Analysis on stability of strategic alliance： A game theory perspective

INTRODUCTION Strategic alliances have become an increasing incidence and important practice of firms pursuing various kinds of economic objectives in the last two decades of the 20th century, as globalization becomes the most important feature of the global economy. From statistical data, there exist 60 strategic alliances on average over the time frame of the Fortune top 500 companies. As a newly emerging organization pattern, strategic alliances have been accepted as one of the most eff…     

混凝土泵车的稳定性分析

混凝土泵车的稳定性是安全性指标，它是整体结构布置与设计中优先考虑的一个问题，通过对混凝土泵车在行驶及工作中稳定性的分析，指出影响稳定性的因素，为混凝土泵车的优化设计提出稳定性的设计方法。     

3阶矩阵李森林条件的一个注记

本文作者的工作是：（1）给出了3阶矩阵稳定性的李森林条件与徐道义条件等价的证明。（2）给出了3阶矩阵李森林稳定性条件的一个新证明。     

桥墩冰荷载破坏稳定性分析

为研究冬季河冰对桥梁产生的影响,针对实际工程,依据相关规范和标准对桥墩可能受到的几种类型冰荷载作用力大小进行了计算。利用有限元软件,对各类冰荷载作用下桥墩的受力情况进行了模拟并对桥墩稳定性进行了安全性评价。据此,对比分析出影响桥梁稳定性的最不利冰荷载,并提出相应的防治措施,为我国寒区水工建筑的冰害研究工作提供了理论指导意义。     

时滞Hopfield神经网络模型的稳定性分析

研究时滞Hopfield神经网络模型,平衡点的全局渐近稳定性与全局指数稳定性,通过使用不等式分析技巧和微分方程性质,得到这类模型稳定性的易于验证的时滞无关充分条件。     

充分发挥高考统计数据的作用

通过对高考统计数据的分析,既能检验试题命制的质量,帮助命题者反思以往试题中的不足之处;又能反映出某些教学环节中的情况,使教学工作者能从中发现问题,在教学中及时补缺补差,每年考试的试题尽管不同,但考查的知识范围和能力要求却是相同的,所以每年考后的数据能大致反映出近年考生的水平和现状;数据还能帮助命题工作者为控制整卷的难度提供有效的信息,使得来年试卷的总体难度保持在一个恰当的范围内。本文就以上三点来进行讨论。     

Calculating trust in domain analysis: Theoretical trust model

In recent decades, more information has become increasingly available on the Web. Every user can actively participate in the generation and exchange of information. Investigating the quality of user-generated content (UGC) has therefore become a necessity and an ever-increasing challenge. In collaborative environments where users collect, share and build a knowledge base, trust is an important factor. If, for example, we as users trust UGC on the Web, this influences our interaction with this content. The aim of our research is to propose a model for the evaluation of trust in UGC. Based on the available research results, we define a model for measuring trust in collaborative environments. Our approach is based on three dimensions: stability, credibility and quality. These three concerns are combined to create a trusted translator. We use a real-world data set of the social annotation platform Genius to calculate the value of our trust in an annotation. Based on this case study, we show which insights can be gained by calculating the trust in such an environment. When information has specific qualities, our approach will enable the user to better determine which information offers the highest level of trust.     

Tracking of Physical Fitness Components from Childhood to Adolescence: A Longitudinal Study

ABSTRACT

Childhood physical fitness relative to adult health outcomes coupled with scant longitudinal research indicates that tracking of fitness components throughout childhood/adolescence is imperative. The study examined the stability/tracking of 9 measures of fitness for boys and girls at 5 points throughout childhood/adolescence. Tracking coefficients between individual fitness measures at various age comparisons were calculated. Using a sample with recorded data at 4 time-points, tertiles (high, moderate, low) were calculated for each fitness measure for boys and girls. Stability of fitness measures was calculated. Boys outperformed girls on fitness measures at most time points. Significantly low to moderately high tracking coefficients for each fitness measure at all time points for boys (r = .21-.79) and girls (r = .23-.89) were found. Tertile ratings remained stable across the 4 time-points. Findings highlight the importance of developing healthy fitness behaviors early in life and the significance of intervention during adolescence in low-fit youth.     

一个新单参数混沌系统的混沌控制分析

提出了一个新单参数混沌系统,参数在一定范围变化时,能产生多个涡卷混沌吸引子．基于Lvapunov稳定性理论,通过设计控制策略实现了对混沌系统的有效控制,最后仿真结果表明了该方法的有效性．     

论新时期民族关系和谐与构建和谐新疆

民族关系是我国社会生活中一项重要的社会关系,发展和谐民族关系是构建和谐新疆的前提和基础,是新疆社会稳定的重要保证,对构建和谐新疆具有重要意义。和谐的民族关系有助于形成一体化的国家意识,从而自觉维护国家的统一和新疆的和谐稳定。目前,影响新疆民族关系的不和谐因素仍然存在,构建和谐新疆,就是要结合新疆的特殊区情,在解决各种民族矛盾中推进新疆和谐建设。