铈的

Nanocrystalline CeO 2 were prepared by sol gel method using cerous nitrate and citric acid. The powders were analyzed by XRD. It was showed that the synthesized CeO 2 was cubic in structure and CeO 2 particles were basically spherical in shape.

摘 要：以硝酸铈和柠檬酸为原料，采用溶胶凝胶法制备了纳米CeO2 对反应温度、金属离子与配体的摩尔比、凝胶烘干温度、焙烧温度等制备条件对产物的影响进行了研究。

The CMC grafted polyacrylamide co polyacrylic acid at the same time was produced. The redox system of patassium sulfate and sodium bisulfite was used as the initiator instead of the cerous ammonium nitrate because of its cheapness.

以羧甲基纤维素为基质，以过硫酸钾-亚硫酸氢钠氧化还原引发体系代替相对昂贵的硝酸铈铵引发剂，成功的制备了羧甲基纤维素同时接枝聚丙烯酰胺-聚丙烯酸共聚物。

The Carboxymethyl Cellulose grafted polyacrylamide was synthesized with the cerous ammonium nitrate as the initiator and the absorbent resin with excellent water absorbing abilities was produced through hydrolyzing the CMC-g-PAM.

以羧甲基纤维素为基质，以硝酸铈铵为引发剂，成功的制备了羧甲基纤维素接枝聚丙烯酰胺，进一步水解获得了具有优异吸水性能的高吸水树脂。

The wood-cellulose grafted polyacrylamide was synthesized with the cerous ammonium nitrate as the initiator. The absorbent resin was produced through hydrolyzing the Cell-g-PAM.

以木纤维为基质，硝酸铈铵为引发剂，成功的制备了纤维素接枝聚丙烯酰胺共聚物，进一步经过碱性水解，获得了具有一定吸水性能的吸水树脂。

The experimental results showed that SiC ultrafine powder was synthesized at 1500℃for 120 minutes by used rare earth lanthanum as additive. Its primary particle size was about 100nm and aggregated particle size was about 360nm and the particle shape was regulation, non-aggregation and well dispersibility. While the rare earth ceria used as the additive, SiC ultrafine powder was synthesized at 1500℃for 150 minutes but the particle shape was irregulation and seriously agglomerated and had numerous crystal whiskers.

实验结果表明：以稀土镧为添加剂时，在1500℃×120min合成工艺下，可以合成出一次粒径为100nm左右，二次粒径为360nm的SiC细粉，且SiC粉体颗粒形状规则，无团聚，分散性好；以稀土铈为添加剂时，在1500℃×150min合成工艺下，也可以得到单相的SiC，但SiC粉体颗粒形状不规则，有大量晶须存在，且团聚严重。

The graft copolymerization of vinyl monomer onto carbon black with,respectively,ceric ions, n butylithium,acetylacetonate copper complex and manganic pyrophosphate complex as initiator were studied.

讨论了分别在铈离子体系，正丁基锂体系，过渡金属离子乙酰丙酮铜以及焦磷酸络锰体系的作用下，炭黑与乙烯基单体的接枝聚合。

The effect of additive concentration on tribological characteristics of liquid paraffine and water was evaluated on Optimol SRV friction and wear tester. The effect of anions and cations on the tribological properties of additives in water was also investigated.

(1)考察了在干摩擦和液体石蜡润滑下铈离子注入剂量对GCr15轴承钢摩擦磨损性能的影响，以及大气中水分对注入试样摩擦磨损性能的影响，采用XPS和EPMA等表面分析仪器对磨损表面进行了分析。

Amount of CeO2 impregnated has an important effect on its state of existing over HZSM-5 zeolite catalyst.

结果表明，铈在HZSM-5分子筛表面的存在形态与它的含量有关。

A cerium dioxide target was used for sputtering and films were deposited at various substrate temperature under different sputtering power.

溅射过程中，首先制备纯二氧化铈靶材，然后在不同的功率上调节不同的基片温度进行溅射。

By using magnetron sputtering technique, the rare earth films including Ce-rich mischmetal, La-rich mischmetal, lanthanum and yttrium were prepared on glass, ITO glass and Si substrates under the vacuum environment. The crystal structure, surface morphology, electrochemical properties and optical performances during the hydriding/dehydriding process were investigated, the reaction mechanism and invalidation reason were analyzed as well.

本文采用直流磁控溅射方法分别在玻璃、ITO玻璃和Si片等基体上制备了富铈、富镧、La和Y等稀土系薄膜，对所制备的稀土薄膜在气态和电化学充放氢过程中的晶体结构、表面形貌、电化学性能和光学性能等进行了研究，并对其反应机理和失效原因进行了探讨。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新