分群
- 与 分群 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Meanwhile, the experiments show that the multi-level swarm intelligence refinement algorithm is better than the multi-level tabu search refinement algorithm, especially in view of the probability that the approximate global minimum partition of the coarser graph may be the local minimum partition of the finer graph. Furthermore, the experiments show that the multi-level ant colony optimization refinement algorithm achieves more performance improvement than the multi-level particle swarm optimization refinement algorithm, using the gain of vertex more effectively.
实验数据反映出,针对最小图上的全局最优剖分可能是初始图的局部最优剖分、粗化图上的全局最优剖分可能是细化图的局部最优剖分的情况,基于群智能的多水平迁移优化算法相比基于禁忌搜索的多水平迁移优化算具备更强的逃离局部最优的能力;基于蚁群的多水平迁移优化算法相比基于微粒群的多水平迁移优化算法,对收益值的启发信息更为有效地利用,取得最佳的性能改进。
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This method is variational method, which will be much faster and more efficiency than other method.Firstly we use gauss integral method to disperse the least potential energy of barrette pile group, with the help of vertical settlement finite series and Mindlins equation, we derived vertical load-settlement solution of barrette pile group.
另外,目前有关壁板桩群桩水平承载特性的研究也比较少,因此,为了加深对壁板桩群桩承载特性的理解,本文利用变分法对壁板桩群桩竖直或水平受荷情况下的承载特性进行了初步的研究,通过变分法直接得出荷载位移显式方程,较之以往方法更加快捷。
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To overcome the shortcomings of present divisible e-cash scheme, for the first time, the thesis introduces group signature into divisible e-cash system and view the e-cash withdrawn by users as the group certificate issued by group administrator. As all of ancestor nodes of the payment node arc blindly transformed, the divided parts from one e-cash are no longer linkable.
针对现有可分电子现金方案存在的诸多缺陷,本文首次将适合于大群的群签名思想引人到可分电子现金中,将用户提取电子现金视为群管理员颁发给用户的群证书,通过将支付节点前的祖先节点进行盲化使得同一电子现金分割后的不同分割单元间不再有可链接性。
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For organizing vegetation submodel, started with the bottom-up gateway to agglomerate plot-data. The vegetation types must be confirmed before predictive vegetation mapping, therefore designed a transforming program to combine 585 plot-data from different surveys for the purpose. But the result of the classification and ordination of the combined plot-data couldn't display comprehensive vegetation types of Taiwan, because the plots were insufficient and disproportionate. Consequently, this study adopted the top-down gateway to divisive vegetation. After referring to Taiwan and east-Asia vegetation research papers and American national vegetation classification system etc., the physiognomic classification scheme of Taiwan had been drafted as vegetation submodel. The scheme included 4 levels: 2 classes, 5subclasses (subarctic, coldtemperate, cooltemperate, warmtemperate, subtropical), 8 groups (based on phenology and types of predominant leaf) and 16 formations (based on moisture regime and predominant taxa). And, the scheme dealt completely with the diverse nomenclatures of vegetation types in the past.
为建立植群亚模型,首先依「整合大量样区资料,由下而上的低阶植相聚类」之途径,设计建档程序及转档程式,成功整并不同来源之585个样区资料,但因样区数目不足且分布不均,分析结果未能显示出台湾完整的植群类型;故转循「预先设定植群类型,由上而下的高阶形相分类」之途径,经参考他国植群分类系统及台湾、东亚植群分类研究报告,订定分类原则及架构,提出4阶层之潜在植群形相分类方案:(1)寒原、森林2类群系纲;(2)亚寒带、冷温带、凉温带、暖温带、亚热带5类群系亚纲;(3) 8类群系组表徵优势植群之叶片的物候与形态;(4) 16类群系说明其水分境制及优势分类群;此方案统一处理了过去各种有关植群划分之纷岐名制,方案之各阶植群类型亦即本研究之植群亚模型。
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Finally, PNV had been mapped according to Boolean discrete methods to connect climate submodel and vegetation submodel by GIS. PNV map first represented the spatial distribution of all vegetation types of 4 physiognomic levels in Taiwan, also integrated the diverse comments of altitudinal vegetation zones and geographical climatic regions in the past. Besides, the scattered ranges of 36 dominant trees in the moisture-thermal regime and climatic zone had been drawn via coordinating 585 plot-data with MWI and WDI.
