其纤维

A device and method for preparing compound nano fiber endless tow, which contains feeding material liquid to pair of electric spinning nozzle on frame, each nozzle respectively applied with high dc voltage with opposite polarity, each pair of nozzle jetting out nano fiber with opposite electric charge, said nano fiber attracting and colliding each other to form compound nano fiber, then forming nano fiber endless tow after drawing and stretching, the first opposite set pair of electric spinning nozzle jetted compound nano fiber endless tow is stretched down and used as acceptor which covered by the nano fiber jetted by second pair of nozzle an d forming two layers of compound nano fiber endless tow after drawing and stretching, in turn to get multilayer compound nano fiber endless tow after drawing and stretching by godet roller.

复合纳米纤维长丝束制备装置及其制备方法是一种简单、高效电纺制备纳米纤维长丝束的方法，其步骤为将料液输送给支架(3)上的电纺喷头对(1)；喷口相向的电纺喷头对(1)的每个喷头分别施加相反极性的直流高电压；每对相向喷口喷出分别带相反电荷的纳米纤维，并在空中相互吸引、碰撞形成复合纳米纤维，经牵引、拉伸后形成复合纳米纤维长丝束；第一对相向放置的电纺喷头纺丝形成的复合纳米纤维长丝束向下拉伸，并作为接受体与第二对电纺喷头喷出的分别带相反电荷并相互吸引的纳米纤维在空中相遇，被第二对电纺喷头喷出的纳米纤维包裹，经牵引、拉伸后形成两层复合纳米纤维长丝束；依次类推，最后经导丝辊对(2)牵引、拉伸后得到多层复合纳米纤维长丝束。

The microstructure of the scaffold was observed under photomicroscope and scanning electron microscopy,and the in vitro degradation time,permeability,tensile-strength,porosity,shrinka...

实验结果显示：支架中的成纤维细胞、脂肪细胞及组织纤维间质完全去除，胶原纤维得到了松散，并维持其原有的天然三维网络多孔结构；该材料透水汽性处于3000g.m-2.d-1左右，适合创面恢复；体外降解时间处于25～50h之间，并可根据需要调整工艺条件控制降解时间；拉伸强度介于10.20～11.50MPa之间，具有良好的拉伸强度；收缩温度介于70～85℃之间。上述结果表明该材料已解决了猪脱细胞真皮基质渗透性差、降解速度过慢的缺点，并且其透气性和拉伸强度高、降解性优良且可控，符合组织工程支架材料的要求。

The results showed that the fiber had the function of absorbing toluene and trichloroethylene after introducing HEMA into macromolecules, and the absorptive process obeyed Hill equation of sigmoidal model.Toluene and trichloroethylene absorbency increased with the increase of mass fraction of HEMA,and their maximum absorbency was 10 g/g and 21 g/g,respectively.The ratio of remaining fiber also increased with the increase of mass fraction of HEMA to make organic liquid retention ratio strengthen.Furthermore,dynamic mechanical performance of the fiber was affected by mass fraction of HEMA obviously, and the segments movement was influenced more obviously.At the same time,mass fraction of HEMA had a great impact on the surface and cross section morphologies,especially,many cavities existed in surface, and cross section had a lot of holes with asymmetric size when mass fraction of HEMA was equal to 15 wt%.

结果表明，HEMA引入大分子后，所得纤维对有机液体甲苯、三氯乙烯具有吸附功能，且吸附过程符合sigmoidal模型中的Hill方程；随HEMA质量分数的增加，纤维对甲苯和三氯乙烯的饱和吸附量增大，对甲苯和三氯乙烯的最大吸附量分别可达10 g/g和21 g/g；随HEMA质量分数的增加，纤维剩余率增加的同时，使纤维对甲苯和三氯乙烯的握持能力增强；HEMA质量分数对纤维动态力学性能有突出影响，特别是链段运动受其影响更为明显；HEMA质量分数对纤维表面和断面形貌均有显著影响，特别是当HEMA质量分数为15 wt%时，所得纤维表面出现了许多空洞，其断面存在许多尺寸不均的空洞。

The calculative results show that the efficient thermal conductivity rises as temperature rises under a constant fiber volume fraction, and it is proportional to the third power of absolute temperature; it decreases as fiber volume fraction increases under high temperature; it increases as fiber volume fraction increases under low temperature, and it is in agreement with that is described in the literature.

此式计算结果表明：在纤维体积分率一定时，其有效导热系数随温度的升高而升高，且它是绝对温度的三次方关系；在高温条件下，其有效导热系数随纤维体积分率的升高而四川大学硕土学位论文有减少趋势；在低温条件下，其有效导热系数随纤维体积分率的增大而增大，与所查文献描述规律一致。

Hepatic chymase concentrations in S3 and S4 cases were greater than in S1 and S2,〔53+54=(31.3±24.6)ng/mg vs. S1+S2=(5.7±4.8) ng/mg, P.01〕. Cells immunoreactive for chymase were seen throughout portal areas and intralobular sinusoidal walls, largely colocalizing with fibrosis. Chymase appears to be involved in hepatic fibrosis in chronic hepatitis.

