催化的

The base-catalyzed rapid polymerization of caprolactam applied to the spinning of synthetic fiber was investigated. Acetanilide was used as molecular weight stabilizer, which could efficiently control the course of polymerization and to obtain the polymer with stable viscosity. The scale-up experiments on continuous polymerization and direct spinning were run smoothly.

对碱性催化的己内酰胺快速聚合应用于纺丝进行了研究，采用了合适的分子量稳定剂，控制了聚合进程，得到粘度稳定的聚合体，并且进行了连续聚合直接纺丝的扩大试验，取得了持续稳定运转的结果，纺出产品复丝，其抗张强度为5—6克/，延伸为19—25％，与水解聚合方法同类产品丝相仿。

The reactions catalyzed by the Lewis acids occupy an important place in organic synthesis, but these reactions are normally processing under strict moistureless conditions.

路易斯酸催化的反应在有机合成中占有重要的比重，但这些反应通常需要在严格的无水条件下进行。

The stimu- lating effect of glycine on nitrate reduction was greatly influenced by preillumination treat- ment of tobacco leaves,and also by the activity of respiratory chain.

但乙醇酸脱氢酶主要存在于低等植物如藻类巾；在高等植物中，乙醇酸的氧化主要是由乙醇酸氧化酶催化的，形成乙醛酸和H言02，但没有还原剂的生成L19，。

In chatpter three the mechanism of the gold-catalyzed cycloisomerization of propargylic pyridine was reported.

论文第三章将报道金催化的炔丙基吡啶衍生物的环异构化反应的机理研究结果。

The polymer structure is characterized with IR, NMR and is proved to be PASP. The suitable reaction temperature and time are 220℃～240℃ and 3-4 h at no catalyst in the fields of scale inhibition and fertilizer synergia.

反应机理和实验数据表明，在本文研究范围内，无催化的缩聚反应属于三级反应，生成聚合物聚合度的平方与天冬氨酸初始浓度的平方和反应时间成正比。

The mechanism of redistribution of trichloromethyl and chlorotrimethyl silane catalyzed by ZnCl2 has been obtained by calculation.

通过计算，得出了ZnCl2催化的一甲基三氯硅烷和三甲基氯硅烷歧化反应的机理，得出了IRC曲线和过渡态的虚振动模式。

Protein phosphorylation catalysed by protein kinase is the predominant form of signaling in both procaryotes and eucaryotes, Protein Ser/Thr and Tyr kinase play essential roles in signal transduction.

蛋白质激酶催化的蛋白质磷酸化是原核和真核生物中一种主要的信号传导方式，蛋白质Ser／Thr和Tyr激酶在信号传导过程中起着必需的作用。1993年，张承才在Anabaena sp。

In the second section, we described CuI/L-proline-promoted cross-coupling reaction of aryl iodides with activated methylene c-ompounds.

本论文分为两部分，第一部分为手性胍离子液体的制备及性质表征；第二部分为CuI／L-脯氨酸催化的芳基碘苯和活泼亚甲基化合物交叉偶联反应的研究。

The complex is applied to the ring cleavage reaction of various organic boron agents to the hetero atom norbornadiene.

该类络合物适用于各类有机硼试剂对杂原子降冰片二烯的不对称催化的开环的反应。

They are currently continuing to investigate other novel reactivities promoted by this simple system, including C-C bond cleavage and oxidative amide bond formation chemistry.

团队正在继续探索该体系的详细反应机理及其催化的其它新奇化学反应性能，已经发现的包括C-C键选择性裂解反应和酰胺氧化反应。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。