基于微机的12导同步心电波形数据库的建立

介绍了12导同步心电波形数据库生成系统的设计过程及180例波形数据库建立的步骤。该数据库的建立对我国心电分析和诊断自动化进程有着重要的意义。     

Understanding problem solving behavior of 6–8 graders in a debugging game

Debugging is an over-looked component in K-12 computational thinking education. Few K-12 programming environments are designed to teach debugging, and most debugging research were conducted on college-aged students. In this paper, we presented debugging exercises to 6th–8th grade students and analyzed their problem solving behaviors in a programming game – BOTS. Apart from the perspective of prior literature, we identified student behaviors in relation to problem solving stages, and correlated these behaviors with student prior programming experience and performance. We found that in our programming game, debugging required deeper understanding than writing new codes. We also found that problem solving behaviors were significantly correlated with students’ self-explanation quality, number of code edits, and prior programming experience. This study increased our understanding of younger students’ problem solving behavior, and provided actionable suggestions to the future design of debugging exercises in BOTS and similar environments.     

热平衡过程与RL电路暂态过程的比较

在研究热平衡随时间变化过程的规律时,根据相似性原理,通过和电磁学中的RL电路暂态过程的对比,得出其基本物理规律。     

任意方向的原子轨函

用旋转变换得到了任意方向上,由(n,l,m,m_s)四个量子数标记的原子轨函。     

科学技术发展规划实现度评价研究--以《陕西省“十五”科学技术发展规划》目标为例

为了科学评价陕西省“十五”规划目标值的阶段实现程度,选取《陕西省“十五”科学和技术发展规划》目标中可量化的指标,形成指标体系。在分析研究的基础上,建立模型对陕西省“十五”科技规划目标实现度进行测算评价。结果显示,“十五”前半期,陕西省科技规划目标实现度总体态势良好,其中科技产出成效显著,科技人力资源投入增长,但创新财力投入不足,高新技术产业化水平较低。     

论12min跑测验在高校体育教学中的运用

针对目前大学生体质逐年下降的问题,普通高校体育应以大众健身运动为主要工作,以开展有氧代谢运动为主要方式,以增强心脑血管系统机能为主要目标。提出在普通高校体育教学中开展12min 跑测验的生理学价值、测量学价值和心理学价值,以及在实践过程中的可操作性,并根据5 年的教学实践,制定了大学生12min 跑测验的评价标准,供有关部门参考。     

Specifying Hotel Guestroom Reservation ystem Using Z Notation

The use of formal specification in software development is becoming increasingly prevalent. The Z nota-tion is a formal method, a language, and a style for expressing formal specification of software systems. This paperpresents a part of the specification work on a hotel guestroom reservation system.     

第12届欧洲杯足球赛进攻战术运用的探讨

通过对第12届欧洲杯足球赛各相关数据统计分析,并结合第11届欧洲杯赛及第17届世界杯赛的有关资料统计,探讨本届杯赛中进攻战术运用的基本特征,结果显示本届杯赛功利足球盛行。边路进攻突显威力,角球战术倍受重视,快速传接与防守反击战术的运用与推广是本届杯赛的一大特色。