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.     

早期科技期刊与人才培养 ——以《数理杂志》为例

运用文献考证法,对我国高校最早创办的数理期刊——《数理杂志》的核心作者和内容进行分析.认为:早期的科技期刊以教师为指导、学生为编辑和作者的主体,其发表的内容更趋于传播和探讨,这对数理学科的早期人才储备和培养是有积极意义的.期刊的育人功能在《数理杂志》的办刊历史上得到了集中体现.     

朦胧诗以后:词与物

1985年以后,“朦胧诗人”逐渐引退,“朦胧诗”的单向度写作已经不再为更年轻诗人所满足。随着国人艺术观念的解放,诗歌写作风格也日趋多样。以时间为标志的“第三代”、“70后”、“中间代”、“80后”和以作品价值取向为标志的“知识分子写作”、“民间立场”、“下半身”等命名相继出现;各种写作潮流之间分野日益明显,并引发多次论争;民刊的日益兴盛与互联网的出现,使诗歌写作和发表打破了以前官办刊物的垄断地位。这一切,使近20年来的中国诗坛充满活力。     

地方性师范院校学报办刊之路浅析

地方性师范院校学报公开发行晚,底子薄、文化积淀不厚,难望名校大刊之项背.应从地方性、专题性、形成刊物的个性特色、提高编校质量等方面入手,求生存,求发展.     

TiNx-SiO2减反射膜的制备

This paper describes the preparation and properties of TiNx-SiO2 double-layered antireflective(AR) coatings that were applied with print process. The coating material was analyzed and TiNx was used instead of TiO2 as high refractive material. The influence of solution concentration on AR property was studied. The testing result shows that the coatings using print process are featured with excellent mechanical property and the AR property is comparable to American Southwall AR product. It is expected that the study would promote the industrialization progress in AR coatings.     

高校学报可持续发展的思考

对高校学报的现状及面临的困境进行分析.从高校学报的功能和作用,国家政策对高校学报的支持,网络为高校学报可持续发展提供生存空间3方面分析了高校学报存在的基础.提出了高校学报可持续发展的对策:重视组稿工作,提高学报的学术水平;加强政策导向,发挥窗口功能;突出优秀学科,创建特色栏目;争取成为国际重要检索期刊的刊源;加强高校学报编辑队伍建设.     

文字是幼儿图画书自主阅读中的关键信息吗?——来自幼儿在文字和主角上注视的眼动比较研究

文字意识是指有关文字形式和功能的内隐或外显意识,已有典型亲子阅读情境中的眼动研究发现儿童很少、甚至没有关注文字.研究收集了121名4-6岁儿童在图画书自主阅读情境中对文字和主角注视的眼动,分析结果证实了自主阅读情境中儿童比亲子阅读情境中更早、更多地注视文字.4-6岁儿童在主角上的注视随着年龄的增长在眼动指标上表现为不断优化,在文字上的注视随着年龄的增长不断发展,但还未达到成熟水平.5-6岁是儿童图画书自主阅读过程中文字视觉注视水平发展的重要时期.儿童的文字视觉注视能力的发展存在性别差异.     

基于CNKI的广西高职高专学报网络传播现状对比分析

采用文献计量学方法,以中国学术期刊评价统计分析系统的网络传播统计数据为依据,统计分析了广西区内3家高职高专学报（《旅游论坛》、《南宁职业技术学院学报》、《柳州师专学报》）的网络传播趋势、被访文献所属学科分布、读者地域分布、文献访问量分区段分布、文献海外访问量分区段分布情况。在此基础上,对这三家期刊的网络传播情况进行了对比分析。     

稿源结构与学报的学术质量

高等院校学报的稿源结构主要由单位信息、学历信息、职称信息和课题信息构成,学报稿源结构优良与否与学报学术质量的高低有很大关系。文章随机选择了部分财经类高校学报进行稿源结构对比研究,结果证实,稿源结构好的学报,其学术质量必然高;而稿源结构差的学报,其学术质量相对较低。     

高校学报编排规范调查分析

通过对高校学报发表的论文中中文摘要、关键词、英文翻译、中图分类号和参考文献等5个项目执行《CAJ—CD规范》的调查,结果表明：中文摘要和关键词的规范化情况很差,英文翻译、中图分类号和参考文献的规范化情况相对较好,办刊时间较长的本科学报规范化情况比办刊时间较短的本科学报和专科学报好,高校学报整体规范化情况不理想．分析了产生这种现象的原因,并提出改进措施,以提高学报编排的规范化水平．