试论股份合作制在基层农机服务 组织中的推行与完善

近年来为适应农村经济发展的需要 ,我国农机服务组织推行股份合作制的步伐日益加快。但是在股份合作制改造过程中也出现了一些问题 ,如改制不规范 ,政府职能部门的协调和服务功能不配套 ,产权关系不明晰等等。文章对存在的问题及问题产生的原因进行了剖析 ,并提出了解决问题的相应对策     

我国企业资产减值会计计量方法的应用研究

认为财政部新颁布的《企业会计制度》要求企业计提“8项减值准备”,但在会计实务中由于发生减值的原因很多 ,而现行规定处理方法的可操作性又不够具体。因此 ,探讨企业切实可行的资产减值会计计量方法就显得非常必要 ,继而通过研究资产的特征及会计计量属性 ,为企业提供可选择的资产减值计量方法     

An Interview with Georg Lind

Georg Lind is being interviewed by Helen Haste about his work in moral psychology. In the interview, he discusses the meaning and measurement of moral competencies, which he sees as crucial to bridge the gap between moral ideals and action, and to maintain modern democracies, which rely on the enactment of shared moral ideals. Lind has carried out and inspired one of the largest research programs in moral psychology, including longitudinal, cross-cultural, intervention, and experimental studies. His new methodology, the Moral Judgment Test, has been translated and adapted into many languages. Lind has also contributed much to the improvement and dissemination of educational methods to foster moral competencies. The intellectual and biographical roots of his interests are explored.     

全速范围直接转矩控制新型建模与研究

提出了一种适合于全速范围的直接转矩控制系统仿真模型。针对PI参数对系统的影响,改进了PI速度调节器的设计,改善了系统的磁链和转矩控制性能。同时给出了基于MATLAB/SIMULINK的系统仿真模型,仿真结果表明了该方法的正确性,能实现六边形磁链轨迹和近似圆形磁链轨迹的平滑切换。     

A Non-parametric Frailty Model for Temporally Clustered Multivariate Failure Times

Abstract A model is introduced here for multivariate failure time data arising from heterogenous populations. In particular, we consider a situation in which the failure times of individual subjects are often temporally clustered, so that many failures occur during a relatively short age interval. The clustering is modelled by assuming that the subjects can be divided into ‘internally homogenous’ latent classes, each such class being then described by a time‐dependent frailty profile function. As an example, we reanalysed the dental caries data presented earlier in Härkänen et al. [Scand. J. Statist. 27 (2000) 577], as it turned out that our earlier model could not adequately describe the observed clustering.     

潜在客户资产测量研究

客户资产由当前客户资产和潜在客户资产两部分组成，对潜在客户资产测量问题尚未有系统的研究。在客户购买行为建模研究的基础上，提出由客户获取预测分析、客户购买行为分析和客户费用分析组成的潜在客户资产测量方法框架，总结了可用的模型，并用实证案例说明；提出利用当前潜在客户资产分析矩阵分析指导投资和管理决策的方法。     

湿蒸汽两相流流量及干度的双参数测量研究

本文采用孔板及均速管组合形式,对汽-水两相流的流量及干度的双参数测量进行了实验研究。实验结果表明,这种测量方法可以满足高干度湿蒸汽测量的要求,具有很好的工业适用性。     

基于双恒流源法的高精度应变测量技术

提出了一种新颖的基于双恒流源法六端比例测量原理的应变测量技术,介绍了其测量原理及误差分析和校准技术,实现了高精度应变测量。给出了利用该测量原理设计的多通道应变仪测试结果。实验室测试及在某大型离心载荷试验中运行表明,该应变仪具有较高的测量精度、稳定性、抗干扰性和可靠性,其设计原理和方法对于工程设计与应用具有一定的参考价值。     

诚信是精神文明的重要尺度

社会的发展要求信誉的提高与之相适应,社会信誉的建设是中国特色社会主义政治文明建设的一项重要内容。由于受主客观因素的影响,信誉缺失已成为社会转型时期的一种道德病态。文章从社会信誉的作用和特征入手,提出相应的对策:构建社会信誉制度,加强社会信誉的立法,加大对失信行为的处罚力度,打造诚信政府,等等。     

Modelling map positional error to infer true feature location

The authors consider the issue of map positional error, or the difference between location as represented in a spatial database (i.e., a map) and the corresponding unobservable true location. They propose a fully model‐based approach that incorporates aspects of the map registration process commonly performed by users of geographic informations systems, including rubber‐sheeting. They explain how estimates of positional error can be obtained, hence estimates of true location. They show that with multiple maps of varying accuracy along with ground truthing data, suitable model averaging offers a strategy for using all of the maps to learn about true location.