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Highly order ed porous anodic alumina template was prepared by twice anodic oxidation in acidulous electrolyte,and its morphology was observed by metallographic microscopy.

在酸性电解液中,用二次阳极氧化法制备得到了高度有序的多孔阳极氧化铝模板。

The sensor pipe is supported in the sealing body and is positively and/or adhesively retained between the edges of peripheral ends of a perforated sheet.

检测器管在多孔套管周界端部边沿之间保持成在密封体内的形状和/或材料-密闭状态。

Theoretical basis of thermodynamics on fluid phase balance is studied in this paper, and estimating rule of thermoelectrical equilibrium with interfacial phenomena is analyzed. Adsorption theoretical model is evaluated on the base of essential theory of adsorption.

本文研究了流体相平衡的热力学理论基础,并分析了存在界面现象时的热力学判据,研究了吸附的基本理论,选择了空穴溶液理论模型计算凝析气在多孔介质表面的吸附;应用晶格理论吸附模型计算凝析油在多孔介质表面的吸附;应用气相吸附数据计算二元液相吸附,作为应用晶格模型研究多元液相吸附的输入数据,并且首次考虑气液混合吸附,以凝析油的临界流动饱和度作为判断气液混合吸附还是单纯的液相吸附的条件。

The invention discloses a dielectric hole-microhole composite material and synthesizing method in the inorganic porous material, adsorbing material and catalytic material technical domain, which comprises the following steps: adopting zeolite molecular sieve as raw material; reacting with sodium bisilicate solution under 30-60 deg.c for 10-300 min; disintegrating particle part of zeolite molecular sieve into piece with microhole structure; adding cetyl trimethyl ammonium bromide as molder; adjusting pH value of mother liquid to 10-12; aging 1-8h; adding in the high-pressure autoclave to do water heat synthesizing reaction at 80-130 deg.c for 24-72h; separating solid; washing; drying; sintering under 500-600 deg.c for 5-10h; obtaining the Si-Al porous material with dielectric hole and microhole composite structure.

本发明属于无机多孔材料、吸附材料和催化材料技术领域,涉及具有介孔-微孔复合材料及其合成方法。其特征是以沸石分子筛为原料,用偏硅酸钠的水溶液在30~60℃反应10~300分钟,使沸石分子筛的颗粒部分解离形成具有微孔结构的碎片,加入模板剂十六烷基三甲基溴化铵,然后调节母液pH值为10~12,老化1~8小时,然后加入高压釜于80~130℃进行水热合成反应。反应24~72小时后,分离出固体,水洗、干燥,然后于500~600℃焙烧5~10小时,得到具有介孔和微孔复合结构的硅铝多孔材料。本发明的效果和益处是所发明的合成方法可用于合成多种沸石结构和介孔结构的复合材料,所合成的材料经过质子交换可以具有较强的酸性,在吸附和催化领域具有广泛应用前景。

We prepared the ordered porous alumina membrane by a two-step anodization method in oxalic or sulfuric acids, which is a self-ordered hexagonal array of cells with an adjustable pore diameter of 20-150nm and a different pore structures (i.e. Y-branched, dendriform, toothed and torous ones). Furthermore, the template-electrodeposition, vapor-catalytic growth, and controlled chemical etching were developed for well-aligned carbon nanotubes and oxide nanopillars with adjustable diameter, Al2O3-AlN one-dimensional heterojunction, Y-junction and dendriform metal nanowires, as well as Y-junction, and torous carbon nanotubes. The resultant one-dimensional junctions were characterized by XRD, SEM, TEM,HRTEM, and STM, and the field emission of the well-aligned carbon nanotubes and the luminescence of ZnO nanopillar array have also been mearsured.

