催化的

Thirdly, selective catalytic reduction of NO with propene over Cu ion-exchanged Al-MCM-41 has been studied.

在氮氧化物催化还原的活性评价实验中，考察了铜离子交换的Al-MCM-41对丙烯选择还原一氧化氮的催化活性。

In addition, the new phosphine-catalyzed cyclization reactions of dimethylacetylenedicarboxylate and methyl propiolate with N-tosylimines are also described.

发展了膦催化下丁炔二酸二甲酯和丙炔酸甲酯与贫电子亚胺的环化反应，这对2-炔酸酯的反应又是一个补充，进一步丰富了膦催化下贫电子炔烃的反应化学。

In order to further improve the catalytic activity and investigate the influence of catalyst acidic properties on the catalytic activity, acid-treated montmorillonite and molecular sieve Hβwere modified by loading Lewis acid and protonic acid treatment.

为了进一步提高催化剂的催化活性和考察催化剂酸性质对催化剂活性的影响，对酸化蒙脱土和Hβ分子筛进行了改性处理并考察了它们改性后的催化活性。

To achieve this, further fundamental studies on the optical resolutions of the selected target carboxylic acids and neutral amino acids have been carried out in organic solvents respectively with acidic, basic, and esters of tartaric acid resolving agents, along with the racemization of the neutral amino acids catalyzed by salicylaldehyde.

为此，分别选择代表性的有机酸和中性氨基酸在有机溶剂中与酸性、碱性和酯类拆分剂分别进行光学拆分的深入研究，同时研究了水杨醛催化下L-型中性氨基酸的销旋催化研究。

The results showed that the phosphotungstic had better catalytic activities than the silicotungstic acid. As for the supported HPAs, the silica gel support HPAs' catalytic activities were higher than the activated carbon support HPAs.

实验结果表明：对于非负载型杂多酸催化剂，磷钨杂多酸的催化活性要高于硅钨杂多酸；对于负载型杂多酸催化剂，硅胶负载杂多酸催化剂的催化活性要高于活性炭负载的杂多酸催化剂。

These compounds, properly designed, can be 1～2 orders of magnitude more surface active than surfactants with a single corresponding hydrophobic and a single corresponding hydrophilic group in the molecules. In this work, selected trimeric surfactant TNP is first synthesized.

本文研究了Gemini表面活性剂GNP和GTB用于脂肪酸酯的碱性水解催化作用，测定了水解速率常数和反应活化能，从动力学机理上说明了所合成的Gemini表面活性剂对脂肪酸酯水解反应有明显的胶束催化作用。

The kinetics for the catalytic oxidation of mixed thiol s with different catalyst particle sizes was studied in the gas-liquid-solid triphase reaction system.

用室内实验的方法对气-液-固三相催化反应体系中不同粒径催化剂催化下混合硫醇的氧化反应动力学进行了研究，并依据球形催化剂假设，采用薄膜理论对反应体系中硫醇浓度分布进行了分析，计算出不同粒径催化剂的有效因子。

A simulated printing and dyeing wastewater, prepared using the undegraded azo dye 4BS and macromolecule chemical dye printing paste CMC as treatment object, the influence of initial pH value, initial concentration, and the concentrations of photocatalyst H2O2 and Fe(superscript 3+) to the photocatalytic degradation effect was investigated, and the related kinetic rule was explored.

以高压汞灯为光源，选用难降解偶氮染料4BS和高分子化学浆料CMC配制的模拟印染废水为处理对象，考察了初始pH值、初始浓度以及光助催化剂H2O2浓度、Fe(上标 3+)浓度对光催化降解效果的影响，并对有关的光催化反应动力学规律进行了探讨。

Veratryl alcohol could stimulate the oxidation of PR catalyzed by LiP, especially at higher molar ratios of H2O2 to PR, however, PR inhibited the LiP catalyzed oxidation of VA.

藜芦醇对LiP催化氧化PR的反应有促进作用，尤其是当H202与PR的摩尔比较高时这种促进作用更为明显；然而PR对LiP催化氧化VA的反应却有抑制作用。

The Pd2-H2O-PEG system are impressive activating for a wide range of substrates.Therefore, palladium catalyzed reactions with PEG has been carried out.

而醋酸钯-水-聚乙二醇催化系统可广泛的活化反应物是颇让人印象深刻的，因此聚乙二醇可有效地促使钯的催化进行反应。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。