Teaching Research on Spoken Chinese Lexical Chunks by South Korea Overseas Students in Junior Chinese Class

语块是人们语言使用中高频共现，在语义、结构、语用上相对固定的多词结构，也是二语学习者提高语言准确度和流利度的基础。语块的教学逐渐受到汉语学界的重视，但是区分学习者母语背景的汉语语块教学研究还较少。因此，本文尝试针对初级韩国留学生展开语块教学研究，考察初级韩国留学生口语中使用语块的难点，提出相应的教学方案，提高初级韩国留学生语块教学的针对性。全文一共分为五章： 第一章介绍本文的研究缘起、方法和意义。本文选用搜集的韩国留学生小规模口语语料为研究样本，结合统计分析和偏误分析提出教学方案，并通过实证研究验证教学的有效性。 第二章介绍语块的概念、教学及韩国学习者的相关研究，并着重分析口语语块的识别方...Lexical chunks are relatively fixed in the semantic, structure and pragmatics, and they are the basis for the language accuracy and fluency of the second language learners, which occur frequently in the language. The teaching of lexical chunks has been paid more and more attention by the Chinese scholars, but there are few studies about the use of Chinese spoken lexical chunks of learners who have...学位：汉语国际教育硕士院系专业：海外教育学院_国际汉语教育学号：2652014115127

Effect of Transition Metal Oxides and Chemical Bleaching Process on the Whiteness of Kaolin

高岭土是一种重要的矿物资源，广泛用于日用陶瓷、造纸、油漆、涂料、塑料、橡胶、填料等许多工业领域。由于高岭土中含有的铁杂质降低了高岭土的白度，影响了其工业应用价值。因此，除铁增白已成为高岭土应用行业的首要任务。本文以龙岩高岭土有限公司提供的高岭土矿为研究对象，探讨几种过渡金属氧化物对高岭土白度的影响规律，并采用单因素和正交实验进行漂白工艺研究，重点讨论了保险粉用量、pH值、固液比及反应时间等因素对高岭土白度的影响。通过研究得到如下实验结果：1．八种过渡金属氧化物都会不同程度地降低高岭土的白度，特别是烧结白度。其中，TiO2和ZnO的影响相对较小；Cr2O3、MnO2、Co2O3等其它五种氧化物的...Kaolin was widely used in various industry departments such as ceramics,paper, paint, plastic, rubber, stuffing and etc. owing to its excellent technologic performance. However，the iron impurity will decrease the whiteness of kaolin，and reduce its application value correspondingly. Therefore，removing iron from kaolin is necessary and indispensable in the application of kaolin. In this reseach，thee...学位：工学硕士院系专业：化学化工学院材料科学与工程系_材料学学号：2005130196

白寿彝先生回族史学理论研究贡献

白寿彝先生在长达70年学术生涯中,对回族史学理论研究作出了突出贡献。先生批判“历史无用“论,明确回族史在中国历史研究中的重要地位;率先提出回族史与爱国主义思想教育相结合的理论,回族史研究中“三个分不开“理论,指明回族史研究的现实功用;首次提出回族史研究目标,明示回族史研究方向;先生在回族形成与发展理论,尤其是回族形成时间、来源、构成成分及发展阶段等方面均有卓越贡献;尤其是首次提出伊斯兰教是回族的一种民族形式的著名论断,解答了回族与伊斯兰教关系这一回族史研究中长期困扰学术界的疑难问题;对回族历史人物的认识与评价问题,亦有开拓性研究

白寿彝先生对回族史研究的方法论贡献

白寿彝先生是20世纪中国史和中国民族史领域久负盛名的回族学者。先生在长达60年学术生涯中,始终为做好回族史研究而探索。首次明确回族史研究价值取向、研究目标及指导理论;首次提出回族史研究需要具备广阔视野,主张加强回族研究机构间配合,学术交流形式灵活化、常态化,制定长期规划及基金设置,拓展研究领域等;在回族史料如何收集、收集哪些材料,材料形式、分类与处理,研究人才培养标准、条件、修养及基本训练等方面提出建设性意见;特别注重学风问题,强调实事求是学风和科学态度,反对感情用事。这些对新时期做好回族史研究具有重大指导意义

