查询词典 oxidation

The effects of current density and oxidation time on thickness and hardness of the obtained anodic oxidation film were studied.

利用X射线，SEM分析了氧化膜的物相组成和表面微观结构，并对其电绝缘性能进行了测试。

In order to investigate the activity of bi-CoSPc to the higher thiol oxide, the 1-octanethiol oxidation rate was determined, the result showed that, the rate of 1-octanethiol oxidation increased with rising of reaction temperature, concentration of catalyst, and concentration of alkali.

结果表明：在相同反应条件下，与CoSPc相比，bi-CoSPc对正辛硫醇的氧化过程具有更高的催化活性；反应温度的升高，催化剂浓度的增加及碱液浓度的提高，均有利于硫醇的催化氧化反应。

At the same time, the scuttle structure of ablation shaped by the reverse process lead the layer of interest exposed to the air to suffer oxidation and infiltration of urania, which is favourable to interlayer oxidation and mineralization of uranium.

同时，反转作用形成的剥蚀构造天窗，使目的层裸露于地表，接受含氧含铀水的渗入和氧化作用，为层间氧化带及其铀矿化的形成创造了有利条件。

At present,the rate laws and reaction mechanisms of pyrite oxidation,pyrite and chalcopyrite formation,uraninite and magnetite dissolution in aqueous solutions are mainly studied,and it is discovered that (1)oxidation rate of pyrite controlled by surface reaction assume fractional dependence on Fe3+ and O2 molalities in acid solutions;(2)Pyrite cannot nucleate directly from solutions below 300 ℃,it can only form initially through sulfidation of a FeS precursor. The rate equation of reaction between FeS and H2S to form pyrite is of the second order;(3)Chalcopyrite is formed by reactions of pyrrhotite or pyrite with Cu2+,the former proceeds via a series of mediate metastable phases of Cu-Fe sulfide,whereas the rate equation of the latter is apparently of the first order which is controlled by surface reaction;(4)The nonlinear behavior of magnetite dissolution at acid pH can be represented by a shrinking core model coupling with surface reaction and diffusion transport.

目前主要研究了水溶液中黄铁矿氧化、黄铁矿和黄铜矿形成、晶质铀矿和磁铁矿溶解的速率定律和反应机理，发现：(1)酸性溶液中黄铁矿的氧化速率对Fe3+和O2浓度呈分数依赖并受表面反应的控制；(2)低于300 ℃时黄铁矿不能从溶液中直接成核，而需初始地通过FeS先驱物的硫化生成，FeS与H2S反应形成黄铁矿的速率方程为二级；(3)磁黄铁矿或黄铁矿与Cu2+反应均可形成黄铜矿，前者经历了一系列准稳的Cu-Fe硫化物的中间物，后者的速率方程为表观一级并受表面反应的控制；(4)酸性pH时磁铁矿的非线性溶解行为可采用表面反应扩散输运耦合的收缩核模型来描述。

Isothermal oxidation and cyclic oxidation behavior of pure and yttrium -implanted nickel was studied at 1000℃ in air.

对纯镍及其表面离子注钇样品在1000℃空气中的恒温氧化和循环氧化行为进行了研究。

The kinetics of thermal oxidation of rosin and abietic acid absorbed on the polyethylene film were respectively studied. The kinetic equation of heat oxidation was determined by UV spectrophotometry.

设计了松香和枞酸在聚乙烯膜上的氧化反应器，建立了枞酸在聚乙烯膜上的紫外分光光度分析方法，跟踪测定了松香和枞酸氧化反应的过程。

The oxidation of abietic acid was studied by UV spectrophotometer on the polyethylene film. The effect of antioxidants such as MBP, FMH, DBH, DSB3 and DSB6 on the oxidation of abietic acid was discussed. Antioxidant value was used to determine their antioxidative activities.

采用紫外分光光度分析方法研究了枞酸在聚乙烯膜上的氧化反应，考察了MBP，FMH，DBH，DSB3，DSB65种抗氧剂对枞酸氧化反应的影响，提出了用抗氧化值AO考核抗氧剂的抗氧化能力。

These new ionic liquid-supported acetylacetone catalysts were used for the oxidation of the intermediates of Vitamin E (2,3,5-trimethylphenol and 3,5,5-trimethylcyclohex-3-en-l-one). It not only checked the rationality of the design, but also established the base for the green oxidation of corresponding reactions.

论文进一步将此类离子液体支载乙酰丙酮金属催化剂应用于维生素E中间体三甲基苯酚和β—异佛尔酮的氧化过程，一方面检验了催化剂设计过程及结果的可靠性，另一方面为相关氧化反应的绿色化改造提供相关的基础。

The adrenochrome can also take part in oxidation-reduction reaction when the potential is about zero volt, consequently, there is another pair of oxidation-reduction peaks correspondingly in the cyclic voltammogram. The deproton step of the protonated adrenalinequinone, viz.

在强酸性溶液中，由于质子化的肾上腺素醌脱质子步骤即第三步难以进行，故不发生一系列后继化学反应，电解产物停止在肾上腺素醌，从而在循环伏安图上只有一对氧化还原峰。

Most of thesete1lurites and tellurates in these deposits are found to be products of coeval oxidationof calaverite, altaite and sufides, by Which "refractory gold" of Au tellurides will bereleased as naive gold. Most native gold released through oxidation of tellurides,however, will be trapped in the telluraes or tellurites; or be combined by Te intellurites or tellurates, which prevent gold of hyPergene from secondaxy enrichmentunder the supergene oxidation environrnenis.

研究表明，这些碲含氧盐大多数为碲金矿、碲铅矿与硫化物共同氧化的产物，&难溶金&矿物在氧化条件下发生分解，一般释放出自然金；由于金要么以自然金形式被&捕获&于这些含氧盐，要么重新与碲形成Au－Te含氧盐，所以抑制了金的次生富集。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。