The Application of Micro Lecture in Teaching Reform of Chemical in University

微课作为一种新的教学资源,随着网络技术的发展,备受关注。该文章介绍了微课发展历程,并对国内外微课的研究现状进行了简要分析,并在此基础上,阐述了高校内化学类学科如何利用微课提高教学质量。As the network technology development, more and more attention was paid to the new teaching resource- micro lecture. In this paper, the development of micro lecture was introduced, and at the same time, the research status of the micro lecture at home and abroad was presented. On the basis, this paper expounds the question how to use micro lecture to improve the teaching quality in the chemical class.广西高校人才小高地建设创新团队资助计划项目(桂教人[2011]47号);广西民族大学2014年度高等教育教学改革工程立项项目(2014XJZZ09);2016年度广西高等教育本科教学改革工程项目(2016JGB190

Application of Mobile Phone Application＋Micro Lecture in Biotechnological Pharmaceutics

将时下流行的手机软件App与时下流行的教学模式微课相联系,将其应用在《生物技术制药》课程教学中,依据App的特点对生物技术制药课程内容进行重新改版设计,应用微模块设计理念,设置上课模块、练习模块、互动模块、匿名交流模块等模块,从不同角度了解学生的学习情况,并针对课程学习效果对教学内容进行调整,意在保证学生的学习质量。App+微课的教学模式,继承了微课教学的形象化、视频化的优点,同时也弥补了微课教学中缺失的互动,App的存在将教学演化成了随时随地,可为不同层次的学生提供属于他们的学习方式。The software App and micro lecture,the popular mobile phone and the popular teaching mode,were connected and applied in Biotechnological Pharmaceutics. Based on the property of app,the content of Biotechnological Pharmaceutics was redesigned. Micro lecture module,interaction module and anonymous communication module were designed to understand the learning process and learning situation of the students,so as to improve their learning quality by altering the teaching content,according to their learning result. It was the combination of App with micro lecture that can retain the advantages of the visualization in a micro course teaching and meanwhile make up for the loss of interaction during teaching. The use of App in teaching made teaching at any time and can give different learning ways to different levels of students.广西高校人才小高地建设创新团队资助计划项目(桂教人[2011]47号);广西高等学校特色专业及课程一体化建设项目(GXTSZY008);广西高等教育教改工程项目(2016JGB190);广西民族大学2014年度高等教育教学改革工程立项项目(2014XJZZ09);2016年度广西民族大学“相思湖青年学者创新团队(民大[2016]178号

采用多种措施提高《化工原理》教学效果

针对目前化工原理课程教学中存在的问题,通过采用提高教学趣味性,加强工程观念,运用多媒体辅助教学等措施提高学生学习积极性,改善教学效果

Progress of Oxygen Transfer of Wasterwater Aerobic Treatment Process

溶解氧含量是影响污水好氧生物处理效果的一个重要因素。因此,强化废水中的氧传递一直是污水处理领域研究开发的一个热点。文章综述了好氧生化处理废水供氧技术、近年来氧传递研究的内容,最后指出了国内污水生化处理中强化氧传递研究的发展趋势。 Sufficient dissolved oxygen （DO） is necessary for treatment of contaminated water by using aero-bic microbes. So oxygen transfer has always been a host spot to research and development in the field ofwastewater treatment. In this paper, aeration technology in aerobic biological treatment of waste water and research content of oxygen transfer in recently were summarized. Finally, development tendency of enhancing oxygen transfer in biological treatment of waste water in domestic was pointed out as well.广西高校人才小高地建设创新团队项目资助(桂教人[2011]47号

强酸性阳离子交换树脂催化制备醋酸正丙酯的工艺研究

以正丙醇、冰醋酸为原料,强酸性阳离子交换脂作为催化剂,催化合成醋酸正丙酯,考察了催化剂的使用寿命,再生能力及反应温度、反应时间、催化剂用量、酸醇摩尔比对合成醋酸正丙酯的影响.强酸性阳离子交换树脂催化制备醋酸正丙酯适宜的条件为:反应时间为2h,催化剂用量(以醋酸质量计)为15%,沸腾状态反应,酸醇摩尔比为1∶1.在选定的实验条件下,反应的转化率为68.06%.催化剂的使用寿命较长,再生能力较强.广西教育厅重点科研资助项

Effect of component of bi-functional catalysts on one-step synthesis of dimethyl ethe

