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The optimal conditions were found as follows: reaction temperature 90℃, reaction time 50 min, the molar ratio of catalyst to diethyl adipate 1.1:1, providing 99.5% yield.

结果表明,各试验因素的影响效能为反应温度(反应时间(催化剂用量;最佳合成条件为反应温度90℃,反应时间50 min,催化剂与原料的摩尔比为1.1:1,在此条件下,常压合成目标物的产率可以达到99.5%。

Under the conditions of stir speeds 400 r·min~(-1) and distance between anode and cathode 1 mm, by using the orthogonal design, the optimum technological conditions were found that the current density was 0.3 A·cm~(-2), initial NaOH concentration in catholyte was 50 g·L~(-1), reaction times of two steps were all theoretical electrochemical reaction times. In the first electrosynthesis, initial Na_2CrO_4 concentration in anolyte was 650 g·L~(-1), and reaction temperature was 80℃. In the second electrosynthesis, initial Na_2Cr_2O_7 concentration in anolyte was 700 g·L~(-1), and reaction temperature was 85℃.

324全氟磺酸增强复合阳离子交换膜、阴阳极液中搅拌速度均为400r·min~(-1)条件下,通过正交实验得到优化工艺条件为:电流密度0.3A·cm~(-2),阴极液氢氧化钠初始浓度50g·L~(-1),两步反应时间均为理论电催化反应时间,第一步阳极液铬酸钠初始浓度650g·L~(-1),反应温度80℃,第二步阳极液重铬酸钠初始浓度700g·L~(-1),反应温度85℃。

The thesis investigated the effect of reation temperation, pH value, and material ratio on the chelating reation. To determine the L-aspartic acid zinc complex\' chelation ratio by orthogonal experiment, we get the best conditions of reaction. On this basis, the thesis synthesized L-aspartic acid autunite complex and L-aspartic acid coppe complex.

本课题探讨了反应温度、反应溶液的酸度、原料配比n:n三个方面对L-天门冬氨基酸与金属元素反应得影响,并以螯合率为指标,运用L_9(3~4)正交设计实验对影响L-天门冬氨基酸螯合锌的条件进行了研究,得出最佳的反应条件。

The effects of the composition of catalyst (the structure and amount of bident ligand and strong acid, the cocatalytic activity of Cu〓, the roles of methanol and phenol etc.) and the copolymerization condition (the reaction time, temperature, amount of ST and CO, the structure and amount of dilution reagent etc.) on catalytic activity were studied in detail. Also the optimum copolymerization condition was chosen.

深入考察了催化体系组成(含氮双齿配体的结构与用量、强酸的结构与用量、铜盐的助催化作用、醇类与酚类化合物的作用等)和沉淀共聚反应条件(共聚反应的温度与时间、稀释剂结构与用量、苯乙烯与一氧化碳量等)对该共聚反应的催化活性的影响,优化共聚反应的聚合条件。

Methods: The effects of the ratio of reactants, the amount of the catalyst used, the reaction time and the amount of an water-taking agent on synthesizing isoamyl cinnamate were investigated to obtain a suitable condition for synthesizing the ester.

考察了醇酸比、反应时间、带水剂用量等因素对合成肉桂酸异戊酯的影响,得到合成该酯的较适宜条件。结果:最佳反应条件为n:n=5:1,催化剂用量为肉桂酸用量的20%,反应时间2h,反应温度110~118℃,酯收率可达76.6%。

The expressions of current density and the Faradaic Impedance for the three-step electrode processes involving chemical adsorption,charge transfer and desorption steps in the presence or absence of a chemical competitive reaction have been derived in terms of linear condition in this paper,by which the effect of the chemical competitive reaction on the main reaction was analyzed.

在线性条件下,推导了由化学吸附、电荷传递、化学脱附三步骤的电极过程在有化学竞争反应条件下的电流密度和法拉第阻抗的表达式,分析了不同条件下化学竞争反应对主反应的影响,并使用等效电路对可能出现的阻抗结果进行了理论描述。

But the effluent ammonium in the anoxic reactor, where enough NO2 were present, was equal to the blank system, and no ammonium was converted to such nitrogen compounds as NO2- and N2 by Nitrosomonas eutropha using NO2 as electron acceptor, which maybe caused by lack of the function bacteria. There were two ANAMMOX reaction pathways in the one-stage autotrophic nitrogen removal system. One way was that after part of NH4+ was oxidized to NH2OH under aerobic conditions, NH2OH and NO2- were converted to N2O under anaerobic conditions, at last N2O was further converted to N2 which realized the nitrogen removal; Another way was that at first NO2- was reduced to NH2OH, NH2OH reacted with NH4+ to form N2H4, which was further converted to N2 subsequently, realizing the nitrogen removal.

结果表明:单级自养脱氮系统内6.72%的氨氮是通过吹脱等物化作用去除的,不超过6.02%的氨氮是通过传统硝化反硝化途径去除的,87.26%左右的氨氮是由自养脱氮途径去除的,自养脱氮反应起主要脱氮作用;在足够NO2存在且缺氧的条件下,单级自养脱氮系统内的出水氨氮浓度与空白反应器相当,NH4+并没有被亚硝化单胞菌以NO2为电子受体氧化为NO2-和N2等化合物而得以去除,可能是因为系统内不存在该代谢功能的亚硝化功能菌;单级自养脱氮系统内存在两条ANAMMOX反应途径:其中一条途径即NH4+在好氧条件下被氧化为NH2OH后,生成的NH2OH与系统内的NO2-在缺氧条件下被转化为N2O,N2O则进一步被转化为N2而实现氮的去除;另外一条途径即NO2-首先被还原为NH2OH,生成的NH2OH则与系统内的NH4+反应生成N2H4,N2H4继续被转化为N2而实现氮的去除。

We found evidence for interference (i. e., longer response latencies and more errors) for both form-related (orthographically similar to the true translation) and meaning-related (similar in meaning to the true translation) words relative to unrelated control words.

结果发现,在语义干扰条件和正字法干扰条件下,被试无论在反应时还是错误率上,都大大差于无关控制条件:熟练双语者,语义干扰条件下的反应要显著慢于正字法干扰条件。

Preliminary Study on Enzymatic Modification of Protein──Study on Plastein Reaction of Soybean Protein with Sesame Protein;2. Utilizing alkaline hydrolysate of rice protein as substrate,the effect of plastein reaction condition on the yield of plastein was studied.

以大米蛋白的碱性蛋白酶水解产物为原料,研究了反应条件对类蛋白反应产率的影响,采用正交试验优化了类蛋白反应的条件,并分析了最佳条件下类蛋白的氨基酸组成。

The optimal reaction conditions were as follows:chloroform was used as the reaction solvent,3,5-propionyl acid 0.02 mol,sulphoxide diloride 0.054 mol,the reaction temperature 50℃ and the reaction time 5 h. Under these conditions,the yield of product was 98.9%.

对酰氯合成条件进行了研究,得出优惠反应条件为:以氯仿作溶剂、β-(3,5-二叔丁基-4-羟基苯基)丙酸0.02 mol、二氯亚砜0.054 mol、反应温度50℃、反应时间5 h,优惠条件下产品的收率为98.9%。

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If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了,请告诉我,我会帮助你摆脱困境,真的,请联系我啦!

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放,就是一个这样的例子。

Well, Jerry would rattle off all the details of that movie.

那么,杰瑞会急促背诵那部电影所有细节。