混合序列的完全收敛性

讨论了ρ混合序列的完全收敛性,推广了已有文献中关于ρ混合序列的完全收敛性的结果,并把此结论推广到不同分布的情形.     

考虑遮挡的视频车辆跟踪

为了对遮挡情况下的运动车辆进行跟踪,提出一种基于分块的车辆跟踪算法。该算法将目标车辆以可重叠的方式划分为若干大小一致的子块。在分块的基础上估计所有子块的运动矢量,检测噪声运动矢量并进行调整,以减少运动矢量估计的误差,然后对子块进行移位以实现车辆跟踪。为了处理车辆间的遮挡现象建立了马尔可夫随机场描述子块之间的关系,利用欧氏距离定义块的邻域,并基于块的直方图构建能量函数,最后利用模拟退火法对能量函数进行优化,以对遮挡区域进行分割。实验结果表明,该算法能够对遮挡车辆进行准确跟踪。     

随机环境飞蝇模型零平衡点的指数收敛性

将Nicholson飞蝇模型推广到马尔可夫随机环境情形,并研究了该模型的平衡点收敛问题,得到了平衡点具有指数收敛的一个充分条件。     

概率论中事件独立性的几个命题

为了充分应用概率论中事件独立性概念及相关性质,简化实际解题过程,文章采用随机变量的有关独立性性质,构造指示变量研究了事件的独立性,得到事件独立性的几个命题,并给予了数学证明,完善了教材中的独立性理论,方便了实际问题的解决。最后通过举例阐述了概率计算中事件独立性的重要性。     

师范生美育的双重目标及其改革路径

针对师范生培养的特殊性,可提出师范生美育的育己和育人双重目标。育己目标指向提高师范生的艺术素养以及引导师范生走向生活的审美化和趣味化。育人目标定位于帮助师范生树立"教育需按照美的规律来实施"的教育美学观,培养他们学科美育观以及对学科美的感知能力。为了实现双重目标,师范生美育改革路径为:美育博雅课程的定位要从艺术知识型转向审美文化型;课程的设置需加大毕业学分要求,精选公共必修课,拓展选修课程门数;课程的形态应增加课程的体验性,开发多样的活动性课程。此外,教师教育类课程需凸显美育知识的普及和能力的培养;学校要创设具有艺术性、审美性的校园环境,发挥环境的美育价值。     

The Future Development of Energy-Environment-Economy Integrated Assessment Modelling

<正>One of the greatest challenges faced by the energy and economic system is the risk of environmental and climate change.The models that have been developed to study the principle and dynamics of the energy,environment,and economic system are called the     

Picturing How Life Insurance Matters

What kind of object is private life insurance? To discuss this question, this article examines how life insurance is pictured, that is, explained and concretized with words and visual images, in the promotion of private life insurance in Finland between 1945 and 2000. In principle, life insurance can only be used for assessing and securing the economic value of life. The empirical material shows, however, that life insurance, as an object, can only exist if economic value and other values constantly overflow into each other, and calculation and affect are made to intertwine. In order to objectify their potential customers' lives as economic potential, as commodities, insurance companies have indeed had to objectify life – yet not only in terms of monetary value, but simultaneously and as importantly, also as something that is irreducible to monetary value. Hence the promotion of life insurance enacts a double stabilization of objects. On the one hand, advertisements and leaflets show how life insurance matters, what it is capable of, and thus stabilize the understanding of insurance itself as a tool. On the other hand, the promotional materials both stabilize and mobilize ‘life’ as an assemblage of heterogeneous practices and modes of valuation that is irreducible to economic potential.     

运用双级数控选模法对体院教师工作状况(成绩)综合评定的实验研究

本文根据统计学原理、控制理论及人的认知规律研究设计出了双级数控选模评定模型,并试图将它应用于对体院教师工作状态(成绩)的综合考评,经过实验验证和理论分析,表明这一办法具有较强的科学性,且经济实用,达到了评定考核中减少人为因素影响、简化指标体系的目的。     

连续分布现金流的经济指标概率分析

本文着重介绍了年现金流量的随机性和连续性,并叙述了连续分布现金流的经济指标的概率分析。整个分析是按独立和相关两种情况进行的。     

背越式跳高起跳技术特征及专项力量训练原则

本文对背越式跳高起跳技术特征和专项力量特征进行分析,提出了起跳专项力量训练的练习原则和方法。指出:背越式跳高是“双动力”起跳;起跳专项力量特征表现在起跳的结构特征、肌肉工作特征和技术特征;起跳专项力量训练过程是将起跳技术环节化,环节技术力量化,环节力量专项化,专项力量整合化,整合力量速度化,速度力量技术化。