转化率

Instantaneous current efficiency of the electrochemical oxidation process of Cr~(3+) in the absence and presence of ultrasound was studied in a divided electrochemical cell.

研究结果表明：在有超声作用和机械搅拌条件下，蒽的转化率和反应速率均比无超声作用时高，且超声作用下的转化率和反应速率又高于机械搅拌。

Ionone was synthesized from Litsea cubeba oil and lemen oil ,and condition of condensation,cyclization and purification of product was studied.

以山苍子油、柠檬草油为原料合成紫罗兰酮，研究了缩合反应、环化反应、产品精制的工艺条件；并缩合反应中，柠檬醛的转化率为99%以上，产品得率95%；环化反应中，假性紫罗兰酮的转化率98%以上，产品得率90%。

In the second step,ion metathesis goes along well and a conversion as high as 85.1％ can be obtained without solvent.

在第一步季铵化反应过程中，不加热不添加任何有机溶剂，可获得高达96.5%的转化率；在第二步离子交换反应中，不加溶剂反应照样进行，转化率可达85.1％。

Different preparative conditions were required in Esterificational Reaction and Pentane Isomerization Reaction.

在异构化反应中，焙烧温度在500℃时制备的催化活性最高，当反应温度50℃最高转化率24.070/0，35℃时最高转化率7.23%。

Ultrasound is found to have significant effects on the oxidation of anthracene to anthraquinone by potassium dichromate in sulfuric acid solution.

温度分别为30℃、40℃和50℃时，在超声作用下，反应4 h后蒽的转化率分别为51.4 %、55.3 %和59.3 %；无超声作用下，蒽的转化率则分别为3.4 %、6.9 %和9.5 %。

Results showed that the hybrid monomer could photopolymerize effectively and both free radical and cationic polymerization processes were improved. When 2-Hydroxy-2-methyl-1-phenyl-1-propanone (1173) was introduced into hybrid system containing UVI-6976, the final conversion of propenyl ether double bond and polymerization rate increased obviously. The comparison of photopolymerization kinetics between hybrid and blend system was investigated as well.

结果表明，以硫鎓盐为光引发剂时，这三种杂化单体均可以有效进行杂化光聚合反应，丙烯基醚和丙烯酸酯双键都显示出较快的反应速度和较高的最终转化率，同时在简单结构的硫鎓盐（UVI-6976）引发体系中加入自由基引发剂2-羟基-2-甲基-1-苯基-1-丙酮（1173）后，丙烯基醚双键的阳离子聚合速率和最终转化率都有了很大提高。

Over the pillared saponite by the impulse reaction, while it was only ～4％ for the pillared montmorillonite, indicating that the substitutions in the tetrahedral sheets played an important role in the development of Bronsted acidity of the catalyst.

层柱皂石的异丙苯裂解转化率达到了65％；而层柱蒙脱土的转化率只有4％。这说明层材料的四面体取代对于层柱粘土Bronsted酸位的形成具有重要的决定作用。

A numerical calculation for the conversion rate of calcium superphosphate products was derived by the a-nalysis of factors on the conversion rate,and a method for the determination of ratio of phosphate ore incomplete decomposi-tion and available phesphate degeneration induced by sesquioxide was put forward,which provided a path for the predictionand adjustment of the process system.

对影响普钙产品转化率的各种因素进行了分析，利用MATLAB 软件包得到了转化率的计算公式，提出了确定未分解磷矿的比例和由倍半氧化物引起的有效磷退化幅度的方法，为生产系统的预测和调整提供了一种途径。

Results On day 2 after injection, the lymphocyte transformation rate of piglets injected with LPS were significantly (P.01) increased compared with piglets injected with saline. The lymphocyte transformation rate of Laiwu piglets were raised significant than Yorkshire piglets (P.05). Effects of immunological stress on the level of swine plague antibody had not significant difference in different breeds of piglets.

结果］猪在LPS后的第2天，其淋巴细胞转化率显著高于生理盐水组(P.0l)，莱芜猪的淋巴细胞转化率显著高于大约克夏猪(P.05)；免疫应激对不同品种仔猪的猪瘟抗体水平无差异性影响。

Comparing with the activity of NiO/γ-Al_2O_3, NiO/TiO_2, and NiO/CeO_2catalysts, NiO/CeO_2 showed the highest light-off conversions of NO and CO and lowesttemperature of total conversion. Three kind of CeO_2 prepared by homogeneousprecipitation, precipitation, and direct decomposition method wereused as the carrier of NiO. Through the activity comparison of NiO/CeO_2, NiO/CeO_2and NiO/CeO_2, CeO_2 optimized as the preferable carrier for active component at aspace velocity of 120 000h~(-1, the coversion of NO is 50％at 170℃over NiO/CeO_2catalyst, and the complete conversion of NO and CO occurred at 210℃.

由Al_2O_3、TiO_2、CeO_2负载的NiO催化剂在NO-CO反应中的活性比较得出：NiO／CeO_2催化剂具有最好催化活性；分别采用直接分解法、氨水沉淀法和均匀沉淀法制备了载体CeO_2、CeO_2、CeO_2，并比较了NiO／CeO_2、NiO／CeO_2、NiO／CeO_2的活性差异，得出了以尿素作为沉淀剂的均匀沉淀法制备的CeO_2负载的NiO活性最好空速为120 000 h~(-1的条件下，170℃时，NO的转化率为50％；210℃时，NO和CO的转化率均达到了100％。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

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如果有任何问题，你可以随时联系我。