慢性肝炎纤维化分期重的S3和S4患者，其肝组织中Chymase浓度〔S3+S4=(31.3±24.6)ng/mg〕明显高于纤维化轻的S1和S2患者〔S1+S2=(5.7±4.8)ng/mg〕，P.01；免疫组化染色结果，Chymase标记的肥大细胞主要分布于纤维化旺盛的汇管区与类洞壁，其分布与纤维化部位相一致，且肝组织中Chymase浓度高的患者，其肝组织内Chymase标记的肥大细胞分布增多推测肝组织中Chymase浓度可能与慢性肝炎肝纤维化关系密切。

The details of the research include: By studying the structure of the natural bamboo fiber, make the basic morphological structure and the degree of crystallization clear; By studying the mechanical property of the fiber, make the feature of mechanical property of the natural bamboo fiber clear; By studying the mechanical property of the pure yarn and its blends, make the feature of mechanical property of the yarn clear; and we also study the mechanical property changes of the pure yarn and its blends in the hygrometric state different temperature state and after mercerization and alkali shrinkage.

研究内容包括：通过对天然竹原纤维结构的研究，探明竹原纤维的基本形态特征和结晶度等特征；通过对天然竹原纤维机械性能的研究，探明竹原纤维的力学性能特点；通过对竹原纤维纯纺、混纺纱线力学性能研究，探明其纱线的力学性能特点；研究在湿态条件下，竹原纤维纯纺、混纺纱线力学性能的变化特点；研究在不同温度条件下，竹原纤维纯纺、混纺纱线力学性能的变化特点；研究在丝光、碱缩条件下，竹原纤维纯纺、混纺纱线力学性能的变化特点。

Materials and methods: The lung preparation of 6 SARS death patient (died in 9,14,20,29,33,38d) and 6 macaque model (killed in 7,12,14,14, 32, 35d)were objects. Pathological changes, collagen fibers, lattice fibers, elastic fibers, collagen I and III in lungs and fine structure changes were studied by routine H.E dyeing, trigeminy dyeing, trinitrophenol- sirius red staining and polarization microscope, electron microscope and image analysis. Expression of Vimentin、 TGFβ_1、 TNF α、 IL-1β and MMP-2 were detected by immunohistochemistry.Results:1. Pathological changes of SARS death patient.

材料与方法：以6例SARS死亡患者(分别于发病后9、14、20、29、33、38d死亡)和6只猕猴实验模型(分别于染毒后7、12、14、14、32、35d活杀取材)肺标本为对象，应用H.E染色、三联染色、苦味酸-天狼猩红-偏振光法、电镜和图像分析等技术，对比性观察SARS肺组织病理变化和纤维化的病理过程、胶原纤维、网状纤维和弹力纤维的变化特点、Ⅰ型与Ⅲ型胶原纤维的数量和分布规律，旨在探讨SARS肺纤维化的病变经历过程及特点；利用免疫组织化学和形态计量学技术检测SARS死亡患者肺脏的Vimentin、TGFβ_1、TNFα、IL-1β和MMP-2等与炎症反应和纤维化相关活性因子，探讨其发病机制。

A combined massaging and brushing tool comprising a main body having a plurality of convexes neatly arranged on a surface thereof, a cutting line positioned suitably away from an end edge thereof and extending in both directions along said end edge wherein an opening is formed by removing said body along said cutting line, a plurality of cutting lines suitably spaced and disposed in the proximity of another end edge thereof and respectively extending downwardly from a location in the proximity of the center wherein a set of enclosures are formed by removing said body along said cutting lines.

一般而言，长纤维是指纤维之长度/厚度之比率大于10%者称之。而在化学纤维当中，所有可纺丝之原料，皆可制成长纤维。长纤维因其每束丝中各单纤维根数与细度又可分为复丝与单丝，通常用于衣着类长纤维大都为复丝，而单丝则大都在非衣着用途，如钓鱼线等，其单纤维直径为60μ以上，甚至可达5 mm。

Stockings in through immediately after washing, cleaning, when to use mild soapy water so that stockings first dip for a while, use a mild soap or shampoo neutral in the Cuoxi pat hand in warm water (water temperature does not exceed 30 degrees), Or a net Xi Yijing bubble (do not have the chlorine bleach or Xiyi Jing), when drying with a towel over the water Xidiao, very sensitive to sunlight, as long as the sun was directly to the drying of their fatigue on the large elastic fiber A discount, and then to peg arm socks dry mouth, not in the sun or other non-smooth bamboo drying rack, easy to hook wire.

丝袜在穿过之后要立刻清洗，清洗时要用温和的肥皂水让丝袜先浸一会儿，使用温和中性肥皂或洗发精在温水中用手轻拍搓洗(不超过水温30度)、或洗衣精净泡(不要有含氯的洗衣精或漂白水)，晾晒时用毛巾将过多的水分吸掉，最忌太阳光，只要被太阳直接晒到其纤维弹性疲乏就大打折扣了，然后以衣夹夹着袜口晾干，千万不要晒在竹竿或其它不平滑的晒架上，容易勾丝。

Kraft process: Chemical method for producing wood pulp using caustic soda and sodium sulfide as the liquor in which the pulp wood is cooked to loosen the fibres.

硫酸盐制浆法：生产木浆的一种化学方法，用苛性钠和硫酸钠作为溶液，把纸浆原料放在里面煮，使其纤维松释。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。