共查询到20条相似文献，搜索用时 15 毫秒
1.
俞国红 《广东广播电视大学学报》2009,18(4):95-98
如何高效整合和集成企业内部和企业之间的各种数据资源是目前制造业信息化的一个开放性问题。本文描述了企业信息集成框架的需求与特点,并提出了一种基于组件的企业信息集成框架CIFrame（Computer Integration Frame）。CIFrame采用多层企业应用体系结构,利用可重用组件技术和基于Internet的开放性企业信息集成策略来完成信息集成。通过在企业产品管理数据系统PDM中使用CIFrame策略,分析了CIFrame集成框架的实现。 相似文献
2.
周玲 《南通职业大学学报》2010,24(3):83-86
针对嵌入式系统软件的特点,采用实时操作系统（RTOS）进行太阳能逆变器控制系统的软件开发。在给出软件开发流程的基础上,分析了系统需求,并在TI-BIOS实时操作系统上进行系统架构设计。在一台采用DSP28335控制芯片的100 kW太阳能逆变器样机上的试验结果表明,该软件设计方法具有开发周期短,移植性强,可靠性高等优点。 相似文献
3.
教育部考试中心在"十一五"期间将建设"数字化教育部考试中心",对信息安全保障提出了更高的要求。本文通过对信息安全风险的分析,提出了划分安全域、建立安全域之间的联系、实施整体安全管理的安全体系构建思路,并设计了包括用户、应用、系统、数据、网络直至物理各层在内的安全技术措施和管理手段的、多层次的整体信息安全保障体系。 相似文献
4.
白少华 《辽宁教育行政学院学报》2011,(5)
《道德经》一书中的自然与无为两个概念是道(政治理论)的本质属性和政治行为的根本要求。这两个重要的概念互为表里,共同构成了老子政治理论体系、理论渊源的本质要求,是理解老子政治思想之本源及其体系结构的两把钥匙。 相似文献
5.
Eero Ropo 《Higher Education》1993,25(2):111-132
The purpose of the study is to examine relations between university students' approaches to studying and their evaluative perceptions of the instructional context. The subjects (n=181) were sampled randomly from engineering and architecture students representing different departments and age groups. The data were collected with a questionnaire. Thirty students out of the total sample were also interviewed. The analysis concentrated on comparing correlations between approaches to studying and perceptions of teaching between different subgroups of the sample. The subgroups were (a) experienced-inexperienced, (b) efficient-inefficient, and (c) full-time-part-time students. The study showed that approaches to studying and perceptions of teaching are related to each other in a complex way when seen through the pairwise group comparisons. It seems obvious that students' experiences of teaching and their perceptions of it are closely related to their approaches to studying and their overall orientation in their studies. Educational implications are discussed. 相似文献
6.
Jan L. Plass Mark W. Salisbury 《Educational technology research and development : ETR & D》2002,50(1):35-56
Most of the currently available instructional design models were conceptualized to develop instructional solutions to needs
and requirements that remain relatively stable over time. Faced with the problem of designing a knowledge management (KM)
system that needed to accommodate continuously changing requirements over its fielded lifetime, we developed a new design
model that is based on a living-systems approach. In this article, we briefly review currently available instructional systems
design models and describe this new model and the mechanisms it contains for accommodating change and growth. We illustrate
the application of the phases of the model (analyze initial requirements, design the information architecture, develop the
information design, develop the interaction design, implement the Web-based system, and conduct a developmental evaluation
of the system) in the development of a KM system with living-system features.
All trademarks used are properties of their respective owners. 相似文献
7.
多媒体网络教学系统MNIS的开发模型及实现 总被引：1，自引：0，他引：1
CAI教育软件正朝着多媒体化、网络化、智能化方向发展，阐述了多媒体网络教学系统MNIS的体系结构、软件开发模型和具体实现以及在实践应用中遇到的问题和解决办法。 相似文献
8.
The instructional competence of an Intelligent Tutoring System lies in its instructional model. Such a model has been approached in the ITS field from a theoretical and from a computational point of view. GTE approaches the instructional model from an epistemological point of view by making it reflect the instructional knowledge and expertise that underlies human teaching. The underlying assumption is that such knowledge and expertise has a generic nature, and that it can be modelled. The central component of the GTE architecture is therefore a large generic instructional knowledge base that is capable of dynamically generating a huge variety of instructional plans. It enables to flexibly adapt the teaching performance to the requirements of the individual teaching context. In this paper we describe the formalism that was developed for the representation of the instructional knowledge, the interpretation engine that can generate instructional processes based on the knowledge in the knowledge base, and the actual content of the knowledge base. It illustrates the feasibility of the assumption that was made, and the impact this may have on authoring instructional strategies. 相似文献
9.
James M. Royer 《Educational Psychology Review》1992,4(2):253-259
This paper develops the thesis that the educational semiotic described by Cunningham offers an interesting perspective from which to view educational issues, but it offers little in the way of practical approaches to educational problems. After agreeing with Cunningham's argument that knowledge is constructed rather than received, the paper goes on to state three concerns about an educational semiotic: (a) The theory has the wrong architecture, (b) the theory is too powerful, and (c) the theory has no practical use. The paper closes with the observation that an educational semiotic must become more specific and it must provide empirical demonstrations of practical utility if it is to pose a challenge to currently prevailing theories. 相似文献
10.
