排序方式: 共有41条查询结果,搜索用时 31 毫秒
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作者介绍了基于Web的CAI教学信息管理系统(九五国家重点科技攻关项目)的开发背景及采用先进的网络技术解决的主要问题,并给出一个实例,最后对基于Web的数据库开发提出几点建议。 相似文献
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吴晓秋 《辽宁省交通高等专科学校学报》2007,9(1):92-93
本文介绍了使用VB进行计算机辅助教学(CAI)的开发步骤。提出掌握一定计算机知识的专业教师应加快开发相应学科的CAI课件,以计算机促进教学。 相似文献
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本文结合计算机辅助教学在全国范围内日益广泛应用的发展趋势,阐明了开发性能优良、适应性强的写作工具的重要性。文中提出了诸如基本概念单元和关系链等一系列重要概念,在此基础上较详细地介绍了一个智能型CAI课件写作工具AUTO-CW的研制技术。 相似文献
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基于Web的工程材料课程CAI设计 总被引:1,自引:0,他引:1
运用多媒体技术和网页制作工具 ,开发了基于 Web的工程材料课程 CAI,阐述了网络课程页面设计的原则、动画制作和网上讨论等功能的实现方法 相似文献
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J. N. Kim H. Y. Kim S. S. Yoon S. D. Sa 《International Journal of Automotive Technology》2008,9(6):649-657
A fully three-dimensional model was used to investigate the optimal value for intake valve lift in a CAI engine. Uniform mixing
in the engine is a key parameter that affects the auto-ignition reliability and thermal efficiency. The method of intake of
the air supply often determines the uniformity (or quality) of the fuel-air mixture. In this paper, four strategies were applied
for controlling the swirl intensity of intake air. The variation of the intake valve lift induces different swirling and tumbling
intensities. Both experimental data and 1D WAVE software (Ricardo, Co.) were coupled with the 3D model to provide pressure and temperature boundary conditions. The initial condition of the
EGR mass fraction was also provided by the 1D model. The benchmark scenario (Case 1) was considered as a valve lift with 2
mm for all intake valves. We found that an intake valve lift of 6 mm with the other intake valve closed (i.e., Case 5) yielded
the largest swirling (helical motion in the axial direction) and tumbling, which in turn rendered optimal fuel-gas mixing.
We also found that fuel distribution affected the auto-ignition sites (or spot). The better the mixing, the greater the gas
temperature and combustion efficiency achieved, as seen in Case 5. The NOx level, however, was increased due to the gas temperature.
The optimal operating condition is selected from the viewpoints of environmental protection and combustion efficiency. 相似文献
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作者介绍了一个与实际教学内容相符的CAI教学软件的开发和应用例。并对当前职工教育中如何开发多媒体CAI教学软件,作了简单讨论。 相似文献
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计算机技术、网络技术、多媒体技术正在飞速发展而且应用日益广泛,把多媒体CAI课件作为一种辅助教学手段引进体育教学课堂,是21世纪高校体育改革的必然趋势;本文通过游泳教学实践,探讨了多媒体技术在水上专业游泳教学中的应用,实验表明:有显著性的差异,教学效果优于传统教学. 相似文献
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探讨了微机上凸轮廓线参数化设计CAI/CAD系统的设计和实现,介绍了Windows95操作系统下,用VB5(VisualBasic5)开发的常用从动件运动规律凸轮线设计交互式软件的基本思想,过程和方法,简述了软件系统的功能。 相似文献