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61.
提出并研究了一种以Visual Basic.net编程软件为平台,与PLC控制器建立通讯连接以开发风力发电机组监控系统人机界面软件的实现方法,充分利用了Visual Basic.net的强大的可视性功能。研究应用表明,Visual Basic.net编程软件平台为风机人机界面软件的开发提供了有效的新途径。 相似文献
62.
程竹 《通化师范学院学报》2007,28(4):51-53
OpenGL是当今业界最为广泛使用的三维图形技术标准.本文以模拟三维地形数据为基础,针对地理信息区域的三维地形可视化,探讨了在Visual Basic环境下实现三维地形的模拟以及三维可视化的原理和方法,并给出了部分相关的实现代码. 相似文献
63.
基于VB和单片机设计实现了多媒体计算机房综合控制系统。该系统可控制学生机的批量开启、关闭和重启,可发送即时短消息并支持通过遥控器演示PPT课件。该系统使用简便,响应迅速,既能帮助管理员完成繁复的工作,提高机房的管理效率和水平,又能帮助教师充分利用多媒体教学资源开展教学活动,提升教学效果。 相似文献
64.
发展Intemet技术为编程人员提供了更广泛的施展身手的空间.早先"Intemet应用程序"这个词只是指一些用FTP协议下载文件或浏览HTML页面的工具,如今使用Visual Basic,不仅可为Internet开发应用程序,还可把Internet技术作为一部分融入大型的解决方案中. 相似文献
65.
Nicholas P. Murray 《Journal of sports sciences》2017,35(3):241-246
Considerable research has documented that successful performance in interceptive tasks (such as return of serve in tennis) is based on the performers’ capability to capture appropriate anticipatory information prior to the flight path of the approaching object. Athletes of higher skill tend to fixate on different locations in the playing environment prior to initiation of a skill than their lesser skilled counterparts. The purpose of this study was to examine visual search behaviour strategies of elite (world ranked) tennis players and non-ranked competitive tennis players (n = 43) utilising cluster analysis. The results of hierarchical (Ward’s method) and nonhierarchical (k means) cluster analyses revealed three different clusters. The clustering method distinguished visual behaviour of high, middle-and low-ranked players. Specifically, high-ranked players demonstrated longer mean fixation duration and lower variation of visual search than middle-and low-ranked players. In conclusion, the results demonstrated that cluster analysis is a useful tool for detecting and analysing the areas of interest for use in experimental analysis of expertise and to distinguish visual search variables among participants’. 相似文献
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67.
教材中人与自然关系的内容分散、零碎,逻辑顺序不符合认识和教学规律.人与自然关系的新教学体系把分散在五章的内容集中到第二章开展教学,是教材爱国主义科学内涵的逻辑展开,是思想、道德、法制教育结合的体现.人与自然关系教学体系的重点和难点是"深入理解人与自然关系的实质".人与自然关系的实质是人一定要遵循自然规律. 相似文献
68.
The paper provides (1) a teacher-administered rating instrument for inattention without confounding the rating with hyperactivity and conduct disorder, and (2) evidence that the ratings correlate with the scores obtained from cognitive tests of attention. In Study I, the first objective was to investigate the construct validity and the inter-rater reliability of the Attention Checklist (ACL) by factor analysing the teacher ratings of 110 Grade 4 children, obtained by using the ACL. The second objective was to investigate the predictive validity of the ACL by examining the relationship between the scores obtained for the participants from teachers' ratings using the ACL and the scores obtained by participants in the lab-type attention tests. The results of factor analysis showed that a single factor labelled ‘inattention’ underlies the 12 items in the ACL. Examining the differences in performance on attention tests, the ‘low attention’ children as rated by the teachers on the ACL scored lower than the ‘high attention’ children on the objective tests of attention. These findings were replicated in Study II, which was conducted to test further the construct validity and predictive validity of the ACL. This time, only those two tests (Auditory Attention and Visual Attention) that had shown relatively poor discrimination between the high and low attention groups in Study I were, again, administered to another cohort of 97 Grade 4 children, as it was our intention to further challenge the reliability of the ACL. Overall, the results of both studies suggest that comprehensive assessment of attention skills should include both ACL and objective measures of selective attention. 相似文献
69.
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