掺杂剂与基质材料能量匹配的红色有机发光二极管     

朱文清  蒋雪茵  张志林  许少鸿 《上海大学学报(英文版)》2003,7(2):191-195

1　Introduction　Organiclight emittingdiodes(OLEDs)haveattract edconsiderableattentionduetoitsgreatpotentialinefficiency ,low voltage ,large area ,lightweight ,andfull colorflat paneldisplays[1,2 ] .Forfull colordis plays ,itisnecessarytohaveefficientred ,green ,andblueemitterswithappropriatechromaticity .Bycom parisonwiththehighperformanceofblueandgreenOLEDs ,theperformanceandpurechromaticityofredOLEDsarestillrelativelypoor .UsuallyredOLEDsareimprovedbydopingreddyesintohostmaterialswit…  相似文献   

浅谈成人高校大学生的素质教育     

朱大俊 《湖北成人教育学院学报》2002,8(3):17-18

面对新世纪国际竞争的挑战，我国要逐步缩小与发达国家的差距，就必须大力发展教育和科技，把经济发展切实转到依靠科技进步和提高劳动者素质的轨道上来。当前，作为我国终身教育体系重要组成部分的成人高等教育，更应把努力培养适应社会主义经济建设所需要的高素质人才作为教育工作的根本任务。  相似文献   

我校撑竿跳高运动员的训练     

朱先敢 《台州学院学报》1997,(6)

总结我校两届学生撑竿跳高训练的经验,对于初次接触撑竿跳高运动且经短时间训练就参加比赛的运动员,如何进行训练更能适应省大运会比赛的要求,并取得较好成绩进行了有益的尝试。  相似文献   

Consensus among stakeholders about success factors and indicators for quality of online and blended learning in adult education: a Delphi study     

Yves Blieck  Ilse Ooghe  Chang Zhu  Koen Depryck  Katrien Struyven  Bram Pynoo 《Studies in Continuing Education》2019,41(1):36-60

Quality models for online and blended learning (OBL) have mainly been developed in higher education. The literature indicates that these models are often conceptualised from the providers’ perspective. What is important for the quality of OBL from the students’ perspective has recently received increased attention in the literature. Consensus among stakeholders about students’ quality needs is useful to support dialogue between professionals to strategically adopt OBL and to ensure that the needs of students are met. This study aims to validate a quality instrument for OBL, taking a set of 74 quality indicators and analysing them in terms of seven success factors (credibility, accessibility, transparency, flexibility, interactivity, personalisation, productivity). The Delphi method was selected as most suited. Participants from adult education were asked to indicate on a 7-point Likert scale to what extent the indicators add to OBL quality to meet students’ needs. After four Delphi rounds, the participants agreed on definitions of success factors and 30 indicators. The results are useful for institutions, ministries of education and external quality assessment agencies to assess the quality of OBL and can support institutions to implement improvement actions to ensure that the needs of students are met.  相似文献   

浅议文化背景知识在英语听力教学中的作用     

朱琳 《云南电大学报》2001,3(2):45-46

不同的国家、不同的民族有不同和风俗习惯及化背景。了解及掌握英国、美国风俗习惯及化背景知识是提高英语听力技能的重要途径之一。  相似文献   

课程之间的相互联系及关联教学法——专业基础课的教学方法探讨   总被引：4，自引：0，他引：4  

竺长安 《教育与现代化》2001,(4):29-32

知识经济时代的来临，老的一套方法已经不适应国家的需要。把心理学的“学习迁移”现象用于教育，做到系统化、关联化教学，是一种教学改革的尝试。本分析了课程之间的内在联系，总结成四种相互关系，进而利用“学习迁移法”提出了关联教学的概念，希望通过这种教学法让学生多年的学习形成一个整体，更有效地培养国家急需的人才。  相似文献   

幼儿入园初期亲子分离焦虑分析     

朱立新 《基础教育研究》2001,(2):43-44

幼儿入园初期可以观察到的一个明显现象就是亲子分离焦虑的产生。本文拟在前人情绪心理研究的基础上对这个问题作如下分析。  相似文献   

从输入与输出角度看大学英语口语教学     

朱玉 《福建教育学院学报》2005,6(1):78-82

针对目前大学英语口语教学中存在的一些问题,从输入和输出角度进行分析,提出口语教学应在强调输入的基础上,充分利用课堂教学创造良好的输出环境来帮助学生提高英语口语水平.其中对输入和输出的方式进行了比较详细的探讨.  相似文献   

智能转矩转速测量仪     

朱维怡 《昆明师范高等专科学校学报》1988,(1)

本文叙述了用微型计算机和相应的接口构成智能转矩转速测量仪。它与同类仪器相比,具有精度高、构造简单、体积小,能自动测量、显示、打印、绘图等特点。  相似文献   

Transient Responses of Flexible Non—uniform Spinning Shaft with Nonlinear and Asymmetric Supports     

ZHUHuai－liang 《上海大学学报(英文版)》2001,5(1):35-39

In this paper ,a hybrid approach was developed to investigate the transient responses of a multi-span non-uniform flexble spinning shaft with nonlinear and asymmetric supports.The non-uniform spinning shaft with variable parmeters was modeled as a Bernoulli-Euler beam column with sectional constant cross-section properties by the finite element method.The supporting stiffness behavior of the nonlinear supports was described as a piecewise-linear and asymmetric model.The equations of motion in the matrix form of a multi-span non-uniform spinning shaft with nonlinear and asymmetric supports were formulated using Hamilton‘s principle and the assumed mode method.As an example,a spinning rocket with many variable stiffness supports was numerically simulated by the direct integration method.The transient response and dynamic behavior of this rotate-dynamic system are analyzed.  相似文献