氮化作用

Calcium cyanamide could inhibit the wilt and root rot pathogens and diseases; S-H mixture could only inhibit the wilt pathogen and disease, but lime had no effect.

氰氮化钙可抑制萎凋及根腐病菌及其引起之病害，SH混合物则仅抑制萎凋病，而石灰处理则毫无抑制作用。

After esterification, the ethyl-2-chloro-3-phenylpropionate reacts with diethyl malonate under the catalysis of sodium ethylate, and we obtain the corresponding triethyl ester. The-benzylsuccinic acid is formed by the triethyl ester reacting with concentrate hydrochloric acid and taking place hydrolyzation and decarboxylation reaction at the same time. In order to avoid the formation of cinnamic acid, the sodium ethylate and diethyl malonate must be react sufficiently. The course has simple operation, inexpensive materials and better yield.

具体制备工艺为：首先以L-苯丙氨酸为原料采用重氮化方法得到-2-氯-3-苯基丙酸，再经酯化得到-2-氯-3-苯基丙酸乙酯后在乙醇钠催化作用下和丙二酸二乙酯缩合，发生SN2反应，得到相应的三乙酯，然后经水解和脱羧，得到-苄基丁二酸；在实验中乙醇钠要和丙二酸二乙酯充分反应，避免生成肉桂酸乙酯；该过程操作简单，原料便宜，产率较高，总收率可达到26.8%。

Oncology Fascicule of Foreign Medical once reported that Genistein combined with quercetin, sodium azide, dexamethasone can have synergistic effect; they respectively acts on different cell cycles, so the killing effect to cancer cells is improved.

国外医学卫生学分册》中报道Genistein分子弹与五羟黄酮、叠氮化钠、地塞米松联用均产生协同作用，因其各自作用于不同细胞周期，提高了对癌细胞的杀伤力。

Objectives To detect the methylation of P15(superscript INK4B) gene in patients with myelodysplastic syndromes and to investigate the demethylating effects of decitabine and arsenic trioxide (As2O3). Methods The bone marron mononuclear cells from 14 MDS patients were collected.

目的 检测骨髓增生异常综合征患者P15(上标 INK4B)基因甲基化状况；探讨5-氮杂－2'-脱氧胞嘧啶和三氧化二砷(As2O3)对MDS患者细胞的去甲基化作用。

In paper effect of oxygen and carbon action on minority carrier lifetime in thermal process of mc-Si cell and properties of Si_3N_4 film and effects of antirefle-ction and passivation were studied.

为此本文重点研究了多晶硅片在电池制造热工艺中氧碳的行为及其对少子寿命的影响；并研究了氮化硅薄膜的性能及对多晶硅电池的减反射及钝化作用。

The effects of high-energy ball milling Including the fining and mechanochemical on the carbothermal reduction nitridation of alumine were investigated.

研究了高能球磨氧化铝的细化和机械力化学作用及球磨对碳热还原反应合成氮化铝的影响。

The carbothermal reduction nitridation reaction was promoted greatly after the milling of alumina for 20 hours.

研究了氧化铝球磨对碳热还原反应合成氮化铝的作用。

The effects of high-energy ball milling including the fining and mechanochemical on the carbothermal reduction nitridation of alumina were investigated.

研究了高能球磨氧化铝的细化和机械力化学作用及球磨对碳热还原反应合成氮化铝的影响。

The factors govern the properties of nitrided stainless steel and the effects of main parameters on nitriding have been investigated.

通过考察离子氮化后奥氏体不锈钢综合性能的影响规律，探讨了主要参数的作用，了解其相互关系。

By means of sliding-wear test of malleable iron before and after arc-lighten ion nitrogenation, this article studies on the effect ho...

同时，说明了辉光离子氮化方法对提高其表面层耐磨性能的作用和效果。

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。