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A design software was developed within the paradigm of Technology Enhanced Learning (TEL) to facilitate learning via a repeated practice approach by Chemical Engineering students reading a core module called Fluid–Solid Systems. The software was developed to be able to generate detailed solution steps to typical engineering design problems encountered within this core module. Students were able to utilize the software to generate complete solutions to such problems for comparisons with their own hand calculations and thereby apply a repeated practice approach towards their learning of engineering design calculations. Highly favorable responses were received from students with regards to the utility of the software towards enhancing their abilities to apply the knowledge they had acquired in the module, engage in independent learning of the subject outside of formal classroom hours and understand concepts that were discussed during lectures and tutorials. Students who utilized the software more frequently throughout the semester performed better in the final examination. Interestingly, a minimum threshold in usage frequency of the software seemed to be necessary for the positive effect on performance in the final examination to be significant. As a TEL intervention to enhance students’ learning via a repeated practice approach, this pedagogical intervention was deemed highly scalable to large class sizes and effective in overcoming constraints relating to limited classroom hours. 相似文献
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《无机化学》是高等师范院校化学化工类各专业一门重要的专业基础课。对高师无机化学教学过程中的几个常见问题:课本知识与学科前沿的关系,课堂讲授与课后自学的关系,课堂教学与实验教学的关系,多媒体课件与板书的关系提出了自己的观点,并简单介绍了相应的教学实践活动,为高师无机化学教学活动提供了有益的参考。 相似文献
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按照培养创新人才的需要和创新活动过程的规律,构建了材料化学专业“创新思维实践”实践课程,通过案例讲座、自主学习、方案设计、试验求证、撰写总结报告,学生创新思维能力得到较为明显提高。 相似文献
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文章探索了一种大学生批判性思维的培养模式。讨论了批判性思维的重要意义、介绍了利用网络百科实施课堂教学的方法和步骤、对反馈结果进行分析。实践结果表明教学效果良好。 相似文献
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当前高职药学专业的发展面临着许多的挑战。一方面就业形势日趋紧张,另一方面毕业生就业素质不高,尤其是实践能力和创新能力不足。文章介绍了用创新思维指导药学专业实践教学改革的体会,阐述了创新思维在药学教学改革中的重要作用。通过转变教育观念,运用模拟车间、模拟药房、模拟市场等措施,对培养学生实践能力、创新能力发挥了重要作用。 相似文献
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为了适应化学工业发展对工程技术人材需求,重新制定了化工工艺学课程的教学计划和教学内容,在教学过程中采用灵活多样的开放式教学方法,并且紧密与化工仿真、化工工艺实验与化工生产实践相结合,提高了教学质量和教学效果,培养了学生的工程素质和创新意识。 相似文献
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Benedikt M. Aumeier Fabian Vollmer Simon Lenfers Süleyman Yüce Matthias Wessling 《化学，工程师，技术》2021,93(9):1417-1422
The alternative membrane cleaning method Temperature Enhanced Backwash exploits elevated temperatures of typically 125 °C to realize high shear rate. This exceeds usual operating temperatures by far. Therefore, the thermo-mechanical properties of polymeric membranes were investigated. A repeated load cycle testing was suited and sensitive to detect the failure of membrane material and potting. All tested PES membranes showed to be stable during the repeated load cycle testing. The potting adhesive may be decisive, thus, a tensile test at 125 °C is proposed. 相似文献
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The last few years have seen a steep rise in the use of data-driven methods in different scientific fields historically relying on theoretical or empirical approaches. Chemistry is at the forefront of this paradigm shift due to the longstanding use of computational tools involved in the calculation of molecular structures and properties. In this paper, we showcase examples from the literature as well as work in progress in our lab in order to give a brief overview on how these methods can benefit the energetic materials community. A deep learning approach is compared to “traditional” QSPR and semi-empirical approaches for molecular property prediction, and specificities inherent to energetic materials are discussed. Deep generative models for the design of new energetic materials are also presented. We conclude by giving our view on the most promising strategies for future in silico generation of new energetic materials satisfying the performance/sensitivity trade-off. 相似文献
