环丙烷

The wastewater containing epichlorohydrin is high toxic and hard to be biodegraded, which is not fit for biological treatment. The oxidation process of Fenton reagent was put forward.

环氧氯丙烷废水毒性强、生物降解性差，不适合用一般的生物方法处理，提出Fenton试剂氧化处理的方法。

The effects of various operational conditions on the activity of surfactant-coated lipase for catalyzing the transesterification of DMC and phenol were investigated in detail.

环氧丙烷改良的表面活性剂包衣脂肪酶在催化酯交换合成DPC的反应中表现出良好的活性和选择性。

To study the relationship between the "tail" structure and the characteristics of Gemini surfactants, a new gemini surfactant CH(subscript 2s)-αω-Bis (dehydroabietyihydroxypropyltetramethylethyldiammonium Chloride) here s=2, has been synthesized. Dehydrogenated rosin as hydrophobic "tails" in the structure. The affections of reacttants ratio, reaction temperature and time on the yield of aimed compound have been discussed.

研究了Gemini表面活性剂中疏水&尾巴&结构对性质的影响，以脱氢松香酸和环氧氯丙烷为原料合成了中间体3-脱氢松香酰氧－2-羟丙基氯，再与四甲基乙二胺反应，得到1种以脱氢松香酰基为疏水链&尾巴&的对称Gemini型双季铵盐阳离子表面活性剂：二氯化－N，N'-二（3-脱氢松香酰氧－2-羟丙基）四甲基乙二胺。

To study the relationship between the hydrophobic "tail" structure and thecharacterizations of Gemini surfactants, a new gemini surfactant CsH2s-α,ω-bis(dehydroabietylhydroxypropylteteramethylethylammonium Chloride),here s=2, wassynthesized. Dehydrogenated rosin as hydrophobic "tails" in the structure. The impact factorsin the two steps are discussed.

为研究gemini表面活性剂中疏水&尾巴&结构对性质的影响，本论文以脱氢松香酸和环氧氯丙烷为原料合成了中间体3-脱氢松香酰氧-2-羟丙基氯，再与四甲基乙二胺反应，得到一种以脱氢松香酰基为疏水链&尾巴&的对称gemini型双季铵盐阳离子表面活性剂：二氯化-N，N′-二(3-脱氢松香酰氧-2-羟丙基)四甲基乙二胺。

High salt; Domesticates; biomembrane; Epoxypropane

高盐； 驯化；生物膜；环氧丙烷

Chloro 2 hydroxypropyl trimethyl ammonium chloride an etherizing agent ,for modified starch, was synthesised from epichlorohydrin.

以环氧氯丙烷为原料合成了 3-氯- 2 -羟丙基基三甲基氯化铵，后者作为改性淀粉的醚化剂。

Kelch-like ECH-associated protein-1 (Keap1) normally sequesters Nrf2 in the cytoplasm in association with the actin cytoskeleton, but upon oxidation of cysteine residues Nrf2 dissociates from Keap1, translocates to the nucleus and binds to ARE sequences leading to transcriptional activation of antioxidant and phase II detoxifying genes.

在正常情况下，Kelch样环氧氯丙烷相关蛋白-1 (Kelch-like ECH-associated protein-1， Keap1)可将Nrf2与肌动蛋白细胞骨架一起收集在细胞质内，但是在半胱氨酸残基发生氧化的情况下，Nrf2和Keap1脱离，进入细胞核并与ARE结合，从而激活多种抗氧化基因和II相解毒基因的转录。

Kelch-like ECH-associated protein-1 (Keap1) normally sequesters Nrf2 in the cytoplasm in association with the actin cytoskeleton, but upon oxidation of cysteine residues Nrf2 dissociates from Keap1, translocates to the nucleus and binds to ARE sequences leading to transcriptional activation of antioxidant and phase Ⅱ detoxifying genes.

在正常情况下，Kelch样环氧氯丙烷相关蛋白－1(Kelch-like ECH-associated protein-1， Keap1)与Nrf2耦联，并与肌动蛋白细胞骨架结合被锚定于胞浆，但是在半胱氨酸残基发生氧化的情况下，Nrf2和Keap1解耦联，进入细胞核并与ARE结合，从而激活多种抗氧化基因和Ⅱ相解毒酶基因的转录。

Light-coloured varnishes were prepared by etherification of urushiol-formaldehyde condensates with epichlorohydrin. They gave clear paint films in pale colour. The varnishes blended well with various pigments and exhibited excellent properties similar to those of the original Chinese lacquer -"the monarch of the coating". No vesicating action on human body was observed.

用环氧氯丙烷醚化方法成功地制备的浅色生漆，涂膜透明，颜色浅，能和多种颜料很好调合，充分发挥其色彩，保持了&涂料之王&—生漆的基本优点；在漆器上应用，施工方便，效果良好，对人体无过敏反应。

A novel chiral block copolymer PCys-b-PPO-b-PCys bearing Leucine in the side chain was synthesized for the first time.

首次合成了侧链带有手性基团的聚半胱氨酸－b-聚环氧丙烷－b-聚半胱氨酸嵌段共聚物。

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。