群
- 与 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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Group is an important concept in Modem Algebra. Viewed from a different angle it may be divided into two different categories: finite group and infinite group; and Abelian group and non-Abelian group.
群是《近世代数》的一个重要概念,从不同的角度出发,群可以分为有限群和无限群两大类,又可以分为交换群和非交换群两大类。
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We prove that in every induced locally compact 〓fuzzy topological groupthere exist at least one regular fuzzy set-valued Haar measure.We define the fuzzymeasurable group and prove that the fuzzy set-valued Haar measure in a fuzzymeasurable group is essentially unique.We also construct the fuzzy topologicalstructure on a group by the fuzzy set-valued measure such that make it a fuzzytopological group.
证明了诱导局部紧〓模糊拓扑群上存在模糊集值Haar测度,定义了模糊可测群,通过对模糊可测群的研究证明了诱导局部紧〓模糊拓扑群上的模糊集值Haar测度本质上的唯一性,并利用模糊可测群上的模糊集值测度构造了群上的模糊拓扑结构使之成为模糊拓扑群。
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The paper proposes an algorithm based on the combination of Ant Colony Optimization and Particle Swarm Optimization for path planning.The new algorithm combines the advantages of ACO and PSO effectively and generates the distribution of the initial information for ACO by using the merits of high efficiency and concision of PSO,and then uses the advantages of parallelizability,positive feedback and solution with high accuracy of ACO to get global optimum solution.
提出了一种基于蚁群粒子群算法融合的机器人全局路径规划算法,该方法有效地结合了蚁群算法和粒子群算法的优点,利用粒子群算法的快速简洁等特点得到蚁群算法初始信息素分布;然后利用蚁群算法的并行性、正反馈性、求解精度高等优点,求得全局最优解。
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With the help of its structure, this paper points out that the non-commutative finite solvable subsimple group will necessarily be a qualitative element group. And referring to the nature of qualitative element group, it can be easily identified the conditions that the ordered prime divisors in a solvable initial finite subsimple group should meet. Suppose that G is always a finite group.
利用其结构,指出了非交换可解有限次单群必为质元群,从而利用质元群的性质,可以很容易地初步确定了可解有限次单群的阶中素因子之间所必须满足的条件,主要得到下面的一些结论:定理1 G是非交换的可解有限次单群,则G′是G的唯一的非平凡正规子群,并且G′是初等交换p -群,此时| G |= p~n q,|G′|=p~n,。
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A sufficient condition for supersolvable group depending on theproperty π-quasinormal of its Fitting subgroup is given.
聂林通过讨论有限群的Fitting子群的极小子群的π-拟正规性,利用有限群的正规群列及多种有限群论的方法和技巧,得到了一个有限的可解群成为超可解的充分条件。
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The forming way about industry circle have some guide meaning for the present industry policy, industry circle can drive the whole develop in the area, but circle theory and practice have spatial difference. At the last of the thesis stands on the theory, contrast as much as the main questions of industry collect in reality economy, raise objectively the industry collect develop policy after explaining and analyzing as the theory judgment of analyzing industry collect.
研究产业集群的形成路径对我国当前的产业政策具有一定的实践指导意义,产业集群可带动区域的整体发展,而集群理论和集群实践存在差距,文章最后在理论的基础上,尽量对比现实经济中产业集群存在的主要问题,解释分析之余提出针对性的产业集群发展政策,以此作为分析产业集群政策的理论依据。
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By using properties of quasi-regular semigroups and left central idempotents, some statements are proved. Let S be a quasi-right semigroup, then (1) S is a quasi-completely regular semigroup;(2) RegS is a completely regular semigroup;(3) R(superscript *) is the smallest semilattice congruence on S;(4) Each R-class T(subscript α) on RegS is a right group;(5) T(subscript α)G(subscript α)×E(subscript α), where G(subscript α) is a group, E(subscript α) is a right zero semigroup.
利用拟正则半群和左中心幂等元的性质,证明了S为拟右半群时,(1) S为拟完全正则半群;(2) RegS为完全正则半群;(3) R为S上的最小半格同余;(4) RegS上的每个R-类T为右群;(5) TG×E,其中G为群,E为右零半群。
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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。
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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、外资嵌入三种类型;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。
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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。
- 推荐网络例句
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In the United States, chronic alcoholism and hepatitis C are the most common ones.
在美国,慢性酒精中毒,肝炎是最常见的。
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If you have any questions, you can contact me anytime.
如果有任何问题,你可以随时联系我。
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Very pretty, but the airport looks more fascinating The other party wisecracked.
很漂亮,不过停机坪更迷人。那人俏皮地答道。