多孔的

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,代写医学论文,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文对冷冲压技术的分类、特点及发展方向作了简略概述；论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理；对典型的冲压件模具入行了设计：大直径三通管冲压复合模设计盖世了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。

Results showed that the topsoil structure of the CK treatment was dense with little porosity developed, and the soil microstructure was sandy granular fabric - granular fabric. In these treatments using chemical fertilizers only, the soil particles did not form soil structure with little porosity, and the soil microstructures in the N, NP or NPK treatment were observed as prophyropectic fabric-fine sand agglomerplasmic fabric, much better than the CK treatment. In those treatments receiving farm manure alone or farm manure plus chemical fertilizers, the quantity of groundmass increased obviously. The soil had a loosen structure, higher porosity, enriched animal and plant residua, iron-manganese nodules and humus, and more micro-aggregates developed. The soil microstructure of the MNPK treatment was pectized-compacted takyric fabric-intertextic fabric, the best microstructure observed among all the treatments.

结果表明：长期不施肥料的CK处理，土壤耕层结构致密，很少有孔隙发育，土壤微结构为结构较差的碎屑聚积状-沙粒聚积状；长期单施化学肥料，土壤颗粒未形成结构体，少孔隙，土壤微结构主要为斑晶胶凝状－细沙粒聚积状结构，土壤结构比CK处理优；长期施用有机肥或有机无机肥料配施的处理，土壤粗颗粒数量显著增加，结构疏松，孔隙量大，动、植物残体丰富，有铁锰结核和腐殖质的形成和微团聚体的发育，土壤微结构类型以MNPK处理最好，为胶凝紧实状－多孔状结构。

It tries its best to avoid using the finite difference grid, so that it can eliminate the artificial dispersion which arises from the injudiciously finite difference grid.

第四章提出了一种交替方向区域对分的FCM，用于模拟二维多孔介质中的生物降解过程，它试图尽可能的避开使用有限差分网格，从而消除由于网格选取的不合适而导致的人工弥散现象。

Separator/polymer electrolyte system was obtained by activation.How the aggregation structure and porous structure influence ionic conductivity and electrolyte uptake were investigated.

发现在一定条件下制备的多孔膜具有比较好的力学性能以及贯通性良好的孔结构，基于这种膜活化得到的体系，电导率超过1.0×10-3S/cm(20℃)、电化学稳定窗口为0～4.7 V，电导率与温度的关系符合阿仑尼乌斯方程。

These features of LBM have been attracting many scientists and engineers from various of fields. To date, the applications of LBM have achieved great success in multiphase flow, porous flow, suspending particle flow, reaction flow, magnetohydrodynamics, and biomechnology, etc, and the LBM has become an important method for computer simulation of fluid dynamics.

LBM的这些特点吸引了众多领域中的学者和工程技术人员，目前LBM已经在多相流、多孔介质流、悬浮粒子流、反应流、磁流体力学和生物力学等领域取得了很大的成功，已成为流体动力学问题仿真模拟的一类重要的方法。

The approaches,by which conducting polypyrrole could be electrodeposited on the surface of tantalun/tantalum pentoxide-based anode(1 microfarad, 16V), have been studied. The galvanostatically polymerized polypyrrole is used for the cathodes of tantalum electrolytic capacitors. Particularly, the influence of electropolymerization conditions, such assupporting electrolyte solution composition, anodic current value and applied mode, on the capacitance and dissipation factor of as-made capacitor has been discussed.

摘 要：研究了导电聚吡咯在多孔Ta／Ta2O5阳极体1μF/16V）表面的制备方法，采用恒电流电聚合法在该阳极体表面沉积一层导电聚吡咯作为电解电容器的阴极，着重探讨了支撑电解液的组成、阳极电流的大小及其施加方式对所形成的电容器容量和损耗因子的影响。

The results show that the addition of surfactant shortens induction time and improves formation rate and volumetric proportion, and the volumetric proportion of synthetic hydrate samples can amount to 136~150; the existence of porous medium delays hydrate formation exiguously; the influence of memory effect on gas hydrate formation is notable, the induction time could be shortened by 10~20 times for the experimental system containing residual pentahedral ring structure.

结果表明：表面活性剂的加入缩短了水合物生成诱导时间，提高了生成速度和含气率，合成的水合物样品含气率达到136~150；多孔介质的存在对水合物的生成有较小的延缓；记忆效应对瓦斯水合物生成影响显著，在拥有水合物分解残余五面体环等结构的实验体系中，水合物生成诱导时间缩短10~20倍。

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 Scandia doped tungsten powders were made by both liquid-solid doping method and liquid-liquid doping method on the basis of previous researches. The study shows that on the basis of improving pressing and sintering process, we can obtain sub-micron porous bodies with proper porosities.

研究表明在改进压制、烧结技术的基础上，可以获得具有适当孔度的亚微米结构多孔基体，氧化钪在基体中的分布得到进一步改善，在这种基体中铝酸盐的浸渍率可以达到常规浸渍阴极的要求。

The conclusions can be drawn as the following:(1) According to the theoretical calculation, the porous C/C preforms with uniform pores radius from 10 μ m to 1300 μ m are beneficial to infiltration of liquid silicon. The growth of SiC was controlled by the self-diffusion of carbon atoms.

研究结果表明：(1)根据理论计算可知，在10μm～1300μm的孔径范围内，具有均一孔径的多孔体有利于液Si的渗入，SiC的生长为C原子的自扩散控制。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。