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To our knowledge, however, it has never been used for reductive amination of carbonyl compounds, nor for reduction of pre-formed imines.

可是据我们所知,它还从来没有被用于羰基的还原氨化和用于一个已制亚胺的还原。

The object of this thesis is the important parameter return rate of income capitalization approach in real estate appraisal.

本论文的研究对象是房地产估价中收益还原法使用的重要参数还原利率。

And the optimum pH was 4-6 for the dechlorination reaction of 2,4-D, and pH between 2 and 8 were all suited for the reaction in Pd/Fe systems. Intermediate and final products of 2,4-D, HCH and chlordane with Pd/Fe were determined by GC/MS, and the possible dechlorination pathways were concluded: 2,4-D can be converted to phenoxyacetic acid through gradual hydrogenolysis, and HCH can be transformed to cyclohexatriene through dichloroelimination or dehydrochlorination.

通过GC/MS定性定量分析了三种目标污染物在Pd/Fe体系中发生还原脱氯反应过程中的反应物及最终产物,并根据反应产物推测分析了这三种有机污染物在催化还原反应体系中可能的反应途径:2,4-D主要通过逐级氢解最终生成彻底脱氯产物苯氧乙酸;而六六六则可能通过逐步双氯消除反应或脱氯化氢反应,最后生成环己三烯。

CAR has high stereoselectivity for aromtic ketones such as acetophenone,2'-chloroacetophenone, 3'-chloroacetophenone, 4'-chloroacetophenone, 3-chloropropiophenone and2-chloro-2',4'-difluoroacetophenone.

羰基还原酶对芳香酮类化合物具有很高的立体选择性,对苯乙酮、2'-氯-苯乙酮、3'-氯-苯乙酮、4'-氯-苯乙酮、3-氯-1-苯丙酮和2-氯-2',4'-二氟苯乙酮还原产物的e.e。

The theory model and main technological parameters for semiconductor of ceramic material is studied, the semiconductor technology of oxygen defect through weak reduction is proposed, the BaTiO〓 semiconductor sample is prepared by means of doping and oxygen defect, the relation between the conductivity and color is inspected, a simple way to detect the semiconducting character of the sample is proposed.

探讨了陶瓷材料半导化理论模型及主要工艺参数,提出了弱还原氧缺陷半导化工艺模型,并分别用电价掺杂半导化和弱还原氧缺陷半导化两种工艺制备了BaTiO〓半导化样品,考察了样品颜色与电导的关系,提出了一种简易判断粉体样品半导化的方法。

The rule of forming H2S, and the effects of deoxidization and sulfur content on H2S are obtained.

并得出还原气氛下煤中硫生成H2S的规律、还原气氛强弱、煤中含硫量对H2S生成的影响。

The effecting factors on deoxidization efficiency of cadmium column are studied.

对镉还原测定食品中硝酸盐的方法进行了改进,研究了影响镉柱还原效率的因素。

Using the mixture of acetic acid and cyclohexane as solvent, the effects of factors such as amount of solvent, ozonolysis temperature, ozonolysis time, amount of reductant and reduction decomposition time on reaction results were examined.

考察了溶剂、臭氧化时间、还原剂用量、还原分解时间和还原温度对反应结果的影响,初步探讨了臭氧化反应级数。

The reaction order was also studied. The obtained optimum conditions were m: m=1:4, ozonolysis time 100 min n (NaHSO3)/n=1.1, reduction decomposition time 60 min, reduction temperature 80℃.

优化的工艺条件为,m: m=1:4,臭氧化时间为100min,n(NaHSO3)/n=1.1,还原分解时间60min,还原温度80℃。

The reaction of the degradation is a first degree , and a constant of reacting rate is 0.5378 mmols/ L.h. The control of step is inside difussion for the process. A series of experiments had been done to remove SO2 with the biochemical reaction system.

脱硫菌通过将硫酸根离子还原成还原态的硫化物然后再固定到蛋白质降解SO2气体,固定化微生物生化降解SO2反应活化能为39.5kJ/mol,降解反应速度为一级反应,反应速度常数为0.5378mmol/L.h,内扩散为过程控制步骤。

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