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Fundamental Study on Alkali-Activated Slag System with Sodium Carbonate or Calcium Hydroxide

中国化学会第八届全国配位化学会议

作者： Yan Yangtian zhang Sisi zhang wenyan Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education Shaanxi Key Laboratory of Physico-Inorganic Chemistry College of Chemistry ＆ Materials ScienceNorthwest University

Six new complexes based on 5-（triazol-1-yl） nicotinic acid（HL）, namely, [Cu2（L）3（H2 O）（OH）]n（1）, [Co（L）2（H2 O）2]n（2）, [Mn（L）2（H2 O）2]n（3）, {[Co（L）（H2 O）0.5（DMF）0.5（NO3）0.5]·（Cl）0.5·DMF·2 H2 O}n（4）, {[Cu（L）（O）0.5]·CH3 OH·2.5 H2 O}n（5）, and {[Co2（L）4（H2 O）]·2 DMA·2 H2 O}n（6）, were synthesized under hydro（solvo）thermal conditions. The L-ligand in 1–6 reveals various coordination modes and forms diverse secondary building units（SBUs） with metal ions in the final structures. 1 shows a 2 D layered structure with a rare（3,8）-connected topology based on the tetranuclear [Cu4（COO）6（H2 O）2（OH）2 N6] SBUs. 2 and 3 are isostructural and display a 2 D 4-connnected sql net with the point symbol of（44·62）. 4 and 5 have similar spatial 3 D porous frameworks which can be simplified as（3,6）-connnected 2-nodal net via the dinuclear [Co2（COO）2（O）2（NO3）（N）4] SBU and [Cu2（COO）2（O）（N）4] SBU, respectively. 6 is a 3 D porous framework constructed by the dinuclear [Co2（COO）4（H2 O）（N）4] motif with uninodal 4-connnected qtz net. The magnetic properties and gas sorption behaviours of these complexes were investigated, showing that 3 indicates the ferrimagnetic character and 4 demonstrates its effective storage capacity for CO2 and shows high selectivity of CO2 over CH4 at ambient conditions.

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Journal of Materials Science and Chemical Engineering 2024年第6期12卷 55-70页

作者： Seunghyun Na wenyan zhang Yuichi Ichikawa Masaya Komatsu Aoi Takemura Department of Architecture Nishinippon Institute of Technology Fukuoka Japan School of Materials Science and Engineering Henan Polytechnic University Jiaozuo China Fukuya Corporation Fukuoka Japan

Cement as a building material, has high fluidity, compressive strength, and durability, but carbon dioxide emissions during cement production are a major problem. As one of the countermeasures, alkali-activated cement using blast furnace slag powder with alkaline stimulants is considered to be a very promising solution for reducing carbon dioxide emissions, but there is a lack of information about the fundamental properties of alkali-activated materials. This study presents an experimental investigation of the fundamental properties of an alkali-activated slag system with sodium carbonate (NC) and calcium hydroxide (CH). The effects of calcium sulfo-aluminate (CSA) and shrinkage reducing agent (SRA) on the properties of blast furnace slag (BFS) based alkali-activated mixture were also investigated. In the experiments, fundamental characteristics including compressive strength, drying shrinkage, and water penetration tests of mortar were evaluated. Porosity, pH, and ignition loss were measured to verify the effectiveness of the materials. The experimental investigation revealed that the compressive strength was increased with the increasing replacement rates of NC in the BFS mortar, and in the case of water to BFS ratio of 0.45 with sodium carbonation addition contents 10 wt.%, the compressive strength for 28 days of curing reaches more than 50 MPa. Low water to BFS ratio and higher addition ratio of NC had a positive effect on the compressive strength development of mortar. Incorporating NC into BFS would affect the decrease in porosity and increase in ignition loss, leading to higher compressive strength. There was a negligible change to the compressive strength, porosity, pH, and ignition loss of BFS samples made with CH, thus, the addition rates of CH to BFS have no or little significant effect on the fundamental properties of alkali-activated cement. From the results of drying shrinkage and water penetration tests, the addition of NC and CH only to BFS exhibited

关键词： Alkali-Activated Cement Compressive Strength Drying Shrinkage Water Penetration Characteristic

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TiO_2可见光光催化的研究进展

稀有金属材料与工程 2007年第7期36卷 1299-1303页

作者：张一兵张文彦上饶师范学院西北有色金属研究院陕西西安710016

综述近年来有关以TiO2在可见光照射下对污染物进行光催化降解作用的研究进展,讨论了TiO2制备方法、制备过程和结构表征,阐述了TiO2在紫外光和可见光下的光催化机制,指出了TiO2研究进程中存在的主要问题、发展前景及今后的研究方向。

