大数据背景下中国足球超级联赛球队比赛表现分析

以中超联赛2014-2017赛季的技战术指标采集大数据为研究基础，运用因子分析、回归分析等统计方法，构建球队比赛表现分析模型，找出决定中超球队实力的关键性技战术要素，探讨技战术指标不同的序列组合与赛季成绩的相关关系，深度分析中超球队技战术表现的发展变化规律，为球队实力评价、比赛结果预测和技战术水平改善提供量化支持。结果显示：（1）中超球队比赛表现分析模型包含组织能力、传中能力、前场任意球、进攻效率、防守效率、把握机会能力、控球、转移、界外球、犯规、抢截球等维度；（2）局部加权线性回归的拟合程度好，模型的适用性广；（3）中超球队技战术水平整体呈现逐年下降趋势，无论优势球队还是降级球队，传中能力、把握得分机会和转移等核心竞争能力不同程度下滑；上游球队间的技战术水平差距缩小；犯规战术对下游球队适度有效。     

巧改结构 防渗防漏

本文介绍了超九卷烟机刀头主传动轴密封结构的改进方法,通过改进,可以方便地更换老化的油封,防止因油封老化而产生渗漏油现象。     

"虎落平阳"后的思考——以"超女"为个案谈审美消费

2005年8月,《超级女声》娱乐节目在中国电视界刮起了一股超级风暴。本文试就这一现象谈大众审美文化在当下所具有的五个表征,透视高雅文化“虎落平阳”的内在原因。同时,剖析大众文化“如鱼得水”背后潜藏的文化虚无现象。     

A maximum a posteriori super resolution algorithm based on multidimensional Lorentzian distribution

This paper presents a threshold-free maximum a posteriori （MAP） super resolution （SR） algorithm to reconstruct high resolution （HR） images with sharp edges. The joint distribution of directional edge images is modeled as a multidimensional Lorentzian （MDL） function and regarded as a new image prior. This model makes full use of gradient information to restrict the solution space and yields an edge-preserving SR algorithm. The Lorentzian parameters in the cost function are replaced with a tunable variable, and graduated nonconvexity （GNC） optimization is used to guarantee that the proposed multidimensional Lor- entzian SR （MDLSR） algorithm converges to the global minimum. Simulation results show the effectiveness of the MDLSR algorithm as well as its superiority over conventional SR methods.     

c-正规子群对超可解群结构的影响

利用c-正规子群的性质得到群的极小子群包含在群的超可解超中心时,可解群的结构,并总结了相关结论。     

Effect of short term supplementation of tomatoes on antioxidant enzymes and lipid peroxidation in type-II diabetes

The objective of the present study is to evaluate the beneficial effect of tomatoes, which are rich source of Lycopene, relatively a new carotenoid known to play an important role in human health and disease. In this study lipid peroxidation rate was measured by estimating Malondialdehyde and the levels of serum enzymes involved in antioxidant activities like Super Oxide Dismutase, Glutathione Peroxidase, Glutathione Reductase, Reduced Glutathione, in type-II diabetic group (n=40) and age matched control group (n=50), and observed significantly lower levels of antioxidant enzymes and very high lipid peroxidation rate in type-II diabetes when compared to control group (p<0.001). Short term supplementation with tomatoes (cooked) to diabetic group for a period of 30 days, showed a significant improvement in antioxidant enzyme levels (p<0.001) and decreased lipid peroxidation rate (p<0.001) suggesting the supplementation with tomato lycopene may serve as the best method of preventing the oxidative stress in diabetic patients.     

2017赛季中国足球超级联赛失球特征的统计分析

运用文献资料法、录像观察法、数理统计法、逻辑分析法对2017赛季中超联赛所有失球从失球区域、失球时间、失球球门区域、防守因素和失球形式五个方面进行全面系统地分析,找出存在问题,以期在训练中解决问题,减少在比赛中的失球。     

中国足球超级联赛净比赛时间研究

以2018赛季中国足球超级联赛全部240场比赛的净比赛时间以及死球消耗时间为数据为例,通过与2014-2018赛季中超联赛净比赛及死球状态相关数据对比、中超联赛个案分析以及影响中超联赛净比赛的主客观因素进行分析。研究结果表明:中超净比赛时间有所提高,但据60min的净比赛时间目标还有一定的差距;造成中超联赛死球的8项常规死球类型消耗最多的是任意球、第二是界外球、第三是球门球、第四是角球、第五是进球后重新开球、第六是越位、第七是坠球、第八是球点球;中超联赛首次引入VAR介入,平均每次耗时2min22s29,虽然单次耗时较高,但总耗时量仅排第七,这表明:中超VAR的介入,在保证中超联赛公平公正的基础上,其对2018赛季中超联赛的净比赛时间的影响并不是主要因素。     

‘Superbowling’: Using the Super Bowl’s Yearly Commentary to Explore the Evolution of a Sporting Spectacle in the American Consciousness

Abstract

In the days following Super Bowl III, New York Times columnist Robert Lipsyte coined the phrase ‘superbowling’. Consisting of the ‘chatter’ and diverse perspectives voiced throughout the nation in the days surrounding each Super Bowl, superbowling includes the off-the-wall psychiatric evaluations and epic gloating by football fans, political reactions and sociological analyses concerning the game’s affect on the nation’s institutions, as well as the hasty generalizations by alarmed moralists and university professors. This paper utilizes the ‘superbowling’ penned between Super Bowls I and XXXVI as evidence that provides insight into ‘the variety of ways in which Americans understood and enacted their political culture at a specific time’. By investigating the varieties of superbowling topics highlighted within each yearly Super Bowl, one cannot only better understand the evolution of Super Bowl Sunday, but can also understand its relationship to the prominent historical happenings and personalities of the time. It is concluded that by the turn of the millennium, superbowling revealed at least three enduring qualities of Super Bowl Sunday: ‘conspicuous consumption’, ‘shared experience’, and ‘national holiday’.