Self-Similar Solutions for a Class of Reaction-Diffusion Systems     

郭佩芳 《东南大学学报》1997,(2)

ＳｅｌｆＳｉｍｉｌａｒＳｏｌｕｔｉｏｎｓｆｏｒａＣｌａｓｏｆＲｅａｃｔｉｏｎＤｉｆｕｓｉｏｎＳｙｓｔｅｍｓＧｕｏＰｅｉｆａｎｇ（郭佩芳）（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａｔｈｅｍａｔｉｃｓ，ＳｏｕｔｈｅａｓｔＵｎｉｖｅｒｓｉｔｙ，Ｎａｎ...  相似文献   

Common legacy,different paths: the transformation of educational systems in the Czech Republic,Slovakia, Hungary and Poland     

Mikołaj Herbst  Anna Wojciuk 《Compare》2017,47(1):118-132

The goal of this work is to better understand the institutional changes in the educational systems of the Czech Republic, Hungary, Poland and Slovakia. We demonstrate that the educational reforms implemented during the transformation introduced very different institutional arrangements in the four countries, despite the fact that their systems shared many common characteristics at the beginning of the 1990s. Differences between the national approaches to educational reforms are particularly reflected in the modes of education decentralisation, the level of school autonomy, accountability and funding mechanisms. We believe that different institutional arrangements may have contributed to the divergent achievements of the Czech Republic, Slovakia, Hungary and Poland in the PISA programme.  相似文献   

浮出历史地表——中国当代女性批评之批评     

张添天  朱桂成 《文教资料》2006,(4):49-50

诞生伊始,女性批评就存在着些许不足。其引发问题的神来之笔也往往是其矛盾最突出的地方。西方女性批评的引进触发了我国学界对女性批评的“问题”意识,然而若要深化研究,我国的女性批评研究须立足于现状和问题所在,了解这一批评自身存在的局限性和模糊性,然后才能探讨出其未来出路。  相似文献   

Super-proximity routing in structured peer-to-peer overlay networks     

吴增德  饶卫雄  马范援 《浙江大学学报(A卷英文版)》2004,5(1):16-21

Peer-to-Peer systems are emerging as one of the most popular Internet applications. Structured Peer-to-Peer overlay networks use identifier based routing algorithms to allow robustness, load balancing, and distributed lookup needed in this environment. However, identifier based routing that is independent of Internet topology tends to be of low efficiency. Aimed at improving the routing efficiency, the super-proximity routing algorithms presented in this paper combine Internet topology and overlay routing table in choosing the next hop. Experimental results showed that the algorithms greatly improve the efficiency of Peer-to-Peer routing.  相似文献   

辩证地看待当今世界的“两制关系”——读《1844年经济学哲学手稿》     

《信阳师范学院学报(哲学社会科学版)》2016,(2):9-13

在当今世界,社会主义制度与资本主义制度将会长期共存且合作共赢是主流,但本质上依然对立。《1844年经济学哲学手稿》为辩证地看待当今世界的"两制关系"提供了深刻的理论基础,其关于"私有财产"和"异化劳动"的理论论述表明:需要和私有财产有其积极本质,"两制"在本质上是对立的,社会主义代替资本主义将是一个漫长的过程。因此,社会主义国家要科学地看待私有财产的积极性,不宜过早消灭私有制,要坚持以人为本,坚持走社会主义道路。  相似文献   

"五·四"制与"六·三"制之争及其启示     

刘远碧  廖其发 《河北师范大学学报(教育科学版)》2006,8(3):29-33

“五.四”制与“六.三”制争议的焦点,是在既定的义务教育阶段总的修业年限为九年的前提下,关于小学和初中修业年限如何划分的问题。尽管修业年限的划分是学制改革的一个重要方面,但学制改革是一项系统工程,需要认真研究学校教育的性质、目标、任务等一系列根本问题。  相似文献   

一种用于大规模动态异构信息集成的多代理结构     

邓华锋  刘云生 《东南大学学报》2007,23(3):343-346

为了在集成大量异构自治信息资源时实现高效率互操作性,设计了一种基于智能体(agent)的多代理结构.用一组代理智能体以peer-to-peer(P2P)方式为其他非代理智能体提供代理服务,从而提高系统的可扩展性与健壮性.代理服务使用本体技术来实现系统互操作性.与其他多代理结构不同的是,除了领域内本体,还引入了一个领域间本体来表达各个领域内本体中公共概念的联系.因此,代理可以根据领域间本体的信息,将查询请求仅发往相关的代理,减少了网络通信量,更好地发挥多代理体系结构的优势.实验结果表明,系统实现互操作性的效率相对于现有的系统有明显的提高.  相似文献   

论公司司法解散之审慎适用   总被引：1，自引：0，他引：1  

冯晓磊 《江苏广播电视大学学报》2007,18(2):92-96

为保护中小股东利益,打破公司僵局,新《公司法》明确规定了公司司法解散制度。但司法解散是一把双刃剑,特别是在我国公司司法解散制度并不完善的情况下,适用它需要更大的成本。因此对于公司解散之诉,司法者考量的不应仅仅是公司自治,而更需要对现实情况予以效率和公平的权衡,在用尽司法解散的替代制度之后,审慎适用公司司法解散。  相似文献   

Students’ educational use of Facebook groups     

Christian Dalsgaard 《Educational Media International》2016,53(4):261-273

The aim of the article is to explore educational use of student-managed Facebook groups in upper secondary education (in Denmark). Much research on educational potentials of Facebook has studied groups managed by teachers. However, there is a lack of in-depth research on Facebook groups managed by students and without participation from teachers. As this study shows, students’ use of student-managed groups differs from their use of teacher-managed tools such as learning management systems (LMSs). The article presents an empirical study based partly on a content analysis of 3139 posts and 15,018 replies within five Facebook groups, and partly on a questionnaire answered by 1463 students and 148 teachers. The results of the study show that whereas LMSs were seen by students primarily as institutional systems of the teacher, Facebook groups have an educational potential to be used by students for peer-to-peer learning.  相似文献   

Robust H∞ output feedback control for a class of uncertain Lur''e systems with time-delays     

曹丰文  鲁仁全  苏宏业  褚健 《浙江大学学报(A卷英文版)》2004,5(9)

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