数据集成技术综述

从现行信息需求出发,介绍了数据集成技术发展的必要性,讨论了已有的数据集成技术,分析了这些技术的优缺点,介绍了网格技术、本体技术两个新的异构数据集成技术。在此基础上给出了本体技术和中间件相结合数据集成解决方案。最后,提出了数据集成方法的发展方向。     

基于MFC框架的ADO访问技术

VC++为应用程序提供了多种数据库访问技术,如ODBC技术、OLE DB技术、MFC ODBC技术、DAO技术以及ADO技术。简单描述了相关技术的内涵,通过用户登录功能的实现详细阐述了ADO数据库访问技术。     

浅谈蓝牙技术的发展现状和前景

蓝牙技术是通信技术的革命性变革。本文首先概括地介绍了蓝牙技术的概念及特点,在此基础上,阐述了蓝牙技术的系统构成,然后,分析了蓝牙技术的主要应用,提出了蓝牙技术的发展现状,最后,对蓝牙技术的发展前景进行了展望。     

浅析计算机通信与网络发展的应用技术

随着信息技术的发展,计算机通信技术与网络技术取得了迅速发展。计算机通信技术与网络技术的应用范围也越来越广。这些技术的应用有效提升了计算机使用效率。通过描述计算机通信技术与网络技术,重点讲述了计算机移动技术、宽带技术以及多媒体技术,技术使用推动社会稳健发展。     

计算机图像处理技术的探析

计算机图像技术的发展及应用,在诸多方面推动了现代社会的发展。该文概述了计算机图像处理技术,并在此基础上论述了计算机图像处理技术的要点及研究方向,阐述了新时期计算机图像处理技术的发展趋势。最后,基于计算机图像技术的发展,论述了计算机图像处理技术的应用。该文通过对计算机图像处理技术的全面论述,以强化对其认识,推动计算机图像处理技术的相关研究。     

基于WEBVR和RIA技术的三维虚拟社区研究与应用

该文从VR和WEB技术的发展入手,对基于WEBVR技术的三维虚拟社区的特点以及发展前景进行了分析,同时介绍了RIA技术体系特点。并据此提出了基于WEBVR和RIA技术的三维虚拟社区的技术架构,详细介绍了基于WEBVR技术和RIA技术的三维虚拟社区的信息组织、存储以及交互等关键技术问题。最后介绍了WEBVR和RIA技术在未来网络交互中具有的广泛应用前景。     

机电一体化技术发展的探讨

机电一体化是系统技术、计算机与信息处理技术、自动控制技术、检测传感技术、伺服传动技术和机械技术等多学科技术领域综合交叉的技术密集型系统工程。新一代的CNC系统这类典型机电一体化产品正朝着高性能、智能化、系统化以及轻;量、微型化方向发展。机电一体化是现代科学技术发展的必然结果,本文简述了机电一体化技术的基本概要和发展背景。综述了国内外机电一体化技术的现状,分析了机电一体化技术的发展趋势。     

分布式计算技术综述

在过去的20多年间出现了大量的分布式计算技术,如中间件技术、网格技术、移动Agent技术、P2P技术以及最近推出的WebService技术等。每一种技术都得到了一定程度的认同,解决了特定范围内的分布式计算问题。但现有的分布式计算技术都存在一些没有解决的问题,影响了分布式计算技术的使用和普及。融合多种分布式计算技术,满足分布式计算的需要,这是未来研究的方向,也是分布式计算顺利发展的关键。     

信息安全技术发展趋势分析

信息时代信息安全越来越重要。信息安全技术的发展为信息安全提供了有力保障。本文介绍了信息安全技术的分类以及主要信息安全技术的现状、发展趋势,其中主要介绍了密码学、安全操作系统、网络隔离技术、网络安全行为监管技术、容灾与应急处理技术、身份认证技术及可信计算技术的现状与发展趋势。     

信息安全技术发展趋势分析

信息时代信息安全越来越重要。信息安全技术的发展为信息安全提供了有力保障。本文介绍了信息安全技术的分类以及主要信息安全技术的现状、发展趋势,其中主要介绍了密码学、安全操作系统、网络隔离技术、网络安全行为监管技术、容灾与应急处理技术、身份认证技术及可信计算技术的现状与发展趋势。     

智能建筑空调机组监控技术及其系统结构

针对目前智能建筑中几种常见的中央空调机组单元配置及其运行机制,简要分析了采用网络化数字监控技术的空调机组的工作原理,并说明了此类空调配置方案的控制系统结构及其性能特点和应用场合。     

How do employees prioritise when they schedule their own shifts?

We investigated how employees prioritised when they scheduled their own shifts and whether priorities depended on age, gender, educational level, cohabitation and health status. We used cross-sectional questionnaire data from the follow-up survey of an intervention study investigating the effect of self-scheduling (n = 317). Intervention group participants were asked about their priorities when scheduling their own shifts succeeded by 17 items covering family/private life, economy, job content, health and sleep. At least half of the participants reported that they were giving high priority to their family life, having consecutive time off, leisure-time activities, rest between shifts, sleep, regularity of their everyday life, health and that the work schedule balanced. Thus, employees consider both their own and the workplace's needs when they have the opportunity to schedule their own shifts. Age, gender, cohabitation and health status were all significantly associated with at least one of these priorities.

