低氧化物

But the dose groups (15 %, 30 % and 60 %) and alcohol group (30 %) were significantly higher than blank group.

果蝇酒精对照超氧化物歧化酶、GSH-Px含量较空白及低剂量样品白酒低，差异有统计学意义（P＜0.05）。

The invention relates to an organic thin-film transistor of three-layer composite film insulated gate which comprises a substrate (1), a metal electrode (2), a organic semiconductor layer (6), a source/leakage electrode; and also comprises: a low dielectric constant polymer layer (3), a high dielectric constant oxide layer (4), a low dielectric constant polymer layer (5), three-layer composite film insulated gate is composed of the (3) layer, the (4)layer and the (5) layer.

本发明涉及三层复合膜绝缘栅的有机薄膜晶体管，包括衬底(1)，金属电极(2)，有机半导体(6)层，源/漏电极(7)；还包括：低介电常数聚合物层(3)，高介电常数氧化物层(4)，低介电常数聚合物层(5)，所述的(3)、(4)和(5)层构成三层复合膜绝缘栅。

The experimental results indicated that these metal oxide catalysts had better catalytic activities to the methylene chloride gas at low concentration, and the catalytic activities increased with the increase of temperature,but decreased with the increase of inlet gas concentration. The CrO3/potsherd catalytic activity was better than V2O5/potsherd, and the CrO3/potsherd catalyst displayed higher activity at the relative low temperature. When the reaction temperature was 320 ℃, the conversion rate could reach 99%, and the result of 100h catalyst stability experiment show that the catalytic activities have good stability.

实验结果表明此类金属氧化物催化剂对低浓度CH2Cl2气体有较好的催化活性，催化剂的活性随温度升高而升高，随入口废气浓度增大而降低，其中CrO3/陶瓷片催化剂的催化活性比V2O5/陶瓷片催化剂的活性好，CrO3/陶瓷片催化剂在较低温度下就表现出较高反应活性，在反应温度320℃时，转化率即达到99%，同时催化剂100h稳定性实验结果表明催化剂活性有很好稳定性，为进一步工业化应用提供理论和实践依据。

To improve the dielectric performance of the syntactic foam ,a kind of a low density dielectric materisl with high dielectric comstant.

为改善复合泡沫塑料的介电性能，采用金属氧化物粒子填充改性双马来酰亚胺空芯玻璃微球复合泡沫塑料得到了高介电常数、低介质损耗因数、低密度、力学性能良好的电介质材料。

objective:to investigate the influence of soybean isoflavones on the antioxidative effect and improving the ability of study and memory in climacteric rats.methods:forty-eight female sd climacteric rats were randomly divided into 4 groups with one control group and the other low,medium and high dose groups,which were given soybean isoflavones 0 mg/kg.bw,42 mg/kg.bw,83 mg/kg.bw and 249 mg/kg.bw by superalimentation daily for 60 days respectively.the levels of sod,gsh-px and mda in serum were measured,and the ability of study and memory in each group was deterimined by adopting the law of diving platform.results:the content of serum mda in medium and high dose groups was lower than that in control group.the activity of serum gsh-px im medium and high dose groups was significantly increased,so was the activity of serum sod in low,medium and high dose groups.conclusion:soybean isoflavones do have the obvious effect of antioxidation,and improve the ability of study and memory effectively in female sd climacteric rats.

目的：观察大豆异黄酮对更年期雌性sd大鼠抗氧化作用及学习记忆的影响。方法：选用健康更年期雌性sd大鼠，随机分成空白对照组和低、中、高剂量4组。空白对照组给予蒸馏水，实验组每日分别灌服42、83、249 mg/kg剂量的大豆异黄酮，连续60d。第60d取血测定血清过氧化脂质丙二醛含量、超氧化物歧化酶活力、谷胱甘肽过氧化物酶活力，用跳台实验方法测定大鼠学习记忆能力。结果：与空白对照组比较，中、高剂量组大鼠血清mda含量显著降低，低、中、高剂量组血清sod活力明显升高，中、高剂量组血清gsh-px活力明显升高。结论：大豆异黄酮具有明显的抗氧化作用，并有效提高更年期雌性sd大鼠的学习记忆能力。

In order to obtain the extralow oxygen steel material with little oxide inclusion, the deoxidizing dynamics of VIM refining in CaO crucible has been researched.