采用干磨法,选用不同种类甲醇合成组分和不同种类的甲醇脱水组分制备双功能催化剂,并在高压固定床反应器评价其催化性能。研究表明,催化剂JC207是一种较优的甲醇合成催化剂,其最佳配比为80%。分子筛是一种较好的甲醇脱水催化剂,其最佳配比为20%。通过寿命试验和催化剂的XRD表征发现催化剂晶相没有改变,催化剂结构保持稳定。Bi-functional catalysts were prepared by dry grinding of different components of catalysts for methanol synthesis and methanol dehydration.Their catalytic activity were evaluated with a high-pressure fixed-bed reactor.Results indicated that JC207 was a good catalyst for synthesis of methanol.Its optimum ratio was 20%in bi-functional catalyst.Zeolite was a good catalyst for methanol dehydration.Its optimum ratio was 80%in bi-functional catalyst.Stability test and XRD analysis of bi-functional catalyst confirmed that the crystalline phase of catalyst did not change,and the structure of catalyst remained stable.广西科学研究与技术开发计划资助项目(桂科能0992928-1

Progress of Biomass-syngas Production and Synthetic Liquid Fuels from Biomass-syngas

主要介绍了国内外生物质气化制备合成气工艺以及国内外生物质合成气合成液体燃料的工艺技术。生物质直接气化技术在早期得到了较好的发展,但生物质收集困难,限制了其发展。近几年国内外开发了生物质两段气化工艺技术。该技术通过快速裂解把生物质裂解为能量密度相对较高的快速裂解油(生物油),通过收集生物油制备合成气路线可以降低整个系统的成本,该技术可能成为未来生物质合成液体燃料的工业化技术。The technology of biomass-syngas production from biomass and the technology of synthetic liquid fuels from biomass-syngas at home and abroad were introduced.Biomass gasification technology was developed in early research,but biomass was difficult to collect,so the development of biomass gasification technology was restricted.In recent years,the two-step biomass gasification technology was developed both at home and abroad.This technology is used to transform biomass into fast pyrolysis oil（bio-oil） with high energy density.The bio-oil collected can be used to produce biomass-syngas.The technology can reduce the cost of the entire system,and it will be the industrial technology of synthetic liquid fuel from biomass in the future.广西科学研究与技术开发计划项目(桂科能0992928-1

氯乙酸甲酯合成中氯乙酸含量分析方法探讨

本文研究了甲醇——一氯乙酸——一氯乙酸甲酯混合体系中一氯乙酸的分析测定方法．用８０％（Ｖ／Ｖ）乙醇水溶液配制ＮａＯＨ标准溶液，在本实验条件下测定结果的准确度和精密度较高．操作简便，并提高了分析速度广西民族学院重点科研资助项

Cultivation and Characters of the Aerobic Granules for Processing Waste Water in SBR System

好氧颗粒污泥是目前水污染处理领域研究的一个热点.该文利用自制的SBR反应器培养好氧颗粒污泥,对好氧污泥颗粒化的过程及其性能进行研究和表征.用粗盐改变废水的表面张力,用活性炭改变废水的固含率,在人工模拟废水和餐饮废水体系中比较好氧颗粒污泥和絮状污泥对废水COD的去除率.实验结果表明:成熟好氧颗粒污泥性能良好,沉降速度快,对污染物的去除能力较强,其各项理化指标均优于普通活性污泥.在相同的实验条件下,好氧颗粒污泥COD去除率高于传统的絮状污泥.The study of aerobic granular sludge is one of the most popular research areas in the waste water processing.In this paper,self-made SBR reactor was used to cultivate aerobic granular sludge,and the process of aerobic sludge granulation and its performance were studied and characterized.In order to improve the oxygen transfer rate,oxygen consumption rates under different conditions were measured as following： coarse salt was used to change the surface tension of the waste water;activated carbon was used to change the solid holdup of the waste water.Finally,the aerobic granular sludge and the raw sludge removal rate of COD in the waste water were compared in both artificial wastewater system and food wastewater system.The results show that： the performance of the mature aerobic granular sludge is good,the settling rate is quick,the pollutant removal ability is strong,and its physical and chemical indicators are better than the conventional activated sludge.Under the same experimental conditions,4-hour aeration wastewater COD removal rate of aerobic granular sludge is better than conventional flocculent activated sludge.广西青年科学基金资助项目(桂科青0542019);广西科学研究与技术开发计划课题(桂科能0992928-13