主要产物

The effect of different reaction conditions,such as catalyst concentration,molar ratio of reactants,reaction temperature,reaction time,on the coupling reaction of trioxane and methyl formate synthesizing methyl glycolate and methyl methoxy acetate using sulfuric acid as catalyst has been studied.Through the analysis for the yield of products and system pressure,and comparison with other different acidity catalysts,we considered that the activation of formaldehyde was the control step of reaction rate to the...

以硫酸为催化剂，研究了三聚甲醛与甲酸甲酯偶联合成乙醇酸甲酯和甲氧基乙酸甲酯的反应中，催化剂浓度、原料配比、反应温度、反应时间等条件对反应过程的影响，通过对产物收率和系统压力变化的分析，并结合与其它不同酸强度催化剂的对比，得到甲醛的活化是偶联反应的速率控制步骤，催化剂的酸强度决定其对甲醛的活化能力，是影响偶联反应的主要因素。

The focus of the present study was mainly concentrated in the heme decomposition products of cell protection.

目前研究的焦点也主要集中于血红素分解产物的细胞保护作用。

The focus of current research also focuses on heme decomposition products of cell protective effect.

目前研究的焦点也主要集中于血红素分解产物的细胞保护作用。

Platelet-rich plasmais obtained from autologous blood after centrifugalization in a cell separator.Originally,PRP was used in clinic as a biologic plasma and barrier velum,in order to enhance the effect of hemostasia.

富血小板血浆是自体血离心后的产物，其最初被作为一种生物凝胶和屏障膜应用于临床，主要作用为提高止血效果。

When the mesostructure is basically formed, the pH value of the reaction system is adjusted to 7-8 and then the hydrothermal crystallization is prolonged for some time to obtain heteroatom-incorporated mesoporous silica. The aim of adjusting pH value to near neutral is to change heteroatom species from the cationic to oxo form and therefore can enter the mesoframework through condensation with silanol groups in the wall.

该方法主要的特点是：操作简单（以调节体系pH值代替繁琐的后处理过程），效率高（可以得到Si/Al=5且铝物种全部处于四配位的骨架位置的Al-SBA-15），不破坏产物有序结构（产品具有高度有序的介孔结构），具有普遍性（适用于多种杂原子的掺杂如铝、钛、钒）。

At present, the oxime is synthesized mainly by utilizing the reaction between hydroxylamine salt and ketone and aldehyde, and defects are the high dosage of hydroxylamine salt and the production of a large amount of byproduct.

目前，肟主要是利用羟胺盐和酮或醛的反应来合成，有两个缺点：(1)高的羟胺盐用量；(2)同时生成大量的副产物无机盐。

RESULTS: The expressed protein was mainly located in the inclusion body.

结果： 表达产物主要位于包涵体内。

SDS-PAGE showed that the expressed product with molecular weight 63.2kDa was mainly in the form of inclusion body.

用12%的SDS-PAGE分析结果表明，表达产物大小为63.2kDa主要以包含体的形式存在。

The level of tPA before and after treatment was not significantly different .Me made the conclusion that tPA had no effect on sperm\' growth , migration and maturation .However we found that the level of uPA in seminal plasma of health adult and patient had statistics difference(P.01). The health adult\'s level of uPA in seminal plasm was higher than patient\'. The level of uPA was improved after treatment and has statistics difference(P 0.01). The incrementation of upa had linear correlation with incrementation of sperm motility of

根据实验研究结果，再结合上述的病机假说，我们认为本实验证明了少、弱精性不育患者精浆中出现了"精瘀"的中医微观证，"精瘀"为其主要的病理变化；在病机演化中，肾虚是不育疾病之本，血瘀是肾虚的继发病理产物，血瘀日久会导致肾虚；并对肾虚-血瘀-不育三者关系作了理论探讨，对聚精汤的(来源：A5a2a2aBC论文网www.abclunwen.com)组成药物进行了本草析微、方义剖析，得出补肾活血法治疗此疾病不但有理论基础，也有实验依据，补肾活血法是治疗这类疾病的有效法则；还提出可以把uPA看作"精瘀"的实验指标，这对男性不育的病因分析、疗效观察、预后判断有一定的来源：A7676BC论文网www.abclunwen.com

Protein is the production of gene expression and the final indicator of the function of gene, so proteomics has become one of the main contents of functional genome.

蛋白质作为基因的表达产物、基因功能的最终体现者，蛋白质组学已成为功能基因组学的主要研究内容之一。

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。