为达绘制潜在植群图之最终目标,本研究以MWI及WDI之网格图层代表气候亚模型,以潜在植群形相分类方案之各阶类型代表植群亚模型,藉由布林分离法联系此2亚模型之关系,建构气候–植群分类模型,并以地理资讯系统绘制出包含群系纲、群系亚纲、群系组、群系之潜在植群图,首次完整呈现台湾各阶植群类型之空间分布,合理说明了山地植群带分化、北部植群下降及西南部冬季乾旱等现象,亦整合过去各种有关垂直性山地植群带状分化与水平性地理气候区划分的复杂意见;另外,本研究将585个样区林木座标标定於MWI及WDI,绘制36种林木於水热境制及热量气候带之分布范围。
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Tricholoma may be a paraphyletic genus two. The collections identified as T. caligatum is a mixture. Some parts of them from France are members of T. matsutake, the other parts from North America are closed to T. bakamatsutake and T. fulvocastaneum. Tricholoma robustum and T. focale form a clade which is obviously a sister group of the stirp Subannulate. The stirp Caligata was defined as a group mainly on the basis of the predominant veil. But from the result of molecular systematic analysis, the presence of veil is not a stable character in the matsutake group. Species having symbiosis with conifers and broad leaf tree are all transformed from those whose host specificity is not strict. The phylogenetic tree based on ITS sequences resembled the tree of NJ algorithm based on cladistic coding. In the phylogenetic tree based on morphylogical characters, T. zangii and T. bakamatsutake form a clade, but it is the result of convergent evolution as suggested by molecular analyses. The distribution area of the matsutake group can be divided into six regions: middle and northern Europe region, Mediterranean region, Hengduan Mount.— Southeastern Tibet region, Northeastern China—Japan—Far-east Russia region, the Atlantic—North America region and the Rocky Mountain region. The abundance center of the matsutake group are Hengduan Mount.—Southeastern Tibet region and the Rocky Mountain region. Hengduan Mount.
松口蘑群的分子系统学研究得出的结果有:由于粗壮口蘑和羽衣口蘑明显和亚环族(Tricholoma,section subannulate)的种类是来自同一个谱系,和其它松口蘑群的种不具有最近共同祖先,因此松口蘑群是一个多系群;松口蘑群和口蘑属其他种类的亲缘关系比和蜜环菌属更接近;梭柄松苞菇和松口蘑群的差距明显小于油黄口蘑(T.flavovirens)和棕灰口蘑;口蘑属是一个多系群;鉴定为欧洲口蘑的标本明显不是一个单系群,其中一部分是松口蘑,另一部分和黄褐口蘑及傻松口蘑(T.bakamatsutake)比较接近;划分松口蘑群的标准是菌环的存在,但从分子系统学的结果来看,菌环的存在与否并非是一个很稳定的性状;和针叶树专性共生及和阔叶树专性共生均由寄主专化性不强的种类转化而来;在形态学系统发育树上青冈口蘑和傻松口蘑被聚为一个分枝,分子系统学的研究结果表明,这是趋同进化的结果;用支序方法编码作出的NJ树的结果更接近ITS序列的结果。
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Firstly we introduce the concept of Rees matrix semigroups without zero i.e.
矩形群、左群都是极其重要的半群,在Mario[2]中这两种半群都已有了很好的刻画,本文后两章将给出推广了的矩形群和左群的详细刻画,全文共分三章,具体内容如下:第一章主要对推广之后Rees矩阵半群的刻画进行了描述,在这一章里先介绍了无零Rees矩阵半群的概念,它是一类矩阵半群M=MT;I,?