RESEARCH ON HIGH-RISE BUILDING AND ITS URBAN ECOLOGICAL ENVIRONMENT

【中文文摘】提出了高层建筑城市生态学的概念 ,在回顾高层建筑发展历史的基础上 ,指出高层建筑的城市生态问题 ,关系到城市居住区生活质量的改善以及城市生态环境的健康发展。结合国外高层建筑的建设 ,提出了可行的方案与对策 【英文文摘】The concept of high\|rise building ecology was raised in this paper.Based on the review of high\|rise building development,urban ecology problem that related with the improvement of residential environment quality and healthy of urban ecology environment were researched.Combined with the history of high\|rise building development,the advisable plan and countermeasure were advanced in the paper.宁波市计委研究项目 (甬计规批 [2 0 0 1] 12号

子宫移植中缺血再灌注损伤的研究进展

子宫移植是治疗子宫性不孕症可行的治疗方法,目前全球共实施52例人类子宫移植,经移植子宫活产者仅14例,成功率低。子宫移植仍面临许多科学问题亟需系统研究,缺血再灌注损伤可能对移植术后子宫的存活和功能恢复具有关键影响。因此,研究子宫的缺血耐受性至关重要,尤其是来源于已故捐献者的子宫。本文总结了有关子宫移植缺血再灌注损伤的研究,对其进展做一综述

Preparation of Aluminum Titanate Film by Sol-gel Method and Its Fused Salt Corrosion Resistance

以钛酸四丁酯和硝酸铝为原料,乙醇为溶剂,通过溶胶-凝胶法在碳化硅基片上制备钛酸铝薄膜。借助dSC-Tg、Xrd、fE-SEM和SEM研究了钛酸铝干凝胶在热处理过程中的热重效应与相变化、薄膜的晶相组成、显微结构及其抗硝酸钠熔体腐蚀性能。结果表明:制备的钛酸铝薄膜表面均匀、致密,晶粒尺寸在100nM左右,具有良好的抗硝酸钠熔体腐蚀性能。Aluminum titanate ( AT) film coated on the surface of SiC substrate was prepared via Sol-gel method,using tetrabutyl titanate and aluminum nitrate as raw materials,ethanol as solvent.The weight loss and phase transformation of AT xerogel during the heat treatment,the crystal composition and microstructure of the AT film and its corrosion resistance to fused sodium nitrite salt were studied by means of DSC-TG,XRD,FE-SEM and SEM.The results show that the prepared AT film is uniform and dense with the crystal size of about 100 nm,and has good corrosion resistance to fused sodium nitrite.国家自然科学基金(No.50762005;No.50962006);中国科学院特种无机涂层重点实验室开放基

PREPARATION of ALUMINUM TITANATE FILM VIA NONHYDROLYTIC SOL–GEL METHOD AND ITS FUSED SALT CORROSION RESISTANCE

采用非水解溶胶–凝胶工艺,以无水三氯化铝和四氯化钛为前驱体,乙醇为氧供体,环保型高沸点二元酸酯混合物AgSE为溶剂,四丁基溴化铵为稳定剂,在碳化硅基片上制备出均匀、致密的钛酸铝薄膜。借助差热–热重、X射线衍射、场发射扫描电镜和扫描电镜等研究了钛酸铝干凝胶热处理过程中的相变化、钛酸铝薄膜的晶相组成、显微结构及其抗硝酸钠熔体腐蚀性能。结果表明:在750℃低温制备的钛酸铝薄膜晶粒约为10nM,薄膜具有良好的抗硝酸钠熔体腐蚀性能;热处理温度提高到1350℃后,钛酸铝薄膜的晶粒增大至120nM左右,晶界面积急剧减小,无定形相消失,钛酸铝薄膜的抗硝酸钠熔体侵蚀性能大大提高。The homogeneous dense aluminum titanate film was coated on the silicon carbide substrate via nonhydrolytic sol–gel method (NHSG), using anhydrous aluminum chloride and titanium tetrachloride as the precursors, ethanol as oxygen donor, binary mixed ester AGSE with the characteristic of environmental protection and high boiling point as solvent, and tetrabutyl ammonium bromide as stabilizer.The phase transformation of Al2TiO5 xerogel during heat treatment, the crystal composition and microstructure of Al2TiO5 film and its corrosion resistance to fused sodium nitrite were studied by means of differential thermal analysis–thermogravimetry, X-ray diffraction, field emission scanning electron microscopy and scanning electron microscopy.The results show that Al2TiO5 film annealed at 750 ℃ has the crystal size of about 10 nm and possesses good corrosion resistance to the fused sodium nitrite; the crystal size will grow to 120 nm or so when the heat treatment temperature increases to 1 350 ℃.The performance of Al2TiO5 film heat-treated at 1 350 ℃ will be greatly improved due to both sharp decrease of the grain boundary area and the dis-appearance of amorphous phase.国家自然科学基金(50762005;50962006);中国科学院特种无机涂层重点实验室开放基金资助项