MATLAB在化工仪表及自动化课程教学和实验中的应用

化工仪表及自动化是一门针对高等院校化工类专业以及其他工艺类专业开设的一门重要的专业基础课程。本文根据目前该课程在教学和实验中存在的问题,结合控制系统仿真软件MATLAB的特点和功能,详细介绍了MATLAB软件在化工仪表及自动化课程教学和实验中的应用方法。     

Until when does the effect of age on academic achievement persist? Evidence from Korean data

According to an analysis of Korean student panel survey data, monthly differences in age had a significant influence on academic achievement until middle school (lower secondary education). However, this age effect did not persist when students graduated from high school (upper secondary education). Furthermore, some evidence is found that younger students, upon entering high school, were more likely to concentrate on academic studies, and less likely to experience minor distractions, thereby compensating for their poor academic achievement in middle school.     

设计性实验的设计思想和方法

阐述在设计物理实验过程中，如何以物理思想与教学论思想为指导，根据实验课题和设计要求，来选择合理的实验方法、最佳的测量方法、合理的配套仪器、有利的测量条件，确定合理的测量次数及数据处理方法。     

试论幼师生音乐能力的培养

幼师的音乐教学 ,必须重视学生音乐能力的培养。本文针对幼师学生的特点 ,结合自己的教学实践 ,从演唱能力、弹奏能力、自弹自唱能力三方面入手 ,对音乐能力的培养 ,提出了有益的建议和方法     

基于Agent代理分布式协同设计系统研究

随着信息技术、网络技术的发展,人们对产品设计过程中的信息交流和知识共享提出了更高的要求,协同设计技术可以有效地提高设计人员之间的信息共享和资源共享。基于Agent代理,本文提出了将Web技术和Multi-Agent技术融合的分布式协同设计系统。在分析系统体系结构的基础上,着重阐述了Multi-Agent代理模型和工作原理,并将其应用于仪表产品造型设计系统中。     

《智能测控仪器》实验教学改革探索

《智能测控仪器》作为电子信息类专业的一门重要课程,具有很强的实践性,实验教学在本课程中占有相当重要的地位。本文针对《智能测控仪器》课程特点和实验教学现状,探讨改进实验教学的模式和方法。     

Preservice teachers’ perceptions of an ICT-rich learning environment: Development of an instrument

This article reports the development of an instrument to measure preservice teachers’ perceptions of the Study Landscape (SLS), which is an ICT-infused learning environment that encourages preservice teachers to direct their own learning to build a two-way relationship between theory and teaching practice. This study comprised a qualitative and quantitative part. Six factors derived from interviews with users formed the basis of the instrument: (1) Support of Learners’ Initiatives; (2) Support of Information Searches; (3) Support of Interaction; (4) Relationship with Fellow Students; (5) Relationship with Teacher Educators; and (6) Relationship with SLS Staff. Once developed, the questionnaire was responded to by 186 students. Analysis of the data supported five out of six factors.     

流量计选型错误的排查与分析

流量是工业生产过程中常用的过程控制参数,是化工行业的一个重要的生产技术指标。流量计量的准确与否,将对企业的成本核算、能源消耗等重要指标的正确计算及可信程度产生影响。因此,选择高质量、运行稳定、计量准确的流量仪表是至关重要的。     

Building a validity argument for the community of inquiry survey instrument

The purpose of this study was to provide empirical evidence to support the validity of the Community of Inquiry (CoI) model survey. The participants for this study were undergraduate and graduate students (n = 1173) enrolled in fully online (57%) and blended online courses (43%) offered through WebCT during the spring 2008 semester at a mid-sized western university. One half of the student responses were randomly selected for exploratory factor analysis while the remaining half was subjected to confirmatory factor analysis. Results from the exploratory analysis identified a three factor model which was tested through confirmatory factor analysis and found to be an acceptable fit to the predicted population model. Results from this study suggest that the CoI survey holds promise as a useful evaluation tool for providing formative and summative feedback about the effectiveness of online courses and programs.     

Development of a user-friendly instrument for identifying the learning strategy preferences of adults

Learning strategies offer a means of addressing individual differences. A programmatic line of inquiry at two universities in the United States has led to an extensive body of research related to learning strategies and to the development of two instruments. This study reports on the development of one of these instruments that can be used to quickly identify learning strategy preferences. Although this instrument, Assessing The Learning Strategies of AdultS (ATLAS), appears very simple and is easy to use, a series of multivariate statistical procedures were used to develop and validate it. These procedures are reported here in detail so that practitioners can be aware of its strong research base and use it with confidence. ATLAS can be used either for self-assessment or by an instructor in order to quickly identify how an individual learner approaches a learning task.