极限与连续问题探析

对和、差、积、商及复合函数的极限与连续性中容易出错的问题进行研究，得出一些有用的结论．     

人工智能技术在汉语教学中的应用

为促进人工智能技术在我国汉语教学中的应用,实现人工智能技术与汉语教学的深度融合,对相关技术进行梳理,并列举教学应用实例,分析人工智能技术在汉语教学中的应用现状,总结案例主要应用场景、功能与实际应用中的难题。在对人工智能汉语教育全面认识的基础上,构建人工智能汉语教学应用框架,并提出相关应用建议。     

Using Collaborative Assessment to Examine the Relationship between Self-Reported Beliefs and the Documentable Practices of Preschool Teachers

A team of researchers used a collaborative assessment protocol to compare the self-reported teaching beliefs of a convenience sample of preschool teachers (N = 57) to their documentable practices (i.e., practices that could be observed, recorded, and categorized using a deductive strategy). Data were examined from survey instruments, detailed classroom observations and time-sampling, curriculum materials, and program artifacts. Results indicated that when child-directed choice/play time, emergent literacy and language development activities were emphasized, teachers self-reported beliefs were more strongly aligned with developmentally appropriate practice (DAP) as a philosophy of practice. When consistent routines, organized classrooms, preplanned curriculum, and teacher-directed learning were the dominant behaviors, the teachers were found to report more “traditional” or academic-oriented beliefs.     

试谈高校实验队伍在实验室建设与管理中的作用

高校实验队伍由教师，研究人员，实验技术人员，实验管理人员和学生组成，教师和研究人员在实验室中据主导地位，实验技术人员是实验室的骨干力量，实验管理人员是保证实验室正常工作的关键，学生是实验室建设的辅助力量。     

普通高校开发利用灰色文献的现状及措施

灰色文献,即未公开发表和非正式出版的可资利用的文献资料,目前在各高校中缺乏足够重视和有效管理。我们应转变观念,对灰色文献的价值给以充分认识,采用现代化传播手段和有效措施,开发利用,实现灰色文献的科学价值。这不仅对高校发展,而且对整个社会经济的不断发展,都将起到重要的促进作用。     

浅析罗汉果的成分及其医药保健价值

罗汉果是葫芦科植物 ,特产于我国广西 ,其干燥果实提取物对咽喉疼痛、咳嗽、胃肠不适及部分炎症等有一定疗效 ,具有开发利用的前景 .仅就罗汉果的生物学特性、干燥果实主要成分及其开发利用价值做初浅分析     

局域网故障分析

在详细分析了局域网出现故障的主要因素后,通过设计某些实例,提出了改善局域网络结构与性能的方法和途径,对局域网络的建设、投资、稳定和快速运行提供了可靠的依据。     

“网络红人”现象对高校思想政治教育工作的影响及对策

"网络红人"现象给高校思想政治教育工作带来了严重的挑战,如果利用不当就会污染高校思想政治教育环境、误导部分高校学生。高校理应对"网络红人"现象带来的负面影响采取有效应对措施:正确认知"网络红人"现象对高校思想政治教育工作的影响;健全校园网络系统,构建新型高校思想政治教育工作阵地;发挥高校优势,建设高素质思想政治教育队伍;借力校园文化,利用"网络红人"育人。     

不容忽视的教学改革趋势──《力学》多媒体组合教学试验总结

本文以综合性大学物理系基础课《力学》为试验课程，采用投影、演示、录像等多媒体优化组合教学．根据传播学理论和人体心理学生理学特点，利用教学设计原理，恰当地有针对性地引入现代化的教学媒体，使之与传统教学手段相结合，从而提高教学效率和教学质量．     

Analytic Solution to Nonlinear Dynamical Systemof Dragon Washbasin

Based on phase-plane orbit analysis, the mathematical model of piecewise-smooth systems of multidegree-of-freedom under the mode coordinate is established. Approximate analytical solution under the physical coordinate of multi-degree-of-freedom self-excited vibration induced by dry friction of piecewise-smooth nonlinear systems is derived by means of average method, the results of which agree with those of the numerical solution. An effective and reliable analytical method investigating piecewise-smooth nonlinear systems of multi-degree-of-freedom has been given. Furthermore, this paper qualitatively analyses the curves about stationary amplitude versus rubbing velocity of hands and versus natural frequency of hands, and about angular frequency versus rubbing velocity of hands. The results provide a theoretical basis for identifying parameters of the system and the analysis of steady region.