《材料测试与研究方法》课程的教学探讨

《材料测试与研究方法》是材料相关各专业的专业必修课。该课程涉及内容广泛,有很强的理论性和实践性。目前主要存在"教材内容陈旧"和"实践教学困难"等问题。结合本人对材料化学专业《材料测试与研究方法》课程的本科教学实践,以培养学生学习动力与提高教学效果为出发点,主要探讨了该课程的教学内容与教学方法,介绍了相关的教学经验和教学心得。     

基于成果导向与课程地图理念的中等职业教育课程规划探究——以导游服务专业为例

中等职业教育始终坚持"以就业为导向,以服务为宗旨"职业教育理念,中职学生职业竞争能力的培养是通过理论课程体系与专业实训课程的规划来实现的。对于中等职业学校导游服务专业"如何制定理论课程与专业实训课程规划""如何使培养目标与职业技能相一致""如何使学生正确进行学业与职业的规划"问题,基于成果导向教育理念和对课程地图的理解,对中等职业学校导游服务专业课程体系规划和课程地图构建进行深入剖析,提出成果导向的课程规划模式,并对其相关规划过程和内涵进行说明,旨在为中职导游服务专业合理规划课程、提升职业竞争能力提供参考依据。     

《材料物理性能》课程教学改革研究与实践

为提高学生学习专业基础课程的积极性和主动性,弥补专业教学中普遍存在的以"满堂灌"为代表的传统教学的不足,加强教学的灵活性和多样性,突出课程的"两性一度",我们对《材料物理性能》课程进行建设与改革。以"线上线下混合式"教学的教学方式代替传统教学,加强师资力量建设、突出以学生为中心、丰富教学平台建设、加强过程考核,并构建了有效监督体系,全面提高课程教学质量。     

浅议五年制高职无机化学课程中的“五个对接”

五年制高职药学专业技能型人才是以初中起点,如何使学生在高职生活的五年里系统接受学校药学类专业课程学习和企业顶岗实训后形成雄厚的职业素养一直是职业教育的研究热点之一。论文以五年制高职药学专业无机化学课程为例,探讨了为何在专业基础课程中体现"五个对接"、以及如何体现"五个对接"。     

我国普通高等学校本科应用化学专业核心课程群方向聚焦和特色凝练方法的初步研究

本文尝试梳理我国代表性普通高等学校本科应用化学专业核心课程群,研究聚焦方向、凝练特色的基本思路和基本方法.本文调查专业的"理"和"工"属性,认定专业定位和培养目标,调研专业核心课程群的现状.研究专业核心课程群聚焦方向与凝练特色的思路和方法,并尝试梳理出共性特点、基本规律和可行性思路.本文有望为专业核心课程群的建设提供有...     

师范生《无机化学》课程思政教学新模式研究

近年来"课程思政"受到了各高校的广泛关注与重视,各大高校教师纷纷研究如何发挥专业课程"课程思政"的功能,把思想政治工作贯穿各专业课程教育教学全过程,实现全程育人、全方位育人,努力开创我国高等教育事业发展新局面。本论文研究与探索了如何将"课程思政"融于我校化学专业师范生的《无机化学》课程教学中,旨在构建以专业知识为基础和师范生师德养成教育为目的的《无机化学》教学新模式。     

《高分子科学进展》课程建设初探

针对北京印刷学院"高分子材料与工程"专业定位,提出了《高分子科学进展》课程建设的目的、意义以及基本思路,从教材建设、课堂教学、实践以及考核形式等方面阐述了课程建设的基本内容,确立了以培养"具有国际视野,服务首都经济建设和社会发展需要"的学生的课程建设目标,为北京印刷学院"高分子材料与工程"专业的学生提供更多的专业基础知识和国际化视野、全面增强学生的创新创业意识和能力。     

高职食药专业群《有机化学》课程思政教改初探

以食品药品专业群基础课程有机化学的课程思政教改为例,探索在新时代背景下,如何从高职学情出发,利用互联网工具,设定符合职教特点的课程思政目标,并从"以实验为任务载体"、"以多媒体工具为抓手"、"以生活人文、专业相关案例为切入点"、"以社会热点焦点为吸睛点"、"以化学发展史、相关历史人物和故事为泪点"、"以食品药品安全事件为痛点"、"以新中国有机化学领域的创新和成就为升华"七方面,结合专业定位寻找到适宜的课程思政建设途径,进而形成教育的合力。     

“三位一体”的《化工安全工程》课程教学模式研究

《化工安全工程》课程是安全工程专业的重要核心课程。根据工程教育认证通用标准和安全工程专业补充标准所提出的毕业要求,结合本专业的办学定位和培养目标,以甲醇合成与精制工艺过程安全为主线,提出了"课程教学、课程设计、课程实验"于一体的"三位一体"的《化工安全工程》课程教学模式。实践表明,该教学模式从理论到实践、从虚拟到现实有效促进了学生分析问题和解决问题的能力。     

基于工程教育专业认证的“化工过程分析与合成”课程教学大纲构建和优化

工程教育专业认证已成为工程教育改革的必然趋势和专业发展的内在要求。本文结合工程教育专业认证"以学生为中心、以成果为导向、持续改进"三大核心理念,在"化工过程分析与合成"课程教学大纲的构建和优化中,进一步明确课程目标和教学要求,并通过改革课程教学方法以及完善多维度考评机制,以便更好的实现化学工程与工艺专业的人才培养目标。     

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。     

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.