从编目角度探讨图书馆数字资源的建设

本文从编目的角度阐述了图书馆数字资源的建设,联机编目的网络模式以及元数据的引入对数字资源建设中的重要意义。     

基于OWL-S API的数字图书馆服务组合应用研究*

以数字图书馆服务组合的结构模型为逻辑起点,分析研究数字图书馆服务发现、匹配及组合的过程,并对基于OWL-S API的数字图书馆服务组合进行应用探索。     

Digital redesign tracker for cascaded analog systems with state saturation and external loads

This paper presents a newly developed digital redesign control scheme with a weighted switching strategy and output-reference tracking, for a cascaded analog system with state saturation and external loads. The proposed method improves the generally poor transition response and output deviation caused by state-saturation constraint and external loads. It replaces an existing or theoretically well-designed analog controller with state saturation, by a digital controller with almost identical performance.     

数字图书馆领域本体构建研究——以数字参考咨询领域为例

以数字参考咨询领域为例,探讨了数字图书馆领域本体构建的必要性,介绍了构建领域本体的知识工程方法中的“七步法”,随后论述了数字参考领域本体构建的设计,给出了数字参考领域本体框架,并采用OWL语言和Prot啨g啨工具实现了对领域本体的形式化描述詈笞芙?了领域本体构建的得失,指出了领域本体构建应当注意的四个方面的问题。     

数字图书馆信息服务的融合与创新——基于2019年JCDL年会论文的综述

[目的/意义]本文通过对2019年国际数字图书馆联合会议(Joint Conference on Digital Library,JCDL)的录用论文进行整体回顾,梳理了本届年会的最新研究成果与学科发展动态,以助国内图情领域学者更好地了解本届年会成果,把握国际数字图书馆领域研究的前沿热点问题。[研究设计/方法]采用文献综述的方法进行研究。[结论/发现]本届年会更加关注数字图书馆如何通过多源数据的融合、数字人文馆藏资源的利用等实现信息服务深度融合;数字图书馆如何通过海量大数据挖掘与利用、用户行为分析提升其服务水平;如何通过对学术文本资源深入挖掘,实现信息计量学在学术评审、学术评价等方面的创新应用。[创新/价值]本文揭示了国际数字图书馆领域的最新发展态势,展望了未来数字图书馆领域的学术前沿方向。     

国外智慧城市视阈下的数字档案研究热点概览

本文对国外智慧城市视阈下的数字档案研究热点文献进行梳理,介绍了数字档案检索优化服务、数字档案交互性和可视化服务、数据开放与用户参与以及智慧城市专项数字档案处理等方面的理论和应用研究成果。这些研究在面向需求、技术应用和专项融合等方面较为深入且操作性较强,具有借鉴意义。     

数字音频自动播控系统在城市电台的应用

结合三明人民广播电台音频工作站介绍如何组建城市电台的数字音频自动播控系统     

Light-induced cracking and abrasion of inkjet prints: Damage and mitigation

This study is part of a larger research project at the Image Permanence Institute dedicated to digital print preservation issues – the Digital Print Preservation Portal (DP3). Previous DP3 studies determined that certain digital print types are prone to cracking and/or abrasion, and that factors such as low relative humidity, pollutants, and light increase the brittleness of the ink-receiving layer of some inkjet papers. The purpose of this investigation was to explore if light also increases the propensity of inkjet prints to abrade, and to examine the potential of framing glazings to mitigate light-induced physical damage (cracking and abrasion) by attenuating some portion of the UV spectrum. Inkjet papers and prints were subjected to xenon lighting (to simulate daylight through window glass) without glazing, or in sealed framing packages with plain framing glass (soda-lime) or UV filtering glass. Before and after light exposure, brittleness, and abrasion resistance were evaluated independently using two tests: ISO 18907 (Imaging materials – Photographic films and papers – Wedge test for brittleness) and a rub test utilizing a Sutherland® Rub Tester. In this study, exposure to light increased the cracking and/or abrasion tendency of some specimens. The use of UV filtering glass reduced this light-induced propensity in all cases. Plain glass protected all samples from at least one of these two types of surface damage, but was less effective than UV glass. Light-induced brittleness and sensitivity to abrasion were mostly, though not exclusively, caused by UV radiation. It was also seen that some prints may become brittle and/or prone to abrasion in the absence of image fade. Budgeting the amount of light these objects can be exposed to, protecting them from UV radiation, and handling prints with caution especially after exhibition, is essential in order to limit physical damage.     

图书馆电子信息服务中的数字版权问题

分析了图书馆信息传播与数字版权保护之间的矛盾问题,概括介绍了现有的版权法对于图书馆中的数字版权问题的立场,并对如何处理好图书馆的数字版权问题提出了几点看法.     

资源与服务质量认证是促进优质数字化资源建设和应用的有效途径

数字化资源和学习服务的质量是影响信息化教学效果的关键。采用评估或者评优的方式对数字化资源和学习服务进行评价是一种关注事物结果、事后的、教育系统内部的自我评价。目前国际上越来越流行的质量认证,从第三方角度,关注事物发展过程,能通过对资源开发和服务过程的规范和改进,促进优质数字化资源的建设和应用,间接达到提高信息化教学质量的效果。开展数字化资源开发与服务质量认证,要在正确认识认证的基础上,建立科学、合理、统一、与时俱进的指标体系,成立可持续发展、针对性强、良性竞争的第三方认证机构。