carr. clone) and plantation-grown poplar I-72 (P. x eurumericana (Dode)Guiner cv.). Skewness an... Computer simulation was carried out on fiber length and width for plantation-grown Chinesewhite poplar (Populus tomentosa Carr. clone) and plantation-grown poplar I-72 (P. x eurumericana (Dode)Guiner cv.). Skewness and kurtosis of measured results exhibited that distributions of the fiber length andwidth departured from normal distribution. Three-parameter Weibull density function was used in thisinvestigation and the corresponding program was written with Turbo C. The results showed that profiles ofsimulated length and width histograms were similar to ones of measured histograms, and that there was apretty good agreement between simulated and measured means of fiber length and width. There was a littleinfluence on the simulated means from seed used in random number generator and number of simulatedvariables. That indicated that the simulation was steady when the seed and the number were altered. Differenthistograms can be obtained with different values of the location, the shape, and the scale parameter correspondingto different values of the minimum, the mean, and the standard deviation for fiber length and width. Thesimulation presented here can be used as a tool for the studies on the variations in fiber morphology. 展开更多
关键词 poplar wood FIBER sampling simulation Weibull distribution SKEWNESS KURTOSIS
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