Study on Preparation and Corrosion Resistance of HPC

钢筋锈蚀引起混凝土结构过早失效的问题，已成为当今国内外土木工程界的研究热点。特别是沿海及近海地区的混凝土结构，由于遭受海水中氯离子的侵蚀作用，钢筋锈蚀问题尤为严重，由此已造成巨大的社会经济损失。现代高性能混凝土技术为解决这一问题开辟了一条新的途径。高性能混凝土是按耐久性设计的混凝土，由于具有低水胶比，有致密的结构和低渗透性，因此能够抵抗外部侵蚀介质的侵入，从而实现高耐久目标。 本文首先系统地分析了海洋环境条件下氯离子引起混凝土结构中钢筋锈蚀的机理。氯离子通过扩散作用、毛细管作用、渗透作用、电化学迁移等方式进入混凝土内部，虽不与钢筋直接发生化学反应，却像催化剂一样促使钢筋钝化膜破坏，加速钢筋锈...Reinforced concrete structural failure caused by steel corrosion has become a research focus in civil engineering at home and abroad. Especially for the concrete structures in coastal and offshore areas subjected to chloride ion erosion from sea water, the corrosion problem is particularly acute, which has caused great economic losses. Modern high-performance concrete technology has opened up a ne...学位：工学硕士院系专业：建筑与土木工程学院土木工程系_结构工程学号：2532007115220

Research on the Key Epitaxial Technologies of High-Efficiency Multi-junction Solar Cells

随着全球能源危机和环境污染的日益加剧，开发利用新型可再生清洁能源已经成为人们生产、生活，维持社会可持续发展的迫切需求。近年来开发利用太阳能，光伏发电技术已经吸引了人们的普遍关注，其中聚光光伏发电技术以其独特的优势，如较高的转换效率和较低的发电成本，已被公认为最具潜力的地面应用发电技术。聚光型多结化合物半导体太阳能电池是聚光发电技术的核心器件，具有目前最高的光电转换效率，良好的温度特性，抗辐射性能好，以及寿命长等优点。本文主要对晶格匹配GaInP/GaInAs/Ge三结太阳能电池结构进行优化设计，对晶格微失配GaInP/GaInAs/Ge三结太阳能电池关键技术工艺进行研究，同时开展晶格失配AlG...Since the global energy crisis and environmental pollution are increasingly serious, it is vital for the sustainable development of human society to explore renewable energy. Recently, photovoltaic technology has attracted increasing attention, which can convert sunlight into electricity. Concentrator photovoltaic with its special advantages, such as higher efficiency and lower cost, has been reco...学位：博士后院系专业：物理与机电工程学院物理学系_凝聚态物理学号：201217004

厦门市加气混凝土发展问题的探讨

介绍厦门市加气混凝土发展背景、现状、与粘土制品的比较以及今后的发展前景,并提出一些建议

Durability quality control for the marine bridge concrete structure of Xiamen Yanwu Bridge

本文通过厦门演武大桥工程实例,对跨海桥梁混凝土结构耐久性的质量控制进行了探讨。研究认为,通过采用环氧树脂涂层钢筋、高性能混凝土、防腐涂料外涂层保护以及加强施工过程中的质量管理等多种有效措施,可以实现对跨海桥梁混凝土结构耐久性的质量控制。This essay discusses the durability quality control for marine bridge concrete structure combined with the engineering example of Xiamen Yanwu Bridge.Disquisitions show that by using the Reinforced epoxy coating and HPC,Anti-corrosion coating,and reinforce the measures such as quality management during the construction,we can realize the durability quality control for marine bridge concrete structure

Durability quality control of concrete structure for marine bridge

对影响跨海桥梁混凝土结构耐久性的主要因素进行了分析,在此基础上,结合厦门演武大桥工程实例,对跨海桥梁混凝土结构耐久性的质量控制进行了探讨。研究认为,跨海桥梁混凝土结构耐久性的质量控制是一个涉及材料、结构设计与施工等多方面的综合难题。通过采用环氧树脂涂层钢筋、高性能混凝土、防腐涂料外涂层保护以及加强施工过程中的质量管理等多种有效措施,可以实现对跨海桥梁混凝土结构耐久性的质量控制。The main factors that affects the durability of concrete structure for marine bridge,is analyzed based on this,combined with the engi- neering example of Xiamen Yanwu Bridge,the durability quality control of concrete structure for marine bridge is discussed.Disquisitions show that the durability quality control of marine bridge is a comprehensive issue that refers to many aspects such as material,structure design and con- struction.By using the reinforced epoxy coating and HPC,anti-corrosion coating,and reinforcing measures such as quality management during the construction,the durability quality control of marine bridge is realized.国家自然科学基金重大国际合作研究项目(2005CCA06700

