查询词典 nitrogen

Using a comparative and simulative approach, this study quantitatively explored the effects of macrobenthos (Ilyoplax deschampsin and Corbicula fluminea) on the exchange of nitrogen across the sediment-water interface and the early diagenesis of nitrogen in tidal sediments from the Yangtze Estuary....

研究表明，谭氏泥蟹主要通过掘穴活动增加沉积物-水-气三相接触界面，促进沉积物中的无机氮(NH+ 4- N、NO- 2 -N和NO- 3- N)向上覆水体中扩散，并且也加快了沉积物中氮的氨化作用和硝化作用速率，而河蚬则主要通过生理活动机制影响潮滩生态系统内氮素的迁移转化过程。

The absorption of root system was the main sources of nitrogen in the plant.The effects of matrix ventilation on the abaorption,transportion and metabolism of nitrogen in the root system of cucmber were discussed deeply.The results showed that contents of ammonium,nitrate,free amino acids and soluble protein in cucumber roots were higher in G1 treatment.Contents of ammonium,nitrate and free amino acids in cucumber roots were the trend of the dropping after the first rising in F1 treatment,but contents of soluble protein was lower11.03%than that of the control.

根系吸收是植物体内氮素的主要来源，本研究深入探讨了基质通气状况对黄瓜根系氮素吸收、运输和氮代谢的影响，结果表明G1通气处理根系的铵盐、硝酸盐、游离氨基酸和可溶性蛋白含量均较高；非通气处理(F1处理)根系内铵盐、硝酸盐和游离氨基酸含量呈先升高后降低的趋势，而可溶性蛋白含量始终较低，比对照降低11.03%。G1处理根系硝酸还原酶、亚硝酸还原酶、谷草转氨酶、谷丙转氨酶、谷氨酰胺合成酶活性均较高；而F1处理的酶活性在处理末期显著降低，其中谷氨酰胺合成酶活性比对照降低33.33%。

Results showed that using nitrogen increased nitrogen cumulate, grain yield, protein content, and grain protein yield.

结果表明，施用氮肥提高了小麦植株的氮素积累量、子粒产量、蛋白质含量和蛋白质产量。

Results On postoperative day 10, the cumulative nitrogen balance and the level of plasma fibronectin was significantly higher in rhGH group than in the placebo group (P 0.05). Furthermore, on 4 d and from 6 d to 9 d after operation, daily nitrogen balance was higher in rhGH group than in control group(P 0.05). Mean blood glucose levels were significantly higher in the rhGH group from 3 d to 6 d after operation (P.05). But hyperglycemia could be well controlled by insulin treatment.

结果 术后第10 d，rhGH组累积氮平衡和血浆纤维连接蛋白水平优于对照组（p＜0.05）；术后第4 d和6～9 d，rhGH组每日氮平衡均优于对照组（p＜0.05）；rhGH组治疗期间血糖水平升高，但程度较轻，可为胰岛素有效控制，未观察到严重并发症发生。

The results showed that nitrogen oxide was strongly deoxidized to nitrogen by iron; Petroleum coke char and CO could promote the heterogeneous reaction of Fe and NO, deoxidize iron oxides, and prolong the active time of iron; while limestone had little effect on the heterogeneous reaction.

结果表明：Fe对NO有很强的还原作用；石油焦焦炭和CO对Fe与NO之间的多相反应具有很强的促进作用，可还原Fe的氧化物，延长Fe的作用时间；而石灰石对Fe与NO之间的多相反应几乎没有作用。

The extent of nitridation is evaluated by the nitrogen content determined by a LECO Nitrogen/Oxygen determinator.

采用氮/氧分析仪测定产物氮含量，评价氮化反应程度；以BET氮气吸附法测定比表面积，分析粉体活性；以扫描电镜分析样品表面形貌；以热重分析仪测定碳含量，X射线能谱仪估计元素组成。

In the same depth, the content of total nitrogen of broad-leaved deciduous forest in 0~10 cm depth is maximum ,and the average total nitrogen of the bamboo forest is maximum in 10~20 cm and 20~30 cm. The available phosphorus content of broad-leaved deciduous forest is minimum, and the available phosphorus content of coniferous forest is minimum, the deviancy is very big, which is mainly related to the human being's activities and the way of soil usage.

同一土层深度，落叶阔叶林在0~10cm土层全氮含量最高，而毛竹林在10~20cm和20~30cm土层全氮含量都超过落叶阔叶林，使得毛竹林在土壤平均全氮含量为最高；各种森林类型中以阔叶林尤其是落叶阔叶林的速效磷含量最高，而针叶林的速效磷含量最低，空间变动性很大，这主要和人类活动及土壤的利用方式有关。

The changes in phase structure and Curie temperature of the Sm2Fe17 compound after nitrogen absorption were studied by using X-ray diffraction, differential thermal/thermo-gravimetric analyzer and magnetic measurement. The results of X-ray diffraction showed that the diffraction peaks of the Sm2Fe17 compound shifted toward lower angle after nitrogen absorption, and the characteristic peaks of α-Fe were observed. This showed that the unit cell of Sm2Fe17 expanded, the compound was decomposed to a certain extent and the characteristic peaks of α-Fe appeared.

通过X-射线衍射、差热－热重联用仪以及磁测量等手段，研究了Sm2Fe17化合物吸氮后的相结构及居里温度的变化行为。X-射线衍射表明，吸氮后Sm2Fe17化合物的衍射峰向小角度方向偏移，并且出现了α-Fe的衍射峰，这说明吸氮后化合物的晶胞有所膨胀，并且化合物有一定的分解，产生了α-Fe。

Nitrogen leaching to the groundwater is one of the major nitrogen loss ways in dry land farming systems,and contributes to a large extent in groundwater pollution.

渗漏流失是旱地农田氮素流失的主要途径之一，也是引起地下水污染的重要原因。

It comprises following steps: dissolving cross linker, functional monomer, mode molecule and initiator into pore-generating agent, getting mixing solvent; hypersonic de-gassing the mixing solvent; venting nitrogen after even mixing, sealing at nitrogen condition or vacuum condition; proceeding polymerization reaction, employing heat initiation for molecule engram polymer; grinding got molecule engram polymer after polymerization, sifting and removing mode molecule with organic solvent, checking with high efficiency liquid chromatography- ultraviolet until there is no mode molecule; vacuum drying and getting final product.

具体为：首先将交联剂、功能单体、模板分子和引发剂溶解在致孔剂中，得到混合溶剂；将混合溶剂超声脱气；混合均匀后，通入氮气，氮气状态或抽真空状态下密封；进行聚合反应，分子印迹聚合物采用热引发；聚合反应结束后，将合成的分子印迹聚合物取出研磨、过筛后用有机溶剂除去模板分子，通过高效液相色谱-紫外检测，直到检测不到模板分子；将除去模板分子的聚合物，真空干燥，得到利血平特异的分子印迹聚合物。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。