查询词典 clusters

The chemisorption of CO on platinum clusters was treated by EHMO method.

本文用EHMO方法对CO在Pt原子簇上的化学吸附进行了量子化学计算。

The research on N_4 to N60 have been also stated in this study. Gas reaction method, liquid electrolyzing method and Chemosynthesis method have been used to synthesize polynitrogen clusters and find the optimal reaction conditions in this paper.

本文综述了高能密度材料的发展历史、性能特征以及应用前景，并总结了人们在实验和理论两方面关于N_4到N_(60)的各种可能稳定存在的氮原子簇的研究成果。

This paper is focused on the preparation, characterization of metal clusters and theircatalytic performance in the enantioselective as well as stereoselective hydrogenations. It iscomposed of the five parts as follows: Chapter 1 A review was given on the two most studied enantioselective systems—Ni/TA and Pt/cinchona system, including some recent progress.

本论文研究了铂、铱纳米金属簇在α-酮酯、α-二酮不对称氢化中的催化性能及金属离子在α-二酮立体选择性氢化中的修饰作用，主要分为以下几部分：第一章对多相不对称催化体系一Ni／TA和Pt／cinchona及其一些最新进展作了较系统的评述；同时简要介绍了纳米金属簇的特性及其在催化中的一些应用。

As well as activity was exhibited. Theaddition of cinchonidine led to a remarkable increase in the reaction rate, as confirmed bythe IR study that the modifier activates the carbonyl groups of the reactant through itsquinuclidine nitrogen. On the contrary,〓 exerted a strong inhibition effect on theenantioselective hydrogenation. Chapter 3 Finely dispersed polyvinylpyrrolidone-stabilized iridium andbimetallic clusters were prepared by the alcohol-water reduction method.

第三章 采用醇水还原的方法制备了聚乙烯基吡咯烷酮稳定的铱纳米簇及双金属纳米簇，对丙酮酸甲酯的催化氢化表明，在铱金属簇催化体系中，辛可尼定不仅诱导了一定的对映选择性，同时对反应活性有明显的促进作用，平均反应速率可提高2-6倍。

The random, looped animations of fish swimming in the sky were also made in CINEMA 4D before being duplicated with MoGraph's Cloner Object and repositioned to create small clusters.

鱼在天空-任意的游动，是循环-画在进入CINEMA 4D和MoGraph之前就先克隆出来，这样创-出了小群的鱼。

For very large clusters, there is competition between the face centered cubic octahedra and the hexagonal close-packed structures.

在团簇尺寸很大时，Fcc-oct结构和Hcp结构占优势，二者相互竞争。

It was he who first detected the small variations in hundreds of stars closely packed into the globular clusters.

正是他首先发现了星团中密密麻麻的千百颗星球中的细微变化。

But it is odd that countries should clump together into two broad clusters.

然而这些国家扎堆形成两个明显的集群就奇怪了。

Competitive intelligence and the work of the government carried out effectively on improving regional competitiveness, so as to promote the development of industrial clusters, the paper industry cluster is to the point of the competition on the work of the intelligence content and significance.

而政府竞争情报工作的开展有力于提高区域竞争力，从而促进产业集群的发展，本文就是从产业集群的角度研究政府竞争情报工作的内容与意义。

Qualitative analysis is used to analyze the performance of the central satellite type Industrial Cluster Structure by classifying the clusters according to their difference behaviors, from micro point of industrial cluster view.

本文从中卫型集群内企业的行为分析出发，通过集群内企业采取的不同行为时集群结构进行分类，从微观角度对其运行绩效进行了定性分析。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我