查询词典 cluster

Therefore,a centerless clustering algorithm considering cluster structure's stability is proposed,and cluster maintenance scheme is proposed too.

为了降低路由维护开销，使无中心分群结构很好地适用于大规模自组网，最首要的任务是使分群结构尽量稳定。

It means that earthquakes recur clusteringly in time intervals of close length. This model contains two kinds of meanings: one is that earthquake cluster quasi-periodically recurs, and the other is that earthquakes within an earthquake cluster clusteringly recur.

这种所谓准周期丛集复发是指大陆板内地震以大致相近的时间间隔成群丛集发生，它包含有两层含义：一是指地震丛是准周期重复发生的；二是指在某一地震丛内，地震又是丛集复发的。

The results of the analysis to complete 18S rDNA and partial 28S rDNA D 6-7 domain sequences of 30 collembolan species supported the monophyly of Poduromorpha and Symphypleona, Entomobryoidea is not a monophyly, familia Neelidae should be separated from Symphypleona. The situation about the superfamilia of Tomoceroidea and the familia Neelidae need further studies. The results of the further analysis to complete 18S rDNA and nearlly completely 28S sequences of 4 Protura, 6Collembola, 5 Diplura, 5 Insecta, 10 Crustacean, using 1 Myriapoda and 1 Chelicerata as outgroups indicated that Protura, Collembola and Diplura are monophy, respectively, Protura and Diplura have the nearest realationship, they make sister groups with Collembola and all of them assemble with Insecta to make a monophy cluster of Hexapod; The results support the monophy of Pancrusracea, Crustacean is not a monophy cluster and the realationships between them with Hexapod need further reseachers.

对我国的14科27属30种跳虫的18S rDNA全序列和28S rDNA部分序列(D6-D7)的基因信息数据进行分析，结果支持原目、愈腹目的单系性，长角目不形成单系群，支持短角科从愈腹目中分出，但鳞总科和短角目的分类地位有待于深入分析探讨；进一步比对4种原尾虫、6种跳虫、5种双尾虫、5种昆虫和10种甲壳动物的18S rDNA全序列和28S rDNA全序列，以1种多足动物和1种螯肢动物为外群，进行系统关系分析，结果显示：原尾纲、弹尾纲、双尾纲分别为单系群，原尾纲和双尾纲优先聚为一支，然后和弹尾纲构成姐妹群，以上三类又和昆虫聚为一支，支持六足动物的单系性，支持泛甲壳动物，但甲壳动物并未形成单系，其各类群和六足动物之间的亲缘关系尚须进一步确定。3。

According to the research object and core, the competitory power of bio-industry, this thesis was unfolded from four aspects: Firstly, we put forward the competitory power of bio-industry theory, its concepts and categories, analytical frame and theories structure from analyzing its influence and determinant system; Secondly, appraisal models, based on deciding factors, composing factors and realizing factors, were respectively established, by using related mathematics method, cooperate theories, management and economics theories; Thirdly, according to the research on life cycle of bio-industry, we analyzed the characteristics and countermeasures of its competitory power changing at different stages; Fourthly, we focused on the core carrier of the bio-industry andits competitory power--the bio-industry cluster (life science industry park and biologicvalley), the bio-industry cluster theories and the park-area competitive factors and the capital market and the financing competition which are important drive factors of the competitory power of bio-industry. Firthly, making use of the evaluation model of bioindustrial competition ability, we carry on bioindustrial competition ability comparison of the United States and Chinas, and evaluate a substantial evidence.