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Lines which were 2n=21"+1" and one line which was 2n=20"+2", one line which was 2n=43. The salt-resistance addition line Line15 was confirmed as a Disomic alien addition line by C-banding, SSR, FISH methods, and the two alien addition chromosomes had close correlation with the long arm of the second homoeologous group, the centromere region of the third homoeologous group and the short arm of the seventh homoeologous group. We also confirmed the particular C-banding type of the alien addition chromosomes by C-banding following FISH method. The drought-resistance addition line Line17 was found also as a Disomic alien addition line by SSR and FISH detection. The alien addition chromosomes had close correlation with the short arm of the second homoeologous group.
对导入赖草优质耐盐基因的株系Line15进行了C-分带、荧光原位杂交、SSR相结合的鉴定,确认Line15是一个二体异附加系,附加的一对染色体与小麦的第二同源群长臂、第三同源群着丝粒和第七同源群短臂密切相关,并确定了Line15的外源染色体C-分带特征带型,为目后鉴定Line15附加系的真伪提供了简便快捷的途径;对抗旱附加系Line17进行了荧光原位杂交和SSR检测,得出Line17也是一个二体异附加系,外源染色体与小麦的第四同源群短臂密切相关。
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The third chapter aims to discuss the self-organization essence, self-organization growth mechanism, the pattern of self-organization evolving growth.The fourth chapter aims to discuss particularly the correlative mechanism between clusters dynamic core capacity and clusters sustainable growth, and the obtaining of cluster sustainable competitive advantage basede on dynamic core capacity and the fostering and newing of cluster dynamic core capacity based on discussing the rigid competitive advantage. The fifth chapter aims to explain the effecting mechanism of government influencing cluster self-organization-evolvement and the fostering and upgrading of cluster dynamic capacity based on the theory gist of government surpports .The sixth chapter aims to analyse the High-tech industrial clusters of Silicon Valley in American and Low piezoelectricity cluster of Liu shi in zhengjiang province and explains to how self-organization , dynamic core capacity and government surpports effect industrial clusters sustainable gowth.The dissertation's main innovation lies in the following :mechanism model of cluster sustainable growth is constructed under dynamic environment based on self-organization theory and dynamic core capacity theory .
本文共分6章,第1章主要阐述本论文的研究背景、研究问题和研究意义,综述相关的国内外文献,并提出本论文的研究逻辑思路、研究方法和主要内容;第2章在对产业集群本质再认识和集群持续成长内涵分析的基础上,从自组织理论和动态核心能力理论视角,构建了动态环境下集群持续成长机制的概念模型;第3章主要探讨了集群持续成长的自组织本质、自组织成长机理和自组织演化成长模式;第4章在分析集群竞争优势刚性的基础上,提出集群动态核心能力的概念,分析了集群动态核心能力的构成要素及其对集群持续成长的作用机制,探讨了集群动态核心能力的演进与产业集群持续成长的关联机理,并进一步探讨基于集群动态核心能力集群持续竞争优势的获取问题,最后是关于集群动态核心能力的培育与更新的探讨;第5章在论述政府对集群支持的理论依据的基础上,分别探讨了政府对集群自组织演进和对集群动态核心能力的培育和提升的作用机制;第6章实例研究,论文选取了美国硅谷高科技产业集群和浙江柳市低压电器产业集群进行实例分析,研究了自组织、动态核心能力和政府支持三大机制在集群持续成长过程中的作用。
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In this paper, the main results about the socles of crossed products are generalized to group graded rings.
将关于交叉积的基座的主要结果推广到了群分次环上,得到了群分次环的基座的一些具体刻划,特别地,证明了对有限群G和强G 分次环R ,有Soc SocR soc|G|。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。