Structure and function of maladaptive cognitions in Pathological Internet Use among Chinese adolescents

This study empirically investigated the structure and function of maladaptive cognitions related to Pathological Internet Use (PIU) among Chinese adolescents. To explore the structure of maladaptive cognitions, this study validated a Chinese Adolescents’ Maladaptive Cognitions Scale (CAMCS) with two samples of adolescents (n1 = 293 and n2 = 609). The results of the exploratory factor analysis and confirmatory factor analysis revealed that CAMCS included three distinct factors, namely, “social comfort,” “distraction,” and “self-realization.” To examine the function of maladaptive cognitions, this study tested an updated cognitive-behavioral model in the third sample of 1059 adolescents. The results of structural equation model analyses verified both the direct effect of maladaptive cognitions on PIU and their mediating role in the relationships between distal factors (social anxiety and stressful life events) and PIU among Chinese adolescents. Theoretical and practical implications of these findings were discussed.     

计算机软件在教学中的运用

随着计算机的普及以及计算机技术的迅猛发展,计算机软件的应用已经深入到社会的各个角落。在学校,利用计算机软件进行教学早已不是什么新鲜事情了,老师想要做出一个非常好的教学课件,那就必须要用到计算机软件的帮助了。本文主要介绍了计算机软件在教学中的一些应用。     

网上拍卖系统设计分析

网上拍卖模式是电子商务的重要部分,以拍卖的形式在网上销售产品,因为其不受时间和空间限制、并且可以有效降低运营成本而具有极大吸引力.文章详细分析网上拍卖系统的功能、流程、系统设计和功能实现.希望这方面的工作对正在进行或拟进行网上拍卖系统设计的人员有所借鉴.     

Model-driven assessment of system dependability

Designers of complex real-time systems need to address dependability requirements early on in the development process. This paper presents a model-based approach that allows developers to analyse the dependability of use cases and to discover more reliable and safe ways of designing the interactions of the system with the environment. The hardware design and the dependability of the hardware to be used also needs to be considered. We use a probabilistic extension of statecharts to formally model the interaction requirements defined in the use cases. The model is then evaluated analytically based on the success and failure probabilities of events. The analysis may lead to further refinement of the use cases by introducing detection and recovery measures to ensure dependable system interaction. A visual modelling environment for our extended statecharts formalism supporting automatic probability analysis has been implemented in AToM³, A Tool for Multi-formalism and Meta-Modelling. Our approach is illustrated with an elevator control system case study.

浅谈UPS的正确使用和维护

在信息化的今天,UPS(Uninterruptible Power System)广泛地应用于信息采集、传送、处理、储存等各个环节,其重要性随着信息化发展而增强。正确使用和维护既能充分发挥其使用效率,又能延长其使用寿命,下面是我们在日常使用和维护中积累的一些经验,仅供参考。     

Investigating the relationship between perceived risks in communication and ICT-enabled communicative behaviors

We examine employees’ perceptions of communication problems in the workplace and their active communication behavioral responses when multiple information communication technologies (ICTs) are available for use. Through the lens of the situational theory of publics, we shed light on how employees adapt to increasing communication demands. We uncovered active technology-mediated behavior such as information gaining, action, and social interaction seeking, and their association with perceived risk (i.e., message, information and action). Findings suggest that technology-mediated communication behaviors are not only enabled by the use of ICTs but behavior also involves appropriate structuring of single and multiple ICTs to manage problems encountered during communication.     

SQL Server数据库在实际运用中的技巧探究

任何人在使用SQL Server数据库系统的时候,都希望自己能让SQL数据库发挥出他最佳的性能,但提供它性能的方法就是对其系统进行优化。本文主要通过笔者在日常工作生活中的经历和经验来简单讲述下SQL Server数据库在运用中的一些技巧。     

国画“留白”在包装设计中的运用

"留白"是中国绘画艺术中的一个非常重要的术语,被广泛的应用在中国传统的书画创作中。"留白"是艺术达成审美交流的中介机制,它深刻的展开了艺术的创作过程与接受过程的视野融合,具有极高的设计与文化价值,是现代包装设计师在设计思维和设计手法上可供学习和借鉴的宝库。本文从国画"留白"艺术的构成方法、风格、布置等角度进行了论述。总结了其设计特点和艺术手段,以通过对国画"留白"艺术设计理念的探讨对现代包装设计给予启发与引导。     

基于UML与Rational Rose开发的列车调度系统

探讨了用建模语言UML和由IBM开发的UML建模工具Rational Rose来开发的列车调度系统.进一步与阐述了用UML和Rational Rose建模的优越性.