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71.
Hai-Ning Liang 《Interactive Learning Environments》2013,21(1):53-75
Interactive learning environments (ILEs) are increasingly used to support and enhance instruction and learning experiences. ILEs maintain and display information, allowing learners to interact with this information. One important method of interacting with information is navigation. Often, learners are required to navigate through the information space of an ILE, a process which can be quite difficult and cognitively exacting as the information space becomes very large and complex. Proper design can make this process less exacting and, at the same time, facilitate better learning of the information space. However, this is not easy to do, especially for ILEs. Frameworks can assist in the effective analysis and design of interactive environments. However, there is lack of conceptual frameworks for guiding the analysis and design of navigation in ILEs. This paper tries to address this issue by presenting a framework which can be used to characterize navigation within ILEs. To create this framework, this paper brings together research from various disciplines, such as human-computer interaction design, educational multimedia design, cognitive technologies and learning sciences. This framework prescribes a three-stage process for designing and analyzing navigation: 1. content structuring; 2. information navigation modeling; 3. interface presentation structuring. By bringing these three stages together, it is intended to provide a conceptual framework to assist and guide designers in the proper analysis and design of navigation in ILEs. 相似文献
72.
以铁路客专列控中国列车控制系统(Chinese Train Control System,CTCS)、中国列车控制(Chinese Train Control,CTC)工程大范围推广实施为项目背景,介绍了这2大系统的软件接口设计及方法,并对两者系统在接口时的一些关键细节进行深入探讨。对目前工程实施中出现的较严重问题加以分析,提出了合理可行的意见,此方案基本上已在大部分铁路局实施。 相似文献
73.
杨芳 《辽宁科技学院学报》2004,6(1):31-32
介绍了利用新型16位机SPCE061A的SIO实现数码录音及播放功能.详细介绍了实现的硬件设计过程.给出了硬件连接图及软件设计流程图. 相似文献
74.
Beyond Framing 总被引:1,自引:0,他引:1
Visual news media's framing has been well studied; however, production factors and cultural conditions involved in photographer–subject interactions have attracted less scholarly attention although they are no less influential in determining the depiction. Guided by social constructionism theory, in-depth interviews with staff photojournalists at a daily community newspaper in the Midwest and an analysis of their work revealed 22 variables that impact how and why images look the way they do. Photojournalists have complete control of only two of these variables, share partial control of 13, but have no control over the remaining seven. The photographers also shared insights into how to improve their journalism's verisimilitude when dealing with reactive subjects. The results support concepts of social constructionism that the subjects of photographs are most comfortable with photographers who share similar characteristics, but that some characteristics can have greater influence. The results also highlight areas where photographers might focus in pursuit of authenticity in journalistic photographs. 相似文献
75.
Mark Eaton 《Journal of Web Librarianship》2017,11(1):69-78
Visualizations can add value to raw library data. Tools that programmatically make such visualizations interactive can further increase the value of these data by giving librarians visual tools to analyze their datasets. To demonstrate these benefits, Kingsborough Community College Library built SeeCollections (http://b7jl.org/seecollections), a Web application that visualizes the libraries’ collections of books and e-books. This article discusses the how SeeCollections gathers data from Kingsborough's discovery layer API (Application Programming Interface) and transforms these data to create visualizations for the Web. SeeCollections is a lightweight, proof-of-concept data application based on a vendor API. API data are often accessible in academic libraries but are frequently underutilized. SeeCollections was built to demonstrate the immediate value of these API data sources to Kingsborough librarians by providing a visual interface to discovery layer data. Keeping in mind the broader literature on data visualization, this article will explore how SeeCollections was built. 相似文献
76.
串行接口8位LED显示驱动器 总被引:2,自引:0,他引:2
李毅 《重庆职业技术学院学报》2003,12(3):110-113
MAX7219是一种集成化的串行输入/输出共阴极显示驱动器,三线串行接口适用于所有微处理器。本文介绍了 MAX7219的结构、功能、控制字及其操作模式。 相似文献
77.
科技报告呈交系统是科技报告服务管理系统的重要组成部分。福建省科技报告管理中心在省科技计划项目
管理信息系统的项目验收环节增加科技报告撰写和呈交模块,收集和审核科技报告元数据和报告文本等,成功开发了
科技报告呈交系统,实现了与管理服务系统的无缝对接和实时反馈,达到科技报告的程序管理要求。本文在介绍福建
省科技报告呈交系统构建思路、实现功能和实施效果的基础上,分析了存在的问题,提出了今后进一步改进的建议。 相似文献
78.
马登程 《临沂师范学院学报》2008,30(3):125-129
在建立了一个脑电信号源模型的基础上,仔细分析了脑电信号放大器的干扰与噪声,提出了抑制干扰与噪声的一系列措施.然后根据脑电信号的特点着重讨论了前置放大器的设计,介绍了整个脑电信号采集系统的组成,以及软件设计方面的任务分析、数字滤波器和关键的数据结构,最后讲解了诱发事件与诱发脑电信号的同步关系和数据的封装. 相似文献
79.
Java抽象类(abstractclass)和Java接口(interface)是Java语言中对于抽象类定义进行支持的两种机制。它们之间存在着很多相似性,但是又有本质的区别。对于初学者而言,在使用时很难界定到底采用这2种机制的哪一种。本文从格式、继承性和设计理念上分别分析这2种概念的相同点和相异处。 相似文献
80.
魏亚昉 《武汉职业技术学院学报》2008,7(3):77-79
利用低价格高性能智能模块的嵌入式应用实现较为复杂的网络功能,使得网络设计实现模块化;设计了无线通信接口、路由器、中继器等硬件模块,还解决了总线的冲突,报文丢失等问题,为智能小区开发出廉价的的无线网络平台。 相似文献