为了获得氧化物夹杂含量极低的超低氧钢铁材料，研究了在真空感应炉中用氧化钙坩埚冶炼钢液时在超低氧含量范围内的深脱氧动力学因素。

In range of 300℃～900℃, all the transition metal oxide catalysts could get high ammonia conversion, during the initial stages of the reaction, the SO〓 conversion is relatively low since the catalysts have not been sulfureted, but it increases gradually and attain constant with rising temperature and time continuance,〓 is better than other catalysts in reactivity and elemental sulfur selectivity; XRD indicates that, in the SO〓-SCR process, stable transition metal sulfide is generated which is very important to SO〓 reduction and transition metal sulfide probably is the active phase of catalyst, further the reduction of SO〓 by H〓 to H〓S is the limiting step of all process, then the activity is somewhat related to its lattice oxygen yet not so notable; XPS indicates that little sulfur on surface exists as S〓 in sulfate, showing that TiO〓 could restrain the generation of sulfate.

对于过渡金属氧化物催化剂的研究发现，在300℃～900℃范围内，不同的催化剂均可获得很高的NH〓转化率，反应初期由于催化剂还未硫化，所以SO〓的转化率较低，随着温度升高和反应时间的延续，SO〓的转化率逐渐升高并达到了稳定值；七种过渡金属氧化物中，以〓对于NH〓还原SO〓反应的活性和选择性最好；XRD结果表明在NH〓-SO〓反应后生成了稳定的硫化物相，硫化物对SO〓的还原过程具有重要作用，催化剂的活性相可能是过渡金属硫化物，而且在硫化物催化剂上进行的H〓还原SO〓生成H〓S的反应是整个过程的速率控制步骤，所以催化剂的活性与其自身的晶格氧的氧化还原能力有一定的联系，但关系不明显；XPS结果表明催化剂表面的硫大部分以过渡金属硫化物的形式存在，只生成少量的S〓，说明TiO〓催化剂能够较好的抑制硫酸盐的生成。

An oxide coating is formed on the surface of the aluminum powder after the surface passivation treatment, so as to efficiently avoid the formation of leakage conductance due to mutual contact between eclectically-conducting additives and thereby to reduce the dielectric loss of the material. The composite material has high dielectric constant, low density and good flexibility. The production method of the composite material has the advantages of simple and controllable process, low hot-pressing temperature, energy conservation and environmental protection.

铝粉经过钝化处理，表面形成一层氧化物包覆层，有效地避免了导电添料因相互接触而形成漏电导，降低了材料的介电损耗；复合材料介电常数高，密度低，加工简单，并具有良好的柔韧性；复合材料的制备方法工艺易控简单、热压温度低、节能环保。

The electrochemical properties of mixed metal oxide anode were evaluated in sea water. The oxide anode has higher electrochemical activity and lower consumption rate than platinized anode and lead silver alloy when it is energized in seawater, indicating that the oxide anode belongs to anode material of high performance.

研究了金属氧化物阳极在海水中的电化学性能，金属氧化物阳极比铂复合阳极、铅银合金等其它阳极材料具有更高的电化学活性和更低的消耗率，属于高性能辅助阳极材料。

Influence of the antioxidants vitamin E and idebenone on retinal cell injury mediated by chemical ischemia, hypoglycemia, or oxidative stressRego A, SantosM, Oliveira C.. Free Radic. Biol. Med, 1999, 26: 1405 - 1417Abstract:A role for the antioxidants vitamin E and idebenone in decreasing retinal cell injury, after metabolic inhibition induced by chemical ischemia and hypoglycemia, was investigated and compared with oxidative stress conditions.

对由于化学贫血与低血糖所引起的代谢抑制后，抗氧化剂维生素E与艾地苯醌视网膜细胞受损所引起的作用进行了研究，同时并与氧化应激情况进行了对比，对氧化物维生素E(20 microM)和艾地苯醌(10 microM)进行先期培养可以在氧化应激或低血糖后防止视网膜细胞受损，而对上述二种抗氧化剂给予预先培养后带来的保护作用则有所减低。

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。