《仪器分析》课程教学改革探讨

以培养应用型人才为目标,结合仪器分析课程的特点及社会发展趋势,并从河南大学化学化工学院的实际出发,从整体优化教学内容、改革课程结构、改革实验体系、加强实践环节等几个方面入手,对仪器分析课程的理论与实践教学改革进行探索,特别是结合实验教学的组织形式开放、实验内容开放、实验室指定时间开放以及教学评价方式开放等措施,构建开放式仪器分析实验教学模式,从而达到真正素质教育的目的。     

分析化学课程教学改革

以培养应用性人才为目标,结合分析化学学科特点及社会发展趋势,针对中南大学实际情况着重从整体优化教学内容,改革教学模式和教学方法,改革课程结构,改革实验体系,加强实践环节等几方面入手,对分析化学理论与实践教学进行了改革尝试,同时通过实验教学的组织形式开放、实验内容开放、实验室指定时间段开放以及教学评价方式开放等措施,构建开放式分析化学实验教学模式,从而达到真正落实素质教育,切实提高学生的综合能力的目的。     

创新驱动下水质工程学实验课程体系的构建

《水质工程学》实验课程是培养给水排水工程高级专业技术人才必要的实践性教学环节及专业基本技能的重要基础,是培养学生分析能力、提出问题和解决问题能力的重要专业课程之一。本文从我校水质工程学实验课程开设的实际情况出发,重新构建实验课程教学体系,并借助计算机操作平台,构建虚拟仿真水处理系统,完成水处理系统全过程控制、运行管理等实验教学工作。通过实验教学体系构建,能够让学生在开放、包容的教学体系中自主开展实验,有利于提升学生的实践能力和创新创业能力。     

《化学教学论实验研究》开放教学的改革探索

为培养合格的中学化学教师,根据《化学教学论实验研究》课程特点,构建了适于开放教学的《化学教学论实验研究》课程内容体系,并从教学方法、考核评价等方面进行开放教学改革探索,有效地调动了学生的学习积极性,成效明显.     

基于在线开放课程建设的分析化学实验教学改革

针对我校现有分析化学实验课程传统教学中存在的问题,以学校精品在线开放课程建设为契机,开展了基于在线开放课程的线上线下相结合的混合式教学实践。从课程资源建设、教学方法、考核评价方式三个方面进行了改革探索,旨在提高学生的学习兴趣、自学能力及综合科研能力,提高课堂教学质量。通过近三年的课程建设及运营,线上线下相混合式教学引入到实验课程中,取得了较好的教学效果。     

基础化学实验开放式教学模式的研究与探索

本文对基础化学实验课程的教学模式做了研究与改革探索,在实验课程教学中实施了开放式教学法即:实验时间开放、实验项目开放、实验仪器药品开放,经过多年的教学实践证明,开放式实验教学方式,可以极大地促进学生实验课程教学的积极性和主动性,可以激发学生的实验兴趣,培养和锻炼学生的创新能力与综合能力,极大地提高了实验课程的教学质量。     

基于Blackboard平台的精细化工实验网络课程建设与实践

为弥补《精细化工实验》传统教学的不足,利用Blackboard平台作为辅助教学手段,构建了《精细化工实验》网络课程。阐述了Blackboard平台在《精细化工实验》教学中的建设和实践。实践表明,通过构建网络课程与传统课堂教学相结合的实验教学能够有效地激发学生自主性学习的兴趣,学生的学习效率得到了有效提高,提升学生的实践创新能力。     

“新工科”化工类课程建设教学探索与研究——以《PLC可编程控制器》课程为例

根据"新工科"背景下的专业人才培养模式要求,结合《PLC可编程控制器》课程实践性与逻辑性较强的特点,依托西北大学校级精品在线开放课程项目,对该课程的课程认知、理论教学、实验实践教学及考核形式四个环节进行探索与研究,创新课程教学模式,提升教学质量。     

地方高校生物工程专业“三层次四结合”实践教学体系的构建与实施

针对实践性教学存在的问题,结合生物工程专业培养目标和广州市生物产业发展,围绕生物工程专业的实践教学体系进行了长期的探索与实践。在创造性地整合出"生物工程上游技术实验"、"生物工程中游技术实验"、"生物工程下游技术实验"3门专业实验课程基础上,将生物工程专业教学计划中的30门课内实验课设置成13门独立设课的实验课程,形成了基础性实验课程、提高性实验课程、研究型实验课程"三层次"的实验课程新体系;构建了培养学生实践能力为核心的校内课堂实验—校内科技/专业技能竞赛—校外实习—毕业论文(设计)—教师科研"四结合"实践教学体系。这些教改成果陆续体现于人才培养方案中并得到贯彻实施,硬件和软件平台的建设有机衔接了实践教学各环节,学生得到了多方位的锻炼。     

高职药学类专业实践教学课程思政的探索实践

药学类专业在实践教学中应重视课程思政教育,注重培养学生的职业道德和职业素质.通过加强实验实训室教学环境建设,挖掘建设符合我院特色的实践教学思政资源,提高教师思政教学能力,强化实践教学课堂教学督导、评价,构建包含德育指标的实践课程评价机制,很好的助力了药学类实践教学课程思政的顺利实施.     

