催化的

On the basis of surveying photocatalytic oxidation, printing and dyeing wastewater treated and sulphide mineral hydrometallurgy by photocatalytic oxidation technology were studied systematically in this paper.

本文在综述光催化氧化技术的基础上，较为系统地研究了采用光催化氧化这种新技术来处理当前较为复杂的印染废水和硫化矿物的处理问题。

TiO_2 becomes one of the most potential photocatalytic materials at present due to its photocatalytic activity,high stability,innocuity and accessibility.

TiO_2众所周知的光催化活性、较高的稳定性、无毒及容易获得等优点，使之成为目前最有潜力的光催化材料。

The physical chemistry properties of catalysts were characterized by ICP,XRD and NH_3-TPD,alkylation of p-cresol with isobutylene over β zeolite modified by Mn and Ce was carried out and the catalytic activity of the zeolite was investigated.

用等离子发射光谱、X射线衍射分析和NH3程序升温脱附(NH3-TPD)表征了改性Hβ沸石的物理化学性质，考察了Mn和Ce改性Hβ沸石对对甲酚-异丁烯烷基化反应的催化性能，并探讨了Mn改性Hβ沸石催化下温度、原料摩尔比和空速对烷基化反应的影响。

Aiming at the high content of sulfur mercaptan and short induction period of the naphtha, countermeasures were taken for improving the quality in accordance with the resid FCC char...

针对经常造成重油催化裂化汽油硫醇硫含量偏高、诱导期偏短的问题，结合重油催化裂化生产的具体特点及经验，提出了改善汽油质量的对策，并取得了满意效果。

The photocatalytic degradation property of ZnM2O4 (M=Cr, Mn, Fe) nanoparticles was investigated by using methyl orange, acid red B and reactive red K-2G as model pollutants under the irradiation of a mercury-vapor lamp (λ＞400 nm) or sunlight. The degradation rates of the above three dyes by ZnM2O4(M=Cr, Mn, Fe) are over 80％, 57％ and 39％, respectively within 2 h. It is found that ZnM2O4 (M=Cr, Mn, Fe)has a novel photocatalytic behavior for dyes under visible light irradiation.

在高压汞灯(λ＞400 nm)和太阳光照射下，纳米ZnM2O4粉体对甲基橙、酸性红B、活性艳红K-2G等有机模拟降解液的2h脱色降解率分别达到80﹪，57﹪和39﹪以上，表明锌尖晶石ZnM2O4光催化剂具有良好的可见光催化活性，并随禁带宽度Eg的减小，催化活性增加。

Then, the mechanism and rate constant of the photocatalytic degradation of the methylene blue solution were investigated.

结果显示，反相微乳液法制备的纳米TIO：具有较高的光催化活性，但负载型光催化剂MCM一TIOZ显示更好的光催化活性。

In the article with emphasis has studied take FLUENT as thesoftware platform natural gas desulphurization catalysis modellingplan, in order to enable to include the hydrogen sulfide the naturalgas as far as possible evenly through the entire catalyst carrier,enhances the natural gas desulphurization catalysis transformationefficiency and the service life, has carried on the value simulationand the simulation to it optimizes, and carries on the contrast withthe former related conclusion.

文中重点研究了以FLUENT为软件平台天然气脱硫催化器的建模方案，为了使含有硫化氢的天然气尽可能均匀地通过整个催化剂载体，以提高天然气脱硫催化器转化效率和使用寿命，对其进行了数值模拟与仿真优化，并与以往的相关结论进行对比。

Conjugated enzyme :An enzyme that contains nonprotein component in addition to the amino acids.

酶的活性中心：酶分子中直接与底物结合，并催化其转变成产物的特定空间区域，是酶发挥催化作用的关键部位。

In diluted H2SO4 and heating at 85℃, the discoloration reaction of xylene cyanol FF oxidized by potassium periodate can be greatly catalyzed by ruthenium. According to this phenomenon, a new method for catalytic kinetic spectrophotometric determination of ruthenium has been developed.

在稀H2SO4介质中及85℃的加热条件下，Ru对高碘酸钾氧化二甲苯蓝FF褪色反应具有显著的催化作用，据此建立了催化动力学光度法测定痕量钌的新方法。

On the basis of catalytic action of iridium on the oxidation reaction of xylene cyanol FF by the potassium periodate in the medium of 0.02mol/L H2SO4 and heating at 95℃, a new catalytic kinetic spectrophotometry for the determination of iridium is established.

在0.02mol/L硫酸介质中及95℃的加热条件下，对高碘酸钾氧化二甲苯蓝FF的褪色反应具有显著催化作用，据此建立了催化动力学光度法测定痕量依的新方法。

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％。