英语教学活动中应注意发挥学生的多种智力元素

以霍华德·伽德纳(HowardGardener)的多种智力元素理论为基础,分析了如何利用9种智力元素解决教学过程中遇到的问题,并对利用不同的智力元素开拓更深层、更丰富且具有独特个性的学习方法进行了探讨。采用Lazear提出的循序渐进方法,对教学的四个阶段,即唤醒智力元素、扩大智力元素、智力元素传授以及智力元素迁移分别进行了阐述。     

Residual stress analysis and bow simulation of crystalline silicon solar cells

The pressure to reduce solar energy costs encourages efforts to reduce the thickness of silicon wafers. Thus, the cell bowing problem associated with the use of thin wafers has become increasingly important, as it can lead to the cracking of cells and thus to high yield losses. In this paper, a systematic approach for simulating the cell bowing induced by the firing process is presented. This approach consists of three processes: (1) the material properties are determined using a nanoidentation test; (2) the thicknesses of aluminum (Al) paste and silver (Ag) busbars and fingers are measured using scanning electron microscopy; (3) non-linear finite element analysis (FEA) is used for simulating the cell bowing induced by the firing process. As a result, the bowing obtained using FEA simulation agrees better with the experimental data than that using the bowing calculations suggested in literature. In addition, the total in-plane residual stress state in the wafer/cell due to the firing process can be determined using the FEA simulation. A detailed analysis of the firing-induced stress state in single crystalline silicon (sc-Si), cast, and edge-defined film-fed growth (EFG) multi-crystalline silicon wafers of different thicknesses is presented. Based on this analysis, a simple residual stress calculation is developed to estimate the maximum in-plane principal stress in the wafers. It is also proposed that the metallization pattern, Ag busbars and fingers screen printed on the front of a solar cell, can be designed using this approach. A practical case of a 3-busbar Si solar cell is presented.     

数控车床切断与切槽时的振刀分析及解决方法

本文从不同方面阐述了数控车床切断及切槽时产生振刀的原因,并探讨了消除振刀所采取的措施。     

The impacts of network centrality and self‐regulation on an e‐learning environment with the support of social network awareness

An e‐learning environment that supports social network awareness (SNA) is a highly effective means of increasing peer interaction and assisting student learning by raising awareness of social and learning contexts of peers. Network centrality profoundly impacts student learning in an SNA‐related e‐learning environment. Additionally, self‐regulation behavior significantly influences online learning of students. However, exactly how network centrality and self‐regulation influence learning behavior and effectiveness in an e‐learning environment remains unclear. Therefore, this study investigates how both variables (ie, network centrality and self‐regulation) impact student learning in an SNA‐related e‐learning environment. Analytical results indicate that the student group with high‐level centrality and low‐level self‐regulation more significantly progresses in learning achievement than the other groups. The second finding shows the group also has the highest number of students asking for help, revealing they have the highest system utilization rate.     

口译教学培训中的公共演讲

公共演讲是口译教学不可切分的环节,增加演讲操练可培养学生口译必备的语言能力、思维能力和心理素质。针对地方高校口译教学演讲训练课时不足的现状,可通过增加培训课时、丰富操练形式、扩展训练平台、扩充评估媒介的方式,结合定题演讲、即兴演讲、演讲口译对学生进行训练,同时将评估主体从教师向学生拓展,通过自我评估和同伴评估最大化发挥学生主体性,借此促进学生演讲能力发展,推动本地化口译人才培养进程。     

第二语言习得理论与聋人汉语教学

部分聋人具有将汉语作为第二语言习得的特点.第二语言习得的相关研究对聋人大学生汉语教学有较大启示.从第一语言和第二语言关系、阅读和写作等方面,探讨第二语言习得理论、理念、教学方法及其对聋人大学生汉语教学的启发.总结实践中的一些做法.     

从关联理论看《纯真年代》中的话轮沉默

本文运用语用学中Sperber&Wilson提出的关联理论和Levinson对"话轮沉默"的分类标准,对美国著名女作家伊迪斯·华顿的代表作<纯真年代>中主要人物之间"话轮沉默"的第三类"沉默单独充当话轮"这一现象进行分析,包括话轮沉默的认知语境,信息意图和交际意图,以及语境效果三方面,并且认为关联性不仅能够让文学作品中听话人能够了解对方沉默的交际意图,而且从读者的角度来说,读者通过分析人物的沉默现象还能够挖掘人物的心理,理解作者想向读者传递的真正交际意图.     

新型智能医护仪的设计与实现

本文介绍了一种以新型单片机为核心设计的智能医护仪系统。该系统以STC12C5402单片机为控制核心,利用编码器VD5026和解码器VD5027集成电路来实现一点与多点的通信、双向音频通信,主要用于医院病房值班室对病房病人的看护。文中详细介绍了系统的硬件构成和软件设计,其中软件设计采用主动循环访问,有效避免漏报的不足,以利于医护人员能够给病人提供及时周到的护理。     

浅谈可变数据印刷及其应用实例

可变数据印刷可称可变信息印刷,是随着数字印刷发展起来的一种印刷工艺,是数字印刷的重要组成部分。由于其可以在每份印刷品或出版物上印刷各不相同的内容,包括文字、数字、图形、图像、条形码等,也被称为个性化印刷。