使氧化

In the course of oxidation, reaction temperature should rise step by step, and in the late stage, reduced pressure distillation should follow so that the concertration of gly oxalic acid can rise and production rate of allantoin can rise up to 40%.

在氧化反应的过程中逐步地提高反应温度，反应后期进行减压浓缩，提高了乙醛酸的浓度，缩短了氧化时间，并使尿囊素産率达到40%。

Lanthanides belong to the sixth cycle of the periodic table Ⅲ B family, are all solid metal, they are La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, holmium, erbium, thulium, ytterbium, and lutetium were 15 kinds of metals and their periphery are two layers of electronic 5d16s2, while the peripheral third layer f orbital but never zero to 14, so the external electronic structure of 4f0-145d16s2, and therefore these elements in oxidation number are to 3, very close chemical properties, extraction, when it is difficult to separate them they are mostly multi-element mineral mix, more difficult to increase refining, and their atomic number of 57-71, one by one to increase the number of protons the nucleus, and thus extranuclear electron of gravity is also growing, so that atomic radius decreases with increasing atomic number Z, which makes lanthanides contraction, ionic radius is also reduced, which also makes Zr, Hf, Nb and Ta, Mo and W, the atom and ionic radius very close to each other they also determine a similar nature, resulting in difficult separation, also the tribe Ⅷ of the fifth cycle, ruthenium, rhodium, palladium, and the sixth cycle, osmium, iridium, platinum is very similar in nature, thus The six elements, said platinum group elements.

镧系元素属于周期表第六周期中ⅢB族，全部是固体金属，它们是镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、铒、铥、镱和镥共十五种金属元素，它们的外围两层的电子均是5d16s2，而外围第三层的f轨道电子却从零增加到14个，所以外围电子结构为4f0－145d16s2，而使这些元素氧化数均为＋3，化学性质极为接近，提炼时很难分开，它们的矿石又大多是多种元素混在一起的，更增加提纯难度，它们的原子序数为57－71，核内质子数逐个增加，因而对核外电子引力也不断增强，使原子半径随原子序数Z增加而减小，这就使镧系元素收缩、离子半径也缩小，这也使得Zr和Hf，Nb和Ta、Mo和W等原子和离子半径都很接近、也决定了它们彼此性质类似，以致难以分离、也使第Ⅷ族中第五周期的钌、铑、钯和第六周期的锇、铱、铂在性质上极为相似，因而称这六个元素为铂系元素。

Terminal oxidative inhibitors, such as KCN, Salicylhydroxamic acid , antimycin A and NaN〓, can cut off electron transport chains of cytochrome pathway and alternative pathway, marked decreased BADH protein levels. Oxidative phosphorylation uncoupler 2, 4-dinitrophenol had a similar negative effect on BADH gene expression, and exogenous ATP and ADP increased the BADH levels. These results, in conjunction with the terminal oxidation results, indicated that ATP could be a critical component in BADH gene expression.

2.2 末端氧化抑制剂KCN、SHAM、抗霉素A和NaN〓能打断呼吸链，阻断电子传递，使BADH蛋白的表达量明显降低，说明末端氧化同样参与BADH基因表达的调节：末端氧化影响基因表达的实质就是ATP的影响，线粒体磷酸化解偶联剂DNP明显降低BADH蛋白的含量，而外源的ATP和ADP对BADH基因表达的正效应作用最大。

A semiconductor device including a high voltage element and a low voltage element, including: a semiconductor substrate having high voltage element region where the high voltage element is formed, and a low voltage element region where the low voltage element is formed; a first LOCOS isolation structure disposed in the high voltage element region; and a second LOCOS isolation structure disposed in the low voltage element region, wherein the first LOCOS isolation structure includes a LOCOS oxide film formed on a surface of the semiconductor substrate and a CVD oxide film formed on the LOCOS oxide film, and the second LOCOS isolation structure includes a LOCOS oxide film.

提供一种在确保高耐压元件的高耐压特性的同时使高耐压元件和低耐压元件具有良好特性的半导体装置。具有高耐压元件和低耐压元件的半导体装置包含：规定了形成高耐压元件的高耐压元件区和形成低耐压元件的低耐压元件区的半导体衬底；在该高耐压元件区设置的第一LOCOS隔离结构；以及在该低耐压元件区设置的第二LOCOS隔离结构。第一LOCOS隔离结构由在该半导体衬底的表面上形成的LOCOS氧化膜和其上形成的CVD氧化膜构成，第二LOCOS隔离结构由LOCOS氧化膜构成。

Re-sults:it was shown that Nano MgO had excellent germicidal efficacy to the Escherichia coli and Staphylococcus aureus.To such spore as Bacillus subtilis var.niger spore,Nano MgO also produced good germicidal effect.It was proposed that abrasiveness,alka-linity,electrostatic attraction,and oxidizing power of nano MgO all combined to promote these biocidal properties.

