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101.
Ajax技术在在线考试系统中的应用 总被引:2,自引:0,他引:2
姚文声 《电脑编程技巧与维护》2011,1(16):69-70,75
Aiax技术采用异步通信技术,只从后台服务器取回需要的数据,避免了页面的重载,系统能够带给用户无刷新的视觉体验. 相似文献
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鱼洋 《电脑编程技巧与维护》2010,(4):84-86
对QNX实时嵌入式系统进行研究,明确实时操作系统的概念,QNX操作系统的特点。在TCP/IP协议,以及QNX的多线程编程技术理论的支持下实现了QNX嵌入式系统的通信编程,并对该通信的应用进行了简要的说明。 相似文献
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The diameter of a graph is an important factor for communication as it determines the maximum communication delay between any pair of processors in a network. Graham and Harary [N. Graham, F. Harary, Changing and unchanging the diameter of a hypercube, Discrete Applied Mathematics 37/38 (1992) 265-274] studied how the diameter of hypercubes can be affected by increasing and decreasing edges. They concerned whether the diameter is changed or remains unchanged when the edges are increased or decreased. In this paper, we modify three measures proposed in Graham and Harary (1992) to include the extent of the change of the diameter. Let D-k(G) is the least number of edges whose addition to G decreases the diameter by (at least) k, D+0(G) is the maximum number of edges whose deletion from G does not change the diameter, and D+k(G) is the least number of edges whose deletion from G increases the diameter by (at least) k. In this paper, we find the values of D-k(Cm), D-1(Tm,n), D-2(Tm,n), D+1(Tm,n), and a lower bound for D+0(Tm,n) where Cm be a cycle with m vertices, Tm,n be a torus of size m by n. 相似文献
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《Behaviour & Information Technology》2008,27(2):107-114
The number of organizations using teamwork is increasing. In this context, group potency has emerged as a key construct in group research. Moreover, in the last decades, information and communication technologies (ICT) have allowed organizations to form virtual teams. Consequently, a considerable amount of research has analysed the functioning of virtual teams. We focus on intragroup conflict as a relevant antecedent of potency in computer-mediated communication groups. Specifically, the aim of this research is to examine the role of ICT in the relationship between intragroup conflict and group potency in a longitudinal study. A laboratory experiment was carried out comparing 44 groups working in two communication media (face-to-face and computer-mediated communication). The groups developed a project over a one-month period. The results show that communication media play a moderator role between intragroup conflict (relationship and task conflict) and group potency. Implications of these results are discussed. 相似文献
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Guided by the Uses and Gratifications (U&G) perspective, this study examined the influence of unwillingness to communicate, loneliness, Internet-use motives, and Internet (CMC) use and interaction (amount and types of use and self-disclosure) in online communication satisfaction and online relationship closeness. There were 261 participants in this study. Overall, participants who perceived their face-to-face communication to be rewarding, used CMC for self-fulfillment, and disclosed their personal feelings to others tended to feel close to their online partners. Moreover, those who used the Internet for purposes of self-fulfillment and affection and intended to disclose their feelings to others felt satisfied with their online communication. The associations among the constructs extend our knowledge of the U&G theoretical model, how and why people communicate interpersonally in CMC settings, and the influence of individual differences on CMC for relational communication. 相似文献