氧化过程

In the gas-liquid phase reaction of catalytic oxidation of mesitylene by air to synthesize trimesic acid and the related process,an analysis method of reaction components was proposed,which includes chromatographic analysis,mass spectral analysis,IR spectrum,atomic absorption spectrophotometer and chemical titration for the purpose of analyzing reaction groups.

针对均三甲苯气液相催化空气氧化合成均苯三甲酸的反应及相关的工艺过程中，反应产物均苯三甲酸的分析问题，提出以色谱分析、质谱分析、红外光谱分析、原子吸收光谱分析及化学滴定为主要分析手段对反应组分进行分析，重点研究并建立了相关的分析方法。

He hypothesis has been proved by SEM and TEM. The characterization of TPR and XPS showed that there had reduction process of oxide species before crystallization, and the reduced species and metalloid content increased generally on the surface of catalysts.

PR和XPS表征证实在负载型非晶态合金Ni-P/TiO〓的晶化温度前，有金属氧化物种的还原过程，还原后，催化剂表面的还原态物种增多，类金属相对含量普遍增加。

The results showed that the feeding of mineralizer lowered the calcination temperature of α-Al2O3, promoted its crystal transformation and reduced its sodium oxide content.

矿化剂在煅烧α-Al2O3过程中的作用主要表现在降低煅烧温度、促进α-Al2O3晶型转化和降低α-Al2O3中氧化钠含量。

In biotechnology pharmaceuticals, medical intermediate production and bioactive compounds separation from natural products ,the molecular distillation can realize the separation of high boiling point, thermal and air sensitive compounds.

在生物制药和医药中间体的生产以及天然产物中活性物质的提取过程中，分子蒸馏可以实现高沸点、热敏性和易氧化物质的分离。

The results showed that for 2Y-TZP materials, because of low stabilizer content and small critical transformation size, more tetragonal zirconia could change into monoclinal, better effect of transformation toughening operated, hence higher fracture toughness was obtained.

晶粒尺寸、稳定剂含量对氧化锆陶瓷相变增韧效果具有重要的影响。2Y-TZP材料由于稳定剂含量低，临界相变尺寸也小，在低温烧结条件得到细晶粒情况下，断裂过程中有更多的晶粒达到或超过临界相变尺寸，因而具有更高的断裂韧性。

The SOD was tested by improved muriatic acid hydroxylamine method, the total albumen content of stomach homogenate was tested by Lowrys method and TAC was tested by TAC kits.

SOD和TAC的显著改变说明活性氧损伤在萎缩性胃炎发生发展过程中起着重要的先导作用，也提示有效的抗氧化干预很可能对于预防萎缩性胃炎具有很好的防治作用。

Different kinds of metal ions,such as natrium ion,calcium ion and iron ion were introduced into PAN fiber with aquatic solution.

引言PAN基碳纤维是以PAN基原丝为原料，通过预氧化和碳化过程中一系列物理和化学变化制成的[1]。

However, up to now, the MR effect of MTJ with Fe3O4 as an electrode has been found to be negligibly small.

可能是带有自旋的电子在穿隧过程当中在接面处发生了自旋翻转，以及MTJ系统中间的氧化绝缘层和Fe3O4之间在接面处的作用，降低了Fe3O4本身的自旋极化率。

Background: Peroxynitrite was hypothesized to be involved in the pathogenesis of multiple sclerosis through its various neurotoxic effects.

研究背景：在多发性硬化的病变过程中通过多种细胞毒效应产生过氧化氮阴离子。

Methane, oxygen and H_2O molecules are activated, ionized and dissociated into active particles such as CH_3~+, O~-, H_2O~+, CH_3, CH_2, CH, H,OH and O, by nonelastic collision with high energy electrons. The particles react with each other in the reactor to synthesize chemically products including gaseous oxy-hydrocarbons.We study the rule of reaction by changing electrical parameter, gas flow etc. Study the conversion of methane, selectivity of gaseous hydrocarbons and yield of methanol under different reaction condition.

针对常规甲烷催化转化和氧化偶联制备含氧化合物的问题，遵循国际化学科学研究前沿"绿色化学"原则，采用自然界存在丰富的CH_4、H_2O和O_2为原料，在绿色友好的常温大气压无任何催化剂的条件下，采用强电场电离放电加速电子及其激励气体分子的极端物理手段，在反应腔体内进行无任何环境污染的非平衡等离子体化学反应，将气体分子激发、电离、离解成CH_4~+、CH_3~+、CH_4~·、H_2O~+、H_2O~·、O_2~+、O(~1D)等活性粒子，生成气态烃及含氧碳氢化合物，整个反应过程实现零污染、零副产品。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。