查询词典 nitrogen-free

B3LYP/aug-cc-pvDZ level of theory is applied to study the geometric structures, hyperconjugation and exchange repulsion of 13 isoelectronic equivalents of benzene obtained by successive replacement of CH groups by nitrogen atoms in benzene.

采用密度泛函理论的B3LYP方法在aug-cc-pvDZ基组上研究了13种苯及其含氮等电子体化合物的分子结构、能量和异构体相对稳定性，重点考察了含氮量对化合物含能性质的影响。

The result indicates that the hyperconjugation effect from lone pairs on nitrogen atoms to germinal N-N bonds can play an important role in the N-N bond length. The N-N bond length displays reverse dependence on the charge density in bond critical points obtained from AIM.

NBO分析表明N原子孤对电子到相邻的氮氮键的超共轭作用是影响氮氮键长变化的主要因素，AIM计算的氮氮键的键临界点电荷密度与键长呈反比关系。

BACKGROUND: Studies demonstrated that the decrease of nitrogen monoxidum activities can lead to the cyclic guanosine monophosphate decreased, which result in platelet hyperfunction, eventually induce glomerular thrombosis.

背景：研究表明，增龄机体血小板一氧化氮合成能力下降，导致环磷鸟苷水平降低，进而使血小板功能亢进，成为血栓易感状态。

Therefore they are all heightening that content of the blood sugar,FFA,and urea nitrogen. It may be a result of hyperirritability in environment change.

说明激素变化是导致体内代谢变化的直接原因，究其根源可能是乳牛生长环境因素的变化致使畜体产生应激反应所致。

Results:The early enteral feeding after burn injury was more effective to reduce the hypermetabolism response.The average of total urine nitrogen on PBD11,12,13,14 in EN were significantly lower than those of PN,REE on PBE4,8 in PN were significantly higher than that of EN.

结果：早期肠道营养明显降低严重烧伤高代谢，24 h尿氮排出在伤后11天后PN组明显高于EN组，伤后第4、8天PN组REE明显高于EN组。

SOFE can provide fuel calories for hypso-energy consumption after burn,modulate the metabolism,depress postburn hypermetabolism,retrieve the negative nitrogen balance,and reduce the body weight loss.

SOFE提供了烧伤后高热量消耗所需要的热能，替代蛋白质的分解，它还可以调节机体代谢状态，逆转烧伤后高代谢，降低高代谢造成的负氮平衡，缓解体重下降。

The increase after the nitrogen salt, had not promoted the hypha growth.

添加含氮盐后，并没有促进菌丝的生长。

The order of nitrogen contents in plant was leaf＞stem＞root＞hypocotyl.

正常浓度的污水能促进植株生长，无论是茎高生长还是生物量增长都明显大于对照组。

Hypoxanthine ; biosensor ; freshness of fish ; total volatile basic nitrogen; number of microbe colonies

次黄嘌呤；生物传感器；鱼类新鲜度；总挥发性盐基氮；细菌菌落总数

The study on the profile distribution and accumulation characteristics of organic carbon and total nitrogen in two typical marsh es in Sanjiang Plain showed that on the sediment profiles of Carex lasiocarpa marsh and Phragmites communis marsh , there existed distinct deposition horizon and illuviation horizon.

研究了三江平原2类典型湿地(毛果苔草沼泽和芦苇沼泽)沉积物剖面有机碳、全氮的分布特征与积累现状。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。