查询词典 chemical synthesis

In the first part, chemical synthesis, including by acraldehyde, malonic ester, ami no lactone and others were discussed and synthesis by hydantoin was emphasized.

第一部分讨论了DL-蛋氨酸及其衍生物的化学合成，包括丙烯醛法、丙二酸酯法，氨基内酯法等，并着重介绍了海因法。

At present,α-alanine is produced by fermentation or chemical synthesis.

目前，α—丙氨酸的生产采用发酵法和化学合成法。

So C. cathayensis exocarp could be used to synthesize potassium pyrophosphate. Some technical conditions of preparing pyrophosphate potassium were studied by chemical synthesis method.

以山核桃外果皮消化后的灰分为原料，采用化学合成法对制备焦磷酸钾的工艺条件进行了研究。

In this paper, we studied ferrate chemical synthesis, electrochemical production, charge-discharge properties and the impact of additives on the electrochemical characteristics of Fe cathode .

主要研究了高铁酸盐的化学与电化学制备新方法、电化学性质以及添加剂对高铁酸盐电极性能的影响。

The majority of them are produced by fermentation using microorganisms of different species identified as species belonging to Aspergillus, Monascus, Nocardia, Amycolatopsis, Mucor or Penicillium genus, and some are obtained by treating the fermentation products using the methods of chemical synthesis or they are the products of total chemical synthesis.

它们主要是用属于曲霉属，红曲霉属，诺卡菌属，Amycolatopsis，毛霉属或青霉属的不同物种的微生物通过发酵而生产的。有一些是用化学合成方法处理发酵产物而获得的或者有一些是全部化学合成的产物。

According to the spetial conformational analysis and physical/chemical property analysis and by the aid of computer it can make molecular design of mimic polypeptide and designs the polypeptide molecule with activity for neutralizing LPS, and adopts the solid phase polypeptide chemical synthesis method to synthesize antibacterial/antiendotoxin mimic peptide with total or partial BPI bio-function.

本发明公开了通过计算机模拟设计、人工合成的66个抗菌／抗内毒素模拟肽，根据对BPIN端三个LOOP区的空间构象分析及物理化学性质分析，在计算机辅助下进行模拟多肽的分子设计，设计出具有中和LPS活性的多肽分子，用固相多肽化学合成方法合成抗菌／抗内毒素模拟肽，本发明的抗菌／抗内毒素模拟肽具有全部或部分BPI的生物功能，可以用于治疗G－细菌感染、人内毒素血症，具有分子量小、可以稳定重复生产的特点。

Its production technologies (such as brucite milling method and chemical synthesis method) and modification researches were summarized,and the research hot spots of chemical synthesis method and modification were mainly introduced.

综述了氢氧化镁的生产技术(水镁石磨细法和化学合成法)以及改性研究，重点介绍了氢氧化镁的化学合成法以及改性研究的热点。

Five synthesis methods of AlN powder were discussed,namely direct nitrogenation of Al powder,carbothermal reduction of Al2O3,chemical vapor deposition,sol-gel method,self-propagating high-temperature synthesis and plasma chemical synthesis.

凝胶法、自蔓延高温合成法和等离子化学合成法；分析AlN烧结助剂的选择和5种烧结工艺：热压烧结、无压烧结、放电等离子烧结、微波烧结及自蔓延烧结；阐述AlN基板的制备工艺及其影响因素。

Five synthesis methods of AlN powder were discussed, namely direct nitrogenation of Al powder, carbothermal reduction of Al2O3, chemical vapor deposition, sol-gel method, self-propagating high-temperature synthesis and plasma chemical synthesis. The choice of AlN sintering additives and five sintering technologies were analysed, namely hot pressing sintering, pressureless sintering, spark plasma sintering, microwave sintering and self-propagating sintering. The preparation processes of AlN substrate and its influencing factors were expounded.

介绍AlN陶瓷的典型性能和导热机理；讨论AlN粉末的5种合成方法：铝粉直接氮化法、Al2O3碳热还原法、化学气相沉积法、溶胶凝胶法、自蔓延高温合成法和等离子化学合成法；分析AlN烧结助剂的选择和5种烧结工艺：热压烧结、无压烧结、放电等离子烧结、微波烧结及自蔓延烧结；阐述AlN基板的制备工艺及其影响因素。

The recent synthesis progress of glycoconjugate is reviewed,including the various methods of the glycosidic bond formation by chemical synthesis and the synthesis strategies of novel complex glycoconjugates,such as glycopeptides,glycoproteins and glycolipids .

本文介绍近年来各种糖缀合物化学合成的研究进展，包括各种糖苷键的化学合成方法以及各种特殊复杂糖缀合物，如糖肽、糖蛋白、糖脂的化学合成策略。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