完善和发展了阳极腐蚀法制备多孔氧化铝膜的方法,制备出了孔径在20-150nm之间可调和具有不同孔结构(如Y形、树枝状、锯齿状)的系列多孔氧化铝模板,在此基础上,利用电化学沉积、气相催化生长和化学控制腐蚀等方法,成功地生长出具有可调直径的碳纳米管和氧化物纳米柱有序阵列、Al2O3-AlN异质结纳米线、Y形和树枝状的金属纳米线以及Y形、藕节形和锯齿形的碳纳米管等多种一维结纳米材料及其阵列体系,探索了基于模板孔壁内沿生长一维结纳米材料的机制,较系统的研究了碳纳米管阵列的场发射性能和氧化锌纳米柱的发光性能,为低维纳米材料器件化提供了实验基础。

The results show that the perfect Honeycomb pattern films without defects within area of 0.8cm^2 can be obtained at the PS concentration ranges from 20 mg/mL to 50 mg/mL and PS/TEOS mass ratio less than 2. The films cast from the chloroform solution of dicarboxyl terminated PS were more perfect than those cast from the chloroform solution of monocarboxyl terminated PS. The perfect Honeycomb structure films could be obtained with both chloroform and benzene as solvents, but the pore diameter of films cast from benzene solution of PS was larger than that of films cast from chloroform solution of PS.

研究结果表明,聚合物浓度在20~50mg/mL,PS/TEOS质量比大于2:1的条件下可以制备结构完整的多孔膜,且制备的Honeycomb结构在0.8平方公分内无缺陷;采用双羧基封端的聚苯乙烯成膜效果好于单羧基封端的成膜效果;以氯仿和苯作为溶剂均可以制备完全Honeycomb结构的复合膜,但以苯为溶剂制备的多孔膜孔径较大。

In the multiple turbulent jet-to-crossflow, the"hole inhale phenomenon"is more obvious in the lee of the first jet orifice. We got the vortex fields of the multiple turbulent jet-to-crossflow in different conditions. The developing processes of horseshoe vortex and kidney counter-rotating vortex pair are studied. The results suggest that in the multi-hole jet, until the multi-hole jet merging into a new jet, the miniature of horseshoe vortex appears, and the shape of CVP changes regularly.

计算还给出了不同工况多孔横向紊动射流的涡量场,并对马蹄形涡和反向涡旋对的形成机理及发展过程进行了系统的研究,并指出,在多孔射流中,当多股射流合并为一股新的射流之后,才出现马蹄形涡的雏形,CVP的形状也逐渐变的规则。

The porous NiTi shape memory alloy possessed a high mechanical property and good biocompatibility, its unique pore structure confirmed the ingrowths of tissue and the transmission of body fluid, and made the combination of the implant and the body tissue much firmer. Porous NiTi shape memory alloy was a kind of biomedical material with excellent prospect of application.

国内外的研究表明,多孔NiTi合金具有优良的生物相容性和高的力学性能,其独特的孔隙结构可保证组织的长入和体液的传输,使植入物与人体骨组织的结合更加牢固可靠,多孔NiTi形状记忆合金是一种具有良好应用前景的生物医用材料。

The porous NiTi shape memory alloy possessed a high mechanical property and good biocompatibility, its unique pore structure confirmed the ingrowths of tissue and the transmission of body fluid, and made the combination of the implant and the body tissue much firmer.

国内外的研究表明,多孔NiTi合金具有优良的生物相容性和高的力学性能,其独特的孔隙结构可保证组织的长入和体液的传输,使植入物与人体骨组织的结合更加牢固可靠,多孔NiTi形状记忆舍金是一种具有良好应用前号的生物医用材料。

In chapter 4, the plane-radial and plane-parallel flows for Newtonian fluid in fractal porous media are analyzed. Based on the same assumption as that in chapter 3, the expressions for porosity, flow rate, velocity and permeability for both radial and parallel flows are developed. The proposed expressions are expressed as a function of tortuosity, fractal dimension, maximum and minimum pore diameters, and there are no empirical constant and every parameter has clear physical meaning in the proposed expressions.

第四部分研究了分形多孔介质中牛顿流体的平面径向和平行流动,考虑到实际毛细管的弯曲性和毛细管管径的分形分布,给出了径向和平行流动时的孔隙数目、孔隙率、流量、流速和渗透率的分形表达式;得到了分形多孔介质中微可压缩流体的压力分布方程;得到了无量纲的渗透率、压力和流速的解析表达式。

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The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因,如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务,你就做你的事好了。

Who is in possession of this?

这是谁的?