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In this thesis, the nickel based mixed oxides aerogel catalyst was prepared by sol-gel-supercritical drying method and compared with that prepared by IM method.

研究新的技术，制备高性能的用于顺丁烯二酸酐选择加氢的催化剂是具有理论和实际应用价值的课题。

Are you prepared to work in any affiliated company of shell Limited or any other country world-wide If not, please indicate where you would not be prepared to work.

你是否愿意去壳牌的任一公司或任何国家工作？如果不是，请写出你不愿意去的国家和地区。

Third, most magnesium alcoholates are prepared by alcoholysis.The process is based on the exchange of alkoxide groups of a metal alcoholate in the presence of an alcohol other than the alcohol corresponding to the original alkoxide,i.e.on the alcoholysis of a metal alkoxide with a different alcohol. Primary alcoholates can be prepared by this process,such as magnesium di-n-propanolate,magnesium di-n-butanolate,magnesium di-isobutanolate.

该方法适用于较高沸点的伯醇的醇镁化合物，例如正丙醇镁、正丁醇镁、异丁醇镁等，但是用醇解法制备出的叔丁醇镁，其纯度只有80％，这是由于叔丁醇具有较大的空间位阻效应，阻碍了醇交换的进一步进行，并且叔丁醇沸点与甲醇相差不大，使得甲醇难以快速蒸出，只能得到一种混合醇盐产物。

Materials and methods: The composite was respectively prepared by blending Lysine, Histidine, Arginine with PLGA, while the composite respectively prepared by blending Algin, chitosan, NaHCO3 with PLGA as the comparison and the pure PLGA as the control. All composites were degradated in tri-distilled-water at 37℃ for 7 weeks. The degradation property of PLGA with the addition of basic additives was investigated by using gross observation, the pH change of degradation solution and the mass loss ration of the composite.

材料方法：将赖氨酸、组氨酸、精氨酸分别各按5%和10%的比例与PLGA制成复合物，于体外在37℃下在三蒸水中进行降解2个月；通过总体观察、降解液PH的变化、复合物的失重率等指标来考察碱性氨基酸对PLGA体外降解特性的调节作用，同时将碱性氨基酸的调节效果与海藻酸钠、壳聚糖、碳酸氢钠的进行对比。

Objective To set up the quantitative method of amygdalin in decoctions prepared from various combinations of "Maxing Shigan Decoction" by HPLC and to study the changes of amygdalin in eight decoctions Methods Different decoctions were prepared and analyzed by L8 (2^7) orthogonal design, the contents of amygdalin in each decoction was determined by HPLC.

目的 建立HPLC法测定麻杏石甘汤中苦杏仁普含量的分析方法，研究配伍对汤剂中苦杏仁普含量的影响。方法采用L8(2^7)正交设计，以HPLC法测定苦杏仁普含量。

Among them, 13 have been prepared from structural modification of salpriorthoquinone and salvicine, 4 have been synthesized from ferruginol, and the other 9 have been prepared via total synthesis using anisole as the starting material.

在这一部分的工作中，不仅对沙尔威辛分子可能发生的一些化学转化反应及其机理做了详细的探讨，而且完善并优化了一条简便实用的沙尔威辛及其类似结构的全合成路线。

The soymilk prepared from the treated soybeans is devoid of beany taste and chalky mouthfeel, and has a higher shelf-life than the conventionally prepared soymilk.

由经过处理的大豆制备的豆奶没有豆腥味和白垩口感，比常规制备的豆奶具有更高的货架寿命。

To improve the cyano reactivity, cyano-terminated PPENs were prepared by the end-capping reaction of PPEN-OL with CBN; benzonitrile terminated polys were also prepared by the polycondensation of excess 4,4'-oxydianiline with 1,2-dihydro-2-(4-carboxyphenyl)-4-[4-(4-carboxyphenoxyl)phenyl]-phthalazinone, followed by end-capping with CBA. The polymers synthesized exhibited good solubility in NMP, DMAc and DMF, and were crosslinked to afford phenyl-s-triazine-containing polymers under the similar conditions.

为提高氰基活性，以对氯苯腈为原料，对PPEN-OL进行封端，设计合成了含氰端基的聚芳醚腈；以含二氮杂萘酮联苯结构二酸单体与4，4'-二氨基二苯醚为原料，经Yamazaki膦酰化缩聚，并用对氰基苯甲酸进行封端，合成了含氰端基的聚芳醚酰胺。

The result showed that, rutile TiO2 was well consistent with carrier resin, so the prepared masterbatch had glabrous of surface, and application was better than acute TiO2; the masterbatch was prepared by using polymerization PE wax, whose application is better than masterbatch prepared by using other PE wax, such as hiding power of the film, whiteness of the templet; dispersion of TiO2 was uniformity, and application was improved, in particular hiding power and tinctorial power by adding PPA and nanocalcium carbonate in masterbatch.

结果表明，浓PE白色母粒的加工制备，样品中金红石型钛白粉与载体树脂相容性较好，载体树脂仍能形成连续相，制备出表面光洁的色母粒，且应用性能较优于锐钛型钛白粉；聚合型聚乙烯蜡制备的浓白色母粒，薄膜透过率较低，光密值较大，母粒的遮盖力强，注塑样板的白度高，母粒的着色力强，应用性能优于其它聚乙烯蜡；浓白色母粒中加入PPA和纳米碳酸钙，使钛白粉粒子的分散均匀，提高了母粒的着色力、遮盖力等应用性能。

The transparent and heat-insulating EVA/antimony-doped tin dioxide interlayers used for laminated glass were prepared by compression molding after adding Nano ATO with transparency and infrared reflection function to the EVA through extrusion blending. The heat-insulation performance of the prepared EVA/ATO interlayers was also characterized, and the effects of Nano-ATO content on the tensile property, the optical property, the thermal stability and the adhesive strength to glass of the prepared EVA/ATO materials were investigated.

通过挤出共混法将透明且具有红外反射功能的纳米锑掺杂二氧化锡添加到乙烯–乙酸乙烯酯共聚物中，并经热压成型制备了夹层玻璃用EVA/ATO透明隔热中间膜；表征了EVA/ATO中间膜的隔热性能，并考察了ATO用量对EVA/ATO材料的拉伸性能、光学性能、热稳定性及其与玻璃的黏合性能的影响。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。