氨基

Amino desacetoxycephalosporanic acid (7 - ADCA) is an ampholyte.

7-氨基去乙酰氧基头孢霉烷酸是两性化合物，从等电点两侧改变溶液的 p H值都可以产生过饱和度并结晶得到晶体产品，本文对 7-ADCA两种方法结晶的初级成核过程进行了研究。

A novel method for synthesizing the amino-sulfonic acid series amphoteric surfactants was developed.

给出了氨基磺酸系两性表面活性剂的一种新合成方法。

The toxicity effect of 6 carbamic ester pesticides on Anabaena flos aquae was studied .

6种氨基甲酸酯类农药对藻类的毒性效应。

By measuring and analyzing the total nitrogen,α-amino nitrogen and component, the effect of high pressure on the autolysis of anchovy, and the effect of salt addition as well as enzyme added on the high pressure hydrolysis were investigated.

以水解液总氮含盆、α-氨基氮及游离氨基酸组成成分等为指标，研究了超高压在鳀鱼自身降解过程中所起的作用，同时讨论了超高压下添加盐、外源酶对超高压作用效果的影响。

Heat intolerance with hypohidrosis or anhidrosis has been recently reported in children undergoing epilepsy treatment with TPM.

可以增加γ-氨基丁酸激活GABAA受体的频率，加强氯离子内流，增强抑制性中枢神经递质的作用[4，5]；3。

The introduction of amino-group into benzene ring to produce aniline is involved in this research.

直接将氨基引入苯环合成苯胺属于这类研究的课题。

Synthesis of p-Anisidine was studied by reducing p-Nitro Anisole with hydrazine hydrate in the presence of Pd/C catalyst.

研究以Pd/C催化剂催化水合肼还原对硝基苯甲醚合成对氨基苯甲醚的工艺。

In this thesis, a convenient and efficient synthesis of highly functionalizeddihydropyrido[2,3-d]pyrimidines via a double [5 + 1] annulation strategy startingfrom easily available α-alkenoyl-α-carbamoyl ketene--acetals 1 and cheapreagents (NH4OAc, DMF, and POCl3) has been developed.

本论文探索了一种简便有效的合成高度官能化的二氢吡啶并[2，3-d]嘧啶的方法，此方法由易得的α-乙酰基-α-氨基乙酰基二硫缩烯酮1和便宜的试剂(醋酸铵，二甲基甲酰胺和三氯氧磷)通过两步[5 + 1]加成而实现。

Recombinant plasmid pFf-22-Trp operon was successfully constructed, and both the anthranilate synthase and tryptophan synthase activities of expressed product increased. It laid a foundation of construction of recombinant E. coli strain for production of tryptophan in a large scale.

已成功构建了重组表达质粒pET-22b-Trp operon，邻氨基苯甲酸合成酶和色氨酸合成酶的活性在大肠杆菌中得到了提高，为高产色氨酸基因工程菌的构建奠定了基础。

Results Agarose gel electrophoresis proved that the length of PCR product was about 7 000 bp. SDS-PAGE showed that the target protein was highly expressed. Compared with those of control, the anthranilate synthase and tryptophan synthase activities of expressed product increased by 2.7 and 3.2 folds respectively.

结果 凝胶电泳可见代PCR扩增产物大小约为7000bp，SDS-PAGE鉴定目的蛋白分别得到了表达，邻氨基苯甲酸合成酶和色氨酸合成酶的活性分别比对照提高了2.7和3.2倍。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新