查询词典 cluster sampling

The firms located in industrial cluster are important ties that linked the local industrial cluster and the global production network. They are as well as the micro-dynamics for the clusters' upgrading and evolution in the context of economic globalization. The existing researches on industrial cluster almost focus on the cluster's competitive advantages as a whole unit, which has supposed the firms in clusters are homogeneous and opportunity equipotent that can get extra advantages compared to the un-clustered firms.

集群企业正成为联系地方产业集群与全球生产网络的重要纽带，是经济全球化背景下产业集群升级和演进的微观动力；从已有的集群理论研究成果来看，目前的研究主要集中于集群整体层面，研究的焦点是对集群整体的竞争优势进行探讨，集群企业被假定为是具有同质性和机会均等性的，相对于非集群企业可以获得一种"非对称"的特殊竞争优势。

The Gayal separated the yaks far away and formed one cluster and 9 yak breeds grouped together. Analysis of population structure for 9 yak breeds shows that there inferred three clusters, one cluster includes yaks in Tibet Autonomous Region and Qinghai Province, the other cluster combines Zhongdian, Maiwa and Tianzhu White, and Jiulong and Xinjiang come into the third cluster.

进一步分析9个牦牛和大额牛的群体结构发现：10个种群可分为4个亚群体，一类是青藏高原的牦牛，一类包括中甸牦牛、麦洼牦牛和天祝白牦牛，第三类包括九龙牦牛和新疆牦牛；帕里牦牛主要分布在第一亚群体中，占90%，九龙牦牛主要分布在第二亚群体中，占87.1%，中甸牦牛主要分布在第三亚群体中，占83%，其他品种分布在2至3个亚群体中；大额牛独立分布在第四群体中，占99.3%。

In homogeny cluster head hierarchical topology, the article first discusses the selection of cluster head. With a given formula on weights, a suitable cluster head node is selected. And according to the relationship of location with cluster head node, the gateway nodes and the distributed gateway nodes are selected.

簇头同构的分簇算法中，首先讨论了簇头的选择，给出了一个权值设定公式，按照权值大小，选择出合适的簇头节点，然后根据和簇头节点的位置关系，确定网关节点和分布式网关节点。

This paper briefs the basic principles of " transitive closure " cluster analysis based on fuzzy equivalent relation and fuzzy ISODATA cluster analysis based on soft division technique, and advances a classification and recognition method by combining K-L transformation and the two fuzzy cluster methods above, which makes full use of the advantages of both cluster methods.

介绍了基于模糊等价关系的"传递包"聚类和基于软划分的模糊ISODATA聚类2种模糊聚类分析方法的基本原理，充分利用2种方法的优点，提出了一种将K-L变换与上述2种模糊聚类方法相结合的分类识别方法。

In China, there are a lot of great development on industrial cluster, such as the high-tech industrial cluster in Zhong Guan Chun Science Park, Beijing, the extroversive machining industrial cluster in Dong Guan, Guang Dong province, and the industrial clusters of civil SMEs in Wen Zhou, Zhe Jiang province etc. Nevertheless, generally, it is still not balanceable on the development of industrial cluster in China.

本文首先对产业集群内的技术创新扩散进行了一般性分析，研究了技术创新扩散的动力机制、影响条件、模式及过程，从而掌握了其发展轨迹和一般规律，并指出了存在于产业集群内的技术创新扩散活动的特征，分析了不同产业集群模式对扩散活动的影响。

The flow field construct of meso-β cloud clusters which bring the heavy-hard rainfall in northeast plateau is that the low level cloud cluster is located in the south of converging region, the southern low level influx converged in the cloud cluster and have some affection on the setting up of the rainstorm in the low level. In the middle level, the cloud cluster is lied in near the westerly trough and the southwest airflow ahead of the trough constantly transmits water vapor to the cloud cluster. In the high level, there are a pair of high and low pressure centers around cloud clusters and are obvious divergence airflow, and there is weak ageostrophic high level outflux along pressure force.

产生高原东北部地区大到暴雨天气过程的中—β尺度云团的流场结构特征是：在低层，云团位于辐合区的南部，低层的偏南低空入流在云团内辐合，对大到暴雨的形成有一定的作用；在中层，云团位于西风带低槽附近，槽前的西南气流不断地给云团输送水汽；在高层，云团附近有一对高、低压中心，为明显的辐散气流，沿气压梯度力方向有强度不强的非地转高空出流。

Based on the genetic distance of 26% by SSR data, the cluster analysis with un-weighted pair-group method using arithmetic averages produced 2 major clusters: cluster Ⅰ of higher degrees of genetic differentiation and Cluster Ⅱ of lower degrees of genetic differentiation relatively, which are composed of 30 cultivars, and another cluster of much higher degrees of genetic differentiation, which is only composed of the cultivars of FHIA 25 and Pisang Jari Buaya.

