查询词典 n-amyl nitrite

There was significantly higher hemocyanin level at 2.2 mg/L ammonia-N and 2.0 mg/L nitrite-N than that in the control group.

在氨氮质量浓度为2.2mg/L、亚硝酸盐质量浓度为2.0mg/L时，血蓝蛋白含量显著高于对照组。

Abstract］ AIM:To investigate the role of nuclear factor κB in the induction of iNOS gene by TNFα and LPS in endothelial cells and the effect of antioxidant on the induction of iNOS. METHODS:Nitrite was determined based on Griess reaction. iNOS mRNA was analyzed using Northern blot. NFκB in the cell nucleole was detected with electrophoretic mobility shift assay.RESULTS:(1)NO production and iNOS mRNA expression induced by LPS and TNFα was blocked by pyrrolidine dithiocarbamate or N-acetylcysteine.

研究表明内皮细胞激活时iNOS表达的调控主要发生在转录水平。iNOS基因的启动子区域含有多个转录因子的结合位点包括NFκB、AP-1、NF-IL6，Oct-1等［2］，而核因子κB(nuclear factor κB， NFκB)被认为在多种参与炎症反应的蛋白质因子的基因调控中担任重要角色，因而可能是内皮细胞激活的调控中一个重要转录激活因子［2，3］。

A new method based on the spectrophotometric system of nitrite N and safranin\|T has been developed for the determination of nitrite in this paper.

研究了在酸性条件下，亚硝酸盐氮与番红 T体系的分光光度测定，提出了一种测定亚硝酸盐氮的新方法。

The results show that nitrite-N in the soil profile decreases gradually with increase of soil layer depth.

结果表明，随土层增加，土壤剖面硝态氮逐渐下降；长期连作烤烟，0~100 cm土层硝态氮含量明显高于玉米，在烤烟生长过程中，随着气温的升高，土壤硝态氮含量明显增加。

The characters and performance of the biofilm were studied. When the concentration of nitrite is 206.82 mg/L, the velocity of nitrification is 260 mg/L·d. The best performed bacteria, N-20, were identified as Nitrobacter sp.

实验得到了稳定的自养硝化生物膜；当NO-2浓度为206.82mg/L时，生物膜的稳定硝化速率可达260mg/L·d；经鉴定，硝化速率最高的N20菌株属硝化杆菌属(Nitrobactersp。)。

To compare the difference of drain and intake water then converse with biomass in sweetfish and walking catfish's grow-up pond. The ammonia-N, nitrate-N, nitrite-N and phosphate were 383.7, 208.99, 21.62 and 119.03 mg/kg in sweetfish's pond, respectively.

水中营养盐部分香鱼与胡鲇池换算流水量与生物量后，香鱼每增长1 kg，它所产生之氨氮、硝酸氮、亚硝酸氮及正磷酸酸盐的量分别为383.7、208.99、21.62和119.03 mg；胡鲇每增长1 kg则分别为68.76、5.72、2.44及13.80 mg。

The distributions of microbes in various physiological groups had bigger difference in the 5 soil types, n which, the proportions of ammonifying, nitrite, and denitrifying, aerobic dinitrogen fixed bacteria were relatively bigger and that of sulfate-reduction and inverse-sulfuration bacteria were relatively less.

土壤各生理类群微生物在5种类型土壤中的分布有较大差异，氨化细菌、亚硝化细菌、反硝化细菌和好氧固氮菌在5种类型土壤中占有的比例相对较大，硫化细菌和反硫化细菌相对较少。

Through boring and gathering water in natural reed wetland, the concentration of three kinds of nitrogen (nitrate-N, nitrite-N and ammonia-N) and the quantities of denitrifying bacteria in the soil of different depths were sampled and analyzed in the bloom period of reeds.

在芦苇生长旺盛阶段（3-5月），在芦苇湿地钻孔，聚水，取样分析了水中三氮含量及水孔不同深度土壤中反硝化细菌的数量。

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。