Study on the Conversion of Carbohydrates into 5-Hydroxymethylfurfural and 2,5-Dimethylfuran

生物质被认为是唯一可以替代化石资源获取燃料、化学品和材料的可再生资源，而将生物质资源中含量最丰富的碳水化合物转化为5-羟甲基糠醛（HMF）和2，5-二甲基呋喃（DMF）是生物质开发利用最重要的转化途径之一，目前已经引起了国内外科学界和工业界越来越广泛的关注。本论文以绿色化学理念为宗旨，以碳水化合物为原料，针对目前HMF和DMF研究过程中存在的问题开展了一系列研究，包括绿色、高效、价格低廉和制备简单的催化剂的开发；碳水化合物脱水反应机理和动力学的探索；HMF加氢反应体系的建立以及DMF的有效分离纯化等，并取得了一定的研究成果。 首先，在CrCl3•6H2O的基础上添加一定量的B(O...In recent years, biomass is considered to be the only renewable resources in nature to replace the fossil resources for the production of fuels, chemicals and materials. The conversion of carbohydrates that are the most abundant components of biomass into 5-hydroxymethylfurfural (HMF) and 2,5-dimethylfuran (DMF) is one of the most important pathways for the utilization of biomass, which has attrac...学位：理学博士院系专业：能源研究院_能源化学学号：3242010015379

Research on Exchange Market Pressure of RMB

随着经济全球化的深入，世界各国之间的联系越来越密切，汇率作为两个国家货币名义上的比价，在世界经济交往中发挥着纽带的作用。同时，随着布雷顿森林体系的解体，国际货币体系进入了浮动汇率时代，汇率波动成为外汇市场上常态特征。汇率成为衡量一国经济活动最重要的综合性价格指标，调节一国贸易收支的重要杠杆。研究人民币汇率所面临的市场压力不仅有助于我们识别和预测潜在的货币危机，而且更为重要的是，它能够测度中央银行外汇市场的干预程度，估计一国货币在外汇市场上所面临的升值或贬值压力，从而为一国中央银行的外汇市场操作提供比较好的预警机制和预测指标。因此，对人民币汇率市场压力问题进行研究，不论对经济学家还是对政府、跨国...With the development of economic globalization， the economic connections between countries is closer and closer， exchange rate， as two countries’ currencies nominally price parity， play the association part in world economy. At the same time， international currency regime has entered the floating rate era since the Breton Woods regime disassembly， exchange rate fluctuation becomes the constant sta...学位：经济学硕士院系专业：经济学院金融系_金融学(含保险学)学号：1562006115108

A Summary of Teaching Reform about Architecturo/Design I / II in Huaqiao University Based on Space and Social Practice

本文以回归建筑本源-以“人”为本，关注“生活”出发，从课程结构体系、选题、教学方式和表达与评价四方面对华侨大学建筑学院《建筑设计一、二》课程教改进行总结。提出从生活与建筑之间的关联中发现问题，掌握行为与空间的互动关系；建立环境意识；加强对结构、材料和构造的认知：培养社会责任感，形成正确的设计观的总体目标。In order to return to the origin of the architecture-people-oriented and focuse on the living life, summarized the teaching reform of architectural design I ／ II in the Architectural Institute of Huaqiao University from the course structure, topic selection, teaching methods, expression and evaluation. The goal is to find the association between life and architecture, master the interaction between behavior and space; establish environmental consciousness; strengthen the understanding of structure, material and construction; cultivate a sense of social responsibility and form a correct design view.华侨大学校级本科教学质量工程项目资助

Clinicopathological analysis of 12 patients with Epstein-Barr virus-positive primary intestinal T/natural killer-cell lymphoma (EBV^+ ITNKL)

名古屋大学Nagoya University博士(医学)doctoral thesi

Ionic Liquids-Mediated Formation of 5-Hydroxymethylfurfural

5-羟甲基糠醛(5-HMf)被认为是一种非常重要的平台化合物。利用离子液体介导制备5-HMf的研究已经引起了人们越来越广泛的重视,并取得了较为理想的研究成果。本文对离子液体介导制备5-HMf的研究成果进行了系统的归纳和总结,着重介绍了离子液体作为反应溶剂和催化剂在5-HMf制备过程中的应用以及离子液体介导制备5-HMf的形成机理和影响因素,并对离子液体介导制备5-HMf的研究前景进行了展望,以期为5-HMf的进一步研究提供思路和参考。5-Hydroxymethylfurfural(5-HMF) is considered as a very important biomass-based platform compound that can be used to synthesize a broad range of liquid fuels and chemicals,which are mainly derived from fossil resources so far.The study of the production of 5-HMF in the presence of ionic liquids has increasingly attracted more attention.In this review,the recent achievements of ionic liquids-mediated formation of 5-HMF are systematically summarized,including applications of ionic liquids as reaction solvents and catalysts in the production of 5-HMF,influence factors and formation mechanisms in the ionic liquids-mediated formation of 5-HMF.The future research trends of ionic liquids-mediated formation of 5-HMF are suggested.国家重点基础研究发展计划(973)项目(No.2010CB732201);国家自然科学基金项目(No.21106121);中央高校基本业务费专项资金项目(No.2010121077)资

