共查询到20条相似文献，搜索用时 62 毫秒
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适应性学习支持系统：现状、问题与趋势 总被引：3，自引：1，他引：2
适应性学习能够解决网络学习中的个性化问题,适应性学习支持系统(ALSS)是智能教学系统与适应性超媒体系统在网络环境下的融合。在介绍ALSS的概念、特征和基本结构的基础上,阐述了其发展历程、典型系统及技术,并分析了当前研究中存在的问题,最后指出了ALSS的发展趋势。 相似文献
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随着信息技术的迅速发展，其在英语教学中的作用也越来越显著。运用多媒体及网络技术的互动英语教学显示出了极大的优势，本文阐述了多媒体及网络技术在英语教学中的应用特点，并着重分析了此技术与互动性相结合的英语教学模式，指出了多媒体英语教学所面临的一些问题。 相似文献
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对网络协议TCP/IP的再认识 总被引：1，自引：0，他引：1
随Internet发展的TCP／IP协议，因为其自身的开放性、适应性强等特性，以及基本分层结构，通信采用了包交换技术．科学地编址和方便的选择路由，并支持众多服务，已经成为网络交换信息的基础协议，为宽带接入、软交换、网络的融合提供了技术上的可能性，有必要对其进行再认识。 相似文献
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网络传输与第五代远程教育展望 总被引：2，自引：0，他引：2
文章介绍了远程教育与其网络传输技术共同发展的历程，并阐述了目前影响远程教育的网络问题，指出网络技术创造了远程教育，第五代远程教育要借助于下一代网络技术，并在包含网格计算，虚拟现实等新技术条件下才能有完全意义上的实现。 相似文献
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随着三网融合及通信技术的发展，实现SIP网络和H32网络之间的互通成为网络融合过程中一个亟待解的问题。对SIP和H323协议进行分析对比，并在此基础上提出互通模型，研究互通过程中的关键问题。 相似文献
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随着计算机多媒体和网络技术的飞速发展，协作学习不断地与计算机应用交叉融合，计算机支持的协作学习（CSCL）成为了教育技术学研究的焦点．在分析CSCL等国际会议相关研究论文的基础上，指出计算机对学习之协作的支持，绝不仅是提供一个共同学习的信息交流空间，而是进一步为学习协作行为的向前发展提供策略性导引和推动． 相似文献
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信息网络发展至今，高校校园网络必须要有质的提升，成为新型教学模式下ICT融合的重要组成部分．而不仅仅是提供简单互联通道，才能让高校信息化适应现代化教学变革。随着SDN（Software Defined Network，软件定义网络）技术的发展越来越受到关注，在高校对SDN的研究也越来越深入，业界普遍认为SDN的理念与校园网络的发展方向是一致的：SDN的集中化控制思想让信息业务能够整合在一个平台上，能够更好的跨越信息孤岛实现校园大数据的融合，同时由于应用策略集中在核心层，无需关注边缘层的业务配置管理下发，大大节省了校园网络与信息化管理部门的运维负担；SDN的虚拟化思想能够更好的与智慧高校校园云平台的虚拟化配合，同时有线与无线设备更加融合，可以忽略其形态差异，使之在设备管理和用户数据转发流程上达到统一；SDN的开放性理念让学校新的业务可以通过开放接口加载到现有网络中，更好地支撑创新。 相似文献
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神伟 《山西广播电视大学学报》2004,9(6):102-103
信息技术的发展使广播与网络的融合成为必然。认真研究网络时代的广播媒体,了解网络广播的发展,针对网络广播的传播特点,指出目前制约其发展的局限因素,并对它的未来发展进行了展望。 相似文献
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李彩霞 《黔东南民族师专学报》2006,24(3):56-57
基于Web的教据仓库是网络技术和教据仓库技术发展和相互融合的必然产物，对基责W；的教据仓库的特征及其体系结构进行了分析，并将其具体应用到高等学校的应用系统中去b构建了一套高校实验综合业务管理、分析及监控系统． 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 相似文献