浅谈对外汉语词汇教学

在对外汉语教学中,词汇教学应该得到高度重视,教学中要分清词汇教学的重点和难点,重点讲解使用频率高的常用词;注意结合汉语构词规律进行词汇教学;同时注意词汇知识的系统性,加强词语之间的对比分析;注重词汇教学在各门课程的教学中加以强化;鼓励生活中注意运用已学词汇交际。     

高职应用文写作教学初探——以软件专业为例

针对当前高职应用文写作教学普遍存在忽视学生专业特点,学生学习兴趣不高,教学效果欠佳这一现象,笔者作了一些改革的尝试,即在授课班级针对学生专业特点,结合软件企业对应用文的需求组织教学内容,取得了比较好的效果。     

澳大利亚中小学外语优秀教师专业标准解析

澳大利亚《语言与文化优秀教师专业标准》的制定背景和内容,有四点启示:基础外语教育遵从国家利益取向的语言战略规划;体现教师专业结构,突出外语学科特色;强调教师最高标准,发挥教师发展主体性;注重标准出台前的充分准备和颁布后的教师培训.这些理念和特征为我国中小学外语教师专业标准的系统研究提供借鉴.     

浅析国内路桥的发展趋势

通过对我国各式桥梁的发展现状分析,介绍了我国公路桥梁的发展趋势,对依据不同地区经济状况发展路桥建设具有一定的参考意义.     

新时期关于图书馆员素质的思考

图书馆员的素质培养是提高图书馆服务水平的有效手段,只有从服务意识、市场意识、学科馆员意识和网络信息主管意识入手,才能不断提高图书馆员的整体素质,适应创新型社会的需求.     

素质教育视角下的高校体育

从素质教育研究的视角出发,论述了素质教育、体育教育及其关系,认为体育教育是高校实施素质教育的基础。     

Vapour–Liquid Equilibrium for <Emphasis Type="Italic">N</Emphasis>, <Emphasis Type="Italic">N</Emphasis>-Dimethylformamide + Benzene + Thiophene via Gibbs Ensemble Molecular Simulation

The selection and design of an optimal solvent for extractive distillation require reliable vapour–liquid phase equilibrium data and knowledge of extraction mechanisms. Compared with time-consuming experiments, molecular simulation presents great potential in research on the properties of fluids. Therefore, in this work, Gibbs ensemble Monte Carlo was applied to successfully predict the vapour–liquid phase equilibrium data of binary and ternary systems containing benzene, thiophene and N, N-dimethylformamide (DMF) at P = 101.3 kPa. The explicit hydrogen version of the transferable potentials for phase equilibria potential model was chosen for benzene and thiophene, whereas the OPLS potential model was selected for DMF. The predicted phase diagrams were compared with experimental data and the UNIQUAC thermodynamic model. A good agreement was obtained, which corroborated the validity of the potential models. In addition, the extraction mechanism was explored by radial distribution function (RDF) of the liquid-phase structure. The RDFs showed that thiophene and benzene shared a similar liquid-phase structure because of the intermolecular interaction. The distinct difference between the RDFs of DMF/benzene and those of DMF/thiophene is that the oxygen atom of DMF is more associated with hydrogen atoms of thiophene than that of benzene, which may be responsible for the extraction effect of DMF.     

论成人高等教育课程开发的应然走向

本文以终身教育思想审视成人高等教育课程开发,提出“人性化”是其应然走向,具体表现为走向成“人”、走向主体、走向多元。     

终身教育视野下高等教育观念的解构与嬗变

终身教育作为一种具有国际性和时代性的教育思潮，具有深刻内涵．它对高等教育的功能观、人才观、质量观产生重要影响；高等教育从终结性教育转向终身教育的一部分，从单一的精英教育转向多样的大众化教育高等教育新观念的解构嬗变过程是教育文化的变迁创新过程．     

Hydrolysis of Raw Corn Starch Granules by Glucoamylase and Product Inhibition During the Hydrolysis

Raw corn starch granules were hydrolysized by glucoamylase in a chemostat. The hydrolysis of three different-sized granules shows that smaller granules undergo more hydrolyzation than larger ones. After 78 h, 97% of the granules was hydrolysized with diameter between 0.15 mm and 0.3 mm at 50℃. When corn starch concentration increased from 100 g/L to 250 g/L, the amount of reducing sugar produced was proportional to the initial substrate concentration and no substrate inhibition phenomenon appeared. In order to study the product inhibition exactly, the product from hydrolysis reaction itself was added into the hydrolysis system at the beginning of starch hydrolysis.Product inhibition with different quantities of product added were studied in the initial several hours,during which period enzyme inactivation could be neglected and product inhibition could be studied separately. The experiments indicate that product inhibition happens when the additional quantity exceeds 9.56 g/L.