Rob Koper Colin Tattersall 《British journal of educational technology : journal of the Council for Educational Technology》2004,35(6):689-700
The requirements placed on learning technologies to support lifelong learning differ considerably from those placed on technologies to support particular fragments of a learning lifetime. The time scales involved in lifelong learning, together with its multi‐institutional and episodic nature are not reflected in today’s mainstream learning technologies and their associated architectures. The article presents an integrated model and architecture to serve as the basis for the realisation of networked learning technologies serving the specific needs and characteristics of lifelong learners. The integrative model is called a ‘Learning Network’ (LN) and its requirements and architecture are explored, together with the ways in which its application can help in reducing barriers to lifelong learning. 相似文献
11.
文章提出了一种基于无线ATM且具有QoS保证的MAC层调度策略和预约模型，通过仿真可以看出，它可以更好的满足各种不同业务的QoS需求。 相似文献
12.
Julie E. Yonker 《Assessment & Evaluation in Higher Education》2011,36(6):673-686
With the advent of online test banks and large introductory classes, instructors have often turned to textbook publisher‐generated multiple‐choice question (MCQ) exams in their courses. Multiple‐choice questions are often divided into categories of factual or applied, thereby implicating levels of cognitive processing. This investigation examined the influence student study approaches have on performance of shallow compared to deep, cognitive process outcomes measured by scores on factual versus application MCQ test bank questions respectively. Fifty‐six introduction to psychology students, aged 18–52 years, completed a modified version of the Revised Two‐Factor Study Process Questionnaire (R‐SPQ‐2F) to access deep or surface study approaches. Mid‐term and final exam MCQ were equally divided between factual and application questions from the textbook publisher test bank. Overall, students performed significantly better on factual MCQ, with older students achieving higher factual and applied scores. Results suggest younger students tend to use a surface approach to study, with reproduction of what was taught to meet minimum requirements. With age statistically controlled, analyses demonstrated that the surface learning approach negatively impacts MCQ performance on questions categorised as factual and applied more than a deep learning approach benefits MCQ performance. 相似文献
13.
点乘是椭圆曲线密码的基本操作,它的主要性能指标是运算高效性。本算法设计灵活,且适应不同应用要求;执行的结果非常高效,适应于大多数椭圆曲线参数。 相似文献
14.
Hei-Chia Wang 《Interactive Learning Environments》2013,21(1):18-38
In recent years, the pervasive use of computers and the Internet has created an unprecedented environment for e-learning. However, the rapid expansion in the number of disparate information sources and variety of data available affects e-learning significantly. Nonetheless, there has been a growing awareness that courseware should automatically adjust to the profiles of individual learners. Over the past few years, much effort has been expended to enable personalization for e-learning by semantic web techniques. Although the semantic web offers a theoretical framework for flexibility and interoperability in e-learning resources, there is no consensus ontology that can be used to describe learning profiles directly for personal e-learning environments. This means that their actual applications are as yet unknown. Positing that ontologies actually provide viable solutions for knowledge management, in this article, we present a three-module architecture for a personalized e-learning environment for bioinformatics. The architecture facilitates a personalized e-material recommender that does item-based collaborative filtering (CF) + adapted vector space model (VSM), explicit and implicit scoring, and a concept of tasks focused on rating literature for the e-learner. Meanwhile, the knowledge discovery process can be tailored to acquiring knowledge for professional requirements. Validation for our architecture is provided by a case study for biological institutions. The experimental results show that our architecture is helpful for professional requirements, improving recommendation quality, and satisfying users. 相似文献
15.
‘I can do it,and how!’ Student experience in access and equity pathways to higher education 总被引：1，自引：0，他引：1
Chad Habel 《高等教育研究与发展》2012,31(6):811-825
Alternative pathways and enabling courses such as foundation programmes are well-established in some tertiary institutions and are likely to be broadened and enhanced across the sector. If such a course is designed along the lines of Biggs’ constructive alignment, it would be hoped that students would be likely to adopt a ‘deep approach’ to learning through their course of study. In addition, it is often assumed (but rarely properly demonstrated) that such courses promote the confidence of students to achieve well in their academic studies. This study explored changes in approaches to learning and academic self-efficacy in the first topic of a Foundation Course, using Biggs’ R-SPQ-2F and a newly developed academic self-efficacy scale. While the findings on approaches to learning were inconclusive, analysis showed a substantial and statistically significant increase in academic self-efficacy. 相似文献
16.
要实现人力需求预测在教育规划中的准确应用,最为关键的环节在于如何将对未来职业的需求转化为对各级各类教育水平的人才的需求。这是一个非常困难但是可以完成的任务。转换的方法可以包括趋势外推法、国际比较法以及雇主访谈法等。 相似文献
17.
赵丽梅 《宁波广播电视大学学报》2005,3(3):71-74
为了较好完成《计算机组成原理》实验中有关重置简单可编程PLD器件GAL20V8芯片及复杂可编程CPLD器件MACH中的内容实验,探寻了在TEC-2000及TEC-2000A教学计算机上在不改变硬布线情况下进行PLD及CPLD电子线路实验的技术路线及具体实现方法。 相似文献
18.
论学习方式 总被引：4，自引：0，他引：4
庞维国 《课程.教材.教法》2010,(5)
学习方式泛指学习者在各种学习情境中所采取的具有不同动机取向、心智加工水平和学习效果的一切学习方法和形式。学习方法存在质和量的双重差异,学习形式本身只存在与学习要求是否匹配的问题。在课程实施过程中,学习方式的转变要立足两个方面:一是注意提升学生学习方法的质量,促进学生学会学习;二是澄清各种学习形式的适用条件,使之与学习和教学任务合理匹配。 相似文献
19.
REN Yong-feng 《教育技术导刊》2008,(3)
介绍一种基于模块化的技术来实现面向服务和消息驱动的架构,并且基于标准建模语言来对资源、事件和应用进行建模。该技术能够实现动态事件发布和订阅、事件轮询、事件过滤和指示。 相似文献