依据26%的遗传距离，除了FHIA25和Pisang Jari Buaya单独化成1组外，其它30个品种可以分为2组：品种间遗传差异相对较高的组Ⅰ和品种间遗传差异相对较低的组Ⅱ。

The innovation is the essential attribute of industry cluster and supply perpetual drive to it.The study on enterprise cluster begins to turn to cluster policy,and it's more unperfected on the study of cluster-based on innovation policy.

目前集群理论研究日趋成熟，以后的集群研究将走向两个方向：一方面是关于各学科交叉的边缘研究；另一方面就是基于集群战略实施的政策研究———集群战略和政策。

It constructs a tentative frame of theories and policies of industrial clusters. It analyzes industrial clusters mechanism and policies. The research outspreads nine parts. The first part states the background, thepurpose and the present situation of the industrial clusters and development zone.Chapter2 summarizes the theory of development zone, which includes itsconnotation, forms and the process of development zone, and then analyzes thetheory and practices of development zone abroad, finding the gap between Chinaand other developed countries and regions. In chapter 3, based on study of presentresearch, this paper discusses competitive advantages and inherent mechanism, putsforward to the necessity of research of industry cluster in hi-tech zones and pointsout that the industry cluster is the key that Hi-tech zones carry out the seconddevelopment In Chapter4, this paper discusses the possibility and their mutualmotivation between industry cluster and development zone from the view ofIndustrial Ecologization, game theory and industrial structure theory; based onanalysis of Chapter3 and Chapter4,the next two chapters underlines thedevelopment mood and mechanism of industrial cluster in developmentzone,besides,these chapters points out the role of government in this mood. InChapter7, this paper discusses the system of evaluation of the performance ofdevelopment zones. At last, based on the analysis above and the present situation ofOptical Valley in Wuhan, Hubei province, the author estimates the performance ofoptical industrial clusters in Optical Valley, and puts forward to the advices about thegovernment, the mood and the policies of optical industrial clusters in OpticalValley.

全文研究从以下八个部分展开：首先，在文章的第一部分，论述了关于本篇论文的研究背景、研究目的和国内外研究的理论与实践现状；第二部分主要阐述了关于开发区的理论，包括其内涵、表现形式和发展历程，并对国外开发区的理论和实践予以论述，由此对比出国内外开发区发展的差距，从中找出国内高新科技园区的不足和先进发展模式的经验——即发展产业集群；第三章产业集群的基本理论，在对现有理论成果作了梳理工作之后，着重分析其竞争优势和内在机理，为开发区发展模式中引入此概念的必要性埋下伏笔；在探讨了开发区内大力发展产业集群的必要性以后，第四部分着重研究其可行性及其互动机制，包括从产业生态学的角度、博弈论的角度、产业组织理论的角度等，为开发区内的产业集群发展的优势进一步展开；在完成了对其必要性和可行性探讨的基础上，在本文的第五和第六部分分别研究了我国开发区产业集群的发展模式和运行机制，以及政府在当中应当扮演的角色，并提出适当的制度建议；第七章给出了开发区产业集群的评价体系，并在此基础上，第八章结合武汉光谷高新技术开发区的现状作出实证分析，对区内产业集群发展情况作出评价，并对其具体发展模式、政府行为及政策建议作出建议。

The shared resource not only has significant positive impact on the competitive advantages of the firm in the cluster, but also has indirect negative impact on the competitive advantages of firms in cluster. The mechanism of the shared resource acting on the competitive advantages of the firm in the cluster is complicated.4 The rigidity of shared resource can be reified to different kinds of rigidities, and different kinds of rigidities have different modes of effecting on the competitive advantages of firms in cluster.

共享性资源对集群企业竞争优势不仅具有正向作用，还可以通过共享性资源刚性对集群企业竞争优势产生负向作用，因此，集群企业竞争优势水平是共享性资源对其多种路径共同作用的结果；(4)共享性资源刚性可以分解出各种不同类别的具体刚性要素，不同的刚性要素对集群企业竞争优势产生作用的路径不同。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。