合成体

Chapter 6: The analogue of the Squalamine's intermediate was synthesized from desoxycholic acid by using asymmetric addition of alkynes to the aldehydes (ee up to 99%) as key step.

第六章：利用炔对醛的不对称加成反应为工具，我们从方便易得的原料猪胆酸出发，对甾体化合物的侧链进行了改造，合成了Squalamine的中间体类似物。

The main results and conclusions can be organized as follows:(1) The alkaline-earth aluminates and silicates, which can emit the light from violet to red with long afterglow, are prepared by the different methods such as solid-state reaction, sol-gel, and combustion synthesis, etc.

获得了从紫色到红色所有可见波段的长余辉材料，通过对铝酸镏的基体元素比例、合成工艺和共掺杂元素的研究，使SrAl〓O〓：Eu〓，Dy〓的有效余辉时间大大增强，很容易突破30小时。

In 1999, the Liaoning provincial important Sci-Tec started a key problem project for the technology of protecting and preventing of dangerous river bank and plain reservoirs. Under the support of this project, this research was carried out for experiment of engineering properties and bank engineering applications of geosynthetics. In order to solve the life and soil retention criteria of geosynthetics problems in bank engineering applications, the indoor tests, in-situ tests, locale antitypes tests and observations, theory analysis, and engineering examples analysis have been performed.

结合堤岸防护工程实际条件，采取室内试验、野外试验、工程现场原型试验或观测以及理论分析和大量工程实例验证分析的方法，对堤岸防护工程中应用的土工合成材料相关工程特性，尤其是老化规律和较大孔径织造布保土性准则，进行了较系统、深入的试验研究；在此基础上，通过典型工程实例及大量工程应用实践总结分析，重点对土工织物软体排、土工模袋、土工膜堤岸防护工程的设计方法和施工技术进行了研究。

This paper introduces the quality control in the production of huge cemented carbide six -face anvils,which are applicated to synthesize artificial diamond in large size capacity.

概述了与人造金刚石合成大腔体相配套的硬质合金六面顶大顶锤的质量状况，分析了大顶锤质量与使用寿命的关系，从内部结构和外部质量两方面讨论了大顶锤质量控制的方向，提出了提高大顶锤质量、降低锤耗的几种方

Bacteroids synthesize nitrogenase, a Mo-Fe protein, which is the enzyme that catalyzes reduction of N2 to ammonia.

类菌体合成固氮酶，一种钼铁蛋白，这种酶能催化氮气还原为氨。

Part Ⅰ The Research of Chiral Phosphorus Catalysts in the Enantioselective Borane Reduction of Prochiral Ketones ABSTRACT In this paper, the preparation of varied types of chiral phosphorus ligands and their applications as catalysts in the asymmetric borane reduction of prochiral ketones were investigated.

第一部分对映选择的潜手性酮的硼烷还原反应中手性磷催化剂的研究本文研究了多种不同类型的手性磷配体催化剂的合成及其在酮的不对称硼烷还原反应中的应用。

Fluorimetric determination of traces of europium using a new chelator and acetate or phosphate in dimethylsulfoxide as enhancers.

论文合成了一种开链大环有机配体的稀土及稀土金属配合物及其作为分子功能材料的理论和应用研究。

Several studies, both in vitro and in vivo, have demonstrated that HBV replication can be inhibited in transfected cells by synthetic siRNA duplexes and also Pol III-derived short hairpin RNA sequences.

多个体内体外研究证实：在转染细胞中的乙肝复制可被合成的小分子干扰RNA双链体或针对聚合酶III的短发夹RNA序列所抑制。

The opening reaction of epoxide 17 by nucleobases was achieved regioselectvely to give designed isonucleosides in reasonable yield.

通过环氧化合物17的碱基开环反应，区域选择性地合成了设计的异核苷并利用制备HPLC分离了区域异构体。

With the 9,9-bisfluorene , we developed new methods to synthesis of ethers. Different synthesis methods are compared.

对9，9-双芴再进行甲基化反应，提供了合成醚类给电子体的方法，详细比较了各种方法的差异。

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