查询词典 clusters

A high level ab initio method and an ABEEM/MM model had been applied to study the hydronium ion clusters H3O＋(H2O)n (n＝1～6). The low energy geometries had been optimized and the binding energy and the stability had been discussed, revealing the preponderant existence of the local structure of the H3O＋(H2O)3 cluster.

应用高水平的从头计算方法和ABEEM/MM模型，研究了水合氢离子团簇H3O＋(H2O)n (n＝1～6)，优化得到了低能构象，探讨了其结合能和稳定性，显示出H3O＋(H2O)3局域结构的优势存在。

The surprise came when we found that the lineage of the Iceman did not fit any of the three known K1 clusters, Rollo said.

"另我们惊奇的是我们发现这个冰人的谱系不属于我们已知的任何一个K1簇群，"Rollo说道。

It is found that, reverse to common idea, the short-range is notpreferable for the stability of icosahedral clusters.

我们发现，与通常所认识的不同，短程势并不利于二十面体团簇的稳定。

In the second chapter, we discussed the influence of the range of inter-atomic potential on thestability of icosahedral clusters.

第二章我们研究了原子间相互作用势势程对二十面体团簇稳定性的影响。

A simple formula about the maximum atoms inthe icosahedral clusters and the range of interaction potential was proposed and proved to be rightby numerical method.

二十面体团簇所包含的最大原子数和有效势程之间的关系可以用一简单的关系式来描述。数值计算的结果与我们的理论相一致。

Tumours of all sorts, for example, are clusters of cells run out of control, dividing incessantly.

比如，各种不同的肿瘤其实都是不受控制的细胞群持续分裂的结果。

In order to overcome the technological difficulties encountered in the course of insulation fault diagnosis on the base of dissolved gases analysis, several kinds of mathematic models and actualized methods are brought forward to improve the reliability and veracity of fault diagnosis of transformers. The research works are shown mainly as followings:1 A modified fuzzy multi-criteria method is brought forward for insulation fault diagnosis of transformer. Furthermore, a new method for insulation fault diagnosis is proposed on the base of fuzzy multi-criteria together with rule reasoning. With fuzzy diagnosis in the method, fault reasons are filtrated and then the reasons in low probability are prohibited, Moreover, the left reasons are testified by using rule reasoning and then final concludes are drawn in much less misjudge probability and better results.2 On the base of geometry characteristics of C- partition to sample set of DGA data of transformer, a method is put forward to compute effective radius of neighbor field of a sample, number of clusters and values of initial centers. Moreover, the fuzzy C- means cluster model with adaptive weight is brought forward in the first time and then the fault classifier is designed for insulation fault diagnosis of transformer.3 According to the weakness of the degree of gray of gray incidence, a new formula to compute DGI is put forward and then incidence order criterion is ascertained. Moreover, a new DGI model for fault diagnosis is proposed according to the further analysis to relationship between fault reason and content of oil dissolved gases of transformer.

为解决在应用油中溶解气体分析方法（Dissolved Gases Analysis，简称DGA）诊断变压器内部绝缘故障时所遇到的主要技术难题，论文提出了用于提高变压器故障诊断准确性和可靠性的数学模型及实现方法，主要研究工作如下：1）提出了一种改进的变压器绝缘故障诊断模糊综合评判方法；进一步提出了将模糊综合诊断与规则推理相结合进行绝缘故障诊断的方法，该方法采用模糊推理对故障原因进行"过滤"，滤掉可能性极小的原因，然后进一步利用规则推理验证剩下的可能原因，得出最终结论，大大减少了误判比率，获得了较好的效果。2）根据以变压器DGA数据为特征量的样本空间的c-划分几何特性出发，提出了一种求取样本有效邻域半径和聚类数及聚类中心初值的方法，在此基础上，首次提出了一种自适应加权的变压器绝缘故障诊断的模糊c-均值聚类模型，并设计出故障分类器。3）针对常用灰色关联度的不足，提出了一新的灰色关联度计算公式及确定关联序的准则；并在此基础上，通过深入分析变压器发生绝缘故障时的原因与油中溶解特征气体含量的关系，建立了一种新的故障诊断灰色关联模型；通过实例分析证明，该方法能有效地诊断出变压器绝缘故障及故障部位，大大提高了诊断的准确性。

In recent years, the foreign-oriented indus trial clusters are rapidly developing in China and have been a characteristic phenomenon.

我国外向型产业集群的大量兴起是近年来我国经济发展的一个明显特征。

Key words:industrial clusters;technical norms union;technical standard;network effect

产业集群；技术标准联盟；技术标准；网络效应

Recently, domestic industry development zones present trends of developing specialized industries, industry clusters, and high-end industries, promoting resources intensiveness and achieving ecological environment.

近来，国内开发区呈现产业专业化、集群化、高端化以及资源集约化和环境生态化等趋势。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。