富氧条件下CuO/TiZrO4催化还原NO的研究     

韩承辉  陈秀芬  章晓莉 《江苏广播电视大学学报》2005,16(6):68-70

用共沉淀法制备TiZrO4复合氧化物，并作为载体。采用等体积浸渍法担载CuO制成CuO／TiZrO。催化剂，考察其在富氧条件下以CH4作还原剂催化还原NO的性能，研究了CuO负载量、反应温度对NO转化率的影响。结果表明CuO负载量为20％时催化活性最好，反应温度为200℃时，NO转化率可达65％。  相似文献   

Heroes of resiliency and reciprocity: teachers’ supporting role for reconceptualizing superhero play in early childhood settings     

Kathleen I. Harris 《Pastoral Care in Education》2016,34(4):202-217

Superhero play is a specialised form of fantasy play with considerable appeal to young children. During superhero play, children have opportunities to pretend and often to play different types of roles within a safe and caring environment. When guided appropriately in an early childhood classroom, superhero play gives young children opportunities to gain a sense of mastery and empowerment as well as developmentally appropriate benefits by improving language skills, problem-solving and cooperation with peers. By recognising and modelling the characteristics of resiliency and promoting kindness with peers during superhero play, teachers can encourage children to be kind and resilient heroes to classroom friends. As today’s classrooms increasingly include diverse members, it is important for young children to understand and appreciate the peers they play and learn with at school. The result may be a richer learning experience and may break down barriers that can produce unfairness, bullying and aggressive behaviours. This article explores the essence of superhero fantasy play along with its benefits for young children. In addition, the article examines the challenge of superhero play in classrooms for early childhood educators by exploring teachers’ roles in play. A new pedagogy for supporting superhero play is introduced, addressing spiritual and educational concerns by suggesting ways in which teachers can increase resiliency, encourage new friendships and build classroom community among peers during play and classroom activities.  相似文献   

城市外来民工子女教育问题调查与对策研究——义乌市外来民工子女教育个案研究     

黄淑颖  朱闻亚 《怀化学院学报》2007,(5)

义乌市外来人口是本地人口的两倍,解决好民工子女教育问题已经成为政府工作的重点,通过对义乌市民工子女教育现状的分析,提出了解决民工子女教育问题的若干途径。  相似文献   

数据库的发布     

史宪军  黄康恒 《沙洋师范高等专科学校学报》2005,6(5):35-37,75

当前，数据库技术在Internet／Intranet条件下发生了巨大的变化，数据库的网络应用和实现方式也在飞速发展。从传统的发布技术，到现在的B／S（Browser／Server）结构，再到新兴的自动发布技术，web数据库发布技术在逐步走向成熟。  相似文献   

Multimedia and Online Video Case Studies for Preservice Teacher Preparation   总被引：2，自引：0，他引：2  

Terence R. Cannings  Sue Talley 《Education and Information Technologies》2002,7(4):359-367

Case studies have been used successfully as a part of teacher education. There are many possibilities in extending the impact of case studies through the use of technology. Video and the Internet could enable demonstration of more examples, dissemination beyond the walls of the classroom, and discussion between geographically dispersed preservice teachers. Several projects are now investigating the possible ways that technology might enhance or extend text case studies. After exploring four existing products, four essential elements for video case studies are proposed. As video case studies move to the Internet, additional issues arise and these are also explored.  相似文献   

电子媒介时代儿童文学的文化价值     

谭旭东 《昆明师范高等专科学校学报》2007,29(2):16-20

电子媒介时代,儿童文学在建构儿童理想世界,呵护童年生命,塑造并促进社会“新人类”成长方面有着不可忽视的作用。儿童文学还为成人保留一个美好的童年,而这个童年是成人可以回归的精神家园,同时,儿童文学还可以实现成人与儿童的精神对话,并且某种程度上儿童文学也是成人的抵抗的文化政治,即面对被消解了主体精神的世界,面对被工具理性而剥离了灵与肉的社会,面对被横流的物欲而泯灭了求真爱美之心的社会,成人有可能借助儿童文学来实现他对现实世界的抵制和建设的文化理想。  相似文献   

儿童认知策略的发展特点   总被引：1，自引：0，他引：1  

吴雪梅  黄爽  李西营 《成都教育学院学报》2005,19(11):40-42,112

认知策略是个体在解决问题的过程中,运用已有的知识和经验,以期达到目的的智力活动.认知策略的层次性使得其分类方式交叉重叠.儿童认知策略的发展具有以下特征:随着年龄的增长儿童开始产生策略,进而自发使用这些策略,策略使用的有效性也在增加.许多实证研究表明,西格勒的重叠波浪模型符合儿童认知策略发展的特点.  相似文献   

利用网络协议分析器分析TCP/IP协议     

杨洪春 《黄石理工学院学报(人文社科版)》2006,23(2):84-92

本文简单探讨了tcp／ip协议，并利用网络协议分析器对Ieternet网络中数据包实例进行了解析。  相似文献   

统计/判决电路在通信电子实验教学中的应用     

金立  邓永丽 《实验室研究与探索》2006,25(5):603-606

鉴于通信电子技术课程的教学现状,提出了依据统计/判决电路来设计通信电子实验,在8分频的前提下,该电路可以在改进系统通信质量方面起到一定的作用,如改善信噪比,降低误码率,提高系统抗干扰性。通过对该电路的设计、制作和调试,学生能掌握诸如香农公式、数字信号最佳接收等理论知识。能较好实现培养理论和实际动手能力相结合的教学要求。  相似文献   

基于网络的教务管理系统的设计与实现     

苗慧高太光  孙永波 《煤炭高等教育》2005,23(5):93-94

基于网络的教务教学管理是21世纪教务教学管理的发展方向.采用B/S结构的开发模式,可安全、有效地对网络化教务教学管理信息系统进行设计和实现.实践证明,它能够方便地协调好教师、学生、教室三者的关系,使资源达到最大化的利用.  相似文献