查询词典 catalysis

The Catalysis effect of tertiary butyl-ferrocene and lead chromate etc.on RDX/AP HTPB propellant burning rate has been examined.

探索了叔丁基二茂铁、铬酸铅等添加剂对RDX/AP丁羟推进剂燃速的催化效果。

Lipase is a surface-activated enzyme and, therefore, interface plays an important role in the course of catalysis.

作为本论文工作的第三部分，研究了脂肪酶微乳液的凝胶固定化条件及固定化脂肪酶的一些酶学性质。

Due to their unique properties in optics, electronics, magnetics, and catalysis, nanoparticles are becoming a hot topic in the scientific research.

中文摘要纳米材料由于其新颖独特的光、电、磁和催化性能日益成为一大研究热点。

In this thesis, 1, 5-diaryl-3-pyrazilidinones, 1, 5-diaryl-3-hydroxypyrazoles and 3-(2, 3, 4, 6-tetraacetyl-β-D-glucopyranos-1-yl)-1, 5-diaryl-1H-pyrazoles are designed and synthesized.1, 5-diaryl-3-pyrzolidinones were obtained by condensation of 3-arylpropenates and phenylhydrazine or fluorophenylhydrazine under the catalysis of sodium methylate and the yields were about 55-80%.

在本文中，设计合成了1，5-二芳基-3-吡唑烷酮化合物、1，5-二芳基-3-吡唑烷酮化合物和3-(2，3，4，6-四乙酰基-β-D-吡喃葡萄糖-1-基)-1，5-二芳基吡唑化合物。以3-芳基-2-丙烯酸酯为原料，与芳基肼在醇钠的催化作用下，反应可以生成1，5-二芳基-3-吡唑烷酮，产率在55%以上。

By researching the catalysis action of metals in hydrogen storage materials, it is found that metal activators accelerate hydriding-dehydrding velocity of hydrogen storage materials in the process of grinding, and they also reduce the dehydriding temperature, enhance the hydrogen storage capacity of materials, and hasten the formation of similar-graphite microcrystal in the process of pretreatment.

通过对储氢材料中金属催化作用的研究发现，金属催化剂促进材料球磨过程中的快速吸氢，加快材料的放氢速度，降低材料的放氢温度，提高材料的储氢密度，促进无烟煤在预处理过程中类石墨微晶结构的形成。

The catalysis of some mimetic models of natural peroxidase in the phenol and phenolic derivant oxidation was investigated.

研究了多种过氧化物酶的模拟酶对酚类氧化反应的催化作用。

Greater pressure comes from at Google, this catalysis all competition is minatory.

更大的压力来自于Google，这个催化一切的竞争威胁。

In catalysis, in order to dispel the toxic issue of the catalyst and obtaining the advance and rationality of produce procedure adopted the nonpoisonous catalyst CH-2 to make PFS, which can expand the range of application of PFS and offer more effectively utilization in pyrite cinder for technical support and theoretical foundation.

在催化氧化聚合工艺中，采用了一种无毒催化剂CH-2，以消除催化剂的毒性问题，获取制备工艺的先进性和合理性，扩大PFS的应用范围，为硫铁矿烧渣的更有效利用提供技术支持和理论依据。

Catalysis ; phenol ; octene ; alkylation ; molecular orbital theory.

催化；苯酚；辛烯；烷基化；分子轨道理论

The synergism of photochemical catalysis and ozonize to treat light polluted water is studied as well as single effects.

研究了利用光催化-臭氧协同处理微污染水体，分别考察了单一作用和协同作用、不同降解时间、pH值以及不同负载方式下的去除率。

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％。