溶胶

When weig ht percentage of TiO 2 sol was10%-20%,the coating showed a good hydrophilicity after UV irr adiation for30～60min or sunlight irradiation for2～5hours. The hydrophil ic angle lowered to about 4degree and the surface of coated layer had the featu re of self-cleaning.

在TiO2溶胶质量分数为10%～20%时，该液体在基板上形成的涂层具有很好的超亲水特性，在UV光照射30～60min或阳光照射2～5h后，亲水角可低至4°左右，涂层表面呈现自洁特性。

The results showed that the morphology,particle size and dispersing of nanometer alumina powders were greatly influenced by adding different kinds of peptizers when aluminium alkoxide hydrolyzed.

结果表明，异丙醇铝水解时加入不同种类和不同量的溶胶剂将大大影响着纳米氧化铝粉体的形貌、粒径和分散性。

For decreasing the quantity of the organic solvent and saving the environment, this paper is focused on the preparation of stable TiO2 sol by using titanium alkoxide as precursor and water as solvent while adding acetic acid for the purpose of moderating the rate of hydrolysis.

溶胶-凝胶处理可以在织物的表面形成复杂的氧化物网络结构，这层凝胶固着在织物的表面，改表纤维的表面化学性能，赋予织物一定的功能性。

The sol's sensitivity towater can be improved by using inorganic salts instead of alkoxide as bismuthand strontium precursors, and hence the sol-gel processing can be simplified.

用无机盐代替醇盐作为锶和铋的前驱体，可克服溶胶对空气中水分的敏感性，从而大大简化了SBT薄膜的制备工艺。

The polarization fatigue mechanism and the effect of donor doping Bi〓 on ferroelectric properties of PZT thin films are also revealed. The system of zirconium oxynitrate—tetrabutyl titanate—lead acetate anhydrate—ethylene glycol is adopted to prepare stable PZT sol.

本文采用X射线衍射分析、X射线光电子谱分析、透射电镜、原子力显微镜、扫描电镜、红外光谱分析以及铁电性能测试等研究了溶胶-凝胶法制备PZT铁电薄膜的成胶机理及PZT铁电薄膜的微结构、界面结构及铁电性能，并考察了施主掺杂Bi〓对薄膜铁电性能的影响规律，提出了铁电极化疲劳机制。

An organically modified silicate-PVA as an immobilization material for Hansennula anomala was investigated to develop an optochemical BOD sensor for the determination of BOD.

通过有机改性溶胶凝胶PVA包埋方法固定微生物菌株，以氧光化学传感器作为二次传感，制备了响应良好的光化学BOD微生物传感器。

Since the influences of industrial and anthropogenic activities, the content of atmospheric aerosols increased obviously.

由于工业和人类活动的影响，大气中气溶胶含量明显增加。

The procedure is as follows: First, the haze area is recognized by using band statistic values, Second, the remote sensing image is classified by using unsupervised classification, then the aerosol optical depth distribution is calculated by comparing the radiation values in haze and clear areas, Finally, the image can be atmospherically corrected by using MODTRAN model.

首先，结合SPOT 5各波段的统计特征，从影像上识别出模糊区；然后，对影像进行非监督分类，对同一分类区内像元在模糊区和清晰区的辐射值进行比较，计算出气溶胶空间分布；最后，将气溶胶分布输入MODTRAN模型中，对影像进行大气校正。

Different from conventional fabrication of cathode powder, non-chelating polymer polvinyl alcohol serves to sterically entrap the metal cationa in a manner thewey which facilitates the formation of an atomistically homogeneous precursor material. And, calcining the solid precursor material to form a mixed metal oxide material, that is perovskite structured powder La0.5Sr0.2Co0.5Fe0.5O3.

该方法与传统方法不同，采用非螯合聚合物－聚乙烯醇(PVA， Polvinyl alcohol)作为阳离子的载体，形成含有La(上标 3+)，Sr(上标 2+)，Co(上标2+)，Fe(上标 3+) 4种金属阳离子和非螯合聚合物的均匀溶胶，干燥生成固体凝胶状前驱体。

Gel co-precipitation method and heterogeneous azeotropic distillation technics were used in the preparation of ZrO2 and Al2O3 composite powder.

用溶胶共沉淀法辅以共沸蒸馏法工艺制备ZrO2/Al2O3复合粉体，研究了pH值和锆与铝的离子比对复合粉体和用这种复合粉体制备的瓷体的力学性能的影响。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。