关键词： TiO2 光催化可见光

阅读的灵晕与自律:纸上书、画中书、镜中书和人工智能

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出版发行研究 2024年第4期 10-17页

作者：张文彦青岛大学文学与新闻传播学院

数字技术在打开书籍史研究边界的同时,也似乎带来了书籍史与传播史界限的消弭,书籍史的独立地位受到了挑战。然而,书籍史的独特性在于书籍是人类阅读实践的结果,每一部书籍会因阅读进入不同的“游戏”模式,从而产生不同的灵晕。灵晕的... 详细信息

数字技术在打开书籍史研究边界的同时,也似乎带来了书籍史与传播史界限的消弭,书籍史的独立地位受到了挑战。然而,书籍史的独特性在于书籍是人类阅读实践的结果,每一部书籍会因阅读进入不同的“游戏”模式,从而产生不同的灵晕。灵晕的产生离不开书籍的内容,也离不开书籍的物质形态,灵晕就是创造力,以新版本、绘画、音乐、建筑等多元方式渗透进文明的历史。灵晕的产生离不开阅读的自律,阅读自律是社会阅读秩序的产物,也是个体阅读反思的结果。数字时代,如何在阅读混乱中重建阅读自律?我们仍然需要书籍史,它不仅是面向过去的,也是面向未来的,为过去的书籍和“镜中之书”建立谱系,才能在更复杂的阅读环境中重建阅读自律,推动机器阅读与身体阅读的平衡、合作、共生,保持阅读的多样性。

关键词：阅读灵晕书籍史阅读自律

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试析战后中国电影剧作特色

北京电影学院学报 2005年第2期 25-32页

作者：张文燕中国电影艺术研究中心

1945年8月,经过8年的艰苦抗战,中国人民终于迎来了抗战的伟大胜利.然而战后的时局变化,却令人始料不及.国民党政府不顾全国大众要求和平的强烈愿望和呼声,执意挑起了内战,给中华民族带来了更为深重的灾难.

关键词：剧作特色中国电影战后试析 1945年国民党政府中国人民中华民族抗战

从“诗稿册”到“极乐”世界——于书籍边界探索出版性的可能

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现代出版 2024年第5期 43-53页

作者：张文彦青岛大学文学与新闻传播学院青岛大学全民阅读研究中心

阅读危机、社会变革和技术发展促使学界为出版寻求强有力的理论模型和概念定义,但出版活动总会被制度、实务和出版物的形式套上重重框架,这让模型或概念显得陈旧脆弱。出版性为我们提供了一种新的思考角度。要验证这种“常量”是否存在... 详细信息

阅读危机、社会变革和技术发展促使学界为出版寻求强有力的理论模型和概念定义,但出版活动总会被制度、实务和出版物的形式套上重重框架,这让模型或概念显得陈旧脆弱。出版性为我们提供了一种新的思考角度。要验证这种“常量”是否存在,就要从书籍史中书籍的差别中寻找,从阅读史中读物的命运中寻找,从媒介间性串起的传播巨链中寻找。艾米莉·狄金森(Emily Dickinson)的诗稿册、传世古书《三礼图》、革命运动中的传单和海报、泰勒·艾莉森·斯威夫特(Taylor Alison Swift)的大电影、文字量巨大的电子游戏《极乐迪斯科》等案例让我们看到,出版性在“媒介之海”上架构起书籍的“思之浮廊”,但这种文明的象征正在数字化巨浪侵袭下面临危机。“思之浮廊”只是出版性外化的一种形式,在广阔的媒介之海中,出版性正在出版与其他媒介技艺的竞争游戏中延展。我们唯有逾越出版的边界,才能真正理解出版性。

关键词：出版出版性书籍史阅读思之浮廊

2003与2018年版《中小学图书馆(室)规程》比较研究

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国家图书馆学刊 2019年第1期28卷 37-45页

作者：张文彦广西民族大学管理学院

通过对2003和2018年版《中小学图书馆(室)规程》中各条款的分析、比较,不仅从语法角度,而且着重在语义和语用层次解读了现行规程,总结出修订之后的主要进步:开始关注、保护未成年人中特殊群体的利益;加大了对馆藏建设和服务工作的重视... 详细信息

