首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 46 毫秒
1.
运用文献资料法、数理统计等方法对支撑江苏省区域竞技体育发展的社会资源进行研究。研究结果显示,支撑江苏省各区域竞技体育发展的社会资源存在较为显著的非均衡性分布状况。这些社会资源可归结为“人”、“财”、“物”资源,其中“人”力资源主要包括:1)江苏省优秀运动队运动员输送的非均衡性;2)各区域竞技体育运动学校不同竞技项目学生人数非均衡性分布。“财”主要包括:1)江苏省各区域竞技体育财政拨款的非均衡性;2)各区域体育彩票留成收益金的非均衡性。“物”主要包括:1)省级传统体育学校数量的非均衡;2)各区域体育场地设施的非均衡性。  相似文献   

2.
采用统计法,具体比较了近三届全运会金牌榜前8名,及奖牌榜后8名的排位及奖牌情况,研究发现,在全运会奖牌榜前8名省市中,竞技体育实力超群的代表队相对稳定,虽然每届具体排名或有出入,但强者恒强的格局清晰可见.针对此一竞技体育中出现的马太效应,研究认为,其致因主要有以下几方面:(1)参赛主体的综合实力使然;(2)参赛主体的政府认可;(3)竞技底蕴深厚,金牌榜惯性使然;(4)全运会东道主优势明显;(5)区域竞技文化软实力的格局相对稳定.研究认为我国竞技体育中马太效应的出现有其必然性与合理性,应当正确认识,善加研究,以利于后进代表队学习借鉴.  相似文献   

3.
利用文献检索、数据统计、数理分析、专家访谈和对比分析等研究方法,以省级行政区域为研究对象,对历届夏季奥运会奖牌榜的省市分布进行了详细的统计分析.结果表明:随着我国竞技体育总体实力的提高,各省份之间的差距仍然存在,辽宁、湖北和江苏位列奥运金牌榜的前三甲,所获金牌总数占到全国的29.49%;各省份竞技体育水平的差距形成明显的"马太效应",至今还有新疆、西藏、宁夏、青海、甘肃、海南6省未获得奥运会金牌;金牌大省的金牌项目都分布较广,包含了我国传统优势项目,性别比例呈现出女强男弱,男子奥运冠军平均年龄为23.71岁,女子奥运冠军的平均年龄为23.15岁.建议坚持和完善举国体制,促进区域之间的体育交流与合作,加强体育后备人才的培养,扩大体育科技化与产业化进程,推动区域竞技体育的协调发展.  相似文献   

4.
试论竞技体育"举国体制"的可持续发展   总被引:1,自引:0,他引:1  
竞技体育的"举国体制"模式对中国社会的进步及融入国际社会交流起到了巨大的作用.在市场经济体制的进程中,各种利益主体的需求已成为构建和谐社会不容忽视的内容.持续运用并发挥竞技体育"举国体制"的模式,使其在国际社会中仍能凸现其优势显得尤为重要.从竞技体育的"举国体制"模式作可持续发展的探讨认为:竞技体育"举国体制"的可持续发展,基点在于,1)从粗放型向集约型转变是竞技体育"举国体制"可持续发展的必由之路;2)优化内部与外部系统的关系是竞技体育"举国体制"可持续发展的机制力量;3)做好社会体育、学校体育工作是竞技体育"举国体制"可持续发展的情感基础.  相似文献   

5.
江苏省竞技体育后备力量培养布局结构与特征研究   总被引:1,自引:0,他引:1  
以江苏省竞技体育后备人才运动项目和本省各地级市省属体育传统项目学校以及教体结合学校为研究对象,运用数理统计法,从项目结构和效益两个维度出发,分析我省体育后备力量培养中运动项目结构和区域布局的非均衡特征,并对项目效益进行量化分析。研究表明,江苏省竞技体育后备人才培养的区域布局与普及率失衡,项目结构与本省优势项目存在偏差,项目整体效益偏低;调整项目结构,提高训练效益,深化体制改革,加强宏观调控,是提高竞技体育后备力量培养整体效益的有效途径。  相似文献   

6.
跨项选材既是适应竞技体育不断发展的需要,也是挖掘运动员最大潜能的重要步骤和手段,竞技体育跨项选材对于改善江西省竞技体育项目布局有着重要的现实意义。研究采用资料分析法、调查法、数理统计法对江西省近两届全运会成绩、教练员基本情况、教练员项目等为调查对象,探讨了竞技体育跨项选材对江西省竞技体育项目布局的影响,研究认为:1)在最近一个全运会周期中,江西省竞技体育有了一定的发展,除传统的优势项目外,其他优势项目未形成集群优势,优势项目偏窄是制约江西省竞技体育整体水平发展的重要因素;2)江西省竞技体育项目分布具有较强的地域性,对于发展江西省竞技体育具有较强的针对性,但同时制约了不同地区竞技体育跨项选材的发展;3)江西省竞技体育教练员知识结构能够满足其执教的专项训练,但比较单一,并不能完全满足跨项选材的要求。建议:江西省竞技体育的布局中应在加强传统优势项目的基础上,加大群众项目的开展,利用其教练员在数量资源的优势,从纵观方面实现传统竞技体育与群众体育的有机融合,在横观方面实现优势项目面的不断增加,拓展竞技体育人才同时,提高江西省竞技体育跨项选材的效率,促成江西省竞技体育全面、健康、和谐的发展。  相似文献   

7.
提高竞技体育效益是一个多系统全方位的过程,要以竞争为先导,充分发挥自身优势,通过人才交流、确立科学的评估体系、加强科学研究和强化管理措施,全面提高西北地区竞技体育水平,从而达到提高西北地区竞技体育效益的目的。  相似文献   

8.
通过对第9~11届全运会吉林省竞技体育比赛成绩的帕累托分析,找出吉林省竞技体育优势项目群(并对其动态消长进行了比较分析);影响和制约吉林省竞技体育优势项目可持续发展的主要因素;旨为吉林省竞技体育的完善、发展提供参考.主要结论:吉林省竞技体育呈冬夏季两线作战,是我国冰雪项目的主导地区之一,其优势项目为短道速滑、花样滑冰、自行车、举重、摔跤、乒乓球、田径等项目.优势项目主要集中在体能主导类、其次是技能主导类;优势项目不多,夺金点少.建议:进行项目合理布局;加大资金投入;加强优势项目后备人才运动员的培养与储备;挖潜增金等.  相似文献   

9.
许瑞霞 《科技信息》2007,(6):200-201
以“举国体制”为核心的中国体育管理体制,对我国优势项目的腾飞起到了积极的推动作用,但也产生了一些负面影响。对“举国体制”对我国竞技体育的影响进行了分析。研究结果认为:转变政府管理职能;要以科学的选材为基础,提高运动训练科技含量;调整奥运项目布局等是完善和发挥我国竞技体育“举国体制”优势的具体思路。  相似文献   

10.
现代竞技体育的理想是是建立公平的竞赛环境,在公平性的基础之上的,运动员发挥最大的运动潜能,创造优异的运动成绩.同时,随着科学技术的快速发展和更加注重人文关怀,在竞技过程中更加重视医务监督,充分保障运动员的身心健康.科学的发展使得我们的医务监督水平得到了很大的提高,如何把科学技术发展带来的医务水平提高的优势应用到竞技体育的发展上,值得我们认真思考.  相似文献   

11.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

12.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

13.
本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。  相似文献   

14.
Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with  相似文献   

15.
The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to  相似文献   

16.
17.
The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.  相似文献   

18.
R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).  相似文献   

19.
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.  相似文献   

20.
The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号