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图书馆开展企业竞争情报服务的关键成功因素 总被引:1,自引:0,他引:1
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我国出口产品生态效率偏低,容易招致国外生态反倾销指控。建立以企业为主体,行业协会为支撑,政府为主导,信息服务机构为中介,多元一体,协同联动的竞争情报体系,收集国内外相关情报信息,并进行加工、整理、分析与研究,是有效应对反倾销的重要手段。本文构建了应对生态反倾销的竞争情报体系建设指标,并应用带置信度的灰色聚类评估模型对其进行科学合理地评价,有利于改善企业竞争情报体系的建设现状,提高中国出口企业应对生态反倾销的能力。 相似文献
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[目的/意义]产品情报的有效获取能够帮助企业及时掌握市场动态及竞争态势,并有利于提升产品竞争力。对产品情报及其知识需求呈现跨领域、跨行业、多主体的综合性及深度挖掘商业价值的迫切性。[方法/过程]构建细粒度的产品情报知识元模型,通过基于证据理论的多属性融合过程,实现产品情报知识元属性集与关系集描述空间的扩展以及知识元属性关系网络的生成。[结果/结论]实例研究从业务和竞争力两个视角,实现产品情报知识元属性集的融合与深加工,为产品情报的隐性关联知识发现提供相对完备的知识基础。证明了基于证据理论的多属性融合方法对产品情报知识元融合的可行性和有效性。 相似文献
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Felipe Minozzo Carlos Leonardo Figueiredo Machado Eurico Nestor Wilhelm Rafael Grazioli Ronei Silveira Pinto 《European Journal of Sport Science》2018,18(10):1398-1404
Isokinetic hamstring-to-quadriceps (H:Q) ratios are frequently used to assess knee muscle strength imbalances and risk of injuries/re-injuries. The use of peak torque (PT) or total work (TW) to estimate joint stability may lead to different results because of the differences between these two neuromuscular variables. Thus, the current study aimed to compare the conventional and functional H:Q ratios calculated by PT and TW. Ninety-three male professional soccer players from Brazilian first division teams performed isokinetic concentric and eccentric contractions of the quadriceps and the hamstrings at 60°/s. Muscle strength balance was calculated using the conventional torque ratio (CTR) and conventional work ratio (CWR), functional torque ratio (FTR) and functional work ratio (FWR) were highly and moderately correlated between them (r?=?0.83 and r?=?0.73, respectively). The Wilcoxon statistical test revealed significant differences between CTR and CWR, as well as FTR and FWR (p?0.05). T-test demonstrated significant differences in mean CTR–CWR and FTR–FWR, whereas Bland–Altman plots showed non-consistent bias. In addition, the chi-square test demonstrated significant differences between players below the conventional reference values and functional reference values (p?0.001). In conclusion, TW ratios seem to provide distinct and additional information regarding the H:Q strength balance in professional soccer players. Moreover, taking into account that TW captures torque information throughout the entire range of motion, it is possible that TW ratios represent a more comprehensive assessment of muscle strength imbalance. 相似文献
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Jinming Zheng Seungmo Kim Geoff Dickson Veerle De Bosscher 《Journal of sports sciences》2018,36(23):2675-2683
ABSTRACTCompetitive balance is important because it enhances outcome uncertainty and therefore it promotes spectator interest, and encourages government investment in a sport. This article analyses the distribution of gold medals, medals, medal points and top eight points amongst nations in table tennis from 1988 to 2016 at the Olympic Games and the World Championships respectively. A normalised version of the Herfindahl-Hirschman Index and a coefficient of variation are calculated for each nation’s share of these performance indicators. The key findings are that China dominates both events, with successful female players being more dominant than their male counterparts. The competitive balance for gold medals has declined, whilst there is a trend towards improved competitive balance for top eight points for women, suggesting that more teams are featuring in the top eight (but not necessarily the top three) placings. This research has implications for the development of table tennis competitions. Compared to other racket sports, the issue of competitive imbalance in table tennis is particularly thorny, which threatens the long-term development of this sport. Accordingly, some measures are recommended for the International Olympic Committee and the International Table Tennis Federation to propel a more balanced development of international table tennis. 相似文献