尿素氨

1大强度间歇训练后，尿中过氧化脂质水平和血尿素氨水平明显增加（p＜0.05），血红蛋白则出现明显的降低（p＜0.05）。

The observations are as follows : 1 After high-intensity intermittence training , the urinary MDA and blood BUN were significant increased ( p < 0.05 ), but the blood HB was significant decreased ( p < 0.05 ) .

热带地区砖红壤上不同土壤pH和含水量对尿素氨挥发的影响研究

Study on the Volatilization Difference of Ammonia from Latosols with Different Soil pH and Different Soil Water Content

试验结果显示：（1）低蛋白质氨基酸平衡饲粮使仔猪血浆挥发性盐基氨含量、血浆尿素氨含量和腹泻指数降低（P＜0.05或0.01）。

The results showed ,( 1 ) A A-balanced , low CP diets wereeffective ( P < 0.05 or 0.01 ) to reduce the diarrhoea score and the contents of plasma volatile basic nitrogen and urea nitrogen .

结论：非标记尿素氨呼气试验对于HPylori的临床诊断具有潜在应用前景，但呼气氨采集方法的优化设计以及HPylori临床诊断中呼气氨变化率的最佳判断值方面仍有待于进一步的研究工作。

CONCLUSION : Ammonia breath test is greatly valuable in the diagnosis of H pylori infection , but the method of breath ammonia sampling and the optimal cut-off ACR value may need further studying .

实践证明，装置设计是成功的，吨尿素氨耗降低了8kg，取得了明显的经济效益和环保效益。

Actual operation proves that the equipment design is successful , the ammonia consumption per ton of urea decreases by 8 kg , and notable social and economic benefits are obtained .

不同秸秆添加物对尿素氨挥发的影响

Effect of Straws on Ammonia Volatilization Loss from Urea

相同条件下，尿素氨挥发损失为28.0%，硫硝酸铵氨挥发损失为12.5%，比尿素少15.5个百分点。

And the percentage ammonia loss was 12.5 % from ammonium sulphate nitrate , while 28.0 % from urea the same condition .

变质岩砖红壤上发生尿素氨挥发最有利的土壤含水量为10%。

The soil water content 10 % is most advantageous to the loss quantities of ammonia volatility in the latosol from metamorphic rock .

增加惰气精洗器，采用内菱形蒸发洗涤器等回收设备，可使吨尿素氨耗降至580kg；

Adding rectifier of inert gas and using recovery equipment of inner rhombus evaporation scrubber etc. can make the ammonia consume per each ton of urea to be reduced to 580 kg ;

中压放空尾气中氨质量分数由改造前的20%降至5%以下，尿素氨耗降低约1.4kg/t，并使废水、废气的排放得到了彻底改善。

The mass fraction of ammonium in blow-down tail gas of the medium pressure system was decreased from 20 % to 5 % , ammonium consumption was decreased by 1.4 kg per ton of urea , and the discharge phenomena of waste water and waste gas were completely made better .

试验结果如下：（1）在相同土壤含水量的各种母质砖红壤上，随着土壤pH的上升，尿素以氨挥发形式损失的氮量增多，损失率增大。

In experimental scope , along with the soil pH rise , the quantity of volatilization of ammonia increases in latosol soils with same soil water content .

含DMPP抑制剂尿素的氨挥发特性及阻控对策研究

Ammonia Volatilization Loss Character of Urea with DMPP Addition and Its Controlling Strategy

利用室内氨挥发模拟系统和同位素15N示踪技术，研究高效尿素对氨挥发损失和氮素去向的影响。

Effects of high efficiency urea on the loss of ammonia volatilization and nitrogen fate were studied by the methods of ammonia volatilization model system and 15 N tracer technique .

改进结果表明：装置可稳定在低耗状态下运行，年平均吨尿素耗氨573kg，耗蒸汽0.93t。

The improvement result indicates that the plant can be stabilized operating under the condition of low consume , the annual average consume per ton of urea is 573kg / a for ammonia , and 0.39 t / a for steam .

尿素装置氨汽提塔工况的优化

Optimization of operating mode for ammonia stripper tower of urea device

缓释尿素中氨态氮挥发速率研究

Study on Volatilization Velocity of Ammoniac Nitrogen in Slow-release Urea

江苏南部地区稻麦两熟土壤中尿素的氨挥发损失

Ammonia volatilization from urea applied to the field of wheat and rice in southern Jiangsu Province

它们从皮肤的汗水中吸收尿素和氨，将其转化为对身体有益的氧化氮。

They feed off urea and ammonia in the sweat from the skin , turning them into nitric oxide , which is very good for the body .

针对目前小氮肥厂氨利用率较低的问题，阐述了减少合成氨自用氨、搞好合成氨装置及尿素装置氨回收、维持系统水平衡的具体措施。

Detailed measures to raise utilization rate of ammonia , such as to decrease the amount of self used ammonia , do better ammonia recovery , and maintain water balance in the system , are discussed .

分析了影响尿素装置氨汽提塔汽提效率的因素，并结合实际生产总结经验，优化操作，改善氨汽提塔工况，提高汽提效率。

The factors to influence the efficiency of ammonia stripper tower in urea device are analyzed . The operating mode of ammonia stripper tower is improved , the stripping efficiency is advanced by summarization of experience and optimization of operation .

尿素热解制氨技术在SCR脱硝中的应用

Application of urea pyrolysis to prepare ammonia technology into SCR denitrification

方法通过对pH、温度、包涵体蛋白浓度、尿素和精氨酸浓度及氧化还原对比率的定性定量分析，研究重组人ECSOD包涵体体外稀释复性的基本条件。

Methods The basic condition for dilution renaturation in vitro of recombinant human EC-SOD inclusion body , such as pH value , temperature , the concentrations of inclusion body protein , urea and arginine , as well as the ratio of reduced and oxidized thiol reagents , were optimized .

尿素厂高氨废水预处理-氨吹脱的试验研究

The Pretreatment of High Concentration NH3-N From Urea Factory-Blowing-off the NH3-N

尿素装置高氨耗原因初探及改进措施

Brief Analysis on High Ammonia Consumption in Urea Plant and Its Improvement

新尿素装置中压氨系统改造

Reformation of Medium Pressure Ammonia System in the Urea Plant

试计算氮在尿素及硫酸氨的质量百分率。

Calculate the percentage by mass of nitrogen in urea and ammonium sulphate .

优化操作降低尿素装置中压氨吸收器的氨损失

Optimize operation to decrease ammonia loss from medium pressure ammonia absorber of urea plant

高压变换气气提法尿素用于大型氨厂改扩的商榷

Recommendation of Using HP Shift Gas to Stripping Urea Production for Revamping of Large Ammonia Plant

阐述了尿素装置高压氨泵的结构及运行特点。

A presentation is given of the characteristics of the structure and operation of the high-pressure ammonia pump in urea production plant .

在培养发酵过程中，尿素、赖氨酸、蛋氨酸和酪蛋白水解物的氨态氮损失分别占粗蛋白质的72.9%、22.8%、55.2%和70.3%。

E. urea , lysine , methionine and casein hydrolysate were 72.9 % , 22.8 % , 55.2 % and 70.3 % ( DM ), respectively .