试论我国产品责任制度立法之完善

从八十年代以来,我国先后颁布了一些有关产品责任制度方面的法律法规,对调整产品责任关系,有效保护广大消费者合法权益,保障社会经济秩序正常运行,起到了十分重要的作用.但是随着时间的推移和社会经济的变化,其不完善之处已日益明显,进一步完善我国产品责任制度势在必行.     

兼并效应与产品覆盖策略

在行业寡头垄断竞争中, 引入产品覆盖策略竞争的变量, 把企业兼并时的竞争假定为两 个阶段两种变量: 先是产品覆盖策略竞争, 后是产品产量竞争, 并设计了一个描述这种兼并竞 争的模型. 在此基础上, 分析了参与和未参与兼并的企业的产品覆盖策略变化对各企业利润和 价格的影响, 在一定程度上解释了兼并悖论. 我们赞成适度的兼并控制政策, 但在经济萧条时 期可适当放宽.     

PARAMETER ESTIMATION AND APPLICATIONS FOR A GENERALISATION OF THE BETA-BINOMIAL DISTRIBUTION

A three-parameter generalisation of the beta-binomial distribution (BBD) derived by Chandon (1976) is examined. We obtain the maximum likelihood estimates of the parameters and give the elements of the information matrix. To exhibit the applicability of the generalised distribution we show how it gives an improved fit over the BBD for magazine exposure and consumer purchasing data. Finally we derive an empirical Bayes estimate of a binomial proportion based on the generalised beta distribution used in this study.     

一种高性能目标识别融合算法

考虑到目标类型数和传感器扫描次数对识别的影响，提出了一种改进的多传感器多目标识别相关算法，导出了新的累积融合公式。对多传感器多目标识别融合作了计算机模拟，模拟结果证实了改进的算法在性能上有明显的提高。     

一类有广泛适用性的综合控制算法

将闭环极点配置、史密斯予估和自适应控制策略有机地结合起来,提出了一类单、多变量自校正史密斯予估综合控制算法。并用数字仿真进行了验证。     

过客：夕阳余晖下的彷徨

我在"教"中学,"研"中学,"撰"中学,作为现代文学的学习或研究者,至少应该在"阶梯四层次"、"三点连一线"之中有自己的"操作实践".在"古与今"、"中与外"、"雅与俗"和"传统方法和新方法"上有较为宽阔的"知识疆域".在科研选题上先得去作学术"勘探"和"考察",这种的选题才有广阔的开拓空间和一定的学术价值.在科研上我期望能完成"起家"、"转移"、"回归"的三部曲,这三部曲愿是一个"螺旋形上升"的过程.     

玉林话“好+形容词+定”结构的音变及其意义

玉林话中的“好 +形容词 +定”结构是由副词“好” (相当于现代汉语的“很”)加单音节或双音节形容词和助词“定”组成的结构形式。从语音构成看 ,有本调和变音之别 ,其词汇意义也随之改变 ,读本调时表示程度重 ,读变音时则常表示程度轻 ,且大多数带有令人喜爱的色彩。该结构主要作谓语和补语。言语色彩上可随形容词意义的不同而有褒贬上的区别。     

The Media and Genetically Modified Foods: Evidence in Support of Social Amplification of Risk

Empirical examinations of the "social amplification of risk" framework are rare, partly because of the difficulties in predicting when conditions likely to result in amplification effects will occur. This means that it is difficult to examine changes in risk perception that are contemporaneous with increases and/or decreases in social or media discussion of the risks associated with a particular risk event. However, the collection of attitude data before, during, and after the increased reporting of the risks of genetically modified food in the United Kingdom (spring 1999) has demonstrated that people's risk perceptions do increase and decrease in line with what might be expected upon examination of the amplification and attenuation mechanisms integral to the framework. Perceptions of benefit, however, appeared to be permanently depressed by negative reporting about genetically modified food. Trust in regulatory institutions with responsibility for protecting the public was not affected. It was concluded that the social amplification of risk framework is a useful framework for beginning to explain the potential impact on risk perceptions of a risk event, particularly if that risk event is presented to the public as a new hazard occurring in a crisis context.     

时距估计干扰效应的研究与思考

已有的研究从不同作业类型下的干扰效应和相关的理论解释两个方面对时距估计干扰效应进行了剖析 ,未来的研究应以分段 /综合模型为基础进行探讨 ,时距加工的认知神经研究促进了人们对时间信息加工实质的理解。