氧化物

The results revealed that ethane and oxygen can react on catalysts with good reactivity and selectivity.

评价结果表明，临氧条件下，在四种铁基复合氧化物催化剂上的反应性能差别较大，这种反应性能上的不同是与催化剂本身结构和晶格氧的活泼性密切相关的。

The partial oxidation of ethane to ethene and hydrocarbon oxygenates is one of the most difficult processes in partial oxidation of alkanes.

乙烷选择氧化制乙烯或烃类氧化物是烷烃选择氧化研究的热点之一，也是难点之一。

They have close relationship as the former may provide new ideas and approaches for the later, while the later may be the simulation for the former and gives it helps in degradation products identification and mechanism explanation. It is necessary to choose a suitable system, which has high potential of treating EDs and close relationship to the natural environment, to combine the researches in the two aspects. Our group has been engaged in researches on the photochemical properties and application to water pollution control of different ferric species including Fe -OH complexes, Fe -polycarboxylate complexes, Ferric oxides and Fe -humic acid complexes. Fe -oxalate complexes system has higher efficiency than the other ferric species systems in photooxidation and degradation of organic compounds. This thesis is focused on the photodegradation of nine EDs estradiol (E2), estrone (E1), 17α-ethynyl estradiol (EE2), diethylstilbestrol , bisphenol-A , 4-Nonylphenol , 4-Octylphenol , di-n-butyl phthalate , and di (2-ethylhexyl) phthalate .

因此从处理效率和环境化学意义两方面考虑，结合本课题组在不同铁形态（包括Fe-OH配合物、Fe-多羧酸配合物、Fe氧化物、Fe-腐殖酸配合物等）的光化学特性及其在水污染控制中的应用方面较系统的研究工作基础，本论文选择了四类共9种典型的内分泌干扰物（雌二醇（E2）、雌酮（E1）、17α-乙炔基雌二醇（EE2）己雌酚、双酚A、壬基酚、辛基酚、酞酸二丁酯和酞酸二乙基己基酯），研究了它们在Fe-草酸盐配合物体系中的光降解效果，推测其降解机理，探索环境内分泌干扰物光氧化处理的新体系，同时为预测其在环境中的光降解行为提供了依据。

Results: the yield rate of the collected volatile oil of artemisia indica and artemisia feddei was 0.32%, 0.29%, respectively. the main constituents of them were as follows: eucalyptol, camphor, borneol, terpineol, cubebene, caryophyllene, caryophyllene oxide, germacrene d, etc, which was similar to the constituents of volatile oil from artemisia argyi. but the contents of volatile oil were different in different medicinal materials. longiverbenone with high content in artemisia feddei was can not be detected in artemisia indica and artemisia argyi.

结果：广西产五月艾与细叶艾挥发油的得率分别为0.32%、0.29%；五月艾、细叶艾和艾叶挥发油中均含有桉油精、樟脑、龙脑、松油醇、荜澄茄油烯、石竹烯及其氧化物、大根香叶烯d等药效成分，但各成分在不同药材中的含量存在一定差别；此外，细叶艾挥发油中含量较高的长叶马鞭烯酮在五月艾和艾叶挥发油中均未检出。

The changes in activities of superoxide dismutase , peroxidase and their isozyme bands in the leaves of Euonymus radicans were studied when seedlings were treated at different duration of cold acclimation and then treated at low temperature stress (-5℃).

对不同冷驯化时间处理及随后低温逆境下的金边卫矛叶片中膜保护酶-超氧化物歧化酶、过氧化物酶酶活性及同工酶谱的变化进行了比较研究，并鉴定了叶片中SOD的类型。

We use in 316 steel pipes chromium content should after 16%-18% the steel joins elements and so on chromium, can change the steel the performance, like the example steel's molecular structure is evener, produces compact oxide compound protective film in the steel superficial change and so on, thus sharpens the stainless steel anti-corrosive ability greatly.

我们所使用的316钢管中铬的含量应该在16％-18％钢中加入铬等元素后，就能改变钢的性能，如例钢的分子结构更均匀，在钢的表面更易生成一层致密的氧化物保护膜等，从而大大提高耐腐蚀的能力。

The results were as follows: Being infected virus, the electrolyte exosmosis rate of tobacco leaf was increased , while the increase rate of the leaf being injected ion was less than that of the control. The activities of SOD?

结果表明：病毒侵染后烟草叶片电解质外渗率增大，但离子注入后烟草的电解质外渗率增幅小于对照；病毒侵染后烟草叶片的超氧化物歧化酶、过氧化物酶、硝酸还原酶的活性及叶绿素含量均有所下降，但离子注入后烟草的上述酶活降幅较小；CAT活性在接毒后呈先低后高的变化，而对照在接毒后 10天该酶活性高出离子注入烟草 2倍多，随后剧降，到接毒 2 5天时仅为离子注入处理烟株 1/ 2。

It is found that the change of threshold voltage value fits in exponential law with absorbed dose,which is caused by the effect of space charge and interface charge.

产生这种现象的原因是场效应管氧化物中的空间俘获电荷与吸收剂量近似成线性变化，对阈值电压变化和吸收剂量有近似线性的改变；而界面态对空间电荷有补偿作用，其对阈值电压的改变与吸收剂量有近似成二次方的关系。

The results showed YYSXF could raise survival rate of the mice after irradition, increase activity of superoxide dismutose and reduce quantity of the lipid peroxide in liver and red blood cell, extenuate micronucleus formating in V79 4 cell, promote unscheduled DNA synthesis and induce production of interleukin 2 in spleen cells and protect bone marrow cells in mice.

结果表明养阴生血饮能提高致死剂量照射动物30d和小剂量多次照射60d及荷瘤小鼠1次照射后20d的存活率；能增加超氧化物岐化酶的活性；降低过氧化脂质的水平；减少细胞的微核形成；促进脾细胞DNA修复；诱导脾细胞产生白细胞介素－2；保护骨髓造血功能

Subsequently, he began to experiment with glazes, and using the technique of oxygen reduction firing, under the guidance of the master-craftsman from Faenza, Umberto Santandrea, he started his research on lustres, employing clays, oxides and salts.

并在Faenza和 Umberto Santandrea的指导下开始光泽研究，泥土、氧化物和盐的选用。

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。