乙苯,苯乙烯的生产及合成乙苯,苯乙烯催化剂的研究进展

苯乙烯是重要的石油化工原料。本文介绍了国内外苯乙烯生产的发展概况，合成乙苯，苯乙烯所用的催化剂种类，并就苯乙烯生产及催化剂的发展趋势提出了自己的观点。     

Synthesis and characterization of homopolymers and copolymers of various acrylates and acrylonitrile

Various homopolymers and copolymers of methyl acrylate, ethyl acrylate, butyl acrylate, and acrylonitrile in different feed ratios were synthesized. These were characterized by IR, ¹³C-NMR, DSC, DTA, and TGA. Spectroscopic characterization helped in differentiating copolymers of different mol ratios. Thermal analysis revealed different degradation patterns for homopolymers and copolymers. The temperature and energy changes associated with various phase transitions were dependent on the chemical composition of homo- and copolymers, as expected. © 1993 John Wiley & Sons, Inc.     

生物质气化及生物质与煤共气化技术的研发与应用

总结了生物质原料的特点及生物质单独气化的缺点;介绍了国内外生物质气化技术及生物质与煤共气化技术的研发与应用现状;分析了在此领域国内外的发展趋势与前景;概括了开展生物质与煤共气化技术研发的意义。     

Comparison of the Adhesion and Cohesion of Triblock and Random Copolymers of Styrene and Butadiene

A substantially greater detachment energy is required to strip a polyethylene tereph-thalate (Mylar) film from a styrene-butadiene-styrene (SBS) triblock copolymer compared to that for peeling from a random styrene-butadiene (SBR) copolymer. This is true even though the intrinsic interaction between the Mylar and each elastomer is expected to be similar because of their virtually identical chemical composition. It is proposed that this difference in peel strength (between the SBS and SBR) is a consequence of the much higher dissipative capacity of the former elastomer. Another manifestation of this is the higher cohesive tear strength of the SBS compared to the SBR. Extents of energy dissipation within each elastomer during detachment of the Mylar adherend are consistent with the hypothesis that the average maximum stress experience before detachment is some similar fraction of each elastomer's tensile strength.     

责任和责任心的涵义与结构

责任是人应主动承担的角色义务和对其因过失所造成后果应承担的责罚.有两层涵义:一是义务;二是后果.责任心是个体自觉做好分内事务和履行道德义务的心理倾向,是个性心理品质成分中自我特征维度上的重要内容.责任心具有两个方面的涵义:一是角色分内职责;二是角色道德义务.责任心是一种通过责任认知、责任个性和责任适应的动态形式表现出来的静态品质,责任心是责任心过程结构与责任心关系结构相互制约、相互影响的统一体.     

二甲基二烯丙基氯化铵和丙烯酰胺的合成及应用

用复合引发体系(过硫酸盐-偶氮类引发剂)和脂肪胺类氧化还原体系引发,在实验室获得了单体转化率≥98%,特性粘数高于13.6 dL/g的阳离子共聚物PDA,探讨了控制聚合物分子量的影响因素.     

Kinetics and Mechanism of Oxidation of Mono- and Polyacetals

Abstract

Kinetics and mechanisms of oxidation of 6 acetals by molecular oxygen and ozone in liquid phase have been studied. Reaction with molecular oxygen (70°C, 15–16 hr) leads to the formation monoethers of the corresponding glycols with 68–90% selectivity. Salts of metals and complexes with crown-ethers have increased the reaction rate significally. Ozone have reacted with acetals with formation similar products. The mechanisms of intermediate stages have been proposed.     

钾盐资源及钾肥供需情况分析及预测

阐述了国内外钾盐资源及钾肥生产现状,对国内外钾盐的供需形势进行了分析及预测,从资源、原材料、国际市场三方面提出了解决我国钾盐短缺的措施。     

Electronic structures and reactivities of monometallic and bimetallic clusters of Au and Cu

The variation of the Au 4f binding energy of Au clusters with the cluster size has been established by measuring the binding energies of clusters whose size distributions were independently determined by HREM and STM. The binding energy increases significantly when the cluster size is less than 2 nm. Au-Cu bimetallic clusters of the composition Cu₃Au have been deposited for the first time on carbon substrates. The shifts in the core level binding energies of the bimetallic clusters show the effect of alloying in the case of large clusters, but show effects of both alloying and cluster size in the case of the small clusters. The interaction of CO with Cu₃Au clusters is stronger than with a bulk Cu metal. The interaction of CO with small Cu clusters also seems to be stronger than with bulk Cu or with large Cu clusters.     

Wetting properties of homopolymers and copolymers of pentafluorostyrene and methylacrylate and homopolymer blends

Polypentafluorostyrene (PPFS), polymethylacrylate (PMA), and poly(pentafluorostyrene-co-methylacrylate), poly(PFS-co-MA) were prepared and the wetting characteristics of polymer blends of PPFS and PMA were compared with that of poly(PFS-co-MA) via contact angle measurements. The critical surface tension of polypentafluorostyrene was found to be 22.6 dyne/cm, which is comparable to the value reported for polytrifluoroethylene (22 dyne/cm). The critical surface tension of poly(PFS-co-MA) is not linearly related to its composition. The polymer blends of PPFS and PMA exhibit significant surface enrichment of the fluoropolymer. The harmonic-mean method¹ was employed to determine surface tensions of these polymers and many known polymers. It is found that the method produces useful surface tension data provided the contact angle values are derived from testing liquids of dissimilar polarity.