查询词典 catalysis

Keywords: fatty acid ester; mineral catalysis; low temperature; hydrolysis and hydrocarbon generation; kinetics

中文关键词：脂肪酸酯；矿物催化；低温；水解生烃；动力学

Under elec trodes, elec trochemical reaction will combin e with chemical catalysis reaction,which will lead to the elec trochemically and catalytically degradation of organic molecules.

在电极的作用下，电化学反应和化学催化作用结合，可导致有机分子的电催化降解。

The color fading reation on potassium bromate with Victoria green stand G by the catalysis of nitrite in hydrochloric acid medium was studied.

采用流动注射技术与催化光度法相结合，研究了亚硝酸根催化溴酸钾氧化维多利亚绿G的高灵敏度褪色反应，用自制的微机化流动注射分析仪能准确控制时间，优化了实验条件，建立了测定痕量亚硝酸根的流动注射催化光度方法。

Antonio Cortes, a researcher at Spain's Institute of Catalysis and Petrochemistry, said:"Sinking is the best thing that could happen to the Prestige" since the cold water and pressure of the ocean basin could solidify the oil and keep it from surfacing.

Antonio科尔斯特，催化和石油化学西班牙的学院的一位研究员，说：&下沉是可能发生在声望&的最佳的事，因为海洋水池的冷水和压力可能变硬油和保留它从浮出水面。

At the same time, the conversion efficiency of NO〓to N〓 was improved by plasma and the selectivity to N〓 formation was enhanced from 1.1% to 1.53%. 4. TPR experiment of simultaneous removal of PM and NO〓 were carried out by plasma/catalysis techniques. The PM was obtained by putting the γ-Al〓O〓 spherules in the diesel exhausts.

选用75％负荷工况挂烟得到的PM的程序升温反应试验结果显示，CO〓和N〓产生在相同的温度范围，表明PM的氧化和NO〓还原同时发生，而且是NO〓和PM的相互作用的结果，并且，PM燃烧得到的程序升温反应曲线是双峰曲线，NO〓在低温段和高温段分别被可溶性有机物SOF和干碳烟DS还原。

With a purpose of making comprehensive use of heavy residual oil, condensed polynuclear aromatic resin is prepared using petroleum asphalt as raw material and terephthalyl alcohol as cross-linking agent under the catalysis of concentrated sulfuric acid or p-toluensulfonic acid.

从综合利用重质油出发，以石油沥青为单体，对苯二甲醇为交联剂，在浓硫酸或对甲苯磺酸催化下合成了缩合多环多核芳香烃树脂。

With high efficiency, high selectivity, security and environmental friendship, the biocatalysis possesses significant advantages over chemical catalysis in organic synthesis, especially in the asymmetric synthesis of the enantiomerically pure compounds and in the resolution of racemates.

生物催化的高效性、选择性、安全性以及环境友好等优点，使其在一些化学合成领域，特别是在对映体纯的手性化合物的合成和消旋体拆分等方面，具有化学催化不可比拟的优势。

In our study, the synthesis of spice and the resolution of racemates menthol,(R, 5-4-hydroxy-3-methyl-2-(2-propenyl)-2-cyclopenten-1-one (R, S-HMPC were achieved in ionic liquids by three lipase that are usually used in biocatalysis. Meanwhile, some problems associated with enzyme catalysis in ionic liquids were also addressed.

本论文以三种常用于生物催化的脂肪酶作催化用酶，在&绿色&反应介质—离子液体中实现了香料的合成和手性对映体的拆分，同时也对酶在离子液体中催化所存在的问题进行了一些探讨。

Proteases are classified in five different classes according to their mechanism of catalysis.

一、作为癌变的分子机理的组成，蛋白酶和其抑制剂是有前景的治疗靶

We have analysed the relations among the mechanism and effect of the discharge driven catalysis, the parameters and the operating characterisic of our system and the plasma process in it, founded its mathematical model, made program and simulated numerally the distribution of plasma parameters in positive volume of discharge tube as well as the connection with operation of our device.

分析了将单质金作为催化剂，直接置入封离轴向放电型CO〓激光器正柱区毛细管内，充分利用器件工作时产生的短寿命高能态活性氧，在放电激励工作区中就近实时高效催化促复的优越性，肯定了其保持工作物质的浓度，减少有害组分的产生，勿需额外驱动、加热激活乃至排换工作气体。

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％。