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Based on the coordinate bonding theory, a hydrophobic expansible polytetrafluoroethylene membrane was modified to make it hydrophilic.

采用配位键合理论对疏水性膨体聚四氟乙烯膜膜进行亲水改性,并对其用于水过滤过程的性能进行了研究。

Fourth: According to the ecological protection and planning of shanghu urbanwetland park lakeshore line, we found out five kinds of protected wetlandslakeshore:bank revetment of gentle slope water, bank revetment block stone or pine,bank revetment of Natural flora, bank revetment of hydrophile grandstand, bankrevetment of field stone.

4在对尚湖城市湿地公园岸线的生态保护规划基础上,研究出五种适合城市湿地公园的护岸形式:缓坡入水护岸、块石或松木桩护岸、大卵石护岸、自然植被护岸、亲水看台护岸。

In order to improve their water solubility, 4"-fatty amido-3"-sodium carboxylate azobenzene-4-sodium sulfonates were synthesized. They are azo compounds with two hydrophilic groups of carboxyl and sulfonyl. They decrease the surface tension in dilute solution slowly, and show some surfactivity, but are not surfactants. The probable reason is their relative strong hydrophile. Furthermore, their colors are not fresh and far from our destination.

为了改善其水溶性,改用对氨基苯甲酸为原料合成了4′-脂肪酰氨基-3′-羧酸钠偶氮苯-4-磺酸钠盐,以偶氮结构为主的亲水基团上连有羧酸基和磺酸基两个亲水性较强的基团,但可能由于其亲水性太强,在稀溶液中只能缓慢地降低溶液的表面张力,具有一定的表面活性,但不是表面活性剂,而且颜色不鲜艳,距离我们的目标较远。

It is found that,through sliding zone soil mineral component and water-soil interaction analysis,the principle reason of landslide is that coal measure strata turves soil contains certain proportional hydrophilic mineral ,and its mechanical index will fall greatly after water-soil interaction.

以京珠高速粤境北段k18+170~k18+225滑坡为例,研究了煤系地层滑坡机理,通过对滑动带土的矿物组成及其物理力学性质分析,发现该类边坡滑坡的主要原因是煤系地层中的泥炭土含有一定比例的亲水矿物,在水的作用下力学性质发生大幅度降低。

Depending on the structure the polymer may be hydrophilic or hydrophobic, stiff or flexible, crystalline or amorphous, reactive or unreactive.

根据各自的结构不同,聚合物可以是亲水的或憎水的,硬的或软的,晶体状的或非结晶质的,易起反应的或不易起反应的。

This product is to retain high-grade amino-silicone soft, smooth feel, based on completely overcome the general amino-silicone to treat fabric to make it extremely hydrophobic and yellowing of the problems so that the fabric to keep water absorption and low yellowing, while is also different from commercially available hydrophilic softener with good solid and washability.

本品在保留高档氨基硅油柔软、滑爽手感的基础上,彻底克服了一般氨基硅油处理织物时使其变得极其疏水且泛黄的问题,使织物保持吸水性和低泛黄,同时还区别于市售亲水柔软剂,有着良好的牢固性和耐洗性

After centrifugation, the extracts were separated on HILIC column by using acetonitrile-water as mobile phase. The analytes were identified and quantitated by LC-tandem MS under the positive/negative electrospray ionization and multiple reaction monitormode. The calibration curves showed good linearity in the range of 25-5000 μg/kg for melamine and cyanuric acid, and 50-10000 μg/kg for ammeline and ammelide. The limits of detection and limits of quantification were in the range of 5-20 μg/kg and 50-100 μg/kg, respectively.

牛奶样品直接用乙腈超声波提取;奶粉样品先用水溶解后再加乙腈超声波提取,高速离心后以乙腈-水为流动相,采用亲水作用色谱柱分离这4种化合物,在电喷雾正、负电离切换多反应监测模式下进行定性与定量分析,三聚氰酸一酰胺与三聚氰酸二酰胺含量在50~10000μg/kg之间、三聚氰胺与三聚氰酸在25~5000μg/kg之间,均获得良好的线性。

The bathochromic shift was mainly due to the limitation of rotational movements of the dye. The rigidity of the silica surface restricted the freedom of the molecules. The lower polarity of microenvironment at the silica/water interface than that in aqueous environment should also make a contribution to the phenomenon.

通过对其本体、界面荧光光谱的分析,观察到R6G分子在亲水石英/水界面上出现5 nm红移,红移的原因主要是染料分子旋转运动受到限制,石英表面的刚性限制了分子的自由度,同时,石英/水界面更低的极性也对红移产生影响。

It was found that the quantity of non freezable bound water adsorbed in polymer depends on the hydrophilic site nature and its hydrogen bonding capacity.

亲水聚合物中,结晶结合水在低于Tg温度下成核,在高于Tg温度时增长。

The result of immobilization showed that hydrophile membranes were more advantageous than hydrophobe ones to act as immobilization carrier. Crosslinking organophosphorus hydrolase by glutaraldehyde on polyethersulfone membrane is a simple and practical immobilization method. An appropriate amount of bovine serum albumin and crosslinker is necessary to get a good result of immobilization. In the biodegradation of methyl-parathion through enzyme membrane reactor, the effect of immobilized enzyme amount, flow rate of peristaltic pump, pH of the feed, and the methyl-parathion concentration on biodegradation rate was studied. It was shown that the biodegradation rate increased with immobilized enzyme amount and substrate concentration. Biodegradation rate didn't increase when the folw rate of the peristaltic pump was larger than 7 ml/min.

然后,研究固定化酶降解甲基对硫磷,从不同材料的膜载体固定有机磷水解酶的比较中,发现亲水膜比疏水膜适合作固定化酶载体;在此基础上,将有机磷水解酶固定在聚醚砜微滤膜上,并制成酶膜生物反应器,用于降解甲基对硫磷;戊二醛化学交联法固定时,酶液与10%牛血清白蛋白溶液的比例在3:1~2:1,与交联剂的比例在7:2~7:4范围内,固定化效果较好,并发现牛血清白蛋白和膜载体有降低酶活损失的作用;将固定化的酶膜装于酶膜反应器降解甲基对硫磷,实验结果表明:反应器的降解速率与固定化酶量呈正比,也随底物浓度的增加而加快,当流速低时,降解速率随流速增大而加快,到7ml/min以上时,降解速率不随流速脑黾佣洌到獾淖畹团ǘ任?

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推荐网络例句

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。