煤质分析课程项目化教学改革探索与实践

煤质分析课程是高职工业分析技术专业和煤质分析技术专业必修的一门专业课。煤质分析课程项目化教学改革经过充分的岗位调研,与企业合作开发了贯穿课程始终的一体化训练项目,引导学生进行基于项目的自主学习,锻炼了学生"教、学、做"的能力,提高学生的职业能力和综合素质。实现培养适合各类工业企业的煤质分析与检验应用人才的目标。     

探索人才培养模式,培养新世纪高职工业分析与检验人才

结合时代背景,分析了高职工业分析与检验专业的培养目标,阐述了工业分析与检验专业应用(?)、才的培养模式。该模式发挥了深圳职业技术学院的办学优势,培养了学生的创新能力、适应能力和竞争能力。     

工业分析与检验专业如何有效进行中高职衔接教育

工业分析与检验专业人员作为国民经济生产的质量把关者,安全生产的保护者,必须具有较高的职业素质和操作技能。实施中高职衔接教育,是提高中职学生职业素养的途径之一,也是现代职业教育的需要。本文从培养目标的衔接、衔接模式的选择及课程体系的衔接方面探讨了工业分析与检验专业如何有效进行中高职衔接教育。     

高职食品分析与检验专业《仪器分析》课程信息化教学改革现状分析与对策研究

《仪器分析》作为高职食品分析与检验专业的核心课程,本文从学生、教师、信息化资源建设三方面剖析了高职食品分析与检验专业《仪器分析》课程信息化教学过程中存在的问题,并针对性的提出了《仪器分析》课程信息化教学改革策略:加强教师信息化教学设计能力培训,构建《仪器分析》信息化教学资源,优化《仪器分析》课程考核标准。     

高职《工业分析》课程实施理实一体化教学的探讨

作者在分析了高职工业分析与检验专业学生的就业岗位和目前课程教学存在的普遍问题的基础上,提出应对工业分析课程实施理实一体化教学,从课程的标准、教学的内容、教学方法与手段、课程的评价等方面入手进行教学改革探讨,同时将理实一体化应用于工业分析教学中,达到调动学生学习兴趣,提高学生的知识应用能力和自主学习能力的目的。     

工业分析检验专业实训课程双证融通式教学改革的探索

双证融通旨在将学历教育与国家职业资格证书体系衔接起来,突出实践动手能力的培养。按照双证融通的思路,应以工作体系为基础设置课程体系,以职业技能培养标准为依据设置课程标准,探讨工业分析与检验专业实训课程的教学改革,实现高职课程标准与职业资格标准、学历教育与职业资格培训的融通。     

高职院校《塑料注射成型技术》课程教学的改革与实践

本文分析了高职院校高分子材料加工专业《塑料注射成型技术》课程改革的必要性,并以徐州工业职业技术学院为例,介绍了课程教学改革的措施与改革成效,提出了对该课程的教学改革体会与建议。     

高职院校工业分析与检验专业"校企融合,三阶递进"人才培养模式研究

我国高职教育正处于改革和发展的重要阶段,人才培养模式的改革是我国高职教育改革的重点.本文阐述了高职院校工业分析-与检验专业"校企融合,三阶递进"人才培养模式的构建;基础能力、通用技术能力、专业能力为一体的课程体系的开发,教学组织安排方案的设计,以及教学方法与教学手段的改革.     

基于技能菜单的工业分析与检验专业课程改革思考

工业分析与检验专业是培养学生运用科学方法考察、分析实际应用问题,学生应具备化学分析、仪器分析、实验技巧、样品分析设计能力。根据目前学生的情况、专业需要,在教学过程中,围绕技能菜单对课程的教学改革,突出实用性,为以后学生工作的需要做准备工作。     

工业分析技术项目化的实践与应用

"工业分析技术"是高职工业分析与检验专业的一门核心专业课程,也是一门实践性很强的课程,其重点是培养学生分析问题、解决问题的能力。在"工业分析技术"课教学过程中,采用项目化教学法,将理论教学和实践教学进行融合形成具体的项目案例,以项目为引导,使学生带着任务积极主动地参与到教学过程中,在项目完成的同时,培养学生的学习兴趣,提高学生的专业知识和实践技能,从而实现高职教育培养高素质技能型人才的目标。     

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.