移动学习模式探讨及系统架构设计

移动学习应用环境日趋成熟。在此背景下,本文就移动学习的定义与范畴、移动学习的特征进行了探讨;提出了移动学习的两类模式;在此基础上对移动学习系统的架构进行了设计,为移动学习模式在教育教学中的进一步应用奠定了基础。     

对手机媒体的传播学思考

手机媒体是一种继报纸、广播、电视、网络四大媒体之后出现的、以手机为载体的媒体,手机媒体传播的特点是即时的大众传播和人际传播的结合,我们可以称之为"人际大众传播"。本文认为,作为"跨媒体"时代信息传播的重要成员,手机媒体对大众传播的广泛参与,优化了传播过程,弥补了以往大众传播的缺陷,同时也打破了主流媒体原有的传播思路与格局,对主流媒体产生了极大的影响。     

Design and implementation methodology based on Petri net formalism of flexible manufacturing systems control

This paper presents an aided design methodology of flexible manufacturing system control with a view to industrial implementation. The approach considered through a modelling phase, the a validation phase by simulation and finally a distributed implementation phase. In the modelling phase, based on the Petri net formalism, we demonstrate the hierarchical aspect which separates the part flow control and the product resource control. In addition, we emphasize generic aspects which allow us to use an object-oriented approach. These aspects and the set of modelled objects are directly used in the simulation and production phases after an automatic translation in an implementation language (ADA in our case). In consequence, the distributed location for those two phases is well facilitated from the viewpoint of the approach used.     

Ranking paired contestants

The ranking of paired contestants (players) after a series of contests is difficult when every player does not play every other player. In the 1975 JASA Mark Thompson presented a maximum likelihood solution based on the assumption that the probability of any one player defeating any other is a function only of the difference in their ranks. Here the linear approximation to that likelihood is shown to lead to a nonparametric measure of the efficacy of the ranking, called the net difference in ranks (NDR) , which is the sum of the differences in ranks of the paired players in the observed contests that agree with the ranking minus the sum of the differences in ranks in the observed contests that disagree with the ranking (upsets) . The subject is part of a large literature that has been consolidated by H.A. David in The Method of Paired Comparisons (1963, 1988). The method was introduced by the psychophysicist Fechner in 1860 and has been widely applied to sensory testing,     

英语网络语言理据刍议

英语网语成因复杂,既受社会因素、心理因素、黑客因素影响,又同人类认知及语言自身发展规律密不可分。深层次探析该语言现象的理据,为研究汉语网语及未来语言的发展趋势提供参考。     

The reality of net capital gains and annual profit on NZ primary producing businesses: data from a recent survey of all farm types

ABSTRACT

Annual net cash returns and net capital gains provide farmers with their actual and potential monetary rewards, respectively. This article reports on a national farm survey showing both actual and potential returns, on average, are not as high as might be imagined. This is supported by the findings of earlier studies and has implications for rural societies and their associated economies. Data on income, expenses and profit is presented as is data on farm value changes over the life of each farm. The information is adjusted for inflation to provide ‘real’ data. The profit and net capital gain figures are divided into groupings based on a range of criteria such as total farm capital, and labour compliment as a reflection of farm size. Statistically significant differences occur for some groupings such as farm type and farm size.     

构建流动党员动态管理机制的探索

从整体上看，流动党员的管理无论是在管理思路上还是在管理方式上仍没有走出计划经济时代以单位管理为主、以行政管理为主的被动状态。构建流动党员动态管理机制的主要措施：创新工作思路，党员动态管理应以遵循科学发展观为基本原则；探索有利于党员动态教育管理的有效方法；实施科学管理，健全有利于党员动态教育管理的长效机制。     

知识流模型及其在航天企业中的应用

知识管理的理论和实践吸引了众多学者和企业家的关注,但在具体的实施方法上一直没有形成共识。管理的对象是“知识”,对于知识流动的理解、监测乃至控制是顺利实施知识管理项目的基础。已有的研究对知识流的讨论集中于描述概念,或通过统计分析或调查问卷得到对专利、引用等知识流动的描述。把Petri网理论用在对知识流进行刻画中,提出知识流的Petri网模型,能够描述知识分布的拓扑结构、知识存量、一定时期的知识流量和流速,使得管理人员便于监控和管理知识流动,更好地实施知识管理。把基于Petri网的知识流模型应用于航天企业中,通过实证分析说明该知识流模型对知识流动的刻画能力,并通过对现状的分析,为改进知识流动效率,实现知识管理目标提供支持。     

大学英语教学与综合能力培养

本文根据修订后的<大学英语教学大纲>,倡导在教学实践中运用现代外语教学理论,推行以学生为主体以实践为中心的教学模式,打好大学生英语语言基础,提高大学生运用英语语言的综合能力.     

高校大学生上网情况的调查与思考

近年来,"网络化"作为以信息技术为中心的新技术革命的重要特征已影响到社会各个领域,高等院校是中国社会"网络化"的发展前沿。为了了解和掌握大学生上网的基本情况、打好高校思想政治教育工作的主动仗,笔者对湖南地区六所高校中随机抽取的1000名学生的上网情况进行了调查分析,并从网络管理(道德与法律结合)、德育网站(教育与服务、趣味结合)、学生思想(调研与疏导结合)、师资队伍(引进与深造结合)等四个方面对高校如何进一步加强大学生的网络教育提出了建议,力争能提高高校思想政治教育工作的针对性和实效性。