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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。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。