氨氮

The activities of nitrosification and anaerobic ammonium oxidation of both activated sludge and biofilm also were studied. Results showed that the nitrosification rate of activated sludge was 2.89 times than biofilm. AOB was the dominate bacteria in activated sludge.

单级自养脱氮系统中的活性污泥及生物膜样品均具有亚硝化活性，其中活性污泥最大比氨氧化速率为0.234mgN/mgVSS·d，生物膜为0.081mgN/mgVSS·d，活性污泥亚硝化活性是生物膜的2.89倍左右。

The results indicate that the high efficiency and stable performance of shortcut nitrogen removal in MBR-PBBR process is attributed to the predominance of functional microbiology Nitrosomonas eutropha during the period of operation,which occupies over 54%of total bacteria.However,large amount of organic carbon can destroy the predominance of N.eutropha,whose proportion decreased to 31%at TOC/N=0.3.The diversity of microbial community in MBR increases along with operating time.

结果发现，生物强化的MBR-PBBR工艺能实现相对稳定和高效的捷径生物脱氮，主要归功于MBR中的功能微生物Nitrosomonas eutropha在运行过程中始终保持优势地位，占全菌数的比例大于54%；然而，当外加有机碳源较高(TOC/N≥0.2)时，可动摇氨氧化菌的优势地位，N.europha占全菌数的比例在TOC/N=0.3时下降至31%。

Valine and nitroxyl functional group were introduced into amino-substituted TPP respectively, and photocytotoxicities of the resulting porphyrins were tested.

以单氨基TPP为原料，分别将缬氨酸、氮氧自由基衍生物引入TPP分子，初步考察了两种TPP衍生物对肿瘤细胞和正常细胞的光毒性。

Relating to an amine or other chemical compound containing an NH2group combined with a nonacid organic radical.

它还会同氧反应生成氮的氧化物，而且当在有催化剂存在时它会同氢反应生成氨。

Starting from 4-androstenedione, three novel 3-oxo-4-aza-5-androstene-17-oxime derivatives 7, 8 and 9 were synthesized through oxidation ring cleavage, amination ring closure, oximation,and substitution .

以4雄烯二酮为起始原料，经过氧化开环、氨解闭环、肟化、取代等4-步反应，合成了3个新的3-羰基-4-氮杂-5-雄甾烯-17肟衍生物7、8和9，并用质谱、1HNMR、13CNMR等测试手段对目标化合物的结构进行了表征

The CFb in blank control group was added with IMDM containing 10% FBS and those in Ang Ⅱcontrol group with Ang Ⅱ.The CFb in the 3 test groups were induced with Ang II,then added with Tau at dosages of 40,80 and 160 mmol/L respectively. Determine the proliferation of CFb by MTT method, the collagen content by oxyproline kit, the transforming growth factor- TGF-β1 (TGF TGF-β1) content by ELISA, the cell cycle by flow cytometer, the CFb NO content by nitrate reductase method, the iNOS activity by spectrophotometry, and the expression of iNOS protein by IFA.

胰酶消化法分离培养新生大鼠CFb，用Ang Ⅱ诱导促进其增殖，采用MTT法检测细胞增殖；羟脯氨酸试剂盒检测胶原含量；ELISA法测定转化生长因子β1(TGF-β1)蛋白的含量；流式细胞仪检测细胞周期；硝酸还原酶法、分光光度法和免疫荧光法检测CFb NO含量、一氧化氮合酶活性和iNOS蛋白的表达。

AIM: To study the effect of sesamin on expression of inducible nitric oxide synthaseand nitrotyrosinein rat liver tissue with metabolic syndromic hepatic steatosis.

目的： 观察芝麻素对代谢综合征性脂肪肝大鼠肝组织诱导型一氧化氮合酶及硝基酪氨酸表达的影响。

The vasomotion was induced by noradrenaline in vivo, then the changes of vasomotion after injecting SI and Na-monomethyl-L-arginine （L-NMMA, a NO synthase inhibitor） were measured respectively on a TV monitor using a TV camera mounted on the microscope, and the influence of L-NMMA on effect of SI was also observed.

在活体情况下运用去甲肾上腺素（noradrenaline，NA）血管运动诱导法诱导出血管运动，分别观察静脉注射N^G-单甲基-L-精氨酸（NG_monomethyl.L-arginine，L-NMMA）、SI后血管运动的变化及应用一氧化氮合酶抑制剂L-NMMA对SI作用的影响，摄录结果于监视器上用暂停功能测量。

Methods Male SD rats underwent WIR stress for 2,4 and 8 hours. Ulcer index of stomach was chedsed by Guth method, nitrite production was measured by Greiss assay, nitric oxide synthase activities and L-arginine transport rate were determined by isotope tracer method.

大鼠浸水－束缚应激2、4和8 h，以胃溃疡指数作为应激损伤的标识，采用Greiss法测定血小板孵育液中亚硝酸盐NO2(上标-含量；同位素法测其一氧化氮合酶活性和L-精氨酸转运量。

Methods MTT was used to study the proliferation of A375 human melanoma cell. Tyrosinase activity was measured by zymologic method. The melanin was detected by its absorption at 475nm.

方法四甲基偶氮唑蓝法测定验方对细胞增殖的影响，用酶学方法测定对酪氨酸酶活性的影响，475nm比色法测定验方对黑素含量的影响。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。