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Result: in control group, crude fibers, small fibers and microfilament of collagen fibers can be seen, and the cardiac muscle architectonic is integrated.

结果:正常组胶原纤维的形态分为粗纤维、细纤维和微细纤维三种;心肌结构完整。

The quasi linear dependence of Raman shift upon fiber strain was first used to measure the residual thermal strain along the fiber axis.Then the same dependence was used to determine the fiber strain during pull-out test.Finally the distribution of striain along the fiber axis was converted to the distribution of interfacial shear stress.

利用纤维拉曼峰波数偏移与纤维所受应变的近似线性关系,首先测定纤维热残余应变的分布,随后对伸出玻璃基体外的纤维段施加给定的拉伸应变,沿纤维轴向用拉曼光谱术逐点测定基体内外纤维的应变,最后依据力平衡原理将应变分布转换为界面剪切应力沿纤维轴向的分布。

In this paper, chemistry composition, fiber morphology and pulping property in Solidago canadensis were analyzed and determined preliminarily. The results showed that the content of holocellulose was 81.86%, the content of cellulose was 42.63%, the content of lignin was 18.86%, it is feasible for using Solidago canadensis pulping based on it's chemical composition. The ratio of fiber length to width in Solidago canadensis was 36.67, the average length of fiber was 440 μm, and the length of fiber was too short to pulping. The ratio of wall thickness of fiber cell to lumen diameter was 0.34, and it was smaller than that of other woody fiber. In this experiment, four different methods of pulping were as follows: kraft-AQ pulping Ⅰ, kraft-AQ pulping Ⅱ, alkaline pulping, alkaline sulfite adding AQ pulping, but it was difficult for lignin removal in Solidago canadensis.

通过对一枝黄花的化学组成、纤维形态以及制浆性能进行初步探索,结果表明:(1)加拿大一枝黄花的综纤维素含量为81.86%,硝酸乙醇纤维素含量42.63%,木素含量18.86%,由化学组成看,加拿大一枝黄花是比较适宜制浆造纸的;(2)加拿大一枝黄花纤维的长宽比为36.67,纤维平均长度为44μm,从纤维长度来看,加拿大一枝黄花的纤维较短,不适宜制浆,其纤维壁腔比0.34,和其它速生材相比较小;(3)采用4种碱法制浆方案,硫酸盐蒽醌法Ⅰ,硫酸盐蒽醌法Ⅱ、烧碱法、碱性亚钠+蒽醌法,结果显示,加拿大一枝黄花的木素非常难脱除。

SUMMARY OF BACKGROUND DATA : The use of quantitatie sensory testing can detect damage to the myelinated A-delta fibers and the unmyelinated C-fibers.

背景资料摘要:应用定量感觉试验可以检测对有髓纤维Aδ纤维和无髓纤维C纤维的损害。

The formation mechanism of the hollow and helical fibers was proposed. During the heat treatment, the hollow fibers could be formed when the inner gel of the thinner precursor fibers was separated from the center and contracted to surface. However, the helical fibers could be generated when larger gel fibers were broken helically under thermal stress in the process of gel decomposing and contracting.

分析了中空纤维和螺旋纤维的形成机理,直径较小的前驱体纤维在热处理过程中内部凝胶向表层迁移收缩形成中空纤维;螺旋纤维是由直径较大的前驱体纤维在热处理过程中产生的强大的热应力导致纤维产生螺旋破裂形成的。

In order to modify the recycled fiber, this study was to investigate the variations of the fiber and paper properties after paper recycling, reusing, and re-processing. Three methods for upgrading the recycled fiber, included alkali socking, enzyme treatment, and adding carboxymethyl cellulose to enhance the fiber strength, extend the fiber service life, and reduce the use of the virgin pulp.

中文摘要本论文探讨纸张的回收-利用-再生过程中纤维性质及纸张性质的变化,以做为后续纤维及纸张性质的改良,并分别继续使用碱处理、酵素处理及添加CMC的方法将再生后纤维改质,以期达到增强或改善纸张性质,进而提高再生纤维的使用范围、延长纤维的使用时间绵续纤维之生命周期与减少利用原生纸浆之多项目的。

The main factors that can affect the strength of base PAN fiber and how its hydrolysis reaction happened in alkaline conditions were discussed.

应用红外光谱仪、元素分析仪、比表面分析仪等对基体聚丙烯腈纤维及其部分水解PAN-COOH型离子交换纤维进行了表征,讨论了影响基体PAN纤维强度的主要因素和碱性条件下的水解反应获得了干态水解PAN纤维的性能指标:强度8.3 cN/dtex,交换容量0.26 mmol/g , BET比表面积为0.58平方公尺/g的PAN-COOH型离子交换纤维,并较为详细地讨论了该纤维氰基转化成羧基的比率,羧基在纤维表面的排列及最大水解量。

The experiment results showed that the rigidity of the composite inchlorinatedcis-1, 4-polybutadieneeased as the content of the fiber inchlorinatedcis-1, 4-polybutadieneeased, and the tear strength, the modulus at 20% in L directionalso inchlorinated cis-1, 4-polybutadieneeased; thereinto, the reinforcement effect ofnylon short fiber was the best, and the cotton powder short fiber was the worst.

结果表明,短纤维氯化顺丁橡胶复合材料随纤维含量的增加,硬度不断增大,在L向拉伸时,撕裂强度、定伸应力提高,尼龙短纤维的补强效果最好,棉粉短纤维的最差;随纤维含量增加,短纤维氯化顺丁橡胶复合材料整体耐热老化性得到了极大改善,短纤维-氯化顺丁橡胶复合材料的性能呈现明显的各向异性。

There are different types of model available.17,18 For ionic dye-fibre systems, such as cellulosics, polyamide or acrylic dyeing, they are all based on the concept that the amount of dye sorbed by the fibre depends on electrostatic interactions and the dye's affinity for the substrate.

现有很多种类的模型,用阴离子染料染色的纤维,例如纤维素纤维,尼龙或丙烯酸纤维,这些纤维染色时,染料的上染率取决于染料和纤维的静电作用,以及染料对纤维的亲和力。

Sample 1 had no phenomenon of pulling-out and debonding of fibres under vertical compression load and the interface bonding intensity is strong between the fibres and the matrix. The material shows brittle fracture: if σ(subscript ⊥)=60.7MPa. However, sample 1 has the phenomenon of fibres debonding because of the shearing stress between the fibres and the matrix under parallel compression load. The material shows tough fracture:σ(subscript ∥)=52.6 MPa.

试样l在垂直纤维层方向压缩载荷作用下,没有出现纤维的拔出、脱粘等现象,界面结合较强,材料呈现脆性断裂:σ=60.7MPa;而在平行纤维层的压缩载荷作用下,纤维与基体存在剪切作用,存在纤维的脱粘,试样呈现韧性断裂:σ=52.6MPa。

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