实验教学多媒体软件的开发研究

阐述了实验教学中多媒体的重要作用及其现实意义，介绍了多媒体软件的编制开发过程以及与网络相结合的问题，对开发实验教学软件有一定的帮助作用。     

The Effect of a Computerized Simulation on Middle School Students’ Understanding of the Kinetic Molecular Theory

The objective of this study was to evaluate the effect of a dynamic software simulation on the understanding of the kinetic molecular theory by 7th graders. Students in the control group (n = 62) studied a curricular unit that addressed the differences in arrangement and motion of molecules in the three phases of matter. The experimental group (n = 71) studied the same unit combined with a few computer lessons using a software simulation. The results indicate that the students in the experimental group scored significantly higher than those in the control group. Nonetheless, while both groups of students improved their understanding of the kinetic molecular theory, the overall achievements were very low. These findings suggest that the simulation improved the understanding of the 7th graders; however, it was insufficient in itself to promote meaningful learning. Statistically significant gender differences were not observed. This paper concludes with a discussion of the educational implications of this study.     

脉动式CVT连杆机构的运动规律研究

本文对曲柄摇块式脉动无级变速的传动机构进行了运动分析,从运动学原理对机构进行深入研究,得出该机构的最佳参数,减小脉动及动载荷,降低功率损耗,进而改善其运动及动力性能,     

改进蚁群算法的动态K-均值聚类分析

提出了一种基于改进蚁群算法的动态K-均值聚类算法思想,该算法首先利用蚁群算法的较强处理局部极值的能力,动态地确定了聚类数目和中心,然后利用蚁群聚类得到的结果,再进行K-均值聚类弥补蚁群算法的不足。两者有机结合起来可以寻求到具有全局分布特性的最优聚类,实现了基于改进的蚁群聚类算法分析。     

基于构件技术的一种报表生成器的设计

本文为动态生成需要的报表提出了构件技术的概念,使得可以通过构件技术制作报表。并且根据这种思想,建立了制作报表的模式,开发出基于构件技术的动态报表生成器,实现了报表的构件化管理和重用,实现了一表万用。     

Dynamic response analysis of a moored crane-ship with a flexible boom

The dynamic response of moored crane-ship is studied. Governing equations for the dynamic response of a crane-ship coupled with the pendulum motion of the payload are derived based on Lagrange＇s equations. The boom is modeled based on finite element method, while the payload is modeled as a planar pendulum of point mass. The dynamic response was studied using numerical method. The calculation results show that the large-amplitude responses occur at wave periods near the natural period of the payload. Load swing angle is smaller for crane-ship with flexible boom, in comparison with rigid boom. The ship surge motions have large vibrations for crane-ship with flexible boom, which were not observed for a rigid boom. The analysis identifies the significance of key parameters and reveals how the system design can be adjusted to avoid critical conditions.     

以“感性”中和“理性”的物理活力教学新渠道

物理是一门以“理性”和“严谨”为标识的科学,因此,学习物理需要缜密集中的思维逻辑力,物理课堂教学需要更多的“理性化”的特点。但感性是人类认识活动的起点,加之物理的本源及物理规律与人类生活经验有密切的联系,“感性”便可成为高中物理教育的一个新朝向,而通过视频展示、人文诠释、活动体验和实验操作这四种方式可以激活物理课堂,渗透“理性”思维,从而实现课堂活力的充分迸发。     

高校《网页设计》课程教学探讨

文章对高校计算机及相关专业<网页设计>课程的教学内容安排、教学手段及以及如何提高学生本课程的兴趣等几个方面的内容进行了探讨.     

论数字图书馆如何实施动态库服务

拟结合相关的软件技术,就网络环境下,现代图书馆向数字图书馆迈进的进程中,如何实施动态库服务问题略抒己见。     

关于MFC中类的动态创建技术的研究

动态创建对象能力是面向对象程序设计语言的特性之一，同时，它也是VC中MFC的核心技术之一。为了理解类动态创建对象能力的实现机制和原理，本文以MFC为例，通过对与动态创建有关宏的展开和改进，详细地阐述了类动态创建对象能力的实现过程。