高血压及高血压合并糖尿病的患者血浆可溶性NRP-1与SOD浓度的变化

目的探讨高血压和高血压合并糖尿病患者血浆可溶性神经纤毛蛋白-1（NRP-1）的浓度与超氧化物歧化酶（SOD）活性的变化。方法本横断面研究共纳入88人，分为对照组（n=26）、高血压组（n=31）和高血压合并糖尿病组（n=31）。人群血浆NRP-1的浓度和SOD活性应用酶联免疫吸附法测定，同时检测血糖、糖化血红蛋白A1C （GHbA1c）和血脂的变化情况。结果单纯高血压组血清总胆固醇（TC）和体质量指数（BMI）显著高于对照组（P<0.05），而高血压合并糖尿病组血清TC、低密度脂蛋白胆固醇（LDL-C）、甘油三酯（TG）、BMI和腰围（WC）均显著高于对照组 （P<0.05）。单纯高血压组和高血压合并糖尿病组血浆NRP-1的浓度和SOD活性均低于对照组［NRP-1（ng/mL）：6.8（6.0~8.3）、5.2（4.0~6.8）vs 8.9（7.7~10.0）；SOD（U/mL）：157.1±18.6、145.1±31.4 vs 168.4±23.1，P<0.05］，而高血压合并糖尿病组与单纯高血压组比较血浆NRP-1的浓度和SOD活性更低，且差异也有统计学意义［NRP-1（ng/mL）：5.2（4.0~6.8）vs 6.8（6.0~8.3）；SOD（U/mL）： 145.1±31.4 vs 157.1±18.6，P<0.05］。对3组研究人群分别进行线性相关性分析发现，NRP-1与SOD之间均呈显著正相关（r= 0.539，0.660，0.895， P<0.05）。结论单纯高血压和高血压合并糖尿病患者血浆NRP-1的浓度均降低，而且高血压合并糖尿病患者血浆NRP-1的浓度降低更明显，NRP-1的浓度下降可能与SOD活性的下降有关

Key Technology for Improving Resistance Against Chloride Ion Penetration of Marine Concrete

为了提高海工混凝土的抗氯离子渗透性,从原材料选择与配合比优化设计方面探讨了提高海工混凝土抗氯离子渗透性的关键技术,并对福建厦门杏林湾九天湖大桥工程案例进行了分析。结果表明,将Ⅱ级粉煤灰、矿粉和混凝土抗氯离子增强剂按一定比例复配,对混凝土配合比进行优化设计,能够有效提高海工混凝土的抗氯离子渗透性。In order to improve resistance against chloride ion penetration of marine concrete,the key technology for improving resistance against chloride ion penetration of marine concrete was discussed from the choice of raw materials and the mixture proportion design,and the engineering example of Xiamen Xinglin Bay Jiutianhu Bridge of Fujian Province was analyzed.The results show that confecting Ⅱ fly ash,slag powder and concrete strengthening agent on resistance against chloride ion penetration in a certain proportion and optimizing the mixture proportion design of concrete,can effectively improve the resistance against chloride ion penetration of marine concrete.国家自然科学基金重大国际合作研究项目(2005CCA06700);福建省建设厅科技计划项目(2005-2-2

Solid-State Thin Film Li-Ion Batteries

通讯联系人 e-mail:[email protected]; [email protected][中文文摘]本文介绍了聚合物薄膜锂电池以及全固态无机薄膜锂电池,主要对全固态无机薄膜锂电池的发展过程以及其阴极材料、阳极材料、无机固态电解质的性能和制备技术进行了综述;同时介绍了全固态薄膜锂电池结构的研究,并提出了全固态薄膜锂电池现阶段研究存在的问题以及一些解决办法。[英文文摘]Thin film lithium batteries based on polymer electrolytes and solid-state inorganic electrolytes are introduced in this article.We mainly review the progress of the all-solid-state thin film lithium batteries based on inorganic electrolytes,including the preparation methods and the properties of the cathode materials,anode materials and solid-state inorganic electrolytes.The studies on constructions of the thin film lithium batteries are also presented.国家重点基础研究发展规划(973)项目(No.2002CB211800);国家自然科学基金项目(No.20373058)资

国内外聚羧酸系高性能减水剂的性能比较

选取了国内外4个品牌5种聚羧酸系高性能减水剂作为研究对象,分别从水泥净浆流动度、与水泥的相容性、保坍性以及产品的性价比等方面进行了对比研究.研究表明:不同品牌的国内外聚羧酸系减水剂具备了低掺量、高减水率、保坍性好、增强效果显著等共同特点,但是与水泥的相容性存在着较大差异.分析认为,国产聚羧酸系高性能减水剂产品与国外同类产品相比,技术性能差距不大,基本上处于同一档次,但是却拥有明显的价格优势.与此同时,我国庞大的建筑市场为国内外聚羧酸系高性能减水剂的推广应用提供了广阔的发展空间,使其具有良好的应用前景

Solid-state thin film li-ion batteries

Thin film lithium batteries based on polymer electrolytes and solid-state inorganic electrolytes are introduced in this article. We mainly review the progress of the all-solid-state thin film lithium batteries based on inorganic electrolytes, including the preparation methods and the properties of the cathode materials, anode materials and solid-state inorganic electrolytes. The studies on constructions of the thin film lithium batteries are also presented