超支化高分子体系的端基和支化对玻璃化温度的影响

应用高分子反应统计理论,对超支化高分子体系的玻璃化温度受端基和支化点密度的影响进行了研究,得到了体系的玻璃化温度与反应程度的解析表达形式,并进一步以AB3型和加核的A3-ABg(g=2,3,4)型超支化高分子的缩聚反应体系为例探讨了反应程度对玻璃化温度的影响。     

超支化高分子体系的端基和支化对玻璃化温度的影响

应用高分子反应统计理论,对超支化高分子体系的玻璃化温度受端基和支化点密度的影响进行了研究,得到了体系的玻璃化温度与反应程度的解析表达形式,并进一步以AB3型和加核的A3-ABg（g=2,3,4）型超支化高分子的缩聚反应体系为例探讨了反应程度对玻璃化温度的影响。     

Caring for Glass Collections: The Importance of Maintaining Environmental Controls

ABSTRACT

Glass is often seen as a relatively stable material, unaffected by changes in environmental conditions, but recent studies indicate otherwise. Research on the atmospheric deterioration of glass has consistently shown a strong correlation between climate, especially relative humidity (RH), and the rate of deterioration. New studies by the authors have shown that even stable compositions are at risk, when the glasses are exposed to continuous broad fluctuations in RH and temperature. Letting standards slip for the long-term storage of glass can be devastating, eventually leading to irreversible damage that in the final stages can result in the complete destruction of an object. Current research and monitoring of collections at the Corning Museum of Glass indicates that the RH should be within the range of 40–50%. For already crizzled glasses, a tighter control to 40–42% is recommended. Analysis of compositions of already crizzled glasses is ongoing, and hopefully will lead to the identification of at least some groups of glasses that are more at risk. This will help in providing future environmental recommendations for identifiable compositions, selected glass types, or known manufacturers.     

New Interactions

From the first studies of wearables inside MIT’s Media Lab decades ago to the smartwatches and smartglasses sold these days as consumer devices, wearables provide clues to better understand new paths to record and distribute information. Google Glass was one of the first immersive products, allowing users to capture and stream information to the Web, creating screen-based micro-interactions displayed in front of the user’s eye or sent to their smartphone. The first-person perspective is not new, but network-enabled Glass creates a novel state of streamed information and images, potentially making the journalist an avatar of the audience. Possibilities also lay in the development of Glass-specific ambient or calm communications—providing users with seamless information updates. Our study explores how Glass, attached to the head of the journalist-broadcaster, creates alternative behaviours in those captured due to its almost-invisible camera. These and other aspects of Glass will be explored during this paper, recalling experiences made across multiple test beds in the United Kingdom, Porto Alegre, Brazil and the Sahara Desert. The lessons acquired from these experiences allow us to understand not only new ways to inform, but new relationships between journalists, newsrooms and the public.     

思维导图在玻璃工艺学教与学中的运用探析

玻璃工艺学是无机非金属材料专业的一门专业选修课.本论文分析了玻璃工艺学在教与学过程中所面临的主要问题,结合玻璃工艺学课程的特点,将思维导图与玻璃工艺学教与学有机地联系起来,并对其进行了初步的探析.通过研究发现,在玻璃工艺学教与学中运用思维导图,有助于提高教学质量和学生的学习能力.     

玻璃马赛克铺贴生产线供料装置的探讨

本文介绍了玻璃马赛克的国内外有关情况。针对我国目前都使用人工铺贴费时费力的缺点,提出了机械化铺贴的设想。并用设计的供料装置对玻璃马赛克进行定向排列试验,结果表明,效果良好,有实用价值。     

玻璃钢在建筑工程中的应用及发展趋势

在倡导环保、节能的今天，玻璃钢作为新型复合材料在建筑工程中的应用非常广泛，可用作围护材料、采光材料、装饰材料、给排水工程材料等。在玻璃钢产品的开发中应注意品种拓展和环保型产品的开发。     

Reality Behind Absurdity——A Text Analysis of Donald Barthelme's The Glass Mountain

Donald Barthelme is known for his playful,postmodernist style of short fiction.In his The Glass Mountain,he created an absurd world shocking to readers.This paper explores the reality behind the absurd story based on the analysis of its the post-modernism features to better the understanding of the fiction.     

保罗·奥斯特小说中的人物分析——以《玻璃城》和《密室中的旅行者》为例

保罗·奥斯特是一位多才多艺的美国作家,他的写作手法独特,往往采用故事套故事和反传统侦探小说的技巧。在特定的叙事语境中,以偶发事件导致人物生存处境发生变化,人生境遇发生改变来描写人物,塑造了一个个迷失自我,又寻找自我的人物形象。离奇的人物形象,有限的生活空间,诡异的故事情节,这一切在《玻璃城》和《密室中的旅行者》中表现得尤为突出。     

The Collision between Reality and Dream——Symbolic significance of stage spectacle in The Glass Menagerie

In Tennessee Williams’masterpiece The Glass Menagerie,the most remarkable feature is considered to be the successful employment of symbolism.Through the textual analysis,this paper thus gives a systematic analysis of some important symbolic images in stage spectacle,including"lighting","screen","fire-escape","unicorn,""Jonquil"and"father’s photo."These symbols effectively highlight the theme—the collision between reality and dream,which vividly exposes the tragic living situation of the lower class in America during the Great Depression.