提高多媒体课件效果的有效策略研究

目前,多媒体课件已经成为了学校日常教育过程中一个重要的工具,但是目前多媒体课件不是以提高教学的有效性而制作,使得多媒体课件的制作偏离了原有的目标。该文通过对不同学习理论对多媒体课件制作的影响进行分析,寻找多媒体课件效果提高的策略。     

浅谈多媒体在电工电子教学中的应用

多年来一直从事机电教学工作,除了运用传统的课堂教学向学生讲授知识、学生记笔记、做练习、考试等方法外,还有意识地运用多媒体电脑软件制作电教幻灯投影、图片等,以激发学生的学习兴趣.多媒体课件在课堂教学中具有传统教学手段无法比拟的优势.但并非使用了现代化手段就能保证教学的成功和达到预期的教学目标.我认为起主导作用的还是授课教师,多媒体课件只是教师教学过程中的重要工具和手段.要想很好地完成教学任务,必须根据专业课教学的特点选择合适的多媒体手段,在教学中精心设计,认真实践,反复推敲.     

浅谈多媒体课件中动画设计

多媒体课件中动画的设计应服从于教学目标和教学对象的需要,不可滥用,同时应增加动画的交互性,提高学生自主学习的兴趣,达到优化课堂教学的目的。     

《计算机体系结构》教学设计与课件制作

多媒体课件可以改变传统的教学模式,发挥学生主导学习地位作用,提高教学效率和质量;系统科学的教学设计是课程多媒体课件制作成功的前提。运用教学理论对课程系统进行教学设计,在多媒体课件制作过程中结合制作原则和教学设计理论成果,制作《计算机体系结构》课程多媒体课件,应用到课程教学、学生自主学习和知识评测之中,制作完成的课件由学生进行评价后改进。     

从角色扮演类游戏中寻找多媒体课件开发的灵感

角色扮演类游戏作为现代网络游戏的一种,能够使玩家在玩游戏的过程中身临其境,获得良好的游戏理解能力和更好的游戏体验。而将角色扮演类游戏的开发理念等融入到多媒体课件的开发过程中,能够使多媒体课件的作用在教学过程中得到最大化的发挥。因此,我们试图从角色扮演类游戏对多媒体课件开发的启示出发,寻找角色扮演类游戏对多媒体课件开发带来的灵感,以最终促进多媒体课件实用效果达到最大化。     

巧用多媒体课件,创语文高效课堂

新课程改革强调学生的参与性和主动性,利用多媒体技术进行语文课堂教学是现代化教学变革的趋势.但目前,在多媒体课件的教学设计过程中,许多课件的设计往往注重内容的展示和教师的控制方式,却缺乏引起学生参与和反应的设计,学生在多媒体面前,欠缺主动性.适时、合理穿插多媒体课件,能够促使学生主动参与学习,即在教学过程中学生对所呈现的信息以各种方式做出积极的反应,通过学生的参与,使他们能更好地理解并掌握所呈现的信息.     

多媒体学习认知理论与演示型多媒体课件的设计

本文主要介绍与多媒体课件设计相关的多媒体学习认知理论、认知负荷理论和多媒体对学习效应的整合模型,以及介绍在这些理论的基础上建立的演示型多媒体课件界面的设计原则。     

微机中断接口技术网络多媒体课件的研制

引言 开发网络多媒体课件对微机中断接口技术课程实行网络多媒体教学具有重要意义:一是多媒体技术可使教学内容变得直观形象,这可解决微机中断接口技术教学中各种接口电路芯片内部结构和工作过程复杂不直观、不易讲解的问题;二是网络多媒体课件可以实现教学资源共享和远程教学,缓解师资短缺问题;三是网络多媒体课件可实现学生个性化的、无拘束地交互式学习、协作学习,可摆脱时间和空间的限制.     

信息技术在高中化学课堂教学中的作用

多媒体作为现代化教学的一种手段在优化教学效果中起着重要作用.在教学过程中,恰当地运用多媒体课件,突破时空的限制,使书本上静态的变成生动、形象、直观的动态形式展现在学生面前,充分发挥学生的观察力、想象力,促进学生的求知欲,增强教学的趣味性,提高学生的辫析能力,引导学生的学习兴趣,激发学生的学习积极性,使学生更为轻松、愉快、高效地获取知识,发展思维,形成能力,从而达到最优化的教学效果.     

浅谈多媒体课件中动画设计

多媒体课件中动画的设计应服从于教学目标和教学对象的需要，不可滥用，同时应增加动画的交互性，提高学生自主学习的兴趣，达到优化课堂教学的目的。     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。