结果： ①纳米氧化镁能有效杀灭大肠杆菌，对枯草杆菌黑色变种芽孢也有显著的杀灭效果；②纳米氧化镁对金黄色葡萄球菌和枯草杆菌黑色变种芽孢有很好的抑菌作用；③纳米氧化物的磨蚀性、碱性、氧化性以及对微生物的静电吸附使它具有抑菌和杀菌作用。

Zinc diamyl dithiocarbamate antioxidant showed good synergism with antimony diakyl dithiocarbamate antiwear additive in improving the oxidation stability of modified soybean oils. The incipient oxidation temperature and induction period time of genetically modified soybean oils were improved significantly by adding polyalphaolefin and additives, and they were even better than that of the synthetic base oil PAO with the same additive formulation.

结果表明，改性大豆油的不饱和脂肪酸含量越高，其氧化安定性越差；抗氧剂二戊基二硫代氨基甲酸锌和抗磨剂二烷基二硫代氨基甲酸锑在改性大豆油中均表现出了良好的抗氧协同性能，尤其在基因改性大豆油中，聚-α-烯烃和添加剂的复配使其起始氧化温度和氧化诱导时间均超过了相同配方的聚-α-烯烃油样。

The effect of the tool composition on the friction and wear behavior was investigated,and the morphologies of the rake face and rear face of the tool cutting the steel in air and nitrogen were observed on a scanning electron microscope. It was found that the Al_2O_3/TiB_2 tool was dominated by adhesive and abrasive wear in low speed dry cutting; while in high speed dry cutting,the tool was characterized by oxidation wear. An oxide layer of TiO_2 was formed by way of the oxidation of the reinforcing agent TiB_2 at a very much high cutting temperature, which contributed to greatly reducing the friction coefficient and increasing the antiwear life of the tool.Such a friction-reducing and antiwear behavior of the oxide layer was enhanced with increasing content of TiB_2 in the tool composite. However,the tool showed a relatively poorer wear resistance in N_2 than in air, because N_2 acted to retard the oxidation of the TiB_2 and the formation of the oxide layer on the tool rake face.

结果表明：低速干切削时，Al2O3/TiB2陶瓷刀具的磨损机制主要表现为粘着磨损和磨料磨损；而在高速干切削时，刀具的磨损机制主要表现为氧化磨损，刀具表面经由氧化反应生成具有润滑作用的反应膜而起到固体润滑作用，从而使刀具的耐磨性能提高，随着TiB2含量和切削速度的增加，反应膜的减摩抗磨作用增强；而在切削区通入氮气时，由于刀具表面氧化膜形成受阻，刀具的抗磨能力有所降低。

The current decay of CO oxidation at Pt SPE gas sensing electrode in short time scale has been studied.

对短时间内Pt－SPE气敏电极上CO氧化电流的衰退现象的研究表明，Pt表面无CO吸附态情况下，衰退主要与电极阳极极化后Pt表面氧化程度加深有关；采用动电势扫描法可使电极对CO氧化的催化活性基本恢复，但随着电极的进一步极化，衰退仍会继续。

The experiment research shows that the Cu2O catalyzed by visible light make the methylene blue and methyl orange to degrade more than 90%, and the Cu2O can be used for several times.

第三、四章中用氧化亚铜进行光催化活性研究，试验表明在可见光照射下，氧化亚铜能使亚甲基蓝和甲基橙溶液经过一段时间降解达到90%以上；并且氧化亚铜能重复使用几次。

Zuoqing in the low temperature, you can retain more alcohol and the second methionine Aoba, can be a new tea; enzymatic oxidation also part of the protein broken down into amino acids by the oxidation of carbohydrate in the formation of different amino acids, such as sulfur acid 100, malic acid, the composition of the aromatic substances; Pro quinone drag caused by ammonia and amino acid carboxyl drag to form a ketone; carotene form of oxidative degradation are also some aroma.

在低温的做青中，可保留较多的青叶醇和二甲硫，可呈现新茶香；酶促氧化作用亦使部分蛋白质分解成氨基酸糖类物质经氧化形成不同的氨基酸，如琉百酸，苹果酸，组成了芳香物质；临醌引起氨基酸的拖氨和拖羧，形成酮类；胡萝卜素的氧化降解也形成一些香气。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。