基于微课的翻转教学模式研究

化学化工文献检索与利用在化学化工专业教学中具有不可替代的重要作用。文章结合微课和翻转课堂模式,针对传统文献检索与利用教学中存在的问题,提出了一种基于微课的化学与化工文献检索与利用翻转教学模式。研究结果表明,该教学模式不仅能够提高学生的实践操作能力、增加学生对知识的需求渠道,还能锻炼学生的自主能力,同时对探索大学教育模式、服务高校素质教育具有重要指导及实践意义。     

化学化工文献检索课程中课程思政改革探索

高等教育的根本任务是立德树人,在专业课中融入课程思政,成为了实现这一目标的最主要渠道,《化学化工文献检索》是一门化工专业学生重要的专业选修课之一。初步分析了化学化工文献检索的特点以及教学现状,阐述了在该课程中加入思政元素的重要性,并进一步以此课程为依托,通过讨论思政教育理念与化学化工文献检索课程有机融合,探索化学化工文献检索的思政改革。     

如何激发学生对化学化工文献检索课的兴趣

结合教学实际,提出了激发大学生《化学化工文献检索与利用》课学习兴趣的可行性途径,包括让学生自由选择感兴趣的实习课题、提供信息交流平台、启发式教学展现文献检索的魅力、课堂举例贴近学生生活、体现化学专业教师优势,分享个人检索经验等多种方法和手段。     

《化学化工文献检索》课教学改革探索

分析了化学化工文献检索课的教学现状,针对目前大学生文献检索能力和科研基础薄弱的问题,提出了《化学化工文献检索》课在教学内容上增加化学化工外文文献阅读能力、课题分析与文献分析能力等训练;在教学形式上突出实践教学、综合考核等改革措施;课程最后和毕业环节的外文翻译、开题报告和文献综述相结合,大大提高了学生科研创新能力。     

浅谈化学化工文献检索课程改革

介绍在化学化工文献检索课程教学改革中,培养学生的检索化学化工文献的方法和能力,重点使学生掌握化学化工文献的网上检索,进一步提高学生独立分析问题和解决问题的科研能力.     

关于化学化工专业英语教学的思考与探索

化学化工专业英语是我院化学化工专业本科生的一门非常重要的专业必修课,课程注重学生英语实际运用能力的培养。文章结合专业英语课程的特点,对教学过程中常出现的问题与难点进行剖析,并结合教师的教学经验,从教材和教学内容的改革、教学模式调整和如何调动学生的学习积极性、创新师资组合和发挥教师特长、注重专业英语课程与科技文献检索课程和毕业设计环节的结合等方面进行了探索和改革,提出了一些中肯的建议。     

浅议地方高校化工专业文献检索教学问题与对策

通过统计2016～2019年有关《化工文献检索》方面的论文,根据化工文献检索课程的特征和教学现状,从整合和完善教学内容、网络平台、数据库,培养学生分析和利用文献信息以及专业英语-文献检索合并教学等方面进行思考与探讨。从而实现《化工文献检索课程》教学的基础目标,让学生在有限的教学课时内能够充分掌握检索信息并合理利用的有效方法。     

关于化学化工文献检索课程教学的思考与探讨

文章分析了本科生化学化工文献检索课程教学的现状及存在的问题,在教学内容、教学方式、实践教学等方面阐述了本课程的特点和教学改进措施,提出了结合学生学科竞赛和毕业论文进行教学实践的环节,以探讨新形势下高等院校化学化工文献检索的教学改革。     

浅谈Chemoffice软件在化学化工文献检索课程中的应用

简要概述了Chemoffice软件的特点、分类以及该软件在化学化工文献检索课中的必要性和简单应用。提倡将Chemoffice软件与化学化工文献检索课程相结合,通过教师演示、课堂练习及课后拓展练习等方法实现Chemoffice软件与课程的结合。通过在课程中运用该软件,提高学生的自主学习能力,从而使学生更直观、更熟练的掌握课程教学内容,达到教学目的,为今后的毕业论文设计及工作打下基础。     

化学化工文献检索和利用课程教学改革探讨

本文针对大学生文献检索课程学习的现状和存在的问题,强调文献检索课程设置应分阶段渗入大学生的整个教育过程中,不断改进教学方法和手段,结合化学化工学院专业特色,提出了在文献检索课教学中结合学科研究方向和毕业论文选题进行教学实践环节,以真正提高化学化工相关专业学生的信息素养和创新能力,实现和深化文献检索课的教学目标.     

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。     

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.     

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。     

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.     

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.     

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.