通过对2003和2018年版《中小学图书馆(室)规程》中各条款的分析、比较,不仅从语法角度,而且着重在语义和语用层次解读了现行规程,总结出修订之后的主要进步:开始关注、保护未成年人中特殊群体的利益;加大了对馆藏建设和服务工作的重视和指导,进一步提升藏书标准与管理人员待遇要求;图书馆性质和任务等重获鲜明的时代感;语言趋于简明和务实化。2018年版《规程》的缺陷主要有三项,但都可通过将来的修订加以弥补,对国家专业法规较细致和严苛的要求也能通过改进得以实现。我国学校图书馆事业方兴未艾,未来的规程制定必将进一步完善并发挥出更大效能。

关键词：中小学图书馆学校图书馆图书馆规程比较研究

Deubiquitinase ubiquitin-specific protease 3 (USP3) inhibits HIV-1 replication via promoting APOBEC3G (A3G) expression in both enzyme activity-dependent and -independent manners

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Chinese Medical Journal 2022年第22期135卷 2706-2717页

作者： Simin Zhao Baisong Zheng Liuli Wang Wenzhe Cui Chunlai Jiang Zhuo Li Wenying Gao wenyan zhang Center for Pathogen Biology and Infectious Diseases Institute of Virology and AIDS ResearchKey Laboratory of Organ Regeneration and Transplantation of The Ministry of EducationThe First Hospital of Jilin UniversityChangchunJilin 130021China College of Life Science of Jilin University ChangchunJilin 130012China Department of Regenerative Medicine School of Pharmaceutical SciencesJilin UniversityChangchunJilin 130012China Jilin Provincial Key Laboratory on Molecular and Chemical Genetics The Second Hospital of Jilin UniversityChangchunJilin 130041China Department of Endocrinology and Metabolism The First Hospital of Jilin UniversityChangchunJilin 130021China

Background: Ubiquitination plays an essential role in many biological processes, including viral infection, and can be reversed by deubiquitinating enzymes (DUBs). Although some studies discovered that DUBs inhibit or enhance viral infection by various mechanisms, there is lack of information on the role of DUBs in virus regulation, which needs to be further ***: Immunoblotting, real-time polymerase chain reaction,in vivo/in vitro deubiquitination, protein immunoprecipitation, immunofluorescence, and co-localization biological techniques were employed to examine the effect of ubiquitin-specific protease 3 (USP3) on APOBEC3G (A3G) stability and human immunodeficiency virus (HIV) replication. To analyse the relationship between USP3 and HIV disease progression, we recruited 20 HIV-infected patients to detect the levels of USP3 and A3G in peripheral blood and analysed their correlation with CD4^(+) T-cell counts. Correlation was estimated by Pearson correlation coefficients (for parametric data).Results: The results demonstrated that USP3 specifically inhibits HIV-1 replication in an A3G-dependent manner. Further investigation found that USP3 stabilized 90% to 95% of A3G expression by deubiquitinating Vif-mediated polyubiquitination and blocking its degradation in an enzyme-dependent manner. It also enhances the A3G messenger RNA (mRNA) level by binding to A3G mRNA and stabilizing it in an enzyme-independent manner. Moreover, USP3 expression was positively correlated with A3G expression (r= 0.5110) and CD4^(+) T-cell counts (r= 0.5083) in HIV-1-infected ***: USP3 restricts HIV-1 viral infections by increasing the expression of the antiviral factor A3G. Therefore, USP3 may be an important target for drug development and serve as a novel therapeutic strategy against viral infections.

关键词： APOBEC3G Ubiquitin-specific protease 3 Deubiquitination Human immunodeficiency virus-1 Vif Human immunodeficiency virus Deubiquitinase

电化学和石英晶体微天平研究2-巯基苯并咪唑的电化学氧化反应

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分析化学 2000年第9期28卷 1129-1132页

作者：许博朱果逸张文艳中国科学院长春应用化学研究所电分析化学开放研究实验室!长春130022

应用循环伏安研究了水相中２－巯基苯并咪唑的电化学氧化过程，考察了ｐＨ值、浓度等的影响，并应用电化学石英晶体微天平（ＥＱＣＭ）监测了此氧化成膜的过程。结果表明此反应为一电子过程。结合表面光电子能谱（ＸＰＳ）对此氧化膜进... 详细信息

应用循环伏安研究了水相中２－巯基苯并咪唑的电化学氧化过程，考察了ｐＨ值、浓度等的影响，并应用电化学石英晶体微天平（ＥＱＣＭ）监测了此氧化成膜的过程。结果表明此反应为一电子过程。结合表面光电子能谱（ＸＰＳ）对此氧化膜进行了初步表征。

关键词： 2-巯基苯并咪唑电化学石英晶体微天平光电子能谱