新中国作家与读者几种关系的描述     

符有明 《洛阳师范学院学报》2002,21(6):79-81

文学是一种社会性的话语活动,作家与读者是话语活动的双方。作家与读者的关系在不同 的社会环境下有不同的关系形式。在新中国几个特定的历史时期,作家与读者的关系主要表现为:牧师 与信徒的说教关系;朋友与朋友的对话关系;生产者与消费者的供销关系。  相似文献   

Integrating Computer-Mediated Communication into an EAP course     

Xiao Li  Ru-hua Cao 《Frontiers of Education in China》2006,1(4):589-600

The development of the computer along with the widespread use of the Internet has rapidly promoted Computer-Mediated Communication (CMC) as a very important communication media, which can be used widely and effectively in foreign language teaching and learning. This essay tries to explore the advantages of CMC as well as its proposed application, beginning with the introduction of some concepts related to CMC. From the research history, the rationale of using CMC in foreign language learning is summarised. The context of an EAP course is introduced and some suggestions on using CMC in this course are proposed.  相似文献   

计算机实验室软件的自动化管理   总被引：1，自引：0，他引：1  

周智刚  张建臣  郭长友 《实验室研究与探索》2006,25(11):1376-1379

总结了高校微机实验室软件维护的方法及目前面临的普遍问题,提出了实验室软件维护自动化管理的新途径,并采用网络化、自动化的科学手段达到了这一目的。使用纯软件的方法解决了长期困扰在软件管理人员上的一大难题。提高了工作效率,保证了实验教学的正常进行。  相似文献   

基于微机的12导同步心电波形数据库的建立     

刘尚明  潘燕  李桥  孟延  孙文红  张玉华 《实验室研究与探索》2005,24(10):12-14

介绍了12导同步心电波形数据库生成系统的设计过程及180例波形数据库建立的步骤。该数据库的建立对我国心电分析和诊断自动化进程有着重要的意义。  相似文献   

一种新型高功率密度的正弦波永磁电机   总被引：1，自引：0，他引：1  

崔巍  江建中  汪信尧 《上海大学学报(英文版)》2004,8(2):187-192

A novel high power-density PMSM (permanent magnetic synchronous motor) with independent magnetic flux path for each phase is proposed in the paper.The complex mathematic model of PMSM is simplified by decoupling of magnetic flux paths between motor phases.In addition,harmonic compoments are lowered through optimum design of EMF (electric motive force) wave.Thus the ripple torque caused by EMF wave distortion is suppressed.  相似文献   

A Meta-Analysis of Approaches to Engage Social Work Students Online     

Dorothy Farrel  Kateri Ray  Telvis Rich  Zulema Suarez  Brian Christenson  Lisa Jennigs 《Journal of Teaching in Social Work》2018,38(2):183-197

ABSTRACT

With an increase in social work courses being offered in online and hybrid formats, it is imperative that social work programs understand the new teaching tenets and engagement mediums employed to meet the new Council on Social Work Education’s Educational Policy and Accreditation Standards. This meta-analysis explores best-practices pedagogy for student engagement using the delivery of content through both asynchronous and synchronous methods.  相似文献   

Teacher Perceptions of Moodle and Throughput in a Blended Learning Programme for In-Service Secondary School Mathematics Teachers     

Mdutshekelwa C. Ndlovu  Ingrid Mostert 《Africa Education Review》2018,15(2):131-151

The purpose of this article is to analyse teachers’ perceptions of using the modular object-oriented dynamic learning environment (Moodle) platform as a learning management system in a small-scale blended learning (b-learning) Advanced Certificate in Education (ACE) programme for in-service secondary school mathematics teachers in South Africa. It describes how the Moodle platform was used in combination with on-campus and later off-campus contact sessions for a widely dispersed population of 76 in-service mathematics teachers over a four-year period. Qualitative data was gathered by means of a questionnaire with open-ended items, while quantitative data was gathered from the centre's archives. The main findings were that Moodle enabled in-service teachers to experience social, cognitive and teaching presences, through synchronous and asynchronous discussions with peers and facilitators, and a teaching presence by submitting their inquiries and assignments online for facilitators to provide them with answers and feedback. The main obstacles to the integration of Moodle were limited availability of technology, slow speed, and unaffordable cost when available. With increased broadband connectivity Moodle holds the prospect for diversifying b-learning experiences that can support teachers’ professional learning outcomes and throughput for distributed populations of practising mathematics teachers, in particular.  相似文献   

交-交电流型无换向器电机调速系统的仿真     

周冬生  陈贤风  谢中孚 《五邑大学学报(社会科学版)》1988,(2)

本文对交-交电流型无换向器电机调速系统进行了深入的研究,建立了可控硅导通与截止的数学描述方法,推导出系统可能的运行状态,建立了系统数值仿真程序,此程序适用于对系统的稳态和暂态电流的分析,并得到了实验的验证,为分析交-交电流型无换向器电机调速系统提供了一个有力的工具。  相似文献   

基于MCS-98单片机控制的交流调压调速系统     

宋书中 《洛阳工业高等专科学校学报》1999,(1)

本文介绍了一种基于MCS-98单片机控制的异步电动机调压调速系统.该系统具有结构简单、经济实用、通用性强、控制精度高等特点,在一些特殊系统中具有一定的使用价值.  相似文献   

基于MMC的虚拟同步发电机技术在船舶与岸电无缝并网中的应用     

解文祥  周昊  郭燚  王超 《上海海事大学学报》2021,42(3):110-118

鉴于船舶与岸电在并网时存在较大冲击电流,以及模块化多电平换流器(modular multilevel converter,MMC)控制的岸电离网运行时对突发状况响应速度较慢的问题,采用改进的虚拟同步发电机(virtual synchronous generator, VSG)技术结合模型预测控制(model predictive control, MPC)算法,对岸电电源输出电流、环流、子模块电容电压进行分层预测控制,实现船舶与岸电的无缝并网。采用MATLAB/Simulink建立MMC VSG并网仿真模型,模拟船舶与岸电并网及突加负载等工况。对所提出的控制策略和算法的有效性进行验证,结果表明,利用所提出的控制策略能实现VSG离网与并网的无缝切换;与经典控制方法相比,所提出的控制策略的动态响应速度提升了5倍。  相似文献