教育——跨越“数字鸿沟”的桥梁

信息技术狂飙突进般的发展,把整个社会从工业时代一下子推进到信息时代,使我们的生活从休闲娱乐到学习工作都发生了巨大的变化。令人们迷惑不解的是,科学技术,特别是信息技术作为最先进的社会生产力,并没有缩小发达与落后、富有与贫穷的差距,由0和1堆砌而成的地平线迅速地坍塌、下陷,形成了一条难以逾越并且还在不断扩大的数字鸿沟。 幸亏,教育,是跨越这道数字鸿沟的桥梁。     

难以填平的山西“数字鸿沟”？

只有亲身走进山西,你才能发现它的文化之久远、资源之丰厚,然而那些都是历史与大自然所赐,现实中的山西给人更多的感受却是贫瘠。本来,在我们这样一个油、气资源相对短缺的国度里,山西极为丰富的煤炭资源无疑是一笔巨大的财富,应当能够带动区域经济的高速发展,以及社会与文化的进步,然而到山西走上一圈才会发现,煤在这里发挥的作用其实并不尽如人意。山西或许并不很封闭,然而却比较落后,寻找产生这种现象的原因,我们发现,信息化既是一种表象,也是症结之一。     

另一种视角的数字鸿沟

数字鸿沟概念是在1996年克林顿竞选总统时，由戈尔正式提出一个概念，不过，数字鸿沟现象当时却并没有在美国出现。这是和当时美国克林顿总统倡导从教育和接入互联网的角度来解决数字鸿沟问题分不开的，例如推进不发达地区的计算机教育，要求全美每个小学都要上网，在穷人区要求互联网免费，政府资助图书馆等公共设施所有人可以免费上网。     

数字鸿沟视域下老年人的数字化生存困境与对策探究

当今社会,数字化和老龄化进程同步进行,越来越多的老年人主动或被动的融入到数字生活中。但数字鸿沟的存在,让老年人的数字化生存面临诸多挑战。老年人难以融入数字化生活的原因是多方面的,帮助老年人融入数字社会的唯一途径就是尽力弥合数字鸿沟,这需要社会多方面的帮助。     

缩小数字鸿沟使信息化惠及全民

数字鸿沟已成为当前我国信息化建设中日趋严重的问题。本文分析了我国数字鸿沟的主要表现,阐述了相应的对策。     

缩小数字鸿沟使信息化惠及全民

数字鸿沟已成为当前我国信息化建设中日趋严重的问题.本文分析了我国数字鸿沟的主要表现,阐述了相应的对策.     

基于链表的对分排序算法及实现

针对以链表为存储结构的数据对象进行排序方法研究，具体描述了对分排序的算法思想，并给出了实现排序算法的有关函数。     

Relative Advantages of Digital Preservation Management in Developing Countries

The purpose of this article is to explore stakeholders’ perspectives on the relative advances of digital preservation management over traditional heritage management approaches in developing countries, particularly in Africa. Specific examples from the context of Ghana are used to help understand the particular factors that influence the relative advantage of the digital preservation management innovation. The article is based on the findings of a PhD study that explored contextual factors influencing the management and preservation of digital cultural heritage resources in Ghana and it is underpinned by Rogers’ Diffusion of Innovation model. An interpretive qualitative approach was employed to solicit the perspectives of 29 key stakeholders from 13 institutions in Ghana through semi-structure interviews. This was followed by an analysis of relevant literature to ascertain how the findings from the context of Ghana relate to other developing countries in Africa.

Stakeholders perceive that the digital preservation management innovation has relative advantages over other traditional ways of managing and preserving heritage information in many ways, including; as an effective means to manage cultural heritage resources; enhancing collaboration and resource sharing; contributes to the building strong cultural institutions; leading to the establishment of a national digital memory for developing countries; as an effective means to preserve value of cultural identity for the long term into the digital future; and enabling research and advancement of cultural knowledge.

Findings from the literature analysis also show that these relative advantages of the digital preservation management (DPM) innovation occur in similar forms in other developing countries in Africa. Further empirical studies in other developing countries are recommended to fully ascertain the main relative advantages of the DPM innovation over traditional approaches of heritage resources management and preservation.     

