查询词典 metathesis

Furthermore, TiCN nanocrystals were synthesized at 420 for 8h using TiCU, CCl4 and NaN3 via chemical metathesis method.

通过TiCl_4，CCl_4和NaN_3之间的化学交换反应，在420℃加热8小时也制备出了TiCN纳米晶体。

Results Stable Spectral Karytyping method was set up and extraordinary multiplicity of structure, including metathesis、depletion、amplification、rearrangement、equiarm、marker-body and so on were found by this methad.

结果 我们建立了稳定的光谱核型分析方法，发现肿瘤实体瘤染色体异常呈多倍体且结构异常复杂，包括易位、缺失、扩增、重排、双着丝粒、等臂及标记染色体等。

In this dissertation, we present the synthesis, structure and self-assembly of some novel calix [4] arene derivatives with multi-cavities.

本论文工作主要包括三个部分：(1)通过RCM(Ring-Closing Metathesis)方法设计合成了一系列桥连的双杯[4]及多杯[4]芳烃衍生物。

The paper reviews the progress of ionic liquids as microwave mediums or catalysts in the fields of organic synthesis, mainly including cyclization, nucleophilic substitution, ring closing metathesis, acylation, rearrangement, polymerization, coupling, oxidation and reduction as well as selective debromination, etc.

本文综述了以离子液体为反应介质或催化剂的微波辅助技术在多种类型有机反应中的研究成果，主要包括了环合反应、亲核取代反应、金属复分解反应、酰化反应、重排反应、聚合反应、偶联反应、氧化还原反应和选择性脱溴反应等。

The paper reviews the progress of ionic liquids as microwave medium or catalyst in the fields of organic synthesis, mainly including cyclization reation, nucleophilic subsitution reaction, metathesis reaction, acylation reation, rearragement reaction, polymerization reaction, coupling reaction, oxidation and reduction reaction as well as selective debromination reaction etc.

本文综述了以离子液体为反应介质或催化剂的微波辅助技术在多种类型有机反应中的研究成果，主要包括了环合反应、亲核取代反应、金属复分解反应、酰化反应、重排反应、聚合反应、偶联反应、氧化还原反应和选择性脱溴反应等。

In this study, we first synthesize a conducting polymer, P3HT, via Grignard metathesis method. And we functionalize the polymer chain end of P3HT into vinyl group. After characterize from 1H NMR spectroscopy, we use the end functionalized P3HT to proceed coupling reaction with P2VP anion.

为了达到这个研究目的，我们先利用格林纳置换法合成导电高分子P3HT，并将其尾端乙烯化，在经核磁共振仪确定结构后，利用此尾端乙烯化之P3HT与P2VP阴离子反应进行接合。

The catalysts of the invention is able to catalyse metathetic degradation of nitrile rubbers with a higher activity than the metathesis catalysts available at present and thus makes possible an increase in the reaction rate and the setting of lower molecular weights of the degraded nitrile rubbers at a comparable noble metal content.

本发明的催化剂能够以比目前可获得的复分解催化剂更高的活性来催化丁腈橡胶的复分解降解，由此在可比较的贵金属含量下使之有可能增加反应速率并设定降解的丁腈橡胶的较低分子量。

Meanwhile the chemistry prize, also split three ways, was awarded for "the development of the metathesis method in organic synthesis". In this case Yves Chauvin, Robert Grubbs and Richard Schrock were the recipients.

同时，化学奖也被分成三部分，授予了&创造有机合成中的复分解法&的人，他们分别是伊夫－肖万、罗伯特－格拉布和理查德－施罗克。

Meanwhile the chemistry prize, too split Number 3 ways, were awarded for "the development of the metathesis method in organic synthesis". In the case Yves Chauvin, Robert Grubbs and Ricexert Schrock were the recipients.

同时，化学奖也被分成三部份，授予了&创造有机合成中的复分解法&的人，她们分别是伊夫－肖万、罗伯特－格拉布和理查德－施罗克。

Metathesis, the technique for which Dr Chauvin, Dr Grubbs and Dr Schrock will receive their prizes, is a form of chemical sleight of hand that allows groups of atoms to be moved efficiently from one molecule to another.

复分解是一种化学技术，能使原子团有效地从一个分子转移到另一个分子。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。