氧化过程

Thermal oxidation treatment can increase the surface hardness and elastic modulus significantly and reduce the E /H ratio of the TC4, which indicate the treatment can enhance the wear resistance of TC4 alloy. Long time treatment can increase the thickness of the oxide layer, but the outside layer is apt to desquamate during the scratching. The oxide layer closing to substrate has better bonding properties, but microcrack forms as a result of high stress loading, which lead the layer to flake off completely.

长时间的高温氧化可以增加氧化层的厚度，但在划擦过程中氧化层发生两次脱落，表明氧化层由外表层和次外层组成，外层结合力差，易发生一次脆性剥落，内层与基体的结合强度较高，但在较大载荷作用下会产生微裂纹，导致氧化层的二次剥落。

The test results showed that under low ambient temperature and aphotic storage conditions jet fuel exhibited good color stability.Oxidation reactions,such as photo-catalyzed oxidation and radical oxidation,were the main reaction mechanism of color degradation,and copper played an important role in catalyzing the oxidation reactions.Under static thermal stability testing condi...

试验结果表明，喷气燃料在较低温度、无光储存条件下具有很好的颜色安定性；氧化反应是导致喷气燃料颜色变深的主要反应机理；静态热安定性试验条件下，喷气燃料的颜色随氧化时间呈相对稳定的加深趋势；氧化铝吸附脱除了喷气燃料中的一些原有氧化抑制剂，使喷气燃料在较高温度、有氧条件下易于发生氧化反应；铜在喷气燃料氧化变色反应过程中具有明显的催化作用。

After the oxidative polymerization of DMP,styrene was in-situ polymerized under the initiation of dibenzoyl peroxide and dicumyl peroxide,finally thermodynamically compatible PPO/PS alloy was prepared.When styrene content was 50 wt%,for the synthesized PPO/PS alloy the yield and the weight-average molecular weight were determined to be 95%and 1.7×10~5 for PPO,93%and 2.0×10~5 for PS,respectively.The influence of the concentration of DMP and catalyst,molar ratio of N/Cu, oxygen partial pressure,NaOH concentration and temperature on the initial polymerization rate(R_0) of DMP was studied.It was found that the initial polymerization rate of DMP increased with the concentration of DMP and catalyst. The initial polymerization rate increased with the molar ratio of N/Cu at first and then decreased.

通过测定DMP氧化聚合过程中氧气吸收量随时间的变化，研究了DMP和催化剂浓度、N/Cu摩尔比、氧气分压、氢氧化钠浓度及温度对水介质中DMP氧化聚合初始速率的影响，发现DMP氧化聚合初始速率与氧气分压的0.1次方成正比；DMP氧化聚合初始速率随DMP和催化剂浓度及温度的增加而增加；随氢氧化钠浓度和N/Cu摩尔比的增加DMP氧化聚合初始速率先增加后降低。

Then the production process is generated and the closed oxygen-enriched rotary furnace heated by electromagnetic induction is chosen as the equipment for high solubility technical molybdic oxide production.

从MoO2氧化动力学过程及热力学过程入手，对MoO2氧化成MoO3可能性及各种参数分析，对生产炉窑的选型作了分析论证，制定了高溶性工业氧化钼的生产工艺并选取了采用电磁感应加热式密闭、富氧回转窑作为高溶性工业氧化钼生产设备。

The time of the pedogenic process was in the last ice age, therefore this area was colder and drier in climate and lower in sea level than today. The main chemical process in the soil was oxidation, a period of the formation of oxide minerals such as limonite. With the deposition and covering of the marine facies layer in the postglacial period, the soil turned into diagenetic process. Consequently the chemical process in the soil was dominated by reduction and this process was the main development period for nodules of iron-manganese carbonate to form.

成土期处于末次冰期低海面、气候寒冷干燥期，土壤的化学过程是以氧化作用为主，是褐铁矿等氧化性矿物形成时期；冰后期海相层的沉积覆盖使土壤层进入成者阶段，土壤层的化学过程以还原作用为主，成岩过程是铁锰碳酸盆结核的主要生成期。

First firing of raw materials are usually basic glaze frit, in the process of production need to add metal oxides, metal ions is also a special color of the enamel glaze color, or as a gel, or suspension-like particles of the dispersion or absorption of light and color, for example, cobalt oxide blue or purple, blue green copper oxide, cobalt oxide copper oxide mixture is significant blue, red cuprous oxide, nickel oxide in the potassium content of the glaze was red, in the sodium yellow glaze of green, if used alone was brown iron oxide, cobalt oxide and manganese dioxide are combined black or dark brown.

通常是先将原料烧成基本釉的熔块，在制作的过程中再加入需要的金属氧化物，也就是以金属离子特具的颜色而使珐琅釉呈色，或成为胶状，或悬浮状的粒子对光线的色散或吸收而呈色，例如氧化钴呈蓝或紫色、氧化铜呈蓝绿色、氧化铜混和氧化钴则显青色、氧化亚铜呈红色、氧化镍在含钾之釉中呈红色、在含钠之釉中呈黄绿色，又如氧化铁单独使用呈褐色，与氧化钴及二氧化锰合用则呈黑色或黑褐色。

The results indicate that the spalling behavior of oxide scale is the result of the inner and outer stress together,during rolling,the oxide scale cracks under the growth stress and thermal stress,at the same time the oxide scale also mainly undergoes alternative shearing stress in the rolling zone,the oxide scale spalls,then the reason of stripspalling is also analyzed.

结果表明：氧化膜剥落过程是内外应力联合作用的结果，轧制过程中氧化膜在长大应力和热应力作用下开裂，在轧制区内氧化膜还因受沿轧辊圆周方向的交变剪切应力作用而剥落。

As far as oxidation is was concerned, the major concern lied with the fatty acids in the system. The oxidation of most of the fatty acids was attributed to the activity of lipoxygenase in barley and malt although other oxidations also exist such as auto oxidation (non-enzymatic), hydroperoxide decomposition and so on. This enzyme is was partly responsible for the development of the 'stale','cardboardy' flavour in beer during storage, and has been a great concern for brewers and the brewing industry.

在制麦和糖化过程中，尽管存在酶的自氧化和氢过氧化物的降解等，但绝大部分脂肪酸的氧化则是由大麦和麦芽中的脂肪酸氧化酶引起的，该酶对于在啤酒存储过程中纸板味的出现起了部分作用，因此引起了酿造者和啤酒企业的极大重视。

According to the technological characteristics of soaking furnace of CSP line, the 3D-unsteady mathematical model of the loss of iron scale in soaking process was established with the experimental reheating furnace as instance by utilizing the methods of equivalent thermal resistance and equivalent mass. The effect of thickening of iron oxidation on heat transfer between gas and slab was considered in the model of loss of iron scale.

根据紧凑式带钢生产均热工艺特点，利用等效热阻和等效质量法，以实验均热炉为研究对象，建立三维非稳态钢坯均热过程氧化烧损数学模型，考虑氧化层的增长对传热过程的影响对氧化烧损量进行计算。

In this work,α-Al〓O〓, form the high temperature calcined product of Al 〓 by Debye method, was used as raw material to fabricate alumina ceramics. The seed crystal was added by ball milling of pure α-Al〓O〓 and the alumina ceramics with elongated grains has been experimentally fabricated.

本研究通过拜耳法制备的工业氢氧化铝粉经高温煅烧过程分解转相得到高温稳定的α-氧化铝粉作为制备氧化铝陶瓷的原料，利用球磨过程的磨耗向氢氧化铝粉中引入高纯氧化铝作为晶种，制备出了具有长柱状晶的氧化铝陶瓷。

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。