亲水的

Novel chitosan derivative with long alky groups as the hydrophobic moieties and carboxymethyl groups as the hydrophilic moieties was synthesized. The chemical structure of N-octyl-O, N-carboxymethyl chitosan was characterized via FTIR, 1H NMR and elemental analysis. The physical properties were analyzed with wide angle X-ray diffraction and differential scanning calorimetry.

以天然可生物降解的壳聚糖为原料，通过在壳聚糖6位羟基上引入羧甲基，在2位氨基上引入疏水烷基链，制得N-辛基－O，N-羧甲基壳聚糖两亲性衍生物，分别用FTIR、1H NMR和元素分析等技术对其结构进行表征，用广角X射线衍射和差示扫描量热法对具物理性质进行分析，并考察其在各种溶剂中的溶解性能及其对难溶性药物的增溶能力。

Target compounds have been synthesized by condensation of the aromatic nucleus and amino heterocylcle with acyl isocyanates or acylisothiocyanates in absolutely anhydrous and aprotic solvent.

为了寻找高活性的农药品种，利用生物等排原理和亚结构连接法，对脲类化合物的母体结构进行了修饰，将芳氧羧酸类及吡唑环引入酰基脲母体结构中，利用酰基异氰酸酯与杂芳环胺类化合物在无水非质子溶剂中发生亲核加成反应，合成了四个系列21种新的酰基脲类目标化合物。

And fish lice, Argulus sp. Induced spawning using only photothermal control has not occurred, but GnRHa implants hae been successfully used to induce oulation and allow strip-spawning. In addition, during 1997, photothermal conditioning coupled with 100 mg GnRHa implants resulted in successful tank-spawning. During a 99-day period, eggs were collected on 64 days and lowering temperature was shown to inhibit spawning.

和 Argulus sp。，产卵的诱导采用光照控制和GnRHa注射的方法，并成功地试亲鱼排卵和进行流水孵化。1997年中，光照控制和100mg GnRHa注射所得栾成功地进行了静水孵化。

Surface activity of alkaline lignin was improved by alkylation with dodecyl bromide at 170 ℃,3 h.

碱木质素因其分子上缺乏亲油亲水性均较理想的官能团，而在有机相和水相中的溶解度均不高，表面活性也很差[1] 。

In the present study,a series of novel amphiphilic graft glycol chitosan were synthesized by introducing different hydrophobical groups.

本文选择乙二醇壳聚糖作为母体聚合物，通过引入不同的疏水基团，合成了一系列具有不同物理化学性质的两亲性乙二醇壳聚糖聚合物。

The results showed that resistant gene Ht in F1 heterozygote was the most effective on controlling spots number and size; all monogene in heterozygote could produce spore by moisture culture and resistant gene Ht1 was the most effective; resistant gene Ht1 in medium level, Ht3 in high level, and Ht in low level of vertical resistance of heterozygote, were the most effective on controlling spots spread; while Ht2 in high level of vertical resistance of heterozygote was the most ineffective on controlling spots spread; and all resistant monogene in heterozygote showed superior to their parents on controlling incubation period and gene Ht was more significant than other genes.

结果表明，抗性单基因Ht处于F1代杂合状态时，控制病斑数和病斑面积的效应最强；单基因处于杂合状态时，湿培48h病斑全部能产生分生孢子，且处于同一水平抗性杂合状态时，Ht1控制产孢量的效应最强；Ht1处于中水平、Ht3处于高水平和Ht、处于低水平垂直抗性杂合状态下，控制病斑扩展效应最强；而Ht2处于高水平垂直抗性杂合状态下，控制病斑扩展效应最弱；抗性单基因处于杂合状态下，控制潜伏期多表现超亲现象，Ht控制病害潜伏期比其它单基因显著。

Amino-monomethoxypoly(ethy1ene glycol)(mPEG-NH2) was synthesized based on the principle of Gabriel synthesis.Monomethoxypoly(ethy1ene glycol) tosylate was prepared at first,and then reaction with potassium salt of phthalimide as nucleophile to produce the monomethoxypoly(ethy1ene glycol)phthalimide derivative.

摘 要：首先合成了单甲氧基聚乙二醇对甲苯磺酸酯，然后根据盖布瑞尔合成法原理，以邻苯二甲酰亚胺钾盐为亲核试剂与mPEG-OTs反应，生成单甲氧基聚乙二醇的邻苯二甲酰亚胺衍生物，mPEG-PI与水合肼反应肼解生成伯胺，合成了一端为氨基的单甲氧基聚乙二醇(mPEG-NH2)。

The Pro Edition capsule collection features in the first delivery only., including water-repellent and stain-resistant pants, jackets, knits and jersey tops, also with moisture management qualities.

亲版胶囊收集的特点，在首批次交付时间只，包括憎水和染色抗裤，外套，针织物和新泽西州的上衣，也与水分管理素质。

The present invention relates to a process for treating a lipophilic fluid contained in an emulsion of water and lipophilic fluid.

本发明涉及处理包含在水和亲脂流体的乳液中的亲脂流体。

Results and Conclusion: Self-emulsifying drug delivery system will have a very good prospect in pharmaceutics for these poorly soluble in water and lipophilic drugs.

结果与结论：自乳化药物传递系统对亲脂性和水难溶性的药物是一个非常有前景的新型载体系统。

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