大学英语口语教学中任务型教学法的应用

基于对当今大学英语口语课程教学现状的调查研究,围绕具体话题,通过对教师活动和学生活动做具体描述,探讨如何将任务型教学法应用于大学英语口语教学中。旨在激发学生的学习兴趣,提高学生的学习策略从而增强学生的口语表达能力。最终使大学非英语专业学生的口语水平能够与国际需求接轨。     

周建人与《妇女杂志》的新女性话语建构

五四新文化运动后,女性权益高涨,以提倡"新贤妻良母"为宗旨的《妇女杂志》遭到舆论猛烈抨击,商务印书馆不得不对编辑作出调整。1921年10月周建人出任"帮同编辑",他与主编章锡琛联手,调整《妇女杂志》办刊宗旨、变革文体和栏目,扩充作者队伍,刊发一系列专号,使《妇女杂志》一跃成为新文化运动后的新女性话语主阵地。周建人以"克士"、"高山"、"乔峰"等笔名,在《妇女杂志》上发表百余篇文章,集中讨论女性独立人格、职业、婚恋自由和新性道德伦理,引领《妇女杂志》妇女问题讨论的潮流,成为名噪一时的妇女问题专家。其直白通俗的语言风格、紧跟社会思潮的敏锐视角及对社会热点女性问题的讨论,为扩大《妇女杂志》读者群体、提升它的社会影响力注入直接助力。     

企业R&D预算分配的“研发树”模型

为解决企业对R&D资金在不同项目之间的分配问题,在研究和借鉴以往决策方法的基础上,构建了适用于大型高科技企业R&D资金分配的"研发树"模型。该方法使R&D预算系统既实现了宏观上的指导功能,又具有微观上的资金控制和配置功能。     

Fractional order sliding mode control of a pneumatic position servo system

Gas flow has fractional order dynamics; therefore, it is reasonable to assume that the pneumatic systems with a proportional valve to regulate gas flow have fractional order dynamics as well. There is a hypothesis that the fractional order control has better control performance for this inherent fractional order system, although the model used for fractional controller design is integer order. To test this hypothesis, a fractional order sliding mode controller is proposed to control the pneumatic position servo system, which is based on the exponential reaching law. In this method, the fractional order derivative is introduced into the sliding mode surface. The stability of the controller is proven using Lyapunov theorem. Since the pressure sensor is not required, the control system configuration is simple and inexpensive. The experimental results presented indicate the proposed method has better control performance than the fractional order proportional integral derivative (FPID) controller and some conventional integral order control methods. Points to be noticed here are that the fractional order sliding mode control is superior to the integral order sliding mode counterpart, and the FPID is superior to the corresponding integral order PID, both with optimal parameters. Among all the methods compared, the proposed method achieves the highest tracking accuracy. Moreover, the proposed controller has less chattering in the manipulated variable, the energy consumption of the controller is therefore substantially reduced.     

基于绿色产品的QFD中技术特性相对权重的优化

质量功能展开(QFD)是将顾客的需求转化为产品的技术特性以满足市场需求的一个系统过程。基于三角模糊数的加权平均法求得技术特性的初始相对权重,考虑到绿色产品应同时考虑成本和环境因素,引入三角模糊的DEA方法对技术特性的初始相对权重进行优化;然后,由技术特性改进目标值对技术特性的相对权重进行进一步优化,并在各α水平截集下采用期望值法对技术特性相对权重进行去模糊处理;最后,通过算例对优化方法进行了验证。     

基于决策者偏好的正负靶心灰靶决策方法

基于已有的研究,在多属性灰靶决策中将决策者对某些属性指标取值的理想偏好和选择偏好所决定的正靶心扩展到负靶心。分析不同的属性值偏好对决策方案指标的影响,并采用广义灰靶决策的方法处理决策者的偏好。基于未一致规范化决策方案样本值矩阵确定正负靶心后,再将决策者偏好的属性值置换求得融入决策者属性值偏好的正负靶心指标值。然后求得各个决策方案的正负靶心距,并以各个方案到正负靶心综合靶心距离的贴近度作为方案的评价依据。算例分析表明,该方法能够有效地处理决策者对某些属性的指标值有不同偏好的情况,且使得决策结果客观。     

Students’ views of assessment in project-led engineering education: findings from a case study in Portugal

According to the demands of the Bologna process, new educational methods and strategies are needed in order to enhance student-centred learning. Project work is one of those approaches. This paper aims to evaluate the impact of project-led education (PLE) on students’ learning processes and outcomes, within the context of a first-year engineering programme. It explores students’ perceptions about assessment procedures and processes. Data collection was based on individual surveys at the end and the beginning of each PLE edition and through focus groups, after a period of six months. Findings are presented according to emerging themes from the data analysis, focusing mainly on students’ perspectives of learning and assessment, the role of formative and summative assessments in PLE and their impact on learning. Implications for improving assessment practices are discussed.     

Update: The Invisible Farmer: securing Australian farm women’s history

This article reviews the Invisible Farmer project – the largest study of Australian women on the land – a third of the way through its three year funding period. It introduces the aims of this collaborative and multidisciplinary project, focusing on the role of records and oral histories in the creation of new narratives, and the task of raising public awareness of the important historical and contemporary contributions made by Australian women farmers. We examine the way digital platforms work to curate records and promote research, and outline the important role that the Australian Women’s Register, a core project of the Australian Women’s Archives Project, will play in achieving outcomes.     

高校图书馆的校园文化引领功能与社会责任

我国正步入经济、政治、文化、社会以及生态文明等五大建设的关键时期,凸现了提高全民科学文化素质的紧迫性,对推进高校校园文化建设提出了新要求。作者认为要充分发挥高校图书馆的文化引领功能,更好地承担社会责任,就要做到:一要准确定位图书馆文化引领功能;二要牢固树立"三个贴近"的服务理念;三要科学搭建师生互动的交流平台;四要提高馆员一岗多能的服务质量;五要不断完善图书馆内部管理制度。     

试述我国古代书厄观的历史演变

我国古代典籍的损毁古人称之为书厄。隋代的牛弘首次对我国历史上典籍的重大损毁事件进行了系统归纳和总结。两宋时期,学者们研究书厄的眼界已经拓展到政治、军事之外。明代是继隋代之后,我国书厄研究发展中的又一个重要时期,产生了大量相关著作,丰富和细化了古代书厄的分类研究,进而推动了我国古代书厄理论的发展。