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根据精细化工工艺学课程特点,对精细化工工艺学的教学改革进行了讨论,可以通过选择教材,开展教学方法改革,加强研究型教学,穿插学科最新发展动向,并与工程实践相结合,引入绿色化工教学理念,教改实践表明,提高了学生学习的主动性,锻炼了学生的动手能力、分析问题和解决问题的能力,培养了创新意识,提高了教学效果。 相似文献
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Youssef Barakat Tahany S. Gendy Attia I. Mohamad Abdel-Fattah M. Youssef 《Polymer International》1989,21(5):383-389
Four low molecular weight nonionic polymeric surfactants were prepared by condensing octyl-, dodecyl-, tetradecyl- and hexadecylphenol with para-formaldehyde, and then reacting the resulting resins with ethylene oxide to obtain products with the desired degree of ethoxylation. The molecular weights of the prepared alkylphenol-formaldehyde resins (prior to ethoxylation) were determined by vapour pressure osmometry. The surface tensions of aqueous solutions of these nonionic polymeric surfactants were determined by using the spinning drop method. Plotting the surface tensions obtained versus the logarithm of concentrations resulted in two lines: the pre-CMC (CMC = critical micelle concentration) line (the linear portion below the CMC value) and the post-CMC line (the linear portion above the CMC value). Least squares regression analysis was performed to get the best equation for each of the two lines. Solving these two equations simultaneously resulted in the value of the CMC and the corresponding surface tension (γCMC) for each surfactant of the four polymeric nonionic groups. The CMC values obtained for these polymeric surfactants are of the same order of magnitude obtained for monomeric and other polymeric nonionic surfactants. 相似文献
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材料化学是一门兼具理论性和实践性的新兴交叉学科,如何促进材料化学教学内容的优化组合,培养学生的创新思维,提升学生的创新实践能力,成为材料化学教学必须关注的重要方面。本文结合我们近十年来开展材料化学课程教学实践过程中所遇到的一些问题所展开的探讨,以及采取的应对措施进行了简单的小结和探索。通过一系列教学改革措施的实施,完善了材料化学的教学体系,促进了理论教学与实践教学的相互融合,收到了良好的教学效果。 相似文献
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普通化学是ISEC项目的一门通识课程。根据ISEC项目通识教育的特点,从教学内容、师资队伍、教学理念和教学方法等方面对普通化学双语教学进行了研究与探索,旨在提高普通化学的双语教学效果,推动普通化学双语教学发展。 相似文献
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《Ceramics International》2022,48(7):9595-9601
In many surfacing processes such as precision mechanical polishing, grinding and cutting, a material inevitably experiences repeated interactions with a surfacing tool, which often brings about significant surface integrity problems of the material. This paper aims to explore the deformation mechanisms of potassium dihydrogen phosphate (KDP) crystals subjected to repeated nanoindentations. The molecular dynamics (MD) method was employed to investigate the atomic scale distortion and possible phase transformation under the external stresses due to the indenter-KDP interactions. A machine learning-based method was used to facilitate the structural characterization. The results showed that the response of KDP to the repeated nanoindentations is significantly anisotropic, depending on the atomic lattice orientation to the indentation direction. On the (001) surface of KDP, the indentation will first create an irreversible amorphous phase which will remain stable in the subsequent indentation cycles. While indenting on the (100) surface, however, the amorphous phase emerged in the first indentation will transfer to a combination of orthorhombic and monoclinic phases during the subsequent indentation cycles. 相似文献
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随着科技的发展,多媒体技术仿真教学逐渐显示出它在高职教学中的优越性,使职业理论教学和实践有效结合。软件仿真教学要求教师紧扣实用型人才培养培训计划,从实际技能的角度出发,把理论教学搬到专业教室和实验室去,使学生全面了解各种设备、系统的内部结构和工作原理,从教学效果看,仿真教学提高了学生对实际生产过程的感性认识,优化课程的教学效果。 相似文献
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在一定程度上,考核评价反应了学生学习效果,考核评价方式随着教学方式的转变不断发生变化,是教学改革需考虑的重要因素之一。简单综述了终结性考核,注重学习过程的形成性考核和与专业背景相结合的多形式并存的考核三种考核模式,并从考核方式、考核主客体、考核内容及其标准三个方面对化学分析技术项目导向教学考核模式进行了探索。 相似文献
