考察

The effects of reaction condition and the method of modification onhe alkylation performance of the catalyst were researched.

考察了Hβ沸石及改性后制得催化剂上反应条件及改性方法对反应性能的影响。

The effects of reaction temperature, molar ratio of benzene to DEO and WHSV on the alkylation reaction were also studied.

此外还考察了温度、原料配比、空速等条件对该反应的影响。

The alkylation of benzene with long-chain olefins has been performed in the presence of ionic liquid, the reaction conditions are optimized.

研究了离子液体催化苯与烯烃的烷基化，考察了反应条件对烷基化反应的影响。

Theexpected utility theory based on the axioms isalso very important in modern decision-making theory.Form late fifties lastcentury,some scientists ahead by Allais and Edwards,try to check the facticity ofthe rational decision-making models applied to the real decision-making behavior,but find it unsatisfactory.For example,Allais Paradox and Preference Circleschallenge the axioms critically.

从二十世纪五十年代后期开始，以Allais和Edwards为首的一批学者从心理学的角度参与了实际决策行为的研究，他们从实证的观点去考察理性决策模型在实际决策行为中的真实性，不断地发现这些模型在应用中表现出各种偏差，Allais悖论的设计和克星循环现象的发现对Von Neumann-Morgenstern理性行为公理提出了有力的挑战。

There are 196 groups of allotropy inDunhuang Bianwenall together while giving a synchronic description on structure, meaning and usage of these words, this paper also analyses the diachronic development and changes of these words. Then it probes deeply thespecial characteristics on these words of allotropy inDunhuang Bianwen. Finally, it explains the reasons of appearance about allotropy from the Chinese history.

敦煌变文中共出现了196组同素异序词，首先对这些词的结构、意义和用法进行了共时考察，揭示了同素异序词在这一时期呈现出的独特面貌；然后又历时地分析了这些词在现代汉语中的存亡情况，挖掘了同素异序词的发展演变轨迹；最后从汉语发展史的角度阐释了同素异序词的产生原因。

The result shows that the repeatability of the method is within the range of the allowable repeatability error. The yield of recovery of standard sample is 95%~105%, and the consistency of results is better and the different of two results is less titan 84 in comparison with ASTM D 5762-95 dilution method.

阐述方法原理，考察方法的重复性在允许重复性误差范围内；标准样品的回收率在95%~105%；与ASTM D 5762-95的稀释法比较，结果一致性较好，两种结果的差值小于84个单位。

The isomerization reaction of propylene oxide to produce allyl alcohol catalyzed by basic lithium phosphate was studied.

研究了环氧丙烷在碱性磷酸锂催化作用下异构化生成烯丙醇反应过程，考察催化剂的制备条件，异构化温度对催化性能的影响，以及催化反应机理和动力学特性。

The resin was used as a selective oxidant for oxidation of allyl alcohol to allyl aldehyde.

合成了铬酸氢根季铵盐树脂，以它作为一种选择性氧化剂应用于烯丙醇的氧化反应，考察了温度、时间、溶剂、树脂与醇的物料比对氧化反应的影响。

Quinclorac and allyl alcohol as raw materials, 3, 7-dichloro-8-quinolinoxylic acid allyl ester was obtained when catalyst is oil of vitriol or super solid acid SO〓/TiO〓. Using both catalysts, organic synthesis technology process was made respectively, and the ester was analyzed and characterized by IR spectrum and NMR spectrum Through experiment, both preparing conditions were optimized and discussed respectively.

以TiO〓为载体负载SO〓制备出固体超强酸催化剂，确定了SO〓/TiO〓催化剂制备的技术路线，以丙酸正丁酯为探针实验，考察了新型固体酸催化剂SO〓/TiO〓的催化活性及制备条件对催化活性的影响，对影响其催化效果的工艺条件进行了优化，并探讨了影响的规律性。

The synthesis of pure siliceous and aluminosilicate and various hetero-atoms substituted MCM-48 cubic mesoporous molecular sieves has been studied systematically.

系统考察了全硅和硅铝及各种杂原子取代的MCM-48立方相中孔分子筛的合成。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。