Advances in production of 5-hydroxymethylfurfural from glucose

5-羟甲基糠醛(5-HMf)是一种重要的平台化合物,具有非常广泛的应用价值和市场前景。葡萄糖的选择性脱水是制备5-HMf的主要方法之一,也是碳水化合物降解研究中的重点和难点,现在已经受到了人们越来越广泛的重视。本文综述了近年来葡萄糖制备5-HMf的研究成果,着重介绍了5-HMf的形成机理以及制备5-HMf的催化体系与溶剂体系,并对葡萄糖制备5-HMf的研究前景进行了展望,以期为5-HMf的进一步研究提供思路和参考。5-Hydroxymethylfurfural(5-HMF)is a kind of important platform chemical compound and possesses wide application value and market prospect.Selective dehydration of glucose is one of main synthesis methods for 5-hydroxymethylfurfural and has attracted increasingly more attention.In this paper,the recent research achievements in the dehydration of glucose for preparation of 5-HMF are summarized,including formation mechanisms,catalyst systems and solvent systems,and the future research trends of 5-HMF from dehydration of glucose are prospected.国家973计划(2010CB732201);国家自然科学基金(50776035);中央高校基本业务费专项资金(2010121077)项

Content and Distribution Characteristics of Anti-oxidant Components from Salvia miliorrhiza Bge

借助超声波萃取法、以反相高效液相色谱 (RP -HPLC -DAD)为分析检测手段 ,研究了丹参 6种抗氧化成分的提取方法和分离定量条件 ,并对这些成分在全株丹参不同部位中的含量分布特征进行了探讨。结果表明 :常温下的超声波萃取可避免热解作用给丹参酮类化合物带来的损失 ,而辅助的加热处理可使原儿茶醛获得较高的提取率 ,两种操作方法简单可行。 6种化学成分在丹参不同部位及不同等级中的分布有较大差异。丹参酮类化合物主要分布在根部皮层 ,而叶子中丹参素的含量却较为丰富 ,可为丹参品质鉴定和质量标准研究及该资源的综合利用奠定理论基础。Extract method and determination parameters for 6 anti-oxidants from Salvia miliorrhiza Beg (Danshen) were reported by means of microwave oven and Reversed-Phase-High-Performance-Liquid-Chromatography (RP-HPLC). These components in different tissue of Danshen were also discussed. The results showed that the loss of tanshinones caused by heating depression could be avoided by means of microwave method at the room temperature, and a higher extraction yield was also obtained by heating. The two extraction methods were simple and easy to operate. The content of tanshinones and salvia acids varied with different tissue and grades. Tanshinones were mainly in cortex of Danshen root, and Danshensu in its leaves. It has great significance for Danshen identification and quality control.香港特别行政区创新科技署创新基金;; 厦门大学现代分析科学教育部重点实验室开放基金共同资

Conversion of Biomass to Novel Platform Chemical γ-Valerolactone by Selective Reduction of Levulinic Acid

生物质是唯一能替代化石资源转化得到液体燃料及化学品的可再生资源,近年来,催化转化生物质制备各种平台化合物的研究受到了人们越来越广泛的关注。和乙酰丙酸(lA)一样,γ-戊内酯(gVl)也被认为是一种具有广泛应用潜能的新型生物质基平台化合物。目前,人们已经开发出多种催化剂和反应体系用于催化生物质基lA选择性还原制备gVl。根据氢源的不同可将lA制备gVl的途径概括为4种:分别以分子H2、甲酸(fA)、合成气和醇类作为氢源的途径。本文着重从氢源的差异来归纳和总结生物质基lA选择性还原制备gVl的途径及其研究进展,以期为寻找一种高效、经济、环保的gVl合成途径提供一些思路和参考。Biomass is the only renewable resources on the earth that can be converted to liquid fuels and chemicals to replace fossil resources.Recently,the catalytic conversion of biomass to platform molecules has attracted more and more attentions from the researchers worldwide.γ-Valerolactone( GVL) is regarded as a platform molecule that has extensive application potential,similar to levulinic acid( LA).Up to now,various of catalysts and reaction systems were developed and applied to the selective reduction of biomass-derived LA to GVL,and the hydrogenation of LA can be driven by various hydrogen sources,including molecule H2,formic acid( FA),syngas and alcohols.In this review,the catalytic hydrogenation routes and recent research progress for the reduction of LA are systematically summarized in view of the diversity of hydrogen sources.The future research trends of the selective reduction of LA to GVL are suggested.国家重点基础研究发展计划(973)项目(No.2010CB732201); 国家自然科学基金项目(No.201106121); 中央高校基本业务费专项资金项目(No.2010121077); 厦门大学研究生基础创新基金(No.201212G006)资

Advances in Selective Hydrogenation of 5-Hydroxymethylfurfural into 2,5-Dimethylfuran

鉴于2,5-二甲基呋喃(dMf)优良的理化性质、重要的应用价值和广阔的市场前景,着重从氢气、甲酸、醇类和水等不同氢供体的角度入手,系统归纳和总结了自2007年以来5-羟甲基糠醛(HMf)选择性加氢制备dMf的催化反应体系及其最新的研究进展,并对今后HMf选择性加氢制备dMf的研究前景进行了展望。The renewable liquid fuel,2,5-dimethylfuran( DMF),which can be produced by the selective hydrogenation of 5-hydroxymethylfurfural( HMF) with high energy density,high boiling point,high octane number,and water insolubility,has attracted more attention all over the world.According to its excellent physicochemical properties,the momentous application values,and the broad market prospects,the various catalytic systems and the latest research progress for the selective hydrogenation of HMF into DMF from the point of the diversity of hydrogen donors such as molecular hydrogen,formic acid,alcohols,and water are systematically summarized.The future research trends are prospected to offer the valuable ideas and advices for the selective hydrogenation of HMF and provide the theoretical references and technical supports for the industrial production and practical application of DMF.淮阴师范学院博士科研启动基金资助项目(31HL001); 江苏省高校自然科学研究面上资助项目(14KJB480002); 国家自然科学基金资助项目(21106121