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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。

Using polyurethane as matrix and carbon black as conductive medium, electric conductive master batch was prepared with the blend method, and the carbon black /polyurethane blend conductive fiber was prepared with melt spinning method.

研究表明：随着碳黑含量的增加，导电性增强，但纤维的力学性能、可纺性下降，当碳黑质量分数为16％时，其导电性和力学性能较好；分散剂的含量对纤维导电性也有一定的影响

Here again is a mystery which the Calvinist is prepared to accept, since he is prepared to accept the ultimate mystery of God's being and action.

这里又是一个谜，其中calvinist愿意接受，因为他是准备接受最终的奥秘，上帝的作为和行动。

The plainest of plain language..

最通俗的语言

With increasing iodine value,the activation energy of vegetable oil hydrolysis in near-critical water decreased.

油脂水解活化能与其碘价密切相关，随着油脂碘价的增加，水解活化能逐渐降低。