Practitioner Summary: Intervention studies report limited health effects of self-scheduling. Therefore, we investigated to what extent employees prioritise their health and recuperation when scheduling their own shifts. We found that employees not only consider both their health and family but also the workplace's needs when they schedule their own shifts.     

基于信息甄别的战略网络伙伴企业选择

论文研究了战略网络核心企业在缺乏伙伴企业的实际业务能力、服务成本等方面信息的情况下,通过信息甄别原理设计不同的报酬合同来让伙伴企业选择,从而根据伙伴企业选择结果来判断其真实的能力或类型,避免了逆向选择问题的发生。     

From the Editor

Business firms are increasingly concerned with the education and learning of their employees.They recognize that their human capital is their most valuable resource, and they want to enhance their organization's effectiveness by ensuring that their people continue to develop intellectually.     

肢体残疾人使用板式家具的设计实践

在日常生活中,肢体残障人士因其身体的种种不便,经常需要别人帮助。开发为残疾人设计的板式家具是让残疾人以最大限度地"自己完成"为设计目标,最大可能地帮助残疾人自己料理生活,提高生活质量。尽量减少照料人员时间和精力,同时还会增加残疾人的自信心,拓展其私人的生活空间。     

Impact of online resources on informal learners: Parents’ perception of their parenting skills

The Internet and Web technology development have opened up new ways for people to communicate, gain new information and increase their knowledge. One particular area of interest is that of using online resources to empower informal learners to increase their knowledge at their own time and space. One could look at an online resource as a public library being brought to the homes of such informal learners. The goal of the study described in this paper was to present evidence of the impact of online resources on such informal learners. In this study, the informal learners were a group of parents with young children aged between 0 and 6, and the knowledge being learned informally was that of their knowledge of and attitudes to their parenting skills. This study used an online parenting portal, KidzGrow Online, to identify if and how an online resource could impact on the group of parents with regard to the time they spent with their children, their own perceived level of knowledge of their children’s development, and the level of their self-confidence in their parenting role. The study showed that after a period of three months, significant differences could be observed between the responses from parents who had access to the online resource and those from parents who did not.     

Student engagement in course-based social networks: The impact of instructor credibility and use of communication

Social network sites provide the opportunity for building and maintaining online social network groups around a specific interest. Despite the increasing use of social networks in higher education, little previous research has studied their impacts on student's engagement and on their perceived educational outcomes. This research investigates the impact of instructors' self-disclosure and use of humor via course-based social networks as well as their credibility, and the moderating impact of time spent in these course-based social networks, on the students' engagement in course-based social networks. The research provides a theoretical viewpoint, supported by empirical evidence, on the impact of students' engagement in course-based social networks on their perceived educational outcomes. The findings suggest that instructors who create course-based online social networks to communicate with their students can increase their engagement, motivation, and satisfaction. We conclude the paper by suggesting the theoretical implications for the study and by providing strategies for instructors to adjust their activities in order to succeed in improving their students' engagement and educational outcomes.     

Confidence and competition online: ESL student perspectives on web-based discussions in the classroom

English as a Second Language (ESL) students bring a diverse array of perspectives on language learning that inform how they negotiate different kinds of spaces in the university writing classroom. This study addresses the variance in how three different ESL students participated in web-based discussion boards and chat rooms in their first-year university writing course. Documenting students’ perceptions of technology provided pedagogical insight into how students took up or dismissed particular kinds of web-based writing. This study found that individual students made choices in their web-based writing in ways that reflected their previous experiences with technology and writing, their views of themselves as students and writers, and their relative comfort level with their peers in the classroom. However, their choices were also constrained by the pedagogical structure of the course, including the centrality of the instructor and the institutional directive for individualized assessment.     

Cooperation in the evolutionary iterated prisoner’s dilemma game with risk attitude adaptation

The Iterated Prisoner’s Dilemma (IPD) game has been commonly used to investigate the cooperation among competitors. However, most previous studies on the IPD focused solely on maximizing players’ average payoffs without considering their risk preferences. By introducing the concept of income stream risk into the IPD game, this paper presents a novel evolutionary IPD model with agents seeking to balance between average payoffs and risks with respect to their own risk attitudes. We build a new IPD model of multiple agents, in which agents interact with one another in the pair-wise IPD game while adapting their risk attitudes according to their received payoffs. Agents become more risk averse after their payoffs exceed their aspirations, or become more risk seeking after their payoffs fall short of their aspirations. The aspiration levels of agents are determined based on their historical self-payoff information or the payoff information of the agent population. Simulations are conducted to investigate the emergence of cooperation under these two comparison methods. Results indicate that agents can sustain a highly cooperative equilibrium when they consider only their own historical payoffs as aspirations (called historical comparison) in adjusting their risk attitudes. This holds true even for the IPD with a short game encounter, for which cooperation was previously demonstrated difficult. However, when agents evaluate their payoffs in comparison with the population average payoff (called social comparison), those agents with payoffs below the population average tend to be dissatisfied with the game outcomes. This dissatisfaction will induce more risk-seeking behavior of agents in the IPD game, which will constitute a strong deterrent to the emergence of mutual cooperation in the population.