纤维形成

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。

Antibodies against col Ⅲ reacted strongly in the entire pterygial stroma. Conclusions Components of ECM are changed in the pterygium: the sub-epithelial connective tissues and vessels are more prominent in the pterygia than in normal conjunctiva tissues, and abnormal fibers are visible only in the deeper subepithelial connective tissues. This study documents the overexpression of LN and col Ⅲ. They may play roles in cellular adherency, migration and angiogenesis. Also this study documents the overexpression of MMP3 which may degrade ECM in the pathogenesis of the pterygium.

结论翼状胬肉组织中ECM的成分较正常球结膜发生改变，有大量的弹性纤维变性、胶原纤维增生及新生血管形成；col Ⅲ在翼状胬肉组织中表达增加，LN及胶原纤维可能对翼状胬肉中血管形成、细胞粘附和迁移及ECM重建起作用；MMP-3在翼状胬肉组织中表达增加，其对ECM成分的降解作用可能有助于翼状胬肉的形成和向角膜中央侵袭。

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。

Based on traditional wood fiber processing way at home and abroad, this paper draws up mathematical description theory of wood fiber, finishes the mathematical description theory of single wood fiber, sum up the reason of low density of wood fiber at microcosmos state, completed the laboratory study on Micron Flake Fiber High Strength Board, set up the forming methodology of this kind of wood-based panel.

本文在总结国内外传统法木纤维加工的基础上提出了木纤维数学描述理论，进行了单个木纤维细胞的数学描述，总结了现在木纤维强度低的微观原因，完成了微米长薄片木纤维高强度人造板的实验室研究，创立了该板种的形成方法学，所提出的MFB形成理论体系和加工方式，是利用木材微纳米技术在人造板加工业中开创出的一片新研究领域，提出了微米纤维细胞劈裂的条件。

Scanning electron microscopy,transmission electron microscopy,circular dichroism and small-angle X-ray diffraction were used to analyze the aggregation mode of CSG in the organogel phase.A hierarchical self-assembly model was proposed to explain the transition from molecular to primary and secondary structure.It is shown from our results that CSG can aggregate into a micellar fibril nanostructure with high length-to-width ratio which is bundled and entangled to form a three-dimensional(3D) network that immobilize the fluid component probably by surface tension.Moreover,sol-gel polymerization of tetraethoxysilane was carried out using CSG in the gel phase.

通过扫描电镜(ScanningElectron Microscopy，SEM)、透射电镜(Transmission Electron Microscopy，TEM)、圆二色谱(Circular Dichroism，CD)和小角X—射线衍射仪(Small-angle X-rayDiffraction，SAXRD)考察CSG分子自组装行为结果表明，CSG形成的聚集体具有多级结构：首先CSG通过手性堆叠自组装形成直径在9—10nm的细纳米纤维，这些细的纳米纤维再以不规则的六方堆积的方式进行排列，构成直径在40—100nm的粗纳米纤维(即细纳米纤维的&捆束&)，最后粗纳米纤维互相粘连形成三维网络状结构，使有机溶剂&固定&，从而形成凝胶；以CSG有机凝胶为模板，四乙氧基硅烷为前体，通过溶胶—凝胶聚合的方法制备了直径大约为100nm的二氧化硅纳米管。3。

Caruncles are often waxy or oily.

种阜通常是蜡状或油状的，由胎座，珠孔，或纤维形成。

In fact, their incubation in a free cell system gives a stable dimerized form of alpha-synuclein that has been described as the critical rate-limiting step for its abnormal fibrillation.

事实上，他们在一个游离细胞系统培育产生一个稳定的Α-synuclein二聚物形式，已经被描述作为异常原纤维形成的关键限速步骤。

In the SMC of the normal rabbits, myofilaments and macula densa were abundant, few mitochondrla and endoplasmic reticulums were found around the nuclear, and the SMC was in the contractive stage. In the SMC of the model rabbits, few myofilaments and macula densa were found, rough surfaced endoplasmic reticulums and mitochondria were abundant, some phagocytosed much lipid and became foam cells, the SMC was in the synthetic stage.

实验12周，高脂组家兔主动脉斑块面积百分比为47.69±12.84％，内膜斑块厚度为0.68±0.08mm，内膜斑块横断面积与中膜面积比值为1.28±0.35；内膜脂质斑块弥漫且较厚，有大量的泡沫细胞堆积，可达8～10层，管腔直径变小，内膜不光滑；泡沫细胞内富含脂滴，呈椭圆形气球样，有的斑块中可见显著的平滑肌细胞增生及大量的弹力纤维形成。

It was demonstrated that the actin could be polymerized into discrete filaments of tree-like branch structure, random coil filaments cluster and long filaments with different diameters in F-buffer besides random aggregates. These polymerized filaments clearly exhibited the structural polymorphism and showed obvious difference from those assembled under the regulation by actin binding proteins or phalloidin.

研究发现，actin在体外通过自装配过程除了形成无序的蛋白堆积物之外，还能够聚合形成复杂的离散结构，包括树状分支的纤维丛、无规卷曲的纤维簇以及具有不同直径的长纤维等；这些大尺度纤维复合物明显不同于在ABPs或过量F-actin稳定剂参与下形成的由单根微丝和微丝束构成的聚合结构。

For many years, ranking among the world's leading producers of redispersible polymer powders and functional additives, we support our customers for solutions in self-levelling compound, eifs, ceramic tiles adhesives, repairing mortar, plaster, skim coat and water-proof materials etc.

chst赫斯特可再分散胶粉部门），并且同cff泰来丝木质纤维形成战略伙伴关系，从而进一步加强了我们对干拌砂浆行业的系统服务能力。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。