针对本论文的研究对象和研究核心——生物产业竞争力，从五个方面展开研究：一是构建生物产业竞争力理论，提出和界定生物产业竞争力的概念和范畴，从影响和决定因素系统分析入手，研究生物产业竞争力的分析框架和理论结构；二是创建生物产业竞争力分析评价指标体系与模型，运用相关数学方法、协同理论、经济学和管理学理论，以生物产业竞争力的决定因素、构成要素和实现要素为依据，分别建立分析评价模型；三是研究生物产业竞争力生命周期，针对生物产业发展的不同阶段和特点，分析生物产业竞争力变化特点和应对策略；四是研究生物产业及其竞争力的核心载体——生物产业集群(生命科学产业园、生物谷)，研究生物产业集群理论和园区竞争要素，对生物产业竞争力的重要驱动因素——生物产业资本市场和融资竞争，进行分析探讨，并提出生物产业竞争的战略路径。

Cluster resultof ITS-RFLP co-migrate band was almost consentient with RAPD cluster.

ITS-RFLP共迁带UPMGA聚类分析的结果与RAPD聚类的结果几乎是一致的。

It is the first time to use the " soft ball model" theory of duster to explain the structure of Yn ( n=2-8),and adopt the "shell model" theory and assigning equally delocalize valence electrons of cluster to elucidate the relativity of structure and stability of doped cluster of noble metal Au,,Y(l -9) successfully.

首次利用团簇的&软球模型&理论解释了Y_n(n=2-8)的基态结构，采用团簇的&壳层模型&和价电子离域均分理论成功地阐明了贵金属掺杂团簇Au_nY(n=1-9)的结构与稳定性的关系。

Those three classes of ecosystem are:(1) peak cluster-narrow valley system;(2) karst hill, stone forest, peak clusler-wide valley, shallow depression system;(3) peak cluster-deep depression, dolina system.

因此，西南喀斯特山区生态系统的划分应将人类活动干扰程度和喀斯特地貌所造成的差异结合起来进行。

The 7.4 kb DNA fragment containing the S. Choleraesuis std fimbrial gene cluster was PCR amplified and cloned into the pCR-XL-TOPO vector. The open reading frames of the std fimbrial gene cluster were analyzed. The resulting recombinant DNA was transformed into Escherichia coli HB101 strain.

本实验室藉由PCR方式，增幅7.4 kb的std线毛基因组，将其选殖至pCR-XL-TOPO质体DNA，委外定序后，分析std线毛基因组之开放性读框，进而将此重组DNA送入大肠杆菌HB101，并藉由RT-PCR及西方点墨试验观察到S。

There was great diversity index among genetic trait of 50 barley. The anomic trait used as tested materials was analyzed by cluster. Cluster analysis showed that 50 barley could be classified into 5 groups at the level of GD 3.28; The 50 barleys were analyzed by A-PAGE to study genetic diversity of hordein.

各农艺性状的遗传多样性指数都较大，具有丰富的遗传多样性；对供试材料的农艺性状进行聚类分析，50份大麦材料在遗传距离3.28时可被聚为5大类。

From the relevant industrial cluster concept, character, and the need for government intervention start knorria from Peter and Jorg meyer Klemens put into industrial clusters Italy - and satellite-based, wheel-classification by industry sector clusters causes of their property cluster consists of a government-led, self-accumulation, Three types of embedded foreign investment; Porter new competition, in accordance with economic theory of the birth of industrial clusters, development and the impact of the decline of factors and the corresponding role of government research ideas, try to industry clusters from the perspective of evolution, dynamic view and thinking in different stages of the evolution of the changing role; and efforts to integrate national and domestic industry clusters unique environment, as well as the stage of development. provide relevant policy recommendations, the government should play a clear role.

本文从产业集群的相关概念、特性、以及政府干预的必要性着手，借鉴Peter knorria和Jorg meyer Stamer把产业集群分为意大利式、卫星式、轮轴式的分类方法，按产业集群的成因把产业集群分为政府主导、自我积累、外资嵌入3种类型；依照波特新竞争经济理论中对产业集群诞生、发展和衰亡的影响因素及相应政府作用的研究思路，尝试着从产业集群演进这个视角下，动态的看待和思考政府在不同演进阶段的角色转变问题；并努力结合国情和国内产业集群的独特环境，以及所处的发展阶段，提供相应的政策建议，明确政府应扮演的角色。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。