单线高比特率数字用户线及其ATM适配技术研究

单线高比特率数字用户线(SDSL)技术,是用一对普通电话线实现高速数据双向传输的一种新技术。文中阐述单线高比特率数字用户线的工作原理和关键技术,重点对SDSL的ATM适配技术进行了研究。     

数字摄影测量技术与数字地球空间数据框架的建设

数字地球的构建与数字摄影测量、遥感、全球定位系统、地理信息系统、计算机、宽带网络、多维虚拟现实等新技术有着紧密的联系,数字摄影测量已成为构建数字地球提供空间数据框架的一种不可或缺的技术手段。基于数字地球的发展需求,结合数字摄影测量技术优势和最新发展,着重阐述了数字摄影测量在数字地球空间框架的建设中的作用。随着数字地球发展的深化,数字摄影测量将显示着愈来愈重要的作用。
     

基于分治法的快速确定规则获取算法

值约简是Rough集理论研究的一个重要内容,目前已有的算法很难快速处理大数据集。文中通过在属性空间上对论域对象的分解,提出一种基于分治法的快速确定规则获取算法,并给出实例说明。该算法可直接从离散的决策表获取确定决策规则,在数据服从均匀分布的条件下,算法的时间复杂度低于n²,适合大数据集的确定规则获取。实验结果说明算法的高效性。     

The Influence of Digital Multimedia Communication Forms on Graphic Design

Today, highly sophisticated technology has changed the lives of most individuals worldwide. In the field of graphic design, the emergence and developmentof digital multimedia communication forms have had a crucial impact on the creative process of graphic design and even the process of communication,offering more opportunities and more exciting challenges to this domain. And with the continuous improvement of people’s material culture and spiritualculture, the digital age has enriched people’s production and life. Especially in the application of digital multimedia in graphic design, the changes causedby the emergence of digital multimedia focus mainly on the visual expression. With the continuous application of digital multimedia communication forms,the graphic design closely related to it has been affected to some extent. In order to meet the changing data needs of people, graphic design has also begunto adjust accordingly. Therefore, this paper analyzes the relationship between digital multimedia and graphic design from the perspective of art design,systematically determines the relationship between multimedia and graphic design specific design subjects, and studies the influence of digital multimediatechnology on graphic design.     

“数字地球”与我国信息化发展战略

计算机互联网的飞速发展加速了全球信息化的进程,数字地球化为作球信息化的主要内容成为Ｉｎｔｅｒｎｅｔ之后的又一热点。本文论述了数字地球的概念、产生及其内涵,它是我国信息化发展战略的重要组成部分。     

Digital Inclusion in Rural Areas: A Qualitative Exploration of Challenges Faced by People From Isolated Communities

This study explored the interplay between contextual and individual factors related to Internet adoption in isolated rural communities. By investigating 10 remote villages throughout Chile that received Internet access infrastructure in 2010–2011, we identified 3 areas in which contextual and individual factors are intertwined. First, the geographical isolation shaped people's personality and attitudes towards new experiences, including digital technologies. Second, the communities' aging population also represented a strong challenge because they lack young people, a relevant technology socialization agent. Finally, jobs and economic activities are related to people's (lack of) motivations and needs towards digital technologies. When the Internet has reached the vast majority of the population, isolated communities confront specific challenges that we need to consider in policy‐making decisions.     

数码相机发展及市场格局

数码相机作为一种图像输入设备,在以图像为主要信息载体的互联网时代,具有广阔的应用前景。论文介绍了数码相机关键技术及发展水平,分析了目前数码相机的市场格局及前景,讨论了我国数码相机企业面临的技术差距,探讨了我国数码相机产业化的发展模式,提出了“硬件集成,软件开发”的发展思路。     

“数字化校园”建设面临的网络风险与应对策略

作为"数字化校园"建设依托的基础平台,高校校园网有区别与其它企业网络的特殊性。面临着来自内部和外部的各类威胁。全局安全联动技术通过对入网用户主机信息的收集、安全性检查等措施将安全事件的预警、发现和处理工作集成到一个系统中,以多个安全子系统协同工作的方式实现了全局网络安全的目的,实现主动防御、自动修复、全局联动的功能。