氨氮

Objective: To investigate the inhibitory effect of a new highly se lective inducible nitric oxide synthase inhibitorNGnitroargininelysine tripeptide on cNOS and iNOS indu ction .

目的：研究硝基精氨酸赖氨酸三肽对组成型一氧化氮合酶和诱导型一氧化氮合酶的抑制程度。

N - Fmoc - L - B - homoglutamine and N - Fmoc - L - B - homoasparagine have been prepared by anidt - eistert synthesis from commercially available N - Fmoc - L - a - glutamine and Na - Fmoc - Nr - trityl - L -asparagine.

描述了应用Arndt-Eistert反应合成两种含酰胺基的N-Fmoc-L-β-氨基酸的方法，讨论了在Wolff重排过程中，N-Fmoc-L-α-谷氨酰胺重氮甲基酮和N-Fmoc-L-α-天冬酰胺重氮甲基酮的各自特点及反应过程中生成的副产物。

The results indicated that COD,the contents of suspension,ammoniated nitrogen and nitrated nitrogen were much lower than those of mono...

结果表明，循环水养殖系统内虾池水层悬浮物数量、COD值、氨态氮和硝酸态氮含量比对照组对虾单养池明显降低(P·01)。

Firstly, the dissertation chose the species of additives and decided the concentrations of addition. Then experiments had been carried out by using corn stover ensiled with those additives under ideal ensiling condition. After each storage and fermentation period, silage was removed from silo tin and analyzed for DM, pH, DM digestibility, NDF digestibility, organic acid composition and content, DM Recovery, silage composition, ammonia-N-to-total-N ratios of silage. Those results had been used to evaluate the effects of those additives on corn stover silage.

课题首先根据查阅的大量文献资料，确定要研究的添加剂种类和添加剂量，然后在玉米秸秆原料中添加所选的添加剂，在适宜的青贮条件下进行青贮饲料的调制试验，将经过一定发酵时间的青贮饲料开封后，通过测定玉米秸秆青贮饲料的干物率、pH值、有机酸含量及组成、干物质消失率、NDF瘤胃降解率、干物质回收率、青贮化学成分、氨态氮占总氮的比例等指标，这些测定分析结果用来确定不同添加剂对玉米秸秆青贮饲料质量的影响。

The results show that the BST is a nice nitrogenous fertilizer resources and to some extents,equal and superior to traditional nitrogenous fertilizer urea and sulphuric acid ammonia.

结果表明，BST是很好的氮肥资源，等同于或某种程度上优于尿素和硫酸铵。对土壤的理化性质、氨态氮、硝态氮含量以及对作物吸收Ca，Mg，K等养分和生长发育的影响与常规氮肥相似。

In 2004, RITS developed a thermal plasma system for medical waste treatment with a capacity of 100 kg/h. Recently, some improvements had been carried out on its main furnace structure and waste feeder, and a experimental investigation on microwave-AC denitrification technology had also been conducted, which was expected to replace previous AC-NH3 denitrification technology. The preliminary results showed that this new technology had a promising foreground.

深圳清华大学研究院在2004年发展了处理量为100 kg/h热等离子体医疗垃圾处置系统，在该系统的基础上，最近再次对主炉结构和自动上料装置进行了结构优化，并对微波-活性炭法脱氮技术进行了实验研究，以期替代原来的活性焦-氨法脱氮工艺，初步的结果表明该技术拥有令人鼓舞的前景。

To study the state of calcium ionophore, the effect of homocyeteine on the activites of eNOS and of contents of NO in HUVEC.

研究同型半胱氨酸在钙离子导体（A23187）刺激下，对内皮细胞内皮型一氧化氮合酶活性及一氧化氮含量的影响及机制。

Pseudoacacia and Caragana were significantly (P.05) better than A. fruticosa in pH, lactate content and ammonia-N/total-N ratio, so that their fermentation quality was better. In addition, they were high in crude protein and low in neutral detergent fiber and acid detergent fiber, showing that they were abundant in nutritive components. A. fruticosa was the inferior silage in every evaluation in the experiment. The mixed silage of R. pseudoacacia and Caragana was the best, and the mixed silage with A. fruticosa was not recommendable. There were no obvious changes in the time before and after silaging in nutritive value of these three kinds of plants, it showed that the silage technology was good.

结果表明：刺槐、柠条青贮伺料在pH值、乳酸含量、氨态氮／总氮比值方面均显著地(P.05)好于紫穗槐处理，发酵品质良好，且粗蛋白含量高，中性洗涤纤维和酸性洗涤纤维含量低，营养价值高；而紫穗槐青贮品质在各项评定中均较差；在混合青贮中刺槐和柠条青贮混合品质最佳，与紫穗槐混合的两种混合饲料品质较差；刺槐、柠条、紫穗槐在青贮前后营养品质均无明显降低，青贮饲料品质等级均为良好，青贮效果较优。

The pH value of silages was all lower than 4.0 and the ratio of ammonia nitrogen to total nitrogen was all lower than 5.0, which improved the quality that all the silages in experiment were good.

经不同切碎方式的各组青贮饲料的有机酸含量均无显著差异（P〉0.05），pH值均在4.0以下，而且氨态氮与总氮的质量比也均在5.0以下，达到了优质青贮饲料的标准，虽然各青贮饲料的粗蛋白、粗灰分和可溶性碳水化合物含量有显著差异（P〈0.05），但均为优质的青贮饲料。

Results showed that there were no evident effects of different mechanical processes on the organic acid content(P＞0.05). The pH value of silages was all lower than 4.0 and the ratio of ammonia nitrogen to total nitrogen was all lower than 5.0, which improved the quality that all the silages in experiment were good. Though the effects of three different mechanical processes on the CP, CA and WSC contents of silages were evident, the silages were all excellent.

经不同切碎方式的各组青贮饲料的有机酸含量均无显著差异(P＞0.05)，pH值均在4.0以下，而且氨态氮与总氮的质量比也均在5.0以下，达到了优质青贮饲料的标准，虽然各青贮饲料的粗蛋白、粗灰分和可溶性碳水化合物含量有显著差异(P＜0.05)，但均为优质的青贮饲料。

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。