硝化

To determine whether nitration of Trx may alter its cardioprotective effect,adult mice were subjected to 30 minutes myocardial ischemia and 3 hours or 24 hours of reperfusion and treated with vehicle, native or nitrated human Trx1 (10 min before reperfusion).

为进一步确定TRX硝化是否改变其心肌保护作用，采用缺血30 min，再灌注3 h或24h小鼠缺血/再灌注模型，分别于再灌前10 min给予磷酸盐缓冲液，TRX或硝化TRX。

With excessive nitric acid of different concentrations as the nitrating agent, regiospecific of meso-tetraphenylporphyrin were investigated in detail.

以不同浓度的硝酸为硝化试剂，详细考察了多种因素对meso-四苯基卟啉苯环上para位硝化反应的影响。

Research in three aspects is studied in this thesis:(1) Through many experiments,the effects of mixed acid nitratiny reagent and its constitute and the proportion of reactant,as well as the reaction temperature and time ,on the nitrating reaction were studied.

本课题主要做了三个方面的研究：(1)硝化工艺采用硫酸硝酸组成的混酸硝化，通过实验来确定适宜的物料配比、混酸的组成、温度和反应时间以及分析这些因素对反应的影响。

Oxidative and nitrative injury in human umbilical vein endothelial cells (ECV304) induced by high glucose and exogenous nitrating agent were detected by cell biological and chemical methods.

采用细胞生物学及化学方法，检测了高浓度的糖和外源性硝化试剂作用于人脐静脉内皮细胞(ECV304)后所导致的细胞蛋白氧化损伤及硝化损伤。

The total reaction could be explained by two steps.The first was a fast pre-equilibrium,activation nitrating reagent transferred to the catalyst.

反应共分两部进行：第一步是快速的预平衡步骤，活性硝化剂转移至催化剂上；第二步是缓慢的速率控制步骤，粘结在催化剂上的活性硝化进攻试剂与底物反应生成目标产物。

Denitrification gradually took over methanogenesis to become the main reaction responsible for decomposition of MSW, while nitrogen gas was generated instead. Additionally, owing to long term exposure of nitrified leachate to MSW, the bacterial structure of landfill was changed.

在此过程中，反硝化逐渐代替产甲烷作用成为填埋场内垃圾降解的主要反应，产生气体以氮气为主，而非甲烷；硝化渗滤液与垃圾的长期作用也改变了填埋场的菌群结构。

The results indicate that ① the reactor with sulfur particle size of 2.8-5.6 mm can effectively remove nitrate from nitrified leachate up to a concentration of 400 mg/L NO - 3 N at a hydraulic retention time of 5.71h;② the minimum hydraulic retention time necessary for complete denitrification depends on sulfur particle size and influent nitrate concentration;③the maximum volume...

结果表明，当HRT为5.71h，硫磺粒径为2.8－5.6mm时，最高处理浓度（以NO－3－N计）达400mg／L。达到完全反硝化所需的最小停留时间取决于硫磺粒径及进水硝酸盐浓度。硫磺粒径为2.8－5.6mm，5.6－11.2mm，11.2－16mm时，NO－3－N最高容积负荷分别为594，278，175.4g／（m3d）。NO－3－N最大表面负荷约为0.68g／（m2d），是自养反硝化的控制因素，与硫磺粒径无关。

The result shows that the recycling effluent upgrades significantly the removal for BOD_5,COD,SS,and NH~+_4-N,and BOD_5 removal rate meets the Monod equation;most part of NH~+_4-N is nitrified and the removal rate of NH~+_4-N is linear with the surface loading rate.Along with the nitrification,alk...

结果表明：循环出水显著提高了对BOD5、COD、SS和NH+4-N的去除率，且对BOD5的去除满足Monod方程；大部分NH+4-N的去除率与其表4-N被硝化，对NH+面负荷率呈线性关系；随着硝化反应的进行，碱度减少，pH值不断降低；循环出水可引入部分氧气，延长了污染物和附着于植物根系微生物的接触时间，提高了对污染物的去除率。

This paper has done a study on the nitrification kinetics by using enriched nitrifying sludge.

本文利用富集培养的硝化污泥研究了氨氮生物硝化动力学的基本规律。

The influence of nitrification efficiency with adding nitrifying bacteria to the activated sludge process was investigation.

研究了在活性污泥工艺中用投加硝化菌的方法提高硝化效率的特性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。