“对日关系新思维”论争述评

文章对2002年底开始一直持续至今的有关对日关系新思维论争中的焦点和各方观点进行综述,梳理"中日关系之辩"的脉络,呼吁对日关系需要客观理性的新思维,提出建立中国在道义层面和现实层面的理想的对日关系。     

地方政府间关系--被遗忘的国家结构形式维度

地方政府间关系是被遗忘的国家结构形式维度。然而,这种现状并不能成为否认地方政府间关系的重要性的理由。从我国的宪政实践和美国宪法的相关规定来看,地方政府间关系应当成为宪法规定的重要内容之一,也应当成为我国宪法学的重要研究对象之一。     

能源与动力专业本科实习教学探讨

实践教学环节在本科培养方案中占有重要的地位,实习是实践教学的主要体现方式之一。实习给学生提供了最为直接有效的理论联系实际的机会,可以培养学生综合运用理论知识分析和解决实际问题的能力。有效地落实实习内容,充实实习环节,对实现学生的专业培养目标,提高学生的综合素质起着至关重要的作用。     

School belonging among young adolescents with SEMH and MLD: the link with their social relations and school inclusivity

Despite the considerable institutional changes schools have made to accommodate the individual needs of pupils with special educational needs and disabilities (SEND), as underpinned by key principles of inclusion, there is still international concern about the mainstream experiences pupils with SEND have in school settings. This study helps us understand the schooling experiences of pupils with behavioural difficulties and learning difficulties by investigating whether they have a sense of belonging and positive social relations and whether these vary according to the level of inclusiveness of the school ethos at the institution they attend. Perceived social relations and feelings of belonging of 1,440 (282 SEND) young adolescents from three secondary mainstream settings that differ in inclusivity, were analysed using a self-reporting questionnaire. Findings demonstrated that pupils with SEND are not a homogeneous group, as pupils with behavioural difficulties were found to have less of a sense of belonging, and social relations than those with learning difficulties. It was also found that the sense of belonging of both groups is associated with their positive perceived relations with teachers and their inclusiveness of school ethos. These findings contribute as they offer ways of enhancing the sense of belonging of pupils with behavioural and learning difficulties in schools.     

VQT: value cardinality and query pattern based R-schema to XML schema translation with implicit referential integrity

In this paper, we propose a new relational schema （R-schema） to XML schema translation algorithm, VQT, which analyzes the value cardinality and user query patterns and extracts the implicit referential integrities by using the cardinality property of foreign key constraints between columns and the equi-join characteristic in user queries. The VQT algorithm can apply the extracted implied referential integrity relation information to the R-schema and create an XML schema as the final result. Therefore, the VQT algorithm prevents the R-schema from being incorrectly converted into the XML schema, and it richly and powerfully represents all the information in the R-schema by creating an XML schema as the translation result on behalf of the XML DTD.     

自主学习何以可能:“学习强国”启示下的平台学习之策

2020年初,一场疫情让在线居家自主学习全面展开,面对各种问题与挑战,教育技术工作者不得不重新思考:如何最大程度发挥平台学习优势,提高平台支持下的深度学习效率,让自主学习真正成为可能。与此同时,深受全国人民称赞的“学习强国”平台,其因具有人本性、融合性、互动性、便捷性等特点而成为学习者进行深度自主学习的典型。文章探究如何构建学习资源众筹、学习形式多样、学习评价多元的,自下而上、协同互动、数据支撑的自主学习平台,希望能为教育工作者指明平台建设方向,能为深度学习提供更好的学习支持服务。     

论数字图书馆的发展动力

本文从数字图书馆用户需求分析出发，论述了数字图书馆发展的根本动力，同时展望了未来数字图书馆发展的趋势。     

基于软开关和并联均流技术的直流电源模块方案设计

本文基于软开关PWM技术和并联均流技术，研究并设计了变电站电气二次系统中直流电源模块单元，提出了电源模块总体设计方案，采用移相控制器UC3875设计了移相控制电路，实现了变换器主功率管的软开关工作状态;研究设计了大功率MOSFET的驱动电路，能够满足100kHz开关频率的要求;运用均流控制芯片UC3907设计了电源模块的均流控制电路，使模块单元具有可并联功能，可以实现多模块并联组成更大功率的电源系统。     

校园网中央机房UPS系统的选型、维护与管理

本文总结了机房UPS电源系统的工作特性、UPS电源输出性能、选型、冗余、工作时间，同时介绍了UPS电源的安装与维护的注意事项。     

低功耗CMOS射频集成电路的设计与研究

文章介绍了目前CMOS射频集成电路中低功耗技术研究所取得的几种成果，评述了其中存在的问题。。最后指出了该领域中未来的研究方向。