水分胁迫对茶树叶绿素a荧光动力学的影响

水分胁迫下，茶树叶片及叶绿体的光系统Ⅱ(PSⅡ)原初光能转换效率(Fv／Fm)和PSⅡ潜在活性(Fv／Fo)降低，而且随着水分胁迫的加强，降低越明显。三个茶树品种对水分胁迫的响应，也存在一定的差异。表明它们的抗旱性不同，其中福鼎大白茶和黔湄809抗旱性较强。黔湄303较差。     

化学实验的绿色化和环境保护

阐述了绿色化学、化学实验绿色化的概念。绿色化学与环境保护的关系;化学实验绿色化是实验教学发展的趋势,简述了绿色化学实验的内容。     

Modeling the kinetics of methane conversion in steam reforming process of coke-oven gas based on experimental data

Steam-reforming is an effective approach for upgrading methane and hydrocarbon of coke-oven gas into CO and H2, but the kinetic behavior needs more study. We investigated the conversion of methane in coke-oven gas by steam reforming process in an electric tubular flow at 14 kPa with temperature varying from 500 °C to 950 °C, and developed a kenetic model for , ignoring the effects of adsorption and diffusion. The optimal dynamic conditions for methane conversion 14 kPa are as follows:the ratio of the amount of water to the amount of methane is from 1.1 to 1.3;the reaction temperature is from 1 223 K to 1 273 K. The methane conversion rate is larger than 95% when the ratio of the amount of water to the amount of methane is 1.2 at a temperature above 1 223 K with the residence time up to 0.75 s.     

Teaching Modern Chemistry through ‘Recurrent Historical Teaching Models’

Today there are little more of 3 million chemist all over the world producing about 800,000 papers a year. They produce new substances – from some hundreds in 1800 to about 20 million now – the vast majority artificial. This rate is growing quite fast. Once the majority of chemistry teachers all over the world used textbooks as the main (sometimes the only) source of information, we became, without wanting to... history teachers! If ‘scientific literacy’ is the aim of science lessons in school, it is much more than the literacy now developed in science classrooms. It must include an understanding of the nature and process by which scientific activities are carried out. Recognition of the exponentially chemistry knowledge growth and the incompleteness of the current chemistry textbooks are thus intimately related to recognition of the need for recurrent historical teaching models.     

催化动力学光度法测定微量铁

根据铁对过氧化氢氧化酸性铬蓝 K有强烈的催化作用 ,并使之褪色明显的特性 ,研究了最佳实验条件和动力学参数 ,建立了测定痕量铁的新方法。     

《化学工业分析》专业课程考核改革与实践研究

为了充分发挥考试、考核在教学和人才培养中的指导作用,结合《化学工业分析》专业课程的教学目标和要求,改革原有的考核模式,采取将课堂出勤、课堂互动、课后作业、课程学习心得总结以及期末总结性考核有机结合起来的多元化考试、考核方法,激励和提高学生的学习兴致与专业技能。实践证明,该多元化的考核方式激励了学生的学习兴致,改善了课程教学质量和效果,提高了学生的专业技能水平,开发了学生的创新实践能力。     

搞好实验教学 注重学生能力和素质的培养

搞好实验教学课教学，应注重学生能力和素质的培养。要做好实验课教学工作，首先应重视实验课教学，并在此基础上切实抓好实验课教学，在教学时注意对学生能力的培养，使实验对提高学生的综合素质发挥重要的作用。     

Assessing the Higher National Diploma Chemical Engineering programme in Ghana: students’ perspective

Chemical engineers have played key roles in the growth of the chemical and allied industries in Ghana but indigenous industries that have traditionally been the domain of the informal sector need to be migrated to the formal sector through the entrepreneurship and innovation of chemical engineers. The Higher National Diploma Chemical Engineering programme is being migrated from a subject-based to a competency-based curriculum. This paper evaluates the programme from the point of view of students. Data were drawn from a survey conducted in the department and were analysed using SPSS. The survey involved administering questionnaires to students at all levels in the department. Analysis of the responses indicated that the majority of the students had decided to pursue chemical engineering due to the career opportunities available. Their knowledge of the programme learning outcomes was, however, poor. The study revealed that none of the students was interested in developing indigenous industries.     

产学研互动,提高化工专业本科毕业论文（设计）质量的探索

本文分析了目前毕业实习（论文）存在的问题,提出了毕业论文（设计）实施产学研互动教学模式的可行性,介绍了实施这种教学模式的几种方式、采取的措施和获得的成效,并对进一步实施产学研互动教学模式提出了几点设想。     

C_2(a~3Π_u)自由基与C_2H_6反应的动力学计算

用密度泛函理论B3LYP方法,在6-311G(d,p)基组下,优化得到C2(a3Πu)+C2H6→C2H+C2H5反应各驻点(反应物、过渡态和产物)的几何构型,对其进行振动分析,并计算了它们的能量.在CCSD/6-311G(d,p)水平下单点能计算得到的反应势垒为24.47kJ/mol.采用传统过渡态理论,计算了温度范围50K～2000K的反应速率常数.实验结果表明,随着反应温度的升高,反应速率逐渐升高,反应的平均活化能也随着温度的不断升高而不断增大.