查询词典 catalytic

The other one of the technological lines is the one-step process of direct catalytic amination of sec-octanol and methylamine.

该化合物可以由仲辛醇与甲胺直接催化胺化一步法制得。

In addition, Dnmt2 also displays weak DNA methyltransferase catalytic activity, but newly founded function is to methylate cytosine 38 in the anticodon loop of tRNA.

此外，Dnmt2也具有弱的DNA甲基转移酶活性，近年来发现它可以甲基化tRNAAsp反密码子环处38C。

This paper consists of studies of synthesis, structure, physico-chemical and catalytic properties of nickel substituted mica montmorillonite .

在本文的第一部分，我们通过改变不同的配料条件和晶化条件，考察了这些因素对NiSMM结晶的影响。

The electro-catalytic properties and chemical stability of the Pt/WC powder microelectrode for t...

采用循环伏安和线性扫描等方法研究了酸性介质中Pt/WC粉末微电极对电化学析氢过程的电催化行为。

It's the ideal material of making high heat preservation material, microporosity heat preservation, heat preservation board, insulaion board, making-paper, cloth, rope, resistance of rub products and adsorbent, suspending agent, catalytic agent, thickening agent, decolourant, deodorant, carrying agent, etc. so it is a kind of non-metallic mineral which widely used in minmetals.

它是制做高级保温材料、微孔保温剂、保温板、绝缘板、造纸、布、绳、耐摩擦制品和制作吸附剂、悬浮剂、催化剂、增稠剂、脱色剂、除臭剂、助灌剂和载体的理想基料，因而是一种用途十分广泛的非金属矿产。

7Kd. The minium activity of the catalytic antibody was detected to be 1～2μg/ml (10〓M) by the ELISA technique.

纯化后的酶性抗体经ELISA检测，其最低检出活性为1-2μg/ml。

In addition, catalytic spectrophotometry has been widely used in the determination of molybdenum because of its high sensitivity and selectivity.

此外，催化动力学光度法由于其较高的灵敏度和选择性，在微量钼的测定方面也得到了日益广泛的应用。

The catalytic performance of cobalt complexes which contain mono- or bidenate phosphorus, nitrogen ligand on displacement reaction have been studied.

用建立的喷雾反应过程数学模型计算所得结果也与实验数据相吻合，验证了该数学模型的普遍性。

The experimental results show great catalytic performance, and compared with monometallic catalysts, bimetallic catalysts exhibit more excellent photocatalytic reduction activity and selectivity.

实验结果证明光催化反应能快速且有效的降解硝酸盐，且负载复合金属之光催化剂比单金属拥有更高的催化活性及产氮气选择性。

It was found that the samples PVP-PdCl2-CdCl2 and PVP-PdCl2-HgCl2, compared with PVP-PdCl2, exhibited much higher catalytic activity and dechlorination selectivity, and the yields of the coupling by-products were obviously decreased. For example, when p-chloroaniline was used as substrate, the reaction time was shortened to 1/8, and the yield of dechlorination product was about 25 times as much as the original one, and when p-chlorotoluene was used as substrate, the yield of coupling by-product catalyzed by bimetallic catalyst was 1/390 of that catalyzed by monometallic catalyst.

与负载型单金属催化剂PVP-PdCl2相比， PVP-PdCl2-CdCl2和PVP-PdCl2-HgCl2对氯代芳烃脱氯有高得多的催化活性和脱氯选择性，且偶联副产物显著减少；以对氯苯胺为底物时，双金属催化下的反应时间缩短为单金属催化下的1/8，而脱氯产物收率提高25倍；底物为对氯甲苯时，双金属催化下的偶联副产物仅为单金属催化下的1/390。

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％。