查询词典 oxidizing agent

By using GC/MS, the process of oxidizing reaction of atractylone is studied, and five decomposition products are obtained, which is greatly different from the references-only two decomposition products, and the mechanism of oxidizing reaction of atractylone is investigated. The hypothesized mechanism of reaction is: atractylone is readily to additively react with water and to generate the semiacetalhydroxyl at 1, 4-site.

利用GC/Ms法跟踪分析了苍术酮纯品的分解过程，得到5种分解产物―与文献报道的苍术酮转变成2种产物存在较大的差异；研究了苍术酮的氧化反应机理：苍术酮与水易进行1，4加成反应，生成半羧醛羟基。

Specificity studies on the substrate revealed that the HdPO was capable of oxidizing not only the o-diphenol, but also tyrosine. The apparent Km value on tyrosine was about 9.52 mmol/L. As shown in the experiments, HdPO behaved oxidizing activities both on diphenol and monophenol, which implies that the HdPO was probably not only a type of tyrosinase-type PO but also a catechol-type.

底物特异性研究还发现此HdPO不仅对邻苯二酚具有氧化活性，对酪氨酸底物也具有氧化活性，且对酪氨酸的Km值约为9.52mmol/L，说明该酶既具有酪氨酸酶活性，又具有儿茶酚酶活性。

Study shows that environment evolution and eustatic change of Holocene in this area may be divided into 6 stages:① early stage of early Holocene, 9 100~10 900 aBP,when sea level was low and this area was an oxidizing environment or oxidizing-reducing transition environment;② late stage of early Holocene, 8 000~9 100 aBP, sea-level rising,...

研究表明，本区全新世环境演化分为6个阶段：①早全新世早期，10900~9100aBP，海平面较低，尚未淹没本区，为近岸氧化环境或氧化—还原过渡环境；②早全新世晚期，9100~8000aBP，海水上涨，本区时淹时退，为浅海或潮坪环境，生物钻孔发育；③中全新世主体，8000~4150aBP，海平面快速上升，完全淹没，Fe2+/Fe3+介于0.7395~1.9123之间，为全新世中最高段，表明还原程度强、全球气候变暖；④中全新世后期，4150~2850aBP，海水有所下降，仍为浅海环境，Fe2+/Fe3+较高，多在1.0以上；⑤晚全新世，2850~1310aBP，海平面进一步下降，本区时常暴露，其中2150~1310aBP以还原环境为主，为潮下带，2150~2850aBP以氧化—还原过渡环境为主，为潮间带；⑥1855AD以来，海平面基本稳定，稍有上升，为现代黄河三角洲沉积时期。本区全新世至少存在5期冷热交替的旋回性气候变化。

The number of autoterophic bacteria were significantly lower than the heterotrophic bacteria. Majority of 21 strains of heterotrophic bacteria that isolated from water body were Pseudomonas. Majority of 25 strains of heterotrophic bacteria isolated from sediment were bacillus, microccus and Pseudomonas.Three genus of autotrophic bacteria were sulphuret bacteria, nitrify bacteria and nitrosobacteria that were capable of oxidizing H2S, S, FeS, oxidizing NH3 to NO2 and NO2 to NO3 respectively.

试验稚鳖池水中共分离出21株异养细菌，其中优势菌为假单胞杆菌属细菌；底泥中共分离出25株异养细菌，其中优势菌为芽胞杆菌属细菌，微球菌属细菌假单胞菌属细菌，三种自养细菌分别为具有氧化硫化氢、元素硫或硫化亚铁的硫细菌；具有氧化氨为亚硝酸的亚硝化细菌和能将亚硝酸进一步转化成硝酸的硝化细菌。

The results showed that the percentage of ammonia oxidizing bacteria and nitrite oxidizing bacteria in the activated sludge was 15.7%±3.7% and 12.9%±3.2%, Nitrosomonas europaea-Nitrosococcus mobilis lineage were the dominant AOB, Nitrobacter spp.

结果表明，污泥中氨氧化菌的含量为15.7%±3.7%，优势菌属为Nitrosomonas europaea-Nitrosococcus mobilis；亚硝酸氧化菌的含量为12.9%±3.2%，优势菌属为Nitrobacter spp。。

The results reveal that oxidizing temperature has important effect on oxidation of pellets and the reasonable oxidizing temperature is about 900℃.

结果表明，氧化温度对球团氧化有重要的影响，氧化温度以900℃左右为宜。

NO+NH3 temperature-programmed reaction runs over reduced catalyst samples pretreated with various oxidizing species showed that both NO2 and HNO3 were able to reoxidize the V catalyst at much lower temperature than gaseous O2: furthermore, they significantly enhanced the NO + NH3 reactivity below 250 C via the buildup of adsorbed nitrates, which act as a surface pool of oxidizing agents but are decomposed above that temperature.

不+NH3 温度-规划反应奔跑结束减少催化剂样品预先处理与各种不同的氧种表示两者的没有 2 和 HNO3 能够到再氧化 V 催化剂在非常低的温度超过气体的 O2：此外，他们重要地可提高的那不+ NH3 反应度在下面 250？C 经由组织吸附硝酸盐，哪一个行为当做一表面池氧代理人但是被分解上方哪一温度。

The major phase of both slags produced from air and CO/CO2 conditions were SiO2 and Fe2O3, which have much benefit to the encapsulation of heavy metals. The leaching concentration of zinc in CO/CO2 reducing condition is an order less than that in air oxidizing condition due to the higher vapored heavy metals in CO/CO2 reducing condition compared to that in air oxidizing condition. Furthermore, the leaching rate of heavy metals in both CO/CO2 and air conditions are almost the same.

在熔渣特性改变方面，空气气体与CO/CO2还原气氛下所得之熔渣除外观上不同外，两种熔渣之XRD之图谱因熔渣之结晶程度不良，仅可鉴定出SiO2及Fe2O3两种晶相，因而熔渣中之SiO2及Fe2O3可视为较为稳定之晶体结构，故在还原气氛熔融时，对熔渣中重金属之匣限化仍具有正面助益。

A process for decomposing CO2 generated industrially includes such steps as collecting CO2 tail gas, dusing and desulfurizing, oxidizing degradation in oxidizing tower, decomposing the oxidized tail gas in reactor to obtain oxygen gas for exhausting it and carbon-contained gas, and preparing carbon powder in carbon absorption tower with electric decarbonizing unit.

一种工业产生二氧化碳的分解处理方法，它包括：对二氧化碳尾气进行收集；对收集的尾气进行除尘和脱硫处理；将处理后的尾气送入氧化塔做二次氧化降解处理；将二次氧化的尾气送入反应槽进行分解；将分解后的氧排出，分解后的碳气送入一个碳吸塔的电除碳器形成碳粉。

The donor impurity and grain boundary combustion-supporting agent containing acceptor impurity were added successively in the ceramic powder during ceramic powder preparation, both of them can also promote grain growing and semiconductive, and the combustion-supporting agent can be good to form insulation layer in oxidizing process.

采用一次性烧成技术研制了晶界层半导体陶瓷电容器，在瓷料配制过程中先后加入施主杂质和含有受主杂质的晶界助烧剂，两者在还原烧成时促使晶粒生长并半导化，助烧剂在氧化时有利于晶界绝缘层形成。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。